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syscall: add race annotations to Pread and Pwrite

Browse Source 
Fixes #51618

Change-Id: Ife894d8c313dce8c4929f40fa0ac90a069f77a89
Reviewed-on: https://go-review.googlesource.com/c/go/+/391954
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Ian Lance Taylor 2022-03-11 18:29:37 -08:00
parent baf61e4a67
commit 842d37ee5f
47 changed files with 155 additions and 107 deletions
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14
src/runtime/race/testdata/mop_test.go vendored
View File

@ -1896,6 +1896,14 @@ func TestRaceNestedStruct(t *testing.T) {
}
func TestRaceIssue5567(t *testing.T) {
testRaceRead(t, false)
}
func TestRaceIssue51618(t *testing.T) {
testRaceRead(t, true)
}
func testRaceRead(t *testing.T, pread bool) {
defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
in := make(chan []byte)
res := make(chan error)
@ -1914,7 +1922,11 @@ func TestRaceIssue5567(t *testing.T) {
var n, total int
b := make([]byte, 17) // the race is on b buffer
for err == nil {
n, err = f.Read(b)
if pread {
n, err = f.ReadAt(b, int64(total))
} else {
n, err = f.Read(b)
}
total += n
if n > 0 {
in <- b[:n]

4
src/syscall/syscall_aix.go
View File

@ -604,8 +604,8 @@ func PtraceDetach(pid int) (err error) { return ptrace64(PT_DETACH, int64(pid),
//sys Mkdirat(dirfd int, path string, mode uint32) (err error)
//sys Mknodat(dirfd int, path string, mode uint32, dev int) (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error)
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys Reboot(how int) (err error)
//sys Rename(from string, to string) (err error)

4
src/syscall/syscall_darwin.go
View File

@ -170,8 +170,8 @@ func Kill(pid int, signum Signal) (err error) { return kill(pid, int(signum), 1)
//sys Munlockall() (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error)
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys readdir_r(dir uintptr, entry *Dirent, result **Dirent) (res Errno)
//sys Readlink(path string, buf []byte) (n int, err error)

4
src/syscall/syscall_dragonfly.go
View File

@ -122,12 +122,12 @@ func Pipe2(p []int, flags int) (err error) {
}
//sys extpread(fd int, p []byte, flags int, offset int64) (n int, err error)
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
return extpread(fd, p, 0, offset)
}
//sys extpwrite(fd int, p []byte, flags int, offset int64) (n int, err error)
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
return extpwrite(fd, p, 0, offset)
}

4
src/syscall/syscall_freebsd.go
View File

@ -469,8 +469,8 @@ func convertFromDirents11(buf []byte, old []byte) int {
//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error)
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys Readlink(path string, buf []byte) (n int, err error)
//sys Rename(from string, to string) (err error)

4
src/syscall/syscall_linux_386.go
View File

@ -32,8 +32,8 @@ func setTimeval(sec, usec int64) Timeval {
//sys Ioperm(from int, num int, on int) (err error)
//sys Iopl(level int) (err error)
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
//sys Setfsgid(gid int) (err error) = SYS_SETFSGID32

4
src/syscall/syscall_linux_amd64.go
View File

@ -22,8 +22,8 @@ const _SYS_setgroups = SYS_SETGROUPS
//sys Iopl(level int) (err error)
//sys Listen(s int, n int) (err error)
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)

4
src/syscall/syscall_linux_arm.go
View File

@ -72,8 +72,8 @@ func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
//sys Utime(path string, buf *Utimbuf) (err error)
//sys utimes(path string, times *[2]Timeval) (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
//sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64

4
src/syscall/syscall_linux_arm64.go
View File

@ -28,8 +28,8 @@ func EpollCreate(size int) (fd int, err error) {
//sysnb getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb Getuid() (uid int)
//sys Listen(s int, n int) (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)

4
src/syscall/syscall_linux_mips64x.go
View File

@ -23,8 +23,8 @@ const _SYS_setgroups = SYS_SETGROUPS
//sys Lchown(path string, uid int, gid int) (err error)
//sys Listen(s int, n int) (err error)
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)

4
src/syscall/syscall_linux_mipsx.go
View File

@ -24,8 +24,8 @@ func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr,
//sys Lchown(path string, uid int, gid int) (err error)
//sys Listen(s int, n int) (err error)
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64

4
src/syscall/syscall_linux_ppc64x.go
View File

@ -28,8 +28,8 @@ const _SYS_setgroups = SYS_SETGROUPS
//sys Listen(s int, n int) (err error)
//sys Lstat(path string, stat *Stat_t) (err error)
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT

4
src/syscall/syscall_linux_riscv64.go
View File

@ -28,8 +28,8 @@ func EpollCreate(size int) (fd int, err error) {
//sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
//sysnb Getuid() (uid int)
//sys Listen(s int, n int) (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags uint) (err error)
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)

