compiler-rt/test/asan/TestCases/malloc-size-too-big.cpp

   1 // RUN: %clangxx_asan -O0 %s -o %t
   2 // RUN: %env_asan_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s
   3 // RUN: %env_asan_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
   4
   5 // REQUIRES: stable-runtime
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 static const size_t kMaxAllowedMallocSizePlusOne =
  11 #if __LP64__ || defined(_WIN64)
  12     (1ULL << 40) + 1;
  13 #else
  14     (3UL << 30) + 1;
  15 #endif
  16
  17 int main() {
  18   void *p = malloc(kMaxAllowedMallocSizePlusOne);
  19   // CHECK: {{ERROR: AddressSanitizer: requested allocation size .* \(.* after adjustments for alignment, red zones etc\.\) exceeds maximum supported size}}
  20   // CHECK: {{#0 0x.* in .*malloc}}
  21   // CHECK: {{#[1-3] 0x.* in main .*malloc-size-too-big.cpp:}}[[@LINE-3]]
  22   // CHECK: SUMMARY: AddressSanitizer: allocation-size-too-big
  23
  24   printf("malloc returned: %zu\n", (size_t)p);
  25   // CHECK-NULL: malloc returned: 0
  26
  27   return 0;
  28 }