/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* * The contents of this file are subject to the Netscape Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): * * This Original Code has been modified by IBM Corporation. Modifications made by IBM * described herein are Copyright (c) International Business Machines Corporation, 2000. * Modifications to Mozilla code or documentation identified per MPL Section 3.3 * * Date Modified by Description of modification * 04/10/2000 IBM Corp. Added DebugBreak() definitions for OS/2 * 06/19/2000 IBM Corp. Fix DebugBreak() messagebox defaults for OS/2 * 06/19/2000 Henry Sobotka Fix DebugBreak() for OS/2 on retail build. */ #include "nsDebug.h" #include "prprf.h" #include "prlog.h" #include "prinit.h" #include "plstr.h" #include "nsError.h" #include "prerror.h" #include "prerr.h" #if defined(XP_BEOS) /* For DEBUGGER macros */ #include #endif #if defined(XP_UNIX) || defined(_WIN32) || defined(XP_OS2) || defined(XP_BEOS) /* for abort() and getenv() */ #include #endif #if defined(XP_UNIX) && !defined(UNIX_CRASH_ON_ASSERT) #include /* for nsTraceRefcnt::WalkTheStack() */ #include "nsISupportsUtils.h" #include "nsTraceRefcnt.h" #if defined(linux) && defined(__i386) # define DebugBreak() { asm("int $3"); } #else # define DebugBreak() #endif #endif #if defined(XP_OS2) /* Added definitions for DebugBreak() for 2 different OS/2 compilers. Doing * the int3 on purpose for Visual Age so that a developer can step over the * instruction if so desired. Not always possible if trapping due to exception * handling IBM-AKR */ #define INCL_WINDIALOGS // need for WinMessageBox #include #if defined(DEBUG) #if defined(XP_OS2_VACPP) #include #define DebugBreak() { _interrupt(3); } #elif defined(XP_OS2_EMX) /* Force a trap */ #define DebugBreak() { int *pTrap=NULL; *pTrap = 1; } #else #define DebugBreak() #endif #else #define DebugBreak() #endif /* DEBUG */ #endif /* XP_OS2 */ #if defined(_WIN32) #include #include #elif defined(XP_MAC) #define TEMP_MAC_HACK //------------------------ #ifdef TEMP_MAC_HACK #include #include #include // TEMPORARY UNTIL WE HAVE MACINTOSH ENVIRONMENT VARIABLES THAT CAN TURN ON // LOGGING ON MACINTOSH // At this moment, NSPR's logging is a no-op on Macintosh. #include #include #undef PR_LOG #undef PR_LogFlush #define PR_LOG(module,level,args) dprintf args #define PR_LogFlush() static void dprintf(const char *format, ...) { va_list ap; Str255 buffer; va_start(ap, format); buffer[0] = std::vsnprintf((char *)buffer + 1, sizeof(buffer) - 1, format, ap); va_end(ap); if (PL_strcasestr((char *)&buffer[1], "warning")) printf("еее%s\n", (char*)buffer + 1); else DebugStr(buffer); } #endif // TEMP_MAC_HACK //------------------------ #elif defined(XP_UNIX) #include #endif /** * Define output so users will always see it */ #if defined(XP_UNIX) || defined(_WIN32) #define DBG_LOG(log,err,pargs) \ InitLog(); \ PR_LOG(log,err,pargs); \ PR_LogFlush(); \ printf pargs; putchar('\n'); #else #define DBG_LOG(log,err,pargs) \ InitLog(); \ PR_LOG(log,err,pargs); \ PR_LogFlush(); #endif /* * Determine if debugger is present in windows. */ #if defined (_WIN32) typedef WINBASEAPI BOOL (WINAPI* LPFNISDEBUGGERPRESENT)(); PRBool InDebugger() { PRBool fReturn = PR_FALSE; LPFNISDEBUGGERPRESENT lpfnIsDebuggerPresent = NULL; HINSTANCE hKernel = LoadLibrary("Kernel32.dll"); if(hKernel) { lpfnIsDebuggerPresent = (LPFNISDEBUGGERPRESENT)GetProcAddress(hKernel, "IsDebuggerPresent"); if(lpfnIsDebuggerPresent) { fReturn = (*lpfnIsDebuggerPresent)(); } FreeLibrary(hKernel); } return fReturn; } #endif /* WIN32*/ /** * Implementation of the nsDebug methods. Note that this code is * always compiled in, in case some other module that uses it is * compiled with debugging even if this library is not. */ static PRLogModuleInfo* gDebugLog; static void InitLog(void) { if (0 == gDebugLog) { gDebugLog = PR_NewLogModule("nsDebug"); gDebugLog->level = PR_LOG_DEBUG; } } NS_COM void nsDebug::Assertion(const char* aStr, const char* aExpr, const char* aFile, PRIntn aLine) { InitLog(); char buf[1000]; PR_snprintf(buf, sizeof(buf), "###!!! ASSERTION: %s: '%s', file %s, line %d", aStr, aExpr, aFile, aLine); // Write out the assertion message to the debug log PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf)); PR_LogFlush(); // And write it out to the stdout printf("%s\n", buf); fflush(stdout); #if defined(_WIN32) char* assertBehavior = getenv("XPCOM_DEBUG_BREAK"); if (assertBehavior && PL_strcmp(assertBehavior, "warn") == 0) return; if(!InDebugger()) { DWORD code = IDRETRY; /* Create the debug dialog out of process to avoid the crashes caused by * Windows events leaking into our event loop from an in process dialog. * We do this by launching windbgdlg.exe (built in xpcom/windbgdlg). * See http://bugzilla.mozilla.org/show_bug.cgi?id=54792 */ PROCESS_INFORMATION pi; STARTUPINFO si; char executable[MAX_PATH]; char* pName; memset(&pi, 0, sizeof(pi)); memset(&si, 0, sizeof(si)); si.cb = sizeof(si); si.wShowWindow = SW_SHOW; if(GetModuleFileName(NULL, executable, MAX_PATH) && NULL != (pName = strrchr(executable, '\\')) && NULL != strcpy(pName+1, "windbgdlg.exe") && #ifdef DEBUG_jband (printf("Launching %s\n", executable), PR_TRUE) && #endif CreateProcess(executable, buf, NULL, NULL, PR_FALSE, DETACHED_PROCESS | NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi) && WAIT_OBJECT_0 == WaitForSingleObject(pi.hProcess, INFINITE) && GetExitCodeProcess(pi.hProcess, &code)) { CloseHandle(pi.hProcess); } switch(code) { case IDABORT: //This should exit us raise(SIGABRT); //If we are ignored exit this way.. _exit(3); break; case IDIGNORE: return; // Fall Through } } #endif #if defined(XP_OS2) char msg[1200]; PR_snprintf(msg, sizeof(msg), "%s\n\nClick Cancel to Debug Application.\n" "Click Enter to continue running the Application.", buf); ULONG code = WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, msg, "nsDebug::Assertion", 0, MB_ERROR | MB_ENTERCANCEL); /* It is possible that we are executing on a thread that doesn't have a * message queue. In that case, the message won't appear, and code will * be 0xFFFF. We'll give the user a chance to debug it by calling * Break() * Actually, that's a really bad idea since this happens a lot with threadsafe * assertions and since it means that you can't actually run the debug build * outside a debugger without it crashing constantly. */ if(( code == MBID_ENTER ) || (code == MBID_ERROR)) { return; // If Retry, Fall Through } #endif Break(aFile, aLine); } NS_COM void nsDebug::Break(const char* aFile, PRIntn aLine) { #ifndef TEMP_MAC_HACK DBG_LOG(gDebugLog, PR_LOG_ERROR, ("###!!! Break: at file %s, line %d", aFile, aLine)); #if defined(_WIN32) #ifdef _M_IX86 ::DebugBreak(); #else /* _M_ALPHA */ fprintf(stderr, "Break: at file %s\n",aFile, aLine); fflush(stderr); #endif #elif defined(XP_UNIX) && !defined(UNIX_CRASH_ON_ASSERT) fprintf(stderr, "\07"); char *assertBehavior = getenv("XPCOM_DEBUG_BREAK"); if (!assertBehavior) { // the default; nothing else to do ; } else if ( strcmp(assertBehavior, "suspend")== 0 ) { // the suspend case is first because we wanna send the signal before // other threads have had a chance to get too far from the state that // caused this assertion (in case they happen to have been involved). // fprintf(stderr, "Suspending process; attach with the debugger.\n"); kill(0, SIGSTOP); } else if ( strcmp(assertBehavior, "warn")==0 ) { // same as default; nothing else to do (see "suspend" case comment for // why this compare isn't done as part of the default case) // ; } else if ( strcmp(assertBehavior,"stack")==0 ) { // walk the stack // nsTraceRefcnt::WalkTheStack(stderr); } else if ( strcmp(assertBehavior,"abort")==0 ) { // same as UNIX_CRASH_ON_ASSERT // Abort(aFile, aLine); } else if ( strcmp(assertBehavior,"trap")==0 ) { DebugBreak(); } else { fprintf(stderr, "unrecognized value of XPCOM_DEBUG_BREAK env var!