From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- src/runtime/cgo/gcc_aix_ppc64.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/runtime/cgo/gcc_aix_ppc64.c (limited to 'src/runtime/cgo/gcc_aix_ppc64.c') diff --git a/src/runtime/cgo/gcc_aix_ppc64.c b/src/runtime/cgo/gcc_aix_ppc64.c new file mode 100644 index 0000000..9dd9524 --- /dev/null +++ b/src/runtime/cgo/gcc_aix_ppc64.c @@ -0,0 +1,35 @@ +// 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. + +/* + * 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() { + _rt0_ppc64_aix_lib(); +} -- cgit v1.2.3