diff options
| -rw-r--r-- | src/runtime/cgo/gcc_linux_amd64.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/runtime/cgo/gcc_linux_amd64.c b/src/runtime/cgo/gcc_linux_amd64.c index c25e7e769b..fb164c1a1d 100644 --- a/src/runtime/cgo/gcc_linux_amd64.c +++ b/src/runtime/cgo/gcc_linux_amd64.c @@ -44,7 +44,9 @@ x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase) } pthread_attr_init(attr); pthread_attr_getstacksize(attr, &size); - g->stacklo = (uintptr)&size - size + 4096; + g->stacklo = (uintptr)__builtin_frame_address(0) - size + 4096; + if (g->stacklo >= g->stackhi) + fatalf("bad stack bounds: lo=%p hi=%p\n", g->stacklo, g->stackhi); pthread_attr_destroy(attr); free(attr); |