59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Assertions.h"
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#include <unistd.h>
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#include <signal.h>
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#include <string.h>
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#include <sys/wait.h>
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void handler(int signum) { exit(gMozCrashReason == nullptr ? 1 : 0); }
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int main(int argc, char** argv) {
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// libxul starts with gMozCrashReason set to nullptr.
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if (gMozCrashReason) {
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fprintf(stderr, "gMozCrashReason unexpectedly starts set to %s.\n",
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gMozCrashReason);
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return 1;
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}
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// The strategy here is simple: fork, trigger an abort from the child and
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// observe behavior.
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pid_t child = fork();
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if (child == 0) {
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struct sigaction sa;
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memset(&sa, 0, sizeof(sa));
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sa.sa_handler = handler;
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sigemptyset(&sa.sa_mask);
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for (int i = 1; i < 10; ++i)
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if (sigaction(SIGSEGV, &sa, nullptr) == -1) {
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perror(argv[0]);
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return 1;
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}
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// Trigger an actual verbose crash. This calls a function within libxul to
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// make sure it produces verbose crash.
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mozilla::detail::InvalidArrayIndex_CRASH(2, 2);
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} else {
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// Recover exit status from child, check it's an actual crash and that
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// gMozCrashReason is set.
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int waitres;
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if (wait(&waitres) >= 0) {
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if (WIFEXITED(waitres) && WEXITSTATUS(waitres) == 0) return 0;
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fprintf(stderr,
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"Crash didn't happen in the expected way.\n"
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"normal exit: %d.\n"
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"signaled exit: %d.\n"
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"exit status: %d.\n"
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"signal used: %d.\n",
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WIFEXITED(waitres), WIFSIGNALED(waitres),
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(WIFEXITED(waitres) ? WEXITSTATUS(waitres) : -1),
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(WIFSIGNALED(waitres) ? WTERMSIG(waitres) : -1));
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return 1;
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}
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}
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}
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