1// RUN: %clang -O0 %s -o %t && %env_tool_opts=allocator_may_return_null=1:hard_rss_limit_mb=50:quarantine_size_mb=1 %run %t
2
3#include <stdlib.h>
4#include <stdio.h>
5
6// https://github.com/google/sanitizers/issues/981
7// UNSUPPORTED: android-26
8
9// FIXME: Hangs.
10// UNSUPPORTED: tsan
11
12// Hwasan requires tagging of new allocations, so needs RSS for shadow.
13// UNSUPPORTED: hwasan
14
15// FIXME: Something wrong with MADV_FREE or MAP_NORESERVE there.
16// UNSUPPORTED: target={{.*solaris.*}}
17
18void *p;
19
20int main(int argc, char **argv) {
21 for (int i = 0; i < sizeof(void *) * 8; ++i) {
22 // Calloc avoids MSAN shadow poisoning.
23 p = calloc(nmemb: 1ull << i, size: 1);
24 fprintf(stderr, format: "%d %llu: %p\n", i, (1ull << i), p);
25 free(ptr: p);
26 }
27 return 0;
28}
29

source code of compiler-rt/test/sanitizer_common/TestCases/Posix/huge_malloc.c