updated syscall usage

go.mod

@@ -1,16 +1,18 @@
 module git.giftfish.de/ston1th/gowiki
 
-go 1.19
+go 1.22
+
+toolchain go1.23.0
 
 require (
-	git.giftfish.de/ston1th/godrop/v2 v2.1.1
+	git.giftfish.de/ston1th/godrop/v2 v2.2.0
 	git.giftfish.de/ston1th/jwt/v3 v3.2.0
 	github.com/blevesearch/bleve v1.0.14
 	github.com/gorilla/mux v1.8.0
 	github.com/pquerna/otp v1.4.0
 	github.com/russross/blackfriday v1.6.0
 	github.com/urfave/cli v1.22.12
-	go.etcd.io/bbolt v1.3.7
+	go.etcd.io/bbolt v1.3.11
 	golang.org/x/crypto v0.7.0
 )
 
@@ -35,6 +37,6 @@ require (
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/steveyen/gtreap v0.1.0 // indirect
 	github.com/willf/bitset v1.1.11 // indirect
-	golang.org/x/sys v0.6.0 // indirect
+	golang.org/x/sys v0.24.0 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 )

go.sum

@@ -1,5 +1,5 @@
-git.giftfish.de/ston1th/godrop/v2 v2.1.1 h1:jCzQPFpRImr2N4kz+4lC7wGZJAWGx9pH5X09nUsRQDU=
+git.giftfish.de/ston1th/godrop/v2 v2.2.0 h1:jdcPJeotiuug3tC4zXvwnauen1Y7kfF9CbFKQbGttYU=
-git.giftfish.de/ston1th/godrop/v2 v2.1.1/go.mod h1:DWC4iM+u/bpdJsauL00h0V9tZ97d6Bzi2RGaFKlvZoQ=
+git.giftfish.de/ston1th/godrop/v2 v2.2.0/go.mod h1:gDAD0cWURkN0cMAjjSKB6a6jqIXvOrY8Th25HdoJAyg=
 git.giftfish.de/ston1th/jwt/v3 v3.2.0 h1:V6Lh7OjXn4D3HPd/LoDf7w5N7cyiSXEPAQCIfSVZ05c=
 git.giftfish.de/ston1th/jwt/v3 v3.2.0/go.mod h1:jDALrW7OKeIaqYuMxs3GWyPRnQZmk/R+Lu9p/Em3Ziw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
@@ -139,21 +139,23 @@ github.com/willf/bitset v1.1.11 h1:N7Z7E9UvjW+sGsEl7k/SJrvY2reP1A07MrGuCjIOjRE=
 github.com/willf/bitset v1.1.11/go.mod h1:83CECat5yLh5zVOf4P1ErAgKA5UDvKtgyUABdr3+MjI=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 go.etcd.io/bbolt v1.3.5/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
-go.etcd.io/bbolt v1.3.7 h1:j+zJOnnEjF/kyHlDDgGnVL/AIqIJPq8UoB2GSNfkUfQ=
+go.etcd.io/bbolt v1.3.11 h1:yGEzV1wPz2yVCLsD8ZAiGHhHVlczyC9d1rP43/VCRJ0=
-go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
+go.etcd.io/bbolt v1.3.11/go.mod h1:dksAq7YMXoljX0xu6VF5DMZGbhYYoLUalEiSySYAS4I=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181221143128-b4a75ba826a6/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
+golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

vendor/go.etcd.io/bbolt/.go-version

@@ -0,0 +1 @@
+1.22.6

vendor/go.etcd.io/bbolt/Makefile

@@ -41,6 +41,15 @@ coverage:
 	TEST_FREELIST_TYPE=array go test -v -timeout 30m \
 		-coverprofile cover-freelist-array.out -covermode atomic
 
+BOLT_CMD=bbolt
+
+build:
+	go build -o bin/${BOLT_CMD} ./cmd/${BOLT_CMD}
+
+.PHONY: clean
+clean: # Clean binaries
+	rm -f ./bin/${BOLT_CMD}
+
 .PHONY: gofail-enable
 gofail-enable: install-gofail
 	gofail enable .
@@ -61,3 +70,7 @@ test-failpoint:
 	@echo "[failpoint] array freelist test"
 	TEST_FREELIST_TYPE=array go test -v ${TESTFLAGS} -timeout 30m ./tests/failpoint
 
+.PHONY: test-robustness # Running robustness tests requires root permission
+test-robustness:
+	go test -v ${TESTFLAGS} ./tests/dmflakey -test.root
+	go test -v ${TESTFLAGS} ./tests/robustness -test.root

