diff options
| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-03-25 16:45:16 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-03-27 16:26:10 -0700 |
| commit | 0d8c461adbc4a43736927f93db69ae376efbc2f1 (patch) | |
| tree | a9b09a5a4a9a26c9ca5e6e6697859ec59791b62d /tools/include | |
| parent | ff221a6d9ae8191c97d6578f2e1900db483a289d (diff) | |
tools/nolibc: x86_64: add stackprotector support
Enable the new stackprotector support for x86_64.
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')
| -rw-r--r-- | tools/include/nolibc/arch-x86_64.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/include/nolibc/arch-x86_64.h b/tools/include/nolibc/arch-x86_64.h index 17f6751208e7..f7f2a11d4c3b 100644 --- a/tools/include/nolibc/arch-x86_64.h +++ b/tools/include/nolibc/arch-x86_64.h @@ -181,6 +181,8 @@ struct sys_stat_struct { char **environ __attribute__((weak)); const unsigned long *_auxv __attribute__((weak)); +#define __ARCH_SUPPORTS_STACK_PROTECTOR + /* startup code */ /* * x86-64 System V ABI mandates: @@ -191,6 +193,9 @@ const unsigned long *_auxv __attribute__((weak)); void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) _start(void) { __asm__ volatile ( +#ifdef NOLIBC_STACKPROTECTOR + "call __stack_chk_init\n" // initialize stack protector +#endif "pop %rdi\n" // argc (first arg, %rdi) "mov %rsp, %rsi\n" // argv[] (second arg, %rsi) "lea 8(%rsi,%rdi,8),%rdx\n" // then a NULL then envp (third arg, %rdx) |