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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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CC=go
BUILD=build -v -trimpath
VERSION=$(shell cat VERSION)
GCFLAGS=-gcflags '-e'
LDFLAGS=-ldflags '-buildid=$(VERSION) -X main.version=$(VERSION) -s -w'
PROGRAM=mailgo
CMD=-o $(PROGRAM) main.go
ENV=GOGC=0 CGO_ENABLED=0 GO111MODULE=on
all: $(PROGRAM)
setup:
$(CC) install github.com/client9/misspell/cmd/misspell@latest
$(CC) install honnef.co/go/tools/cmd/staticcheck@latest
release: clean gofmt codeqa
$(ENV) $(CC) $(BUILD) $(GCFLAGS) $(LDFLAGS) $(CMD)
release-vendor: clean gofmt codeqa
$(ENV) $(CC) $(BUILD) -mod=vendor $(GCFLAGS) $(LDFLAGS) $(CMD)
vendor: clean gofmt
$(ENV) $(CC) $(BUILD) -mod=vendor $(GCFLAGS) $(LDFLAGS) $(CMD)
$(PROGRAM): clean gofmt
$(ENV) $(CC) $(BUILD) $(GCFLAGS) $(LDFLAGS) $(CMD)
clean:
$(CC) clean -x
gofmt:
$(CC) fmt ./...
codeqa: govet misspell staticcheck test
govet:
$(CC) vet ./...
update:
$(ENV) $(CC) get -u ./...
misspell:
$(GOPATH)/bin/misspell Makefile README.md main.go
staticcheck:
$(GOPATH)/bin/staticcheck ./...
test:
ifeq ($(shell go env GOARCH), $(shell go env GOHOSTARCH))
ifeq ($(shell go env GOOS), $(shell go env GOHOSTOS))
$(CC) test ./...
else
$(info skipping tests of other platforms)
endif
else
$(info skipping tests of other platforms)
endif
.PHONY: setup release release-vendor vendor build clean codeqa gofmt govet misspell staticcheck test

3
README.md Normal file
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# MailGo
This is a simple web application to send mails.

1
VERSION Normal file
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@ -0,0 +1 @@
0.1

10
go.mod Normal file
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@ -0,0 +1,10 @@
module mailgo
go 1.26.1
require (
git.giftfish.de/ston1th/godrop/v2 v2.2.0
github.com/go-logr/logr v1.4.3
)
require golang.org/x/sys v0.24.0 // indirect

6
go.sum Normal file
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@ -0,0 +1,6 @@
git.giftfish.de/ston1th/godrop/v2 v2.2.0 h1:jdcPJeotiuug3tC4zXvwnauen1Y7kfF9CbFKQbGttYU=
git.giftfish.de/ston1th/godrop/v2 v2.2.0/go.mod h1:gDAD0cWURkN0cMAjjSKB6a6jqIXvOrY8Th25HdoJAyg=
github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

198
main.go Normal file
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// Copyright (C) 2026 Marius Schellenberger
package main
import (
"errors"
"flag"
"fmt"
"log/slog"
"net/http"
"net/smtp"
"os"
"strings"
"git.giftfish.de/ston1th/godrop/v2"
"github.com/go-logr/logr"
)
var (
version string
listen string
addr string
domain string
log logr.Logger
)
var allowedFiles = []string{
"/etc/resolv.conf",
"/etc/localtime",
"/etc/hosts",
"/etc/ssl/cert.pem",
}
func fatal(err error) {
log.Error(err, "fatal error")
os.Exit(1)
}
func main() {
flag.StringVar(&listen, "listen", ":7979", "listen addr")
flag.StringVar(&addr, "addr", "", "smtp server addr")
flag.StringVar(&domain, "domain", "", "base sender domain (example: example.com)")
flag.Parse()
log = logr.FromSlogHandler(slog.NewTextHandler(os.Stdout, nil))
log.Info("starting mailgo", "version", version)
if addr == "" {
fatal(errors.New("missing smtp server addr"))
}
if domain == "" {
fatal(errors.New("missing base sender domain"))
}
log.Info("config",
"listen", listen,
"addr", addr,
"domain", domain,
)
if err := godrop.PledgePromises("stdio inet rpath unveil"); err != nil {
fatal(err)
}
for _, file := range allowedFiles {
if err := godrop.Unveil(file, "r"); err != nil {
fatal(err)
}
}
if err := godrop.UnveilBlock(); err != nil {
fatal(err)
}
mc := &mailClient{
server: addr,
domain: domain,
}
http.HandleFunc("/send", func(w http.ResponseWriter, r *http.Request) {
if r.Method != "POST" {
http.Redirect(w, r, "/?err=method", http.StatusFound)
return
}
log := log.WithName("send")
err := r.ParseForm()
if err != nil {
http.Redirect(w, r, "/?err=parse", http.StatusFound)
return
}
from := r.PostForm.Get("from")
to := r.PostForm.Get("to")
subject := r.PostForm.Get("subject")
if from == "" ||
to == "" ||
subject == "" {
http.Redirect(w, r, "/?err=missing", http.StatusFound)
return
}
if !strings.ContainsAny(to, "@") {
http.Redirect(w, r, "/?err=invalid", http.StatusFound)
return
}
log = log.WithValues("to", to, "from", from, "subject", subject)
log.Info("sending mail")
msg := r.PostForm.Get("message")
err = mc.sendMail(from, to, subject, msg)
if err != nil {
http.Redirect(w, r, "/?err=send", http.StatusFound)
log.Error(err, "mail send failed")
return
}
http.Redirect(w, r, "/", http.StatusFound)
})
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(page))
})
err := http.ListenAndServe(listen, nil)
if err != nil {
fatal(err)
}
}
type mailClient struct {
server string
domain string
}
const msgTmpl = "From: %s\r\n" +
"To: %s\r\n" +
"Subject: %s\r\n\r\n" +
"%s\r\n"
func (mc *mailClient) sendMail(from, to, subj, msg string) error {
from += "@" + mc.domain
message := fmt.Sprintf(msgTmpl, from, to, subj, msg)
return smtp.SendMail(mc.server, nil, from, []string{to}, []byte(message))
}
const page = `<!doctype html><html lang="en">
<head>
<title>MailGo</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="theme-color" content="#009670">
<meta name="description" content="MailGo">
<style>
body {
font: 20px Helvetica, sans-serif;
background-color: #303030;
color: #e6e6e6;
margin: 0px;
padding: 0 150px 0 150px;
}
@media only screen and (max-width: 800px) {
body {
padding: 0;
}
}
div {
margin-bottom: 10px;
}
label {
display: inline-block;
width: 100px;
text-align: left;
}
input, textarea {
color: #e2e2e2;
background-color: #444444;
border-radius: 0.375rem;
border: 1px solid #222;
font-size: 1rem;
font-weight: 400;
}
textarea {
width: 80%;
}
h3 {
background-color: #009670;
margin: 0 0 20px 0;
padding: 10px 0 10px 0;
text-align: center;
color: #fff;
}
</style>
</head>
<body>
<h3>MailGo</h3>
<center>
<form action="/send" method="post" autocomplete="off">
<div><label for="from">From:</label></div>
<div><input type="text" id="from" name="from" required autofocus></input></div>
<div><label for="to">To:</label></div>
<div><input type="text" id="to" name="to" required></input></div>
<div><label for="subject">Subject:</label></div>
<div><input type="text" id="subject" name="subject" required></input></div>
<div><label for="message">Message:</label></div>
<div><textarea id="message" name="message" rows="10" spellcheck="false"></textarea></div>
<input type="submit" style="font-size:1em;" value="Send"></input>
</form>
</center></body></html>`

29
scripts/install_openbsd.sh Executable file
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#!/bin/sh
cat <<'EOF'> /etc/rc.d/mailgo
#!/bin/ksh
daemon="/usr/local/sbin/mailgo"
daemon_user="_mailgo"
daemon_logger="daemon.info"
. /etc/rc.d/rc.subr
pexp=".*${daemon}.*"
rc_bg=YES
rc_reload=NO
rc_cmd $1
EOF
chmod 555 /etc/rc.d/mailgo
rcctl enable mailgo
rcctl set mailgo flags -addr "127.0.0.1:2525" -domain "example.com" -listen "127.0.0.1:7979"
groupadd _mailgo
useradd -d /var/empty -s /sbin/nologin -g _mailgo _mailgo
cat <<EOF
copy your mailgo binary to /usr/local/sbin/mailgo
then run: rcctl start mailgo
EOF

3
vendor/git.giftfish.de/ston1th/godrop/v2/.gitignore vendored Normal file
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@ -0,0 +1,3 @@
port80
port80fg
port80and443

24
vendor/git.giftfish.de/ston1th/godrop/v2/LICENSE vendored Normal file
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@ -0,0 +1,24 @@
Copyright (C) 2022 Marius Schellenberger
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* The names of the authors and/or contributors may not be used to
endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ston1th BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

5
vendor/git.giftfish.de/ston1th/godrop/v2/README.md vendored Normal file
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# godrop - drop privileges
Godrop is a simple library to drop privileges on Linux and OpenBSD.
See the examples directory on how to use the `Drop` and `MultiDrop` functions.

137
vendor/git.giftfish.de/ston1th/godrop/v2/godrop.go vendored Normal file
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// Copyright (C) 2022 Marius Schellenberger
//go:build go1.11
// +build go1.11
// Package godrop provides a simple library to drop privileges on Linux and OpenBSD.
package godrop
import (
"errors"
"fmt"
"net"
"os"
"os/exec"
"os/signal"
"syscall"
)
// Config represents the drop config
type Config struct {
// User is the user to drop privileges to.
User string
// Group is the group to drop privileges to.
Group string
// Chroot is the directory to chroot into. Leave this emptry for no chroot.
// When compiling without cgo, make sure the chroot directory contains the /etc/passwd and /etc/group files.
Chroot string
// Set to true, to run the process in the foreground.
Foreground bool
}
// Drop will spawn a new process and hand over the listening socket file descriptor
func Drop(c Config, f func() (net.Listener, error)) error {
return MultiDrop(c, func() ([]net.Listener, error) {
l, err := f()
return []net.Listener{l}, err
})
}
// MultiDrop will spawn a new process and hand over the all listening sockets
func MultiDrop(c Config, f func() ([]net.Listener, error)) error {
uid, err := userID(c.User)
if err != nil {
return errors.New("godrop: " + err.Error())
}
if uid == 0 {
return fmt.Errorf("godrop: you can't drop privileges to uid 0 (%s)", c.User)
}
gid, err := groupID(c.Group)
if err != nil {
return errors.New("godrop: " + err.Error())
}
switch os.Getuid() {
case 0:
cmd := exec.Command(os.Args[0], os.Args[1:]...)
ln, err := f()
if err != nil {
return errors.New("godrop: " + err.Error())
}
for i, v := range ln {
var f *os.File
switch l := v.(type) {
case *net.TCPListener:
f, err = l.File()
l.Close()
case *net.UnixListener:
f, err = l.File()
l.Close()
default:
return fmt.Errorf("godrop: index %d listener is not type of either *net.TCPListener or *net.UnixListener", i)
}
if err != nil {
return fmt.Errorf("godrop: index %d %s", i, err)
}
cmd.ExtraFiles = append(cmd.ExtraFiles, f)
}
cmd.SysProcAttr = &syscall.SysProcAttr{
Chroot: c.Chroot,
Credential: &syscall.Credential{
Uid: uint32(uid),
Gid: uint32(gid),
},
Setsid: true,
}
if c.Foreground {
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
}
if err := cmd.Start(); err != nil {
return errors.New("godrop: " + err.Error())
}
if c.Foreground {
go func() {
term := make(chan os.Signal)
signal.Notify(term, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
sigs := make(chan os.Signal)
signal.Notify(sigs, syscall.SIGSTOP, syscall.SIGCONT, syscall.SIGUSR1, syscall.SIGUSR2)
for {
select {
case sig := <-term:
cmd.Process.Signal(sig)
return
case sig := <-sigs:
cmd.Process.Signal(sig)
}
}
}()
_ = cmd.Wait()
os.Exit(int(cmd.ProcessState.Sys().(syscall.WaitStatus)))
}
cmd.Process.Release()
os.Exit(0)
case uid:
return nil
}
return errors.New("godrop: dropping priviledges failed")
}
// GetListener returns the listener socket of file descriptor 3
func GetListener() (net.Listener, error) {
return GetListenerFd(3)
}
// GetListenerFd returns the listener socket of the given file descriptor
func GetListenerFd(fd int) (net.Listener, error) {
if fd < 3 {
return nil, errors.New("godrop: fd is less than 3")
}
f := os.NewFile(uintptr(fd), "")
defer f.Close()
return net.FileListener(f)
}

35
vendor/git.giftfish.de/ston1th/godrop/v2/lookup.go vendored Normal file
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// Copyright (C) 2022 Marius Schellenberger
//go:build go1.11
// +build go1.11
package godrop
import (
"os/user"
"strconv"
)
func atoi(a string) (int, error) {
i, err := strconv.Atoi(a)
if err != nil {
return -1, err
}
return i, nil
}
func userID(username string) (int, error) {
u, err := user.Lookup(username)
if err != nil {
return -1, err
}
return atoi(u.Uid)
}
func groupID(name string) (int, error) {
g, err := user.LookupGroup(name)
if err != nil {
return -1, err
}
return atoi(g.Gid)
}

15
vendor/git.giftfish.de/ston1th/godrop/v2/pledge.go vendored Normal file
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@ -0,0 +1,15 @@
// Copyright (C) 2022 Marius Schellenberger
//go:build !openbsd
// +build !openbsd
package godrop
// Pledge is currently only supported on OpenBSD.
func Pledge(promises, execpromises string) error { return nil }
// PledgePromises is currently only supported on OpenBSD.
func PledgePromises(promises string) error { return nil }
// PledgeExecPromises is currently only supported on OpenBSD.
func PledgeExecpromises(execpromises string) error { return nil }

44
vendor/git.giftfish.de/ston1th/godrop/v2/pledge_openbsd.go vendored Normal file
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@ -0,0 +1,44 @@
// Copyright (C) 2022 Marius Schellenberger
//go:build openbsd
// +build openbsd
package godrop
import (
"errors"
"golang.org/x/sys/unix"
)
// Pledge is a wrapper for x/sys/unix Pledge.
//
// See https://go.googlesource.com/sys/+/master/unix/openbsd_pledge.go for usage.
func Pledge(promises, execpromises string) (err error) {
err = unix.Pledge(promises, execpromises)
if err != nil {
err = errors.New("pledge: " + err.Error())
}
return
}
// PledgePromises is a wrapper for x/sys/unix PledgePromises.
//
// See https://go.googlesource.com/sys/+/master/unix/openbsd_pledge.go for usage.
func PledgePromises(promises string) (err error) {
err = unix.PledgePromises(promises)
if err != nil {
err = errors.New("pledge: " + err.Error())
}
return
}
// PledgeExecpromises is a wrapper for x/sys/unix PledgeExecpromises.
//
// See https://go.googlesource.com/sys/+/master/unix/openbsd_pledge.go for usage.
func PledgeExecpromises(execpromises string) (err error) {
err = unix.PledgeExecpromises(execpromises)
if err != nil {
err = errors.New("pledge: " + err.Error())
}
return
}

12
vendor/git.giftfish.de/ston1th/godrop/v2/unveil.go vendored Normal file
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@ -0,0 +1,12 @@
// Copyright (C) 2022 Marius Schellenberger
//go:build !openbsd
// +build !openbsd
package godrop
// Unveil is currently only supported on OpenBSD.
func Unveil(path, flags string) error { return nil }
// UnveilBlock is currently only supported on OpenBSD.
func UnveilBlock() error { return nil }

33
vendor/git.giftfish.de/ston1th/godrop/v2/unveil_openbsd.go vendored Normal file
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@ -0,0 +1,33 @@
// Copyright (C) 2022 Marius Schellenberger
//go:build openbsd
// +build openbsd
package godrop
import (
"errors"
"golang.org/x/sys/unix"
)
// Unveil is a wrapper for x/sys/unix Unveil.
//
// See https://go.googlesource.com/sys/+/master/unix/openbsd_unveil.go for usage.
func Unveil(path, flags string) (err error) {
err = unix.Unveil(path, flags)
if err != nil {
err = errors.New("unveil: " + err.Error())
}
return
}
// UnveilBlock is a wrapper for x/sys/unix UnveilBlock.
//
// See https://go.googlesource.com/sys/+/master/unix/openbsd_unveil.go for usage.
func UnveilBlock() (err error) {
err = unix.UnveilBlock()
if err != nil {
err = errors.New("unveil: " + err.Error())
}
return
}

28
vendor/github.com/go-logr/logr/.golangci.yaml generated vendored Normal file
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@ -0,0 +1,28 @@
version: "2"
run:
timeout: 1m
tests: true
linters:
default: none
enable: # please keep this alphabetized
- asasalint
- asciicheck
- copyloopvar
- dupl
- errcheck
- forcetypeassert
- goconst
- gocritic
- govet
- ineffassign
- misspell
- musttag
- revive
- staticcheck
- unused
issues:
max-issues-per-linter: 0
max-same-issues: 10

6
vendor/github.com/go-logr/logr/CHANGELOG.md generated vendored Normal file
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@ -0,0 +1,6 @@
# CHANGELOG
## v1.0.0-rc1
This is the first logged release. Major changes (including breaking changes)
have occurred since earlier tags.

17
vendor/github.com/go-logr/logr/CONTRIBUTING.md generated vendored Normal file
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@ -0,0 +1,17 @@
# Contributing
Logr is open to pull-requests, provided they fit within the intended scope of
the project. Specifically, this library aims to be VERY small and minimalist,
with no external dependencies.
## Compatibility
This project intends to follow [semantic versioning](http://semver.org) and
is very strict about compatibility. Any proposed changes MUST follow those
rules.
## Performance
As a logging library, logr must be as light-weight as possible. Any proposed
code change must include results of running the [benchmark](./benchmark)
before and after the change.

201
vendor/github.com/go-logr/logr/LICENSE generated vendored Normal file
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
separable from, or merely link (or bind by name) to the interfaces of,
the Work and Derivative Works thereof.
"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
submitted to Licensor for inclusion in the Work by the copyright owner
or by an individual or Legal Entity authorized to submit on behalf of
the copyright owner. For the purposes of this definition, "submitted"
means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems,
and issue tracking systems that are managed by, or on behalf of, the
Licensor for the purpose of discussing and improving the Work, but
excluding communication that is conspicuously marked or otherwise
designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
3. Grant of Patent License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
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# A minimal logging API for Go
[![Go Reference](https://pkg.go.dev/badge/github.com/go-logr/logr.svg)](https://pkg.go.dev/github.com/go-logr/logr)
[![Go Report Card](https://goreportcard.com/badge/github.com/go-logr/logr)](https://goreportcard.com/report/github.com/go-logr/logr)
[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/go-logr/logr/badge)](https://securityscorecards.dev/viewer/?platform=github.com&org=go-logr&repo=logr)
logr offers an(other) opinion on how Go programs and libraries can do logging
without becoming coupled to a particular logging implementation. This is not
an implementation of logging - it is an API. In fact it is two APIs with two
different sets of users.
The `Logger` type is intended for application and library authors. It provides
a relatively small API which can be used everywhere you want to emit logs. It
defers the actual act of writing logs (to files, to stdout, or whatever) to the
`LogSink` interface.
The `LogSink` interface is intended for logging library implementers. It is a
pure interface which can be implemented by logging frameworks to provide the actual logging
functionality.
This decoupling allows application and library developers to write code in
terms of `logr.Logger` (which has very low dependency fan-out) while the
implementation of logging is managed "up stack" (e.g. in or near `main()`.)
Application developers can then switch out implementations as necessary.
Many people assert that libraries should not be logging, and as such efforts
like this are pointless. Those people are welcome to convince the authors of
the tens-of-thousands of libraries that *DO* write logs that they are all
wrong. In the meantime, logr takes a more practical approach.
## Typical usage
Somewhere, early in an application's life, it will make a decision about which
logging library (implementation) it actually wants to use. Something like:
```
func main() {
// ... other setup code ...
// Create the "root" logger. We have chosen the "logimpl" implementation,
// which takes some initial parameters and returns a logr.Logger.
logger := logimpl.New(param1, param2)
// ... other setup code ...
```
Most apps will call into other libraries, create structures to govern the flow,
etc. The `logr.Logger` object can be passed to these other libraries, stored
in structs, or even used as a package-global variable, if needed. For example:
```
app := createTheAppObject(logger)
app.Run()
```
Outside of this early setup, no other packages need to know about the choice of
implementation. They write logs in terms of the `logr.Logger` that they
received:
```
type appObject struct {
// ... other fields ...
logger logr.Logger
// ... other fields ...
}
func (app *appObject) Run() {
app.logger.Info("starting up", "timestamp", time.Now())
// ... app code ...
```
## Background
If the Go standard library had defined an interface for logging, this project
probably would not be needed. Alas, here we are.
When the Go developers started developing such an interface with
[slog](https://github.com/golang/go/issues/56345), they adopted some of the
logr design but also left out some parts and changed others:
| Feature | logr | slog |
|---------|------|------|
| High-level API | `Logger` (passed by value) | `Logger` (passed by [pointer](https://github.com/golang/go/issues/59126)) |
| Low-level API | `LogSink` | `Handler` |
| Stack unwinding | done by `LogSink` | done by `Logger` |
| Skipping helper functions | `WithCallDepth`, `WithCallStackHelper` | [not supported by Logger](https://github.com/golang/go/issues/59145) |
| Generating a value for logging on demand | `Marshaler` | `LogValuer` |
| Log levels | >= 0, higher meaning "less important" | positive and negative, with 0 for "info" and higher meaning "more important" |
| Error log entries | always logged, don't have a verbosity level | normal log entries with level >= `LevelError` |
| Passing logger via context | `NewContext`, `FromContext` | no API |
| Adding a name to a logger | `WithName` | no API |
| Modify verbosity of log entries in a call chain | `V` | no API |
| Grouping of key/value pairs | not supported | `WithGroup`, `GroupValue` |
| Pass context for extracting additional values | no API | API variants like `InfoCtx` |
The high-level slog API is explicitly meant to be one of many different APIs
that can be layered on top of a shared `slog.Handler`. logr is one such
alternative API, with [interoperability](#slog-interoperability) provided by
some conversion functions.
### Inspiration
Before you consider this package, please read [this blog post by the
inimitable Dave Cheney][warning-makes-no-sense]. We really appreciate what
he has to say, and it largely aligns with our own experiences.
### Differences from Dave's ideas
The main differences are:
1. Dave basically proposes doing away with the notion of a logging API in favor
of `fmt.Printf()`. We disagree, especially when you consider things like output
locations, timestamps, file and line decorations, and structured logging. This
package restricts the logging API to just 2 types of logs: info and error.
Info logs are things you want to tell the user which are not errors. Error
logs are, well, errors. If your code receives an `error` from a subordinate
function call and is logging that `error` *and not returning it*, use error
logs.
2. Verbosity-levels on info logs. This gives developers a chance to indicate
arbitrary grades of importance for info logs, without assigning names with
semantic meaning such as "warning", "trace", and "debug." Superficially this
may feel very similar, but the primary difference is the lack of semantics.
Because verbosity is a numerical value, it's safe to assume that an app running
with higher verbosity means more (and less important) logs will be generated.
## Implementations (non-exhaustive)
There are implementations for the following logging libraries:
- **a function** (can bridge to non-structured libraries): [funcr](https://github.com/go-logr/logr/tree/master/funcr)
- **a testing.T** (for use in Go tests, with JSON-like output): [testr](https://github.com/go-logr/logr/tree/master/testr)
- **github.com/google/glog**: [glogr](https://github.com/go-logr/glogr)
- **k8s.io/klog** (for Kubernetes): [klogr](https://git.k8s.io/klog/klogr)
- **a testing.T** (with klog-like text output): [ktesting](https://git.k8s.io/klog/ktesting)
- **go.uber.org/zap**: [zapr](https://github.com/go-logr/zapr)
- **log** (the Go standard library logger): [stdr](https://github.com/go-logr/stdr)
- **github.com/sirupsen/logrus**: [logrusr](https://github.com/bombsimon/logrusr)
- **github.com/wojas/genericr**: [genericr](https://github.com/wojas/genericr) (makes it easy to implement your own backend)
- **logfmt** (Heroku style [logging](https://www.brandur.org/logfmt)): [logfmtr](https://github.com/iand/logfmtr)
- **github.com/rs/zerolog**: [zerologr](https://github.com/go-logr/zerologr)
- **github.com/go-kit/log**: [gokitlogr](https://github.com/tonglil/gokitlogr) (also compatible with github.com/go-kit/kit/log since v0.12.0)
- **bytes.Buffer** (writing to a buffer): [bufrlogr](https://github.com/tonglil/buflogr) (useful for ensuring values were logged, like during testing)
## slog interoperability
Interoperability goes both ways, using the `logr.Logger` API with a `slog.Handler`
and using the `slog.Logger` API with a `logr.LogSink`. `FromSlogHandler` and
`ToSlogHandler` convert between a `logr.Logger` and a `slog.Handler`.
As usual, `slog.New` can be used to wrap such a `slog.Handler` in the high-level
slog API.
### Using a `logr.LogSink` as backend for slog
Ideally, a logr sink implementation should support both logr and slog by
implementing both the normal logr interface(s) and `SlogSink`. Because
of a conflict in the parameters of the common `Enabled` method, it is [not
possible to implement both slog.Handler and logr.Sink in the same
type](https://github.com/golang/go/issues/59110).
If both are supported, log calls can go from the high-level APIs to the backend
without the need to convert parameters. `FromSlogHandler` and `ToSlogHandler` can
convert back and forth without adding additional wrappers, with one exception:
when `Logger.V` was used to adjust the verbosity for a `slog.Handler`, then
`ToSlogHandler` has to use a wrapper which adjusts the verbosity for future
log calls.
Such an implementation should also support values that implement specific
interfaces from both packages for logging (`logr.Marshaler`, `slog.LogValuer`,
`slog.GroupValue`). logr does not convert those.
Not supporting slog has several drawbacks:
- Recording source code locations works correctly if the handler gets called
through `slog.Logger`, but may be wrong in other cases. That's because a
`logr.Sink` does its own stack unwinding instead of using the program counter
provided by the high-level API.
- slog levels <= 0 can be mapped to logr levels by negating the level without a
loss of information. But all slog levels > 0 (e.g. `slog.LevelWarning` as
used by `slog.Logger.Warn`) must be mapped to 0 before calling the sink
because logr does not support "more important than info" levels.
- The slog group concept is supported by prefixing each key in a key/value
pair with the group names, separated by a dot. For structured output like
JSON it would be better to group the key/value pairs inside an object.
- Special slog values and interfaces don't work as expected.
- The overhead is likely to be higher.
These drawbacks are severe enough that applications using a mixture of slog and
logr should switch to a different backend.
### Using a `slog.Handler` as backend for logr
Using a plain `slog.Handler` without support for logr works better than the
other direction:
- All logr verbosity levels can be mapped 1:1 to their corresponding slog level
by negating them.
- Stack unwinding is done by the `SlogSink` and the resulting program
counter is passed to the `slog.Handler`.
- Names added via `Logger.WithName` are gathered and recorded in an additional
attribute with `logger` as key and the names separated by slash as value.
- `Logger.Error` is turned into a log record with `slog.LevelError` as level
and an additional attribute with `err` as key, if an error was provided.
The main drawback is that `logr.Marshaler` will not be supported. Types should
ideally support both `logr.Marshaler` and `slog.Valuer`. If compatibility
with logr implementations without slog support is not important, then
`slog.Valuer` is sufficient.
### Context support for slog
Storing a logger in a `context.Context` is not supported by
slog. `NewContextWithSlogLogger` and `FromContextAsSlogLogger` can be
used to fill this gap. They store and retrieve a `slog.Logger` pointer
under the same context key that is also used by `NewContext` and
`FromContext` for `logr.Logger` value.
When `NewContextWithSlogLogger` is followed by `FromContext`, the latter will
automatically convert the `slog.Logger` to a
`logr.Logger`. `FromContextAsSlogLogger` does the same for the other direction.
With this approach, binaries which use either slog or logr are as efficient as
possible with no unnecessary allocations. This is also why the API stores a
`slog.Logger` pointer: when storing a `slog.Handler`, creating a `slog.Logger`
on retrieval would need to allocate one.
The downside is that switching back and forth needs more allocations. Because
logr is the API that is already in use by different packages, in particular
Kubernetes, the recommendation is to use the `logr.Logger` API in code which
uses contextual logging.
An alternative to adding values to a logger and storing that logger in the
context is to store the values in the context and to configure a logging
backend to extract those values when emitting log entries. This only works when
log calls are passed the context, which is not supported by the logr API.
With the slog API, it is possible, but not
required. https://github.com/veqryn/slog-context is a package for slog which
provides additional support code for this approach. It also contains wrappers
for the context functions in logr, so developers who prefer to not use the logr
APIs directly can use those instead and the resulting code will still be
interoperable with logr.
## FAQ
### Conceptual
#### Why structured logging?
- **Structured logs are more easily queryable**: Since you've got
key-value pairs, it's much easier to query your structured logs for
particular values by filtering on the contents of a particular key --
think searching request logs for error codes, Kubernetes reconcilers for
the name and namespace of the reconciled object, etc.
- **Structured logging makes it easier to have cross-referenceable logs**:
Similarly to searchability, if you maintain conventions around your
keys, it becomes easy to gather all log lines related to a particular
concept.
- **Structured logs allow better dimensions of filtering**: if you have
structure to your logs, you've got more precise control over how much
information is logged -- you might choose in a particular configuration
to log certain keys but not others, only log lines where a certain key
matches a certain value, etc., instead of just having v-levels and names
to key off of.
- **Structured logs better represent structured data**: sometimes, the
data that you want to log is inherently structured (think tuple-link
objects.) Structured logs allow you to preserve that structure when
outputting.
#### Why V-levels?
**V-levels give operators an easy way to control the chattiness of log
operations**. V-levels provide a way for a given package to distinguish
the relative importance or verbosity of a given log message. Then, if
a particular logger or package is logging too many messages, the user
of the package can simply change the v-levels for that library.
#### Why not named levels, like Info/Warning/Error?
Read [Dave Cheney's post][warning-makes-no-sense]. Then read [Differences
from Dave's ideas](#differences-from-daves-ideas).
#### Why not allow format strings, too?
**Format strings negate many of the benefits of structured logs**:
- They're not easily searchable without resorting to fuzzy searching,
regular expressions, etc.
- They don't store structured data well, since contents are flattened into
a string.
- They're not cross-referenceable.
- They don't compress easily, since the message is not constant.
(Unless you turn positional parameters into key-value pairs with numerical
keys, at which point you've gotten key-value logging with meaningless
keys.)
### Practical
#### Why key-value pairs, and not a map?
Key-value pairs are *much* easier to optimize, especially around
allocations. Zap (a structured logger that inspired logr's interface) has
[performance measurements](https://github.com/uber-go/zap#performance)
that show this quite nicely.
While the interface ends up being a little less obvious, you get
potentially better performance, plus avoid making users type
`map[string]string{}` every time they want to log.
#### What if my V-levels differ between libraries?
That's fine. Control your V-levels on a per-logger basis, and use the
`WithName` method to pass different loggers to different libraries.
Generally, you should take care to ensure that you have relatively
consistent V-levels within a given logger, however, as this makes deciding
on what verbosity of logs to request easier.
#### But I really want to use a format string!
That's not actually a question. Assuming your question is "how do
I convert my mental model of logging with format strings to logging with
constant messages":
1. Figure out what the error actually is, as you'd write in a TL;DR style,
and use that as a message.
2. For every place you'd write a format specifier, look to the word before
it, and add that as a key value pair.
For instance, consider the following examples (all taken from spots in the
Kubernetes codebase):
- `klog.V(4).Infof("Client is returning errors: code %v, error %v",
responseCode, err)` becomes `logger.Error(err, "client returned an
error", "code", responseCode)`
- `klog.V(4).Infof("Got a Retry-After %ds response for attempt %d to %v",
seconds, retries, url)` becomes `logger.V(4).Info("got a retry-after
response when requesting url", "attempt", retries, "after
seconds", seconds, "url", url)`
If you *really* must use a format string, use it in a key's value, and
call `fmt.Sprintf` yourself. For instance: `log.Printf("unable to
reflect over type %T")` becomes `logger.Info("unable to reflect over
type", "type", fmt.Sprintf("%T"))`. In general though, the cases where
this is necessary should be few and far between.
#### How do I choose my V-levels?
This is basically the only hard constraint: increase V-levels to denote
more verbose or more debug-y logs.
Otherwise, you can start out with `0` as "you always want to see this",
`1` as "common logging that you might *possibly* want to turn off", and
`10` as "I would like to performance-test your log collection stack."
Then gradually choose levels in between as you need them, working your way
down from 10 (for debug and trace style logs) and up from 1 (for chattier
info-type logs). For reference, slog pre-defines -4 for debug logs
(corresponds to 4 in logr), which matches what is
[recommended for Kubernetes](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/logging.md#what-method-to-use).
#### How do I choose my keys?
Keys are fairly flexible, and can hold more or less any string
value. For best compatibility with implementations and consistency
with existing code in other projects, there are a few conventions you
should consider.
- Make your keys human-readable.
- Constant keys are generally a good idea.
- Be consistent across your codebase.
- Keys should naturally match parts of the message string.
- Use lower case for simple keys and
[lowerCamelCase](https://en.wiktionary.org/wiki/lowerCamelCase) for
more complex ones. Kubernetes is one example of a project that has
[adopted that
convention](https://github.com/kubernetes/community/blob/HEAD/contributors/devel/sig-instrumentation/migration-to-structured-logging.md#name-arguments).
While key names are mostly unrestricted (and spaces are acceptable),
it's generally a good idea to stick to printable ascii characters, or at
least match the general character set of your log lines.
#### Why should keys be constant values?
The point of structured logging is to make later log processing easier. Your
keys are, effectively, the schema of each log message. If you use different
keys across instances of the same log line, you will make your structured logs
much harder to use. `Sprintf()` is for values, not for keys!
#### Why is this not a pure interface?
The Logger type is implemented as a struct in order to allow the Go compiler to
optimize things like high-V `Info` logs that are not triggered. Not all of
these implementations are implemented yet, but this structure was suggested as
a way to ensure they *can* be implemented. All of the real work is behind the
`LogSink` interface.
[warning-makes-no-sense]: http://dave.cheney.net/2015/11/05/lets-talk-about-logging