4
src/syscall/syscall_linux_s390x.go
View File

@ -25,8 +25,8 @@ const _SYS_setgroups = SYS_SETGROUPS
//sys Lchown(path string, uid int, gid int) (err error)
//sys Lstat(path string, stat *Stat_t) (err error)
//sys Pause() (err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error)

4
src/syscall/syscall_netbsd.go
View File

@ -198,8 +198,8 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error)
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys Readlink(path string, buf []byte) (n int, err error)
//sys Rename(from string, to string) (err error)

4
src/syscall/syscall_openbsd.go
View File

@ -173,8 +173,8 @@ func Getfsstat(buf []Statfs_t, flags int) (n int, err error) {
//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error)
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys Readlink(path string, buf []byte) (n int, err error)
//sys Rename(from string, to string) (err error)

4
src/syscall/syscall_solaris.go
View File

@ -434,8 +434,8 @@ func sendmsgN(fd int, p, oob []byte, ptr unsafe.Pointer, salen _Socklen, flags i
//sys Nanosleep(time *Timespec, leftover *Timespec) (err error)
//sys Open(path string, mode int, perm uint32) (fd int, err error)
//sys Pathconf(path string, name int) (val int, err error)
//sys Pread(fd int, p []byte, offset int64) (n int, err error)
//sys Pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error)
//sys pwrite(fd int, p []byte, offset int64) (n int, err error)
//sys read(fd int, p []byte) (n int, err error)
//sys Readlink(path string, buf []byte) (n int, err error)
//sys Rename(from string, to string) (err error)

36
src/syscall/syscall_unix.go
View File

@ -227,6 +227,42 @@ func Write(fd int, p []byte) (n int, err error) {
return
}
func Pread(fd int, p []byte, offset int64) (n int, err error) {
n, err = pread(fd, p, offset)
if race.Enabled {
if n > 0 {
race.WriteRange(unsafe.Pointer(&p[0]), n)
}
if err == nil {
race.Acquire(unsafe.Pointer(&ioSync))
}
}
if msanenabled && n > 0 {
msanWrite(unsafe.Pointer(&p[0]), n)
}
if asanenabled && n > 0 {
asanWrite(unsafe.Pointer(&p[0]), n)
}
return
}
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
if race.Enabled {
race.ReleaseMerge(unsafe.Pointer(&ioSync))
}
n, err = pwrite(fd, p, offset)
if race.Enabled && n > 0 {
race.ReadRange(unsafe.Pointer(&p[0]), n)
}
if msanenabled && n > 0 {
msanRead(unsafe.Pointer(&p[0]), n)
}
if asanenabled && n > 0 {
asanRead(unsafe.Pointer(&p[0]), n)
}
return
}
// For testing: clients can set this flag to force
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool

20
src/syscall/zsyscall_aix_ppc64.go
View File

@ -72,8 +72,8 @@ import "unsafe"
//go:cgo_import_dynamic libc_Mkdirat mkdirat "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Mknodat mknodat "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Open open "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Pread pread "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Pwrite pwrite "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_pread pread "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_pwrite pwrite "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_read read "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Reboot reboot "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Rename rename "libc.a/shr_64.o"
@ -165,8 +165,8 @@ import "unsafe"
//go:linkname libc_Mkdirat libc_Mkdirat
//go:linkname libc_Mknodat libc_Mknodat
//go:linkname libc_Open libc_Open
//go:linkname libc_Pread libc_Pread
//go:linkname libc_Pwrite libc_Pwrite
//go:linkname libc_pread libc_pread
//go:linkname libc_pwrite libc_pwrite
//go:linkname libc_read libc_read
//go:linkname libc_Reboot libc_Reboot
//go:linkname libc_Rename libc_Rename
@ -261,8 +261,8 @@ var (
libc_Mkdirat,
libc_Mknodat,
libc_Open,
libc_Pread,
libc_Pwrite,
libc_pread,
libc_pwrite,
libc_read,
libc_Reboot,
libc_Rename,
@ -1067,12 +1067,12 @@ func Open(path string, mode int, perm uint32) (fd int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 *byte
if len(p) > 0 {
_p0 = &p[0]
}
r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_Pread)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_pread)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
@ -1082,12 +1082,12 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 *byte
if len(p) > 0 {
_p0 = &p[0]
}
r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_Pwrite)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_pwrite)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)

4
src/syscall/zsyscall_darwin_amd64.go
View File

@ -1137,7 +1137,7 @@ func libc_pathconf_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1158,7 +1158,7 @@ func libc_pread_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_darwin_arm64.go
View File

@ -1137,7 +1137,7 @@ func libc_pathconf_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1158,7 +1158,7 @@ func libc_pread_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_freebsd_386.go
View File

@ -905,7 +905,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -922,7 +922,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_freebsd_amd64.go
View File

