diff options
Diffstat (limited to 'src/pkg/runtime/cgo/gcc_dragonfly_386.c')
-rw-r--r-- | src/pkg/runtime/cgo/gcc_dragonfly_386.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/pkg/runtime/cgo/gcc_dragonfly_386.c b/src/pkg/runtime/cgo/gcc_dragonfly_386.c new file mode 100644 index 000000000..6797824c6 --- /dev/null +++ b/src/pkg/runtime/cgo/gcc_dragonfly_386.c @@ -0,0 +1,77 @@ +// Copyright 2009 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 <sys/signalvar.h> +#include <pthread.h> +#include <signal.h> +#include <string.h> +#include "libcgo.h" + +static void* threadentry(void*); +static void (*setmg_gcc)(void*, void*); + +void +x_cgo_init(G *g, void (*setmg)(void*, void*)) +{ + pthread_attr_t attr; + size_t size; + + setmg_gcc = setmg; + pthread_attr_init(&attr); + pthread_attr_getstacksize(&attr, &size); + g->stackguard = (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); + sigprocmask(SIG_SETMASK, &ign, &oset); + + pthread_attr_init(&attr); + pthread_attr_getstacksize(&attr, &size); + ts->g->stackguard = size; + err = pthread_create(&p, &attr, threadentry, ts); + + sigprocmask(SIG_SETMASK, &oset, nil); + + if (err != 0) { + fprintf(stderr, "runtime/cgo: pthread_create failed: %s\n", strerror(err)); + abort(); + } +} + +static void* +threadentry(void *v) +{ + ThreadStart ts; + + ts = *(ThreadStart*)v; + free(v); + + ts.g->stackbase = (uintptr)&ts; + + /* + * _cgo_sys_thread_start set stackguard to stack size; + * change to actual guard pointer. + */ + ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096; + + /* + * Set specific keys. + */ + setmg_gcc((void*)ts.m, (void*)ts.g); + + crosscall_386(ts.fn); + return nil; +} |