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Commit 8ec32e8d authored by Lucio De Re's avatar Lucio De Re Committed by Russ Cox
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syscall: fix for Plan 9 build 

exec_plan9.go:
. Adjusted return argument to match other changes.
#mksyscall.pl:
. Replaced "err = e1" with "err = NewError(e1)".
* Change abandoned, Russ made a better suggestion involving
  syscall_plan9.go.
syscall_plan9.go:
. Removed redundant "err = nil" lines.
. Adjusted //sys lines for mksyscall.pl.
* Replaced "err string" with "err ErrorString" in return arguments.
zsyscall_plan9_386.go:
. This module ought to be generated, but as it exists in the
  repository, I rebuilt it and checked that it matched expectations.
  Anybody is welcome to remove this from the repository if
  they feel it should go, but remember that not all Plan 9
  installations have a working Perl.

R=rsc
CC=ality, golang-dev
https://golang.org/cl/5411046
parent 2e9d7a6d
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Inline Side-by-side
Showing with 37 additions and 68 deletions
src/pkg/syscall/exec_plan9.go
View file @ 8ec32e8d
......@@ -516,10 +516,10 @@ func Exec(argv0 string, argv []string, envv []string) (err error) {
}
}
_, _, e := Syscall(SYS_EXEC,
_, _, e1 := Syscall(SYS_EXEC,
uintptr(unsafe.Pointer(StringBytePtr(argv0))),
uintptr(unsafe.Pointer(&StringSlicePtr(argv)[0])),
0)
return NewError(e)
return e1
}
src/pkg/syscall/syscall_plan9.go
View file @ 8ec32e8d
......@@ -38,8 +38,8 @@ var (
// creation of IPv6 sockets to return EAFNOSUPPORT.
var SocketDisableIPv6 bool
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err string)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err string)
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err ErrorString)
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err ErrorString)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2, err uintptr)
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
......@@ -170,7 +170,6 @@ func seek(placeholder uintptr, fd int, offset int64, whence int) (newoffset int6
func Seek(fd int, offset int64, whence int) (newoffset int64, err error) {
newoffset, e := seek(0, fd, offset, whence)
err = nil
if newoffset == -1 {
err = NewError(e)
}
......@@ -246,7 +245,7 @@ func Unmount(name, old string) (err error) {
oldp := uintptr(unsafe.Pointer(StringBytePtr(old)))
var r0 uintptr
var e string
var e ErrorString
// bind(2) man page: If name is zero, everything bound or mounted upon old is unbound or unmounted.
if name == "" {
......@@ -255,9 +254,8 @@ func Unmount(name, old string) (err error) {
r0, _, e = Syscall(SYS_UNMOUNT, uintptr(unsafe.Pointer(StringBytePtr(name))), oldp, 0)
}
err = nil
if int(r0) == -1 {
err = NewError(e)
err = e
}
return
}
......@@ -288,7 +286,6 @@ func DecodeBintime(b []byte) (nsec int64, err error) {
if len(b) != 8 {
return -1, NewError("bad /dev/bintime format")
}
err = nil
nsec = int64(b[0])<<56 |
int64(b[1])<<48 |
int64(b[2])<<40 |
......@@ -335,17 +332,17 @@ func Getgroups() (gids []int, err error) {
return make([]int, 0), nil
}
//sys Dup(oldfd int, newfd int) (fd int, err Error)
//sys Open(path string, mode int) (fd int, err Error)
//sys Create(path string, mode int, perm uint32) (fd int, err Error)
//sys Remove(path string) (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 Close(fd int) (err Error)
//sys Chdir(path string) (err Error)
//sys Bind(name string, old string, flag int) (err Error)
//sys Mount(fd int, afd int, old string, flag int, aname string) (err Error)
//sys Stat(path string, edir []byte) (n int, err Error)
//sys Fstat(fd int, edir []byte) (n int, err Error)
//sys Wstat(path string, edir []byte) (err Error)
//sys Fwstat(fd int, edir []byte) (err Error)
//sys Dup(oldfd int, newfd int) (fd int, err error)
//sys Open(path string, mode int) (fd int, err error)
//sys Create(path string, mode int, perm uint32) (fd int, err error)
//sys Remove(path string) (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 Close(fd int) (err error)
//sys Chdir(path string) (err error)
//sys Bind(name string, old string, flag int) (err error)
//sys Mount(fd int, afd int, old string, flag int, aname string) (err error)
//sys Stat(path string, edir []byte) (n int, err error)
