diff options
| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-05-24 08:44:44 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-06-09 11:46:08 -0700 |
| commit | e76b70dec9c257f4ccebd7f98d1de97ed071f0d1 (patch) | |
| tree | 456bf7d0012877ac615cb4264811d326d33c7718 /tools/include/nolibc/compiler.h | |
| parent | 0093c2dae8d37595c3c7fcc626b51300699a003b (diff) | |
tools/nolibc: fix segfaults on compilers without attribute no_stack_protector
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>
Diffstat (limited to 'tools/include/nolibc/compiler.h')
| -rw-r--r-- | tools/include/nolibc/compiler.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h index 57da75cea799..beddc3665d69 100644 --- a/tools/include/nolibc/compiler.h +++ b/tools/include/nolibc/compiler.h @@ -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 */ |