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syscall: force O_LARGEFILE in Linux open system call

Browse Source 
Fixes #717.

R=adg, PeterGo
CC=golang-dev
https://golang.org/cl/1032041
This commit is contained in:
Russ Cox 2010-04-29 23:34:06 -07:00
parent 4aaddf8a35
commit 7906e31167
7 changed files with 65 additions and 32 deletions
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6
src/pkg/syscall/mkall.sh
View File

@ -100,30 +100,36 @@ _* | *_ | _)
exit 1
;;
freebsd_386)
mkerrors="$mkerrors -f -m32"
mksyscall="./mksyscall.sh -l32"
mksysnum="./mksysnum_freebsd.sh /usr/src/sys/kern/syscalls.master"
mktypes="godefs -gsyscall -f-m32"
;;
freebsd_amd64)
mkerrors="$mkerrors -f -m64"
mksysnum="./mksysnum_freebsd.sh /usr/src/sys/kern/syscalls.master"
mktypes="godefs -gsyscall -f-m64"
;;
darwin_386)
mkerrors="$mkerrors -f -m32"
mksyscall="./mksyscall.sh -l32"
mksysnum="./mksysnum_darwin.sh /home/rsc/pub/xnu-1228/bsd/kern/syscalls.master"
mktypes="godefs -gsyscall -f-m32"
;;
darwin_amd64)
mkerrors="$mkerrors -f -m64"
mksysnum="./mksysnum_darwin.sh /home/rsc/pub/xnu-1228/bsd/kern/syscalls.master"
mktypes="godefs -gsyscall -f-m64"
mkerrors="./mkerrors.sh"
;;
linux_386)
mkerrors="$mkerrors -f -m32"
mksyscall="./mksyscall.sh -l32"
mksysnum="./mksysnum_linux.sh /usr/include/asm/unistd_32.h"
mktypes="godefs -gsyscall -f-m32"
;;
linux_amd64)
mkerrors="$mkerrors -f -m64"
mksysnum="./mksysnum_linux.sh /usr/include/asm/unistd_64.h"
mktypes="godefs -gsyscall -f-m64"
;;

20
src/pkg/syscall/mkerrors.sh
View File

@ -61,6 +61,18 @@ includes='
#include <signal.h>
'
ccflags=""
next=false
for i
do
if $next; then
ccflags="$ccflags $i"
next=false
elif [ "$i" = "-f" ]; then
next=true
fi
done
# Write godefs input.
(
indirect="includes_$(uname)"
@ -70,7 +82,7 @@ includes='
# The gcc command line prints all the #defines
# it encounters while processing the input
echo "${!indirect} $includes" | $GCC -x c - -E -dM |
echo "${!indirect} $includes" | $GCC -x c - -E -dM $ccflags |
awk '
$1 != "#define" || $2 ~ /\(/ {next}
@ -94,7 +106,7 @@ includes='
# Pull out just the error names for later.
errors=$(
echo '#include <errno.h>' | $GCC -x c - -E -dM |
echo '#include <errno.h>' | $GCC -x c - -E -dM $ccflags |
awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
sort
)
@ -102,7 +114,7 @@ errors=$(
echo '// mkerrors.sh' "$@"
echo '// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT'
echo
godefs -gsyscall "$@" _const.c
godefs "$@" -gsyscall "$@" _const.c
# Run C program to print error strings.
(
@ -155,4 +167,4 @@ main(void)
'
) >_errors.c
gcc -o _errors _errors.c && ./_errors && rm -f _errors.c _errors _const.c
gcc $ccflags -o _errors _errors.c && ./_errors && rm -f _errors.c _errors _const.c

6
src/pkg/syscall/syscall_linux.go
View File

@ -19,6 +19,11 @@ const OS = "linux"
* Wrapped
*/
//sys open(path string, mode int, perm int) (fd int, errno int)
func Open(path string, mode int, perm int) (fd int, errno int) {
return open(path, mode|O_LARGEFILE, perm)
}
//sys pipe(p *[2]_C_int) (errno int)
func Pipe(p []int) (errno int) {
if len(p) != 2 {
@ -576,7 +581,6 @@ func PtraceDetach(pid int) (errno int) { return ptrace(PTRACE_DETACH, pid, 0, 0)
//sys Mknod(path string, mode int, dev int) (errno int)
//sys Mknodat(dirfd int, path string, mode int, dev int) (errno int)
//sys Nanosleep(time *Timespec, leftover *Timespec) (errno int)
//sys Open(path string, mode int, perm int) (fd int, errno int)
//sys Openat(dirfd int, path string, flags int, mode int) (fd int, errno int)
//sys Pause() (errno int)
//sys PivotRoot(newroot string, putold string) (errno int) = SYS_PIVOT_ROOT

