29 lines · c
1void foo() {}2 3int main() {4 //% self.filecheck("c", "blraa.c")5 // CHECK: stop reason = EXC_BAD_ACCESS6 // CHECK-NEXT: Note: Possible pointer authentication failure detected.7 // CHECK-NEXT: Found authenticated indirect branch at address=0x{{.*}} (blraa.c:[[@LINE+1]]:3).8 asm volatile (9 "mov x9, #0xbad \n"10 "blraa %[target], x9 \n"11 /* Outputs */ :12 /* Inputs */ : [target] "r"(&foo)13 /* Clobbers */ : "x9"14 );15 16 return 1;17}18 19// Expected codegen and exception message without ptrauth diagnostics:20// * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x2000000100007f9c)21// frame #0: 0x0000000100007f9c blraa2`foo22// blraa2`foo:23// 0x100007f9c <+0>: ret24//25// blraa2`main:26// 0x100007fa0 <+0>: nop27// 0x100007fa4 <+4>: ldr x8, #0x5c28// 0x100007fa8 <+8>: mov x9, #0xbad29