1// RUN: %clangxx_asan %s -o %t
2// RUN: %env_asan_opts=quarantine_size_mb=2 %run %t 1
3// RUN: %env_asan_opts=quarantine_size_mb=2 %run %t 4
4
5#include <cassert>
6#include <sanitizer/allocator_interface.h>
7#include <stdio.h>
8#include <stdlib.h>
9
10void *g;
11
12int main(int argc, char **argv) {
13 int s = atoi(nptr: argv[1]) * 1024 * 1024;
14 int a = __sanitizer_get_heap_size();
15 g = malloc(size: s);
16 int b = __sanitizer_get_heap_size();
17 assert(b - a > s / 2);
18 free(ptr: g);
19 int c = __sanitizer_get_heap_size();
20 fprintf(stderr, format: "%d %d\n", a, c);
21 if (atoi(nptr: argv[1]) == 1)
22 assert(c - a > s / 2); // NODRAIN
23 else
24 assert(c - a < s / 2); // DRAIN
25}
26

source code of compiler-rt/test/asan/TestCases/Linux/small_quarantine_size_mb.cpp