vendor/go.etcd.io/bbolt/README.md

@@ -421,10 +421,19 @@ Prev()   Move to the previous key.
 ```
 
 Each of those functions has a return signature of `(key []byte, value []byte)`.
-When you have iterated to the end of the cursor then `Next()` will return a
+You must seek to a position using `First()`, `Last()`, or `Seek()` before calling
-`nil` key.  You must seek to a position using `First()`, `Last()`, or `Seek()`
+`Next()` or `Prev()`. If you do not seek to a position then these functions will
-before calling `Next()` or `Prev()`. If you do not seek to a position then
+return a `nil` key.
-these functions will return a `nil` key.
+
+When you have iterated to the end of the cursor, then `Next()` will return a
+`nil` key and the cursor still points to the last element if present. When you
+have iterated to the beginning of the cursor, then `Prev()` will return a `nil`
+key and the cursor still points to the first element if present.
+
+If you remove key/value pairs during iteration, the cursor may automatically
+move to the next position if present in current node each time removing a key.
+When you call `c.Next()` after removing a key, it may skip one key/value pair.
+Refer to [pull/611](https://github.com/etcd-io/bbolt/pull/611) to get more detailed info.
 
 During iteration, if the key is non-`nil` but the value is `nil`, that means
 the key refers to a bucket rather than a value.  Use `Bucket.Bucket()` to
@@ -850,6 +859,12 @@ Here are a few things to note when evaluating and using Bolt:
   to grow. However, it's important to note that deleting large chunks of data
   will not allow you to reclaim that space on disk.
 
+* Removing key/values pairs in a bucket during iteration on the bucket using
+  cursor may not work properly. Each time when removing a key/value pair, the
+  cursor may automatically move to the next position if present. When users
+  call `c.Next()` after removing a key, it may skip one key/value pair.
+  Refer to https://github.com/etcd-io/bbolt/pull/611 for more detailed info.
+
   For more information on page allocation, [see this comment][page-allocation].
 
 [page-allocation]: https://github.com/boltdb/bolt/issues/308#issuecomment-74811638

vendor/go.etcd.io/bbolt/bolt_openbsd.go

@@ -1,22 +1,11 @@
 package bbolt
 
 import (
-	"syscall"
+	"golang.org/x/sys/unix"
-	"unsafe"
-)
-
-const (
-	msAsync      = 1 << iota // perform asynchronous writes
-	msSync                   // perform synchronous writes
-	msInvalidate             // invalidate cached data
 )
 
 func msync(db *DB) error {
-	_, _, errno := syscall.Syscall(syscall.SYS_MSYNC, uintptr(unsafe.Pointer(db.data)), uintptr(db.datasz), msInvalidate)
+	return unix.Msync(db.data[:db.datasz], unix.MS_INVALIDATE)
-	if errno != 0 {
-		return errno
-	}
-	return nil
 }
 
 func fdatasync(db *DB) error {

vendor/go.etcd.io/bbolt/bucket.go

@@ -162,12 +162,17 @@ func (b *Bucket) CreateBucket(key []byte) (*Bucket, error) {
 		return nil, ErrBucketNameRequired
 	}
 
+	// Insert into node.
+	// Tip: Use a new variable `newKey` instead of reusing the existing `key` to prevent
+	// it from being marked as leaking, and accordingly cannot be allocated on stack.
+	newKey := cloneBytes(key)
+
 	// Move cursor to correct position.
 	c := b.Cursor()
-	k, _, flags := c.seek(key)
+	k, _, flags := c.seek(newKey)
 
 	// Return an error if there is an existing key.
-	if bytes.Equal(key, k) {
+	if bytes.Equal(newKey, k) {
 		if (flags & bucketLeafFlag) != 0 {
 			return nil, ErrBucketExists
 		}
@@ -182,16 +187,14 @@ func (b *Bucket) CreateBucket(key []byte) (*Bucket, error) {
 	}
 	var value = bucket.write()
 
-	// Insert into node.
+	c.node().put(newKey, newKey, value, 0, bucketLeafFlag)
-	key = cloneBytes(key)
-	c.node().put(key, key, value, 0, bucketLeafFlag)
 
 	// Since subbuckets are not allowed on inline buckets, we need to
 	// dereference the inline page, if it exists. This will cause the bucket
 	// to be treated as a regular, non-inline bucket for the rest of the tx.
 	b.page = nil
 
-	return b.Bucket(key), nil
+	return b.Bucket(newKey), nil
 }
 
 // CreateBucketIfNotExists creates a new bucket if it doesn't already exist and returns a reference to it.
@@ -288,18 +291,23 @@ func (b *Bucket) Put(key []byte, value []byte) error {
 		return ErrValueTooLarge
 	}
 
+	// Insert into node.
+	// Tip: Use a new variable `newKey` instead of reusing the existing `key` to prevent
+	// it from being marked as leaking, and accordingly cannot be allocated on stack.
+	newKey := cloneBytes(key)
+
 	// Move cursor to correct position.
 	c := b.Cursor()
-	k, _, flags := c.seek(key)
+	k, _, flags := c.seek(newKey)
 
 	// Return an error if there is an existing key with a bucket value.
-	if bytes.Equal(key, k) && (flags&bucketLeafFlag) != 0 {
+	if bytes.Equal(newKey, k) && (flags&bucketLeafFlag) != 0 {
 		return ErrIncompatibleValue
 	}
 
-	// Insert into node.
+	// gofail: var beforeBucketPut struct{}
-	key = cloneBytes(key)
+
-	c.node().put(key, key, value, 0, 0)
+	c.node().put(newKey, newKey, value, 0, 0)
 
 	return nil
 }

vendor/go.etcd.io/bbolt/cursor.go

@@ -71,7 +71,7 @@ func (c *Cursor) Last() (key []byte, value []byte) {
 
 	// If this is an empty page (calling Delete may result in empty pages)
 	// we call prev to find the last page that is not empty
-	for len(c.stack) > 0 && c.stack[len(c.stack)-1].count() == 0 {
+	for len(c.stack) > 1 && c.stack[len(c.stack)-1].count() == 0 {
 		c.prev()
 	}
 
@@ -254,6 +254,15 @@ func (c *Cursor) prev() (key []byte, value []byte, flags uint32) {
 			elem.index--
 			break
 		}
+		// If we've hit the beginning, we should stop moving the cursor,
+		// and stay at the first element, so that users can continue to
+		// iterate over the elements in reverse direction by calling `Next`.
+		// We should return nil in such case.
+		// Refer to https://github.com/etcd-io/bbolt/issues/733
+		if len(c.stack) == 1 {
+			c.first()
+			return nil, nil, 0
+		}
 		c.stack = c.stack[:i]
 	}
 

vendor/go.etcd.io/bbolt/db.go

@@ -57,6 +57,12 @@ const (
 // All data access is performed through transactions which can be obtained through the DB.
 // All the functions on DB will return a ErrDatabaseNotOpen if accessed before Open() is called.
 type DB struct {
+	// Put `stats` at the first field to ensure it's 64-bit aligned. Note that
+	// the first word in an allocated struct can be relied upon to be 64-bit
+	// aligned. Refer to https://pkg.go.dev/sync/atomic#pkg-note-BUG. Also
+	// refer to discussion in https://github.com/etcd-io/bbolt/issues/577.
+	stats Stats
+
 	// When enabled, the database will perform a Check() after every commit.
 	// A panic is issued if the database is in an inconsistent state. This
 	// flag has a large performance impact so it should only be used for
@@ -147,7 +153,6 @@ type DB struct {
 	opened   bool
 	rwtx     *Tx
 	txs      []*Tx
-	stats    Stats
 
 	freelist     *freelist
 	freelistLoad sync.Once
@@ -424,7 +429,7 @@ func (db *DB) hasSyncedFreelist() bool {
 
 // mmap opens the underlying memory-mapped file and initializes the meta references.
 // minsz is the minimum size that the new mmap can be.
-func (db *DB) mmap(minsz int) error {
+func (db *DB) mmap(minsz int) (err error) {
 	db.mmaplock.Lock()
 	defer db.mmaplock.Unlock()
 
@@ -459,17 +464,27 @@ func (db *DB) mmap(minsz int) error {
 	}
 
 	// Unmap existing data before continuing.
-	if err := db.munmap(); err != nil {
+	if err = db.munmap(); err != nil {
 		return err
 	}
 
 	// Memory-map the data file as a byte slice.
 	// gofail: var mapError string
 	// return errors.New(mapError)
-	if err := mmap(db, size); err != nil {
+	if err = mmap(db, size); err != nil {
 		return err
 	}
 
+	// Perform unmmap on any error to reset all data fields:
+	// dataref, data, datasz, meta0 and meta1.
+	defer func() {
+		if err != nil {
+			if unmapErr := db.munmap(); unmapErr != nil {
+				err = fmt.Errorf("%w; rollback unmap also failed: %v", err, unmapErr)
+			}
+		}
+	}()
+
 	if db.Mlock {
 		// Don't allow swapping of data file
 		if err := db.mlock(fileSize); err != nil {
@@ -509,7 +524,7 @@ func (db *DB) munmap() error {
 	// gofail: var unmapError string
 	// return errors.New(unmapError)
 	if err := munmap(db); err != nil {
-		return fmt.Errorf("unmap error: " + err.Error())
+		return fmt.Errorf("unmap error: %v", err.Error())
 	}
 
 	return nil
@@ -553,15 +568,19 @@ func (db *DB) mmapSize(size int) (int, error) {
 }
 
 func (db *DB) munlock(fileSize int) error {
+	// gofail: var munlockError string
+	// return errors.New(munlockError)
 	if err := munlock(db, fileSize); err != nil {
-		return fmt.Errorf("munlock error: " + err.Error())
+		return fmt.Errorf("munlock error: %v", err.Error())
 	}
 	return nil
 }
 
 func (db *DB) mlock(fileSize int) error {
+	// gofail: var mlockError string
+	// return errors.New(mlockError)
 	if err := mlock(db, fileSize); err != nil {
-		return fmt.Errorf("mlock error: " + err.Error())
+		return fmt.Errorf("mlock error: %v", err.Error())
 	}
 	return nil
 }
@@ -649,9 +668,10 @@ func (db *DB) close() error {
 	// Clear ops.
 	db.ops.writeAt = nil
 
+	var errs []error
 	// Close the mmap.
 	if err := db.munmap(); err != nil {
-		return err
+		errs = append(errs, err)
 	}
 
 	// Close file handles.
@@ -660,18 +680,22 @@ func (db *DB) close() error {
 		if !db.readOnly {
 			// Unlock the file.
 			if err := funlock(db); err != nil {
-				return fmt.Errorf("bolt.Close(): funlock error: %w", err)
+				errs = append(errs, fmt.Errorf("bolt.Close(): funlock error: %w", err))
 			}
 		}
 
 		// Close the file descriptor.
 		if err := db.file.Close(); err != nil {
-			return fmt.Errorf("db file close: %s", err)
+			errs = append(errs, fmt.Errorf("db file close: %w", err))
 		}
 		db.file = nil
 	}
 
 	db.path = ""
+
+	if len(errs) > 0 {
+		return errs[0]
+	}
 	return nil
 }
 
@@ -1135,6 +1159,8 @@ func (db *DB) grow(sz int) error {
 	// https://github.com/boltdb/bolt/issues/284
 	if !db.NoGrowSync && !db.readOnly {
 		if runtime.GOOS != "windows" {
+			// gofail: var resizeFileError string
+			// return errors.New(resizeFileError)
 			if err := db.file.Truncate(int64(sz)); err != nil {
 				return fmt.Errorf("file resize error: %s", err)
 			}
@@ -1263,6 +1289,12 @@ var DefaultOptions = &Options{
 
 // Stats represents statistics about the database.
 type Stats struct {
+	// Put `TxStats` at the first field to ensure it's 64-bit aligned. Note
+	// that the first word in an allocated struct can be relied upon to be
+	// 64-bit aligned. Refer to https://pkg.go.dev/sync/atomic#pkg-note-BUG.
+	// Also refer to discussion in https://github.com/etcd-io/bbolt/issues/577.
+	TxStats TxStats // global, ongoing stats.
+
 	// Freelist stats
 	FreePageN     int // total number of free pages on the freelist
 	PendingPageN  int // total number of pending pages on the freelist
@@ -1272,8 +1304,6 @@ type Stats struct {
 	// Transaction stats
 	TxN     int // total number of started read transactions
 	OpenTxN int // number of currently open read transactions
-
-	TxStats TxStats // global, ongoing stats.
 }
 
 // Sub calculates and returns the difference between two sets of database stats.

vendor/go.etcd.io/bbolt/freelist.go

@@ -252,6 +252,14 @@ func (f *freelist) rollback(txid txid) {
 	}
 	// Remove pages from pending list and mark as free if allocated by txid.
 	delete(f.pending, txid)
+
+	// Remove pgids which are allocated by this txid
+	for pgid, tid := range f.allocs {
+		if tid == txid {
+			delete(f.allocs, pgid)
+		}
+	}
+
 	f.mergeSpans(m)
 }
 
@@ -282,9 +290,8 @@ func (f *freelist) read(p *page) {
 	if count == 0 {
 		f.ids = nil
 	} else {
-		var ids []pgid
+		data := unsafeIndex(unsafe.Pointer(p), unsafe.Sizeof(*p), unsafe.Sizeof(pgid(0)), idx)
-		data := unsafeIndex(unsafe.Pointer(p), unsafe.Sizeof(*p), unsafe.Sizeof(ids[0]), idx)
+		ids := unsafe.Slice((*pgid)(data), count)
-		unsafeSlice(unsafe.Pointer(&ids), data, count)
 
 		// copy the ids, so we don't modify on the freelist page directly
 		idsCopy := make([]pgid, count)
@@ -322,15 +329,13 @@ func (f *freelist) write(p *page) error {
 		p.count = uint16(l)
 	} else if l < 0xFFFF {
 		p.count = uint16(l)
-		var ids []pgid
 		data := unsafeAdd(unsafe.Pointer(p), unsafe.Sizeof(*p))
-		unsafeSlice(unsafe.Pointer(&ids), data, l)
+		ids := unsafe.Slice((*pgid)(data), l)
 		f.copyall(ids)
 	} else {
 		p.count = 0xFFFF
-		var ids []pgid
 		data := unsafeAdd(unsafe.Pointer(p), unsafe.Sizeof(*p))
-		unsafeSlice(unsafe.Pointer(&ids), data, l+1)
+		ids := unsafe.Slice((*pgid)(data), l+1)
 		ids[0] = pgid(l)
 		f.copyall(ids[1:])
 	}

vendor/go.etcd.io/bbolt/page.go

@@ -74,9 +74,8 @@ func (p *page) leafPageElements() []leafPageElement {
 	if p.count == 0 {
 		return nil
 	}
-	var elems []leafPageElement
 	data := unsafeAdd(unsafe.Pointer(p), unsafe.Sizeof(*p))
-	unsafeSlice(unsafe.Pointer(&elems), data, int(p.count))
+	elems := unsafe.Slice((*leafPageElement)(data), int(p.count))
 	return elems
 }
 
@@ -91,9 +90,8 @@ func (p *page) branchPageElements() []branchPageElement {
 	if p.count == 0 {
 		return nil
 	}
-	var elems []branchPageElement
 	data := unsafeAdd(unsafe.Pointer(p), unsafe.Sizeof(*p))
-	unsafeSlice(unsafe.Pointer(&elems), data, int(p.count))
+	elems := unsafe.Slice((*branchPageElement)(data), int(p.count))
 	return elems
 }
 

vendor/go.etcd.io/bbolt/tx.go

@@ -1,6 +1,7 @@
 package bbolt
 
 import (
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -185,6 +186,10 @@ func (tx *Tx) Commit() error {
 
 	// If the high water mark has moved up then attempt to grow the database.
 	if tx.meta.pgid > opgid {
+		_ = errors.New("")
+		// gofail: var lackOfDiskSpace string
+		// tx.rollback()
+		// return errors.New(lackOfDiskSpace)
 		if err := tx.db.grow(int(tx.meta.pgid+1) * tx.db.pageSize); err != nil {
 			tx.rollback()
 			return err
@@ -470,6 +475,7 @@ func (tx *Tx) write() error {
 
 	// Ignore file sync if flag is set on DB.
 	if !tx.db.NoSync || IgnoreNoSync {
+		// gofail: var beforeSyncDataPages struct{}
 		if err := fdatasync(tx.db); err != nil {
 			return err
 		}
@@ -507,6 +513,7 @@ func (tx *Tx) writeMeta() error {
 		return err
 	}
 	if !tx.db.NoSync || IgnoreNoSync {
+		// gofail: var beforeSyncMetaPage struct{}
 		if err := fdatasync(tx.db); err != nil {
 			return err
 		}

vendor/go.etcd.io/bbolt/unsafe.go

@@ -1,7 +1,6 @@
 package bbolt
 
 import (
