mirror of
https://github.com/golang/go
synced 2024-11-24 07:40:17 -07:00
2c2770c3d4
Fixes #10303. Change-Id: Ia68d3566ba3ebeea6e18e388446bd9b8c431e156 Reviewed-on: https://go-review.googlesource.com/10814 Reviewed-by: Ian Lance Taylor <iant@golang.org>
71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
// Copyright 2015 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.
|
|
|
|
// Issue 10303. Pointers passed to C were not marked as escaping (bug in cgo).
|
|
|
|
package cgotest
|
|
|
|
/*
|
|
typedef int *intptr;
|
|
|
|
void setintstar(int *x) {
|
|
*x = 1;
|
|
}
|
|
|
|
void setintptr(intptr x) {
|
|
*x = 1;
|
|
}
|
|
|
|
void setvoidptr(void *x) {
|
|
*(int*)x = 1;
|
|
}
|
|
|
|
typedef struct Struct Struct;
|
|
struct Struct {
|
|
int *P;
|
|
};
|
|
|
|
void setstruct(Struct s) {
|
|
*s.P = 1;
|
|
}
|
|
|
|
*/
|
|
import "C"
|
|
|
|
import (
|
|
"testing"
|
|
"unsafe"
|
|
)
|
|
|
|
func test10303(t *testing.T, n int) {
|
|
// Run at a few different stack depths just to avoid an unlucky pass
|
|
// due to variables ending up on different pages.
|
|
if n > 0 {
|
|
test10303(t, n-1)
|
|
}
|
|
if t.Failed() {
|
|
return
|
|
}
|
|
var x, y, z, v, si C.int
|
|
var s C.Struct
|
|
C.setintstar(&x)
|
|
C.setintptr(&y)
|
|
C.setvoidptr(unsafe.Pointer(&v))
|
|
s.P = &si
|
|
C.setstruct(s)
|
|
|
|
if uintptr(unsafe.Pointer(&x))&^0xfff == uintptr(unsafe.Pointer(&z))&^0xfff {
|
|
t.Error("C int* argument on stack")
|
|
}
|
|
if uintptr(unsafe.Pointer(&y))&^0xfff == uintptr(unsafe.Pointer(&z))&^0xfff {
|
|
t.Error("C intptr argument on stack")
|
|
}
|
|
if uintptr(unsafe.Pointer(&v))&^0xfff == uintptr(unsafe.Pointer(&z))&^0xfff {
|
|
t.Error("C void* argument on stack")
|
|
}
|
|
if uintptr(unsafe.Pointer(&si))&^0xfff == uintptr(unsafe.Pointer(&z))&^0xfff {
|
|
t.Error("C struct field pointer on stack")
|
|
}
|
|
}
|