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 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