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# Security Policy
If you have discovered a security vulnerability in this project, please report it
privately. **Do not disclose it as a public issue.** This gives us time to work with you
to fix the issue before public exposure, reducing the chance that the exploit will be
used before a patch is released.
You may submit the report in the following ways:
- send an email to go-logr-security@googlegroups.com
- send us a [private vulnerability report](https://github.com/go-logr/logr/security/advisories/new)
Please provide the following information in your report:
- A description of the vulnerability and its impact
- How to reproduce the issue
We ask that you give us 90 days to work on a fix before public exposure.

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/*
Copyright 2023 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
// contextKey is how we find Loggers in a context.Context. With Go < 1.21,
// the value is always a Logger value. With Go >= 1.21, the value can be a
// Logger value or a slog.Logger pointer.
type contextKey struct{}
// notFoundError exists to carry an IsNotFound method.
type notFoundError struct{}
func (notFoundError) Error() string {
return "no logr.Logger was present"
}
func (notFoundError) IsNotFound() bool {
return true
}

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//go:build !go1.21
// +build !go1.21
/*
Copyright 2019 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
import (
"context"
)
// FromContext returns a Logger from ctx or an error if no Logger is found.
func FromContext(ctx context.Context) (Logger, error) {
if v, ok := ctx.Value(contextKey{}).(Logger); ok {
return v, nil
}
return Logger{}, notFoundError{}
}
// FromContextOrDiscard returns a Logger from ctx. If no Logger is found, this
// returns a Logger that discards all log messages.
func FromContextOrDiscard(ctx context.Context) Logger {
if v, ok := ctx.Value(contextKey{}).(Logger); ok {
return v
}
return Discard()
}
// NewContext returns a new Context, derived from ctx, which carries the
// provided Logger.
func NewContext(ctx context.Context, logger Logger) context.Context {
return context.WithValue(ctx, contextKey{}, logger)
}

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//go:build go1.21
// +build go1.21
/*
Copyright 2019 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
import (
"context"
"fmt"
"log/slog"
)
// FromContext returns a Logger from ctx or an error if no Logger is found.
func FromContext(ctx context.Context) (Logger, error) {
v := ctx.Value(contextKey{})
if v == nil {
return Logger{}, notFoundError{}
}
switch v := v.(type) {
case Logger:
return v, nil
case *slog.Logger:
return FromSlogHandler(v.Handler()), nil
default:
// Not reached.
panic(fmt.Sprintf("unexpected value type for logr context key: %T", v))
}
}
// FromContextAsSlogLogger returns a slog.Logger from ctx or nil if no such Logger is found.
func FromContextAsSlogLogger(ctx context.Context) *slog.Logger {
v := ctx.Value(contextKey{})
if v == nil {
return nil
}
switch v := v.(type) {
case Logger:
return slog.New(ToSlogHandler(v))
case *slog.Logger:
return v
default:
// Not reached.
panic(fmt.Sprintf("unexpected value type for logr context key: %T", v))
}
}
// FromContextOrDiscard returns a Logger from ctx. If no Logger is found, this
// returns a Logger that discards all log messages.
func FromContextOrDiscard(ctx context.Context) Logger {
if logger, err := FromContext(ctx); err == nil {
return logger
}
return Discard()
}
// NewContext returns a new Context, derived from ctx, which carries the
// provided Logger.
func NewContext(ctx context.Context, logger Logger) context.Context {
return context.WithValue(ctx, contextKey{}, logger)
}
// NewContextWithSlogLogger returns a new Context, derived from ctx, which carries the
// provided slog.Logger.
func NewContextWithSlogLogger(ctx context.Context, logger *slog.Logger) context.Context {
return context.WithValue(ctx, contextKey{}, logger)
}

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vendor/github.com/go-logr/logr/discard.go generated vendored Normal file
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/*
Copyright 2020 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
// Discard returns a Logger that discards all messages logged to it. It can be
// used whenever the caller is not interested in the logs. Logger instances
// produced by this function always compare as equal.
func Discard() Logger {
return New(nil)
}

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/*
Copyright 2019 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
// This design derives from Dave Cheney's blog:
// http://dave.cheney.net/2015/11/05/lets-talk-about-logging
// Package logr defines a general-purpose logging API and abstract interfaces
// to back that API. Packages in the Go ecosystem can depend on this package,
// while callers can implement logging with whatever backend is appropriate.
//
// # Usage
//
// Logging is done using a Logger instance. Logger is a concrete type with
// methods, which defers the actual logging to a LogSink interface. The main
// methods of Logger are Info() and Error(). Arguments to Info() and Error()
// are key/value pairs rather than printf-style formatted strings, emphasizing
// "structured logging".
//
// With Go's standard log package, we might write:
//
// log.Printf("setting target value %s", targetValue)
//
// With logr's structured logging, we'd write:
//
// logger.Info("setting target", "value", targetValue)
//
// Errors are much the same. Instead of:
//
// log.Printf("failed to open the pod bay door for user %s: %v", user, err)
//
// We'd write:
//
// logger.Error(err, "failed to open the pod bay door", "user", user)
//
// Info() and Error() are very similar, but they are separate methods so that
// LogSink implementations can choose to do things like attach additional
// information (such as stack traces) on calls to Error(). Error() messages are
// always logged, regardless of the current verbosity. If there is no error
// instance available, passing nil is valid.
//
// # Verbosity
//
// Often we want to log information only when the application in "verbose
// mode". To write log lines that are more verbose, Logger has a V() method.
// The higher the V-level of a log line, the less critical it is considered.
// Log-lines with V-levels that are not enabled (as per the LogSink) will not
// be written. Level V(0) is the default, and logger.V(0).Info() has the same
// meaning as logger.Info(). Negative V-levels have the same meaning as V(0).
// Error messages do not have a verbosity level and are always logged.
//
// Where we might have written:
//
// if flVerbose >= 2 {
// log.Printf("an unusual thing happened")
// }
//
// We can write:
//
// logger.V(2).Info("an unusual thing happened")
//
// # Logger Names
//
// Logger instances can have name strings so that all messages logged through
// that instance have additional context. For example, you might want to add
// a subsystem name:
//
// logger.WithName("compactor").Info("started", "time", time.Now())
//
// The WithName() method returns a new Logger, which can be passed to
// constructors or other functions for further use. Repeated use of WithName()
// will accumulate name "segments". These name segments will be joined in some
// way by the LogSink implementation. It is strongly recommended that name
// segments contain simple identifiers (letters, digits, and hyphen), and do
// not contain characters that could muddle the log output or confuse the
// joining operation (e.g. whitespace, commas, periods, slashes, brackets,
// quotes, etc).
//
// # Saved Values
//
// Logger instances can store any number of key/value pairs, which will be
// logged alongside all messages logged through that instance. For example,
// you might want to create a Logger instance per managed object:
//
// With the standard log package, we might write:
//
// log.Printf("decided to set field foo to value %q for object %s/%s",
// targetValue, object.Namespace, object.Name)
//
// With logr we'd write:
//
// // Elsewhere: set up the logger to log the object name.
// obj.logger = mainLogger.WithValues(
// "name", obj.name, "namespace", obj.namespace)
//
// // later on...
// obj.logger.Info("setting foo", "value", targetValue)
//
// # Best Practices
//
// Logger has very few hard rules, with the goal that LogSink implementations
// might have a lot of freedom to differentiate. There are, however, some
// things to consider.
//
// The log message consists of a constant message attached to the log line.
// This should generally be a simple description of what's occurring, and should
// never be a format string. Variable information can then be attached using
// named values.
//
// Keys are arbitrary strings, but should generally be constant values. Values
// may be any Go value, but how the value is formatted is determined by the
// LogSink implementation.
//
// Logger instances are meant to be passed around by value. Code that receives
// such a value can call its methods without having to check whether the
// instance is ready for use.
//
// The zero logger (= Logger{}) is identical to Discard() and discards all log
// entries. Code that receives a Logger by value can simply call it, the methods
// will never crash. For cases where passing a logger is optional, a pointer to Logger
// should be used.
//
// # Key Naming Conventions
//
// Keys are not strictly required to conform to any specification or regex, but
// it is recommended that they:
// - be human-readable and meaningful (not auto-generated or simple ordinals)
// - be constant (not dependent on input data)
// - contain only printable characters
// - not contain whitespace or punctuation
// - use lower case for simple keys and lowerCamelCase for more complex ones
//
// These guidelines help ensure that log data is processed properly regardless
// of the log implementation. For example, log implementations will try to
// output JSON data or will store data for later database (e.g. SQL) queries.
//
// While users are generally free to use key names of their choice, it's
// generally best to avoid using the following keys, as they're frequently used
// by implementations:
// - "caller": the calling information (file/line) of a particular log line
// - "error": the underlying error value in the `Error` method
// - "level": the log level
// - "logger": the name of the associated logger
// - "msg": the log message
// - "stacktrace": the stack trace associated with a particular log line or
// error (often from the `Error` message)
// - "ts": the timestamp for a log line
//
// Implementations are encouraged to make use of these keys to represent the
// above concepts, when necessary (for example, in a pure-JSON output form, it
// would be necessary to represent at least message and timestamp as ordinary
// named values).
//
// # Break Glass
//
// Implementations may choose to give callers access to the underlying
// logging implementation. The recommended pattern for this is:
//
// // Underlier exposes access to the underlying logging implementation.
// // Since callers only have a logr.Logger, they have to know which
// // implementation is in use, so this interface is less of an abstraction
// // and more of way to test type conversion.
// type Underlier interface {
// GetUnderlying() <underlying-type>
// }
//
// Logger grants access to the sink to enable type assertions like this:
//
// func DoSomethingWithImpl(log logr.Logger) {
// if underlier, ok := log.GetSink().(impl.Underlier); ok {
// implLogger := underlier.GetUnderlying()
// ...
// }
// }
//
// Custom `With*` functions can be implemented by copying the complete
// Logger struct and replacing the sink in the copy:
//
// // WithFooBar changes the foobar parameter in the log sink and returns a
// // new logger with that modified sink. It does nothing for loggers where
// // the sink doesn't support that parameter.
// func WithFoobar(log logr.Logger, foobar int) logr.Logger {
// if foobarLogSink, ok := log.GetSink().(FoobarSink); ok {
// log = log.WithSink(foobarLogSink.WithFooBar(foobar))
// }
// return log
// }
//
// Don't use New to construct a new Logger with a LogSink retrieved from an
// existing Logger. Source code attribution might not work correctly and
// unexported fields in Logger get lost.
//
// Beware that the same LogSink instance may be shared by different logger
// instances. Calling functions that modify the LogSink will affect all of
// those.
package logr
// New returns a new Logger instance. This is primarily used by libraries
// implementing LogSink, rather than end users. Passing a nil sink will create
// a Logger which discards all log lines.
func New(sink LogSink) Logger {
logger := Logger{}
logger.setSink(sink)
if sink != nil {
sink.Init(runtimeInfo)
}
return logger
}
// setSink stores the sink and updates any related fields. It mutates the
// logger and thus is only safe to use for loggers that are not currently being
// used concurrently.
func (l *Logger) setSink(sink LogSink) {
l.sink = sink
}
// GetSink returns the stored sink.
func (l Logger) GetSink() LogSink {
return l.sink
}
// WithSink returns a copy of the logger with the new sink.
func (l Logger) WithSink(sink LogSink) Logger {
l.setSink(sink)
return l
}
// Logger is an interface to an abstract logging implementation. This is a
// concrete type for performance reasons, but all the real work is passed on to
// a LogSink. Implementations of LogSink should provide their own constructors
// that return Logger, not LogSink.
//
// The underlying sink can be accessed through GetSink and be modified through
// WithSink. This enables the implementation of custom extensions (see "Break
// Glass" in the package documentation). Normally the sink should be used only
// indirectly.
type Logger struct {
sink LogSink
level int
}
// Enabled tests whether this Logger is enabled. For example, commandline
// flags might be used to set the logging verbosity and disable some info logs.
func (l Logger) Enabled() bool {
// Some implementations of LogSink look at the caller in Enabled (e.g.
// different verbosity levels per package or file), but we only pass one
// CallDepth in (via Init). This means that all calls from Logger to the
// LogSink's Enabled, Info, and Error methods must have the same number of
// frames. In other words, Logger methods can't call other Logger methods
// which call these LogSink methods unless we do it the same in all paths.
return l.sink != nil && l.sink.Enabled(l.level)
}
// Info logs a non-error message with the given key/value pairs as context.
//
// The msg argument should be used to add some constant description to the log
// line. The key/value pairs can then be used to add additional variable
// information. The key/value pairs must alternate string keys and arbitrary
// values.
func (l Logger) Info(msg string, keysAndValues ...any) {
if l.sink == nil {
return
}
if l.sink.Enabled(l.level) { // see comment in Enabled
if withHelper, ok := l.sink.(CallStackHelperLogSink); ok {
withHelper.GetCallStackHelper()()
}
l.sink.Info(l.level, msg, keysAndValues...)
}
}
// Error logs an error, with the given message and key/value pairs as context.
// It functions similarly to Info, but may have unique behavior, and should be
// preferred for logging errors (see the package documentations for more
// information). The log message will always be emitted, regardless of
// verbosity level.
//
// The msg argument should be used to add context to any underlying error,
// while the err argument should be used to attach the actual error that
// triggered this log line, if present. The err parameter is optional
// and nil may be passed instead of an error instance.
func (l Logger) Error(err error, msg string, keysAndValues ...any) {
if l.sink == nil {
return
}
if withHelper, ok := l.sink.(CallStackHelperLogSink); ok {
withHelper.GetCallStackHelper()()
}
l.sink.Error(err, msg, keysAndValues...)
}
// V returns a new Logger instance for a specific verbosity level, relative to
// this Logger. In other words, V-levels are additive. A higher verbosity
// level means a log message is less important. Negative V-levels are treated
// as 0.
func (l Logger) V(level int) Logger {
if l.sink == nil {
return l
}
if level < 0 {
level = 0
}
l.level += level
return l
}
// GetV returns the verbosity level of the logger. If the logger's LogSink is
// nil as in the Discard logger, this will always return 0.
func (l Logger) GetV() int {
// 0 if l.sink nil because of the if check in V above.
return l.level
}
// WithValues returns a new Logger instance with additional key/value pairs.
// See Info for documentation on how key/value pairs work.
func (l Logger) WithValues(keysAndValues ...any) Logger {
if l.sink == nil {
return l
}
l.setSink(l.sink.WithValues(keysAndValues...))
return l
}
// WithName returns a new Logger instance with the specified name element added
// to the Logger's name. Successive calls with WithName append additional
// suffixes to the Logger's name. It's strongly recommended that name segments
// contain only letters, digits, and hyphens (see the package documentation for
// more information).
func (l Logger) WithName(name string) Logger {
if l.sink == nil {
return l
}
l.setSink(l.sink.WithName(name))
return l
}
// WithCallDepth returns a Logger instance that offsets the call stack by the
// specified number of frames when logging call site information, if possible.
// This is useful for users who have helper functions between the "real" call
// site and the actual calls to Logger methods. If depth is 0 the attribution
// should be to the direct caller of this function. If depth is 1 the
// attribution should skip 1 call frame, and so on. Successive calls to this
// are additive.
//
// If the underlying log implementation supports a WithCallDepth(int) method,
// it will be called and the result returned. If the implementation does not
// support CallDepthLogSink, the original Logger will be returned.
//
// To skip one level, WithCallStackHelper() should be used instead of
// WithCallDepth(1) because it works with implementions that support the
// CallDepthLogSink and/or CallStackHelperLogSink interfaces.
func (l Logger) WithCallDepth(depth int) Logger {
if l.sink == nil {
return l
}
if withCallDepth, ok := l.sink.(CallDepthLogSink); ok {
l.setSink(withCallDepth.WithCallDepth(depth))
}
return l
}
// WithCallStackHelper returns a new Logger instance that skips the direct
// caller when logging call site information, if possible. This is useful for
// users who have helper functions between the "real" call site and the actual
// calls to Logger methods and want to support loggers which depend on marking
// each individual helper function, like loggers based on testing.T.
//
// In addition to using that new logger instance, callers also must call the
// returned function.
//
// If the underlying log implementation supports a WithCallDepth(int) method,
// WithCallDepth(1) will be called to produce a new logger. If it supports a
// WithCallStackHelper() method, that will be also called. If the
// implementation does not support either of these, the original Logger will be
// returned.
func (l Logger) WithCallStackHelper() (func(), Logger) {
if l.sink == nil {
return func() {}, l
}
var helper func()
if withCallDepth, ok := l.sink.(CallDepthLogSink); ok {
l.setSink(withCallDepth.WithCallDepth(1))
}
if withHelper, ok := l.sink.(CallStackHelperLogSink); ok {
helper = withHelper.GetCallStackHelper()
} else {
helper = func() {}
}
return helper, l
}
// IsZero returns true if this logger is an uninitialized zero value
func (l Logger) IsZero() bool {
return l.sink == nil
}
// RuntimeInfo holds information that the logr "core" library knows which
// LogSinks might want to know.
type RuntimeInfo struct {
// CallDepth is the number of call frames the logr library adds between the
// end-user and the LogSink. LogSink implementations which choose to print
// the original logging site (e.g. file & line) should climb this many
// additional frames to find it.
CallDepth int
}
// runtimeInfo is a static global. It must not be changed at run time.
var runtimeInfo = RuntimeInfo{
CallDepth: 1,
}
// LogSink represents a logging implementation. End-users will generally not
// interact with this type.
type LogSink interface {
// Init receives optional information about the logr library for LogSink
// implementations that need it.
Init(info RuntimeInfo)
// Enabled tests whether this LogSink is enabled at the specified V-level.
// For example, commandline flags might be used to set the logging
// verbosity and disable some info logs.
Enabled(level int) bool
// Info logs a non-error message with the given key/value pairs as context.
// The level argument is provided for optional logging. This method will
// only be called when Enabled(level) is true. See Logger.Info for more
// details.
Info(level int, msg string, keysAndValues ...any)
// Error logs an error, with the given message and key/value pairs as
// context. See Logger.Error for more details.
Error(err error, msg string, keysAndValues ...any)
// WithValues returns a new LogSink with additional key/value pairs. See
// Logger.WithValues for more details.
WithValues(keysAndValues ...any) LogSink
// WithName returns a new LogSink with the specified name appended. See
// Logger.WithName for more details.
WithName(name string) LogSink
}
// CallDepthLogSink represents a LogSink that knows how to climb the call stack
// to identify the original call site and can offset the depth by a specified
// number of frames. This is useful for users who have helper functions
// between the "real" call site and the actual calls to Logger methods.
// Implementations that log information about the call site (such as file,
// function, or line) would otherwise log information about the intermediate
// helper functions.
//
// This is an optional interface and implementations are not required to
// support it.
type CallDepthLogSink interface {
// WithCallDepth returns a LogSink that will offset the call
// stack by the specified number of frames when logging call
// site information.
//
// If depth is 0, the LogSink should skip exactly the number
// of call frames defined in RuntimeInfo.CallDepth when Info
// or Error are called, i.e. the attribution should be to the
// direct caller of Logger.Info or Logger.Error.
//
// If depth is 1 the attribution should skip 1 call frame, and so on.
// Successive calls to this are additive.
WithCallDepth(depth int) LogSink
}
// CallStackHelperLogSink represents a LogSink that knows how to climb
// the call stack to identify the original call site and can skip
// intermediate helper functions if they mark themselves as
// helper. Go's testing package uses that approach.
//
// This is useful for users who have helper functions between the
// "real" call site and the actual calls to Logger methods.
// Implementations that log information about the call site (such as
// file, function, or line) would otherwise log information about the
// intermediate helper functions.
//
// This is an optional interface and implementations are not required
// to support it. Implementations that choose to support this must not
// simply implement it as WithCallDepth(1), because
// Logger.WithCallStackHelper will call both methods if they are
// present. This should only be implemented for LogSinks that actually
// need it, as with testing.T.
type CallStackHelperLogSink interface {
// GetCallStackHelper returns a function that must be called
// to mark the direct caller as helper function when logging
// call site information.
GetCallStackHelper() func()
}
// Marshaler is an optional interface that logged values may choose to
// implement. Loggers with structured output, such as JSON, should
// log the object return by the MarshalLog method instead of the
// original value.
type Marshaler interface {
// MarshalLog can be used to:
// - ensure that structs are not logged as strings when the original
// value has a String method: return a different type without a
// String method
// - select which fields of a complex type should get logged:
// return a simpler struct with fewer fields
// - log unexported fields: return a different struct
// with exported fields
//
// It may return any value of any type.
MarshalLog() any
}

