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tools/nolibc: mips: add stackprotector support

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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 2023-04-17 18:01:36 +02:00 committed by Paul E. McKenney
parent ca2d043714
commit 3da0de377b
2 changed files with 8 additions and 1 deletions
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8
tools/include/nolibc/arch-mips.h
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@ -179,14 +179,20 @@ struct sys_stat_struct {
char **environ __attribute__((weak));
const unsigned long *_auxv __attribute__((weak));
#define __ARCH_SUPPORTS_STACK_PROTECTOR
/* startup code, note that it's called __start on MIPS */
void __attribute__((weak,noreturn,optimize("omit-frame-pointer"))) __start(void)
void __attribute__((weak,noreturn,optimize("omit-frame-pointer"),no_stack_protector)) __start(void)
{
__asm__ volatile (
/*".set nomips16\n"*/
".set push\n"
".set noreorder\n"
".option pic0\n"
#ifdef NOLIBC_STACKPROTECTOR
"jal __stack_chk_init\n" /* initialize stack protector */
"nop\n" /* delayed slot */
#endif
/*".ent __start\n"*/
/*"__start:\n"*/
"lw $a0,($sp)\n" /* argc was in the stack */

1
tools/testing/selftests/nolibc/Makefile
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@ -84,6 +84,7 @@ CFLAGS_STKP_x86_64 = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_x86 = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_arm64 = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_arm = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_mips = $(CFLAGS_STACKPROTECTOR)
CFLAGS_STKP_loongarch = $(CFLAGS_STACKPROTECTOR)
CFLAGS_s390 = -m64
CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 \