blob: f4f50b89ce0411cea1a372918231255b1f68c93b [file] [log] [blame]
// Copyright 2019 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.
// +build aix
// +build ppc64 ppc64le
* On AIX, call to _cgo_topofstack and Go main are forced to be a longcall.
* Without it, ld might add trampolines in the middle of .text section
* to reach these functions which are normally declared in runtime package.
extern int __attribute__((longcall)) __cgo_topofstack(void);
extern int __attribute__((longcall)) runtime_rt0_go(int argc, char **argv);
extern void __attribute__((longcall)) _rt0_ppc64_aix_lib(void);
int _cgo_topofstack(void) {
return __cgo_topofstack();
int main(int argc, char **argv) {
return runtime_rt0_go(argc, argv);
static void libinit(void) __attribute__ ((constructor));
* libinit aims to replace .init_array section which isn't available on aix.
* Using __attribute__ ((constructor)) let gcc handles this instead of
* adding special code in cmd/link.
* However, it will be called for every Go programs which has cgo.
* Inside _rt0_ppc64_aix_lib(), runtime.isarchive is checked in order
* to know if this program is a c-archive or a simple cgo program.
* If it's not set, _rt0_ppc64_ax_lib() returns directly.
static void libinit() {