-	"reflect"
 	"unsafe"
 )
 
@@ -26,14 +25,3 @@ func unsafeByteSlice(base unsafe.Pointer, offset uintptr, i, j int) []byte {
 	// all), so this is believed to be correct.
 	return (*[maxAllocSize]byte)(unsafeAdd(base, offset))[i:j:j]
 }
-
-// unsafeSlice modifies the data, len, and cap of a slice variable pointed to by
-// the slice parameter.  This helper should be used over other direct
-// manipulation of reflect.SliceHeader to prevent misuse, namely, converting
-// from reflect.SliceHeader to a Go slice type.
-func unsafeSlice(slice, data unsafe.Pointer, len int) {
-	s := (*reflect.SliceHeader)(slice)
-	s.Data = uintptr(data)
-	s.Cap = len
-	s.Len = len
-}

vendor/golang.org/x/sys/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+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
@@ -10,7 +10,7 @@ notice, this list of conditions and the following disclaimer.
 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 Inc. nor the names of its
+   * 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.
 

vendor/golang.org/x/sys/internal/unsafeheader/unsafeheader.go

@@ -1,30 +0,0 @@
-// 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.
-
-// Package unsafeheader contains header declarations for the Go runtime's
-// slice and string implementations.
-//
-// This package allows x/sys to use types equivalent to
-// reflect.SliceHeader and reflect.StringHeader without introducing
-// a dependency on the (relatively heavy) "reflect" package.
-package unsafeheader
-
-import (
-	"unsafe"
-)
-
-// Slice is the runtime representation of a slice.
-// It cannot be used safely or portably and its representation may change in a later release.
-type Slice struct {
-	Data unsafe.Pointer
-	Len  int
-	Cap  int
-}
-
-// String is the runtime representation of a string.
-// It cannot be used safely or portably and its representation may change in a later release.
-type String struct {
-	Data unsafe.Pointer
-	Len  int
-}

vendor/golang.org/x/sys/unix/aliases.go

@@ -2,9 +2,7 @@
 // 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) && go1.9
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
-// +build go1.9
 
 package unix
 

vendor/golang.org/x/sys/unix/asm_aix_ppc64.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_386.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (freebsd || netbsd || openbsd) && gc
-// +build freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_amd64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || dragonfly || freebsd || netbsd || openbsd) && gc
-// +build darwin dragonfly freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_arm.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (freebsd || netbsd || openbsd) && gc
-// +build freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_arm64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_ppc64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_bsd_riscv64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin || freebsd || netbsd || openbsd) && gc
-// +build darwin freebsd netbsd openbsd
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_386.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_amd64.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_arm.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_arm64.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && arm64 && gc
-// +build linux
-// +build arm64
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_loong64.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && loong64 && gc
-// +build linux
-// +build loong64
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_mips64x.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (mips64 || mips64le) && gc
-// +build linux
-// +build mips64 mips64le
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_mipsx.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (mips || mipsle) && gc
-// +build linux
-// +build mips mipsle
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_ppc64x.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (ppc64 || ppc64le) && gc
-// +build linux
-// +build ppc64 ppc64le
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_riscv64.s

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build riscv64 && gc
-// +build riscv64
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_linux_s390x.s

@@ -3,9 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && s390x && gc
-// +build linux
-// +build s390x
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_openbsd_mips64.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_solaris_amd64.s

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gc
-// +build gc
 
 #include "textflag.h"
 

vendor/golang.org/x/sys/unix/asm_zos_s390x.s

@@ -3,18 +3,17 @@
 // license that can be found in the LICENSE file.
 
 //go:build zos && s390x && gc
-// +build zos
-// +build s390x
-// +build 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 EDCHPXV(x)        1016(x)       // in the CAA
+#define CEECAATHDID(x)     976(x) // in the CAA
-#define SAVSTACK_ASYNC(x)  336(x)       // in the LCA
+#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)
@@ -22,394 +21,125 @@
 #define SS_ERRNO(x)         16(x)
 #define SS_ERRNOJR(x)       20(x)
 
-#define LE_CALL BYTE $0x0D; BYTE $0x76; // BL R7, R6
+// Function Descriptor Offsets
+#define __errno  0x156*16
+#define __err2ad 0x16C*16
 
-TEXT ·clearErrno(SB),NOSPLIT,$0-0
+// Call Instructions
-	BL	addrerrno<>(SB)
+#define LE_CALL    BYTE $0x0D; BYTE $0x76 // BL R7, R6
-	MOVD	$0, 0(R3)
+#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
+TEXT addrerrno<>(SB), NOSPLIT|NOFRAME, $0-0
 	// Get library control area (LCA).
-	MOVW	PSALAA, R8
+	MOVW PSALAA, R8
-	MOVD	LCA64(R8), R8
+	MOVD LCA64(R8), R8
 
 	// Get __errno FuncDesc.
-	MOVD	CAA(R8), R9
+	MOVD CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
+	MOVD EDCHPXV(R9), R9
-	ADD	$(0x156*16), R9
+	ADD  $(__errno), R9
-	LMG	0(R9), R5, R6
+	LMG  0(R9), R5, R6
 
 	// Switch to saved LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
+	MOVD 0(R9), R4
-	MOVD	$0, 0(R9)
+	MOVD $0, 0(R9)
 
 	// Call __errno function.
 	LE_CALL
 	NOPH
 
 	// Switch back to Go stack.
-	XOR	R0, R0      // Restore R0 to $0.
+	XOR  R0, R0    // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
+	MOVD R4, 0(R9) // Save stack pointer.
-	RET
-
-TEXT ·syscall_syscall(SB),NOSPLIT,$0-56
-	BL	runtime·entersyscall(SB)
-	MOVD	a1+8(FP), R1
-	MOVD	a2+16(FP), R2
-	MOVD	a3+24(FP), R3
-
-	// Get library control area (LCA).
-	MOVW	PSALAA, R8
-	MOVD	LCA64(R8), R8
-
-	// Get function.
-	MOVD	CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
-	MOVD	trap+0(FP), R5
-	SLD	$4, R5
-	ADD	R5, R9
-	LMG	0(R9), R5, R6
-
-	// Restore LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
-	MOVD	$0, 0(R9)
-
-	// Call function.
-	LE_CALL
-	NOPH
-	XOR	R0, R0      // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
-
-	MOVD	R3, r1+32(FP)
-	MOVD	R0, r2+40(FP)
-	MOVD	R0, err+48(FP)
-	MOVW	R3, R4
-	CMP	R4, $-1
-	BNE	done
-	BL	addrerrno<>(SB)
-	MOVWZ	0(R3), R3
-	MOVD	R3, err+48(FP)
-done:
-	BL	runtime·exitsyscall(SB)
-	RET
-
-TEXT ·syscall_rawsyscall(SB),NOSPLIT,$0-56
-	MOVD	a1+8(FP), R1
-	MOVD	a2+16(FP), R2
-	MOVD	a3+24(FP), R3
-
-	// Get library control area (LCA).
-	MOVW	PSALAA, R8
-	MOVD	LCA64(R8), R8
-
-	// Get function.
-	MOVD	CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
-	MOVD	trap+0(FP), R5
-	SLD	$4, R5
-	ADD	R5, R9
-	LMG	0(R9), R5, R6
-
-	// Restore LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
-	MOVD	$0, 0(R9)
-
-	// Call function.
-	LE_CALL
-	NOPH
-	XOR	R0, R0      // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
-
-	MOVD	R3, r1+32(FP)
-	MOVD	R0, r2+40(FP)
-	MOVD	R0, err+48(FP)
-	MOVW	R3, R4
-	CMP	R4, $-1
-	BNE	done
-	BL	addrerrno<>(SB)
-	MOVWZ	0(R3), R3
-	MOVD	R3, err+48(FP)
-done:
-	RET
-
-TEXT ·syscall_syscall6(SB),NOSPLIT,$0-80
-	BL	runtime·entersyscall(SB)
-	MOVD	a1+8(FP), R1
-	MOVD	a2+16(FP), R2
-	MOVD	a3+24(FP), R3
-
-	// Get library control area (LCA).
-	MOVW	PSALAA, R8
-	MOVD	LCA64(R8), R8
-
-	// Get function.
-	MOVD	CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
-	MOVD	trap+0(FP), R5
-	SLD	$4, R5
-	ADD	R5, R9
-	LMG	0(R9), R5, R6
-
-	// Restore LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
-	MOVD	$0, 0(R9)
-
-	// Fill in parameter list.
-	MOVD	a4+32(FP), R12
-	MOVD	R12, (2176+24)(R4)
-	MOVD	a5+40(FP), R12
-	MOVD	R12, (2176+32)(R4)
-	MOVD	a6+48(FP), R12
-	MOVD	R12, (2176+40)(R4)
-
-	// Call function.
-	LE_CALL
-	NOPH
-	XOR	R0, R0      // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
-
-	MOVD	R3, r1+56(FP)
-	MOVD	R0, r2+64(FP)
-	MOVD	R0, err+72(FP)
-	MOVW	R3, R4
-	CMP	R4, $-1
-	BNE	done
-	BL	addrerrno<>(SB)
-	MOVWZ	0(R3), R3
-	MOVD	R3, err+72(FP)
-done:
-	BL	runtime·exitsyscall(SB)
-	RET
-
-TEXT ·syscall_rawsyscall6(SB),NOSPLIT,$0-80
-	MOVD	a1+8(FP), R1
-	MOVD	a2+16(FP), R2
-	MOVD	a3+24(FP), R3
-
-	// Get library control area (LCA).
-	MOVW	PSALAA, R8
-	MOVD	LCA64(R8), R8
-
-	// Get function.
-	MOVD	CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
-	MOVD	trap+0(FP), R5
-	SLD	$4, R5
-	ADD	R5, R9
-	LMG	0(R9), R5, R6
-
-	// Restore LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
-	MOVD	$0, 0(R9)
-
-	// Fill in parameter list.
-	MOVD	a4+32(FP), R12
-	MOVD	R12, (2176+24)(R4)
-	MOVD	a5+40(FP), R12
-	MOVD	R12, (2176+32)(R4)
-	MOVD	a6+48(FP), R12
-	MOVD	R12, (2176+40)(R4)
-
-	// Call function.
-	LE_CALL
-	NOPH
-	XOR	R0, R0      // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
-
-	MOVD	R3, r1+56(FP)
-	MOVD	R0, r2+64(FP)
-	MOVD	R0, err+72(FP)
-	MOVW	R3, R4
-	CMP	R4, $-1
-	BNE	done
-	BL	·rrno<>(SB)
-	MOVWZ	0(R3), R3
-	MOVD	R3, err+72(FP)
-done:
-	RET
-
-TEXT ·syscall_syscall9(SB),NOSPLIT,$0
-	BL	runtime·entersyscall(SB)
-	MOVD	a1+8(FP), R1
-	MOVD	a2+16(FP), R2
-	MOVD	a3+24(FP), R3
-
-	// Get library control area (LCA).
-	MOVW	PSALAA, R8
-	MOVD	LCA64(R8), R8
-
-	// Get function.
-	MOVD	CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
-	MOVD	trap+0(FP), R5
-	SLD	$4, R5
-	ADD	R5, R9
-	LMG	0(R9), R5, R6
-
-	// Restore LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
-	MOVD	$0, 0(R9)
-
-	// Fill in parameter list.
-	MOVD	a4+32(FP), R12
-	MOVD	R12, (2176+24)(R4)
-	MOVD	a5+40(FP), R12
-	MOVD	R12, (2176+32)(R4)
-	MOVD	a6+48(FP), R12
-	MOVD	R12, (2176+40)(R4)
-	MOVD	a7+56(FP), R12
-	MOVD	R12, (2176+48)(R4)
-	MOVD	a8+64(FP), R12
-	MOVD	R12, (2176+56)(R4)
-	MOVD	a9+72(FP), R12
-	MOVD	R12, (2176+64)(R4)
-
-	// Call function.
-	LE_CALL
-	NOPH
-	XOR	R0, R0      // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
-
-	MOVD	R3, r1+80(FP)
-	MOVD	R0, r2+88(FP)
-	MOVD	R0, err+96(FP)
-	MOVW	R3, R4
-	CMP	R4, $-1
-	BNE	done
-	BL	addrerrno<>(SB)
-	MOVWZ	0(R3), R3
-	MOVD	R3, err+96(FP)
-done:
-        BL	runtime·exitsyscall(SB)
-        RET
-
-TEXT ·syscall_rawsyscall9(SB),NOSPLIT,$0
-	MOVD	a1+8(FP), R1
-	MOVD	a2+16(FP), R2
-	MOVD	a3+24(FP), R3
-
-	// Get library control area (LCA).
-	MOVW	PSALAA, R8
-	MOVD	LCA64(R8), R8
-
-	// Get function.
-	MOVD	CAA(R8), R9
-	MOVD	EDCHPXV(R9), R9
-	MOVD	trap+0(FP), R5
-	SLD	$4, R5
-	ADD	R5, R9
-	LMG	0(R9), R5, R6
-
-	// Restore LE stack.
-	MOVD	SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R4
-	MOVD	$0, 0(R9)
-
-	// Fill in parameter list.
-	MOVD	a4+32(FP), R12
-	MOVD	R12, (2176+24)(R4)
-	MOVD	a5+40(FP), R12
-	MOVD	R12, (2176+32)(R4)
-	MOVD	a6+48(FP), R12
-	MOVD	R12, (2176+40)(R4)
-	MOVD	a7+56(FP), R12
-	MOVD	R12, (2176+48)(R4)
-	MOVD	a8+64(FP), R12
-	MOVD	R12, (2176+56)(R4)
-	MOVD	a9+72(FP), R12
-	MOVD	R12, (2176+64)(R4)
-
-	// Call function.
-	LE_CALL
-	NOPH
-	XOR	R0, R0      // Restore R0 to $0.
-	MOVD	R4, 0(R9)   // Save stack pointer.
-
-	MOVD	R3, r1+80(FP)
-	MOVD	R0, r2+88(FP)
-	MOVD	R0, err+96(FP)
-	MOVW	R3, R4
-	CMP	R4, $-1
-	BNE	done
-	BL	addrerrno<>(SB)
-	MOVWZ	0(R3), R3
-	MOVD	R3, err+96(FP)
-done:
 	RET
 
 // func svcCall(fnptr unsafe.Pointer, argv *unsafe.Pointer, dsa *uint64)
-TEXT ·svcCall(SB),NOSPLIT,$0
+TEXT ·svcCall(SB), NOSPLIT, $0
-	BL	runtime·save_g(SB)   // Save g and stack pointer
+	BL   runtime·save_g(SB)     // Save g and stack pointer
-	MOVW	PSALAA, R8
+	MOVW PSALAA, R8
-	MOVD	LCA64(R8), R8
+	MOVD LCA64(R8), R8
-	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD SAVSTACK_ASYNC(R8), R9
-	MOVD	R15, 0(R9)
+	MOVD R15, 0(R9)
 
-	MOVD	argv+8(FP), R1       // Move function arguments into registers
+	MOVD argv+8(FP), R1   // Move function arguments into registers
-	MOVD	dsa+16(FP), g
+	MOVD dsa+16(FP), g
-	MOVD	fnptr+0(FP), R15
+	MOVD fnptr+0(FP), R15
 
-	BYTE	$0x0D                // Branch to function
+	BYTE $0x0D // Branch to function
-	BYTE	$0xEF
+	BYTE $0xEF
 
-	BL	runtime·load_g(SB)   // Restore g and stack pointer
+	BL   runtime·load_g(SB)     // Restore g and stack pointer
-	MOVW	PSALAA, R8
+	MOVW PSALAA, R8
-	MOVD	LCA64(R8), R8
+	MOVD LCA64(R8), R8
-	MOVD	SAVSTACK_ASYNC(R8), R9
+	MOVD SAVSTACK_ASYNC(R8), R9
-	MOVD	0(R9), R15
+	MOVD 0(R9), R15
 
 	RET
 
 // func svcLoad(name *byte) unsafe.Pointer
-TEXT ·svcLoad(SB),NOSPLIT,$0
+TEXT ·svcLoad(SB), NOSPLIT, $0
-	MOVD	R15, R2          // Save go stack pointer
+	MOVD R15, R2         // Save go stack pointer
-	MOVD	name+0(FP), R0   // Move SVC args into registers
+	MOVD name+0(FP), R0  // Move SVC args into registers
-	MOVD	$0x80000000, R1
+	MOVD $0x80000000, R1
-	MOVD	$0, R15
+	MOVD $0, R15
-	BYTE	$0x0A            // SVC 08 LOAD
+	SVC_LOAD
-	BYTE	$0x08
+	MOVW R15, R3         // Save return code from SVC
-	MOVW	R15, R3          // Save return code from SVC
+	MOVD R2, R15         // Restore go stack pointer
-	MOVD	R2, R15          // Restore go stack pointer
+	CMP  R3, $0          // Check SVC return code
-	CMP	R3, $0           // Check SVC return code
+	BNE  error
-	BNE	error
 
-	MOVD	$-2, R3          // Reset last bit of entry point to zero
+	MOVD $-2, R3       // Reset last bit of entry point to zero
-	AND	R0, R3
+	AND  R0, R3
-	MOVD	R3, addr+8(FP)   // Return entry point returned by SVC
+	MOVD R3, ret+8(FP) // Return entry point returned by SVC
-	CMP	R0, R3           // Check if last bit of entry point was set
+	CMP  R0, R3        // Check if last bit of entry point was set
-	BNE	done
+	BNE  done
 
-	MOVD	R15, R2          // Save go stack pointer
+	MOVD R15, R2 // Save go stack pointer
-	MOVD	$0, R15          // Move SVC args into registers (entry point still in r0 from SVC 08)
+	MOVD $0, R15 // Move SVC args into registers (entry point still in r0 from SVC 08)
-	BYTE	$0x0A            // SVC 09 DELETE
