lib/asan/lit_tests/TestCases/large_func_test.cc

   1 // RUN: %clangxx_asan -O0 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   2 // RUN: %clangxx_asan -O1 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   3 // RUN: %clangxx_asan -O2 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   4 // RUN: %clangxx_asan -O3 %s -o %t && not %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   5
   6 #include <stdlib.h>
   7 __attribute__((noinline))
   8 static void LargeFunction(int *x, int zero) {
   9   x[0]++;
  10   x[1]++;
  11   x[2]++;
  12   x[3]++;
  13   x[4]++;
  14   x[5]++;
  15   x[6]++;
  16   x[7]++;
  17   x[8]++;
  18   x[9]++;
  19
  20   // CHECK: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
  21   // CHECK:   {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}
  22   // CHECK: {{READ of size 4 at 0x.* thread T0}}
  23   x[zero + 103]++;  // we should report this exact line
  24   // atos incorrectly extracts the symbol name for the static functions on
  25   // Darwin.
  26   // CHECK-Linux:  {{#0 0x.* in LargeFunction.*large_func_test.cc:}}[[@LINE-3]]
  27   // CHECK-Darwin: {{#0 0x.* in .*LargeFunction.*large_func_test.cc}}:[[@LINE-4]]
  28
  29   x[10]++;
  30   x[11]++;
  31   x[12]++;
  32   x[13]++;
  33   x[14]++;
  34   x[15]++;
  35   x[16]++;
  36   x[17]++;
  37   x[18]++;
  38   x[19]++;
  39 }
  40
  41 int main(int argc, char **argv) {
  42   int *x = new int[100];
  43   LargeFunction(x, argc - 1);
  44   // CHECK: {{    #1 0x.* in main .*large_func_test.cc:}}[[@LINE-1]]
  45   // CHECK: {{0x.* is located 12 bytes to the right of 400-byte region}}
  46   // CHECK: {{allocated by thread T0 here:}}
  47   // CHECK-Linux: {{    #0 0x.* in operator new.*}}
  48   // CHECK-Darwin: {{    #0 0x.* in .*_Zna.*}}
  49   // CHECK: {{    #1 0x.* in main .*large_func_test.cc:}}[[@LINE-7]]
  50   delete x;
  51 }