@ -905,7 +905,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -922,7 +922,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_freebsd_arm.go
View File

@ -905,7 +905,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -922,7 +922,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_freebsd_arm64.go
View File

@ -905,7 +905,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -922,7 +922,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_386.go
View File

@ -1196,7 +1196,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1213,7 +1213,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_amd64.go
View File

@ -1211,7 +1211,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1228,7 +1228,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_arm.go
View File

@ -1493,7 +1493,7 @@ func utimes(path string, times *[2]Timeval) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1510,7 +1510,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_arm64.go
View File

@ -1196,7 +1196,7 @@ func Listen(s int, n int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1213,7 +1213,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_mips.go
View File

@ -1180,7 +1180,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1197,7 +1197,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_mips64.go
View File

@ -1211,7 +1211,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1228,7 +1228,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_mips64le.go
View File

@ -1211,7 +1211,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1228,7 +1228,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_mipsle.go
View File

@ -1180,7 +1180,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1197,7 +1197,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_ppc64.go
View File

@ -1273,7 +1273,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1290,7 +1290,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_ppc64le.go
View File

@ -1273,7 +1273,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1290,7 +1290,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_riscv64.go
View File

@ -1196,7 +1196,7 @@ func Listen(s int, n int) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1213,7 +1213,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_linux_s390x.go
View File

@ -1243,7 +1243,7 @@ func Pause() (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1260,7 +1260,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_netbsd_386.go
View File

@ -816,7 +816,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -833,7 +833,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_netbsd_amd64.go
View File

@ -816,7 +816,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -833,7 +833,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_netbsd_arm.go
View File

@ -816,7 +816,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -833,7 +833,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_netbsd_arm64.go
View File

@ -816,7 +816,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -833,7 +833,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_openbsd_386.go
View File

@ -1105,7 +1105,7 @@ func libc_pathconf_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1126,7 +1126,7 @@ func libc_pread_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_openbsd_amd64.go
View File

@ -1105,7 +1105,7 @@ func libc_pathconf_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1126,7 +1126,7 @@ func libc_pread_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_openbsd_arm.go
View File

@ -1105,7 +1105,7 @@ func libc_pathconf_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1126,7 +1126,7 @@ func libc_pread_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_openbsd_arm64.go
View File

@ -1105,7 +1105,7 @@ func libc_pathconf_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -1126,7 +1126,7 @@ func libc_pread_trampoline()
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

4
src/syscall/zsyscall_openbsd_mips64.go
View File

@ -810,7 +810,7 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])
@ -827,7 +827,7 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {
_p0 = unsafe.Pointer(&p[0])

20
src/syscall/zsyscall_solaris_amd64.go
View File

@ -48,8 +48,8 @@ import "unsafe"
//go:cgo_import_dynamic libc_Nanosleep nanosleep "libc.so"
//go:cgo_import_dynamic libc_Open open "libc.so"
//go:cgo_import_dynamic libc_Pathconf pathconf "libc.so"
//go:cgo_import_dynamic libc_Pread pread "libc.so"
//go:cgo_import_dynamic libc_Pwrite pwrite "libc.so"
//go:cgo_import_dynamic libc_pread pread "libc.so"
//go:cgo_import_dynamic libc_pwrite pwrite "libc.so"
//go:cgo_import_dynamic libc_read read "libc.so"
//go:cgo_import_dynamic libc_Readlink readlink "libc.so"
//go:cgo_import_dynamic libc_Rename rename "libc.so"
@ -134,8 +134,8 @@ import "unsafe"
//go:linkname libc_Nanosleep libc_Nanosleep
//go:linkname libc_Open libc_Open
//go:linkname libc_Pathconf libc_Pathconf
//go:linkname libc_Pread libc_Pread
//go:linkname libc_Pwrite libc_Pwrite
//go:linkname libc_pread libc_pread
//go:linkname libc_pwrite libc_pwrite
//go:linkname libc_read libc_read
//go:linkname libc_Readlink libc_Readlink
//go:linkname libc_Rename libc_Rename
@ -223,8 +223,8 @@ var (
libc_Nanosleep,
libc_Open,
libc_Pathconf,
libc_Pread,
libc_Pwrite,
libc_pread,
libc_pwrite,
libc_read,
libc_Readlink,
libc_Rename,
@ -753,12 +753,12 @@ func Pathconf(path string, name int) (val int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pread(fd int, p []byte, offset int64) (n int, err error) {
func pread(fd int, p []byte, offset int64) (n int, err error) {
var _p0 *byte
if len(p) > 0 {
_p0 = &p[0]
}
r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&libc_Pread)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&libc_pread)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
@ -768,12 +768,12 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func pwrite(fd int, p []byte, offset int64) (n int, err error) {
var _p0 *byte
if len(p) > 0 {
_p0 = &p[0]
}
r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&libc_Pwrite)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&libc_pwrite)), 4, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(offset), 0, 0)
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)