+	SVC_DELETE
-	BYTE	$0x09
+	MOVD R2, R15 // Restore go stack pointer
-	MOVD	R2, R15          // Restore go stack pointer
 
 error:
-	MOVD	$0, addr+8(FP)   // Return 0 on failure
+	MOVD $0, ret+8(FP) // Return 0 on failure
+
 done:
-	XOR	R0, R0           // Reset r0 to 0
+	XOR R0, R0 // Reset r0 to 0
 	RET
 
 // func svcUnload(name *byte, fnptr unsafe.Pointer) int64
-TEXT ·svcUnload(SB),NOSPLIT,$0
+TEXT ·svcUnload(SB), NOSPLIT, $0
-	MOVD	R15, R2          // Save go stack pointer
+	MOVD R15, R2          // Save go stack pointer
-	MOVD	name+0(FP), R0   // Move SVC args into registers
+	MOVD name+0(FP), R0   // Move SVC args into registers
-	MOVD	addr+8(FP), R15
+	MOVD fnptr+8(FP), R15
-	BYTE	$0x0A            // SVC 09
+	SVC_DELETE
-	BYTE	$0x09
+	XOR  R0, R0           // Reset r0 to 0
-	XOR	R0, R0           // Reset r0 to 0
+	MOVD R15, R1          // Save SVC return code
-	MOVD	R15, R1          // Save SVC return code
+	MOVD R2, R15          // Restore go stack pointer
-	MOVD	R2, R15          // Restore go stack pointer
+	MOVD R1, ret+16(FP)   // Return SVC return code
-	MOVD	R1, rc+0(FP)     // Return SVC return code
 	RET
 
 // func gettid() uint64
@@ -420,7 +150,233 @@ TEXT ·gettid(SB), NOSPLIT, $0
 
 	// Get CEECAATHDID
 	MOVD CAA(R8), R9
-	MOVD 0x3D0(R9), 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

vendor/golang.org/x/sys/unix/bpxsvc_zos.go

@@ -0,0 +1,657 @@
+// 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
+}

vendor/golang.org/x/sys/unix/bpxsvc_zos.s

@@ -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

vendor/golang.org/x/sys/unix/cap_freebsd.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build freebsd
-// +build freebsd
 
 package unix
 

vendor/golang.org/x/sys/unix/constants.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package unix
 

vendor/golang.org/x/sys/unix/dev_aix_ppc.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix && ppc
-// +build aix,ppc
 
 // Functions to access/create device major and minor numbers matching the
 // encoding used by AIX.

vendor/golang.org/x/sys/unix/dev_aix_ppc64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix && ppc64
-// +build aix,ppc64
 
 // Functions to access/create device major and minor numbers matching the
 // encoding used AIX.

vendor/golang.org/x/sys/unix/dev_zos.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build zos && s390x
-// +build zos,s390x
 
 // Functions to access/create device major and minor numbers matching the
 // encoding used by z/OS.

vendor/golang.org/x/sys/unix/dirent.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package unix
 

vendor/golang.org/x/sys/unix/endian_big.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 //
 //go:build armbe || arm64be || m68k || mips || mips64 || mips64p32 || ppc || ppc64 || s390 || s390x || shbe || sparc || sparc64
-// +build armbe arm64be m68k mips mips64 mips64p32 ppc ppc64 s390 s390x shbe sparc sparc64
 
 package unix
 

vendor/golang.org/x/sys/unix/endian_little.go

@@ -3,7 +3,6 @@
 // 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
-// +build 386 amd64 amd64p32 alpha arm arm64 loong64 mipsle mips64le mips64p32le nios2 ppc64le riscv riscv64 sh
 
 package unix
 

vendor/golang.org/x/sys/unix/env_unix.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 // Unix environment variables.
 

vendor/golang.org/x/sys/unix/epoll_zos.go

@@ -1,221 +0,0 @@
-// 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
-// +build zos,s390x
-
-package unix
-
-import (
-	"sync"
-)
-
-// This file simulates epoll on z/OS using poll.
-
-// Analogous to epoll_event on Linux.
-// TODO(neeilan): Pad is because the Linux kernel expects a 96-bit struct. We never pass this to the kernel; remove?
-type EpollEvent struct {
-	Events uint32
-	Fd     int32
-	Pad    int32
-}
-
-const (
-	EPOLLERR      = 0x8
-	EPOLLHUP      = 0x10
-	EPOLLIN       = 0x1
-	EPOLLMSG      = 0x400
-	EPOLLOUT      = 0x4
-	EPOLLPRI      = 0x2
-	EPOLLRDBAND   = 0x80
-	EPOLLRDNORM   = 0x40
-	EPOLLWRBAND   = 0x200
-	EPOLLWRNORM   = 0x100
-	EPOLL_CTL_ADD = 0x1
-	EPOLL_CTL_DEL = 0x2
-	EPOLL_CTL_MOD = 0x3
-	// The following constants are part of the epoll API, but represent
-	// currently unsupported functionality on z/OS.
-	// EPOLL_CLOEXEC  = 0x80000
-	// EPOLLET        = 0x80000000
-	// EPOLLONESHOT   = 0x40000000
-	// EPOLLRDHUP     = 0x2000     // Typically used with edge-triggered notis
-	// EPOLLEXCLUSIVE = 0x10000000 // Exclusive wake-up mode
-	// EPOLLWAKEUP    = 0x20000000 // Relies on Linux's BLOCK_SUSPEND capability
-)
-
-// TODO(neeilan): We can eliminate these epToPoll / pToEpoll calls by using identical mask values for POLL/EPOLL
-// constants where possible The lower 16 bits of epoll events (uint32) can fit any system poll event (int16).
-
-// epToPollEvt converts epoll event field to poll equivalent.
-// In epoll, Events is a 32-bit field, while poll uses 16 bits.
-func epToPollEvt(events uint32) int16 {
-	var ep2p = map[uint32]int16{
-		EPOLLIN:  POLLIN,
-		EPOLLOUT: POLLOUT,
-		EPOLLHUP: POLLHUP,
-		EPOLLPRI: POLLPRI,
-		EPOLLERR: POLLERR,
-	}
-
-	var pollEvts int16 = 0
-	for epEvt, pEvt := range ep2p {
-		if (events & epEvt) != 0 {
-			pollEvts |= pEvt
-		}
-	}
-
-	return pollEvts
-}
-
-// pToEpollEvt converts 16 bit poll event bitfields to 32-bit epoll event fields.
-func pToEpollEvt(revents int16) uint32 {
-	var p2ep = map[int16]uint32{
-		POLLIN:  EPOLLIN,
-		POLLOUT: EPOLLOUT,
-		POLLHUP: EPOLLHUP,
-		POLLPRI: EPOLLPRI,
-		POLLERR: EPOLLERR,
-	}
-
-	var epollEvts uint32 = 0
-	for pEvt, epEvt := range p2ep {
-		if (revents & pEvt) != 0 {
-			epollEvts |= epEvt
-		}
-	}
-
-	return epollEvts
-}
-
-// Per-process epoll implementation.
-type epollImpl struct {
-	mu       sync.Mutex
-	epfd2ep  map[int]*eventPoll
-	nextEpfd int
-}
-
-// eventPoll holds a set of file descriptors being watched by the process. A process can have multiple epoll instances.
-// On Linux, this is an in-kernel data structure accessed through a fd.
-type eventPoll struct {
-	mu  sync.Mutex
-	fds map[int]*EpollEvent
-}
-
-// epoll impl for this process.
-var impl epollImpl = epollImpl{
-	epfd2ep:  make(map[int]*eventPoll),
-	nextEpfd: 0,
-}
-
-func (e *epollImpl) epollcreate(size int) (epfd int, err error) {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-	epfd = e.nextEpfd
-	e.nextEpfd++
-
-	e.epfd2ep[epfd] = &eventPoll{
-		fds: make(map[int]*EpollEvent),
-	}
-	return epfd, nil
-}
-
-func (e *epollImpl) epollcreate1(flag int) (fd int, err error) {
-	return e.epollcreate(4)
-}
-
-func (e *epollImpl) epollctl(epfd int, op int, fd int, event *EpollEvent) (err error) {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-
-	ep, ok := e.epfd2ep[epfd]
-	if !ok {
-
-		return EBADF
-	}
-
-	switch op {
-	case EPOLL_CTL_ADD:
-		// TODO(neeilan): When we make epfds and fds disjoint, detect epoll
-		// loops here (instances watching each other) and return ELOOP.
-		if _, ok := ep.fds[fd]; ok {
-			return EEXIST
-		}
-		ep.fds[fd] = event
-	case EPOLL_CTL_MOD:
-		if _, ok := ep.fds[fd]; !ok {
-			return ENOENT
-		}
-		ep.fds[fd] = event
-	case EPOLL_CTL_DEL:
-		if _, ok := ep.fds[fd]; !ok {
-			return ENOENT
-		}
-		delete(ep.fds, fd)
-
-	}
-	return nil
-}
-
-// Must be called while holding ep.mu
-func (ep *eventPoll) getFds() []int {
-	fds := make([]int, len(ep.fds))
-	for fd := range ep.fds {
-		fds = append(fds, fd)
-	}
-	return fds
-}
-
-func (e *epollImpl) epollwait(epfd int, events []EpollEvent, msec int) (n int, err error) {
-	e.mu.Lock() // in [rare] case of concurrent epollcreate + epollwait
-	ep, ok := e.epfd2ep[epfd]
-
-	if !ok {
-		e.mu.Unlock()
-		return 0, EBADF
-	}
-
-	pollfds := make([]PollFd, 4)
-	for fd, epollevt := range ep.fds {
-		pollfds = append(pollfds, PollFd{Fd: int32(fd), Events: epToPollEvt(epollevt.Events)})
-	}
-	e.mu.Unlock()
-
-	n, err = Poll(pollfds, msec)
-	if err != nil {
-		return n, err
-	}
-
-	i := 0
-	for _, pFd := range pollfds {
-		if pFd.Revents != 0 {
-			events[i] = EpollEvent{Fd: pFd.Fd, Events: pToEpollEvt(pFd.Revents)}
-			i++
-		}
-
-		if i == n {
-			break
-		}
-	}
-
-	return n, nil
-}
-
-func EpollCreate(size int) (fd int, err error) {
-	return impl.epollcreate(size)
-}
-
-func EpollCreate1(flag int) (fd int, err error) {
-	return impl.epollcreate1(flag)
-}
-
-func EpollCtl(epfd int, op int, fd int, event *EpollEvent) (err error) {
-	return impl.epollctl(epfd, op, fd, event)
-}
-
-// Because EpollWait mutates events, the caller is expected to coordinate
-// concurrent access if calling with the same epfd from multiple goroutines.
-func EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) {
-	return impl.epollwait(epfd, events, msec)
-}

vendor/golang.org/x/sys/unix/fcntl.go

@@ -2,8 +2,7 @@
 // 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 || openbsd
+//go:build dragonfly || freebsd || linux || netbsd
-// +build dragonfly freebsd linux netbsd openbsd
 
 package unix
 

vendor/golang.org/x/sys/unix/fcntl_linux_32bit.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (linux && 386) || (linux && arm) || (linux && mips) || (linux && mipsle) || (linux && ppc)
-// +build linux,386 linux,arm linux,mips linux,mipsle linux,ppc
 
 package unix
 

vendor/golang.org/x/sys/unix/fdset.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 package unix
 

vendor/golang.org/x/sys/unix/fstatfs_zos.go

@@ -1,164 +0,0 @@
-// 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
-// +build zos,s390x
-
-package unix
-
-import (
-	"unsafe"
-)
-
-// This file simulates fstatfs on z/OS using fstatvfs and w_getmntent.
-
-func Fstatfs(fd int, stat *Statfs_t) (err error) {
-	var stat_v Statvfs_t
-	err = Fstatvfs(fd, &stat_v)
-	if err == nil {
-		// populate stat
-		stat.Type = 0
-		stat.Bsize = stat_v.Bsize
-		stat.Blocks = stat_v.Blocks
-		stat.Bfree = stat_v.Bfree
-		stat.Bavail = stat_v.Bavail
-		stat.Files = stat_v.Files
-		stat.Ffree = stat_v.Ffree
-		stat.Fsid = stat_v.Fsid
-		stat.Namelen = stat_v.Namemax
-		stat.Frsize = stat_v.Frsize
-		stat.Flags = stat_v.Flag
-		for passn := 0; passn < 5; passn++ {
-			switch passn {
-			case 0:
-				err = tryGetmntent64(stat)
-				break
-			case 1:
-				err = tryGetmntent128(stat)
-				break
-			case 2:
-				err = tryGetmntent256(stat)
-				break
-			case 3:
-				err = tryGetmntent512(stat)
-				break
-			case 4:
-				err = tryGetmntent1024(stat)
-				break
-			default:
-				break
-			}
-			//proceed to return if: err is nil (found), err is nonnil but not ERANGE (another error occurred)
-			if err == nil || err != nil && err != ERANGE {
-				break
-			}
-		}
-	}
-	return err
-}
-
-func tryGetmntent64(stat *Statfs_t) (err error) {
-	var mnt_ent_buffer struct {
-		header       W_Mnth
-		filesys_info [64]W_Mntent
-	}
-	var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer))
-	fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size)
-	if err != nil {
-		return err
-	}
-	err = ERANGE //return ERANGE if no match is found in this batch
-	for i := 0; i < fs_count; i++ {
-		if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) {
-			stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0])
-			err = nil
-			break
-		}
-	}
-	return err
-}
-
-func tryGetmntent128(stat *Statfs_t) (err error) {
-	var mnt_ent_buffer struct {
-		header       W_Mnth
-		filesys_info [128]W_Mntent
-	}
-	var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer))
-	fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size)
-	if err != nil {
-		return err
-	}
-	err = ERANGE //return ERANGE if no match is found in this batch
-	for i := 0; i < fs_count; i++ {
-		if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) {
-			stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0])
-			err = nil
-			break
-		}
-	}
-	return err
-}
-
-func tryGetmntent256(stat *Statfs_t) (err error) {
-	var mnt_ent_buffer struct {
-		header       W_Mnth
-		filesys_info [256]W_Mntent
-	}
-	var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer))
-	fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size)
-	if err != nil {
-		return err
-	}
-	err = ERANGE //return ERANGE if no match is found in this batch
-	for i := 0; i < fs_count; i++ {
-		if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) {
-			stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0])
-			err = nil
-			break
-		}
-	}
-	return err
-}
-
-func tryGetmntent512(stat *Statfs_t) (err error) {
-	var mnt_ent_buffer struct {
-		header       W_Mnth
-		filesys_info [512]W_Mntent
-	}
-	var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer))
-	fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size)
-	if err != nil {
-		return err
-	}
-	err = ERANGE //return ERANGE if no match is found in this batch
-	for i := 0; i < fs_count; i++ {
-		if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) {
-			stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0])
-			err = nil
-			break
-		}
-	}
-	return err
-}
-
-func tryGetmntent1024(stat *Statfs_t) (err error) {
-	var mnt_ent_buffer struct {
-		header       W_Mnth
-		filesys_info [1024]W_Mntent
-	}
-	var buffer_size int = int(unsafe.Sizeof(mnt_ent_buffer))
-	fs_count, err := W_Getmntent((*byte)(unsafe.Pointer(&mnt_ent_buffer)), buffer_size)
-	if err != nil {
-		return err
-	}
-	err = ERANGE //return ERANGE if no match is found in this batch
-	for i := 0; i < fs_count; i++ {
-		if stat.Fsid == uint64(mnt_ent_buffer.filesys_info[i].Dev) {
-			stat.Type = uint32(mnt_ent_buffer.filesys_info[i].Fstname[0])
-			err = nil
-			break
-		}
-	}
-	return err
-}

vendor/golang.org/x/sys/unix/gccgo.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gccgo && !aix && !hurd
-// +build gccgo,!aix,!hurd
 
 package unix
 

vendor/golang.org/x/sys/unix/gccgo_c.c

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gccgo && !aix && !hurd
-// +build gccgo,!aix,!hurd
 
 #include <errno.h>
 #include <stdint.h>

vendor/golang.org/x/sys/unix/gccgo_linux_amd64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build gccgo && linux && amd64
-// +build gccgo,linux,amd64
 
 package unix
 

vendor/golang.org/x/sys/unix/ifreq_linux.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux
-// +build linux
 
 package unix
 

vendor/golang.org/x/sys/unix/ioctl_linux.go

@@ -231,3 +231,8 @@ func IoctlLoopGetStatus64(fd int) (*LoopInfo64, error) {
 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))
+}

vendor/golang.org/x/sys/unix/ioctl_signed.go

@@ -0,0 +1,69 @@
