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

   1 // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   2 // RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
   3 // RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
   4 // RUN: %clangxx_asan -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s
   5
   6 // When built as C on Linux, strdup is transformed to __strdup.
   7 // RUN: %clangxx_asan -O3 -xc %s -o %t && not %run %t 2>&1 | FileCheck %s
   8
   9 // Unwind problem on arm: "main" is missing from the allocation stack trace.
  10 // REQUIRES: (arm-target-arch || armhf-target-arch), fast-unwinder-works
  11
  12 // FIXME: We fail to intercept strdup with the dynamic WinASan RTL, so it's not
  13 // in the stack trace.
  14 // XFAIL: win32-dynamic-asan
  15
  16 #include <string.h>
  17
  18 char kString[] = "foo";
  19
  20 int main(int argc, char **argv) {
  21   char *copy = strdup(kString);
  22   int x = copy[4 + argc];  // BOOM
  23   // CHECK: AddressSanitizer: heap-buffer-overflow
  24   // CHECK: #0 {{.*}}main {{.*}}strdup_oob_test.cpp:[[@LINE-2]]
  25   // CHECK-LABEL: allocated by thread T{{.*}} here:
  26   // CHECK: #{{[01]}} {{.*}}strdup
  27   // CHECK: #{{.*}}main {{.*}}strdup_oob_test.cpp:[[@LINE-6]]
  28   // CHECK-LABEL: SUMMARY
  29   // CHECK: strdup_oob_test.cpp:[[@LINE-7]]
  30   return x;
  31 }