https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107491
--- Comment #6 from Jakub Kulik <jakub.kulik at oracle dot com> ---
So, I tested it with the following simple change and it works nicely:
--- gcc-12.2.0/libgo/runtime/proc.c
+++ gcc-12.2.0/libgo/runtime/proc.c
@@ -798,7 +798,15 @@ runtime_malg(bool allocatestack, bool si
}
newg = allocg();
if(allocatestack) {
- stacksize = StackMin;
+ char* res = getenv("GCCGO_MIN_STACK_SIZE");
+ if (res) {
+ stacksize = atoi(res) * 1024 * 1024;
+
+ if (stacksize < StackMin)
+ stacksize = StackMin;
+ } else {
+ stacksize = StackMin;
+ }
if(signalstack) {
stacksize = 32 * 1024; // OS X wants >= 8K, GNU/Linux
>= 2K
#ifdef SIGSTKSZ
As said, it's not the right solution, but it's an improvement.
As for the split stack, I am wondering whether it is possible to do it without
linker support? IIUIC, gold makes sure then when split stack code calls a non
split stack one, much bigger stack is available. But if we make sure that the
headroom is big enough all the time, then it might work without the linker
support as well.
