Commit 3da0de37 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Paul E. McKenney
Browse files

tools/nolibc: mips: add stackprotector support 



Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent ca2d0437

tools/include/nolibc/arch-mips.h

+7 −1
Original line number Diff line number Diff line
@@ -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                               */

tools/testing/selftests/nolibc/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -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 \