在 2025-7-13 21:25, Pali Rohár 写道:
And throws warning: ‘no_stack_protector’ attribute directive ignored [-Wattributes]If I understand correctly the code at 3d-4c is the stack protection check, which should have been disabled for that function. But because the ___stack_chk_guard is being changed in the function, it cause calling the ___stack_chk_fail. So the warning is NOT harmless and cannot be ignored. It is a real issue.
The CRT should not be built with stack protector.Otherwise, even if we don't use the attribute there and don't see a warning, compiling the CRT with GCC 8 and with `-fstack-protector` will still cause crashes.
One possible workaround is to introduce a specific Makefile recipe for 'stack_chk_guard.c' which doesn't use `CFLAGS`. However as said above, just don't build the CRT with stack protector.
-- Best regards, LIU Hao
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