//sys Fstat(fd int, edir []byte) (n int, err error)
//sys Wstat(path string, edir []byte) (err error)
//sys Fwstat(fd int, edir []byte) (err error)
src/pkg/syscall/zsyscall_plan9_386.go
View file @ 8ec32e8d
......@@ -22,9 +22,8 @@ func fd2path(fd int, buf []byte) (err error) {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FD2PATH, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -33,20 +32,8 @@ func fd2path(fd int, buf []byte) (err error) {
func pipe(p *[2]_C_int) (err error) {
r0, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func sleep(millisecs int32) (err error) {
r0, _, e1 := Syscall(SYS_SLEEP, uintptr(millisecs), 0, 0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -62,9 +49,8 @@ func await(s []byte) (n int, err error) {
}
r0, _, e1 := Syscall(SYS_AWAIT, uintptr(_p0), uintptr(len(s)), 0)
n = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -74,9 +60,8 @@ func await(s []byte) (n int, err error) {
func Dup(oldfd int, newfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -86,9 +71,8 @@ func Dup(oldfd int, newfd int) (fd int, err error) {
func Open(path string, mode int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_OPEN, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(mode), 0)
fd = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -98,9 +82,8 @@ func Open(path string, mode int) (fd int, err error) {
func Create(path string, mode int, perm uint32) (fd int, err error) {
r0, _, e1 := Syscall(SYS_CREATE, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(mode), uintptr(perm))
fd = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -109,9 +92,8 @@ func Create(path string, mode int, perm uint32) (fd int, err error) {
func Remove(path string) (err error) {
r0, _, e1 := Syscall(SYS_REMOVE, uintptr(unsafe.Pointer(StringBytePtr(path))), 0, 0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -127,9 +109,8 @@ func Pread(fd int, p []byte, offset int64) (n int, err error) {
}
r0, _, e1 := Syscall6(SYS_PREAD, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -145,9 +126,8 @@ func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
}
r0, _, e1 := Syscall6(SYS_PWRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(offset), uintptr(offset>>32), 0)
n = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -156,9 +136,8 @@ func Pwrite(fd int, p []byte, offset int64) (n int, err error) {
func Close(fd int) (err error) {
r0, _, e1 := Syscall(SYS_CLOSE, uintptr(fd), 0, 0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -167,9 +146,8 @@ func Close(fd int) (err error) {
func Chdir(path string) (err error) {
r0, _, e1 := Syscall(SYS_CHDIR, uintptr(unsafe.Pointer(StringBytePtr(path))), 0, 0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -178,9 +156,8 @@ func Chdir(path string) (err error) {
func Bind(name string, old string, flag int) (err error) {
r0, _, e1 := Syscall(SYS_BIND, uintptr(unsafe.Pointer(StringBytePtr(name))), uintptr(unsafe.Pointer(StringBytePtr(old))), uintptr(flag))
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -189,9 +166,8 @@ func Bind(name string, old string, flag int) (err error) {
func Mount(fd int, afd int, old string, flag int, aname string) (err error) {
r0, _, e1 := Syscall6(SYS_MOUNT, uintptr(fd), uintptr(afd), uintptr(unsafe.Pointer(StringBytePtr(old))), uintptr(flag), uintptr(unsafe.Pointer(StringBytePtr(aname))), 0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -207,9 +183,8 @@ func Stat(path string, edir []byte) (n int, err error) {
}
r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -225,9 +200,8 @@ func Fstat(fd int, edir []byte) (n int, err error) {
}
r0, _, e1 := Syscall(SYS_FSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
n = int(r0)
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -242,9 +216,8 @@ func Wstat(path string, edir []byte) (err error) {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_WSTAT, uintptr(unsafe.Pointer(StringBytePtr(path))), uintptr(_p0), uintptr(len(edir)))
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
......@@ -259,9 +232,8 @@ func Fwstat(fd int, edir []byte) (err error) {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall(SYS_FWSTAT, uintptr(fd), uintptr(_p0), uintptr(len(edir)))
err = nil
if int(r0) == -1 {
err = NewError(e1)
err = e1
}
return
}
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