+// 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
+}

vendor/golang.org/x/sys/unix/ioctl_unsigned.go

@@ -2,8 +2,7 @@
 // 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 || hurd || linux || netbsd || openbsd || solaris
+//go:build darwin || dragonfly || freebsd || hurd || linux || netbsd || openbsd
-// +build aix darwin dragonfly freebsd hurd linux netbsd openbsd solaris
 
 package unix
 

vendor/golang.org/x/sys/unix/ioctl_zos.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build zos && s390x
-// +build zos,s390x
 
 package unix
 
@@ -17,14 +16,14 @@ import (
 
 // 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 {
+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 uint, value *Winsize) error {
+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))
@@ -33,7 +32,7 @@ func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
 // 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 uint, value *Termios) error {
+func IoctlSetTermios(fd int, req int, value *Termios) error {
 	if (req != TCSETS) && (req != TCSETSW) && (req != TCSETSF) {
 		return ENOSYS
 	}
@@ -47,13 +46,13 @@ func IoctlSetTermios(fd int, req uint, value *Termios) error {
 //
 // 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) {
+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 uint) (*Winsize, error) {
+func IoctlGetWinsize(fd int, req int) (*Winsize, error) {
 	var value Winsize
 	err := ioctlPtr(fd, req, unsafe.Pointer(&value))
 	return &value, err
@@ -62,7 +61,7 @@ func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
 // IoctlGetTermios performs an ioctl on fd with a *Termios.
 //
 // The req value is expected to be TCGETS
-func IoctlGetTermios(fd int, req uint) (*Termios, error) {
+func IoctlGetTermios(fd int, req int) (*Termios, error) {
 	var value Termios
 	if req != TCGETS {
 		return &value, ENOSYS

vendor/golang.org/x/sys/unix/mkall.sh

@@ -50,7 +50,7 @@ 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 -- "$0")/.." && /bin/pwd):/build generate:$GOOS
+	$cmd docker run --interactive --tty --volume $(cd -- "$(dirname -- "$0")/.." && pwd):/build generate:$GOOS
 	exit
 fi
 

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -58,6 +58,7 @@ includes_Darwin='
 #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>
@@ -66,6 +67,7 @@ includes_Darwin='
 #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>
@@ -203,6 +205,7 @@ struct ltchars {
 #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>
@@ -246,6 +249,7 @@ struct ltchars {
 #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>
@@ -260,6 +264,7 @@ struct ltchars {
 #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>
@@ -281,10 +286,6 @@ struct ltchars {
 #include <asm/termbits.h>
 #endif
 
-#ifndef MSG_FASTOPEN
-#define MSG_FASTOPEN    0x20000000
-#endif
-
 #ifndef PTRACE_GETREGS
 #define PTRACE_GETREGS	0xc
 #endif
@@ -293,14 +294,6 @@ struct ltchars {
 #define PTRACE_SETREGS	0xd
 #endif
 
-#ifndef SOL_NETLINK
-#define SOL_NETLINK	270
-#endif
-
-#ifndef SOL_SMC
-#define SOL_SMC 286
-#endif
-
 #ifdef SOL_BLUETOOTH
 // SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
 // but it is already in bluetooth_linux.go
@@ -317,10 +310,23 @@ struct ltchars {
 #undef TIPC_WAIT_FOREVER
 #define TIPC_WAIT_FOREVER 0xffffffff
 
-// Copied from linux/l2tp.h
+// Copied from linux/netfilter/nf_nat.h
-// Including linux/l2tp.h here causes conflicts between linux/in.h
+// Including linux/netfilter/nf_nat.h here causes conflicts between linux/in.h
-// and netinet/in.h included via net/route.h above.
+// and netinet/in.h.
-#define IPPROTO_L2TP		115
+#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.
@@ -517,10 +523,12 @@ ccflags="$@"
 		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
 		$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
 		$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
-		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL|TCPOPT)_/ ||
+		$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_/ ||
 		$2 ~ /^ICMPV?6?_(FILTER|SEC)/ ||
@@ -543,6 +551,7 @@ ccflags="$@"
 		$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/ ||
 		$2 ~ /^TIOC/ ||
@@ -557,7 +566,7 @@ ccflags="$@"
 		$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_]+/ ||
-		$2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+)$/ &&
+		$2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+|BPF_F_LINK)$/ &&
 		$2 ~ /^(BPF|DLT)_/ ||
 		$2 ~ /^AUDIT_/ ||
 		$2 ~ /^(CLOCK|TIMER)_/ ||
@@ -578,8 +587,9 @@ ccflags="$@"
 		$2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
 		$2 ~ /^KEYCTL_/ ||
 		$2 ~ /^PERF_/ ||
-		$2 ~ /^SECCOMP_MODE_/ ||
+		$2 ~ /^SECCOMP_/ ||
 		$2 ~ /^SEEK_/ ||
+		$2 ~ /^SCHED_/ ||
 		$2 ~ /^SPLICE_/ ||
 		$2 ~ /^SYNC_FILE_RANGE_/ ||
 		$2 !~ /IOC_MAGIC/ &&
@@ -598,6 +608,9 @@ ccflags="$@"
 		$2 ~ /^FSOPT_/ ||
 		$2 ~ /^WDIO[CFS]_/ ||
 		$2 ~ /^NFN/ ||
+		$2 !~ /^NFT_META_IIFTYPE/ &&
+		$2 ~ /^NFT_/ ||
+		$2 ~ /^NF_NAT_/ ||
 		$2 ~ /^XDP_/ ||
 		$2 ~ /^RWF_/ ||
 		$2 ~ /^(HDIO|WIN|SMART)_/ ||
@@ -621,7 +634,7 @@ ccflags="$@"
 		$2 ~ /^MEM/ ||
 		$2 ~ /^WG/ ||
 		$2 ~ /^FIB_RULE_/ ||
-		$2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
+		$2 ~ /^BLK[A-Z]*(GET$|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)}
 
@@ -659,7 +672,6 @@ echo '// mkerrors.sh' "$@"
 echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
 echo
 echo "//go:build ${GOARCH} && ${GOOS}"
-echo "// +build ${GOARCH},${GOOS}"
 echo
 go tool cgo -godefs -- "$@" _const.go >_error.out
 cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
@@ -738,7 +750,8 @@ main(void)
 		e = errors[i].num;
 		if(i > 0 && errors[i-1].num == e)
 			continue;
-		strcpy(buf, strerror(e));
+		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;
@@ -757,7 +770,8 @@ main(void)
 		e = signals[i].num;
 		if(i > 0 && signals[i-1].num == e)
 			continue;
-		strcpy(buf, strsignal(e));
+		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;

vendor/golang.org/x/sys/unix/mmap_nomremap.go

@@ -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,
+}

vendor/golang.org/x/sys/unix/mremap.go

@@ -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
+}

vendor/golang.org/x/sys/unix/pagesize_unix.go

@@ -2,8 +2,7 @@
 // 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
+//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 // For Unix, get the pagesize from the runtime.
 

vendor/golang.org/x/sys/unix/pledge_openbsd.go

@@ -8,54 +8,31 @@ import (
 	"errors"
 	"fmt"
 	"strconv"
-	"syscall"
-	"unsafe"
 )
 
 // Pledge implements the pledge syscall.
 //
-// The pledge syscall does not accept execpromises on OpenBSD releases
+// This changes both the promises and execpromises; use PledgePromises or
-// before 6.3.
+// PledgeExecpromises to only change the promises or execpromises
-//
+// respectively.
-// execpromises must be empty when Pledge is called on OpenBSD
-// releases predating 6.3, otherwise an error will be returned.
 //
 // For more information see pledge(2).
 func Pledge(promises, execpromises string) error {
-	maj, min, err := majmin()
+	if err := pledgeAvailable(); err != nil {
+		return err
+	}
+
+	pptr, err := BytePtrFromString(promises)
 	if err != nil {
 		return err
 	}
 
-	err = pledgeAvailable(maj, min, execpromises)
+	exptr, err := BytePtrFromString(execpromises)
 	if err != nil {
 		return err
 	}
 
-	pptr, err := syscall.BytePtrFromString(promises)
+	return pledge(pptr, exptr)
-	if err != nil {
-		return err
-	}
-
-	// This variable will hold either a nil unsafe.Pointer or
-	// an unsafe.Pointer to a string (execpromises).
-	var expr unsafe.Pointer
-
-	// If we're running on OpenBSD > 6.2, pass execpromises to the syscall.
-	if maj > 6 || (maj == 6 && min > 2) {
-		exptr, err := syscall.BytePtrFromString(execpromises)
-		if err != nil {
-			return err
-		}
-		expr = unsafe.Pointer(exptr)
-	}
-
-	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0)
-	if e != 0 {
-		return e
-	}
-
-	return nil
 }
 
 // PledgePromises implements the pledge syscall.
@@ -64,30 +41,16 @@ func Pledge(promises, execpromises string) error {
 //
 // For more information see pledge(2).
 func PledgePromises(promises string) error {
-	maj, min, err := majmin()
+	if err := pledgeAvailable(); err != nil {
+		return err
+	}
+
+	pptr, err := BytePtrFromString(promises)
 	if err != nil {
 		return err
 	}
 
-	err = pledgeAvailable(maj, min, "")
+	return pledge(pptr, nil)
-	if err != nil {
-		return err
-	}
-
-	// This variable holds the execpromises and is always nil.
-	var expr unsafe.Pointer
-
-	pptr, err := syscall.BytePtrFromString(promises)
-	if err != nil {
-		return err
-	}
-
-	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0)
-	if e != 0 {
-		return e
-	}
-
-	return nil
 }
 
 // PledgeExecpromises implements the pledge syscall.
@@ -96,30 +59,16 @@ func PledgePromises(promises string) error {
 //
 // For more information see pledge(2).
 func PledgeExecpromises(execpromises string) error {
-	maj, min, err := majmin()
+	if err := pledgeAvailable(); err != nil {
+		return err
+	}
+
+	exptr, err := BytePtrFromString(execpromises)
 	if err != nil {
 		return err
 	}
 
-	err = pledgeAvailable(maj, min, execpromises)
+	return pledge(nil, exptr)
-	if err != nil {
-		return err
-	}
-
-	// This variable holds the promises and is always nil.
-	var pptr unsafe.Pointer
-
-	exptr, err := syscall.BytePtrFromString(execpromises)
-	if err != nil {
-		return err
-	}
-
-	_, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(pptr), uintptr(unsafe.Pointer(exptr)), 0)
-	if e != 0 {
-		return e
-	}
-
-	return nil
 }
 
 // majmin returns major and minor version number for an OpenBSD system.
@@ -147,16 +96,15 @@ func majmin() (major int, minor int, err error) {
 
 // pledgeAvailable checks for availability of the pledge(2) syscall
 // based on the running OpenBSD version.
-func pledgeAvailable(maj, min int, execpromises string) error {
+func pledgeAvailable() error {
-	// If OpenBSD <= 5.9, pledge is not available.
+	maj, min, err := majmin()
-	if (maj == 5 && min != 9) || maj < 5 {
+	if err != nil {
-		return fmt.Errorf("pledge syscall is not available on OpenBSD %d.%d", maj, min)
+		return err
 	}
 
-	// If OpenBSD <= 6.2 and execpromises is not empty,
+	// Require OpenBSD 6.4 as a minimum.
-	// return an error - execpromises is not available before 6.3
+	if maj < 6 || (maj == 6 && min <= 3) {
-	if (maj < 6 || (maj == 6 && min <= 2)) && execpromises != "" {
+		return fmt.Errorf("cannot call Pledge on OpenBSD %d.%d", maj, min)
-		return fmt.Errorf("cannot use execpromises on OpenBSD %d.%d", maj, min)
 	}
 
 	return nil

vendor/golang.org/x/sys/unix/ptrace_darwin.go

@@ -3,16 +3,9 @@
 // license that can be found in the LICENSE file.
 
 //go:build darwin && !ios
-// +build darwin,!ios
 
 package unix
 
-import "unsafe"
-
 func ptrace(request int, pid int, addr uintptr, data uintptr) error {
 	return ptrace1(request, pid, addr, data)
 }
-
-func ptracePtr(request int, pid int, addr uintptr, data unsafe.Pointer) error {
-	return ptrace1Ptr(request, pid, addr, data)
-}

vendor/golang.org/x/sys/unix/ptrace_ios.go

@@ -3,16 +3,9 @@
 // license that can be found in the LICENSE file.
 
 //go:build ios
-// +build ios
 
 package unix
 
-import "unsafe"
-
 func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
 	return ENOTSUP
 }
-
-func ptracePtr(request int, pid int, addr uintptr, data unsafe.Pointer) (err error) {
-	return ENOTSUP
-}

vendor/golang.org/x/sys/unix/race.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build (darwin && race) || (linux && race) || (freebsd && race)
-// +build darwin,race linux,race freebsd,race
 
 package unix
 

vendor/golang.org/x/sys/unix/race0.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || (darwin && !race) || (linux && !race) || (freebsd && !race) || netbsd || openbsd || solaris || dragonfly || zos
-// +build aix darwin,!race linux,!race freebsd,!race netbsd openbsd solaris dragonfly zos
 
 package unix
 

vendor/golang.org/x/sys/unix/readdirent_getdents.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || dragonfly || freebsd || linux || netbsd || openbsd
-// +build aix dragonfly freebsd linux netbsd openbsd
 
 package unix
 

vendor/golang.org/x/sys/unix/readdirent_getdirentries.go

@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build darwin
+//go:build darwin || zos
-// +build darwin
 
 package unix
 

vendor/golang.org/x/sys/unix/sockcmsg_unix.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 // Socket control messages
 

vendor/golang.org/x/sys/unix/sockcmsg_unix_other.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin freebsd linux netbsd openbsd solaris zos
 
 package unix
 

vendor/golang.org/x/sys/unix/sockcmsg_zos.go

@@ -0,0 +1,58 @@
+// 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.
+
+// Socket control messages
+
+package unix
+
+import "unsafe"
+
+// UnixCredentials encodes credentials into a socket control message
+// for sending to another process. This can be used for
+// authentication.
+func UnixCredentials(ucred *Ucred) []byte {
+	b := make([]byte, CmsgSpace(SizeofUcred))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_SOCKET
+	h.Type = SCM_CREDENTIALS
+	h.SetLen(CmsgLen(SizeofUcred))
+	*(*Ucred)(h.data(0)) = *ucred
+	return b
+}
+
+// ParseUnixCredentials decodes a socket control message that contains
+// credentials in a Ucred structure. To receive such a message, the
+// SO_PASSCRED option must be enabled on the socket.
+func ParseUnixCredentials(m *SocketControlMessage) (*Ucred, error) {
+	if m.Header.Level != SOL_SOCKET {
+		return nil, EINVAL
+	}
+	if m.Header.Type != SCM_CREDENTIALS {
+		return nil, EINVAL
+	}
+	ucred := *(*Ucred)(unsafe.Pointer(&m.Data[0]))
+	return &ucred, nil
+}
+
+// PktInfo4 encodes Inet4Pktinfo into a socket control message of type IP_PKTINFO.
+func PktInfo4(info *Inet4Pktinfo) []byte {
+	b := make([]byte, CmsgSpace(SizeofInet4Pktinfo))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_IP
+	h.Type = IP_PKTINFO
+	h.SetLen(CmsgLen(SizeofInet4Pktinfo))
+	*(*Inet4Pktinfo)(h.data(0)) = *info
+	return b
+}
+
+// PktInfo6 encodes Inet6Pktinfo into a socket control message of type IPV6_PKTINFO.
+func PktInfo6(info *Inet6Pktinfo) []byte {
+	b := make([]byte, CmsgSpace(SizeofInet6Pktinfo))
+	h := (*Cmsghdr)(unsafe.Pointer(&b[0]))
+	h.Level = SOL_IPV6
+	h.Type = IPV6_PKTINFO
+	h.SetLen(CmsgLen(SizeofInet6Pktinfo))
+	*(*Inet6Pktinfo)(h.data(0)) = *info
+	return b
+}

