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syscall: prlimit argument error for Getrlimit and Setrlimit on Linux 32-bit

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The rlimit arguments for prlimit are reversed for linux 32-bit (386 and arm).
Getrlimit becomes Setrlimit and vice versa.
Fixes #5949.

R=iant, mikioh.mikioh, rsc
CC=golang-dev
https://golang.org/cl/11803043
This commit is contained in:
Peter Mundy 2013-07-25 09:56:06 -04:00 committed by Russ Cox
parent d9d3debee5
commit 5852760088
3 changed files with 45 additions and 4 deletions
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41
src/pkg/syscall/rlimit_linux_test.go Normal file
View File

@ -0,0 +1,41 @@
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package syscall_test
import (
"syscall"
"testing"
)
func TestRlimit(t *testing.T) {
var rlimit, zero syscall.Rlimit
err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rlimit)
if err != nil {
t.Fatalf("Getrlimit: save failed: %v", err)
}
if zero == rlimit {
t.Fatalf("Getrlimit: save failed: got zero value %#v", rlimit)
}
set := rlimit
set.Cur = set.Max - 1
err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &set)
if err != nil {
t.Fatalf("Setrlimit: set failed: %#v %v", set, err)
}
var get syscall.Rlimit
err = syscall.Getrlimit(syscall.RLIMIT_NOFILE, &get)
if err != nil {
t.Fatalf("Getrlimit: get failed: %v", err)
}
set = rlimit
set.Cur = set.Max - 1
if set != get {
t.Fatalf("Rlimit: change failed: wanted %#v got %#v", set, get)
}
err = syscall.Setrlimit(syscall.RLIMIT_NOFILE, &rlimit)
if err != nil {
t.Fatalf("Setrlimit: restore failed: %#v %v", rlimit, err)
}
}

4
src/pkg/syscall/syscall_linux_386.go
View File

@ -78,7 +78,7 @@ const rlimInf32 = ^uint32(0)
const rlimInf64 = ^uint64(0) const rlimInf64 = ^uint64(0)
func Getrlimit(resource int, rlim *Rlimit) (err error) { func Getrlimit(resource int, rlim *Rlimit) (err error) {
err = prlimit(0, resource, rlim, nil) err = prlimit(0, resource, nil, rlim)
if err != ENOSYS { if err != ENOSYS {
return err return err
} }
@ -106,7 +106,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT //sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
func Setrlimit(resource int, rlim *Rlimit) (err error) { func Setrlimit(resource int, rlim *Rlimit) (err error) {
err = prlimit(0, resource, nil, rlim) err = prlimit(0, resource, rlim, nil)
if err != ENOSYS { if err != ENOSYS {
return err return err
} }

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

@ -119,7 +119,7 @@ const rlimInf32 = ^uint32(0)
const rlimInf64 = ^uint64(0) const rlimInf64 = ^uint64(0)
func Getrlimit(resource int, rlim *Rlimit) (err error) { func Getrlimit(resource int, rlim *Rlimit) (err error) {
err = prlimit(0, resource, rlim, nil) err = prlimit(0, resource, nil, rlim)
if err != ENOSYS { if err != ENOSYS {
return err return err
} }
@ -147,7 +147,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
//sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT //sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
func Setrlimit(resource int, rlim *Rlimit) (err error) { func Setrlimit(resource int, rlim *Rlimit) (err error) {
err = prlimit(0, resource, nil, rlim) err = prlimit(0, resource, rlim, nil)
if err != ENOSYS { if err != ENOSYS {
return err return err
} }