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