81 lines · cpp
1// Stress test recovery mode with many threads.2//3// RUN: %clangxx_asan -fsanitize-recover=address -pthread %s -o %t4//5// RUN: %env_asan_opts=halt_on_error=false:suppress_equal_pcs=false %run %t 1 10 >%t.log 2>&16// RUN: grep 'ERROR: AddressSanitizer: use-after-poison' %t.log | count 107// RUN: FileCheck %s <%t.log8//9// RUN: %env_asan_opts=halt_on_error=false:suppress_equal_pcs=false:exitcode=0 %run %t 10 20 >%t.log 2>&110// RUN: grep 'ERROR: AddressSanitizer: use-after-poison' %t.log | count 20011// RUN: FileCheck %s <%t.log12//13// RUN: %env_asan_opts=halt_on_error=false:exitcode=0 %run %t 10 20 >%t.log 2>&114// RUN: grep 'ERROR: AddressSanitizer: use-after-poison' %t.log | count 115// RUN: FileCheck %s <%t.log16 17#include <stdio.h>18#include <stdlib.h>19#include <pthread.h>20#include <time.h>21 22#include <sanitizer/asan_interface.h>23 24size_t nthreads = 10;25size_t niter = 10;26 27void random_delay(unsigned *seed) {28 *seed = 1664525 * *seed + 1013904223;29 struct timespec delay = { 0, static_cast<long>((*seed % 1000) * 1000) };30 nanosleep(&delay, 0);31}32 33void *run(void *arg) {34 unsigned seed = (unsigned)(size_t)arg;35 36 volatile char tmp[2];37 __asan_poison_memory_region(&tmp, sizeof(tmp));38 39 for (size_t i = 0; i < niter; ++i) {40 random_delay(&seed);41 // CHECK: ERROR: AddressSanitizer: use-after-poison42 volatile int idx = 0;43 tmp[idx] = 0;44 }45 46 return 0;47}48 49int main(int argc, char **argv) {50 if (argc != 3) {51 fprintf(stderr, "Syntax: %s nthreads niter\n", argv[0]);52 exit(1);53 }54 55 nthreads = (size_t)strtoul(argv[1], 0, 0);56 niter = (size_t)strtoul(argv[2], 0, 0);57 58 pthread_t *tids = new pthread_t[nthreads];59 60 for (size_t i = 0; i < nthreads; ++i) {61 if (0 != pthread_create(&tids[i], 0, run, (void *)i)) {62 fprintf(stderr, "Failed to create thread\n");63 exit(1);64 }65 }66 67 for (size_t i = 0; i < nthreads; ++i) {68 if (0 != pthread_join(tids[i], 0)) {69 fprintf(stderr, "Failed to join thread\n");70 exit(1);71 }72 }73 74 // CHECK: All threads terminated75 printf("All threads terminated\n");76 77 delete [] tids;78 79 return 0;80}81