From 03934a56326d43c1c8bb185979a90830fd25f880 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Fri, 23 Mar 2012 18:41:07 +0000
Subject: [PATCH] syscall: Fix errno handling in syscall.Syscall and friends.
From-SVN: r185746
---
libgo/go/syscall/syscall_unix.go | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libgo/go/syscall/syscall_unix.go b/libgo/go/syscall/syscall_unix.go
index e3c6629ed077..d4bff9efc9c1 100644
--- a/libgo/go/syscall/syscall_unix.go
+++ b/libgo/go/syscall/syscall_unix.go
@@ -31,6 +31,7 @@ const darwinAMD64 = runtime.GOOS == "darwin" && runtime.GOARCH == "amd64"
// expects a 32-bit one.
func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) {
Entersyscall()
+ SetErrno(0)
var r uintptr
if unsafe.Sizeof(r) == 4 {
r1 := c_syscall32(int32(trap), int32(a1), int32(a2), int32(a3), 0, 0, 0)
@@ -46,6 +47,7 @@ func Syscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) {
func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) {
Entersyscall()
+ SetErrno(0)
var r uintptr
if unsafe.Sizeof(r) == 4 {
r1 := c_syscall32(int32(trap), int32(a1), int32(a2), int32(a3),
@@ -63,6 +65,7 @@ func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno)
func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) {
var r uintptr
+ SetErrno(0)
if unsafe.Sizeof(r) == 4 {
r1 := c_syscall32(int32(trap), int32(a1), int32(a2), int32(a3), 0, 0, 0)
r = uintptr(r1)
@@ -76,6 +79,7 @@ func RawSyscall(trap, a1, a2, a3 uintptr) (r1, r2 uintptr, err Errno) {
func RawSyscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) {
var r uintptr
+ SetErrno(0)
if unsafe.Sizeof(r) == 4 {
r1 := c_syscall32(int32(trap), int32(a1), int32(a2), int32(a3),
int32(a4), int32(a5), int32(a6))
--
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