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//go:build go1.21
// +build go1.21
/*
Copyright 2023 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
import (
"context"
"log/slog"
)
type slogHandler struct {
// May be nil, in which case all logs get discarded.
sink LogSink
// Non-nil if sink is non-nil and implements SlogSink.
slogSink SlogSink
// groupPrefix collects values from WithGroup calls. It gets added as
// prefix to value keys when handling a log record.
groupPrefix string
// levelBias can be set when constructing the handler to influence the
// slog.Level of log records. A positive levelBias reduces the
// slog.Level value. slog has no API to influence this value after the
// handler got created, so it can only be set indirectly through
// Logger.V.
levelBias slog.Level
}
var _ slog.Handler = &slogHandler{}
// groupSeparator is used to concatenate WithGroup names and attribute keys.
const groupSeparator = "."
// GetLevel is used for black box unit testing.
func (l *slogHandler) GetLevel() slog.Level {
return l.levelBias
}
func (l *slogHandler) Enabled(_ context.Context, level slog.Level) bool {
return l.sink != nil && (level >= slog.LevelError || l.sink.Enabled(l.levelFromSlog(level)))
}
func (l *slogHandler) Handle(ctx context.Context, record slog.Record) error {
if l.slogSink != nil {
// Only adjust verbosity level of log entries < slog.LevelError.
if record.Level < slog.LevelError {
record.Level -= l.levelBias
}
return l.slogSink.Handle(ctx, record)
}
// No need to check for nil sink here because Handle will only be called
// when Enabled returned true.
kvList := make([]any, 0, 2*record.NumAttrs())
record.Attrs(func(attr slog.Attr) bool {
kvList = attrToKVs(attr, l.groupPrefix, kvList)
return true
})
if record.Level >= slog.LevelError {
l.sinkWithCallDepth().Error(nil, record.Message, kvList...)
} else {
level := l.levelFromSlog(record.Level)
l.sinkWithCallDepth().Info(level, record.Message, kvList...)
}
return nil
}
// sinkWithCallDepth adjusts the stack unwinding so that when Error or Info
// are called by Handle, code in slog gets skipped.
//
// This offset currently (Go 1.21.0) works for calls through
// slog.New(ToSlogHandler(...)). There's no guarantee that the call
// chain won't change. Wrapping the handler will also break unwinding. It's
// still better than not adjusting at all....
//
// This cannot be done when constructing the handler because FromSlogHandler needs
// access to the original sink without this adjustment. A second copy would
// work, but then WithAttrs would have to be called for both of them.
func (l *slogHandler) sinkWithCallDepth() LogSink {
if sink, ok := l.sink.(CallDepthLogSink); ok {
return sink.WithCallDepth(2)
}
return l.sink
}
func (l *slogHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
if l.sink == nil || len(attrs) == 0 {
return l
}
clone := *l
if l.slogSink != nil {
clone.slogSink = l.slogSink.WithAttrs(attrs)
clone.sink = clone.slogSink
} else {
kvList := make([]any, 0, 2*len(attrs))
for _, attr := range attrs {
kvList = attrToKVs(attr, l.groupPrefix, kvList)
}
clone.sink = l.sink.WithValues(kvList...)
}
return &clone
}
func (l *slogHandler) WithGroup(name string) slog.Handler {
if l.sink == nil {
return l
}
if name == "" {
// slog says to inline empty groups
return l
}
clone := *l
if l.slogSink != nil {
clone.slogSink = l.slogSink.WithGroup(name)
clone.sink = clone.slogSink
} else {
clone.groupPrefix = addPrefix(clone.groupPrefix, name)
}
return &clone
}
// attrToKVs appends a slog.Attr to a logr-style kvList. It handle slog Groups
// and other details of slog.
func attrToKVs(attr slog.Attr, groupPrefix string, kvList []any) []any {
attrVal := attr.Value.Resolve()
if attrVal.Kind() == slog.KindGroup {
groupVal := attrVal.Group()
grpKVs := make([]any, 0, 2*len(groupVal))
prefix := groupPrefix
if attr.Key != "" {
prefix = addPrefix(groupPrefix, attr.Key)
}
for _, attr := range groupVal {
grpKVs = attrToKVs(attr, prefix, grpKVs)
}
kvList = append(kvList, grpKVs...)
} else if attr.Key != "" {
kvList = append(kvList, addPrefix(groupPrefix, attr.Key), attrVal.Any())
}
return kvList
}
func addPrefix(prefix, name string) string {
if prefix == "" {
return name
}
if name == "" {
return prefix
}
return prefix + groupSeparator + name
}
// levelFromSlog adjusts the level by the logger's verbosity and negates it.
// It ensures that the result is >= 0. This is necessary because the result is
// passed to a LogSink and that API did not historically document whether
// levels could be negative or what that meant.
//
// Some example usage:
//
// logrV0 := getMyLogger()
// logrV2 := logrV0.V(2)
// slogV2 := slog.New(logr.ToSlogHandler(logrV2))
// slogV2.Debug("msg") // =~ logrV2.V(4) =~ logrV0.V(6)
// slogV2.Info("msg") // =~ logrV2.V(0) =~ logrV0.V(2)
// slogv2.Warn("msg") // =~ logrV2.V(-4) =~ logrV0.V(0)
func (l *slogHandler) levelFromSlog(level slog.Level) int {
result := -level
result += l.levelBias // in case the original Logger had a V level
if result < 0 {
result = 0 // because LogSink doesn't expect negative V levels
}
return int(result)
}

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//go:build go1.21
// +build go1.21
/*
Copyright 2023 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
import (
"context"
"log/slog"
)
// FromSlogHandler returns a Logger which writes to the slog.Handler.
//
// The logr verbosity level is mapped to slog levels such that V(0) becomes
// slog.LevelInfo and V(4) becomes slog.LevelDebug.
func FromSlogHandler(handler slog.Handler) Logger {
if handler, ok := handler.(*slogHandler); ok {
if handler.sink == nil {
return Discard()
}
return New(handler.sink).V(int(handler.levelBias))
}
return New(&slogSink{handler: handler})
}
// ToSlogHandler returns a slog.Handler which writes to the same sink as the Logger.
//
// The returned logger writes all records with level >= slog.LevelError as
// error log entries with LogSink.Error, regardless of the verbosity level of
// the Logger:
//
// logger := <some Logger with 0 as verbosity level>
// slog.New(ToSlogHandler(logger.V(10))).Error(...) -> logSink.Error(...)
//
// The level of all other records gets reduced by the verbosity
// level of the Logger and the result is negated. If it happens
// to be negative, then it gets replaced by zero because a LogSink
// is not expected to handled negative levels:
//
// slog.New(ToSlogHandler(logger)).Debug(...) -> logger.GetSink().Info(level=4, ...)
// slog.New(ToSlogHandler(logger)).Warning(...) -> logger.GetSink().Info(level=0, ...)
// slog.New(ToSlogHandler(logger)).Info(...) -> logger.GetSink().Info(level=0, ...)
// slog.New(ToSlogHandler(logger.V(4))).Info(...) -> logger.GetSink().Info(level=4, ...)
func ToSlogHandler(logger Logger) slog.Handler {
if sink, ok := logger.GetSink().(*slogSink); ok && logger.GetV() == 0 {
return sink.handler
}
handler := &slogHandler{sink: logger.GetSink(), levelBias: slog.Level(logger.GetV())}
if slogSink, ok := handler.sink.(SlogSink); ok {
handler.slogSink = slogSink
}
return handler
}
// SlogSink is an optional interface that a LogSink can implement to support
// logging through the slog.Logger or slog.Handler APIs better. It then should
// also support special slog values like slog.Group. When used as a
// slog.Handler, the advantages are:
//
// - stack unwinding gets avoided in favor of logging the pre-recorded PC,
// as intended by slog
// - proper grouping of key/value pairs via WithGroup
// - verbosity levels > slog.LevelInfo can be recorded
// - less overhead
//
// Both APIs (Logger and slog.Logger/Handler) then are supported equally
// well. Developers can pick whatever API suits them better and/or mix
// packages which use either API in the same binary with a common logging
// implementation.
//
// This interface is necessary because the type implementing the LogSink
// interface cannot also implement the slog.Handler interface due to the
// different prototype of the common Enabled method.
//
// An implementation could support both interfaces in two different types, but then
// additional interfaces would be needed to convert between those types in FromSlogHandler
// and ToSlogHandler.
type SlogSink interface {
LogSink
Handle(ctx context.Context, record slog.Record) error
WithAttrs(attrs []slog.Attr) SlogSink
WithGroup(name string) SlogSink
}

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//go:build go1.21
// +build go1.21
/*
Copyright 2023 The logr Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package logr
import (
"context"
"log/slog"
"runtime"
"time"
)
var (
_ LogSink = &slogSink{}
_ CallDepthLogSink = &slogSink{}
_ Underlier = &slogSink{}
)
// Underlier is implemented by the LogSink returned by NewFromLogHandler.
type Underlier interface {
// GetUnderlying returns the Handler used by the LogSink.
GetUnderlying() slog.Handler
}
const (
// nameKey is used to log the `WithName` values as an additional attribute.
nameKey = "logger"
// errKey is used to log the error parameter of Error as an additional attribute.
errKey = "err"
)
type slogSink struct {
callDepth int
name string
handler slog.Handler
}
func (l *slogSink) Init(info RuntimeInfo) {
l.callDepth = info.CallDepth
}
func (l *slogSink) GetUnderlying() slog.Handler {
return l.handler
}
func (l *slogSink) WithCallDepth(depth int) LogSink {
newLogger := *l
newLogger.callDepth += depth
return &newLogger
}
func (l *slogSink) Enabled(level int) bool {
return l.handler.Enabled(context.Background(), slog.Level(-level))
}
func (l *slogSink) Info(level int, msg string, kvList ...interface{}) {
l.log(nil, msg, slog.Level(-level), kvList...)
}
func (l *slogSink) Error(err error, msg string, kvList ...interface{}) {
l.log(err, msg, slog.LevelError, kvList...)
}
func (l *slogSink) log(err error, msg string, level slog.Level, kvList ...interface{}) {
var pcs [1]uintptr
// skip runtime.Callers, this function, Info/Error, and all helper functions above that.
runtime.Callers(3+l.callDepth, pcs[:])
record := slog.NewRecord(time.Now(), level, msg, pcs[0])
if l.name != "" {
record.AddAttrs(slog.String(nameKey, l.name))
}
if err != nil {
record.AddAttrs(slog.Any(errKey, err))
}
record.Add(kvList...)
_ = l.handler.Handle(context.Background(), record)
}
func (l slogSink) WithName(name string) LogSink {
if l.name != "" {
l.name += "/"
}
l.name += name
return &l
}
func (l slogSink) WithValues(kvList ...interface{}) LogSink {
l.handler = l.handler.WithAttrs(kvListToAttrs(kvList...))
return &l
}
func kvListToAttrs(kvList ...interface{}) []slog.Attr {
// We don't need the record itself, only its Add method.
record := slog.NewRecord(time.Time{}, 0, "", 0)
record.Add(kvList...)
attrs := make([]slog.Attr, 0, record.NumAttrs())
record.Attrs(func(attr slog.Attr) bool {
attrs = append(attrs, attr)
return true
})
return attrs
}

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Copyright 2009 The Go Authors.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google LLC nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

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_obj/
unix.test

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# Building `sys/unix`
The sys/unix package provides access to the raw system call interface of the
underlying operating system. See: https://godoc.org/golang.org/x/sys/unix
Porting Go to a new architecture/OS combination or adding syscalls, types, or
constants to an existing architecture/OS pair requires some manual effort;
however, there are tools that automate much of the process.
## Build Systems
There are currently two ways we generate the necessary files. We are currently
migrating the build system to use containers so the builds are reproducible.
This is being done on an OS-by-OS basis. Please update this documentation as
components of the build system change.
### Old Build System (currently for `GOOS != "linux"`)
The old build system generates the Go files based on the C header files
present on your system. This means that files
for a given GOOS/GOARCH pair must be generated on a system with that OS and
architecture. This also means that the generated code can differ from system
to system, based on differences in the header files.
To avoid this, if you are using the old build system, only generate the Go
files on an installation with unmodified header files. It is also important to
keep track of which version of the OS the files were generated from (ex.
Darwin 14 vs Darwin 15). This makes it easier to track the progress of changes
and have each OS upgrade correspond to a single change.
To build the files for your current OS and architecture, make sure GOOS and
GOARCH are set correctly and run `mkall.sh`. This will generate the files for
your specific system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, go
### New Build System (currently for `GOOS == "linux"`)
The new build system uses a Docker container to generate the go files directly
from source checkouts of the kernel and various system libraries. This means
that on any platform that supports Docker, all the files using the new build
system can be generated at once, and generated files will not change based on
what the person running the scripts has installed on their computer.
The OS specific files for the new build system are located in the `${GOOS}`
directory, and the build is coordinated by the `${GOOS}/mkall.go` program. When
the kernel or system library updates, modify the Dockerfile at
`${GOOS}/Dockerfile` to checkout the new release of the source.
To build all the files under the new build system, you must be on an amd64/Linux
system and have your GOOS and GOARCH set accordingly. Running `mkall.sh` will
then generate all of the files for all of the GOOS/GOARCH pairs in the new build
system. Running `mkall.sh -n` shows the commands that will be run.
Requirements: bash, go, docker
## Component files
This section describes the various files used in the code generation process.
It also contains instructions on how to modify these files to add a new
architecture/OS or to add additional syscalls, types, or constants. Note that
if you are using the new build system, the scripts/programs cannot be called normally.
They must be called from within the docker container.
### asm files
The hand-written assembly file at `asm_${GOOS}_${GOARCH}.s` implements system
call dispatch. There are three entry points:
```
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
```
The first and second are the standard ones; they differ only in how many
arguments can be passed to the kernel. The third is for low-level use by the
ForkExec wrapper. Unlike the first two, it does not call into the scheduler to
let it know that a system call is running.
When porting Go to a new architecture/OS, this file must be implemented for
each GOOS/GOARCH pair.
### mksysnum
Mksysnum is a Go program located at `${GOOS}/mksysnum.go` (or `mksysnum_${GOOS}.go`
for the old system). This program takes in a list of header files containing the
syscall number declarations and parses them to produce the corresponding list of
Go numeric constants. See `zsysnum_${GOOS}_${GOARCH}.go` for the generated
constants.
Adding new syscall numbers is mostly done by running the build on a sufficiently
new installation of the target OS (or updating the source checkouts for the
new build system). However, depending on the OS, you may need to update the
parsing in mksysnum.
### mksyscall.go
The `syscall.go`, `syscall_${GOOS}.go`, `syscall_${GOOS}_${GOARCH}.go` are
hand-written Go files which implement system calls (for unix, the specific OS,
or the specific OS/Architecture pair respectively) that need special handling
and list `//sys` comments giving prototypes for ones that can be generated.
The mksyscall.go program takes the `//sys` and `//sysnb` comments and converts
them into syscalls. This requires the name of the prototype in the comment to
match a syscall number in the `zsysnum_${GOOS}_${GOARCH}.go` file. The function
prototype can be exported (capitalized) or not.
Adding a new syscall often just requires adding a new `//sys` function prototype
with the desired arguments and a capitalized name so it is exported. However, if
you want the interface to the syscall to be different, often one will make an
unexported `//sys` prototype, and then write a custom wrapper in
`syscall_${GOOS}.go`.
### types files
For each OS, there is a hand-written Go file at `${GOOS}/types.go` (or
`types_${GOOS}.go` on the old system). This file includes standard C headers and
creates Go type aliases to the corresponding C types. The file is then fed
through godef to get the Go compatible definitions. Finally, the generated code
is fed though mkpost.go to format the code correctly and remove any hidden or
private identifiers. This cleaned-up code is written to
`ztypes_${GOOS}_${GOARCH}.go`.
The hardest part about preparing this file is figuring out which headers to
include and which symbols need to be `#define`d to get the actual data
structures that pass through to the kernel system calls. Some C libraries
preset alternate versions for binary compatibility and translate them on the
way in and out of system calls, but there is almost always a `#define` that can
get the real ones.
See `types_darwin.go` and `linux/types.go` for examples.
To add a new type, add in the necessary include statement at the top of the
file (if it is not already there) and add in a type alias line. Note that if
your type is significantly different on different architectures, you may need
some `#if/#elif` macros in your include statements.
### mkerrors.sh
This script is used to generate the system's various constants. This doesn't
just include the error numbers and error strings, but also the signal numbers
and a wide variety of miscellaneous constants. The constants come from the list
of include files in the `includes_${uname}` variable. A regex then picks out
the desired `#define` statements, and generates the corresponding Go constants.
The error numbers and strings are generated from `#include <errno.h>`, and the
signal numbers and strings are generated from `#include <signal.h>`. All of
these constants are written to `zerrors_${GOOS}_${GOARCH}.go` via a C program,
`_errors.c`, which prints out all the constants.
To add a constant, add the header that includes it to the appropriate variable.
Then, edit the regex (if necessary) to match the desired constant. Avoid making
the regex too broad to avoid matching unintended constants.
### internal/mkmerge
This program is used to extract duplicate const, func, and type declarations
from the generated architecture-specific files listed below, and merge these
into a common file for each OS.
The merge is performed in the following steps:
1. Construct the set of common code that is idential in all architecture-specific files.
2. Write this common code to the merged file.
3. Remove the common code from all architecture-specific files.
## Generated files
### `zerrors_${GOOS}_${GOARCH}.go`
A file containing all of the system's generated error numbers, error strings,
signal numbers, and constants. Generated by `mkerrors.sh` (see above).
### `zsyscall_${GOOS}_${GOARCH}.go`
A file containing all the generated syscalls for a specific GOOS and GOARCH.
Generated by `mksyscall.go` (see above).
### `zsysnum_${GOOS}_${GOARCH}.go`
A list of numeric constants for all the syscall number of the specific GOOS
and GOARCH. Generated by mksysnum (see above).
### `ztypes_${GOOS}_${GOARCH}.go`
A file containing Go types for passing into (or returning from) syscalls.
Generated by godefs and the types file (see above).

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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// CPU affinity functions
package unix
import (
"math/bits"
"unsafe"
)
const cpuSetSize = _CPU_SETSIZE / _NCPUBITS
// CPUSet represents a CPU affinity mask.
type CPUSet [cpuSetSize]cpuMask
func schedAffinity(trap uintptr, pid int, set *CPUSet) error {
_, _, e := RawSyscall(trap, uintptr(pid), uintptr(unsafe.Sizeof(*set)), uintptr(unsafe.Pointer(set)))
if e != 0 {
return errnoErr(e)
}
return nil
}
// SchedGetaffinity gets the CPU affinity mask of the thread specified by pid.
// If pid is 0 the calling thread is used.
func SchedGetaffinity(pid int, set *CPUSet) error {
return schedAffinity(SYS_SCHED_GETAFFINITY, pid, set)
}
// SchedSetaffinity sets the CPU affinity mask of the thread specified by pid.
// If pid is 0 the calling thread is used.
func SchedSetaffinity(pid int, set *CPUSet) error {
return schedAffinity(SYS_SCHED_SETAFFINITY, pid, set)
}
// Zero clears the set s, so that it contains no CPUs.
func (s *CPUSet) Zero() {
for i := range s {
s[i] = 0
}
}
func cpuBitsIndex(cpu int) int {
return cpu / _NCPUBITS
}
func cpuBitsMask(cpu int) cpuMask {
return cpuMask(1 << (uint(cpu) % _NCPUBITS))
}
// Set adds cpu to the set s.
func (s *CPUSet) Set(cpu int) {
i := cpuBitsIndex(cpu)
if i < len(s) {
s[i] |= cpuBitsMask(cpu)
}
}
// Clear removes cpu from the set s.
func (s *CPUSet) Clear(cpu int) {
i := cpuBitsIndex(cpu)
if i < len(s) {
s[i] &^= cpuBitsMask(cpu)
}
}
// IsSet reports whether cpu is in the set s.
func (s *CPUSet) IsSet(cpu int) bool {
i := cpuBitsIndex(cpu)
if i < len(s) {
return s[i]&cpuBitsMask(cpu) != 0
}
return false
}
// Count returns the number of CPUs in the set s.
func (s *CPUSet) Count() int {
c := 0
for _, b := range s {
c += bits.OnesCount64(uint64(b))
}
return c
}

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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
package unix
import "syscall"
type Signal = syscall.Signal
type Errno = syscall.Errno
type SysProcAttr = syscall.SysProcAttr

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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gc
#include "textflag.h"
//
// System calls for ppc64, AIX are implemented in runtime/syscall_aix.go
//
TEXT ·syscall6(SB),NOSPLIT,$0-88
JMP syscall·syscall6(SB)
TEXT ·rawSyscall6(SB),NOSPLIT,$0-88
JMP syscall·rawSyscall6(SB)

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (freebsd || netbsd || openbsd) && gc
#include "textflag.h"
// System call support for 386 BSD
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc
#include "textflag.h"
// System call support for AMD64 BSD
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (freebsd || netbsd || openbsd) && gc
#include "textflag.h"
// System call support for ARM BSD
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
B syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (darwin || freebsd || netbsd || openbsd) && gc
#include "textflag.h"
// System call support for ARM64 BSD
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

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// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (darwin || freebsd || netbsd || openbsd) && gc
#include "textflag.h"
//
// System call support for ppc64, BSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (darwin || freebsd || netbsd || openbsd) && gc
#include "textflag.h"
// System call support for RISCV64 BSD
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

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vendor/golang.org/x/sys/unix/asm_linux_386.s generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gc
#include "textflag.h"
//
// System calls for 386, Linux
//
// See ../runtime/sys_linux_386.s for the reason why we always use int 0x80
// instead of the glibc-specific "CALL 0x10(GS)".
#define INVOKE_SYSCALL INT $0x80
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
CALL runtime·entersyscall(SB)
MOVL trap+0(FP), AX // syscall entry
MOVL a1+4(FP), BX
MOVL a2+8(FP), CX
MOVL a3+12(FP), DX
MOVL $0, SI
MOVL $0, DI
INVOKE_SYSCALL
MOVL AX, r1+16(FP)
MOVL DX, r2+20(FP)
CALL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
MOVL trap+0(FP), AX // syscall entry
MOVL a1+4(FP), BX
MOVL a2+8(FP), CX
MOVL a3+12(FP), DX
MOVL $0, SI
MOVL $0, DI
INVOKE_SYSCALL
MOVL AX, r1+16(FP)
MOVL DX, r2+20(FP)
RET
TEXT ·socketcall(SB),NOSPLIT,$0-36
JMP syscall·socketcall(SB)
TEXT ·rawsocketcall(SB),NOSPLIT,$0-36
JMP syscall·rawsocketcall(SB)
TEXT ·seek(SB),NOSPLIT,$0-28
JMP syscall·seek(SB)

57
vendor/golang.org/x/sys/unix/asm_linux_amd64.s generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gc
#include "textflag.h"
//
// System calls for AMD64, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
CALL runtime·entersyscall(SB)
MOVQ a1+8(FP), DI
MOVQ a2+16(FP), SI
MOVQ a3+24(FP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ trap+0(FP), AX // syscall entry
SYSCALL
MOVQ AX, r1+32(FP)
MOVQ DX, r2+40(FP)
CALL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVQ a1+8(FP), DI
MOVQ a2+16(FP), SI
MOVQ a3+24(FP), DX
MOVQ $0, R10
MOVQ $0, R8
MOVQ $0, R9
MOVQ trap+0(FP), AX // syscall entry
SYSCALL
MOVQ AX, r1+32(FP)
MOVQ DX, r2+40(FP)
RET
TEXT ·gettimeofday(SB),NOSPLIT,$0-16
JMP syscall·gettimeofday(SB)

56
vendor/golang.org/x/sys/unix/asm_linux_arm.s generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gc
#include "textflag.h"
//
// System calls for arm, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
B syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
BL runtime·entersyscall(SB)
MOVW trap+0(FP), R7
MOVW a1+4(FP), R0
MOVW a2+8(FP), R1
MOVW a3+12(FP), R2
MOVW $0, R3
MOVW $0, R4
MOVW $0, R5
SWI $0
MOVW R0, r1+16(FP)
MOVW $0, R0
MOVW R0, r2+20(FP)
BL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
B syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
MOVW trap+0(FP), R7 // syscall entry
MOVW a1+4(FP), R0
MOVW a2+8(FP), R1
MOVW a3+12(FP), R2
SWI $0
MOVW R0, r1+16(FP)
MOVW $0, R0
MOVW R0, r2+20(FP)
RET
TEXT ·seek(SB),NOSPLIT,$0-28
B syscall·seek(SB)

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vendor/golang.org/x/sys/unix/asm_linux_arm64.s generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && arm64 && gc
#include "textflag.h"
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
B syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
B syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
BL runtime·entersyscall(SB)
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
MOVD R0, r1+32(FP) // r1
MOVD R1, r2+40(FP) // r2
BL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
B syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
B syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R0
MOVD a2+16(FP), R1
MOVD a3+24(FP), R2
MOVD $0, R3
MOVD $0, R4
MOVD $0, R5
MOVD trap+0(FP), R8 // syscall entry
SVC
MOVD R0, r1+32(FP)
MOVD R1, r2+40(FP)
RET

51
vendor/golang.org/x/sys/unix/asm_linux_loong64.s generated vendored Normal file
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// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && loong64 && gc
#include "textflag.h"
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
JAL runtime·entersyscall(SB)
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R11 // syscall entry
SYSCALL
MOVV R4, r1+32(FP)
MOVV R0, r2+40(FP) // r2 is not used. Always set to 0
JAL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R11 // syscall entry
SYSCALL
MOVV R4, r1+32(FP)
MOVV R0, r2+40(FP) // r2 is not used. Always set to 0
RET

54
vendor/golang.org/x/sys/unix/asm_linux_mips64x.s generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && (mips64 || mips64le) && gc
#include "textflag.h"
//
// System calls for mips64, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
JAL runtime·entersyscall(SB)
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R2 // syscall entry
SYSCALL
MOVV R2, r1+32(FP)
MOVV R3, r2+40(FP)
JAL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVV a1+8(FP), R4
MOVV a2+16(FP), R5
MOVV a3+24(FP), R6
MOVV R0, R7
MOVV R0, R8
MOVV R0, R9
MOVV trap+0(FP), R2 // syscall entry
SYSCALL
MOVV R2, r1+32(FP)
MOVV R3, r2+40(FP)
RET