vendor/golang.org/x/sys/unix/symaddr_zos_s390x.s

@@ -0,0 +1,75 @@
+// 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 && s390x && gc
+
+#include "textflag.h"
+
+//  provide the address of function variable to be fixed up.
+
+TEXT ·getPipe2Addr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Pipe2(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_FlockAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Flock(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_GetxattrAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Getxattr(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_NanosleepAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Nanosleep(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_SetxattrAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Setxattr(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_Wait4Addr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Wait4(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_MountAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Mount(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_UnmountAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Unmount(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_UtimesNanoAtAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·UtimesNanoAt(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_UtimesNanoAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·UtimesNano(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_MkfifoatAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Mkfifoat(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_ChtagAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Chtag(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+
+TEXT ·get_ReadlinkatAddr(SB), NOSPLIT|NOFRAME, $0-8
+	MOVD $·Readlinkat(SB), R8
+	MOVD R8, ret+0(FP)
+	RET
+	

vendor/golang.org/x/sys/unix/syscall.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
-// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris zos
 
 // Package unix contains an interface to the low-level operating system
 // primitives. OS details vary depending on the underlying system, and

vendor/golang.org/x/sys/unix/syscall_aix.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix
-// +build aix
 
 // Aix system calls.
 // This file is compiled as ordinary Go code,
@@ -107,7 +106,8 @@ func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	if n > 0 {
 		sl += _Socklen(n) + 1
 	}
-	if sa.raw.Path[0] == '@' {
+	if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {
+		// Check sl > 3 so we don't change unnamed socket behavior.
 		sa.raw.Path[0] = 0
 		// Don't count trailing NUL for abstract address.
 		sl--
@@ -408,8 +408,8 @@ func (w WaitStatus) CoreDump() bool { return w&0x80 == 0x80 }
 
 func (w WaitStatus) TrapCause() int { return -1 }
 
-//sys	ioctl(fd int, req uint, arg uintptr) (err error)
+//sys	ioctl(fd int, req int, arg uintptr) (err error)
-//sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = ioctl
+//sys	ioctlPtr(fd int, req int, arg unsafe.Pointer) (err error) = ioctl
 
 // fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
 // There is no way to create a custom fcntl and to keep //sys fcntl easily,
@@ -487,8 +487,6 @@ func Fsync(fd int) error {
 //sys	Unlinkat(dirfd int, path string, flags int) (err error)
 //sys	Ustat(dev int, ubuf *Ustat_t) (err error)
 //sys	write(fd int, p []byte) (n int, err error)
-//sys	readlen(fd int, p *byte, np int) (n int, err error) = read
-//sys	writelen(fd int, p *byte, np int) (n int, err error) = write
 
 //sys	Dup2(oldfd int, newfd int) (err error)
 //sys	Fadvise(fd int, offset int64, length int64, advice int) (err error) = posix_fadvise64
@@ -535,21 +533,6 @@ func Fsync(fd int) error {
 //sys	sendmsg(s int, msg *Msghdr, flags int) (n int, err error) = nsendmsg
 
 //sys	munmap(addr uintptr, length uintptr) (err error)
-
-var mapper = &mmapper{
-	active: make(map[*byte][]byte),
-	mmap:   mmap,
-	munmap: munmap,
-}
-
-func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
-	return mapper.Mmap(fd, offset, length, prot, flags)
-}
-
-func Munmap(b []byte) (err error) {
-	return mapper.Munmap(b)
-}
-
 //sys	Madvise(b []byte, advice int) (err error)
 //sys	Mprotect(b []byte, prot int) (err error)
 //sys	Mlock(b []byte) (err error)

vendor/golang.org/x/sys/unix/syscall_aix_ppc.go

@@ -3,12 +3,10 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix && ppc
-// +build aix,ppc
 
 package unix
 
 //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error) = getrlimit64
-//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error) = setrlimit64
 //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek64
 
 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)

vendor/golang.org/x/sys/unix/syscall_aix_ppc64.go

@@ -3,12 +3,10 @@
 // license that can be found in the LICENSE file.
 
 //go:build aix && ppc64
-// +build aix,ppc64
 
 package unix
 
 //sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
-//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
 //sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
 
 //sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64

vendor/golang.org/x/sys/unix/syscall_bsd.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build darwin || dragonfly || freebsd || netbsd || openbsd
-// +build darwin dragonfly freebsd netbsd openbsd
 
 // BSD system call wrappers shared by *BSD based systems
 // including OS X (Darwin) and FreeBSD.  Like the other
@@ -317,7 +316,7 @@ func GetsockoptString(fd, level, opt int) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	return string(buf[:vallen-1]), nil
+	return ByteSliceToString(buf[:vallen]), nil
 }
 
 //sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
@@ -601,20 +600,6 @@ func Poll(fds []PollFd, timeout int) (n int, err error) {
 //	Gethostuuid(uuid *byte, timeout *Timespec) (err error)
 //	Ptrace(req int, pid int, addr uintptr, data int) (ret uintptr, err error)
 
-var mapper = &mmapper{
-	active: make(map[*byte][]byte),
-	mmap:   mmap,
-	munmap: munmap,
-}
-
-func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
-	return mapper.Mmap(fd, offset, length, prot, flags)
-}
-
-func Munmap(b []byte) (err error) {
-	return mapper.Munmap(b)
-}
-
 //sys	Madvise(b []byte, behav int) (err error)
 //sys	Mlock(b []byte) (err error)
 //sys	Mlockall(flags int) (err error)

vendor/golang.org/x/sys/unix/syscall_darwin.go

@@ -402,6 +402,18 @@ func IoctlSetIfreqMTU(fd int, ifreq *IfreqMTU) error {
 	return ioctlPtr(fd, SIOCSIFMTU, unsafe.Pointer(ifreq))
 }
 
+//sys	renamexNp(from string, to string, flag uint32) (err error)
+
+func RenamexNp(from string, to string, flag uint32) (err error) {
+	return renamexNp(from, to, flag)
+}
+
+//sys	renameatxNp(fromfd int, from string, tofd int, to string, flag uint32) (err error)
+
+func RenameatxNp(fromfd int, from string, tofd int, to string, flag uint32) (err error) {
+	return renameatxNp(fromfd, from, tofd, to, flag)
+}
+
 //sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error) = SYS_SYSCTL
 
 func Uname(uname *Utsname) error {
@@ -510,30 +522,48 @@ func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) {
 		return nil, err
 	}
 
-	// Find size.
+	for {
-	n := uintptr(0)
+		// Find size.
-	if err := sysctl(mib, nil, &n, nil, 0); err != nil {
+		n := uintptr(0)
-		return nil, err
+		if err := sysctl(mib, nil, &n, nil, 0); err != nil {
-	}
+			return nil, err
-	if n == 0 {
+		}
-		return nil, nil
+		if n == 0 {
-	}
+			return nil, nil
-	if n%SizeofKinfoProc != 0 {
+		}
-		return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc)
+		if n%SizeofKinfoProc != 0 {
-	}
+			return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc)
+		}
 
-	// Read into buffer of that size.
+		// Read into buffer of that size.
-	buf := make([]KinfoProc, n/SizeofKinfoProc)
+		buf := make([]KinfoProc, n/SizeofKinfoProc)
-	if err := sysctl(mib, (*byte)(unsafe.Pointer(&buf[0])), &n, nil, 0); err != nil {
+		if err := sysctl(mib, (*byte)(unsafe.Pointer(&buf[0])), &n, nil, 0); err != nil {
-		return nil, err
+			if err == ENOMEM {
-	}
+				// Process table grew. Try again.
-	if n%SizeofKinfoProc != 0 {
+				continue
-		return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc)
+			}
-	}
+			return nil, err
+		}
+		if n%SizeofKinfoProc != 0 {
+			return nil, fmt.Errorf("sysctl() returned a size of %d, which is not a multiple of %d", n, SizeofKinfoProc)
+		}
 
-	// The actual call may return less than the original reported required
+		// The actual call may return less than the original reported required
-	// size so ensure we deal with that.
+		// size so ensure we deal with that.
-	return buf[:n/SizeofKinfoProc], nil
+		return buf[:n/SizeofKinfoProc], nil
+	}
+}
+
+//sys	pthread_chdir_np(path string) (err error)
+
+func PthreadChdir(path string) (err error) {
+	return pthread_chdir_np(path)
+}
+
+//sys	pthread_fchdir_np(fd int) (err error)
+
+func PthreadFchdir(fd int) (err error) {
+	return pthread_fchdir_np(fd)
 }
 
 //sys	sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error)
@@ -613,6 +643,7 @@ func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) {
 //sys	Rmdir(path string) (err error)
 //sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK
 //sys	Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)
+//sys	Setattrlist(path string, attrlist *Attrlist, attrBuf []byte, options int) (err error)
 //sys	Setegid(egid int) (err error)
 //sysnb	Seteuid(euid int) (err error)
 //sysnb	Setgid(gid int) (err error)
@@ -622,7 +653,6 @@ func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) {
 //sys	Setprivexec(flag int) (err error)
 //sysnb	Setregid(rgid int, egid int) (err error)
 //sysnb	Setreuid(ruid int, euid int) (err error)
-//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
 //sysnb	Setsid() (pid int, err error)
 //sysnb	Settimeofday(tp *Timeval) (err error)
 //sysnb	Setuid(uid int) (err error)
@@ -638,190 +668,3 @@ func SysctlKinfoProcSlice(name string, args ...int) ([]KinfoProc, error) {
 //sys	write(fd int, p []byte) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
 //sys	munmap(addr uintptr, length uintptr) (err error)
-//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
-//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
-
-/*
- * Unimplemented
- */
-// Profil
-// Sigaction
-// Sigprocmask
-// Getlogin
-// Sigpending
-// Sigaltstack
-// Ioctl
-// Reboot
-// Execve
-// Vfork
-// Sbrk
-// Sstk
-// Ovadvise
-// Mincore
-// Setitimer
-// Swapon
-// Select
-// Sigsuspend
-// Readv
-// Writev
-// Nfssvc
-// Getfh
-// Quotactl
-// Csops
-// Waitid
-// Add_profil
-// Kdebug_trace
-// Sigreturn
-// Atsocket
-// Kqueue_from_portset_np
-// Kqueue_portset
-// Getattrlist
-// Setattrlist
-// Getdirentriesattr
-// Searchfs
-// Delete
-// Copyfile
-// Watchevent
-// Waitevent
-// Modwatch
-// Fsctl
-// Initgroups
-// Posix_spawn
-// Nfsclnt
-// Fhopen
-// Minherit
-// Semsys
-// Msgsys
-// Shmsys
-// Semctl
-// Semget
-// Semop
-// Msgctl
-// Msgget
-// Msgsnd
-// Msgrcv
-// Shm_open
-// Shm_unlink
-// Sem_open
-// Sem_close
-// Sem_unlink
-// Sem_wait
-// Sem_trywait
-// Sem_post
-// Sem_getvalue
-// Sem_init
-// Sem_destroy
-// Open_extended
-// Umask_extended
-// Stat_extended
-// Lstat_extended
-// Fstat_extended
-// Chmod_extended
-// Fchmod_extended
-// Access_extended
-// Settid
-// Gettid
-// Setsgroups
-// Getsgroups
-// Setwgroups
-// Getwgroups
-// Mkfifo_extended
-// Mkdir_extended
-// Identitysvc
-// Shared_region_check_np
-// Shared_region_map_np
-// __pthread_mutex_destroy
-// __pthread_mutex_init
-// __pthread_mutex_lock
-// __pthread_mutex_trylock
-// __pthread_mutex_unlock
-// __pthread_cond_init
-// __pthread_cond_destroy
-// __pthread_cond_broadcast
-// __pthread_cond_signal
-// Setsid_with_pid
-// __pthread_cond_timedwait
-// Aio_fsync
-// Aio_return
-// Aio_suspend
-// Aio_cancel
-// Aio_error
-// Aio_read
-// Aio_write
-// Lio_listio
-// __pthread_cond_wait
-// Iopolicysys
-// __pthread_kill
-// __pthread_sigmask
-// __sigwait
-// __disable_threadsignal
-// __pthread_markcancel
-// __pthread_canceled
-// __semwait_signal
-// Proc_info
-// sendfile
-// Stat64_extended
-// Lstat64_extended
-// Fstat64_extended
-// __pthread_chdir
-// __pthread_fchdir
-// Audit
-// Auditon
-// Getauid
-// Setauid
-// Getaudit
-// Setaudit
-// Getaudit_addr
-// Setaudit_addr
-// Auditctl
-// Bsdthread_create
-// Bsdthread_terminate
-// Stack_snapshot
-// Bsdthread_register
-// Workq_open
-// Workq_ops
-// __mac_execve
-// __mac_syscall
-// __mac_get_file
-// __mac_set_file
-// __mac_get_link
-// __mac_set_link
-// __mac_get_proc
-// __mac_set_proc
-// __mac_get_fd
-// __mac_set_fd
-// __mac_get_pid
-// __mac_get_lcid
-// __mac_get_lctx
-// __mac_set_lctx
-// Setlcid
-// Read_nocancel
-// Write_nocancel
-// Open_nocancel
-// Close_nocancel
-// Wait4_nocancel
-// Recvmsg_nocancel
-// Sendmsg_nocancel
-// Recvfrom_nocancel
-// Accept_nocancel
-// Fcntl_nocancel
-// Select_nocancel
-// Fsync_nocancel
-// Connect_nocancel
-// Sigsuspend_nocancel
-// Readv_nocancel
-// Writev_nocancel
-// Sendto_nocancel
-// Pread_nocancel
-// Pwrite_nocancel
-// Waitid_nocancel
-// Poll_nocancel
-// Msgsnd_nocancel
-// Msgrcv_nocancel
-// Sem_wait_nocancel
-// Aio_suspend_nocancel
-// __sigwait_nocancel
-// __semwait_signal_nocancel
-// __mac_mount
-// __mac_get_mount
-// __mac_getfsstat

vendor/golang.org/x/sys/unix/syscall_darwin_amd64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build amd64 && darwin
-// +build amd64,darwin
 
 package unix
 
@@ -47,6 +46,5 @@ func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr,
 //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT64
 //sys	Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
 //sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
-//sys	ptrace1Ptr(request int, pid int, addr unsafe.Pointer, data uintptr) (err error) = SYS_ptrace
 //sys	Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
 //sys	Statfs(path string, stat *Statfs_t) (err error) = SYS_STATFS64

vendor/golang.org/x/sys/unix/syscall_darwin_arm64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build arm64 && darwin
-// +build arm64,darwin
 
 package unix
 
@@ -47,6 +46,5 @@ func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr,
 //sys	getfsstat(buf unsafe.Pointer, size uintptr, flags int) (n int, err error) = SYS_GETFSSTAT
 //sys	Lstat(path string, stat *Stat_t) (err error)
