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