src/compiler-rt/test/asan/TestCases/Linux/clang_gcc_abi.cc

   1 // RUN: %clangxx_asan -O0 -x c %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 // RUN: %clangxx_asan -O1 -x c %s -o %t && not %run %t 2>&1 | FileCheck %s
   3 // RUN: %clangxx_asan -O2 -x c %s -o %t && not %run %t 2>&1 | FileCheck %s
   4 // RUN: %clangxx_asan -O3 -x c %s -o %t && not %run %t 2>&1 | FileCheck %s
   5
   6 // REQUIRES: arm-supported-target
   7 // XFAIL: armv7l-unknown-linux-gnueabihf
   8
   9 #include <stdlib.h>
  10
  11 __attribute__((noinline))
  12 int boom() {
  13   volatile int three = 3;
  14   char * volatile s = (char *)malloc(three);
  15 // CHECK: #1 0x{{.*}} in boom {{.*}}clang_gcc_abi.cc:[[@LINE-1]]
  16   return s[three]; //BOOM
  17 }
  18
  19 __attribute__((naked, noinline)) void gcc_abi() {
  20 // CHECK: #2 0x{{.*}} in gcc_abi {{.*}}clang_gcc_abi.cc:[[@LINE+1]]
  21   asm volatile("str fp, [sp, #-8]!\n\t"
  22                "str lr, [sp, #4]\n\t"
  23                "add fp, sp, #4\n\t"
  24                "bl  boom\n\t"
  25                "sub sp, fp, #4\n\t"
  26                "ldr fp, [sp]\n\t"
  27                "add sp, sp, #4\n\t"
  28                "ldr pc, [sp], #4\n\t"
  29               );
  30 }
  31
  32 __attribute__((naked, noinline)) void clang_abi() {
  33 // CHECK: #3 0x{{.*}} in clang_abi {{.*}}clang_gcc_abi.cc:[[@LINE+1]]
  34   asm volatile("push {r11, lr}\n\t"
  35                "mov r11, sp\n\t"
  36                "bl  gcc_abi\n\t"
  37                "add r0, r0, #1\n\t"
  38                "pop {r11, pc}\n\t"
  39               );
  40 }
  41
  42 int main() {
  43   clang_abi();
  44 // CHECK: #4 0x{{.*}} in main {{.*}}clang_gcc_abi.cc:[[@LINE-1]]
  45 }