mirror of
https://github.com/golang/go
synced 2024-10-03 14:21:22 -06:00
9536480edc
Always process the DWARF info, even when the const value is determined using the debug data block. This ensures that the injected enum is removed and future loads of the same constant do not trigger inconsistent definitions. Add tests for issues 2470 and 4054. Fixes #4054. R=golang-dev, fullung, dave, rsc, minux.ma CC=golang-dev https://golang.org/cl/6501101
154 lines
2.5 KiB
Go
154 lines
2.5 KiB
Go
// Copyright 2010 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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// Basic test cases for cgo.
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package cgotest
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/*
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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#include <errno.h>
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#define SHIFT(x, y) ((x)<<(y))
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#define KILO SHIFT(1, 10)
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#define UINT32VAL 0xc008427bU
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enum E {
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Enum1 = 1,
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Enum2 = 2,
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};
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typedef unsigned char cgo_uuid_t[20];
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void uuid_generate(cgo_uuid_t x) {
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x[0] = 0;
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}
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struct S {
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int x;
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};
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extern enum E myConstFunc(struct S* const ctx, int const id, struct S **const filter);
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enum E myConstFunc(struct S *const ctx, int const id, struct S **const filter) { return 0; }
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// issue 1222
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typedef union {
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long align;
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} xxpthread_mutex_t;
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struct ibv_async_event {
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union {
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int x;
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} element;
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};
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struct ibv_context {
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xxpthread_mutex_t mutex;
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};
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int add(int x, int y) {
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return x+y;
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};
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*/
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import "C"
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import (
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"syscall"
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"testing"
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"unsafe"
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)
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const EINVAL = C.EINVAL /* test #define */
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var KILO = C.KILO
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func uuidgen() {
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var uuid C.cgo_uuid_t
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C.uuid_generate(&uuid[0])
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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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C.free(unsafe.Pointer(p))
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return int(n), err
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}
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func Atol(s string) int {
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p := C.CString(s)
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n := C.atol(p)
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C.free(unsafe.Pointer(p))
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return int(n)
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}
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func testConst(t *testing.T) {
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C.myConstFunc(nil, 0, nil)
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}
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func testEnum(t *testing.T) {
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if C.Enum1 != 1 || C.Enum2 != 2 {
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t.Error("bad enum", C.Enum1, C.Enum2)
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}
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}
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func testAtol(t *testing.T) {
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l := Atol("123")
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if l != 123 {
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t.Error("Atol 123: ", l)
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}
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}
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func testErrno(t *testing.T) {
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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 != syscall.ENOENT {
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t.Fatalf("C.fopen: unexpected error: %v", err)
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}
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}
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func testMultipleAssign(t *testing.T) {
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p := C.CString("234")
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n, m := C.strtol(p, nil, 345), C.strtol(p, nil, 10)
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if n != 0 || m != 234 {
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t.Fatal("Strtol x2: ", n, m)
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}
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C.free(unsafe.Pointer(p))
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}
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var (
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cuint = (C.uint)(0)
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culong C.ulong
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cchar C.char
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)
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type Context struct {
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ctx *C.struct_ibv_context
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}
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func benchCgoCall(b *testing.B) {
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const x = C.int(2)
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const y = C.int(3)
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for i := 0; i < b.N; i++ {
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C.add(x, y)
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}
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}
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// Issue 2470.
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func testUnsignedInt(t *testing.T) {
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a := (int64)(C.UINT32VAL)
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b := (int64)(0xc008427b)
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if a != b {
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t.Errorf("Incorrect unsigned int - got %x, want %x", a, b)
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}
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}
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