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mirror of https://github.com/golang/go synced 2024-11-18 17:54:57 -07:00

syscall: use 64-bit file size for truncation on Linux

Truncate and Ftruncate for 32-bit Linux should use 64-bit
offset system calls.

R=rsc
CC=golang-dev, royger
https://golang.org/cl/2943041
This commit is contained in:
Peter Mundy 2010-11-05 16:41:23 -04:00 committed by Russ Cox
parent 6101788972
commit fa7341aafd
7 changed files with 54 additions and 50 deletions

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@ -623,7 +623,6 @@ func PtraceDetach(pid int) (errno int) { return ptrace(PTRACE_DETACH, pid, 0, 0)
//sys fcntl(fd int, cmd int, arg int) (val int, errno int)
//sys Fdatasync(fd int) (errno int)
//sys Fsync(fd int) (errno int)
//sys Ftruncate(fd int, length int64) (errno int)
//sys Getdents(fd int, buf []byte) (n int, errno int) = SYS_GETDENTS64
//sys Getpgid(pid int) (pgid int, errno int)
//sys Getpgrp() (pid int)
@ -665,7 +664,6 @@ func PtraceDetach(pid int) (errno int) { return ptrace(PTRACE_DETACH, pid, 0, 0)
//sys Tee(rfd int, wfd int, len int, flags int) (n int64, errno int)
//sys Tgkill(tgid int, tid int, sig int) (errno int)
//sys Times(tms *Tms) (ticks uintptr, errno int)
//sys Truncate(path string, length int64) (errno int)
//sys Umask(mask int) (oldmask int)
//sys Uname(buf *Utsname) (errno int)
//sys Unlink(path string) (errno int)

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@ -30,6 +30,7 @@ func NsecToTimeval(nsec int64) (tv Timeval) {
//sys Chown(path string, uid int, gid int) (errno int) = SYS_CHOWN32
//sys Fchown(fd int, uid int, gid int) (errno int) = SYS_FCHOWN32
//sys Fstat(fd int, stat *Stat_t) (errno int) = SYS_FSTAT64
//sys Ftruncate(fd int, length int64) (errno int) = SYS_FTRUNCATE64
//sys Getegid() (egid int) = SYS_GETEGID32
//sys Geteuid() (euid int) = SYS_GETEUID32
//sys Getgid() (gid int) = SYS_GETGID32
@ -49,6 +50,7 @@ func NsecToTimeval(nsec int64) (tv Timeval) {
//sys Setreuid(ruid int, euid int) (errno int) = SYS_SETREUID32
//sys Stat(path string, stat *Stat_t) (errno int) = SYS_STAT64
//sys SyncFileRange(fd int, off int64, n int64, flags int) (errno int)
//sys Truncate(path string, length int64) (errno int) = SYS_TRUNCATE64
//sys getgroups(n int, list *_Gid_t) (nn int, errno int) = SYS_GETGROUPS32
//sys setgroups(n int, list *_Gid_t) (errno int) = SYS_SETGROUPS32
//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, errno int) = SYS__NEWSELECT

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@ -8,6 +8,7 @@ package syscall
//sys Fchown(fd int, uid int, gid int) (errno int)
//sys Fstat(fd int, stat *Stat_t) (errno int)
//sys Fstatfs(fd int, buf *Statfs_t) (errno int)
//sys Ftruncate(fd int, length int64) (errno int)
//sys Getegid() (egid int)
//sys Geteuid() (euid int)
//sys Getgid() (gid int)
@ -32,6 +33,7 @@ package syscall
//sys Stat(path string, stat *Stat_t) (errno int)
//sys Statfs(path string, buf *Statfs_t) (errno int)
//sys SyncFileRange(fd int, off int64, n int64, flags int) (errno int)
//sys Truncate(path string, length int64) (errno int)
//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int)
//sys bind(s int, addr uintptr, addrlen _Socklen) (errno int)
//sys connect(s int, addr uintptr, addrlen _Socklen) (errno int)

