| /* { dg-do run } */ | |
| /* { dg-require-effective-target fstack_protector } */ | |
| /* { dg-options "-fstack-protector-all -O2" } */ | |
| extern volatile long *stack_chk_guard_ptr; | |
| void __attribute__ ((noipa)) | |
| f (void) | |
| { | |
| volatile int x; | |
| /* Munging the contents of __stack_chk_guard should trigger a | |
| stack-smashing failure for this function. */ | |
| *stack_chk_guard_ptr += 1; | |
| } | |
| #define CHECK(REG) "\tcmp\tx0, " #REG "\n\tbeq\t1f\n" | |
| asm ( | |
| " .pushsection .data\n" | |
| " .align 3\n" | |
| "stack_chk_guard_ptr:\n" | |
| #if __ILP32__ | |
| " .word __stack_chk_guard\n" | |
| #else | |
| " .xword __stack_chk_guard\n" | |
| #endif | |
| " .weak __stack_chk_guard\n" | |
| "__stack_chk_guard:\n" | |
| " .word 0xdead4321\n" | |
| " .word 0xbeef8765\n" | |
| " .text\n" | |
| " .type __stack_chk_fail, %function\n" | |
| "__stack_chk_fail:\n" | |
| " mov x0, #0\n" | |
| " b exit\n" | |
| " .size __stack_chk_fail, .-__stack_chk_fail\n" | |
| " .popsection" | |
| ); | |
| int | |
| main (void) | |
| { | |
| f (); | |
| __builtin_abort (); | |
| } |