52
vendor/golang.org/x/sys/unix/asm_linux_mipsx.s generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && (mips || mipsle) && gc
#include "textflag.h"
//
// System calls for mips, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-28
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-40
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-52
JMP syscall·Syscall9(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-24
JAL runtime·entersyscall(SB)
MOVW a1+4(FP), R4
MOVW a2+8(FP), R5
MOVW a3+12(FP), R6
MOVW R0, R7
MOVW trap+0(FP), R2 // syscall entry
SYSCALL
MOVW R2, r1+16(FP) // r1
MOVW R3, r2+20(FP) // r2
JAL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-28
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-40
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-24
MOVW a1+4(FP), R4
MOVW a2+8(FP), R5
MOVW a3+12(FP), R6
MOVW trap+0(FP), R2 // syscall entry
SYSCALL
MOVW R2, r1+16(FP)
MOVW R3, r2+20(FP)
RET

42
vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && (ppc64 || ppc64le) && gc
#include "textflag.h"
//
// System calls for ppc64, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
BL runtime·entersyscall(SB)
MOVD a1+8(FP), R3
MOVD a2+16(FP), R4
MOVD a3+24(FP), R5
MOVD R0, R6
MOVD R0, R7
MOVD R0, R8
MOVD trap+0(FP), R9 // syscall entry
SYSCALL R9
MOVD R3, r1+32(FP)
MOVD R4, r2+40(FP)
BL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R3
MOVD a2+16(FP), R4
MOVD a3+24(FP), R5
MOVD R0, R6
MOVD R0, R7
MOVD R0, R8
MOVD trap+0(FP), R9 // syscall entry
SYSCALL R9
MOVD R3, r1+32(FP)
MOVD R4, r2+40(FP)
RET

47
vendor/golang.org/x/sys/unix/asm_linux_riscv64.s generated vendored Normal file
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build riscv64 && gc
#include "textflag.h"
//
// System calls for linux/riscv64.
//
// Where available, just jump to package syscall's implementation of
// these functions.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
CALL runtime·entersyscall(SB)
MOV a1+8(FP), A0
MOV a2+16(FP), A1
MOV a3+24(FP), A2
MOV trap+0(FP), A7 // syscall entry
ECALL
MOV A0, r1+32(FP) // r1
MOV A1, r2+40(FP) // r2
CALL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOV a1+8(FP), A0
MOV a2+16(FP), A1
MOV a3+24(FP), A2
MOV trap+0(FP), A7 // syscall entry
ECALL
MOV A0, r1+32(FP)
MOV A1, r2+40(FP)
RET

54
vendor/golang.org/x/sys/unix/asm_linux_s390x.s generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux && s390x && gc
#include "textflag.h"
//
// System calls for s390x, Linux
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
BR syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
BR syscall·Syscall6(SB)
TEXT ·SyscallNoError(SB),NOSPLIT,$0-48
BL runtime·entersyscall(SB)
MOVD a1+8(FP), R2
MOVD a2+16(FP), R3
MOVD a3+24(FP), R4
MOVD $0, R5
MOVD $0, R6
MOVD $0, R7
MOVD trap+0(FP), R1 // syscall entry
SYSCALL
MOVD R2, r1+32(FP)
MOVD R3, r2+40(FP)
BL runtime·exitsyscall(SB)
RET
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
BR syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
BR syscall·RawSyscall6(SB)
TEXT ·RawSyscallNoError(SB),NOSPLIT,$0-48
MOVD a1+8(FP), R2
MOVD a2+16(FP), R3
MOVD a3+24(FP), R4
MOVD $0, R5
MOVD $0, R6
MOVD $0, R7
MOVD trap+0(FP), R1 // syscall entry
SYSCALL
MOVD R2, r1+32(FP)
MOVD R3, r2+40(FP)
RET

29
vendor/golang.org/x/sys/unix/asm_openbsd_mips64.s generated vendored Normal file
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gc
#include "textflag.h"
//
// System call support for mips64, OpenBSD
//
// Just jump to package syscall's implementation for all these functions.
// The runtime may know about them.
TEXT ·Syscall(SB),NOSPLIT,$0-56
JMP syscall·Syscall(SB)
TEXT ·Syscall6(SB),NOSPLIT,$0-80
JMP syscall·Syscall6(SB)
TEXT ·Syscall9(SB),NOSPLIT,$0-104
JMP syscall·Syscall9(SB)
TEXT ·RawSyscall(SB),NOSPLIT,$0-56
JMP syscall·RawSyscall(SB)
TEXT ·RawSyscall6(SB),NOSPLIT,$0-80
JMP syscall·RawSyscall6(SB)

17
vendor/golang.org/x/sys/unix/asm_solaris_amd64.s generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gc
#include "textflag.h"
//
// System calls for amd64, Solaris are implemented in runtime/syscall_solaris.go
//
TEXT ·sysvicall6(SB),NOSPLIT,$0-88
JMP syscall·sysvicall6(SB)
TEXT ·rawSysvicall6(SB),NOSPLIT,$0-88
JMP syscall·rawSysvicall6(SB)

382
vendor/golang.org/x/sys/unix/asm_zos_s390x.s generated vendored Normal file
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build zos && s390x && gc
#include "textflag.h"
#define PSALAA 1208(R0)
#define GTAB64(x) 80(x)
#define LCA64(x) 88(x)
#define SAVSTACK_ASYNC(x) 336(x) // in the LCA
#define CAA(x) 8(x)
#define CEECAATHDID(x) 976(x) // in the CAA
#define EDCHPXV(x) 1016(x) // in the CAA
#define GOCB(x) 1104(x) // in the CAA
// SS_*, where x=SAVSTACK_ASYNC
#define SS_LE(x) 0(x)
#define SS_GO(x) 8(x)
#define SS_ERRNO(x) 16(x)
#define SS_ERRNOJR(x) 20(x)
// Function Descriptor Offsets
#define __errno 0x156*16
#define __err2ad 0x16C*16
// Call Instructions
#define LE_CALL BYTE $0x0D; BYTE $0x76 // BL R7, R6
#define SVC_LOAD BYTE $0x0A; BYTE $0x08 // SVC 08 LOAD
#define SVC_DELETE BYTE $0x0A; BYTE $0x09 // SVC 09 DELETE
DATA zosLibVec<>(SB)/8, $0
GLOBL zosLibVec<>(SB), NOPTR, $8
TEXT ·initZosLibVec(SB), NOSPLIT|NOFRAME, $0-0
MOVW PSALAA, R8
MOVD LCA64(R8), R8
MOVD CAA(R8), R8
MOVD EDCHPXV(R8), R8
MOVD R8, zosLibVec<>(SB)
RET
TEXT ·GetZosLibVec(SB), NOSPLIT|NOFRAME, $0-0
MOVD zosLibVec<>(SB), R8
MOVD R8, ret+0(FP)
RET
TEXT ·clearErrno(SB), NOSPLIT, $0-0
BL addrerrno<>(SB)
MOVD $0, 0(R3)
RET
// Returns the address of errno in R3.
TEXT addrerrno<>(SB), NOSPLIT|NOFRAME, $0-0
// Get library control area (LCA).
MOVW PSALAA, R8
MOVD LCA64(R8), R8
// Get __errno FuncDesc.
MOVD CAA(R8), R9
MOVD EDCHPXV(R9), R9
ADD $(__errno), R9
LMG 0(R9), R5, R6
// Switch to saved LE stack.
MOVD SAVSTACK_ASYNC(R8), R9
MOVD 0(R9), R4
MOVD $0, 0(R9)
// Call __errno function.
LE_CALL
NOPH
// Switch back to Go stack.
XOR R0, R0 // Restore R0 to $0.
MOVD R4, 0(R9) // Save stack pointer.
RET
// func svcCall(fnptr unsafe.Pointer, argv *unsafe.Pointer, dsa *uint64)
TEXT ·svcCall(SB), NOSPLIT, $0
BL runtime·save_g(SB) // Save g and stack pointer
MOVW PSALAA, R8
MOVD LCA64(R8), R8
MOVD SAVSTACK_ASYNC(R8), R9
MOVD R15, 0(R9)
MOVD argv+8(FP), R1 // Move function arguments into registers
MOVD dsa+16(FP), g
MOVD fnptr+0(FP), R15
BYTE $0x0D // Branch to function
BYTE $0xEF
BL runtime·load_g(SB) // Restore g and stack pointer
MOVW PSALAA, R8
MOVD LCA64(R8), R8
MOVD SAVSTACK_ASYNC(R8), R9
MOVD 0(R9), R15
RET
// func svcLoad(name *byte) unsafe.Pointer
TEXT ·svcLoad(SB), NOSPLIT, $0
MOVD R15, R2 // Save go stack pointer
MOVD name+0(FP), R0 // Move SVC args into registers
MOVD $0x80000000, R1
MOVD $0, R15
SVC_LOAD
MOVW R15, R3 // Save return code from SVC
MOVD R2, R15 // Restore go stack pointer
CMP R3, $0 // Check SVC return code
BNE error
MOVD $-2, R3 // Reset last bit of entry point to zero
AND R0, R3
MOVD R3, ret+8(FP) // Return entry point returned by SVC
CMP R0, R3 // Check if last bit of entry point was set
BNE done
MOVD R15, R2 // Save go stack pointer
MOVD $0, R15 // Move SVC args into registers (entry point still in r0 from SVC 08)
SVC_DELETE
MOVD R2, R15 // Restore go stack pointer
error:
MOVD $0, ret+8(FP) // Return 0 on failure
done:
XOR R0, R0 // Reset r0 to 0
RET
// func svcUnload(name *byte, fnptr unsafe.Pointer) int64
TEXT ·svcUnload(SB), NOSPLIT, $0
MOVD R15, R2 // Save go stack pointer
MOVD name+0(FP), R0 // Move SVC args into registers
MOVD fnptr+8(FP), R15
SVC_DELETE
XOR R0, R0 // Reset r0 to 0
MOVD R15, R1 // Save SVC return code
MOVD R2, R15 // Restore go stack pointer
MOVD R1, ret+16(FP) // Return SVC return code
RET
// func gettid() uint64
TEXT ·gettid(SB), NOSPLIT, $0
// Get library control area (LCA).
MOVW PSALAA, R8
MOVD LCA64(R8), R8
// Get CEECAATHDID
MOVD CAA(R8), R9
MOVD CEECAATHDID(R9), R9
MOVD R9, ret+0(FP)
RET
//
// Call LE function, if the return is -1
// errno and errno2 is retrieved
//
TEXT ·CallLeFuncWithErr(SB), NOSPLIT, $0
MOVW PSALAA, R8
MOVD LCA64(R8), R8
MOVD CAA(R8), R9
MOVD g, GOCB(R9)
// Restore LE stack.
MOVD SAVSTACK_ASYNC(R8), R9 // R9-> LE stack frame saving address
MOVD 0(R9), R4 // R4-> restore previously saved stack frame pointer
MOVD parms_base+8(FP), R7 // R7 -> argument array
MOVD parms_len+16(FP), R8 // R8 number of arguments
// arg 1 ---> R1
CMP R8, $0
BEQ docall
SUB $1, R8
MOVD 0(R7), R1
// arg 2 ---> R2
CMP R8, $0
BEQ docall
SUB $1, R8
ADD $8, R7
MOVD 0(R7), R2
// arg 3 --> R3
CMP R8, $0
BEQ docall
SUB $1, R8
ADD $8, R7
MOVD 0(R7), R3
CMP R8, $0
BEQ docall
MOVD $2176+16, R6 // starting LE stack address-8 to store 4th argument
repeat:
ADD $8, R7
MOVD 0(R7), R0 // advance arg pointer by 8 byte
ADD $8, R6 // advance LE argument address by 8 byte
MOVD R0, (R4)(R6*1) // copy argument from go-slice to le-frame
SUB $1, R8
CMP R8, $0
BNE repeat
docall:
MOVD funcdesc+0(FP), R8 // R8-> function descriptor
LMG 0(R8), R5, R6
MOVD $0, 0(R9) // R9 address of SAVSTACK_ASYNC
LE_CALL // balr R7, R6 (return #1)
NOPH
MOVD R3, ret+32(FP)
CMP R3, $-1 // compare result to -1
BNE done
// retrieve errno and errno2
MOVD zosLibVec<>(SB), R8
ADD $(__errno), R8
LMG 0(R8), R5, R6
LE_CALL // balr R7, R6 __errno (return #3)
NOPH
MOVWZ 0(R3), R3
MOVD R3, err+48(FP)
MOVD zosLibVec<>(SB), R8
ADD $(__err2ad), R8
LMG 0(R8), R5, R6
LE_CALL // balr R7, R6 __err2ad (return #2)
NOPH
MOVW (R3), R2 // retrieve errno2
MOVD R2, errno2+40(FP) // store in return area
done:
MOVD R4, 0(R9) // Save stack pointer.
RET
//
// Call LE function, if the return is 0
// errno and errno2 is retrieved
//
TEXT ·CallLeFuncWithPtrReturn(SB), NOSPLIT, $0
MOVW PSALAA, R8
MOVD LCA64(R8), R8
MOVD CAA(R8), R9
MOVD g, GOCB(R9)
// Restore LE stack.
MOVD SAVSTACK_ASYNC(R8), R9 // R9-> LE stack frame saving address
MOVD 0(R9), R4 // R4-> restore previously saved stack frame pointer
MOVD parms_base+8(FP), R7 // R7 -> argument array
MOVD parms_len+16(FP), R8 // R8 number of arguments
// arg 1 ---> R1
CMP R8, $0
BEQ docall
SUB $1, R8
MOVD 0(R7), R1
// arg 2 ---> R2
CMP R8, $0
BEQ docall
SUB $1, R8
ADD $8, R7
MOVD 0(R7), R2
// arg 3 --> R3
CMP R8, $0
BEQ docall
SUB $1, R8
ADD $8, R7
MOVD 0(R7), R3
CMP R8, $0
BEQ docall
MOVD $2176+16, R6 // starting LE stack address-8 to store 4th argument
repeat:
ADD $8, R7
MOVD 0(R7), R0 // advance arg pointer by 8 byte
ADD $8, R6 // advance LE argument address by 8 byte
MOVD R0, (R4)(R6*1) // copy argument from go-slice to le-frame
SUB $1, R8
CMP R8, $0
BNE repeat
docall:
MOVD funcdesc+0(FP), R8 // R8-> function descriptor
LMG 0(R8), R5, R6
MOVD $0, 0(R9) // R9 address of SAVSTACK_ASYNC
LE_CALL // balr R7, R6 (return #1)
NOPH
MOVD R3, ret+32(FP)
CMP R3, $0 // compare result to 0
BNE done
// retrieve errno and errno2
MOVD zosLibVec<>(SB), R8
ADD $(__errno), R8
LMG 0(R8), R5, R6
LE_CALL // balr R7, R6 __errno (return #3)
NOPH
MOVWZ 0(R3), R3
MOVD R3, err+48(FP)
MOVD zosLibVec<>(SB), R8
ADD $(__err2ad), R8
LMG 0(R8), R5, R6
LE_CALL // balr R7, R6 __err2ad (return #2)
NOPH
MOVW (R3), R2 // retrieve errno2
MOVD R2, errno2+40(FP) // store in return area
XOR R2, R2
MOVWZ R2, (R3) // clear errno2
done:
MOVD R4, 0(R9) // Save stack pointer.
RET
//
// function to test if a pointer can be safely dereferenced (content read)
// return 0 for succces
//
TEXT ·ptrtest(SB), NOSPLIT, $0-16
MOVD arg+0(FP), R10 // test pointer in R10
// set up R2 to point to CEECAADMC
BYTE $0xE3; BYTE $0x20; BYTE $0x04; BYTE $0xB8; BYTE $0x00; BYTE $0x17 // llgt 2,1208
BYTE $0xB9; BYTE $0x17; BYTE $0x00; BYTE $0x22 // llgtr 2,2
BYTE $0xA5; BYTE $0x26; BYTE $0x7F; BYTE $0xFF // nilh 2,32767
BYTE $0xE3; BYTE $0x22; BYTE $0x00; BYTE $0x58; BYTE $0x00; BYTE $0x04 // lg 2,88(2)
BYTE $0xE3; BYTE $0x22; BYTE $0x00; BYTE $0x08; BYTE $0x00; BYTE $0x04 // lg 2,8(2)
BYTE $0x41; BYTE $0x22; BYTE $0x03; BYTE $0x68 // la 2,872(2)
// set up R5 to point to the "shunt" path which set 1 to R3 (failure)
BYTE $0xB9; BYTE $0x82; BYTE $0x00; BYTE $0x33 // xgr 3,3
BYTE $0xA7; BYTE $0x55; BYTE $0x00; BYTE $0x04 // bras 5,lbl1
BYTE $0xA7; BYTE $0x39; BYTE $0x00; BYTE $0x01 // lghi 3,1
// if r3 is not zero (failed) then branch to finish
BYTE $0xB9; BYTE $0x02; BYTE $0x00; BYTE $0x33 // lbl1 ltgr 3,3
BYTE $0xA7; BYTE $0x74; BYTE $0x00; BYTE $0x08 // brc b'0111',lbl2
// stomic store shunt address in R5 into CEECAADMC
BYTE $0xE3; BYTE $0x52; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x24 // stg 5,0(2)
// now try reading from the test pointer in R10, if it fails it branches to the "lghi" instruction above
BYTE $0xE3; BYTE $0x9A; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x04 // lg 9,0(10)
// finish here, restore 0 into CEECAADMC
BYTE $0xB9; BYTE $0x82; BYTE $0x00; BYTE $0x99 // lbl2 xgr 9,9
BYTE $0xE3; BYTE $0x92; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x24 // stg 9,0(2)
MOVD R3, ret+8(FP) // result in R3
RET
//
// function to test if a untptr can be loaded from a pointer
// return 1: the 8-byte content
// 2: 0 for success, 1 for failure
//
// func safeload(ptr uintptr) ( value uintptr, error uintptr)
TEXT ·safeload(SB), NOSPLIT, $0-24
MOVD ptr+0(FP), R10 // test pointer in R10
MOVD $0x0, R6
BYTE $0xE3; BYTE $0x20; BYTE $0x04; BYTE $0xB8; BYTE $0x00; BYTE $0x17 // llgt 2,1208
BYTE $0xB9; BYTE $0x17; BYTE $0x00; BYTE $0x22 // llgtr 2,2
BYTE $0xA5; BYTE $0x26; BYTE $0x7F; BYTE $0xFF // nilh 2,32767
BYTE $0xE3; BYTE $0x22; BYTE $0x00; BYTE $0x58; BYTE $0x00; BYTE $0x04 // lg 2,88(2)
BYTE $0xE3; BYTE $0x22; BYTE $0x00; BYTE $0x08; BYTE $0x00; BYTE $0x04 // lg 2,8(2)
BYTE $0x41; BYTE $0x22; BYTE $0x03; BYTE $0x68 // la 2,872(2)
BYTE $0xB9; BYTE $0x82; BYTE $0x00; BYTE $0x33 // xgr 3,3
BYTE $0xA7; BYTE $0x55; BYTE $0x00; BYTE $0x04 // bras 5,lbl1
BYTE $0xA7; BYTE $0x39; BYTE $0x00; BYTE $0x01 // lghi 3,1
BYTE $0xB9; BYTE $0x02; BYTE $0x00; BYTE $0x33 // lbl1 ltgr 3,3
BYTE $0xA7; BYTE $0x74; BYTE $0x00; BYTE $0x08 // brc b'0111',lbl2
BYTE $0xE3; BYTE $0x52; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x24 // stg 5,0(2)
BYTE $0xE3; BYTE $0x6A; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x04 // lg 6,0(10)
BYTE $0xB9; BYTE $0x82; BYTE $0x00; BYTE $0x99 // lbl2 xgr 9,9
BYTE $0xE3; BYTE $0x92; BYTE $0x00; BYTE $0x00; BYTE $0x00; BYTE $0x24 // stg 9,0(2)
MOVD R6, value+8(FP) // result in R6
MOVD R3, error+16(FP) // error in R3
RET

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vendor/golang.org/x/sys/unix/bluetooth_linux.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Bluetooth sockets and messages
package unix
// Bluetooth Protocols
const (
BTPROTO_L2CAP = 0
BTPROTO_HCI = 1
BTPROTO_SCO = 2
BTPROTO_RFCOMM = 3
BTPROTO_BNEP = 4
BTPROTO_CMTP = 5
BTPROTO_HIDP = 6
BTPROTO_AVDTP = 7
)
const (
HCI_CHANNEL_RAW = 0
HCI_CHANNEL_USER = 1
HCI_CHANNEL_MONITOR = 2
HCI_CHANNEL_CONTROL = 3
HCI_CHANNEL_LOGGING = 4
)
// Socketoption Level
const (
SOL_BLUETOOTH = 0x112
SOL_HCI = 0x0
SOL_L2CAP = 0x6
SOL_RFCOMM = 0x12
SOL_SCO = 0x11
)

