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// RUN: %clang_msan -fsanitize-memory-track-origins=0 -O0 %s -o %t && MSAN_OPTIONS=soft_rss_limit_mb=18:verbosity=1:allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s -implicit-check-not="soft rss limit" -check-prefixes=CHECK,NOORIG
// RUN: %clang_msan -fsanitize-memory-track-origins=2 -O0 %s -o %t && MSAN_OPTIONS=soft_rss_limit_mb=36:verbosity=1:allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s -implicit-check-not="soft rss limit" -check-prefixes=CHECK,ORIGIN
#include <assert.h>
#include <sanitizer/allocator_interface.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
void *p;
int main(int argc, char **argv) {
int s = 20 * 1024 * 1024;
fprintf(stderr, "malloc\n");
p = malloc(s);
sleep(1);
fprintf(stderr, "memset\n");
memset(p, 1, s);
sleep(1);
fprintf(stderr, "free\n");
free(p);
sleep(1);
return 0;
}
// CHECK-LABEL: malloc
// Non origin mode allocate ~20M for shadow.
// Origin mode allocate ~20M for shadow and ~20M for origin.
// CHECK: soft rss limit exhausted
// CHECK-LABEL: memset
// Memset reserve modified pages, frees ~20M for shadow. So not change in RSS for non-origin mode.
// Origin mode also frees ~20M of origins, so 'unexhausted'.
// ORIGIN: soft rss limit unexhausted
// CHECK-LABEL: free
// Now non-origin release all everything.
// NOORIG: soft rss limit unexhausted
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