 //sys	ptrace1(request int, pid int, addr uintptr, data uintptr) (err error) = SYS_ptrace
-//sys	ptrace1Ptr(request int, pid int, addr unsafe.Pointer, data uintptr) (err error) = SYS_ptrace
 //sys	Stat(path string, stat *Stat_t) (err error)
 //sys	Statfs(path string, stat *Statfs_t) (err error)

vendor/golang.org/x/sys/unix/syscall_darwin_libSystem.go

@@ -2,8 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-//go:build darwin && go1.12
+//go:build darwin
-// +build darwin,go1.12
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_dragonfly.go

@@ -326,7 +326,6 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sysnb	Setreuid(ruid int, euid int) (err error)
 //sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
 //sysnb	Setresuid(ruid int, euid int, suid int) (err error)
-//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
 //sysnb	Setsid() (pid int, err error)
 //sysnb	Settimeofday(tp *Timeval) (err error)
 //sysnb	Setuid(uid int) (err error)
@@ -344,203 +343,5 @@ func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
 //sys	write(fd int, p []byte) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
 //sys	munmap(addr uintptr, length uintptr) (err error)
-//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
-//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
 //sys	accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
 //sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
-
-/*
- * Unimplemented
- * TODO(jsing): Update this list for DragonFly.
- */
-// Profil
-// Sigaction
-// Sigprocmask
-// Getlogin
-// Sigpending
-// Sigaltstack
-// Reboot
-// Execve
-// Vfork
-// Sbrk
-// Sstk
-// Ovadvise
-// Mincore
-// Setitimer
-// Swapon
-// Select
-// Sigsuspend
-// Readv
-// Writev
-// Nfssvc
-// Getfh
-// Quotactl
-// Mount
-// Csops
-// Waitid
-// Add_profil
-// Kdebug_trace
-// Sigreturn
-// Atsocket
-// Kqueue_from_portset_np
-// Kqueue_portset
-// Getattrlist
-// Setattrlist
-// Getdirentriesattr
-// Searchfs
-// Delete
-// Copyfile
-// Watchevent
-// Waitevent
-// Modwatch
-// Getxattr
-// Fgetxattr
-// Setxattr
-// Fsetxattr
-// Removexattr
-// Fremovexattr
-// Listxattr
-// Flistxattr
-// Fsctl
-// Initgroups
-// Posix_spawn
-// Nfsclnt
-// Fhopen
-// Minherit
-// Semsys
-// Msgsys
-// Shmsys
-// Semctl
-// Semget
-// Semop
-// Msgctl
-// Msgget
-// Msgsnd
-// Msgrcv
-// Shmat
-// Shmctl
-// Shmdt
-// Shmget
-// Shm_open
-// Shm_unlink
-// Sem_open
-// Sem_close
-// Sem_unlink
-// Sem_wait
-// Sem_trywait
-// Sem_post
-// Sem_getvalue
-// Sem_init
-// Sem_destroy
-// Open_extended
-// Umask_extended
-// Stat_extended
-// Lstat_extended
-// Fstat_extended
-// Chmod_extended
-// Fchmod_extended
-// Access_extended
-// Settid
-// Gettid
-// Setsgroups
-// Getsgroups
-// Setwgroups
-// Getwgroups
-// Mkfifo_extended
-// Mkdir_extended
-// Identitysvc
-// Shared_region_check_np
-// Shared_region_map_np
-// __pthread_mutex_destroy
-// __pthread_mutex_init
-// __pthread_mutex_lock
-// __pthread_mutex_trylock
-// __pthread_mutex_unlock
-// __pthread_cond_init
-// __pthread_cond_destroy
-// __pthread_cond_broadcast
-// __pthread_cond_signal
-// Setsid_with_pid
-// __pthread_cond_timedwait
-// Aio_fsync
-// Aio_return
-// Aio_suspend
-// Aio_cancel
-// Aio_error
-// Aio_read
-// Aio_write
-// Lio_listio
-// __pthread_cond_wait
-// Iopolicysys
-// __pthread_kill
-// __pthread_sigmask
-// __sigwait
-// __disable_threadsignal
-// __pthread_markcancel
-// __pthread_canceled
-// __semwait_signal
-// Proc_info
-// Stat64_extended
-// Lstat64_extended
-// Fstat64_extended
-// __pthread_chdir
-// __pthread_fchdir
-// Audit
-// Auditon
-// Getauid
-// Setauid
-// Getaudit
-// Setaudit
-// Getaudit_addr
-// Setaudit_addr
-// Auditctl
-// Bsdthread_create
-// Bsdthread_terminate
-// Stack_snapshot
-// Bsdthread_register
-// Workq_open
-// Workq_ops
-// __mac_execve
-// __mac_syscall
-// __mac_get_file
-// __mac_set_file
-// __mac_get_link
-// __mac_set_link
-// __mac_get_proc
-// __mac_set_proc
-// __mac_get_fd
-// __mac_set_fd
-// __mac_get_pid
-// __mac_get_lcid
-// __mac_get_lctx
-// __mac_set_lctx
-// Setlcid
-// Read_nocancel
-// Write_nocancel
-// Open_nocancel
-// Close_nocancel
-// Wait4_nocancel
-// Recvmsg_nocancel
-// Sendmsg_nocancel
-// Recvfrom_nocancel
-// Accept_nocancel
-// Fcntl_nocancel
-// Select_nocancel
-// Fsync_nocancel
-// Connect_nocancel
-// Sigsuspend_nocancel
-// Readv_nocancel
-// Writev_nocancel
-// Sendto_nocancel
-// Pread_nocancel
-// Pwrite_nocancel
-// Waitid_nocancel
-// Msgsnd_nocancel
-// Msgrcv_nocancel
-// Sem_wait_nocancel
-// Aio_suspend_nocancel
-// __sigwait_nocancel
-// __semwait_signal_nocancel
-// __mac_mount
-// __mac_get_mount
-// __mac_getfsstat

vendor/golang.org/x/sys/unix/syscall_dragonfly_amd64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build amd64 && dragonfly
-// +build amd64,dragonfly
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_freebsd.go

@@ -13,6 +13,7 @@
 package unix
 
 import (
+	"errors"
 	"sync"
 	"unsafe"
 )
@@ -169,25 +170,26 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
 func Uname(uname *Utsname) error {
 	mib := []_C_int{CTL_KERN, KERN_OSTYPE}
 	n := unsafe.Sizeof(uname.Sysname)
-	if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
+	// Suppress ENOMEM errors to be compatible with the C library __xuname() implementation.
+	if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) {
 		return err
 	}
 
 	mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
 	n = unsafe.Sizeof(uname.Nodename)
-	if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
+	if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) {
 		return err
 	}
 
 	mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
 	n = unsafe.Sizeof(uname.Release)
-	if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
+	if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) {
 		return err
 	}
 
 	mib = []_C_int{CTL_KERN, KERN_VERSION}
 	n = unsafe.Sizeof(uname.Version)
-	if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
+	if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) {
 		return err
 	}
 
@@ -205,7 +207,7 @@ func Uname(uname *Utsname) error {
 
 	mib = []_C_int{CTL_HW, HW_MACHINE}
 	n = unsafe.Sizeof(uname.Machine)
-	if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
+	if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil && !errors.Is(err, ENOMEM) {
 		return err
 	}
 
@@ -433,7 +435,6 @@ func Dup3(oldfd, newfd, flags int) error {
 //sysnb	Setreuid(ruid int, euid int) (err error)
 //sysnb	Setresgid(rgid int, egid int, sgid int) (err error)
 //sysnb	Setresuid(ruid int, euid int, suid int) (err error)
-//sysnb	Setrlimit(which int, lim *Rlimit) (err error)
 //sysnb	Setsid() (pid int, err error)
 //sysnb	Settimeofday(tp *Timeval) (err error)
 //sysnb	Setuid(uid int) (err error)
@@ -450,197 +451,5 @@ func Dup3(oldfd, newfd, flags int) error {
 //sys	write(fd int, p []byte) (n int, err error)
 //sys	mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error)
 //sys	munmap(addr uintptr, length uintptr) (err error)
-//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ
-//sys	writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE
 //sys	accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error)
 //sys	utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error)
-
-/*
- * Unimplemented
- */
-// Profil
-// Sigaction
-// Sigprocmask
-// Getlogin
-// Sigpending
-// Sigaltstack
-// Ioctl
-// Reboot
-// Execve
-// Vfork
-// Sbrk
-// Sstk
-// Ovadvise
-// Mincore
-// Setitimer
-// Swapon
-// Select
-// Sigsuspend
-// Readv
-// Writev
-// Nfssvc
-// Getfh
-// Quotactl
-// Mount
-// Csops
-// Waitid
-// Add_profil
-// Kdebug_trace
-// Sigreturn
-// Atsocket
-// Kqueue_from_portset_np
-// Kqueue_portset
-// Getattrlist
-// Setattrlist
-// Getdents
-// Getdirentriesattr
-// Searchfs
-// Delete
-// Copyfile
-// Watchevent
-// Waitevent
-// Modwatch
-// Fsctl
-// Initgroups
-// Posix_spawn
-// Nfsclnt
-// Fhopen
-// Minherit
-// Semsys
-// Msgsys
-// Shmsys
-// Semctl
-// Semget
-// Semop
-// Msgctl
-// Msgget
-// Msgsnd
-// Msgrcv
-// Shmat
-// Shmctl
-// Shmdt
-// Shmget
-// Shm_open
-// Shm_unlink
-// Sem_open
-// Sem_close
-// Sem_unlink
-// Sem_wait
-// Sem_trywait
-// Sem_post
-// Sem_getvalue
-// Sem_init
-// Sem_destroy
-// Open_extended
-// Umask_extended
-// Stat_extended
-// Lstat_extended
-// Fstat_extended
-// Chmod_extended
-// Fchmod_extended
-// Access_extended
-// Settid
-// Gettid
-// Setsgroups
-// Getsgroups
-// Setwgroups
-// Getwgroups
-// Mkfifo_extended
-// Mkdir_extended
-// Identitysvc
-// Shared_region_check_np
-// Shared_region_map_np
-// __pthread_mutex_destroy
-// __pthread_mutex_init
-// __pthread_mutex_lock
-// __pthread_mutex_trylock
-// __pthread_mutex_unlock
-// __pthread_cond_init
-// __pthread_cond_destroy
-// __pthread_cond_broadcast
-// __pthread_cond_signal
-// Setsid_with_pid
-// __pthread_cond_timedwait
-// Aio_fsync
-// Aio_return
-// Aio_suspend
-// Aio_cancel
-// Aio_error
-// Aio_read
-// Aio_write
-// Lio_listio
-// __pthread_cond_wait
-// Iopolicysys
-// __pthread_kill
-// __pthread_sigmask
-// __sigwait
-// __disable_threadsignal
-// __pthread_markcancel
-// __pthread_canceled
-// __semwait_signal
-// Proc_info
-// Stat64_extended
-// Lstat64_extended
-// Fstat64_extended
-// __pthread_chdir
-// __pthread_fchdir
-// Audit
-// Auditon
-// Getauid
-// Setauid
-// Getaudit
-// Setaudit
-// Getaudit_addr
-// Setaudit_addr
-// Auditctl
-// Bsdthread_create
-// Bsdthread_terminate
-// Stack_snapshot
-// Bsdthread_register
-// Workq_open
-// Workq_ops
-// __mac_execve
-// __mac_syscall
-// __mac_get_file
-// __mac_set_file
-// __mac_get_link
-// __mac_set_link
-// __mac_get_proc
-// __mac_set_proc
-// __mac_get_fd
-// __mac_set_fd
-// __mac_get_pid
-// __mac_get_lcid
-// __mac_get_lctx
-// __mac_set_lctx
-// Setlcid
-// Read_nocancel
-// Write_nocancel
-// Open_nocancel
-// Close_nocancel
-// Wait4_nocancel
-// Recvmsg_nocancel
-// Sendmsg_nocancel
-// Recvfrom_nocancel
-// Accept_nocancel
-// Fcntl_nocancel
-// Select_nocancel
-// Fsync_nocancel
-// Connect_nocancel
-// Sigsuspend_nocancel
-// Readv_nocancel
-// Writev_nocancel
-// Sendto_nocancel
-// Pread_nocancel
-// Pwrite_nocancel
-// Waitid_nocancel
-// Poll_nocancel
-// Msgsnd_nocancel
-// Msgrcv_nocancel
-// Sem_wait_nocancel
-// Aio_suspend_nocancel
-// __sigwait_nocancel
-// __semwait_signal_nocancel
-// __mac_mount
-// __mac_get_mount
-// __mac_getfsstat

vendor/golang.org/x/sys/unix/syscall_freebsd_386.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build 386 && freebsd
-// +build 386,freebsd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_freebsd_amd64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build amd64 && freebsd
-// +build amd64,freebsd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_freebsd_arm.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build arm && freebsd
-// +build arm,freebsd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_freebsd_arm64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build arm64 && freebsd
-// +build arm64,freebsd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_freebsd_riscv64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build riscv64 && freebsd
-// +build riscv64,freebsd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_hurd.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build hurd
-// +build hurd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_hurd_386.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build 386 && hurd
-// +build 386,hurd
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_illumos.go

@@ -5,7 +5,6 @@
 // illumos system calls not present on Solaris.
 
 //go:build amd64 && illumos
-// +build amd64,illumos
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -61,15 +61,23 @@ func FanotifyMark(fd int, flags uint, mask uint64, dirFd int, pathname string) (
 }
 
 //sys	fchmodat(dirfd int, path string, mode uint32) (err error)
+//sys	fchmodat2(dirfd int, path string, mode uint32, flags int) (err error)
 
-func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {
+func Fchmodat(dirfd int, path string, mode uint32, flags int) error {
-	// Linux fchmodat doesn't support the flags parameter. Mimick glibc's behavior
+	// Linux fchmodat doesn't support the flags parameter, but fchmodat2 does.
-	// and check the flags. Otherwise the mode would be applied to the symlink
+	// Try fchmodat2 if flags are specified.
-	// destination which is not what the user expects.
+	if flags != 0 {
-	if flags&^AT_SYMLINK_NOFOLLOW != 0 {
+		err := fchmodat2(dirfd, path, mode, flags)
-		return EINVAL
+		if err == ENOSYS {
-	} else if flags&AT_SYMLINK_NOFOLLOW != 0 {
+			// fchmodat2 isn't available. If the flags are known to be valid,
-		return EOPNOTSUPP
+			// return EOPNOTSUPP to indicate that fchmodat doesn't support them.
+			if flags&^(AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) != 0 {
+				return EINVAL
+			} else if flags&(AT_SYMLINK_NOFOLLOW|AT_EMPTY_PATH) != 0 {
+				return EOPNOTSUPP
+			}
+		}
+		return err
 	}
 	return fchmodat(dirfd, path, mode)
 }
@@ -417,7 +425,8 @@ func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	if n > 0 {
 		sl += _Socklen(n) + 1
 	}
-	if sa.raw.Path[0] == '@' {
+	if sa.raw.Path[0] == '@' || (sa.raw.Path[0] == 0 && sl > 3) {
+		// Check sl > 3 so we don't change unnamed socket behavior.
 		sa.raw.Path[0] = 0
 		// Don't count trailing NUL for abstract address.
 		sl--
@@ -693,10 +702,10 @@ type SockaddrALG struct {
 
 func (sa *SockaddrALG) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	// Leave room for NUL byte terminator.
-	if len(sa.Type) > 13 {
+	if len(sa.Type) > len(sa.raw.Type)-1 {
 		return nil, 0, EINVAL
 	}
-	if len(sa.Name) > 63 {
+	if len(sa.Name) > len(sa.raw.Name)-1 {
 		return nil, 0, EINVAL
 	}
 
@@ -704,17 +713,8 @@ func (sa *SockaddrALG) sockaddr() (unsafe.Pointer, _Socklen, error) {
 	sa.raw.Feat = sa.Feature
 	sa.raw.Mask = sa.Mask
 
-	typ, err := ByteSliceFromString(sa.Type)
+	copy(sa.raw.Type[:], sa.Type)
-	if err != nil {
+	copy(sa.raw.Name[:], sa.Name)
-		return nil, 0, err
-	}
-	name, err := ByteSliceFromString(sa.Name)
-	if err != nil {
-		return nil, 0, err
-	}
-
-	copy(sa.raw.Type[:], typ)
-	copy(sa.raw.Name[:], name)
 
 	return unsafe.Pointer(&sa.raw), SizeofSockaddrALG, nil
 }
@@ -1310,7 +1310,7 @@ func GetsockoptString(fd, level, opt int) (string, error) {
