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misc/cgo/test: make tests run on windows
- use proper Win64 gcc calling convention when calling initcgo on amd64 - increase g0 stack size to 64K on amd64 to make it the same as 386 - implement C.sleep - do not use C.stat, since it is renamed to C._stat by mingw - use fopen to implement TestErrno, since C.strtol always succeeds on windows - skip TestSetEnv on windows, because os.Setenv sets windows process environment, while C.getenv inspects internal C runtime variable instead R=golang-dev, vcc.163, rsc CC=golang-dev https://golang.org/cl/5500094
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@ -25,4 +25,21 @@ CGO_OFILES=\
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OFILES=\
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runtime.$O\
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ifeq ($(GOOS),windows)
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GCCVERSION=$(shell gcc -dumpversion)
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ifeq ($(GOARCH),386)
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GCCLIBDIR=/mingw/lib/gcc/mingw32/$(GCCVERSION)
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CHKSTK=_chkstk.o
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else
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GCCLIBDIR=/mingw/lib/gcc/x86_64-w64-mingw32/$(GCCVERSION)
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CHKSTK=_chkstk_ms.o
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endif
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CGOFILES+=sleep_windows.go
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CGO_OFILES+=$(CHKSTK)
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$(CHKSTK):
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ar -x "$(GCCLIBDIR)/libgcc.a" $@
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endif
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include ../../../src/Make.pkg
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@ -69,17 +69,6 @@ func uuidgen() {
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C.uuid_generate(&uuid[0])
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}
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func Size(name string) (int64, error) {
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var st C.struct_stat
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p := C.CString(name)
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_, err := C.stat(p, &st)
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C.free(unsafe.Pointer(p))
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if err != nil {
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return 0, err
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}
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return int64(C.ulong(st.st_size)), nil
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}
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func Strtol(s string, base int) (int, error) {
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p := C.CString(s)
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n, err := C.strtol(p, nil, C.int(base))
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@ -112,9 +101,17 @@ func testAtol(t *testing.T) {
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}
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func testErrno(t *testing.T) {
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n, err := Strtol("asdf", 123)
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if n != 0 || err != os.EINVAL {
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t.Error("Strtol: ", n, err)
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p := C.CString("no-such-file")
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m := C.CString("r")
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f, err := C.fopen(p, m)
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C.free(unsafe.Pointer(p))
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C.free(unsafe.Pointer(m))
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if err == nil {
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C.fclose(f)
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t.Fatalf("C.fopen: should fail")
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}
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if err != os.ENOENT {
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t.Fatalf("C.fopen: unexpected error: ", err)
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}
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}
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@ -10,12 +10,21 @@ package cgotest
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import "C"
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import (
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"os"
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"runtime"
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"testing"
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"unsafe"
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)
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// This is really an os package test but here for convenience.
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func testSetEnv(t *testing.T) {
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if runtime.GOOS == "windows" {
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// Go uses SetEnvironmentVariable on windows. Howerver,
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// C runtime takes a *copy* at process startup of thei
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// OS environment, and stores it in environ/envp.
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// It is this copy that getenv/putenv manipulate.
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t.Logf("skipping test")
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return
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}
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const key = "CGO_OS_TEST_KEY"
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const val = "CGO_OS_TEST_VALUE"
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os.Setenv(key, val)
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@ -7,6 +7,8 @@ package cgotest
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/*
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#include <unistd.h>
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unsigned int sleep(unsigned int seconds);
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extern void BackgroundSleep(int);
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void twoSleep(int n) {
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BackgroundSleep(n);
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16
misc/cgo/test/sleep_windows.go
Normal file
16
misc/cgo/test/sleep_windows.go
Normal file
@ -0,0 +1,16 @@
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cgotest
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/*
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#include <windows.h>
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unsigned int sleep(unsigned int seconds) {
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Sleep(1000 * seconds);
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return 0;
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}
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*/
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import "C"
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@ -16,7 +16,7 @@ TEXT _rt0_amd64(SB),7,$-8
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// create istack out of the given (operating system) stack.
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// initcgo may update stackguard.
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MOVQ $runtime·g0(SB), DI
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LEAQ (-8192+104)(SP), BX
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LEAQ (-64*1024+104)(SP), BX
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MOVQ BX, g_stackguard(DI)
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MOVQ SP, g_stackbase(DI)
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@ -24,7 +24,9 @@ TEXT _rt0_amd64(SB),7,$-8
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MOVQ initcgo(SB), AX
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TESTQ AX, AX
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JZ needtls
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CALL AX // g0 already in DI
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// g0 already in DI
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MOVQ DI, CX // Win64 uses CX for first parameter
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CALL AX
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CMPL runtime·iswindows(SB), $0
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JEQ ok
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@ -97,7 +97,6 @@ gomake clean
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) || exit $?
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[ "$CGO_ENABLED" != 1 ] ||
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[ "$GOHOSTOS" == windows ] ||
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(xcd ../misc/cgo/test
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gomake clean
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gotest
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