657
vendor/golang.org/x/sys/unix/bpxsvc_zos.go generated vendored Normal file
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// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build zos
package unix
import (
"bytes"
"fmt"
"unsafe"
)
//go:noescape
func bpxcall(plist []unsafe.Pointer, bpx_offset int64)
//go:noescape
func A2e([]byte)
//go:noescape
func E2a([]byte)
const (
BPX4STA = 192 // stat
BPX4FST = 104 // fstat
BPX4LST = 132 // lstat
BPX4OPN = 156 // open
BPX4CLO = 72 // close
BPX4CHR = 500 // chattr
BPX4FCR = 504 // fchattr
BPX4LCR = 1180 // lchattr
BPX4CTW = 492 // cond_timed_wait
BPX4GTH = 1056 // __getthent
BPX4PTQ = 412 // pthread_quiesc
BPX4PTR = 320 // ptrace
)
const (
//options
//byte1
BPX_OPNFHIGH = 0x80
//byte2
BPX_OPNFEXEC = 0x80
//byte3
BPX_O_NOLARGEFILE = 0x08
BPX_O_LARGEFILE = 0x04
BPX_O_ASYNCSIG = 0x02
BPX_O_SYNC = 0x01
//byte4
BPX_O_CREXCL = 0xc0
BPX_O_CREAT = 0x80
BPX_O_EXCL = 0x40
BPX_O_NOCTTY = 0x20
BPX_O_TRUNC = 0x10
BPX_O_APPEND = 0x08
BPX_O_NONBLOCK = 0x04
BPX_FNDELAY = 0x04
BPX_O_RDWR = 0x03
BPX_O_RDONLY = 0x02
BPX_O_WRONLY = 0x01
BPX_O_ACCMODE = 0x03
BPX_O_GETFL = 0x0f
//mode
// byte1 (file type)
BPX_FT_DIR = 1
BPX_FT_CHARSPEC = 2
BPX_FT_REGFILE = 3
BPX_FT_FIFO = 4
BPX_FT_SYMLINK = 5
BPX_FT_SOCKET = 6
//byte3
BPX_S_ISUID = 0x08
BPX_S_ISGID = 0x04
BPX_S_ISVTX = 0x02
BPX_S_IRWXU1 = 0x01
BPX_S_IRUSR = 0x01
//byte4
BPX_S_IRWXU2 = 0xc0
BPX_S_IWUSR = 0x80
BPX_S_IXUSR = 0x40
BPX_S_IRWXG = 0x38
BPX_S_IRGRP = 0x20
BPX_S_IWGRP = 0x10
BPX_S_IXGRP = 0x08
BPX_S_IRWXOX = 0x07
BPX_S_IROTH = 0x04
BPX_S_IWOTH = 0x02
BPX_S_IXOTH = 0x01
CW_INTRPT = 1
CW_CONDVAR = 32
CW_TIMEOUT = 64
PGTHA_NEXT = 2
PGTHA_CURRENT = 1
PGTHA_FIRST = 0
PGTHA_LAST = 3
PGTHA_PROCESS = 0x80
PGTHA_CONTTY = 0x40
PGTHA_PATH = 0x20
PGTHA_COMMAND = 0x10
PGTHA_FILEDATA = 0x08
PGTHA_THREAD = 0x04
PGTHA_PTAG = 0x02
PGTHA_COMMANDLONG = 0x01
PGTHA_THREADFAST = 0x80
PGTHA_FILEPATH = 0x40
PGTHA_THDSIGMASK = 0x20
// thread quiece mode
QUIESCE_TERM int32 = 1
QUIESCE_FORCE int32 = 2
QUIESCE_QUERY int32 = 3
QUIESCE_FREEZE int32 = 4
QUIESCE_UNFREEZE int32 = 5
FREEZE_THIS_THREAD int32 = 6
FREEZE_EXIT int32 = 8
QUIESCE_SRB int32 = 9
)
type Pgtha struct {
Pid uint32 // 0
Tid0 uint32 // 4
Tid1 uint32
Accesspid byte // C
Accesstid byte // D
Accessasid uint16 // E
Loginname [8]byte // 10
Flag1 byte // 18
Flag1b2 byte // 19
}
type Bpxystat_t struct { // DSECT BPXYSTAT
St_id [4]uint8 // 0
St_length uint16 // 0x4
St_version uint16 // 0x6
St_mode uint32 // 0x8
St_ino uint32 // 0xc
St_dev uint32 // 0x10
St_nlink uint32 // 0x14
St_uid uint32 // 0x18
St_gid uint32 // 0x1c
St_size uint64 // 0x20
St_atime uint32 // 0x28
St_mtime uint32 // 0x2c
St_ctime uint32 // 0x30
St_rdev uint32 // 0x34
St_auditoraudit uint32 // 0x38
St_useraudit uint32 // 0x3c
St_blksize uint32 // 0x40
St_createtime uint32 // 0x44
St_auditid [4]uint32 // 0x48
St_res01 uint32 // 0x58
Ft_ccsid uint16 // 0x5c
Ft_flags uint16 // 0x5e
St_res01a [2]uint32 // 0x60
St_res02 uint32 // 0x68
St_blocks uint32 // 0x6c
St_opaque [3]uint8 // 0x70
St_visible uint8 // 0x73
St_reftime uint32 // 0x74
St_fid uint64 // 0x78
St_filefmt uint8 // 0x80
St_fspflag2 uint8 // 0x81
St_res03 [2]uint8 // 0x82
St_ctimemsec uint32 // 0x84
St_seclabel [8]uint8 // 0x88
St_res04 [4]uint8 // 0x90
// end of version 1
_ uint32 // 0x94
St_atime64 uint64 // 0x98
St_mtime64 uint64 // 0xa0
St_ctime64 uint64 // 0xa8
St_createtime64 uint64 // 0xb0
St_reftime64 uint64 // 0xb8
_ uint64 // 0xc0
St_res05 [16]uint8 // 0xc8
// end of version 2
}
type BpxFilestatus struct {
Oflag1 byte
Oflag2 byte
Oflag3 byte
Oflag4 byte
}
type BpxMode struct {
Ftype byte
Mode1 byte
Mode2 byte
Mode3 byte
}
// Thr attribute structure for extended attributes
type Bpxyatt_t struct { // DSECT BPXYATT
Att_id [4]uint8
Att_version uint16
Att_res01 [2]uint8
Att_setflags1 uint8
Att_setflags2 uint8
Att_setflags3 uint8
Att_setflags4 uint8
Att_mode uint32
Att_uid uint32
Att_gid uint32
Att_opaquemask [3]uint8
Att_visblmaskres uint8
Att_opaque [3]uint8
Att_visibleres uint8
Att_size_h uint32
Att_size_l uint32
Att_atime uint32
Att_mtime uint32
Att_auditoraudit uint32
Att_useraudit uint32
Att_ctime uint32
Att_reftime uint32
// end of version 1
Att_filefmt uint8
Att_res02 [3]uint8
Att_filetag uint32
Att_res03 [8]uint8
// end of version 2
Att_atime64 uint64
Att_mtime64 uint64
Att_ctime64 uint64
Att_reftime64 uint64
Att_seclabel [8]uint8
Att_ver3res02 [8]uint8
// end of version 3
}
func BpxOpen(name string, options *BpxFilestatus, mode *BpxMode) (rv int32, rc int32, rn int32) {
if len(name) < 1024 {
var namebuf [1024]byte
sz := int32(copy(namebuf[:], name))
A2e(namebuf[:sz])
var parms [7]unsafe.Pointer
parms[0] = unsafe.Pointer(&sz)
parms[1] = unsafe.Pointer(&namebuf[0])
parms[2] = unsafe.Pointer(options)
parms[3] = unsafe.Pointer(mode)
parms[4] = unsafe.Pointer(&rv)
parms[5] = unsafe.Pointer(&rc)
parms[6] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4OPN)
return rv, rc, rn
}
return -1, -1, -1
}
func BpxClose(fd int32) (rv int32, rc int32, rn int32) {
var parms [4]unsafe.Pointer
parms[0] = unsafe.Pointer(&fd)
parms[1] = unsafe.Pointer(&rv)
parms[2] = unsafe.Pointer(&rc)
parms[3] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4CLO)
return rv, rc, rn
}
func BpxFileFStat(fd int32, st *Bpxystat_t) (rv int32, rc int32, rn int32) {
st.St_id = [4]uint8{0xe2, 0xe3, 0xc1, 0xe3}
st.St_version = 2
stat_sz := uint32(unsafe.Sizeof(*st))
var parms [6]unsafe.Pointer
parms[0] = unsafe.Pointer(&fd)
parms[1] = unsafe.Pointer(&stat_sz)
parms[2] = unsafe.Pointer(st)
parms[3] = unsafe.Pointer(&rv)
parms[4] = unsafe.Pointer(&rc)
parms[5] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4FST)
return rv, rc, rn
}
func BpxFileStat(name string, st *Bpxystat_t) (rv int32, rc int32, rn int32) {
if len(name) < 1024 {
var namebuf [1024]byte
sz := int32(copy(namebuf[:], name))
A2e(namebuf[:sz])
st.St_id = [4]uint8{0xe2, 0xe3, 0xc1, 0xe3}
st.St_version = 2
stat_sz := uint32(unsafe.Sizeof(*st))
var parms [7]unsafe.Pointer
parms[0] = unsafe.Pointer(&sz)
parms[1] = unsafe.Pointer(&namebuf[0])
parms[2] = unsafe.Pointer(&stat_sz)
parms[3] = unsafe.Pointer(st)
parms[4] = unsafe.Pointer(&rv)
parms[5] = unsafe.Pointer(&rc)
parms[6] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4STA)
return rv, rc, rn
}
return -1, -1, -1
}
func BpxFileLStat(name string, st *Bpxystat_t) (rv int32, rc int32, rn int32) {
if len(name) < 1024 {
var namebuf [1024]byte
sz := int32(copy(namebuf[:], name))
A2e(namebuf[:sz])
st.St_id = [4]uint8{0xe2, 0xe3, 0xc1, 0xe3}
st.St_version = 2
stat_sz := uint32(unsafe.Sizeof(*st))
var parms [7]unsafe.Pointer
parms[0] = unsafe.Pointer(&sz)
parms[1] = unsafe.Pointer(&namebuf[0])
parms[2] = unsafe.Pointer(&stat_sz)
parms[3] = unsafe.Pointer(st)
parms[4] = unsafe.Pointer(&rv)
parms[5] = unsafe.Pointer(&rc)
parms[6] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4LST)
return rv, rc, rn
}
return -1, -1, -1
}
func BpxChattr(path string, attr *Bpxyatt_t) (rv int32, rc int32, rn int32) {
if len(path) >= 1024 {
return -1, -1, -1
}
var namebuf [1024]byte
sz := int32(copy(namebuf[:], path))
A2e(namebuf[:sz])
attr_sz := uint32(unsafe.Sizeof(*attr))
var parms [7]unsafe.Pointer
parms[0] = unsafe.Pointer(&sz)
parms[1] = unsafe.Pointer(&namebuf[0])
parms[2] = unsafe.Pointer(&attr_sz)
parms[3] = unsafe.Pointer(attr)
parms[4] = unsafe.Pointer(&rv)
parms[5] = unsafe.Pointer(&rc)
parms[6] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4CHR)
return rv, rc, rn
}
func BpxLchattr(path string, attr *Bpxyatt_t) (rv int32, rc int32, rn int32) {
if len(path) >= 1024 {
return -1, -1, -1
}
var namebuf [1024]byte
sz := int32(copy(namebuf[:], path))
A2e(namebuf[:sz])
attr_sz := uint32(unsafe.Sizeof(*attr))
var parms [7]unsafe.Pointer
parms[0] = unsafe.Pointer(&sz)
parms[1] = unsafe.Pointer(&namebuf[0])
parms[2] = unsafe.Pointer(&attr_sz)
parms[3] = unsafe.Pointer(attr)
parms[4] = unsafe.Pointer(&rv)
parms[5] = unsafe.Pointer(&rc)
parms[6] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4LCR)
return rv, rc, rn
}
func BpxFchattr(fd int32, attr *Bpxyatt_t) (rv int32, rc int32, rn int32) {
attr_sz := uint32(unsafe.Sizeof(*attr))
var parms [6]unsafe.Pointer
parms[0] = unsafe.Pointer(&fd)
parms[1] = unsafe.Pointer(&attr_sz)
parms[2] = unsafe.Pointer(attr)
parms[3] = unsafe.Pointer(&rv)
parms[4] = unsafe.Pointer(&rc)
parms[5] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4FCR)
return rv, rc, rn
}
func BpxCondTimedWait(sec uint32, nsec uint32, events uint32, secrem *uint32, nsecrem *uint32) (rv int32, rc int32, rn int32) {
var parms [8]unsafe.Pointer
parms[0] = unsafe.Pointer(&sec)
parms[1] = unsafe.Pointer(&nsec)
parms[2] = unsafe.Pointer(&events)
parms[3] = unsafe.Pointer(secrem)
parms[4] = unsafe.Pointer(nsecrem)
parms[5] = unsafe.Pointer(&rv)
parms[6] = unsafe.Pointer(&rc)
parms[7] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4CTW)
return rv, rc, rn
}
func BpxGetthent(in *Pgtha, outlen *uint32, out unsafe.Pointer) (rv int32, rc int32, rn int32) {
var parms [7]unsafe.Pointer
inlen := uint32(26) // nothing else will work. Go says Pgtha is 28-byte because of alignment, but Pgtha is "packed" and must be 26-byte
parms[0] = unsafe.Pointer(&inlen)
parms[1] = unsafe.Pointer(&in)
parms[2] = unsafe.Pointer(outlen)
parms[3] = unsafe.Pointer(&out)
parms[4] = unsafe.Pointer(&rv)
parms[5] = unsafe.Pointer(&rc)
parms[6] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4GTH)
return rv, rc, rn
}
func ZosJobname() (jobname string, err error) {
var pgtha Pgtha
pgtha.Pid = uint32(Getpid())
pgtha.Accesspid = PGTHA_CURRENT
pgtha.Flag1 = PGTHA_PROCESS
var out [256]byte
var outlen uint32
outlen = 256
rv, rc, rn := BpxGetthent(&pgtha, &outlen, unsafe.Pointer(&out[0]))
if rv == 0 {
gthc := []byte{0x87, 0xa3, 0x88, 0x83} // 'gthc' in ebcdic
ix := bytes.Index(out[:], gthc)
if ix == -1 {
err = fmt.Errorf("BPX4GTH: gthc return data not found")
return
}
jn := out[ix+80 : ix+88] // we didn't declare Pgthc, but jobname is 8-byte at offset 80
E2a(jn)
jobname = string(bytes.TrimRight(jn, " "))
} else {
err = fmt.Errorf("BPX4GTH: rc=%d errno=%d reason=code=0x%x", rv, rc, rn)
}
return
}
func Bpx4ptq(code int32, data string) (rv int32, rc int32, rn int32) {
var userdata [8]byte
var parms [5]unsafe.Pointer
copy(userdata[:], data+" ")
A2e(userdata[:])
parms[0] = unsafe.Pointer(&code)
parms[1] = unsafe.Pointer(&userdata[0])
parms[2] = unsafe.Pointer(&rv)
parms[3] = unsafe.Pointer(&rc)
parms[4] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4PTQ)
return rv, rc, rn
}
const (
PT_TRACE_ME = 0 // Debug this process
PT_READ_I = 1 // Read a full word
PT_READ_D = 2 // Read a full word
PT_READ_U = 3 // Read control info
PT_WRITE_I = 4 //Write a full word
PT_WRITE_D = 5 //Write a full word
PT_CONTINUE = 7 //Continue the process
PT_KILL = 8 //Terminate the process
PT_READ_GPR = 11 // Read GPR, CR, PSW
PT_READ_FPR = 12 // Read FPR
PT_READ_VR = 13 // Read VR
PT_WRITE_GPR = 14 // Write GPR, CR, PSW
PT_WRITE_FPR = 15 // Write FPR
PT_WRITE_VR = 16 // Write VR
PT_READ_BLOCK = 17 // Read storage
PT_WRITE_BLOCK = 19 // Write storage
PT_READ_GPRH = 20 // Read GPRH
PT_WRITE_GPRH = 21 // Write GPRH
PT_REGHSET = 22 // Read all GPRHs
PT_ATTACH = 30 // Attach to a process
PT_DETACH = 31 // Detach from a process
PT_REGSET = 32 // Read all GPRs
PT_REATTACH = 33 // Reattach to a process
PT_LDINFO = 34 // Read loader info
PT_MULTI = 35 // Multi process mode
PT_LD64INFO = 36 // RMODE64 Info Area
PT_BLOCKREQ = 40 // Block request
PT_THREAD_INFO = 60 // Read thread info
PT_THREAD_MODIFY = 61
PT_THREAD_READ_FOCUS = 62
PT_THREAD_WRITE_FOCUS = 63
PT_THREAD_HOLD = 64
PT_THREAD_SIGNAL = 65
PT_EXPLAIN = 66
PT_EVENTS = 67
PT_THREAD_INFO_EXTENDED = 68
PT_REATTACH2 = 71
PT_CAPTURE = 72
PT_UNCAPTURE = 73
PT_GET_THREAD_TCB = 74
PT_GET_ALET = 75
PT_SWAPIN = 76
PT_EXTENDED_EVENT = 98
PT_RECOVER = 99 // Debug a program check
PT_GPR0 = 0 // General purpose register 0
PT_GPR1 = 1 // General purpose register 1
PT_GPR2 = 2 // General purpose register 2
PT_GPR3 = 3 // General purpose register 3
PT_GPR4 = 4 // General purpose register 4
PT_GPR5 = 5 // General purpose register 5
PT_GPR6 = 6 // General purpose register 6
PT_GPR7 = 7 // General purpose register 7
PT_GPR8 = 8 // General purpose register 8
PT_GPR9 = 9 // General purpose register 9
PT_GPR10 = 10 // General purpose register 10
PT_GPR11 = 11 // General purpose register 11
PT_GPR12 = 12 // General purpose register 12
PT_GPR13 = 13 // General purpose register 13
PT_GPR14 = 14 // General purpose register 14
PT_GPR15 = 15 // General purpose register 15
PT_FPR0 = 16 // Floating point register 0
PT_FPR1 = 17 // Floating point register 1
PT_FPR2 = 18 // Floating point register 2
PT_FPR3 = 19 // Floating point register 3
PT_FPR4 = 20 // Floating point register 4
PT_FPR5 = 21 // Floating point register 5
PT_FPR6 = 22 // Floating point register 6
PT_FPR7 = 23 // Floating point register 7
PT_FPR8 = 24 // Floating point register 8
PT_FPR9 = 25 // Floating point register 9
PT_FPR10 = 26 // Floating point register 10
PT_FPR11 = 27 // Floating point register 11
PT_FPR12 = 28 // Floating point register 12
PT_FPR13 = 29 // Floating point register 13
PT_FPR14 = 30 // Floating point register 14
PT_FPR15 = 31 // Floating point register 15
PT_FPC = 32 // Floating point control register
PT_PSW = 40 // PSW
PT_PSW0 = 40 // Left half of the PSW
PT_PSW1 = 41 // Right half of the PSW
PT_CR0 = 42 // Control register 0
PT_CR1 = 43 // Control register 1
PT_CR2 = 44 // Control register 2
PT_CR3 = 45 // Control register 3
PT_CR4 = 46 // Control register 4
PT_CR5 = 47 // Control register 5
PT_CR6 = 48 // Control register 6
PT_CR7 = 49 // Control register 7
PT_CR8 = 50 // Control register 8
PT_CR9 = 51 // Control register 9
PT_CR10 = 52 // Control register 10
PT_CR11 = 53 // Control register 11
PT_CR12 = 54 // Control register 12
PT_CR13 = 55 // Control register 13
PT_CR14 = 56 // Control register 14
PT_CR15 = 57 // Control register 15
PT_GPRH0 = 58 // GP High register 0
PT_GPRH1 = 59 // GP High register 1
PT_GPRH2 = 60 // GP High register 2
PT_GPRH3 = 61 // GP High register 3
PT_GPRH4 = 62 // GP High register 4
PT_GPRH5 = 63 // GP High register 5
PT_GPRH6 = 64 // GP High register 6
PT_GPRH7 = 65 // GP High register 7
PT_GPRH8 = 66 // GP High register 8
PT_GPRH9 = 67 // GP High register 9
PT_GPRH10 = 68 // GP High register 10
PT_GPRH11 = 69 // GP High register 11
PT_GPRH12 = 70 // GP High register 12
PT_GPRH13 = 71 // GP High register 13
PT_GPRH14 = 72 // GP High register 14
PT_GPRH15 = 73 // GP High register 15
PT_VR0 = 74 // Vector register 0
PT_VR1 = 75 // Vector register 1
PT_VR2 = 76 // Vector register 2
PT_VR3 = 77 // Vector register 3
PT_VR4 = 78 // Vector register 4
PT_VR5 = 79 // Vector register 5
PT_VR6 = 80 // Vector register 6
PT_VR7 = 81 // Vector register 7
PT_VR8 = 82 // Vector register 8
PT_VR9 = 83 // Vector register 9
PT_VR10 = 84 // Vector register 10
PT_VR11 = 85 // Vector register 11
PT_VR12 = 86 // Vector register 12
PT_VR13 = 87 // Vector register 13
PT_VR14 = 88 // Vector register 14
PT_VR15 = 89 // Vector register 15
PT_VR16 = 90 // Vector register 16
PT_VR17 = 91 // Vector register 17
PT_VR18 = 92 // Vector register 18
PT_VR19 = 93 // Vector register 19
PT_VR20 = 94 // Vector register 20
PT_VR21 = 95 // Vector register 21
PT_VR22 = 96 // Vector register 22
PT_VR23 = 97 // Vector register 23
PT_VR24 = 98 // Vector register 24
PT_VR25 = 99 // Vector register 25
PT_VR26 = 100 // Vector register 26
PT_VR27 = 101 // Vector register 27
PT_VR28 = 102 // Vector register 28
PT_VR29 = 103 // Vector register 29
PT_VR30 = 104 // Vector register 30
PT_VR31 = 105 // Vector register 31
PT_PSWG = 106 // PSWG
PT_PSWG0 = 106 // Bytes 0-3
PT_PSWG1 = 107 // Bytes 4-7
PT_PSWG2 = 108 // Bytes 8-11 (IA high word)
PT_PSWG3 = 109 // Bytes 12-15 (IA low word)
)
func Bpx4ptr(request int32, pid int32, addr unsafe.Pointer, data unsafe.Pointer, buffer unsafe.Pointer) (rv int32, rc int32, rn int32) {
var parms [8]unsafe.Pointer
parms[0] = unsafe.Pointer(&request)
parms[1] = unsafe.Pointer(&pid)
parms[2] = unsafe.Pointer(&addr)
parms[3] = unsafe.Pointer(&data)
parms[4] = unsafe.Pointer(&buffer)
parms[5] = unsafe.Pointer(&rv)
parms[6] = unsafe.Pointer(&rc)
parms[7] = unsafe.Pointer(&rn)
bpxcall(parms[:], BPX4PTR)
return rv, rc, rn
}
func copyU8(val uint8, dest []uint8) int {
if len(dest) < 1 {
return 0
}
dest[0] = val
return 1
}
func copyU8Arr(src, dest []uint8) int {
if len(dest) < len(src) {
return 0
}
for i, v := range src {
dest[i] = v
}
return len(src)
}
func copyU16(val uint16, dest []uint16) int {
if len(dest) < 1 {
return 0
}
dest[0] = val
return 1
}
func copyU32(val uint32, dest []uint32) int {
if len(dest) < 1 {
return 0
}
dest[0] = val
return 1
}
func copyU32Arr(src, dest []uint32) int {
if len(dest) < len(src) {
return 0
}
for i, v := range src {
dest[i] = v
}
return len(src)
}
func copyU64(val uint64, dest []uint64) int {
if len(dest) < 1 {
return 0
}
dest[0] = val
return 1
}

192
vendor/golang.org/x/sys/unix/bpxsvc_zos.s generated vendored Normal file
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@ -0,0 +1,192 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include "go_asm.h"
#include "textflag.h"
// function to call USS assembly language services
//
// doc: https://www.ibm.com/support/knowledgecenter/en/SSLTBW_3.1.0/com.ibm.zos.v3r1.bpxb100/bit64env.htm
//
// arg1 unsafe.Pointer array that ressembles an OS PLIST
//
// arg2 function offset as in
// doc: https://www.ibm.com/support/knowledgecenter/en/SSLTBW_3.1.0/com.ibm.zos.v3r1.bpxb100/bpx2cr_List_of_offsets.htm
//
// func bpxcall(plist []unsafe.Pointer, bpx_offset int64)
TEXT ·bpxcall(SB), NOSPLIT|NOFRAME, $0
MOVD plist_base+0(FP), R1 // r1 points to plist
MOVD bpx_offset+24(FP), R2 // r2 offset to BPX vector table
MOVD R14, R7 // save r14
MOVD R15, R8 // save r15
MOVWZ 16(R0), R9
MOVWZ 544(R9), R9
MOVWZ 24(R9), R9 // call vector in r9
ADD R2, R9 // add offset to vector table
MOVWZ (R9), R9 // r9 points to entry point
BYTE $0x0D // BL R14,R9 --> basr r14,r9
BYTE $0xE9 // clobbers 0,1,14,15
MOVD R8, R15 // restore 15
JMP R7 // return via saved return address
// func A2e(arr [] byte)
// code page conversion from 819 to 1047
TEXT ·A2e(SB), NOSPLIT|NOFRAME, $0
MOVD arg_base+0(FP), R2 // pointer to arry of characters
MOVD arg_len+8(FP), R3 // count
XOR R0, R0
XOR R1, R1
BYTE $0xA7; BYTE $0x15; BYTE $0x00; BYTE $0x82 // BRAS 1,(2+(256/2))
// ASCII -> EBCDIC conversion table:
BYTE $0x00; BYTE $0x01; BYTE $0x02; BYTE $0x03
BYTE $0x37; BYTE $0x2d; BYTE $0x2e; BYTE $0x2f
BYTE $0x16; BYTE $0x05; BYTE $0x15; BYTE $0x0b
BYTE $0x0c; BYTE $0x0d; BYTE $0x0e; BYTE $0x0f
BYTE $0x10; BYTE $0x11; BYTE $0x12; BYTE $0x13
BYTE $0x3c; BYTE $0x3d; BYTE $0x32; BYTE $0x26
BYTE $0x18; BYTE $0x19; BYTE $0x3f; BYTE $0x27
BYTE $0x1c; BYTE $0x1d; BYTE $0x1e; BYTE $0x1f
BYTE $0x40; BYTE $0x5a; BYTE $0x7f; BYTE $0x7b
BYTE $0x5b; BYTE $0x6c; BYTE $0x50; BYTE $0x7d
BYTE $0x4d; BYTE $0x5d; BYTE $0x5c; BYTE $0x4e
BYTE $0x6b; BYTE $0x60; BYTE $0x4b; BYTE $0x61
BYTE $0xf0; BYTE $0xf1; BYTE $0xf2; BYTE $0xf3
BYTE $0xf4; BYTE $0xf5; BYTE $0xf6; BYTE $0xf7
BYTE $0xf8; BYTE $0xf9; BYTE $0x7a; BYTE $0x5e
BYTE $0x4c; BYTE $0x7e; BYTE $0x6e; BYTE $0x6f
BYTE $0x7c; BYTE $0xc1; BYTE $0xc2; BYTE $0xc3
BYTE $0xc4; BYTE $0xc5; BYTE $0xc6; BYTE $0xc7
BYTE $0xc8; BYTE $0xc9; BYTE $0xd1; BYTE $0xd2
BYTE $0xd3; BYTE $0xd4; BYTE $0xd5; BYTE $0xd6
BYTE $0xd7; BYTE $0xd8; BYTE $0xd9; BYTE $0xe2
BYTE $0xe3; BYTE $0xe4; BYTE $0xe5; BYTE $0xe6
BYTE $0xe7; BYTE $0xe8; BYTE $0xe9; BYTE $0xad
BYTE $0xe0; BYTE $0xbd; BYTE $0x5f; BYTE $0x6d
BYTE $0x79; BYTE $0x81; BYTE $0x82; BYTE $0x83
BYTE $0x84; BYTE $0x85; BYTE $0x86; BYTE $0x87
BYTE $0x88; BYTE $0x89; BYTE $0x91; BYTE $0x92
BYTE $0x93; BYTE $0x94; BYTE $0x95; BYTE $0x96
BYTE $0x97; BYTE $0x98; BYTE $0x99; BYTE $0xa2
BYTE $0xa3; BYTE $0xa4; BYTE $0xa5; BYTE $0xa6
BYTE $0xa7; BYTE $0xa8; BYTE $0xa9; BYTE $0xc0
BYTE $0x4f; BYTE $0xd0; BYTE $0xa1; BYTE $0x07
BYTE $0x20; BYTE $0x21; BYTE $0x22; BYTE $0x23
BYTE $0x24; BYTE $0x25; BYTE $0x06; BYTE $0x17
BYTE $0x28; BYTE $0x29; BYTE $0x2a; BYTE $0x2b
BYTE $0x2c; BYTE $0x09; BYTE $0x0a; BYTE $0x1b
BYTE $0x30; BYTE $0x31; BYTE $0x1a; BYTE $0x33
BYTE $0x34; BYTE $0x35; BYTE $0x36; BYTE $0x08
BYTE $0x38; BYTE $0x39; BYTE $0x3a; BYTE $0x3b
BYTE $0x04; BYTE $0x14; BYTE $0x3e; BYTE $0xff
BYTE $0x41; BYTE $0xaa; BYTE $0x4a; BYTE $0xb1
BYTE $0x9f; BYTE $0xb2; BYTE $0x6a; BYTE $0xb5
BYTE $0xbb; BYTE $0xb4; BYTE $0x9a; BYTE $0x8a
BYTE $0xb0; BYTE $0xca; BYTE $0xaf; BYTE $0xbc
BYTE $0x90; BYTE $0x8f; BYTE $0xea; BYTE $0xfa
BYTE $0xbe; BYTE $0xa0; BYTE $0xb6; BYTE $0xb3
BYTE $0x9d; BYTE $0xda; BYTE $0x9b; BYTE $0x8b
BYTE $0xb7; BYTE $0xb8; BYTE $0xb9; BYTE $0xab
BYTE $0x64; BYTE $0x65; BYTE $0x62; BYTE $0x66
BYTE $0x63; BYTE $0x67; BYTE $0x9e; BYTE $0x68
BYTE $0x74; BYTE $0x71; BYTE $0x72; BYTE $0x73
BYTE $0x78; BYTE $0x75; BYTE $0x76; BYTE $0x77
BYTE $0xac; BYTE $0x69; BYTE $0xed; BYTE $0xee
BYTE $0xeb; BYTE $0xef; BYTE $0xec; BYTE $0xbf
BYTE $0x80; BYTE $0xfd; BYTE $0xfe; BYTE $0xfb
BYTE $0xfc; BYTE $0xba; BYTE $0xae; BYTE $0x59
BYTE $0x44; BYTE $0x45; BYTE $0x42; BYTE $0x46
BYTE $0x43; BYTE $0x47; BYTE $0x9c; BYTE $0x48
BYTE $0x54; BYTE $0x51; BYTE $0x52; BYTE $0x53
BYTE $0x58; BYTE $0x55; BYTE $0x56; BYTE $0x57
BYTE $0x8c; BYTE $0x49; BYTE $0xcd; BYTE $0xce
BYTE $0xcb; BYTE $0xcf; BYTE $0xcc; BYTE $0xe1
BYTE $0x70; BYTE $0xdd; BYTE $0xde; BYTE $0xdb
BYTE $0xdc; BYTE $0x8d; BYTE $0x8e; BYTE $0xdf
retry:
WORD $0xB9931022 // TROO 2,2,b'0001'
BVS retry
RET
// func e2a(arr [] byte)
// code page conversion from 1047 to 819
TEXT ·E2a(SB), NOSPLIT|NOFRAME, $0
MOVD arg_base+0(FP), R2 // pointer to arry of characters
MOVD arg_len+8(FP), R3 // count
XOR R0, R0
XOR R1, R1
BYTE $0xA7; BYTE $0x15; BYTE $0x00; BYTE $0x82 // BRAS 1,(2+(256/2))
// EBCDIC -> ASCII conversion table:
BYTE $0x00; BYTE $0x01; BYTE $0x02; BYTE $0x03
BYTE $0x9c; BYTE $0x09; BYTE $0x86; BYTE $0x7f
BYTE $0x97; BYTE $0x8d; BYTE $0x8e; BYTE $0x0b
BYTE $0x0c; BYTE $0x0d; BYTE $0x0e; BYTE $0x0f
BYTE $0x10; BYTE $0x11; BYTE $0x12; BYTE $0x13
BYTE $0x9d; BYTE $0x0a; BYTE $0x08; BYTE $0x87
BYTE $0x18; BYTE $0x19; BYTE $0x92; BYTE $0x8f
BYTE $0x1c; BYTE $0x1d; BYTE $0x1e; BYTE $0x1f
BYTE $0x80; BYTE $0x81; BYTE $0x82; BYTE $0x83
BYTE $0x84; BYTE $0x85; BYTE $0x17; BYTE $0x1b
BYTE $0x88; BYTE $0x89; BYTE $0x8a; BYTE $0x8b
BYTE $0x8c; BYTE $0x05; BYTE $0x06; BYTE $0x07
BYTE $0x90; BYTE $0x91; BYTE $0x16; BYTE $0x93
BYTE $0x94; BYTE $0x95; BYTE $0x96; BYTE $0x04
BYTE $0x98; BYTE $0x99; BYTE $0x9a; BYTE $0x9b
BYTE $0x14; BYTE $0x15; BYTE $0x9e; BYTE $0x1a
BYTE $0x20; BYTE $0xa0; BYTE $0xe2; BYTE $0xe4
BYTE $0xe0; BYTE $0xe1; BYTE $0xe3; BYTE $0xe5
BYTE $0xe7; BYTE $0xf1; BYTE $0xa2; BYTE $0x2e
BYTE $0x3c; BYTE $0x28; BYTE $0x2b; BYTE $0x7c
BYTE $0x26; BYTE $0xe9; BYTE $0xea; BYTE $0xeb
BYTE $0xe8; BYTE $0xed; BYTE $0xee; BYTE $0xef
BYTE $0xec; BYTE $0xdf; BYTE $0x21; BYTE $0x24
BYTE $0x2a; BYTE $0x29; BYTE $0x3b; BYTE $0x5e
BYTE $0x2d; BYTE $0x2f; BYTE $0xc2; BYTE $0xc4
BYTE $0xc0; BYTE $0xc1; BYTE $0xc3; BYTE $0xc5
BYTE $0xc7; BYTE $0xd1; BYTE $0xa6; BYTE $0x2c
BYTE $0x25; BYTE $0x5f; BYTE $0x3e; BYTE $0x3f
BYTE $0xf8; BYTE $0xc9; BYTE $0xca; BYTE $0xcb
BYTE $0xc8; BYTE $0xcd; BYTE $0xce; BYTE $0xcf
BYTE $0xcc; BYTE $0x60; BYTE $0x3a; BYTE $0x23
BYTE $0x40; BYTE $0x27; BYTE $0x3d; BYTE $0x22
BYTE $0xd8; BYTE $0x61; BYTE $0x62; BYTE $0x63
BYTE $0x64; BYTE $0x65; BYTE $0x66; BYTE $0x67
BYTE $0x68; BYTE $0x69; BYTE $0xab; BYTE $0xbb
BYTE $0xf0; BYTE $0xfd; BYTE $0xfe; BYTE $0xb1
BYTE $0xb0; BYTE $0x6a; BYTE $0x6b; BYTE $0x6c
BYTE $0x6d; BYTE $0x6e; BYTE $0x6f; BYTE $0x70
BYTE $0x71; BYTE $0x72; BYTE $0xaa; BYTE $0xba
BYTE $0xe6; BYTE $0xb8; BYTE $0xc6; BYTE $0xa4
BYTE $0xb5; BYTE $0x7e; BYTE $0x73; BYTE $0x74
BYTE $0x75; BYTE $0x76; BYTE $0x77; BYTE $0x78
BYTE $0x79; BYTE $0x7a; BYTE $0xa1; BYTE $0xbf
BYTE $0xd0; BYTE $0x5b; BYTE $0xde; BYTE $0xae
BYTE $0xac; BYTE $0xa3; BYTE $0xa5; BYTE $0xb7
BYTE $0xa9; BYTE $0xa7; BYTE $0xb6; BYTE $0xbc
BYTE $0xbd; BYTE $0xbe; BYTE $0xdd; BYTE $0xa8
BYTE $0xaf; BYTE $0x5d; BYTE $0xb4; BYTE $0xd7
BYTE $0x7b; BYTE $0x41; BYTE $0x42; BYTE $0x43
BYTE $0x44; BYTE $0x45; BYTE $0x46; BYTE $0x47
BYTE $0x48; BYTE $0x49; BYTE $0xad; BYTE $0xf4
BYTE $0xf6; BYTE $0xf2; BYTE $0xf3; BYTE $0xf5
BYTE $0x7d; BYTE $0x4a; BYTE $0x4b; BYTE $0x4c
BYTE $0x4d; BYTE $0x4e; BYTE $0x4f; BYTE $0x50
BYTE $0x51; BYTE $0x52; BYTE $0xb9; BYTE $0xfb
BYTE $0xfc; BYTE $0xf9; BYTE $0xfa; BYTE $0xff
BYTE $0x5c; BYTE $0xf7; BYTE $0x53; BYTE $0x54
BYTE $0x55; BYTE $0x56; BYTE $0x57; BYTE $0x58
BYTE $0x59; BYTE $0x5a; BYTE $0xb2; BYTE $0xd4
BYTE $0xd6; BYTE $0xd2; BYTE $0xd3; BYTE $0xd5
BYTE $0x30; BYTE $0x31; BYTE $0x32; BYTE $0x33
BYTE $0x34; BYTE $0x35; BYTE $0x36; BYTE $0x37
BYTE $0x38; BYTE $0x39; BYTE $0xb3; BYTE $0xdb
BYTE $0xdc; BYTE $0xd9; BYTE $0xda; BYTE $0x9f
retry:
WORD $0xB9931022 // TROO 2,2,b'0001'
BVS retry
RET