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@ -69,6 +69,7 @@ func Seek(fd int, offset int64, whence int) (newoffset int64, errno int)
//sys Fchown(fd int, uid int, gid int) (errno int)
//sys Fstat(fd int, stat *Stat_t) (errno int) = SYS_FSTAT64
//sys Fstatfs(fd int, buf *Statfs_t) (errno int) = SYS_FSTATFS64
//sys Ftruncate(fd int, length int64) (errno int) = SYS_FTRUNCATE64
//sys Getegid() (egid int)
//sys Geteuid() (euid int)
//sys Getgid() (gid int)
@ -87,6 +88,7 @@ func Seek(fd int, offset int64, whence int) (newoffset int64, errno int)
//sys Shutdown(fd int, how int) (errno int)
//sys Stat(path string, stat *Stat_t) (errno int) = SYS_STAT64
//sys Statfs(path string, buf *Statfs_t) (errno int) = SYS_STATFS64
//sys Truncate(path string, length int64) (errno int) = SYS_TRUNCATE64
// Vsyscalls on amd64.
//sys Gettimeofday(tv *Timeval) (errno int)

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@ -273,14 +273,6 @@ func Fsync(fd int) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Ftruncate(fd int, length int64) (errno int) {
_, _, e1 := Syscall(SYS_FTRUNCATE, uintptr(fd), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getdents(fd int, buf []byte) (n int, errno int) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
@ -645,14 +637,6 @@ func Times(tms *Tms) (ticks uintptr, errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Truncate(path string, length int64) (errno int) {
_, _, e1 := Syscall(SYS_TRUNCATE, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := Syscall(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
@ -772,6 +756,14 @@ func Fstat(fd int, stat *Stat_t) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Ftruncate(fd int, length int64) (errno int) {
_, _, e1 := Syscall(SYS_FTRUNCATE64, uintptr(fd), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := Syscall(SYS_GETEGID32, 0, 0, 0)
egid = int(r0)
@ -934,6 +926,14 @@ func SyncFileRange(fd int, off int64, n int64, flags int) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Truncate(path string, length int64) (errno int) {
_, _, e1 := Syscall(SYS_TRUNCATE64, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func getgroups(n int, list *_Gid_t) (nn int, errno int) {
r0, _, e1 := Syscall(SYS_GETGROUPS32, uintptr(n), uintptr(unsafe.Pointer(list)), 0)
nn = int(r0)

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@ -273,14 +273,6 @@ func Fsync(fd int) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Ftruncate(fd int, length int64) (errno int) {
_, _, e1 := Syscall(SYS_FTRUNCATE, uintptr(fd), uintptr(length), 0)
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getdents(fd int, buf []byte) (n int, errno int) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
@ -645,14 +637,6 @@ func Times(tms *Tms) (ticks uintptr, errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Truncate(path string, length int64) (errno int) {
_, _, e1 := Syscall(SYS_TRUNCATE, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(length), 0)
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := Syscall(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
@ -780,6 +764,14 @@ func Fstatfs(fd int, buf *Statfs_t) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Ftruncate(fd int, length int64) (errno int) {
_, _, e1 := Syscall(SYS_FTRUNCATE, uintptr(fd), uintptr(length), 0)
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := Syscall(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
@ -984,6 +976,14 @@ func SyncFileRange(fd int, off int64, n int64, flags int) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Truncate(path string, length int64) (errno int) {
_, _, e1 := Syscall(SYS_TRUNCATE, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(length), 0)
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, errno int) {
r0, _, e1 := Syscall(SYS_ACCEPT, uintptr(s), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)))
fd = int(r0)

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@ -273,14 +273,6 @@ func Fsync(fd int) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Ftruncate(fd int, length int64) (errno int) {
_, _, e1 := Syscall(SYS_FTRUNCATE, uintptr(fd), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getdents(fd int, buf []byte) (n int, errno int) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
@ -645,14 +637,6 @@ func Times(tms *Tms) (ticks uintptr, errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Truncate(path string, length int64) (errno int) {
_, _, e1 := Syscall(SYS_TRUNCATE, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
r0, _, _ := Syscall(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
@ -888,6 +872,14 @@ func Fstatfs(fd int, buf *Statfs_t) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Ftruncate(fd int, length int64) (errno int) {
_, _, e1 := Syscall(SYS_FTRUNCATE64, uintptr(fd), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
r0, _, _ := Syscall(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
@ -1033,6 +1025,14 @@ func Statfs(path string, buf *Statfs_t) (errno int) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Truncate(path string, length int64) (errno int) {
_, _, e1 := Syscall(SYS_TRUNCATE64, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(length), uintptr(length>>32))
errno = int(e1)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettimeofday(tv *Timeval) (errno int) {
_, _, e1 := Syscall(SYS_GETTIMEOFDAY, uintptr(unsafe.Pointer(tv)), 0, 0)
errno = int(e1)