LCOV - code coverage report
Current view: directory - js/src - jscrashformat.h (source / functions) Found Hit Coverage
Test: app.info Lines: 3 3 100.0 %
Date: 2012-06-02 Functions: 3 3 100.0 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
       2                 :  * vim: set ts=4 sw=4 et tw=99:
       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 SpiderMonkey JavaScript 1.9 code, released
      18                 :  * May 28, 2008.
      19                 :  *
      20                 :  * The Initial Developer of the Original Code is
      21                 :  *   Mozilla Foundation
      22                 :  * Portions created by the Initial Developer are Copyright (C) 2011
      23                 :  * the Initial Developer. All Rights Reserved.
      24                 :  *
      25                 :  * Contributor(s):
      26                 :  *
      27                 :  * Alternatively, the contents of this file may be used under the terms of
      28                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      29                 :  * or 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                 : #ifndef jscrashformat_h___
      42                 : #define jscrashformat_h___
      43                 : 
      44                 : #include <string.h>
      45                 : 
      46                 : namespace js {
      47                 : namespace crash {
      48                 : 
      49                 : const static int crash_cookie_len = 16;
      50                 : const static char crash_cookie[crash_cookie_len] = "*J*S*CRASHDATA*";
      51                 : 
      52                 : /* These values are used for CrashHeader::id. */
      53                 : enum {
      54                 :     JS_CRASH_STACK_GC = 0x400,
      55                 :     JS_CRASH_STACK_ERROR = 0x401,
      56                 :     JS_CRASH_RING = 0x800
      57                 : };
      58                 : 
      59                 : /*
      60                 :  * All the data here will be stored directly in the minidump, so we use
      61                 :  * platform-independent types. We also ensure that the size of every field is a
      62                 :  * multiple of 8 bytes, to guarantee that they won't be padded.
      63                 :  */
      64                 : 
      65                 : struct CrashHeader
      66                 : {
      67                 :     char cookie[crash_cookie_len];
      68                 : 
      69                 :     /* id of the crash data, chosen from the enum above. */
      70                 :     uint64_t id;
      71                 : 
      72           59610 :     CrashHeader(uint64_t id) : id(id) { memcpy(cookie, crash_cookie, crash_cookie_len); }
      73                 : };
      74                 : 
      75                 : struct CrashRegisters
      76                 : {
      77                 :     uint64_t ip, sp, bp;
      78                 : };
      79                 : 
      80                 : const static int crash_buffer_size = 32 * 1024;
      81                 : 
      82                 : struct CrashStack
      83                 : {
      84           39740 :     CrashStack(uint64_t id) : header(id) {}
      85                 : 
      86                 :     CrashHeader header;
      87                 :     uint64_t snaptime;    /* Unix time when the stack was snapshotted. */
      88                 :     CrashRegisters regs;  /* Register contents for the snapshot. */
      89                 :     uint64_t stack_base;  /* Base address of stack at the time of snapshot. */
      90                 :     uint64_t stack_len;   /* Extent of the stack. */
      91                 :     char stack[crash_buffer_size]; /* Contents of the stack. */
      92                 : };
      93                 : 
      94                 : struct CrashRing
      95                 : {
      96           19870 :     CrashRing(uint64_t id) : header(id), offset(0) { memset(buffer, 0, sizeof(buffer)); }
      97                 : 
      98                 :     CrashHeader header;
      99                 :     uint64_t offset; /* Next byte to be written in the buffer. */
     100                 :     char buffer[crash_buffer_size];
     101                 : };
     102                 : 
     103                 : /* These are the tag values for each entry in the CrashRing. */
     104                 : enum {
     105                 :     JS_CRASH_TAG_GC = 0x200
     106                 : };
     107                 : 
     108                 : } /* namespace crash */
     109                 : } /* namespace js */
     110                 : 
     111                 : #endif

Generated by: LCOV version 1.7