compiler-rt/test/asan/TestCases/large_func_test.cpp

   1 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   2 // RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   3 // RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   4 // RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%os --check-prefix=CHECK
   5 // REQUIRES: stable-runtime
   6
   7 #include <stdlib.h>
   8 __attribute__((noinline))
   9 static void LargeFunction(int *x, int zero) {
  10   x[0]++;
  11   x[1]++;
  12   x[2]++;
  13   x[3]++;
  14   x[4]++;
  15   x[5]++;
  16   x[6]++;
  17   x[7]++;
  18   x[8]++;
  19   x[9]++;
  20
  21   // CHECK: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
  22   // CHECK:   {{0x.* at pc 0x.* bp 0x.* sp 0x.*}}
  23   // CHECK: {{READ of size 4 at 0x.* thread T0}}
  24   x[zero + 103]++;  // we should report this exact line
  25   // atos incorrectly extracts the symbol name for the static functions on
  26   // Darwin.
  27   // CHECK-Linux:  {{#0 0x.* in LargeFunction.*large_func_test.cpp:}}[[@LINE-3]]
  28   // CHECK-SunOS:  {{#0 0x.* in LargeFunction.*large_func_test.cpp:}}[[@LINE-4]]
  29   // CHECK-Windows:{{#0 0x.* in LargeFunction.*large_func_test.cpp:}}[[@LINE-5]]
  30   // CHECK-FreeBSD:{{#0 0x.* in LargeFunction.*large_func_test.cpp:}}[[@LINE-6]]
  31   // CHECK-Darwin: {{#0 0x.* in .*LargeFunction.*large_func_test.cpp}}:[[@LINE-7]]
  32
  33   x[10]++;
  34   x[11]++;
  35   x[12]++;
  36   x[13]++;
  37   x[14]++;
  38   x[15]++;
  39   x[16]++;
  40   x[17]++;
  41   x[18]++;
  42   x[19]++;
  43 }
  44
  45 int main(int argc, char **argv) {
  46   int *x = new int[100];
  47   LargeFunction(x, argc - 1);
  48   // CHECK: {{    #1 0x.* in main .*large_func_test.cpp:}}[[@LINE-1]]
  49   // CHECK: {{0x.* is located 12 bytes after 400-byte region}}
  50   // CHECK: {{allocated by thread T0 here:}}
  51   // CHECK-Linux:  {{    #0 0x.* in operator new}}
  52   // CHECK-SunOS:  {{    #0 0x.* in operator new}}
  53   // CHECK-Windows:{{    #0 0x.* in operator new}}
  54   // CHECK-FreeBSD:{{    #0 0x.* in operator new}}
  55   // CHECK-Darwin: {{    #0 0x.* in .*_Zna}}
  56   // CHECK-NEXT:   {{    #1 0x.* in main .*large_func_test.cpp:}}[[@LINE-10]]
  57   int y = x[argc];
  58   delete[] x;
  59   return y;
  60 }