diff options
author | Joel Sing <joel@sing.id.au> | 2019-04-29 12:24:30 +1000 |
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committer | Brad Fitzpatrick <bradfitz@golang.org> | 2019-04-29 23:06:59 +0000 |
commit | 998cc2a1c5cad0e928f0ac07f69af36123192460 (patch) | |
tree | c60b94efe81e384ea30b2341a88c14fc62e212b8 /src/runtime/cgo | |
parent | 98c5a56f0178db479c71fa76b5791ce2fcfc58b9 (diff) | |
download | go-998cc2a1c5cad0e928f0ac07f69af36123192460.tar.gz go-998cc2a1c5cad0e928f0ac07f69af36123192460.zip |
cmd,runtime: enable cgo for openbsd/arm64
Updates #31656.
Change-Id: Ide6f829282fcdf20c67998b766a201a6a92c3035
Reviewed-on: https://go-review.googlesource.com/c/go/+/174132
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/runtime/cgo')
-rw-r--r-- | src/runtime/cgo/gcc_openbsd_arm64.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/runtime/cgo/gcc_openbsd_arm64.c b/src/runtime/cgo/gcc_openbsd_arm64.c new file mode 100644 index 0000000000..abf9f6660c --- /dev/null +++ b/src/runtime/cgo/gcc_openbsd_arm64.c @@ -0,0 +1,67 @@ +// 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. + +#include <sys/types.h> +#include <pthread.h> +#include <signal.h> +#include <string.h> +#include "libcgo.h" +#include "libcgo_unix.h" + +static void* threadentry(void*); +static void (*setg_gcc)(void*); + +void +x_cgo_init(G *g, void (*setg)(void*)) +{ + pthread_attr_t attr; + size_t size; + + setg_gcc = setg; + pthread_attr_init(&attr); + pthread_attr_getstacksize(&attr, &size); + g->stacklo = (uintptr)&attr - size + 4096; + pthread_attr_destroy(&attr); +} + +void +_cgo_sys_thread_start(ThreadStart *ts) +{ + pthread_attr_t attr; + sigset_t ign, oset; + pthread_t p; + size_t size; + int err; + + sigfillset(&ign); + pthread_sigmask(SIG_SETMASK, &ign, &oset); + + pthread_attr_init(&attr); + pthread_attr_getstacksize(&attr, &size); + + // Leave stacklo=0 and set stackhi=size; mstart will do the rest. + ts->g->stackhi = size; + err = _cgo_try_pthread_create(&p, &attr, threadentry, ts); + + pthread_sigmask(SIG_SETMASK, &oset, nil); + + if (err != 0) { + fprintf(stderr, "runtime/cgo: pthread_create failed: %s\n", strerror(err)); + abort(); + } +} + +extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g); + +static void* +threadentry(void *v) +{ + ThreadStart ts; + + ts = *(ThreadStart*)v; + free(v); + + crosscall1(ts.fn, setg_gcc, (void*)ts.g); + return nil; +} |