| // Copyright 2020 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 main |
| |
| // Test passing C struct to exported Go function. |
| |
| /* |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| // T is a C struct with alignment padding after b. |
| // The padding bytes are not considered initialized by MSAN. |
| // It is big enough to be passed on stack in C ABI (and least |
| // on AMD64). |
| typedef struct { char b; uintptr_t x, y; } T; |
| |
| extern void F(T); |
| |
| // Use weak as a hack to permit defining a function even though we use export. |
| void CF(int x) __attribute__ ((weak)); |
| void CF(int x) { |
| T *t = malloc(sizeof(T)); |
| t->b = (char)x; |
| t->x = x; |
| t->y = x; |
| F(*t); |
| } |
| */ |
| import "C" |
| |
| //export F |
| func F(t C.T) { println(t.b, t.x, t.y) } |
| |
| func main() { |
| C.CF(C.int(0)) |
| } |
