21 lines
630 B
C++
21 lines
630 B
C++
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// RUN: %clang_esan_wset -O0 %s -o %t 2>&1
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// RUN: %run %t 2>&1 | FileCheck %s
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <assert.h>
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#include <string.h>
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int main(int argc, char **argv) {
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const int size = 128*1024*1024;
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char *p = (char *)mmap(0, size, PROT_READ | PROT_WRITE,
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MAP_ANON | MAP_PRIVATE, -1, 0);
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// Test the slowpath at different cache line boundaries.
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for (int i = 0; i < 630; i++)
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memset((char *)p + 63*i, i, 63*i);
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munmap(p, size);
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return 0;
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// CHECK: {{.*}} EfficiencySanitizer: the total working set size: 77 KB (12{{[0-9]+}} cache lines)
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}
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