33
src/pkg/syscall/zerrors_linux_386.go
View File

@ -1,7 +1,7 @@
// mkerrors.sh
// mkerrors.sh -f -m32
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
// godefs -gsyscall _const.c
// godefs -f -m32 -gsyscall -f -m32 _const.c
// MACHINE GENERATED - DO NOT EDIT.
@ -49,6 +49,7 @@ const (
EAFNOSUPPORT = 0x61
EAGAIN = 0xb
EALREADY = 0x72
EAX = 0x6
EBADE = 0x34
EBADF = 0x9
EBADFD = 0x4d
@ -57,7 +58,9 @@ const (
EBADRQC = 0x38
EBADSLT = 0x39
EBFONT = 0x3b
EBP = 0x5
EBUSY = 0x10
EBX = 0
ECANCELED = 0x7d
ECHILD = 0xa
ECHRNG = 0x2c
@ -65,15 +68,19 @@ const (
ECONNABORTED = 0x67
ECONNREFUSED = 0x6f
ECONNRESET = 0x68
ECX = 0x1
EDEADLK = 0x23
EDEADLOCK = 0x23
EDESTADDRREQ = 0x59
EDI = 0x4
EDOM = 0x21
EDOTDOT = 0x49
EDQUOT = 0x7a
EDX = 0x2
EEXIST = 0x11
EFAULT = 0xe
EFBIG = 0x1b
EFL = 0xe
EHOSTDOWN = 0x70
EHOSTUNREACH = 0x71
EIDRM = 0x2b
@ -82,6 +89,7 @@ const (
EINTR = 0x4
EINVAL = 0x16
EIO = 0x5
EIP = 0xc
EISCONN = 0x6a
EISDIR = 0x15
EISNAM = 0x78
@ -172,7 +180,9 @@ const (
EREMOTEIO = 0x79
ERESTART = 0x55
EROFS = 0x1e
ES = 0x8
ESHUTDOWN = 0x6c
ESI = 0x3
ESOCKTNOSUPPORT = 0x5e
ESPIPE = 0x1d
ESRCH = 0x3
@ -198,8 +208,8 @@ const (
F_GETFD = 0x1
F_GETFL = 0x3
F_GETLEASE = 0x401
F_GETLK = 0x5
F_GETLK64 = 0x5
F_GETLK = 0xc
F_GETLK64 = 0xc
F_GETOWN = 0x9
F_GETSIG = 0xb
F_LOCK = 0x1
@ -209,10 +219,10 @@ const (
F_SETFD = 0x2
F_SETFL = 0x4
F_SETLEASE = 0x400
F_SETLK = 0x6
F_SETLK64 = 0x6
F_SETLKW = 0x7
F_SETLKW64 = 0x7
F_SETLK = 0xd
F_SETLK64 = 0xd
F_SETLKW = 0xe
F_SETLKW64 = 0xe
F_SETOWN = 0x8
F_SETSIG = 0xa
F_SHLCK = 0x8
@ -344,7 +354,7 @@ const (
O_DSYNC = 0x1000
O_EXCL = 0x80
O_FSYNC = 0x1000
O_LARGEFILE = 0
O_LARGEFILE = 0x8000
O_NDELAY = 0x800
O_NOATIME = 0x40000
O_NOCTTY = 0x100
@ -356,7 +366,6 @@ const (
O_SYNC = 0x1000
O_TRUNC = 0x200
O_WRONLY = 0x1
PTRACE_ARCH_PRCTL = 0x1e
PTRACE_ATTACH = 0x10
PTRACE_CONT = 0x7
PTRACE_DETACH = 0x11
@ -396,6 +405,8 @@ const (
PTRACE_SET_THREAD_AREA = 0x1a
PTRACE_SINGLESTEP = 0x9
PTRACE_SYSCALL = 0x18
PTRACE_SYSEMU = 0x1f
PTRACE_SYSEMU_SINGLESTEP = 0x20
PTRACE_TRACEME = 0
SHUT_RD = 0
SHUT_RDWR = 0x2
@ -540,7 +551,7 @@ const (
WNOHANG = 0x1
WNOTHREAD = 0x20000000
WNOWAIT = 0x1000000
WORDSIZE = 0x40
WORDSIZE = 0x20
WSTOPPED = 0x2
WUNTRACED = 0x2
)

4
src/pkg/syscall/zerrors_linux_amd64.go
View File

@ -1,7 +1,7 @@
// mkerrors.sh
// mkerrors.sh -f -m64
// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
// godefs -gsyscall _const.c
// godefs -f -m64 -gsyscall -f -m64 _const.c
// MACHINE GENERATED - DO NOT EDIT.

14
src/pkg/syscall/zsyscall_linux_386.go
View File

@ -5,6 +5,13 @@ package syscall
import "unsafe"
func open(path string, mode int, perm int) (fd int, errno int) {
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(mode), uintptr(perm))
fd = int(r0)
errno = int(e1)
return
}
func pipe(p *[2]_C_int) (errno int) {
_, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
errno = int(e1)
@ -314,13 +321,6 @@ func Nanosleep(time *Timespec, leftover *Timespec) (errno int) {
return
}
func Open(path string, mode int, perm int) (fd int, errno int) {
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(mode), uintptr(perm))
fd = int(r0)
errno = int(e1)
return
}
func Openat(dirfd int, path string, flags int, mode int) (fd int, errno int) {
r0, _, e1 := Syscall6(SYS_OPENAT, uintptr(dirfd), uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(flags), uintptr(mode), 0, 0)
fd = int(r0)

14
src/pkg/syscall/zsyscall_linux_amd64.go
View File

@ -5,6 +5,13 @@ package syscall
import "unsafe"
func open(path string, mode int, perm int) (fd int, errno int) {
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(mode), uintptr(perm))
fd = int(r0)
errno = int(e1)
return
}
func pipe(p *[2]_C_int) (errno int) {
_, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
errno = int(e1)
@ -314,13 +321,6 @@ func Nanosleep(time *Timespec, leftover *Timespec) (errno int) {
return
}
func Open(path string, mode int, perm int) (fd int, errno int) {
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(mode), uintptr(perm))
fd = int(r0)
errno = int(e1)
return
}
func Openat(dirfd int, path string, flags int, mode int) (fd int, errno int) {
r0, _, e1 := Syscall6(SYS_OPENAT, uintptr(dirfd), uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(flags), uintptr(mode), 0, 0)
fd = int(r0)