893ab00439
Some Makefiles already pass -fno-stack-protector unconditionally. For example, arch/arm64/kernel/vdso/Makefile, arch/x86/xen/Makefile. No problem report so far about hard-coding this option. So, we can assume all supported compilers know -fno-stack-protector. GCC 4.8 and Clang support this option (https://godbolt.org/z/_HDGzN) Get rid of cc-option from -fno-stack-protector. Remove CONFIG_CC_HAS_STACKPROTECTOR_NONE, which is always 'y'. Note: arch/mips/vdso/Makefile adds -fno-stack-protector twice, first unconditionally, and second conditionally. I removed the second one. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> |
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| .. | ||
| asm | ||
| os-Linux | ||
| shared/sysdep | ||
| vdso | ||
| Kconfig | ||
| Makefile | ||
| bugs_32.c | ||
| bugs_64.c | ||
| checksum_32.S | ||
| delay.c | ||
| elfcore.c | ||
| fault.c | ||
| ldt.c | ||
| mem_32.c | ||
| mem_64.c | ||
| ptrace_32.c | ||
| ptrace_64.c | ||
| ptrace_user.c | ||
| setjmp_32.S | ||
| setjmp_64.S | ||
| signal.c | ||
| stub_32.S | ||
| stub_64.S | ||
| stub_segv.c | ||
| sys_call_table_32.c | ||
| sys_call_table_64.c | ||
| syscalls_32.c | ||
| syscalls_64.c | ||
| sysrq_32.c | ||
| sysrq_64.c | ||
| tls_32.c | ||
| tls_64.c | ||
| user-offsets.c | ||