1 // Check hard_rss_limit_mb. Not all sanitizers implement it yet. 2 // RUN: %clangxx -O2 %s -o %t 3 // 4 // Run with limit should fail: 5 // RUN: %env_tool_opts=hard_rss_limit_mb=100 not %run %t 2>&1 | FileCheck %s 6 // This run uses getrusage: 7 // RUN: %env_tool_opts=hard_rss_limit_mb=100:can_use_proc_maps_statm=0 not %run %t 2>&1 | FileCheck %s 8 // 9 // Run w/o limit or with a large enough limit should pass: 10 // RUN: %env_tool_opts=hard_rss_limit_mb=4000 %run %t 11 // RUN: %run %t 12 // 13 // Ubsan does not intercept pthread_create. 14 // XFAIL: ubsan 15 // UNSUPPORTED: freebsd, solaris, darwin 16 17 // THUMB starts background thead only for Asan. 18 // XFAIL: thumb && !asan 19 20 #include <string.h> 21 #include <stdio.h> 22 #include <unistd.h> 23 24 const int kNumAllocs = 200 * 1000; 25 const int kAllocSize = 1000; 26 volatile char *sink[kNumAllocs]; 27 28 int main(int argc, char **argv) { 29 for (int i = 0; i < kNumAllocs; i++) { 30 if ((i % 1000) == 0) { 31 // Don't write to stderr! Doing that triggers a kernel race condition 32 // between this thread and the rss-limit thread, and may lose part of the 33 // output. See https://lkml.org/lkml/2014/2/17/324. 34 printf("[%d]\n", i); 35 } 36 char *x = new char[kAllocSize]; 37 memset(x, 0, kAllocSize); 38 sink[i] = x; 39 } 40 sleep(1); // Make sure the background thread has time to kill the process. 41 // CHECK: hard rss limit exhausted 42 } 43