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runtime/cgo: use pthread_get_stacksize_np to get stack size on darwin

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This commit is contained in:
Youlin Feng 2022-07-07 22:34:10 +08:00
parent 3c8353502b
commit b29c74599e
2 changed files with 10 additions and 23 deletions
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23
src/runtime/cgo/gcc_darwin_amd64.c
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@ -14,19 +14,12 @@ static void (*setg_gcc)(void*);
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
pthread_attr_t attr;
size_t size, cur;
size_t size;
setg_gcc = setg;
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
cur = pthread_get_stacksize_np(pthread_self());
if (cur > size) {
size = cur;
}
g->stacklo = (uintptr)&attr - size + 4096;
pthread_attr_destroy(&attr);
size = pthread_get_stacksize_np(pthread_self());
g->stacklo = (uintptr)&size - size + 4096;
}
@ -36,19 +29,15 @@ _cgo_sys_thread_start(ThreadStart *ts)
pthread_attr_t attr;
sigset_t ign, oset;
pthread_t p;
size_t size, cur;
size_t size;
int err;
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
size = pthread_get_stacksize_np(pthread_self());
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
cur = pthread_get_stacksize_np(pthread_self());
if (cur > size) {
size = cur;
pthread_attr_setstacksize(&attr, size);
}
pthread_attr_setstacksize(&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);

10
src/runtime/cgo/gcc_darwin_arm64.c
View File

@ -36,8 +36,9 @@ _cgo_sys_thread_start(ThreadStart *ts)
sigfillset(&ign);
pthread_sigmask(SIG_SETMASK, &ign, &oset);
size = pthread_get_stacksize_np(pthread_self());
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
pthread_attr_setstacksize(&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);
@ -126,15 +127,12 @@ init_working_dir()
void
x_cgo_init(G *g, void (*setg)(void*))
{
pthread_attr_t attr;
size_t size;
//fprintf(stderr, "x_cgo_init = %p\n", &x_cgo_init); // aid debugging in presence of ASLR
setg_gcc = setg;
pthread_attr_init(&attr);
pthread_attr_getstacksize(&attr, &size);
g->stacklo = (uintptr)&attr - size + 4096;
pthread_attr_destroy(&attr);
size = pthread_get_stacksize_np(pthread_self());
g->stacklo = (uintptr)&size - size + 4096;
#if TARGET_OS_IPHONE
darwin_arm_init_mach_exception_handler();