int main() {
//% self.filecheck("c", "ldraa.c")
// CHECK: EXC_BAD_ACCESS
// CHECK-NEXT: Note: Possible pointer authentication failure detected.
// CHECK-NEXT: Found authenticated load instruction at address=0x{{.*}} (ldraa.c:[[@LINE+3]]:3).
long long foo = 0;
asm volatile (
"ldraa x9, [%[target]] \n"
/* Outputs */ :
/* Inputs */ : [target] "r"(&foo)
/* Clobbers */ :
);
return 1;
}
// Expected codegen, register state, and exception message without ptrauth diagnostics:
// * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x2000016fdffc38)
// frame #0: 0x0000000100007fa8 ldraa`main + 12
// ldraa`main:
// -> 0x100007fa8 <+12>: ldraa x9, [x8]
// 0x100007fac <+16>: orr w0, wzr, #0x1
// 0x100007fb0 <+20>: add sp, sp, #0x10 ; =0x10
// 0x100007fb4 <+24>: ret
// Target 0: (ldraa) stopped.
// (lldb) p/x $x8
// (unsigned long) $0 = 0x000000016fdffc38
// (lldb) x/8 $x8
// 0x16fdffc38: 0x00000000 0x00000000 0x80254f30 0x00000001
// 0x16fdffc48: 0x00000000 0x00000000 0x00000000 0x00000000