1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 | /* ***** BEGIN LICENSE BLOCK ***** |
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3 | * Version: NPL 1.1/GPL 2.0/LGPL 2.1 |
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4 | * |
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5 | * The contents of this file are subject to the Netscape Public License |
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6 | * Version 1.1 (the "License"); you may not use this file except in |
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7 | * compliance with the License. You may obtain a copy of the License at |
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8 | * http://www.mozilla.org/NPL/ |
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9 | * |
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10 | * Software distributed under the License is distributed on an "AS IS" basis, |
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11 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
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12 | * for the specific language governing rights and limitations under the |
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13 | * License. |
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14 | * |
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15 | * The Original Code is Mozilla Communicator client code. |
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16 | * |
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17 | * The Initial Developer of the Original Code is |
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18 | * Netscape Communications Corporation. |
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19 | * Portions created by the Initial Developer are Copyright (C) 1998 |
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20 | * the Initial Developer. All Rights Reserved. |
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21 | * |
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22 | * Contributor(s): |
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23 | * Jerry.Kirk@Nexwarecorp.com |
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24 | * Chris Seawood <cls@seawood.org> |
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25 | * |
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26 | * Alternatively, the contents of this file may be used under the terms of |
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27 | * either the GNU General Public License Version 2 or later (the "GPL"), or |
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28 | * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
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29 | * in which case the provisions of the GPL or the LGPL are applicable instead |
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30 | * of those above. If you wish to allow use of your version of this file only |
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31 | * under the terms of either the GPL or the LGPL, and not to allow others to |
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32 | * use your version of this file under the terms of the NPL, indicate your |
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33 | * decision by deleting the provisions above and replace them with the notice |
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34 | * and other provisions required by the GPL or the LGPL. If you do not delete |
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35 | * the provisions above, a recipient may use your version of this file under |
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36 | * the terms of any one of the NPL, the GPL or the LGPL. |
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37 | * |
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38 | * ***** END LICENSE BLOCK ***** */ |
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39 | |
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40 | /* |
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41 | * This module is supposed to abstract signal handling away from the other |
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42 | * platforms that do not support it. |
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43 | */ |
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44 | |
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45 | #include <signal.h> |
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46 | #include <stdio.h> |
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47 | #include "prthread.h" |
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48 | #include "plstr.h" |
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49 | #include "prenv.h" |
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50 | |
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51 | #if defined(LINUX) |
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52 | #include <sys/time.h> |
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53 | #include <sys/resource.h> |
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54 | #include <unistd.h> |
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55 | #include <stdlib.h> // atoi |
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56 | #endif |
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57 | |
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58 | #if defined(SOLARIS) |
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59 | #include <sys/resource.h> |
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60 | #endif |
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61 | |
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62 | #ifdef XP_BEOS |
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63 | #include <be/app/Application.h> |
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64 | #include <string.h> |
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65 | #include "nsCOMPtr.h" |
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66 | #include "nsIServiceManager.h" |
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67 | #include "nsIAppShellService.h" |
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68 | #include "nsAppShellCIDs.h" |
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69 | static NS_DEFINE_CID(kAppShellServiceCID, NS_APPSHELL_SERVICE_CID); |
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70 | #elif defined(LINUX) |
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71 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) |
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72 | #include <string.h> |
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73 | #else |
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74 | extern "C" char * strsignal(int); |
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75 | #endif |
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76 | #endif |
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77 | |
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78 | #ifdef MOZ_WIDGET_PHOTON |
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79 | #include <photon/PhProto.h> |
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80 | #include <sys/mman.h> /* for munlockall() */ |
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81 | #endif |
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82 | |
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83 | static char _progname[1024] = "huh?"; |
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84 | |
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85 | #if defined(LINUX) && defined(DEBUG) && (defined(__i386) || defined(PPC)) |
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86 | #define CRAWL_STACK_ON_SIGSEGV |
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87 | #endif |
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88 | |
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89 | #ifdef MOZ_WIDGET_PHOTON |
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90 | void abnormal_exit_handler(int signum) |
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91 | { |
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92 | /* Free any shared memory that has been allocated */ |
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93 | PgShmemCleanup(); |
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94 | |
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95 | #if defined(DEBUG) |
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96 | if ( (signum == SIGSEGV) |
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97 | || (signum == SIGILL) |
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98 | || (signum == SIGABRT) |
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99 | ) |
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100 | { |
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101 | PR_GetCurrentThread(); |
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102 | printf("prog = %s\npid = %d\nsignal = %s\n", |
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103 | _progname, getpid(), strsignal(signum)); |
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104 | |
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105 | printf("Sleeping for 5 minutes.\n"); |
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106 | printf("Type 'gdb %s %d' to attatch your debugger to this thread.\n", |
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107 | _progname, getpid()); |
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108 | |
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109 | sleep(300); |
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110 | |
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111 | printf("Done sleeping...\n"); |
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112 | } |
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113 | #endif |
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114 | |
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115 | _exit(1); |
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116 | } |
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117 | #elif defined(CRAWL_STACK_ON_SIGSEGV) |
