https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90983
--- Comment #5 from Torsten Robitzki <Torsten at Robitzki dot de> ---
(In reply to Martin Sebor from comment #4)
> Using a very large -Wstack-usage argument should effectively disable the
> warning. E.g., -Wstack-usage=4EiB or -Wstack-usage=$(getconf ULONG_MAX).
Unfortunately, not when the stack usage is reported as unbound:
#include <alloca.h>
int foo(int i)
{
void* p = alloca(i);
return p != 0;
}
int main()
{
foo(4000);
return 0;
}
$ arm-none-eabi-gcc t.c -Wstack-usage=200 -Wstack-usage=4EiB
t.c: In function 'foo':
t.c:3:5: warning: stack usage might be unbounded [-Wstack-usage=]
3 | int foo(int i)
| ^~~