195
vendor/golang.org/x/sys/unix/cap_freebsd.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build freebsd
package unix
import (
"errors"
"fmt"
)
// Go implementation of C mostly found in /usr/src/sys/kern/subr_capability.c
const (
// This is the version of CapRights this package understands. See C implementation for parallels.
capRightsGoVersion = CAP_RIGHTS_VERSION_00
capArSizeMin = CAP_RIGHTS_VERSION_00 + 2
capArSizeMax = capRightsGoVersion + 2
)
var (
bit2idx = []int{
-1, 0, 1, -1, 2, -1, -1, -1, 3, -1, -1, -1, -1, -1, -1, -1,
4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
}
)
func capidxbit(right uint64) int {
return int((right >> 57) & 0x1f)
}
func rightToIndex(right uint64) (int, error) {
idx := capidxbit(right)
if idx < 0 || idx >= len(bit2idx) {
return -2, fmt.Errorf("index for right 0x%x out of range", right)
}
return bit2idx[idx], nil
}
func caprver(right uint64) int {
return int(right >> 62)
}
func capver(rights *CapRights) int {
return caprver(rights.Rights[0])
}
func caparsize(rights *CapRights) int {
return capver(rights) + 2
}
// CapRightsSet sets the permissions in setrights in rights.
func CapRightsSet(rights *CapRights, setrights []uint64) error {
// This is essentially a copy of cap_rights_vset()
if capver(rights) != CAP_RIGHTS_VERSION_00 {
return fmt.Errorf("bad rights version %d", capver(rights))
}
n := caparsize(rights)
if n < capArSizeMin || n > capArSizeMax {
return errors.New("bad rights size")
}
for _, right := range setrights {
if caprver(right) != CAP_RIGHTS_VERSION_00 {
return errors.New("bad right version")
}
i, err := rightToIndex(right)
if err != nil {
return err
}
if i >= n {
return errors.New("index overflow")
}
if capidxbit(rights.Rights[i]) != capidxbit(right) {
return errors.New("index mismatch")
}
rights.Rights[i] |= right
if capidxbit(rights.Rights[i]) != capidxbit(right) {
return errors.New("index mismatch (after assign)")
}
}
return nil
}
// CapRightsClear clears the permissions in clearrights from rights.
func CapRightsClear(rights *CapRights, clearrights []uint64) error {
// This is essentially a copy of cap_rights_vclear()
if capver(rights) != CAP_RIGHTS_VERSION_00 {
return fmt.Errorf("bad rights version %d", capver(rights))
}
n := caparsize(rights)
if n < capArSizeMin || n > capArSizeMax {
return errors.New("bad rights size")
}
for _, right := range clearrights {
if caprver(right) != CAP_RIGHTS_VERSION_00 {
return errors.New("bad right version")
}
i, err := rightToIndex(right)
if err != nil {
return err
}
if i >= n {
return errors.New("index overflow")
}
if capidxbit(rights.Rights[i]) != capidxbit(right) {
return errors.New("index mismatch")
}
rights.Rights[i] &= ^(right & 0x01FFFFFFFFFFFFFF)
if capidxbit(rights.Rights[i]) != capidxbit(right) {
return errors.New("index mismatch (after assign)")
}
}
return nil
}
// CapRightsIsSet checks whether all the permissions in setrights are present in rights.
func CapRightsIsSet(rights *CapRights, setrights []uint64) (bool, error) {
// This is essentially a copy of cap_rights_is_vset()
if capver(rights) != CAP_RIGHTS_VERSION_00 {
return false, fmt.Errorf("bad rights version %d", capver(rights))
}
n := caparsize(rights)
if n < capArSizeMin || n > capArSizeMax {
return false, errors.New("bad rights size")
}
for _, right := range setrights {
if caprver(right) != CAP_RIGHTS_VERSION_00 {
return false, errors.New("bad right version")
}
i, err := rightToIndex(right)
if err != nil {
return false, err
}
if i >= n {
return false, errors.New("index overflow")
}
if capidxbit(rights.Rights[i]) != capidxbit(right) {
return false, errors.New("index mismatch")
}
if (rights.Rights[i] & right) != right {
return false, nil
}
}
return true, nil
}
func capright(idx uint64, bit uint64) uint64 {
return ((1 << (57 + idx)) | bit)
}
// CapRightsInit returns a pointer to an initialised CapRights structure filled with rights.
// See man cap_rights_init(3) and rights(4).
func CapRightsInit(rights []uint64) (*CapRights, error) {
var r CapRights
r.Rights[0] = (capRightsGoVersion << 62) | capright(0, 0)
r.Rights[1] = capright(1, 0)
err := CapRightsSet(&r, rights)
if err != nil {
return nil, err
}
return &r, nil
}
// CapRightsLimit reduces the operations permitted on fd to at most those contained in rights.
// The capability rights on fd can never be increased by CapRightsLimit.
// See man cap_rights_limit(2) and rights(4).
func CapRightsLimit(fd uintptr, rights *CapRights) error {
return capRightsLimit(int(fd), rights)
}
// CapRightsGet returns a CapRights structure containing the operations permitted on fd.
// See man cap_rights_get(3) and rights(4).
func CapRightsGet(fd uintptr) (*CapRights, error) {
r, err := CapRightsInit(nil)
if err != nil {
return nil, err
}
err = capRightsGet(capRightsGoVersion, int(fd), r)
if err != nil {
return nil, err
}
return r, nil
}

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vendor/golang.org/x/sys/unix/constants.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
package unix
const (
R_OK = 0x4
W_OK = 0x2
X_OK = 0x1
)

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vendor/golang.org/x/sys/unix/dev_aix_ppc.go generated vendored Normal file
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix && ppc
// Functions to access/create device major and minor numbers matching the
// encoding used by AIX.
package unix
// Major returns the major component of a Linux device number.
func Major(dev uint64) uint32 {
return uint32((dev >> 16) & 0xffff)
}
// Minor returns the minor component of a Linux device number.
func Minor(dev uint64) uint32 {
return uint32(dev & 0xffff)
}
// Mkdev returns a Linux device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
return uint64(((major) << 16) | (minor))
}

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vendor/golang.org/x/sys/unix/dev_aix_ppc64.go generated vendored Normal file
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix && ppc64
// Functions to access/create device major and minor numbers matching the
// encoding used AIX.
package unix
// Major returns the major component of a Linux device number.
func Major(dev uint64) uint32 {
return uint32((dev & 0x3fffffff00000000) >> 32)
}
// Minor returns the minor component of a Linux device number.
func Minor(dev uint64) uint32 {
return uint32((dev & 0x00000000ffffffff) >> 0)
}
// Mkdev returns a Linux device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
var DEVNO64 uint64
DEVNO64 = 0x8000000000000000
return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
}

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vendor/golang.org/x/sys/unix/dev_darwin.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Functions to access/create device major and minor numbers matching the
// encoding used in Darwin's sys/types.h header.
package unix
// Major returns the major component of a Darwin device number.
func Major(dev uint64) uint32 {
return uint32((dev >> 24) & 0xff)
}
// Minor returns the minor component of a Darwin device number.
func Minor(dev uint64) uint32 {
return uint32(dev & 0xffffff)
}
// Mkdev returns a Darwin device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
return (uint64(major) << 24) | uint64(minor)
}

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vendor/golang.org/x/sys/unix/dev_dragonfly.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Functions to access/create device major and minor numbers matching the
// encoding used in Dragonfly's sys/types.h header.
//
// The information below is extracted and adapted from sys/types.h:
//
// Minor gives a cookie instead of an index since in order to avoid changing the
// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
// devices that don't use them.
package unix
// Major returns the major component of a DragonFlyBSD device number.
func Major(dev uint64) uint32 {
return uint32((dev >> 8) & 0xff)
}
// Minor returns the minor component of a DragonFlyBSD device number.
func Minor(dev uint64) uint32 {
return uint32(dev & 0xffff00ff)
}
// Mkdev returns a DragonFlyBSD device number generated from the given major and
// minor components.
func Mkdev(major, minor uint32) uint64 {
return (uint64(major) << 8) | uint64(minor)
}

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vendor/golang.org/x/sys/unix/dev_freebsd.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Functions to access/create device major and minor numbers matching the
// encoding used in FreeBSD's sys/types.h header.
//
// The information below is extracted and adapted from sys/types.h:
//
// Minor gives a cookie instead of an index since in order to avoid changing the
// meanings of bits 0-15 or wasting time and space shifting bits 16-31 for
// devices that don't use them.
package unix
// Major returns the major component of a FreeBSD device number.
func Major(dev uint64) uint32 {
return uint32((dev >> 8) & 0xff)
}
// Minor returns the minor component of a FreeBSD device number.
func Minor(dev uint64) uint32 {
return uint32(dev & 0xffff00ff)
}
// Mkdev returns a FreeBSD device number generated from the given major and
// minor components.
func Mkdev(major, minor uint32) uint64 {
return (uint64(major) << 8) | uint64(minor)
}

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vendor/golang.org/x/sys/unix/dev_linux.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Functions to access/create device major and minor numbers matching the
// encoding used by the Linux kernel and glibc.
//
// The information below is extracted and adapted from bits/sysmacros.h in the
// glibc sources:
//
// dev_t in glibc is 64-bit, with 32-bit major and minor numbers. glibc's
// default encoding is MMMM Mmmm mmmM MMmm, where M is a hex digit of the major
// number and m is a hex digit of the minor number. This is backward compatible
// with legacy systems where dev_t is 16 bits wide, encoded as MMmm. It is also
// backward compatible with the Linux kernel, which for some architectures uses
// 32-bit dev_t, encoded as mmmM MMmm.
package unix
// Major returns the major component of a Linux device number.
func Major(dev uint64) uint32 {
major := uint32((dev & 0x00000000000fff00) >> 8)
major |= uint32((dev & 0xfffff00000000000) >> 32)
return major
}
// Minor returns the minor component of a Linux device number.
func Minor(dev uint64) uint32 {
minor := uint32((dev & 0x00000000000000ff) >> 0)
minor |= uint32((dev & 0x00000ffffff00000) >> 12)
return minor
}
// Mkdev returns a Linux device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
dev := (uint64(major) & 0x00000fff) << 8
dev |= (uint64(major) & 0xfffff000) << 32
dev |= (uint64(minor) & 0x000000ff) << 0
dev |= (uint64(minor) & 0xffffff00) << 12
return dev
}

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vendor/golang.org/x/sys/unix/dev_netbsd.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Functions to access/create device major and minor numbers matching the
// encoding used in NetBSD's sys/types.h header.
package unix
// Major returns the major component of a NetBSD device number.
func Major(dev uint64) uint32 {
return uint32((dev & 0x000fff00) >> 8)
}
// Minor returns the minor component of a NetBSD device number.
func Minor(dev uint64) uint32 {
minor := uint32((dev & 0x000000ff) >> 0)
minor |= uint32((dev & 0xfff00000) >> 12)
return minor
}
// Mkdev returns a NetBSD device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
dev := (uint64(major) << 8) & 0x000fff00
dev |= (uint64(minor) << 12) & 0xfff00000
dev |= (uint64(minor) << 0) & 0x000000ff
return dev
}

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vendor/golang.org/x/sys/unix/dev_openbsd.go generated vendored Normal file
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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Functions to access/create device major and minor numbers matching the
// encoding used in OpenBSD's sys/types.h header.
package unix
// Major returns the major component of an OpenBSD device number.
func Major(dev uint64) uint32 {
return uint32((dev & 0x0000ff00) >> 8)
}
// Minor returns the minor component of an OpenBSD device number.
func Minor(dev uint64) uint32 {
minor := uint32((dev & 0x000000ff) >> 0)
minor |= uint32((dev & 0xffff0000) >> 8)
return minor
}
// Mkdev returns an OpenBSD device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
dev := (uint64(major) << 8) & 0x0000ff00
dev |= (uint64(minor) << 8) & 0xffff0000
dev |= (uint64(minor) << 0) & 0x000000ff
return dev
}

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vendor/golang.org/x/sys/unix/dev_zos.go generated vendored Normal file
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build zos && s390x
// Functions to access/create device major and minor numbers matching the
// encoding used by z/OS.
//
// The information below is extracted and adapted from <sys/stat.h> macros.
package unix
// Major returns the major component of a z/OS device number.
func Major(dev uint64) uint32 {
return uint32((dev >> 16) & 0x0000FFFF)
}
// Minor returns the minor component of a z/OS device number.
func Minor(dev uint64) uint32 {
return uint32(dev & 0x0000FFFF)
}
// Mkdev returns a z/OS device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
return (uint64(major) << 16) | uint64(minor)
}

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vendor/golang.org/x/sys/unix/dirent.go generated vendored Normal file
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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
package unix
import "unsafe"
// readInt returns the size-bytes unsigned integer in native byte order at offset off.
func readInt(b []byte, off, size uintptr) (u uint64, ok bool) {
if len(b) < int(off+size) {
return 0, false
}
if isBigEndian {
return readIntBE(b[off:], size), true
}
return readIntLE(b[off:], size), true
}
func readIntBE(b []byte, size uintptr) uint64 {
switch size {
case 1:
return uint64(b[0])
case 2:
_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[1]) | uint64(b[0])<<8
case 4:
_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[3]) | uint64(b[2])<<8 | uint64(b[1])<<16 | uint64(b[0])<<24
case 8:
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
default:
panic("syscall: readInt with unsupported size")
}
}
func readIntLE(b []byte, size uintptr) uint64 {
switch size {
case 1:
return uint64(b[0])
case 2:
_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8
case 4:
_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24
case 8:
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
default:
panic("syscall: readInt with unsupported size")
}
}
// ParseDirent parses up to max directory entries in buf,
// appending the names to names. It returns the number of
// bytes consumed from buf, the number of entries added
// to names, and the new names slice.
func ParseDirent(buf []byte, max int, names []string) (consumed int, count int, newnames []string) {
origlen := len(buf)
count = 0
for max != 0 && len(buf) > 0 {
reclen, ok := direntReclen(buf)
if !ok || reclen > uint64(len(buf)) {
return origlen, count, names
}
rec := buf[:reclen]
buf = buf[reclen:]
ino, ok := direntIno(rec)
if !ok {
break
}
if ino == 0 { // File absent in directory.
continue
}
const namoff = uint64(unsafe.Offsetof(Dirent{}.Name))
namlen, ok := direntNamlen(rec)
if !ok || namoff+namlen > uint64(len(rec)) {
break
}
name := rec[namoff : namoff+namlen]
for i, c := range name {
if c == 0 {
name = name[:i]
break
}
}
// Check for useless names before allocating a string.
if string(name) == "." || string(name) == ".." {
continue
}
max--
count++
names = append(names, string(name))
}
return origlen - len(buf), count, names
}

9
vendor/golang.org/x/sys/unix/endian_big.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
//go:build armbe || arm64be || m68k || mips || mips64 || mips64p32 || ppc || ppc64 || s390 || s390x || shbe || sparc || sparc64
package unix
const isBigEndian = true

9
vendor/golang.org/x/sys/unix/endian_little.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//
//go:build 386 || amd64 || amd64p32 || alpha || arm || arm64 || loong64 || mipsle || mips64le || mips64p32le || nios2 || ppc64le || riscv || riscv64 || sh
package unix
const isBigEndian = false

31
vendor/golang.org/x/sys/unix/env_unix.go generated vendored Normal file
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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
// Unix environment variables.
package unix
import "syscall"
func Getenv(key string) (value string, found bool) {
return syscall.Getenv(key)
}
func Setenv(key, value string) error {
return syscall.Setenv(key, value)
}
func Clearenv() {
syscall.Clearenv()
}
func Environ() []string {
return syscall.Environ()
}
func Unsetenv(key string) error {
return syscall.Unsetenv(key)
}

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vendor/golang.org/x/sys/unix/fcntl.go generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build dragonfly || freebsd || linux || netbsd
package unix
import "unsafe"
// fcntl64Syscall is usually SYS_FCNTL, but is overridden on 32-bit Linux
// systems by fcntl_linux_32bit.go to be SYS_FCNTL64.
var fcntl64Syscall uintptr = SYS_FCNTL
func fcntl(fd int, cmd, arg int) (int, error) {
valptr, _, errno := Syscall(fcntl64Syscall, uintptr(fd), uintptr(cmd), uintptr(arg))
var err error
if errno != 0 {
err = errno
}
return int(valptr), err
}
// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
return fcntl(int(fd), cmd, arg)
}
// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
_, _, errno := Syscall(fcntl64Syscall, fd, uintptr(cmd), uintptr(unsafe.Pointer(lk)))
if errno == 0 {
return nil
}
return errno
}

24
vendor/golang.org/x/sys/unix/fcntl_darwin.go generated vendored Normal file
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unix
import "unsafe"
// FcntlInt performs a fcntl syscall on fd with the provided command and argument.
func FcntlInt(fd uintptr, cmd, arg int) (int, error) {
return fcntl(int(fd), cmd, arg)
}
// FcntlFlock performs a fcntl syscall for the F_GETLK, F_SETLK or F_SETLKW command.
func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {
_, err := fcntl(int(fd), cmd, int(uintptr(unsafe.Pointer(lk))))
return err
}
// FcntlFstore performs a fcntl syscall for the F_PREALLOCATE command.
func FcntlFstore(fd uintptr, cmd int, fstore *Fstore_t) error {
_, err := fcntl(int(fd), cmd, int(uintptr(unsafe.Pointer(fstore))))
return err
}

13
vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (linux && 386) || (linux && arm) || (linux && mips) || (linux && mipsle) || (linux && ppc)
package unix
func init() {
// On 32-bit Linux systems, the fcntl syscall that matches Go's
// Flock_t type is SYS_FCNTL64, not SYS_FCNTL.
fcntl64Syscall = SYS_FCNTL64
}

29
vendor/golang.org/x/sys/unix/fdset.go generated vendored Normal file
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
package unix
// Set adds fd to the set fds.
func (fds *FdSet) Set(fd int) {
fds.Bits[fd/NFDBITS] |= (1 << (uintptr(fd) % NFDBITS))
}
// Clear removes fd from the set fds.
func (fds *FdSet) Clear(fd int) {
fds.Bits[fd/NFDBITS] &^= (1 << (uintptr(fd) % NFDBITS))
}
// IsSet returns whether fd is in the set fds.
func (fds *FdSet) IsSet(fd int) bool {
return fds.Bits[fd/NFDBITS]&(1<<(uintptr(fd)%NFDBITS)) != 0
}
// Zero clears the set fds.
func (fds *FdSet) Zero() {
for i := range fds.Bits {
fds.Bits[i] = 0
}
}

59
vendor/golang.org/x/sys/unix/gccgo.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gccgo && !aix && !hurd
package unix
import "syscall"
// We can't use the gc-syntax .s files for gccgo. On the plus side
// much of the functionality can be written directly in Go.
func realSyscallNoError(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r uintptr)
func realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r, errno uintptr)
func SyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
syscall.Entersyscall()
r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
syscall.Exitsyscall()
return r, 0
}
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
syscall.Entersyscall()
r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
syscall.Exitsyscall()
return r, 0, syscall.Errno(errno)
}
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
syscall.Entersyscall()
r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
syscall.Exitsyscall()
return r, 0, syscall.Errno(errno)
}
func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) {
syscall.Entersyscall()
r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9)
syscall.Exitsyscall()
return r, 0, syscall.Errno(errno)
}
func RawSyscallNoError(trap, a1, a2, a3 uintptr) (r1, r2 uintptr) {
r := realSyscallNoError(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
return r, 0
}
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err syscall.Errno) {
r, errno := realSyscall(trap, a1, a2, a3, 0, 0, 0, 0, 0, 0)
return r, 0, syscall.Errno(errno)
}
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno) {
r, errno := realSyscall(trap, a1, a2, a3, a4, a5, a6, 0, 0, 0)
return r, 0, syscall.Errno(errno)
}

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vendor/golang.org/x/sys/unix/gccgo_c.c generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gccgo && !aix && !hurd
#include <errno.h>
#include <stdint.h>
#include <unistd.h>
#define _STRINGIFY2_(x) #x
#define _STRINGIFY_(x) _STRINGIFY2_(x)
#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__)
// Call syscall from C code because the gccgo support for calling from
// Go to C does not support varargs functions.
struct ret {
uintptr_t r;
uintptr_t err;
};
struct ret gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
__asm__(GOSYM_PREFIX GOPKGPATH ".realSyscall");
struct ret
gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
{
struct ret r;
errno = 0;
r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
r.err = errno;
return r;
}
uintptr_t gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
__asm__(GOSYM_PREFIX GOPKGPATH ".realSyscallNoError");
uintptr_t
gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9)
{
return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
}

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vendor/golang.org/x/sys/unix/gccgo_linux_amd64.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build gccgo && linux && amd64
package unix
import "syscall"
//extern gettimeofday
func realGettimeofday(*Timeval, *byte) int32
func gettimeofday(tv *Timeval) (err syscall.Errno) {
r := realGettimeofday(tv, nil)
if r < 0 {
return syscall.GetErrno()
}
return 0
}

