LCOV - app.info - mfbt/Assertions.cpp

LCOV - code coverage report
| Current view: | directory - mfbt - Assertions.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 8 | 0 | 0.0 %
| Date: | 2012-04-07 | Functions: | 2 | 0 | 0.0 %

           1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
           2                 :  * vim: set ts=8 sw=4 et tw=99 ft=cpp:
           3                 :  *
           4                 :  * ***** BEGIN LICENSE BLOCK *****
           5                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
           6                 :  *
           7                 :  * The contents of this file are subject to the Mozilla Public License Version
           8                 :  * 1.1 (the "License"); you may not use this file except in compliance with
           9                 :  * the License. You may obtain a copy of the License at:
          10                 :  * http://www.mozilla.org/MPL/
          11                 :  *
          12                 :  * Software distributed under the License is distributed on an "AS IS" basis,
          13                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
          14                 :  * for the specific language governing rights and limitations under the
          15                 :  * License.
          16                 :  *
          17                 :  * The Original Code is Mozilla Code.
          18                 :  *
          19                 :  * The Initial Developer of the Original Code is
          20                 :  *   The Mozilla Foundation
          21                 :  * Portions created by the Initial Developer are Copyright (C) 2012
          22                 :  * the Initial Developer. All Rights Reserved.
          23                 :  *
          24                 :  * Contributor(s):
          25                 :  *   Mike Hommey <mh@glandium.org>
          26                 :  *
          27                 :  * Alternatively, the contents of this file may be used under the terms of
          28                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          29                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          30                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          31                 :  * of those above. If you wish to allow use of your version of this file only
          32                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          33                 :  * use your version of this file under the terms of the MPL, indicate your
          34                 :  * decision by deleting the provisions above and replace them with the notice
          35                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          36                 :  * the provisions above, a recipient may use your version of this file under
          37                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          38                 :  *
          39                 :  * ***** END LICENSE BLOCK ***** */
          40                 :
          41                 : #include "mozilla/Attributes.h"
          42                 : #include "mozilla/Types.h"
          43                 :
          44                 : #include <cstdio>
          45                 : #include <cstdlib>
          46                 : #ifndef WIN32
          47                 : #include <signal.h>
          48                 : #endif
          49                 :
          50                 : /* Implementations of runtime and static assertion macros for C and C++. */
          51                 :
          52                 : extern "C" {
          53                 :
          54                 : MOZ_EXPORT_API(void)
          55               0 : MOZ_Crash()
          56                 : {
          57                 :   /*
          58                 :    * We write 123 here so that the machine code for this function is
          59                 :    * unique. Otherwise the linker, trying to be smart, might use the
          60                 :    * same code for MOZ_Crash and for some other function. That
          61                 :    * messes up the signature in minidumps.
          62                 :    */
          63                 :
          64                 : #if defined(WIN32)
          65                 :   /*
          66                 :    * We used to call DebugBreak() on Windows, but amazingly, it causes
          67                 :    * the MSVS 2010 debugger not to be able to recover a call stack.
          68                 :    */
          69                 :   *((volatile int *) NULL) = 123;
          70                 :   exit(3);
          71                 : #elif defined(__APPLE__)
          72                 :   /*
          73                 :    * On Mac OS X, Breakpad ignores signals. Only real Mach exceptions are
          74                 :    * trapped.
          75                 :    */
          76                 :   *((volatile int *) NULL) = 123;  /* To continue from here in GDB: "return" then "continue". */
          77                 :   raise(SIGABRT);  /* In case above statement gets nixed by the optimizer. */
          78                 : #else
          79               0 :   raise(SIGABRT);  /* To continue from here in GDB: "signal 0". */
          80                 : #endif
          81               0 : }
          82                 :
          83                 : MOZ_EXPORT_API(void)
          84               0 : MOZ_Assert(const char* s, const char* file, int ln)
          85                 : {
          86               0 :   fprintf(stderr, "Assertion failure: %s, at %s:%d\n", s, file, ln);
          87               0 :   fflush(stderr);
          88               0 :   MOZ_Crash();
          89               0 : }
          90                 :
          91                 : }

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