 			return "", err
 		}
 	}
-	return string(buf[:vallen-1]), nil
+	return ByteSliceToString(buf[:vallen]), nil
 }
 
 func GetsockoptTpacketStats(fd, level, opt int) (*TpacketStats, error) {
@@ -1699,12 +1699,23 @@ func PtracePokeUser(pid int, addr uintptr, data []byte) (count int, err error) {
 	return ptracePoke(PTRACE_POKEUSR, PTRACE_PEEKUSR, pid, addr, data)
 }
 
+// elfNT_PRSTATUS is a copy of the debug/elf.NT_PRSTATUS constant so
+// x/sys/unix doesn't need to depend on debug/elf and thus
+// compress/zlib, debug/dwarf, and other packages.
+const elfNT_PRSTATUS = 1
+
 func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
-	return ptracePtr(PTRACE_GETREGS, pid, 0, unsafe.Pointer(regsout))
+	var iov Iovec
+	iov.Base = (*byte)(unsafe.Pointer(regsout))
+	iov.SetLen(int(unsafe.Sizeof(*regsout)))
+	return ptracePtr(PTRACE_GETREGSET, pid, uintptr(elfNT_PRSTATUS), unsafe.Pointer(&iov))
 }
 
 func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
-	return ptracePtr(PTRACE_SETREGS, pid, 0, unsafe.Pointer(regs))
+	var iov Iovec
+	iov.Base = (*byte)(unsafe.Pointer(regs))
+	iov.SetLen(int(unsafe.Sizeof(*regs)))
+	return ptracePtr(PTRACE_SETREGSET, pid, uintptr(elfNT_PRSTATUS), unsafe.Pointer(&iov))
 }
 
 func PtraceSetOptions(pid int, options int) (err error) {
@@ -1838,6 +1849,105 @@ func Dup2(oldfd, newfd int) error {
 //sys	Fsmount(fd int, flags int, mountAttrs int) (fsfd int, err error)
 //sys	Fsopen(fsName string, flags int) (fd int, err error)
 //sys	Fspick(dirfd int, pathName string, flags int) (fd int, err error)
+
+//sys	fsconfig(fd int, cmd uint, key *byte, value *byte, aux int) (err error)
+
+func fsconfigCommon(fd int, cmd uint, key string, value *byte, aux int) (err error) {
+	var keyp *byte
+	if keyp, err = BytePtrFromString(key); err != nil {
+		return
+	}
+	return fsconfig(fd, cmd, keyp, value, aux)
+}
+
+// FsconfigSetFlag is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_SET_FLAG.
+//
+// fd is the filesystem context to act upon.
+// key the parameter key to set.
+func FsconfigSetFlag(fd int, key string) (err error) {
+	return fsconfigCommon(fd, FSCONFIG_SET_FLAG, key, nil, 0)
+}
+
+// FsconfigSetString is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_SET_STRING.
+//
+// fd is the filesystem context to act upon.
+// key the parameter key to set.
+// value is the parameter value to set.
+func FsconfigSetString(fd int, key string, value string) (err error) {
+	var valuep *byte
+	if valuep, err = BytePtrFromString(value); err != nil {
+		return
+	}
+	return fsconfigCommon(fd, FSCONFIG_SET_STRING, key, valuep, 0)
+}
+
+// FsconfigSetBinary is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_SET_BINARY.
+//
+// fd is the filesystem context to act upon.
+// key the parameter key to set.
+// value is the parameter value to set.
+func FsconfigSetBinary(fd int, key string, value []byte) (err error) {
+	if len(value) == 0 {
+		return EINVAL
+	}
+	return fsconfigCommon(fd, FSCONFIG_SET_BINARY, key, &value[0], len(value))
+}
+
+// FsconfigSetPath is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_SET_PATH.
+//
+// fd is the filesystem context to act upon.
+// key the parameter key to set.
+// path is a non-empty path for specified key.
+// atfd is a file descriptor at which to start lookup from or AT_FDCWD.
+func FsconfigSetPath(fd int, key string, path string, atfd int) (err error) {
+	var valuep *byte
+	if valuep, err = BytePtrFromString(path); err != nil {
+		return
+	}
+	return fsconfigCommon(fd, FSCONFIG_SET_PATH, key, valuep, atfd)
+}
+
+// FsconfigSetPathEmpty is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_SET_PATH_EMPTY. The same as
+// FconfigSetPath but with AT_PATH_EMPTY implied.
+func FsconfigSetPathEmpty(fd int, key string, path string, atfd int) (err error) {
+	var valuep *byte
+	if valuep, err = BytePtrFromString(path); err != nil {
+		return
+	}
+	return fsconfigCommon(fd, FSCONFIG_SET_PATH_EMPTY, key, valuep, atfd)
+}
+
+// FsconfigSetFd is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_SET_FD.
+//
+// fd is the filesystem context to act upon.
+// key the parameter key to set.
+// value is a file descriptor to be assigned to specified key.
+func FsconfigSetFd(fd int, key string, value int) (err error) {
+	return fsconfigCommon(fd, FSCONFIG_SET_FD, key, nil, value)
+}
+
+// FsconfigCreate is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_CMD_CREATE.
+//
+// fd is the filesystem context to act upon.
+func FsconfigCreate(fd int) (err error) {
+	return fsconfig(fd, FSCONFIG_CMD_CREATE, nil, nil, 0)
+}
+
+// FsconfigReconfigure is equivalent to fsconfig(2) called
+// with cmd == FSCONFIG_CMD_RECONFIGURE.
+//
+// fd is the filesystem context to act upon.
+func FsconfigReconfigure(fd int) (err error) {
+	return fsconfig(fd, FSCONFIG_CMD_RECONFIGURE, nil, nil, 0)
+}
+
 //sys	Getdents(fd int, buf []byte) (n int, err error) = SYS_GETDENTS64
 //sysnb	Getpgid(pid int) (pgid int, err error)
 
@@ -1873,9 +1983,8 @@ func Getpgrp() (pid int) {
 //sys	OpenTree(dfd int, fileName string, flags uint) (r int, err error)
 //sys	PerfEventOpen(attr *PerfEventAttr, pid int, cpu int, groupFd int, flags int) (fd int, err error)
 //sys	PivotRoot(newroot string, putold string) (err error) = SYS_PIVOT_ROOT
-//sysnb	Prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) = SYS_PRLIMIT64
 //sys	Prctl(option int, arg2 uintptr, arg3 uintptr, arg4 uintptr, arg5 uintptr) (err error)
-//sys	Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error) = SYS_PSELECT6
+//sys	pselect6(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *sigset_argpack) (n int, err error)
 //sys	read(fd int, p []byte) (n int, err error)
 //sys	Removexattr(path string, attr string) (err error)
 //sys	Renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags uint) (err error)
@@ -1887,6 +1996,15 @@ func Getpgrp() (pid int) {
 //sysnb	Settimeofday(tv *Timeval) (err error)
 //sys	Setns(fd int, nstype int) (err error)
 
+//go:linkname syscall_prlimit syscall.prlimit
+func syscall_prlimit(pid, resource int, newlimit, old *syscall.Rlimit) error
+
+func Prlimit(pid, resource int, newlimit, old *Rlimit) error {
+	// Just call the syscall version, because as of Go 1.21
+	// it will affect starting a new process.
+	return syscall_prlimit(pid, resource, (*syscall.Rlimit)(newlimit), (*syscall.Rlimit)(old))
+}
+
 // PrctlRetInt performs a prctl operation specified by option and further
 // optional arguments arg2 through arg5 depending on option. It returns a
 // non-negative integer that is returned by the prctl syscall.
@@ -1969,8 +2087,6 @@ func Signalfd(fd int, sigmask *Sigset_t, flags int) (newfd int, err error) {
 //sys	Unshare(flags int) (err error)
 //sys	write(fd int, p []byte) (n int, err error)
 //sys	exitThread(code int) (err error) = SYS_EXIT
-//sys	readlen(fd int, p *byte, np int) (n int, err error) = SYS_READ
-//sys	writelen(fd int, p *byte, np int) (n int, err error) = SYS_WRITE
 //sys	readv(fd int, iovs []Iovec) (n int, err error) = SYS_READV
 //sys	writev(fd int, iovs []Iovec) (n int, err error) = SYS_WRITEV
 //sys	preadv(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) = SYS_PREADV
@@ -2105,21 +2221,7 @@ func writevRacedetect(iovecs []Iovec, n int) {
 
 // mmap varies by architecture; see syscall_linux_*.go.
 //sys	munmap(addr uintptr, length uintptr) (err error)
-
+//sys	mremap(oldaddr uintptr, oldlength uintptr, newlength uintptr, flags int, newaddr uintptr) (xaddr uintptr, err error)
-var mapper = &mmapper{
-	active: make(map[*byte][]byte),
-	mmap:   mmap,
-	munmap: munmap,
-}
-
-func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, err error) {
-	return mapper.Mmap(fd, offset, length, prot, flags)
-}
-
-func Munmap(b []byte) (err error) {
-	return mapper.Munmap(b)
-}
-
 //sys	Madvise(b []byte, advice int) (err error)
 //sys	Mprotect(b []byte, prot int) (err error)
 //sys	Mlock(b []byte) (err error)
@@ -2128,6 +2230,12 @@ func Munmap(b []byte) (err error) {
 //sys	Munlock(b []byte) (err error)
 //sys	Munlockall() (err error)
 
+const (
+	mremapFixed     = MREMAP_FIXED
+	mremapDontunmap = MREMAP_DONTUNMAP
+	mremapMaymove   = MREMAP_MAYMOVE
+)
+
 // Vmsplice splices user pages from a slice of Iovecs into a pipe specified by fd,
 // using the specified flags.
 func Vmsplice(fd int, iovs []Iovec, flags int) (int, error) {
@@ -2412,99 +2520,76 @@ func PthreadSigmask(how int, set, oldset *Sigset_t) error {
 	return rtSigprocmask(how, set, oldset, _C__NSIG/8)
 }
 
-/*
+//sysnb	getresuid(ruid *_C_int, euid *_C_int, suid *_C_int)
- * Unimplemented
+//sysnb	getresgid(rgid *_C_int, egid *_C_int, sgid *_C_int)
- */
+
-// AfsSyscall
+func Getresuid() (ruid, euid, suid int) {
-// ArchPrctl
+	var r, e, s _C_int
-// Brk
+	getresuid(&r, &e, &s)
-// ClockNanosleep
+	return int(r), int(e), int(s)
-// ClockSettime
+}
-// Clone
+
-// EpollCtlOld
+func Getresgid() (rgid, egid, sgid int) {
-// EpollPwait
+	var r, e, s _C_int
-// EpollWaitOld
+	getresgid(&r, &e, &s)
-// Execve
+	return int(r), int(e), int(s)
-// Fork
+}
-// Futex
+
-// GetKernelSyms
+// Pselect is a wrapper around the Linux pselect6 system call.
-// GetMempolicy
+// This version does not modify the timeout argument.
-// GetRobustList
+func Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {
-// GetThreadArea
+	// Per https://man7.org/linux/man-pages/man2/select.2.html#NOTES,
-// Getpmsg
+	// The Linux pselect6() system call modifies its timeout argument.
-// IoCancel
+	// [Not modifying the argument] is the behavior required by POSIX.1-2001.
-// IoDestroy
+	var mutableTimeout *Timespec
-// IoGetevents
+	if timeout != nil {
-// IoSetup
+		mutableTimeout = new(Timespec)
-// IoSubmit
+		*mutableTimeout = *timeout
-// IoprioGet
+	}
-// IoprioSet
+
-// KexecLoad
+	// The final argument of the pselect6() system call is not a
-// LookupDcookie
+	// sigset_t * pointer, but is instead a structure
-// Mbind
+	var kernelMask *sigset_argpack
-// MigratePages
+	if sigmask != nil {
-// Mincore
+		wordBits := 32 << (^uintptr(0) >> 63) // see math.intSize
-// ModifyLdt
+
-// Mount
+		// A sigset stores one bit per signal,
-// MovePages
+		// offset by 1 (because signal 0 does not exist).
-// MqGetsetattr
+		// So the number of words needed is ⌈__C_NSIG - 1 / wordBits⌉.
-// MqNotify
+		sigsetWords := (_C__NSIG - 1 + wordBits - 1) / (wordBits)
-// MqOpen
+
-// MqTimedreceive
+		sigsetBytes := uintptr(sigsetWords * (wordBits / 8))
-// MqTimedsend
+		kernelMask = &sigset_argpack{
-// MqUnlink
+			ss:    sigmask,
-// Mremap
+			ssLen: sigsetBytes,
-// Msgctl
+		}
-// Msgget
+	}
-// Msgrcv
+
-// Msgsnd
+	return pselect6(nfd, r, w, e, mutableTimeout, kernelMask)
-// Nfsservctl
+}
-// Personality
+
-// Pselect6
+//sys	schedSetattr(pid int, attr *SchedAttr, flags uint) (err error)
-// Ptrace
+//sys	schedGetattr(pid int, attr *SchedAttr, size uint, flags uint) (err error)
-// Putpmsg
+
-// Quotactl
+// SchedSetAttr is a wrapper for sched_setattr(2) syscall.
-// Readahead
+// https://man7.org/linux/man-pages/man2/sched_setattr.2.html
-// Readv
+func SchedSetAttr(pid int, attr *SchedAttr, flags uint) error {
-// RemapFilePages
+	if attr == nil {
-// RestartSyscall
+		return EINVAL
-// RtSigaction
+	}
-// RtSigpending
+	attr.Size = SizeofSchedAttr
-// RtSigqueueinfo
+	return schedSetattr(pid, attr, flags)
-// RtSigreturn
+}
-// RtSigsuspend
+
-// RtSigtimedwait
+// SchedGetAttr is a wrapper for sched_getattr(2) syscall.
-// SchedGetPriorityMax
+// https://man7.org/linux/man-pages/man2/sched_getattr.2.html
-// SchedGetPriorityMin
+func SchedGetAttr(pid int, flags uint) (*SchedAttr, error) {
-// SchedGetparam
+	attr := &SchedAttr{}
-// SchedGetscheduler
+	if err := schedGetattr(pid, attr, SizeofSchedAttr, flags); err != nil {
-// SchedRrGetInterval
+		return nil, err
-// SchedSetparam
+	}
-// SchedYield
+	return attr, nil
-// Security
+}
-// Semctl
+
-// Semget
+//sys	Cachestat(fd uint, crange *CachestatRange, cstat *Cachestat_t, flags uint) (err error)
-// Semop
+//sys	Mseal(b []byte, flags uint) (err error)
-// Semtimedop
-// SetMempolicy
-// SetRobustList
-// SetThreadArea
-// SetTidAddress
-// Sigaltstack
-// Swapoff
-// Swapon
-// Sysfs
-// TimerCreate
-// TimerDelete
-// TimerGetoverrun
-// TimerGettime
-// TimerSettime
-// Tkill (obsolete)
-// Tuxcall
-// Umount2
-// Uselib
-// Utimensat
-// Vfork
-// Vhangup
-// Vserver
-// _Sysctl

vendor/golang.org/x/sys/unix/syscall_linux_386.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build 386 && linux
-// +build 386,linux
 
 package unix
 
@@ -97,33 +96,6 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
 	return
 }
 
-//sysnb	setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
-
-func Setrlimit(resource int, rlim *Rlimit) (err error) {
-	err = Prlimit(0, resource, rlim, nil)
-	if err != ENOSYS {
-		return err
-	}
-
-	rl := rlimit32{}
-	if rlim.Cur == rlimInf64 {
-		rl.Cur = rlimInf32
-	} else if rlim.Cur < uint64(rlimInf32) {
-		rl.Cur = uint32(rlim.Cur)
-	} else {
-		return EINVAL
-	}
-	if rlim.Max == rlimInf64 {
-		rl.Max = rlimInf32
-	} else if rlim.Max < uint64(rlimInf32) {
-		rl.Max = uint32(rlim.Max)
-	} else {
-		return EINVAL
-	}
-
-	return setrlimit(resource, &rl)
-}
-
 func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
 	newoffset, errno := seek(fd, offset, whence)
 	if errno != 0 {

vendor/golang.org/x/sys/unix/syscall_linux_alarm.go

@@ -3,8 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && (386 || amd64 || mips || mipsle || mips64 || mipsle || ppc64 || ppc64le || ppc || s390x || sparc64)
-// +build linux
-// +build 386 amd64 mips mipsle mips64 mipsle ppc64 ppc64le ppc s390x sparc64
 
 package unix
 

vendor/golang.org/x/sys/unix/syscall_linux_amd64.go

@@ -3,7 +3,6 @@
 // license that can be found in the LICENSE file.
 
 //go:build amd64 && linux
-// +build amd64,linux
 
 package unix
 
@@ -40,13 +39,12 @@ func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err
 	if timeout != nil {
 		ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
 	}
-	return Pselect(nfd, r, w, e, ts, nil)
+	return pselect6(nfd, r, w, e, ts, nil)
 }
 
 //sys	sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
 //sys	setfsgid(gid int) (prev int, err error)
 //sys	setfsuid(uid int) (prev int, err error)
-//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
 //sys	Shutdown(fd int, how int) (err error)
 //sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)