diff options
| author | Zhangjin Wu <falcon@tinylab.org> | 2023-07-16 02:23:21 +0800 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2023-08-23 04:40:22 +0200 |
| commit | 06f2a62c81336574b08827a29a817b4250a310ed (patch) | |
| tree | 1d0473cf6545e29573fe92b3bfe325c452a7d428 /tools/include | |
| parent | d7f16723d37c6aeaa4fb93b433db367ad8398b9c (diff) | |
tools/nolibc: crt.h: initialize stack protector
As suggested by Thomas, It is able to move the stackprotector
initialization from the assembly _start to the beginning of the new
_start_c(). Let's call __stack_chk_init() in _start_c() as a
preparation.
Suggested-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/a00284a6-54b1-498c-92aa-44997fa78403@t-8ch.de/
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/nolibc/crt.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/include/nolibc/crt.h b/tools/include/nolibc/crt.h index 92a2a0478cb1..32e128b0fb62 100644 --- a/tools/include/nolibc/crt.h +++ b/tools/include/nolibc/crt.h @@ -10,6 +10,7 @@ char **environ __attribute__((weak)); const unsigned long *_auxv __attribute__((weak)); +void __stack_chk_init(void); static void exit(int); void _start_c(long *sp) @@ -21,6 +22,9 @@ void _start_c(long *sp) /* silence potential warning: conflicting types for 'main' */ int _nolibc_main(int, char **, char **) __asm__ ("main"); + /* initialize stack protector */ + __stack_chk_init(); + /* * sp : argc <-- argument count, required by main() * argv: argv[0] <-- argument vector, required by main() |