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tools/nolibc: fix segfaults on compilers without attribute no_stack_protector

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Not all compilers, notably GCC < 10, have support for
__attribute__((no_stack_protector)).
Fall back to a mechanism that also works there.

Tested with GCC 9.5.0 from kernel.org crosstools.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Thomas Weißschuh
2023-05-24 08:44:44 +02:00
committed by Paul E. McKenney
parent 0093c2dae8
commit e76b70dec9
9 changed files with 18 additions and 8 deletions
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10
tools/include/nolibc/compiler.h
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@@ -12,4 +12,14 @@
#endif /* defined(__SSP__) ... */
#if defined(__has_attribute)
# if __has_attribute(no_stack_protector)
# define __no_stack_protector __attribute__((no_stack_protector))
# else
# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector")))
# endif
#else
# define __no_stack_protector __attribute__((__optimize__("-fno-stack-protector")))
#endif /* defined(__has_attribute) */
#endif /* _NOLIBC_COMPILER_H */