1 // RUN: %clang_esan_wset -O0 %s -o %t 2>&1
2 // RUN: %run %t 2>&1 | FileCheck %s
4 // FIXME: Re-enable once PR33590 is fixed.
6 // Stucks at init and no clone feature equivalent.
7 // UNSUPPORTED: freebsd
9 #include <sanitizer/esan_interface.h>
15 const int size = 0x1 << 25; // 523288 cache lines
17 int main(int argc, char **argv) {
18 char *buf = (char *)mmap(0, size, PROT_READ | PROT_WRITE,
19 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
20 // To avoid flakiness stemming from whether the sideline thread
21 // is scheduled enough on a loaded test machine, we coordinate
23 if (__esan_get_sample_count) {
24 while (__esan_get_sample_count() < 4) {
25 for (int i = 0; i < size; ++i)
31 // We only check for a few samples here to reduce the chance of flakiness.
32 // CHECK: =={{[0-9]+}}== Total number of samples: {{[0-9]+}}
33 // CHECK-NEXT: =={{[0-9]+}}== Samples array #0 at period 20 ms
34 // CHECK-NEXT: =={{[0-9]+}}==# 0: {{[ 0-9]+}} {{KB|MB|Bytes}} ({{[ 0-9]+}} cache lines)
35 // CHECK-NEXT: =={{[0-9]+}}==# 1: {{[ 0-9]+}} {{KB|MB|Bytes}} ({{[ 0-9]+}} cache lines)
36 // CHECK-NEXT: =={{[0-9]+}}==# 2: {{[ 0-9]+}} {{KB|MB|Bytes}} ({{[ 0-9]+}} cache lines)
37 // CHECK-NEXT: =={{[0-9]+}}==# 3: {{[ 0-9]+}} {{KB|MB|Bytes}} ({{[ 0-9]+}} cache lines)
38 // CHECK: =={{[0-9]+}}== Samples array #1 at period 80 ms
39 // CHECK-NEXT: =={{[0-9]+}}==# 0: {{[ 0-9]+}} {{KB|MB|Bytes}} ({{[ 0-9]+}} cache lines)
40 // CHECK: =={{[0-9]+}}== Samples array #2 at period 320 ms
41 // CHECK: =={{[0-9]+}}== Samples array #3 at period 1280 ms
42 // CHECK: =={{[0-9]+}}== Samples array #4 at period 5120 ms
43 // CHECK: =={{[0-9]+}}== Samples array #5 at period 20 sec
44 // CHECK: =={{[0-9]+}}== Samples array #6 at period 81 sec
45 // CHECK: =={{[0-9]+}}== Samples array #7 at period 327 sec
46 // CHECK: {{.*}} EfficiencySanitizer: the total working set size: 32 MB (5242{{[0-9][0-9]}} cache lines)