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 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 }
29