File: ldraa.c

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (31 lines) | stat: -rw-r--r-- 1,113 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
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