141
vendor/golang.org/x/sys/unix/ifreq_linux.go generated vendored Normal file
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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux
package unix
import (
"unsafe"
)
// Helpers for dealing with ifreq since it contains a union and thus requires a
// lot of unsafe.Pointer casts to use properly.
// An Ifreq is a type-safe wrapper around the raw ifreq struct. An Ifreq
// contains an interface name and a union of arbitrary data which can be
// accessed using the Ifreq's methods. To create an Ifreq, use the NewIfreq
// function.
//
// Use the Name method to access the stored interface name. The union data
// fields can be get and set using the following methods:
// - Uint16/SetUint16: flags
// - Uint32/SetUint32: ifindex, metric, mtu
type Ifreq struct{ raw ifreq }
// NewIfreq creates an Ifreq with the input network interface name after
// validating the name does not exceed IFNAMSIZ-1 (trailing NULL required)
// bytes.
func NewIfreq(name string) (*Ifreq, error) {
// Leave room for terminating NULL byte.
if len(name) >= IFNAMSIZ {
return nil, EINVAL
}
var ifr ifreq
copy(ifr.Ifrn[:], name)
return &Ifreq{raw: ifr}, nil
}
// TODO(mdlayher): get/set methods for hardware address sockaddr, char array, etc.
// Name returns the interface name associated with the Ifreq.
func (ifr *Ifreq) Name() string {
return ByteSliceToString(ifr.raw.Ifrn[:])
}
// According to netdevice(7), only AF_INET addresses are returned for numerous
// sockaddr ioctls. For convenience, we expose these as Inet4Addr since the Port
// field and other data is always empty.
// Inet4Addr returns the Ifreq union data from an embedded sockaddr as a C
// in_addr/Go []byte (4-byte IPv4 address) value. If the sockaddr family is not
// AF_INET, an error is returned.
func (ifr *Ifreq) Inet4Addr() ([]byte, error) {
raw := *(*RawSockaddrInet4)(unsafe.Pointer(&ifr.raw.Ifru[:SizeofSockaddrInet4][0]))
if raw.Family != AF_INET {
// Cannot safely interpret raw.Addr bytes as an IPv4 address.
return nil, EINVAL
}
return raw.Addr[:], nil
}
// SetInet4Addr sets a C in_addr/Go []byte (4-byte IPv4 address) value in an
// embedded sockaddr within the Ifreq's union data. v must be 4 bytes in length
// or an error will be returned.
func (ifr *Ifreq) SetInet4Addr(v []byte) error {
if len(v) != 4 {
return EINVAL
}
var addr [4]byte
copy(addr[:], v)
ifr.clear()
*(*RawSockaddrInet4)(
unsafe.Pointer(&ifr.raw.Ifru[:SizeofSockaddrInet4][0]),
) = RawSockaddrInet4{
// Always set IP family as ioctls would require it anyway.
Family: AF_INET,
Addr: addr,
}
return nil
}
// Uint16 returns the Ifreq union data as a C short/Go uint16 value.
func (ifr *Ifreq) Uint16() uint16 {
return *(*uint16)(unsafe.Pointer(&ifr.raw.Ifru[:2][0]))
}
// SetUint16 sets a C short/Go uint16 value as the Ifreq's union data.
func (ifr *Ifreq) SetUint16(v uint16) {
ifr.clear()
*(*uint16)(unsafe.Pointer(&ifr.raw.Ifru[:2][0])) = v
}
// Uint32 returns the Ifreq union data as a C int/Go uint32 value.
func (ifr *Ifreq) Uint32() uint32 {
return *(*uint32)(unsafe.Pointer(&ifr.raw.Ifru[:4][0]))
}
// SetUint32 sets a C int/Go uint32 value as the Ifreq's union data.
func (ifr *Ifreq) SetUint32(v uint32) {
ifr.clear()
*(*uint32)(unsafe.Pointer(&ifr.raw.Ifru[:4][0])) = v
}
// clear zeroes the ifreq's union field to prevent trailing garbage data from
// being sent to the kernel if an ifreq is reused.
func (ifr *Ifreq) clear() {
for i := range ifr.raw.Ifru {
ifr.raw.Ifru[i] = 0
}
}
// TODO(mdlayher): export as IfreqData? For now we can provide helpers such as
// IoctlGetEthtoolDrvinfo which use these APIs under the hood.
// An ifreqData is an Ifreq which carries pointer data. To produce an ifreqData,
// use the Ifreq.withData method.
type ifreqData struct {
name [IFNAMSIZ]byte
// A type separate from ifreq is required in order to comply with the
// unsafe.Pointer rules since the "pointer-ness" of data would not be
// preserved if it were cast into the byte array of a raw ifreq.
data unsafe.Pointer
// Pad to the same size as ifreq.
_ [len(ifreq{}.Ifru) - SizeofPtr]byte
}
// withData produces an ifreqData with the pointer p set for ioctls which require
// arbitrary pointer data.
func (ifr Ifreq) withData(p unsafe.Pointer) ifreqData {
return ifreqData{
name: ifr.raw.Ifrn,
data: p,
}
}

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vendor/golang.org/x/sys/unix/ioctl_linux.go generated vendored Normal file
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// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unix
import "unsafe"
// IoctlRetInt performs an ioctl operation specified by req on a device
// associated with opened file descriptor fd, and returns a non-negative
// integer that is returned by the ioctl syscall.
func IoctlRetInt(fd int, req uint) (int, error) {
ret, _, err := Syscall(SYS_IOCTL, uintptr(fd), uintptr(req), 0)
if err != 0 {
return 0, err
}
return int(ret), nil
}
func IoctlGetUint32(fd int, req uint) (uint32, error) {
var value uint32
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return value, err
}
func IoctlGetRTCTime(fd int) (*RTCTime, error) {
var value RTCTime
err := ioctlPtr(fd, RTC_RD_TIME, unsafe.Pointer(&value))
return &value, err
}
func IoctlSetRTCTime(fd int, value *RTCTime) error {
return ioctlPtr(fd, RTC_SET_TIME, unsafe.Pointer(value))
}
func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) {
var value RTCWkAlrm
err := ioctlPtr(fd, RTC_WKALM_RD, unsafe.Pointer(&value))
return &value, err
}
func IoctlSetRTCWkAlrm(fd int, value *RTCWkAlrm) error {
return ioctlPtr(fd, RTC_WKALM_SET, unsafe.Pointer(value))
}
// IoctlGetEthtoolDrvinfo fetches ethtool driver information for the network
// device specified by ifname.
func IoctlGetEthtoolDrvinfo(fd int, ifname string) (*EthtoolDrvinfo, error) {
ifr, err := NewIfreq(ifname)
if err != nil {
return nil, err
}
value := EthtoolDrvinfo{Cmd: ETHTOOL_GDRVINFO}
ifrd := ifr.withData(unsafe.Pointer(&value))
err = ioctlIfreqData(fd, SIOCETHTOOL, &ifrd)
return &value, err
}
// IoctlGetWatchdogInfo fetches information about a watchdog device from the
// Linux watchdog API. For more information, see:
// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) {
var value WatchdogInfo
err := ioctlPtr(fd, WDIOC_GETSUPPORT, unsafe.Pointer(&value))
return &value, err
}
// IoctlWatchdogKeepalive issues a keepalive ioctl to a watchdog device. For
// more information, see:
// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
func IoctlWatchdogKeepalive(fd int) error {
// arg is ignored and not a pointer, so ioctl is fine instead of ioctlPtr.
return ioctl(fd, WDIOC_KEEPALIVE, 0)
}
// IoctlFileCloneRange performs an FICLONERANGE ioctl operation to clone the
// range of data conveyed in value to the file associated with the file
// descriptor destFd. See the ioctl_ficlonerange(2) man page for details.
func IoctlFileCloneRange(destFd int, value *FileCloneRange) error {
return ioctlPtr(destFd, FICLONERANGE, unsafe.Pointer(value))
}
// IoctlFileClone performs an FICLONE ioctl operation to clone the entire file
// associated with the file description srcFd to the file associated with the
// file descriptor destFd. See the ioctl_ficlone(2) man page for details.
func IoctlFileClone(destFd, srcFd int) error {
return ioctl(destFd, FICLONE, uintptr(srcFd))
}
type FileDedupeRange struct {
Src_offset uint64
Src_length uint64
Reserved1 uint16
Reserved2 uint32
Info []FileDedupeRangeInfo
}
type FileDedupeRangeInfo struct {
Dest_fd int64
Dest_offset uint64
Bytes_deduped uint64
Status int32
Reserved uint32
}
// IoctlFileDedupeRange performs an FIDEDUPERANGE ioctl operation to share the
// range of data conveyed in value from the file associated with the file
// descriptor srcFd to the value.Info destinations. See the
// ioctl_fideduperange(2) man page for details.
func IoctlFileDedupeRange(srcFd int, value *FileDedupeRange) error {
buf := make([]byte, SizeofRawFileDedupeRange+
len(value.Info)*SizeofRawFileDedupeRangeInfo)
rawrange := (*RawFileDedupeRange)(unsafe.Pointer(&buf[0]))
rawrange.Src_offset = value.Src_offset
rawrange.Src_length = value.Src_length
rawrange.Dest_count = uint16(len(value.Info))
rawrange.Reserved1 = value.Reserved1
rawrange.Reserved2 = value.Reserved2
for i := range value.Info {
rawinfo := (*RawFileDedupeRangeInfo)(unsafe.Pointer(
uintptr(unsafe.Pointer(&buf[0])) + uintptr(SizeofRawFileDedupeRange) +
uintptr(i*SizeofRawFileDedupeRangeInfo)))
rawinfo.Dest_fd = value.Info[i].Dest_fd
rawinfo.Dest_offset = value.Info[i].Dest_offset
rawinfo.Bytes_deduped = value.Info[i].Bytes_deduped
rawinfo.Status = value.Info[i].Status
rawinfo.Reserved = value.Info[i].Reserved
}
err := ioctlPtr(srcFd, FIDEDUPERANGE, unsafe.Pointer(&buf[0]))
// Output
for i := range value.Info {
rawinfo := (*RawFileDedupeRangeInfo)(unsafe.Pointer(
uintptr(unsafe.Pointer(&buf[0])) + uintptr(SizeofRawFileDedupeRange) +
uintptr(i*SizeofRawFileDedupeRangeInfo)))
value.Info[i].Dest_fd = rawinfo.Dest_fd
value.Info[i].Dest_offset = rawinfo.Dest_offset
value.Info[i].Bytes_deduped = rawinfo.Bytes_deduped
value.Info[i].Status = rawinfo.Status
value.Info[i].Reserved = rawinfo.Reserved
}
return err
}
func IoctlHIDGetDesc(fd int, value *HIDRawReportDescriptor) error {
return ioctlPtr(fd, HIDIOCGRDESC, unsafe.Pointer(value))
}
func IoctlHIDGetRawInfo(fd int) (*HIDRawDevInfo, error) {
var value HIDRawDevInfo
err := ioctlPtr(fd, HIDIOCGRAWINFO, unsafe.Pointer(&value))
return &value, err
}
func IoctlHIDGetRawName(fd int) (string, error) {
var value [_HIDIOCGRAWNAME_LEN]byte
err := ioctlPtr(fd, _HIDIOCGRAWNAME, unsafe.Pointer(&value[0]))
return ByteSliceToString(value[:]), err
}
func IoctlHIDGetRawPhys(fd int) (string, error) {
var value [_HIDIOCGRAWPHYS_LEN]byte
err := ioctlPtr(fd, _HIDIOCGRAWPHYS, unsafe.Pointer(&value[0]))
return ByteSliceToString(value[:]), err
}
func IoctlHIDGetRawUniq(fd int) (string, error) {
var value [_HIDIOCGRAWUNIQ_LEN]byte
err := ioctlPtr(fd, _HIDIOCGRAWUNIQ, unsafe.Pointer(&value[0]))
return ByteSliceToString(value[:]), err
}
// IoctlIfreq performs an ioctl using an Ifreq structure for input and/or
// output. See the netdevice(7) man page for details.
func IoctlIfreq(fd int, req uint, value *Ifreq) error {
// It is possible we will add more fields to *Ifreq itself later to prevent
// misuse, so pass the raw *ifreq directly.
return ioctlPtr(fd, req, unsafe.Pointer(&value.raw))
}
// TODO(mdlayher): export if and when IfreqData is exported.
// ioctlIfreqData performs an ioctl using an ifreqData structure for input
// and/or output. See the netdevice(7) man page for details.
func ioctlIfreqData(fd int, req uint, value *ifreqData) error {
// The memory layout of IfreqData (type-safe) and ifreq (not type-safe) are
// identical so pass *IfreqData directly.
return ioctlPtr(fd, req, unsafe.Pointer(value))
}
// IoctlKCMClone attaches a new file descriptor to a multiplexor by cloning an
// existing KCM socket, returning a structure containing the file descriptor of
// the new socket.
func IoctlKCMClone(fd int) (*KCMClone, error) {
var info KCMClone
if err := ioctlPtr(fd, SIOCKCMCLONE, unsafe.Pointer(&info)); err != nil {
return nil, err
}
return &info, nil
}
// IoctlKCMAttach attaches a TCP socket and associated BPF program file
// descriptor to a multiplexor.
func IoctlKCMAttach(fd int, info KCMAttach) error {
return ioctlPtr(fd, SIOCKCMATTACH, unsafe.Pointer(&info))
}
// IoctlKCMUnattach unattaches a TCP socket file descriptor from a multiplexor.
func IoctlKCMUnattach(fd int, info KCMUnattach) error {
return ioctlPtr(fd, SIOCKCMUNATTACH, unsafe.Pointer(&info))
}
// IoctlLoopGetStatus64 gets the status of the loop device associated with the
// file descriptor fd using the LOOP_GET_STATUS64 operation.
func IoctlLoopGetStatus64(fd int) (*LoopInfo64, error) {
var value LoopInfo64
if err := ioctlPtr(fd, LOOP_GET_STATUS64, unsafe.Pointer(&value)); err != nil {
return nil, err
}
return &value, nil
}
// IoctlLoopSetStatus64 sets the status of the loop device associated with the
// file descriptor fd using the LOOP_SET_STATUS64 operation.
func IoctlLoopSetStatus64(fd int, value *LoopInfo64) error {
return ioctlPtr(fd, LOOP_SET_STATUS64, unsafe.Pointer(value))
}
// IoctlLoopConfigure configures all loop device parameters in a single step
func IoctlLoopConfigure(fd int, value *LoopConfig) error {
return ioctlPtr(fd, LOOP_CONFIGURE, unsafe.Pointer(value))
}

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vendor/golang.org/x/sys/unix/ioctl_signed.go generated vendored Normal file
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || solaris
package unix
import (
"unsafe"
)
// ioctl itself should not be exposed directly, but additional get/set
// functions for specific types are permissible.
// IoctlSetInt performs an ioctl operation which sets an integer value
// on fd, using the specified request number.
func IoctlSetInt(fd int, req int, value int) error {
return ioctl(fd, req, uintptr(value))
}
// IoctlSetPointerInt performs an ioctl operation which sets an
// integer value on fd, using the specified request number. The ioctl
// argument is called with a pointer to the integer value, rather than
// passing the integer value directly.
func IoctlSetPointerInt(fd int, req int, value int) error {
v := int32(value)
return ioctlPtr(fd, req, unsafe.Pointer(&v))
}
// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
//
// To change fd's window size, the req argument should be TIOCSWINSZ.
func IoctlSetWinsize(fd int, req int, value *Winsize) error {
// TODO: if we get the chance, remove the req parameter and
// hardcode TIOCSWINSZ.
return ioctlPtr(fd, req, unsafe.Pointer(value))
}
// IoctlSetTermios performs an ioctl on fd with a *Termios.
//
// The req value will usually be TCSETA or TIOCSETA.
func IoctlSetTermios(fd int, req int, value *Termios) error {
// TODO: if we get the chance, remove the req parameter.
return ioctlPtr(fd, req, unsafe.Pointer(value))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
//
// A few ioctl requests use the return value as an output parameter;
// for those, IoctlRetInt should be used instead of this function.
func IoctlGetInt(fd int, req int) (int, error) {
var value int
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return value, err
}
func IoctlGetWinsize(fd int, req int) (*Winsize, error) {
var value Winsize
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return &value, err
}
func IoctlGetTermios(fd int, req int) (*Termios, error) {
var value Termios
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return &value, err
}

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vendor/golang.org/x/sys/unix/ioctl_unsigned.go generated vendored Normal file
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build darwin || dragonfly || freebsd || hurd || linux || netbsd || openbsd
package unix
import (
"unsafe"
)
// ioctl itself should not be exposed directly, but additional get/set
// functions for specific types are permissible.
// IoctlSetInt performs an ioctl operation which sets an integer value
// on fd, using the specified request number.
func IoctlSetInt(fd int, req uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
// IoctlSetPointerInt performs an ioctl operation which sets an
// integer value on fd, using the specified request number. The ioctl
// argument is called with a pointer to the integer value, rather than
// passing the integer value directly.
func IoctlSetPointerInt(fd int, req uint, value int) error {
v := int32(value)
return ioctlPtr(fd, req, unsafe.Pointer(&v))
}
// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
//
// To change fd's window size, the req argument should be TIOCSWINSZ.
func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
// TODO: if we get the chance, remove the req parameter and
// hardcode TIOCSWINSZ.
return ioctlPtr(fd, req, unsafe.Pointer(value))
}
// IoctlSetTermios performs an ioctl on fd with a *Termios.
//
// The req value will usually be TCSETA or TIOCSETA.
func IoctlSetTermios(fd int, req uint, value *Termios) error {
// TODO: if we get the chance, remove the req parameter.
return ioctlPtr(fd, req, unsafe.Pointer(value))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
//
// A few ioctl requests use the return value as an output parameter;
// for those, IoctlRetInt should be used instead of this function.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return &value, err
}

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vendor/golang.org/x/sys/unix/ioctl_zos.go generated vendored Normal file
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build zos && s390x
package unix
import (
"runtime"
"unsafe"
)
// ioctl itself should not be exposed directly, but additional get/set
// functions for specific types are permissible.
// IoctlSetInt performs an ioctl operation which sets an integer value
// on fd, using the specified request number.
func IoctlSetInt(fd int, req int, value int) error {
return ioctl(fd, req, uintptr(value))
}
// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
//
// To change fd's window size, the req argument should be TIOCSWINSZ.
func IoctlSetWinsize(fd int, req int, value *Winsize) error {
// TODO: if we get the chance, remove the req parameter and
// hardcode TIOCSWINSZ.
return ioctlPtr(fd, req, unsafe.Pointer(value))
}
// IoctlSetTermios performs an ioctl on fd with a *Termios.
//
// The req value is expected to be TCSETS, TCSETSW, or TCSETSF
func IoctlSetTermios(fd int, req int, value *Termios) error {
if (req != TCSETS) && (req != TCSETSW) && (req != TCSETSF) {
return ENOSYS
}
err := Tcsetattr(fd, int(req), value)
runtime.KeepAlive(value)
return err
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
//
// A few ioctl requests use the return value as an output parameter;
// for those, IoctlRetInt should be used instead of this function.
func IoctlGetInt(fd int, req int) (int, error) {
var value int
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return value, err
}
func IoctlGetWinsize(fd int, req int) (*Winsize, error) {
var value Winsize
err := ioctlPtr(fd, req, unsafe.Pointer(&value))
return &value, err
}
// IoctlGetTermios performs an ioctl on fd with a *Termios.
//
// The req value is expected to be TCGETS
func IoctlGetTermios(fd int, req int) (*Termios, error) {
var value Termios
if req != TCGETS {
return &value, ENOSYS
}
err := Tcgetattr(fd, &value)
return &value, err
}

249
vendor/golang.org/x/sys/unix/mkall.sh generated vendored Normal file
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#!/usr/bin/env bash
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This script runs or (given -n) prints suggested commands to generate files for
# the Architecture/OS specified by the GOARCH and GOOS environment variables.
# See README.md for more information about how the build system works.
GOOSARCH="${GOOS}_${GOARCH}"
# defaults
mksyscall="go run mksyscall.go"
mkerrors="./mkerrors.sh"
zerrors="zerrors_$GOOSARCH.go"
mksysctl=""
zsysctl="zsysctl_$GOOSARCH.go"
mksysnum=
mktypes=
mkasm=
run="sh"
cmd=""
case "$1" in
-syscalls)
for i in zsyscall*go
do
# Run the command line that appears in the first line
# of the generated file to regenerate it.
sed 1q $i | sed 's;^// ;;' | sh > _$i && gofmt < _$i > $i
rm _$i
done
exit 0
;;
-n)
run="cat"
cmd="echo"
shift
esac
case "$#" in
0)
;;
*)
echo 'usage: mkall.sh [-n]' 1>&2
exit 2
esac
if [[ "$GOOS" = "linux" ]]; then
# Use the Docker-based build system
# Files generated through docker (use $cmd so you can Ctl-C the build or run)
$cmd docker build --tag generate:$GOOS $GOOS
$cmd docker run --interactive --tty --volume $(cd -- "$(dirname -- "$0")/.." && pwd):/build generate:$GOOS
exit
fi
GOOSARCH_in=syscall_$GOOSARCH.go
case "$GOOSARCH" in
_* | *_ | _)
echo 'undefined $GOOS_$GOARCH:' "$GOOSARCH" 1>&2
exit 1
;;
aix_ppc)
mkerrors="$mkerrors -maix32"
mksyscall="go run mksyscall_aix_ppc.go -aix"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
aix_ppc64)
mkerrors="$mkerrors -maix64"
mksyscall="go run mksyscall_aix_ppc64.go -aix"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
darwin_amd64)
mkerrors="$mkerrors -m64"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
mkasm="go run mkasm.go"
;;
darwin_arm64)
mkerrors="$mkerrors -m64"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
mkasm="go run mkasm.go"
;;
dragonfly_amd64)
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -dragonfly"
mksysnum="go run mksysnum.go 'https://gitweb.dragonflybsd.org/dragonfly.git/blob_plain/HEAD:/sys/kern/syscalls.master'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_386)
mkerrors="$mkerrors -m32"
mksyscall="go run mksyscall.go -l32"
mksysnum="go run mksysnum.go 'https://cgit.freebsd.org/src/plain/sys/kern/syscalls.master?h=stable/12'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_amd64)
mkerrors="$mkerrors -m64"
mksysnum="go run mksysnum.go 'https://cgit.freebsd.org/src/plain/sys/kern/syscalls.master?h=stable/12'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
freebsd_arm)
mkerrors="$mkerrors"
mksyscall="go run mksyscall.go -l32 -arm"
mksysnum="go run mksysnum.go 'https://cgit.freebsd.org/src/plain/sys/kern/syscalls.master?h=stable/12'"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
freebsd_arm64)
mkerrors="$mkerrors -m64"
mksysnum="go run mksysnum.go 'https://cgit.freebsd.org/src/plain/sys/kern/syscalls.master?h=stable/12'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
freebsd_riscv64)
mkerrors="$mkerrors -m64"
mksysnum="go run mksysnum.go 'https://cgit.freebsd.org/src/plain/sys/kern/syscalls.master?h=stable/12'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
netbsd_386)
mkerrors="$mkerrors -m32"
mksyscall="go run mksyscall.go -l32 -netbsd"
mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_amd64)
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -netbsd"
mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
netbsd_arm)
mkerrors="$mkerrors"
mksyscall="go run mksyscall.go -l32 -netbsd -arm"
mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
netbsd_arm64)
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -netbsd"
mksysnum="go run mksysnum.go 'http://cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/kern/syscalls.master'"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_386)
mkasm="go run mkasm.go"
mkerrors="$mkerrors -m32"
mksyscall="go run mksyscall.go -l32 -openbsd -libc"
mksysctl="go run mksysctl_openbsd.go"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_amd64)
mkasm="go run mkasm.go"
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -openbsd -libc"
mksysctl="go run mksysctl_openbsd.go"
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
openbsd_arm)
mkasm="go run mkasm.go"
mkerrors="$mkerrors"
mksyscall="go run mksyscall.go -l32 -openbsd -arm -libc"
mksysctl="go run mksysctl_openbsd.go"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
openbsd_arm64)
mkasm="go run mkasm.go"
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -openbsd -libc"
mksysctl="go run mksysctl_openbsd.go"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
openbsd_mips64)
mkasm="go run mkasm.go"
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -openbsd -libc"
mksysctl="go run mksysctl_openbsd.go"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
openbsd_ppc64)
mkasm="go run mkasm.go"
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -openbsd -libc"
mksysctl="go run mksysctl_openbsd.go"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
openbsd_riscv64)
mkasm="go run mkasm.go"
mkerrors="$mkerrors -m64"
mksyscall="go run mksyscall.go -openbsd -libc"
mksysctl="go run mksysctl_openbsd.go"
# Let the type of C char be signed for making the bare syscall
# API consistent across platforms.
mktypes="GOARCH=$GOARCH go tool cgo -godefs -- -fsigned-char"
;;
solaris_amd64)
mksyscall="go run mksyscall_solaris.go"
mkerrors="$mkerrors -m64"
mksysnum=
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
illumos_amd64)
mksyscall="go run mksyscall_solaris.go"
mkerrors=
mksysnum=
mktypes="GOARCH=$GOARCH go tool cgo -godefs"
;;
*)
echo 'unrecognized $GOOS_$GOARCH: ' "$GOOSARCH" 1>&2
exit 1
;;
esac
(
if [ -n "$mkerrors" ]; then echo "$mkerrors |gofmt >$zerrors"; fi
case "$GOOS" in
*)
syscall_goos="syscall_$GOOS.go"
case "$GOOS" in
darwin | dragonfly | freebsd | netbsd | openbsd)
syscall_goos="syscall_bsd.go $syscall_goos"
;;
esac
if [ -n "$mksyscall" ]; then
if [ "$GOOSARCH" == "aix_ppc64" ]; then
# aix/ppc64 script generates files instead of writing to stdin.
echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in && gofmt -w zsyscall_$GOOSARCH.go && gofmt -w zsyscall_"$GOOSARCH"_gccgo.go && gofmt -w zsyscall_"$GOOSARCH"_gc.go " ;
elif [ "$GOOS" == "illumos" ]; then
# illumos code generation requires a --illumos switch
echo "$mksyscall -illumos -tags illumos,$GOARCH syscall_illumos.go |gofmt > zsyscall_illumos_$GOARCH.go";
# illumos implies solaris, so solaris code generation is also required
echo "$mksyscall -tags solaris,$GOARCH syscall_solaris.go syscall_solaris_$GOARCH.go |gofmt >zsyscall_solaris_$GOARCH.go";
else
echo "$mksyscall -tags $GOOS,$GOARCH $syscall_goos $GOOSARCH_in |gofmt >zsyscall_$GOOSARCH.go";
fi
fi
esac
if [ -n "$mksysctl" ]; then echo "$mksysctl |gofmt >$zsysctl"; fi
if [ -n "$mksysnum" ]; then echo "$mksysnum |gofmt >zsysnum_$GOOSARCH.go"; fi
if [ -n "$mktypes" ]; then echo "$mktypes types_$GOOS.go | go run mkpost.go > ztypes_$GOOSARCH.go"; fi
if [ -n "$mkasm" ]; then echo "$mkasm $GOOS $GOARCH"; fi
) | $run

792
vendor/golang.org/x/sys/unix/mkerrors.sh generated vendored Normal file
View file