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118 | |
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119 | #include <unistd.h> |
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120 | #include "nsISupportsUtils.h" |
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121 | #include "nsStackFrameUnix.h" |
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122 | |
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123 | void |
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124 | ah_crap_handler(int signum) |
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125 | { |
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126 | PR_GetCurrentThread(); |
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127 | |
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128 | // I don't think strsignal is portable. If it is, this can be changed. |
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129 | #ifdef LINUX |
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130 | printf("\nProgram %s (pid = %d) received %s signal.\n", |
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131 | _progname, |
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132 | getpid(), |
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133 | strsignal(signum)); |
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134 | #else |
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135 | printf("\nProgram %s (pid = %d) received signal %d.\n", |
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136 | _progname, |
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137 | getpid(), |
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138 | signum); |
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139 | #endif |
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140 | |
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141 | printf("Stack:\n"); |
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142 | DumpStackToFile(stdout); |
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143 | |
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144 | printf("Sleeping for 5 minutes.\n"); |
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145 | printf("Type 'gdb %s %d' to attatch your debugger to this thread.\n", |
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146 | _progname, |
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147 | getpid()); |
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148 | |
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149 | sleep(300); |
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150 | |
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151 | printf("Done sleeping...\n"); |
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152 | } |
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153 | #endif // CRAWL_STACK_ON_SIGSEGV |
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154 | |
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155 | #ifdef XP_BEOS |
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156 | void beos_signal_handler(int signum) { |
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157 | #ifdef DEBUG |
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158 | fprintf(stderr, "beos_signal_handler: %d\n", signum); |
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159 | #endif |
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160 | nsresult rv; |
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161 | nsCOMPtr<nsIAppShellService> appShellService(do_GetService(kAppShellServiceCID,&rv)); |
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162 | if (NS_FAILED(rv)) { |
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163 | // Failed to get the appshell service so shutdown the hard way |
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164 | #ifdef DEBUG |
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165 | fprintf(stderr, "beos_signal_handler: appShell->do_GetService() failed\n"); |
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166 | #endif |
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167 | exit(13); |
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168 | } |
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169 | |
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170 | // Exit the appshell so that the app can shutdown normally |
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171 | appShellService->Quit(nsIAppShellService::eAttemptQuit); |
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172 | } |
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173 | #endif |
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174 | |
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175 | void InstallUnixSignalHandlers(const char *ProgramName) |
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176 | { |
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177 | |
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178 | PL_strncpy(_progname,ProgramName, (sizeof(_progname)-1) ); |
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179 | |
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180 | #if defined(MOZ_WIDGET_PHOTON) |
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181 | /* Neutrino need this to free shared memory in case of a crash */ |
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182 | signal(SIGTERM, abnormal_exit_handler); |
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183 | signal(SIGQUIT, abnormal_exit_handler); |
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184 | signal(SIGINT, abnormal_exit_handler); |
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185 | signal(SIGHUP, abnormal_exit_handler); |
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186 | signal(SIGSEGV, abnormal_exit_handler); |
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187 | signal(SIGILL, abnormal_exit_handler); |
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188 | signal(SIGABRT, abnormal_exit_handler); |
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189 | |
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190 | /* Tell the OS it can page any part of this program to virtual memory */ |
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191 | munlockall(); |
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192 | #elif defined(CRAWL_STACK_ON_SIGSEGV) |
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193 | signal(SIGSEGV, ah_crap_handler); |
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194 | signal(SIGILL, ah_crap_handler); |
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195 | signal(SIGABRT, ah_crap_handler); |
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196 | #endif // CRAWL_STACK_ON_SIGSEGV |
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197 | |
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198 | #if defined(DEBUG) && defined(LINUX) |
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199 | char *text = PR_GetEnv("MOZ_MEM_LIMIT"); |
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200 | if (text) |
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201 | { |
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202 | long m = atoi(text); |
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203 | m *= (1024*1024); |
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204 | struct rlimit r; |
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205 | r.rlim_cur = m; |
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206 | r.rlim_max = m; |
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207 | setrlimit(RLIMIT_AS, &r); |
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208 | } |
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209 | #endif |
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210 | |
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211 | #if defined(SOLARIS) |
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212 | |
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213 | #define NOFILES 512 |
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214 | |
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215 | // Boost Solaris file descriptors |
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216 | { |
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217 | struct rlimit rl; |
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218 | |
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219 | if (getrlimit(RLIMIT_NOFILE, &rl) == 0) |
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220 | |
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221 | if (rl.rlim_cur < NOFILES) { |
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222 | rl.rlim_cur = NOFILES; |
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223 | |
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224 | if (setrlimit(RLIMIT_NOFILE, &rl) < 0) { |
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225 | perror("setrlimit(RLIMIT_NOFILE)"); |
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226 | fprintf(stderr, "Cannot exceed hard limit for open files"); |
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227 | } |
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228 | #if defined(DEBUG) |
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229 | if (getrlimit(RLIMIT_NOFILE, &rl) == 0) |
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230 | printf("File descriptors set to %d\n", rl.rlim_cur); |
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231 | #endif //DEBUG |
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232 | } |
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233 | } |
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234 | #endif //SOLARIS |
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235 | |
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236 | #ifdef XP_BEOS |
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237 | signal(SIGTERM, beos_signal_handler); |
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238 | #endif |
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239 | } |
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