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1 // Test the mmap_limit_mb flag.
2 //
3 // RUN: %clangxx_asan -O2 %s -o %t
4 // RUN: %run %t 20 16
5 // RUN: %run %t 30 1000000
6 // RUN: env ASAN_OPTIONS=mmap_limit_mb=300 %run %t 20 16
7 // RUN: env ASAN_OPTIONS=mmap_limit_mb=300 %run %t 20 1000000
8 // RUN: env ASAN_OPTIONS=mmap_limit_mb=300 not %run %t 500 16 2>&1 | FileCheck %s
9 // RUN: env ASAN_OPTIONS=mmap_limit_mb=300 not %run %t 500 1000000 2>&1 | FileCheck %s
10 // XFAIL: arm-linux-gnueabi
11 
12 #include <assert.h>
13 #include <stdlib.h>
14 #include <stdio.h>
15 
16 #include <algorithm>
17 #include <vector>
18 
main(int argc,char ** argv)19 int main(int argc, char **argv) {
20   assert(argc == 3);
21   long total_mb = atoi(argv[1]);
22   long allocation_size = atoi(argv[2]);
23   fprintf(stderr, "total_mb: %zd allocation_size: %zd\n", total_mb,
24           allocation_size);
25   std::vector<char *> v;
26   for (long total = total_mb << 20; total > 0; total -= allocation_size)
27     v.push_back(new char[allocation_size]);
28   for (std::vector<char *>::const_iterator it = v.begin(); it != v.end(); ++it)
29     delete[](*it);
30   fprintf(stderr, "PASS\n");
31   // CHECK: total_mmaped{{.*}}mmap_limit_mb
32   return 0;
33 }
34