@ -0,0 +1,792 @@
#!/usr/bin/env bash
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# Generate Go code listing errors and other #defined constant
# values (ENAMETOOLONG etc.), by asking the preprocessor
# about the definitions.
unset LANG
export LC_ALL=C
export LC_CTYPE=C
if test -z "$GOARCH" -o -z "$GOOS"; then
echo 1>&2 "GOARCH or GOOS not defined in environment"
exit 1
fi
# Check that we are using the new build system if we should
if [[ "$GOOS" = "linux" ]] && [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
echo 1>&2 "In the Docker based build system, mkerrors should not be called directly."
echo 1>&2 "See README.md"
exit 1
fi
if [[ "$GOOS" = "aix" ]]; then
CC=${CC:-gcc}
else
CC=${CC:-cc}
fi
if [[ "$GOOS" = "solaris" ]]; then
# Assumes GNU versions of utilities in PATH.
export PATH=/usr/gnu/bin:$PATH
fi
uname=$(uname)
includes_AIX='
#include <net/if.h>
#include <net/netopt.h>
#include <netinet/ip_mroute.h>
#include <sys/protosw.h>
#include <sys/stropts.h>
#include <sys/mman.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/termio.h>
#include <termios.h>
#include <fcntl.h>
#define AF_LOCAL AF_UNIX
'
includes_Darwin='
#define _DARWIN_C_SOURCE
#define KERNEL 1
#define _DARWIN_USE_64_BIT_INODE
#define __APPLE_USE_RFC_3542
#include <stdint.h>
#include <sys/stdio.h>
#include <sys/attr.h>
#include <sys/clonefile.h>
#include <sys/kern_control.h>
#include <sys/types.h>
#include <sys/event.h>
#include <sys/ptrace.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/un.h>
#include <sys/sockio.h>
#include <sys/sys_domain.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <sys/xattr.h>
#include <sys/vsock.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <termios.h>
// for backwards compatibility because moved TIOCREMOTE to Kernel.framework after MacOSX12.0.sdk.
#define TIOCREMOTE 0x80047469
'
includes_DragonFly='
#include <sys/types.h>
#include <sys/event.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_clone.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <net/ip_mroute/ip_mroute.h>
'
includes_FreeBSD='
#include <sys/capsicum.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/disk.h>
#include <sys/event.h>
#include <sys/sched.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <sys/ptrace.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <termios.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <sys/extattr.h>
#if __FreeBSD__ >= 10
#define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10
#undef SIOCAIFADDR
#define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data
#undef SIOCSIFPHYADDR
#define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data
#endif
'
includes_Linux='
#define _LARGEFILE_SOURCE
#define _LARGEFILE64_SOURCE
#ifndef __LP64__
#define _FILE_OFFSET_BITS 64
#endif
#define _GNU_SOURCE
// <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
// these structures. We just include them copied from <bits/termios.h>.
#if defined(__powerpc__)
struct sgttyb {
char sg_ispeed;
char sg_ospeed;
char sg_erase;
char sg_kill;
short sg_flags;
};
struct tchars {
char t_intrc;
char t_quitc;
char t_startc;
char t_stopc;
char t_eofc;
char t_brkc;
};
struct ltchars {
char t_suspc;
char t_dsuspc;
char t_rprntc;
char t_flushc;
char t_werasc;
char t_lnextc;
};
#endif
#include <bits/sockaddr.h>
#include <sys/epoll.h>
#include <sys/eventfd.h>
#include <sys/inotify.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/select.h>
#include <sys/signalfd.h>
#include <sys/socket.h>
#include <sys/timerfd.h>
#include <sys/uio.h>
#include <sys/xattr.h>
#include <netinet/udp.h>
#include <linux/audit.h>
#include <linux/bpf.h>
#include <linux/can.h>
#include <linux/can/error.h>
#include <linux/can/netlink.h>
#include <linux/can/raw.h>
#include <linux/capability.h>
#include <linux/cryptouser.h>
#include <linux/devlink.h>
#include <linux/dm-ioctl.h>
#include <linux/errqueue.h>
#include <linux/ethtool_netlink.h>
#include <linux/falloc.h>
#include <linux/fanotify.h>
#include <linux/fib_rules.h>
#include <linux/filter.h>
#include <linux/fs.h>
#include <linux/fscrypt.h>
#include <linux/fsverity.h>
#include <linux/genetlink.h>
#include <linux/hdreg.h>
#include <linux/hidraw.h>
#include <linux/if.h>
#include <linux/if_addr.h>
#include <linux/if_alg.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/if_ppp.h>
#include <linux/if_tun.h>
#include <linux/if_packet.h>
#include <linux/if_xdp.h>
#include <linux/input.h>
#include <linux/kcm.h>
#include <linux/kexec.h>
#include <linux/keyctl.h>
#include <linux/landlock.h>
#include <linux/loop.h>
#include <linux/lwtunnel.h>
#include <linux/magic.h>
#include <linux/memfd.h>
#include <linux/module.h>
#include <linux/mount.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/nf_tables.h>
#include <linux/netlink.h>
#include <linux/net_namespace.h>
#include <linux/nfc.h>
#include <linux/nsfs.h>
#include <linux/perf_event.h>
#include <linux/pps.h>
#include <linux/ptrace.h>
#include <linux/random.h>
#include <linux/reboot.h>
#include <linux/rtc.h>
#include <linux/rtnetlink.h>
#include <linux/sched.h>
#include <linux/seccomp.h>
#include <linux/serial.h>
#include <linux/sock_diag.h>
#include <linux/sockios.h>
#include <linux/taskstats.h>
#include <linux/tipc.h>
#include <linux/vm_sockets.h>
#include <linux/wait.h>
#include <linux/watchdog.h>
#include <linux/wireguard.h>
#include <mtd/ubi-user.h>
#include <mtd/mtd-user.h>
#include <net/route.h>
#if defined(__sparc__)
// On sparc{,64}, the kernel defines struct termios2 itself which clashes with the
// definition in glibc. As only the error constants are needed here, include the
// generic termibits.h (which is included by termbits.h on sparc).
#include <asm-generic/termbits.h>
#else
#include <asm/termbits.h>
#endif
#ifndef PTRACE_GETREGS
#define PTRACE_GETREGS 0xc
#endif
#ifndef PTRACE_SETREGS
#define PTRACE_SETREGS 0xd
#endif
#ifdef SOL_BLUETOOTH
// SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
// but it is already in bluetooth_linux.go
#undef SOL_BLUETOOTH
#endif
// Certain constants are missing from the fs/crypto UAPI
#define FS_KEY_DESC_PREFIX "fscrypt:"
#define FS_KEY_DESC_PREFIX_SIZE 8
#define FS_MAX_KEY_SIZE 64
// The code generator produces -0x1 for (~0), but an unsigned value is necessary
// for the tipc_subscr timeout __u32 field.
#undef TIPC_WAIT_FOREVER
#define TIPC_WAIT_FOREVER 0xffffffff
// Copied from linux/netfilter/nf_nat.h
// Including linux/netfilter/nf_nat.h here causes conflicts between linux/in.h
// and netinet/in.h.
#define NF_NAT_RANGE_MAP_IPS (1 << 0)
#define NF_NAT_RANGE_PROTO_SPECIFIED (1 << 1)
#define NF_NAT_RANGE_PROTO_RANDOM (1 << 2)
#define NF_NAT_RANGE_PERSISTENT (1 << 3)
#define NF_NAT_RANGE_PROTO_RANDOM_FULLY (1 << 4)
#define NF_NAT_RANGE_PROTO_OFFSET (1 << 5)
#define NF_NAT_RANGE_NETMAP (1 << 6)
#define NF_NAT_RANGE_PROTO_RANDOM_ALL \
(NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PROTO_RANDOM_FULLY)
#define NF_NAT_RANGE_MASK \
(NF_NAT_RANGE_MAP_IPS | NF_NAT_RANGE_PROTO_SPECIFIED | \
NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PERSISTENT | \
NF_NAT_RANGE_PROTO_RANDOM_FULLY | NF_NAT_RANGE_PROTO_OFFSET | \
NF_NAT_RANGE_NETMAP)
// Copied from linux/hid.h.
// Keep in sync with the size of the referenced fields.
#define _HIDIOCGRAWNAME_LEN 128 // sizeof_field(struct hid_device, name)
#define _HIDIOCGRAWPHYS_LEN 64 // sizeof_field(struct hid_device, phys)
#define _HIDIOCGRAWUNIQ_LEN 64 // sizeof_field(struct hid_device, uniq)
#define _HIDIOCGRAWNAME HIDIOCGRAWNAME(_HIDIOCGRAWNAME_LEN)
#define _HIDIOCGRAWPHYS HIDIOCGRAWPHYS(_HIDIOCGRAWPHYS_LEN)
#define _HIDIOCGRAWUNIQ HIDIOCGRAWUNIQ(_HIDIOCGRAWUNIQ_LEN)
'
includes_NetBSD='
#include <sys/types.h>
#include <sys/param.h>
#include <sys/event.h>
#include <sys/extattr.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/sched.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <netinet/if_ether.h>
// Needed since <sys/param.h> refers to it...
#define schedppq 1
'
includes_OpenBSD='
#include <sys/types.h>
#include <sys/param.h>
#include <sys/event.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/select.h>
#include <sys/sched.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/termios.h>
#include <sys/ttycom.h>
#include <sys/unistd.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_types.h>
#include <net/if_var.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <netinet/if_ether.h>
#include <net/if_bridge.h>
// We keep some constants not supported in OpenBSD 5.5 and beyond for
// the promise of compatibility.
#define EMUL_ENABLED 0x1
#define EMUL_NATIVE 0x2
#define IPV6_FAITH 0x1d
#define IPV6_OPTIONS 0x1
#define IPV6_RTHDR_STRICT 0x1
#define IPV6_SOCKOPT_RESERVED1 0x3
#define SIOCGIFGENERIC 0xc020693a
#define SIOCSIFGENERIC 0x80206939
#define WALTSIG 0x4
'
includes_SunOS='
#include <limits.h>
#include <sys/types.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/stream.h>
#include <sys/mman.h>
#include <sys/wait.h>
#include <sys/ioctl.h>
#include <sys/mkdev.h>
#include <net/bpf.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_types.h>
#include <net/route.h>
#include <netinet/icmp6.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip_mroute.h>
#include <termios.h>
'
includes='
#include <sys/types.h>
#include <sys/file.h>
#include <fcntl.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <errno.h>
#include <sys/signal.h>
#include <signal.h>
#include <sys/resource.h>
#include <time.h>
'
ccflags="$@"
# Write go tool cgo -godefs input.
(
echo package unix
echo
echo '/*'
indirect="includes_$(uname)"
echo "${!indirect} $includes"
echo '*/'
echo 'import "C"'
echo 'import "syscall"'
echo
echo 'const ('
# The gcc command line prints all the #defines
# it encounters while processing the input
echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
awk '
$1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
$2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
$2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
$2 ~ /^(SCM_SRCRT)$/ {next}
$2 ~ /^(MAP_FAILED)$/ {next}
$2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
$2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
$2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
$2 !~ /^ECCAPBITS/ &&
$2 !~ /^ETH_/ &&
$2 !~ /^EPROC_/ &&
$2 !~ /^EQUIV_/ &&
$2 !~ /^EXPR_/ &&
$2 !~ /^EVIOC/ &&
$2 ~ /^E[A-Z0-9_]+$/ ||
$2 ~ /^B[0-9_]+$/ ||
$2 ~ /^(OLD|NEW)DEV$/ ||
$2 == "BOTHER" ||
$2 ~ /^CI?BAUD(EX)?$/ ||
$2 == "IBSHIFT" ||
$2 ~ /^V[A-Z0-9]+$/ ||
$2 ~ /^CS[A-Z0-9]/ ||
$2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
$2 ~ /^IGN/ ||
$2 ~ /^IX(ON|ANY|OFF)$/ ||
$2 ~ /^IN(LCR|PCK)$/ ||
$2 !~ "X86_CR3_PCID_NOFLUSH" &&
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
$2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
$2 == "BRKINT" ||
$2 == "HUPCL" ||
$2 == "PENDIN" ||
$2 == "TOSTOP" ||
$2 == "XCASE" ||
$2 == "ALTWERASE" ||
$2 == "NOKERNINFO" ||
$2 == "NFDBITS" ||
$2 ~ /^PAR/ ||
$2 ~ /^SIG[^_]/ ||
$2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
$2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
$2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
$2 ~ /^O?XTABS$/ ||
$2 ~ /^TC[IO](ON|OFF)$/ ||
$2 ~ /^IN_/ ||
$2 ~ /^KCM/ ||
$2 ~ /^LANDLOCK_/ ||
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
$2 == "LOOP_CONFIGURE" ||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MREMAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL|TCPOPT|UDP)_/ ||
$2 ~ /^NFC_(GENL|PROTO|COMM|RF|SE|DIRECTION|LLCP|SOCKPROTO)_/ ||
$2 ~ /^NFC_.*_(MAX)?SIZE$/ ||
$2 ~ /^RAW_PAYLOAD_/ ||
$2 ~ /^[US]F_/ ||
$2 ~ /^TP_STATUS_/ ||
$2 ~ /^FALLOC_/ ||
$2 ~ /^ICMPV?6?_(FILTER|SEC)/ ||
$2 == "SOMAXCONN" ||
$2 == "NAME_MAX" ||
$2 == "IFNAMSIZ" ||
$2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
$2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
$2 ~ /^HW_MACHINE$/ ||
$2 ~ /^SYSCTL_VERS/ ||
$2 !~ "MNT_BITS" &&
$2 ~ /^(MS|MNT|MOUNT|UMOUNT)_/ ||
$2 ~ /^NS_GET_/ ||
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
$2 ~ /^(O|F|[ES]?FD|NAME|S|PTRACE|PT|PIOD|TFD)_/ ||
$2 ~ /^KEXEC_/ ||
$2 ~ /^LINUX_REBOOT_CMD_/ ||
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
$2 ~ /^MODULE_INIT_/ ||
$2 !~ "NLA_TYPE_MASK" &&
$2 !~ /^RTC_VL_(ACCURACY|BACKUP|DATA)/ &&
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
$2 ~ /^SOCK_|SK_DIAG_|SKNLGRP_$/ ||
$2 ~ /^FIORDCHK$/ ||
$2 ~ /^SIOC/ ||
$2 ~ /^TIOC/ ||
$2 ~ /^TCGET/ ||
$2 ~ /^TCSET/ ||
$2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
$2 !~ "RTF_BITS" &&
$2 ~ /^(IFF|IFT|NET_RT|RTM(GRP)?|RTF|RTV|RTA|RTAX)_/ ||
$2 ~ /^BIOC/ ||
$2 ~ /^DIOC/ ||
$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
$2 ~ /^CLONE_[A-Z_]+/ ||
$2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+|BPF_F_LINK)$/ &&
$2 ~ /^(BPF|DLT)_/ ||
$2 ~ /^AUDIT_/ ||
$2 ~ /^(CLOCK|TIMER)_/ ||
$2 ~ /^CAN_/ ||
$2 ~ /^CAP_/ ||
$2 ~ /^CP_/ ||
$2 ~ /^CPUSTATES$/ ||
$2 ~ /^CTLIOCGINFO$/ ||
$2 ~ /^ALG_/ ||
$2 ~ /^FI(CLONE|DEDUPERANGE)/ ||
$2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE)/ ||
$2 ~ /^FS_IOC_.*(ENCRYPTION|VERITY|[GS]ETFLAGS)/ ||
$2 ~ /^FS_VERITY_/ ||
$2 ~ /^FSCRYPT_/ ||
$2 ~ /^DM_/ ||
$2 ~ /^GRND_/ ||
$2 ~ /^RND/ ||
$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
$2 ~ /^KEYCTL_/ ||
$2 ~ /^PERF_/ ||
$2 ~ /^SECCOMP_/ ||
$2 ~ /^SEEK_/ ||
$2 ~ /^SCHED_/ ||
$2 ~ /^SPLICE_/ ||
$2 ~ /^SYNC_FILE_RANGE_/ ||
$2 !~ /IOC_MAGIC/ &&
$2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
$2 ~ /^(VM|VMADDR)_/ ||
$2 ~ /^IOCTL_VM_SOCKETS_/ ||
$2 ~ /^(TASKSTATS|TS)_/ ||
$2 ~ /^CGROUPSTATS_/ ||
$2 ~ /^GENL_/ ||
$2 ~ /^STATX_/ ||
$2 ~ /^RENAME/ ||
$2 ~ /^UBI_IOC[A-Z]/ ||
$2 ~ /^UTIME_/ ||
$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
$2 ~ /^FSOPT_/ ||
$2 ~ /^WDIO[CFS]_/ ||
$2 ~ /^NFN/ ||
$2 !~ /^NFT_META_IIFTYPE/ &&
$2 ~ /^NFT_/ ||
$2 ~ /^NF_NAT_/ ||
$2 ~ /^XDP_/ ||
$2 ~ /^RWF_/ ||
$2 ~ /^(HDIO|WIN|SMART)_/ ||
$2 ~ /^CRYPTO_/ ||
$2 ~ /^TIPC_/ ||
$2 !~ "DEVLINK_RELOAD_LIMITS_VALID_MASK" &&
$2 ~ /^DEVLINK_/ ||
$2 ~ /^ETHTOOL_/ ||
$2 ~ /^LWTUNNEL_IP/ ||
$2 ~ /^ITIMER_/ ||
$2 !~ "WMESGLEN" &&
$2 ~ /^W[A-Z0-9]+$/ ||
$2 ~ /^P_/ ||
$2 ~/^PPPIOC/ ||
$2 ~ /^FAN_|FANOTIFY_/ ||
$2 == "HID_MAX_DESCRIPTOR_SIZE" ||
$2 ~ /^_?HIDIOC/ ||
$2 ~ /^BUS_(USB|HIL|BLUETOOTH|VIRTUAL)$/ ||
$2 ~ /^MTD/ ||
$2 ~ /^OTP/ ||
$2 ~ /^MEM/ ||
$2 ~ /^WG/ ||
$2 ~ /^FIB_RULE_/ ||
$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE|IOMIN$|IOOPT$|ALIGNOFF$|DISCARD|ROTATIONAL$|ZEROOUT$|GETDISKSEQ$)/ {printf("\t%s = C.%s\n", $2, $2)}
$2 ~ /^__WCOREFLAG$/ {next}
$2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
{next}
' | sort
echo ')'
) >_const.go
# Pull out the error names for later.
errors=$(
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
sort
)
# Pull out the signal names for later.
signals=$(
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
grep -v 'SIGSTKSIZE\|SIGSTKSZ\|SIGRT\|SIGMAX64' |
sort
)
# Again, writing regexps to a file.
echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
sort >_error.grep
echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
grep -v 'SIGSTKSIZE\|SIGSTKSZ\|SIGRT\|SIGMAX64' |
sort >_signal.grep
echo '// mkerrors.sh' "$@"
echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
echo
echo "//go:build ${GOARCH} && ${GOOS}"
echo
go tool cgo -godefs -- "$@" _const.go >_error.out
cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
echo
echo '// Errors'
echo 'const ('
cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
echo ')'
echo
echo '// Signals'
echo 'const ('
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
echo ')'
# Run C program to print error and syscall strings.
(
echo -E "
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include <string.h>
#include <signal.h>
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
struct tuple {
int num;
const char *name;
};
struct tuple errors[] = {
"
for i in $errors
do
echo -E ' {'$i', "'$i'" },'
done
echo -E "
};
struct tuple signals[] = {
"
for i in $signals
do
echo -E ' {'$i', "'$i'" },'
done
# Use -E because on some systems bash builtin interprets \n itself.
echo -E '
};
static int
tuplecmp(const void *a, const void *b)
{
return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
}
int
main(void)
{
int i, e;
char buf[1024], *p;
printf("\n\n// Error table\n");
printf("var errorList = [...]struct {\n");
printf("\tnum syscall.Errno\n");
printf("\tname string\n");
printf("\tdesc string\n");
printf("} {\n");
qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
for(i=0; i<nelem(errors); i++) {
e = errors[i].num;
if(i > 0 && errors[i-1].num == e)
continue;
strncpy(buf, strerror(e), sizeof(buf) - 1);
buf[sizeof(buf) - 1] = '\0';
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
}
printf("}\n\n");
printf("\n\n// Signal table\n");
printf("var signalList = [...]struct {\n");
printf("\tnum syscall.Signal\n");
printf("\tname string\n");
printf("\tdesc string\n");
printf("} {\n");
qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
for(i=0; i<nelem(signals); i++) {
e = signals[i].num;
if(i > 0 && signals[i-1].num == e)
continue;
strncpy(buf, strsignal(e), sizeof(buf) - 1);
buf[sizeof(buf) - 1] = '\0';
// lowercase first letter: Bad -> bad, but STREAM -> STREAM.
if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
buf[0] += a - A;
// cut trailing : number.
p = strrchr(buf, ":"[0]);
if(p)
*p = '\0';
printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
}
printf("}\n\n");
return 0;
}
'
) >_errors.c
$CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out

13
vendor/golang.org/x/sys/unix/mmap_nomremap.go generated vendored Normal file
View file

@ -0,0 +1,13 @@
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || openbsd || solaris || zos
package unix
var mapper = &mmapper{
active: make(map[*byte][]byte),
mmap: mmap,
munmap: munmap,
}

57
vendor/golang.org/x/sys/unix/mremap.go generated vendored Normal file
View file

@ -0,0 +1,57 @@
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build linux || netbsd
package unix
import "unsafe"
type mremapMmapper struct {
mmapper
mremap func(oldaddr uintptr, oldlength uintptr, newlength uintptr, flags int, newaddr uintptr) (xaddr uintptr, err error)
}
var mapper = &mremapMmapper{
mmapper: mmapper{
active: make(map[*byte][]byte),
mmap: mmap,
munmap: munmap,
},
mremap: mremap,
}
func (m *mremapMmapper) Mremap(oldData []byte, newLength int, flags int) (data []byte, err error) {
if newLength <= 0 || len(oldData) == 0 || len(oldData) != cap(oldData) || flags&mremapFixed != 0 {
return nil, EINVAL
}
pOld := &oldData[cap(oldData)-1]
m.Lock()
defer m.Unlock()
bOld := m.active[pOld]
if bOld == nil || &bOld[0] != &oldData[0] {
return nil, EINVAL
}
newAddr, errno := m.mremap(uintptr(unsafe.Pointer(&bOld[0])), uintptr(len(bOld)), uintptr(newLength), flags, 0)
if errno != nil {
return nil, errno
}
bNew := unsafe.Slice((*byte)(unsafe.Pointer(newAddr)), newLength)
pNew := &bNew[cap(bNew)-1]
if flags&mremapDontunmap == 0 {
delete(m.active, pOld)
}
m.active[pNew] = bNew
return bNew, nil
}
func Mremap(oldData []byte, newLength int, flags int) (data []byte, err error) {
return mapper.Mremap(oldData, newLength, flags)
}
func MremapPtr(oldAddr unsafe.Pointer, oldSize uintptr, newAddr unsafe.Pointer, newSize uintptr, flags int) (ret unsafe.Pointer, err error) {
xaddr, err := mapper.mremap(uintptr(oldAddr), oldSize, newSize, flags, uintptr(newAddr))
return unsafe.Pointer(xaddr), err
}

15
vendor/golang.org/x/sys/unix/pagesize_unix.go generated vendored Normal file
View file

@ -0,0 +1,15 @@
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
// For Unix, get the pagesize from the runtime.
package unix
import "syscall"
func Getpagesize() int {
return syscall.Getpagesize()
}

111
vendor/golang.org/x/sys/unix/pledge_openbsd.go generated vendored Normal file
View file

@ -0,0 +1,111 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unix
import (
"errors"
"fmt"
"strconv"
)
// Pledge implements the pledge syscall.
//
// This changes both the promises and execpromises; use PledgePromises or
// PledgeExecpromises to only change the promises or execpromises
// respectively.
//
// For more information see pledge(2).
func Pledge(promises, execpromises string) error {
if err := pledgeAvailable(); err != nil {
return err
}
pptr, err := BytePtrFromString(promises)
if err != nil {
return err
}
exptr, err := BytePtrFromString(execpromises)
if err != nil {
return err
}
return pledge(pptr, exptr)
}
// PledgePromises implements the pledge syscall.
//
// This changes the promises and leaves the execpromises untouched.
//
// For more information see pledge(2).
func PledgePromises(promises string) error {
if err := pledgeAvailable(); err != nil {
return err
}
pptr, err := BytePtrFromString(promises)
if err != nil {
return err
}
return pledge(pptr, nil)
}
// PledgeExecpromises implements the pledge syscall.
//
// This changes the execpromises and leaves the promises untouched.
//
// For more information see pledge(2).
func PledgeExecpromises(execpromises string) error {
if err := pledgeAvailable(); err != nil {
return err
}
exptr, err := BytePtrFromString(execpromises)
if err != nil {
return err
}
return pledge(nil, exptr)
}
// majmin returns major and minor version number for an OpenBSD system.
func majmin() (major int, minor int, err error) {
var v Utsname
err = Uname(&v)
if err != nil {
return
}
major, err = strconv.Atoi(string(v.Release[0]))
if err != nil {
err = errors.New("cannot parse major version number returned by uname")
return
}
minor, err = strconv.Atoi(string(v.Release[2]))
if err != nil {
err = errors.New("cannot parse minor version number returned by uname")
return
}
return
}
// pledgeAvailable checks for availability of the pledge(2) syscall
// based on the running OpenBSD version.
func pledgeAvailable() error {
maj, min, err := majmin()
if err != nil {
return err
}
// Require OpenBSD 6.4 as a minimum.
if maj < 6 || (maj == 6 && min <= 3) {
return fmt.Errorf("cannot call Pledge on OpenBSD %d.%d", maj, min)
}
return nil
}

11
vendor/golang.org/x/sys/unix/ptrace_darwin.go generated vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build darwin && !ios
package unix
func ptrace(request int, pid int, addr uintptr, data uintptr) error {
return ptrace1(request, pid, addr, data)
}

11
vendor/golang.org/x/sys/unix/ptrace_ios.go generated vendored Normal file
View file

@ -0,0 +1,11 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build ios
package unix
func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
return ENOTSUP
}

30
vendor/golang.org/x/sys/unix/race.go generated vendored Normal file
View file

@ -0,0 +1,30 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (darwin && race) || (linux && race) || (freebsd && race)
package unix
import (
"runtime"
"unsafe"
)
const raceenabled = true
func raceAcquire(addr unsafe.Pointer) {
runtime.RaceAcquire(addr)
}
func raceReleaseMerge(addr unsafe.Pointer) {
runtime.RaceReleaseMerge(addr)
}
func raceReadRange(addr unsafe.Pointer, len int) {
runtime.RaceReadRange(addr, len)
}
func raceWriteRange(addr unsafe.Pointer, len int) {
runtime.RaceWriteRange(addr, len)
}

25
vendor/golang.org/x/sys/unix/race0.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || (darwin && !race) || (linux && !race) || (freebsd && !race) || netbsd || openbsd || solaris || dragonfly || zos
package unix
import (
"unsafe"
)
const raceenabled = false
func raceAcquire(addr unsafe.Pointer) {
}
func raceReleaseMerge(addr unsafe.Pointer) {
}
func raceReadRange(addr unsafe.Pointer, len int) {
}
func raceWriteRange(addr unsafe.Pointer, len int) {
}

12
vendor/golang.org/x/sys/unix/readdirent_getdents.go generated vendored Normal file
View file

@ -0,0 +1,12 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build aix || dragonfly || freebsd || linux || netbsd || openbsd
package unix
// ReadDirent reads directory entries from fd and writes them into buf.
func ReadDirent(fd int, buf []byte) (n int, err error) {
return Getdents(fd, buf)
}

19
vendor/golang.org/x/sys/unix/readdirent_getdirentries.go generated vendored Normal file
View file

@ -0,0 +1,19 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build darwin || zos
package unix
import "unsafe"
// ReadDirent reads directory entries from fd and writes them into buf.
func ReadDirent(fd int, buf []byte) (n int, err error) {
// Final argument is (basep *uintptr) and the syscall doesn't take nil.
// 64 bits should be enough. (32 bits isn't even on 386). Since the
// actual system call is getdirentries64, 64 is a good guess.
// TODO(rsc): Can we use a single global basep for all calls?
var base = (*uintptr)(unsafe.Pointer(new(uint64)))
return Getdirentries(fd, buf, base)
}

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