42 lines
No EOL
1.3 KiB
C
42 lines
No EOL
1.3 KiB
C
// 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
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// 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
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#include <assert.h>
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#include <sanitizer/allocator_interface.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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void *p;
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int main(int argc, char **argv) {
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int s = 20 * 1024 * 1024;
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fprintf(stderr, "malloc\n");
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p = malloc(s);
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sleep(1);
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fprintf(stderr, "memset\n");
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memset(p, 1, s);
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sleep(1);
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fprintf(stderr, "free\n");
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free(p);
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sleep(1);
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return 0;
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}
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// CHECK-LABEL: malloc
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// Non origin mode allocate ~20M for shadow.
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// Origin mode allocate ~20M for shadow and ~20M for origin.
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// CHECK: soft rss limit exhausted
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// CHECK-LABEL: memset
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// Memset reserve modified pages, frees ~20M for shadow. So not change in RSS for non-origin mode.
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// Origin mode also frees ~20M of origins, so 'unexhausted'.
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// ORIGIN: soft rss limit unexhausted
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// CHECK-LABEL: free
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// Now non-origin release all everything.
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// NOORIG: soft rss limit unexhausted
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