\n"); } fflush(stderr); // this shouldn't really be necessary, i don't think, // but maybe there's some lame stdio that buffers stderr #elif defined(XP_BEOS) { #ifdef UNIX_CRASH_ON_ASSERT char buf[2000]; sprintf(buf, "Break: at file %s, line %d", aFile, aLine); DEBUGGER(buf); #endif } #else Abort(aFile, aLine); #endif #endif // TEMP_MAC_HACK } NS_COM void nsDebug::Warning(const char* aMessage, const char* aFile, PRIntn aLine) { InitLog(); char buf[1000]; PR_snprintf(buf, sizeof(buf), "WARNING: %s, file %s, line %d", aMessage, aFile, aLine); // Write out the warning message to the debug log PR_LOG(gDebugLog, PR_LOG_ERROR, ("%s", buf)); // And write it out to the stdout printf("%s\n", buf); } //**************** All Dead Code Below // Don't use these! NS_COM void nsDebug::AbortIfFalse(const char* aStr, const char* aExpr, const char* aFile, PRIntn aLine) { Assertion(aStr, aExpr, aFile, aLine); } NS_COM PRBool nsDebug::WarnIfFalse(const char* aStr, const char* aExpr, const char* aFile, PRIntn aLine) { Assertion(aStr, aExpr, aFile, aLine); return PR_TRUE; } NS_COM void nsDebug::Abort(const char* aFile, PRIntn aLine) { DBG_LOG(gDebugLog, PR_LOG_ERROR, ("###!!! Abort: at file %s, line %d", aFile, aLine)); #if defined(_WIN32) #ifdef _M_IX86 long* __p = (long*) 0x7; *__p = 0x7; #else /* _M_ALPHA */ fprintf(stderr, "\07 Abort\n"); fflush(stderr); PR_Abort(); #endif #elif defined(XP_MAC) ExitToShell(); #elif defined(XP_UNIX) PR_Abort(); #elif defined(XP_OS2) DebugBreak(); return; #elif defined(XP_BEOS) { #ifndef DEBUG_cls char buf[2000]; sprintf(buf, "Abort: at file %s, line %d", aFile, aLine); DEBUGGER(buf); #endif } #endif } NS_COM void nsDebug::PreCondition(const char* aStr, const char* aExpr, const char* aFile, PRIntn aLine) { Assertion(aStr, aExpr, aFile, aLine); } NS_COM void nsDebug::PostCondition(const char* aStr, const char* aExpr, const char* aFile, PRIntn aLine) { Assertion(aStr, aExpr, aFile, aLine); } NS_COM void nsDebug::NotYetImplemented(const char* aMessage, const char* aFile, PRIntn aLine) { Assertion(aMessage, "NotYetImplemented", aFile, aLine); } NS_COM void nsDebug::NotReached(const char* aMessage, const char* aFile, PRIntn aLine) { Assertion(aMessage, "Not Reached", aFile, aLine); } NS_COM void nsDebug::Error(const char* aMessage, const char* aFile, PRIntn aLine) { Assertion(aMessage, "Error", aFile, aLine); } //////////////////////////////////////////////////////////////////////////////// NS_COM nsresult NS_ErrorAccordingToNSPR() { PRErrorCode err = PR_GetError(); switch (err) { case PR_OUT_OF_MEMORY_ERROR: return NS_ERROR_OUT_OF_MEMORY; case PR_WOULD_BLOCK_ERROR: return NS_BASE_STREAM_WOULD_BLOCK; case PR_FILE_NOT_FOUND_ERROR: return NS_ERROR_FILE_NOT_FOUND; case PR_READ_ONLY_FILESYSTEM_ERROR: return NS_ERROR_FILE_READ_ONLY; case PR_NOT_DIRECTORY_ERROR: return NS_ERROR_FILE_NOT_DIRECTORY; case PR_IS_DIRECTORY_ERROR: return NS_ERROR_FILE_IS_DIRECTORY; case PR_LOOP_ERROR: return NS_ERROR_FILE_UNRESOLVABLE_SYMLINK; case PR_FILE_EXISTS_ERROR: return NS_ERROR_FILE_ALREADY_EXISTS; case PR_FILE_IS_LOCKED_ERROR: return NS_ERROR_FILE_IS_LOCKED; case PR_FILE_TOO_BIG_ERROR: return NS_ERROR_FILE_TOO_BIG; case PR_NO_DEVICE_SPACE_ERROR: return NS_ERROR_FILE_NO_DEVICE_SPACE; case PR_NAME_TOO_LONG_ERROR: return NS_ERROR_FILE_NAME_TOO_LONG; case PR_DIRECTORY_NOT_EMPTY_ERROR: return NS_ERROR_FILE_DIR_NOT_EMPTY; case PR_NO_ACCESS_RIGHTS_ERROR: return NS_ERROR_FILE_ACCESS_DENIED; default: return NS_ERROR_FAILURE; } } //////////////////////////////////////////////////////////////////////////////// // This wrapper around PR_CurrentThread is simply here for debug builds so // that clients linking with xpcom don't also have to link with nspr explicitly. #if defined(NS_DEBUG) && defined(NS_MT_SUPPORTED) #include "nsISupportsUtils.h" #include "prthread.h" extern "C" NS_EXPORT void* NS_CurrentThread(void); extern "C" NS_EXPORT void NS_CheckThreadSafe(void* owningThread, const char* msg); void* NS_CurrentThread(void) { void* th = PR_CurrentThread(); return th; } /* * DON'T TOUCH THAT DIAL... * For now, we're making the thread-safety checking be on by default which, yes, slows * down linux a bit... but we're doing it so that everybody has a chance to exercise * their code a good deal before the beta. After we branch, we'll turn this back off * and then you can enable it explicitly by setting XPCOM_CHECK_THREADSAFE. This will * let you verify the thread-safety of your classes without impacting everyone all the * time. */ static PRBool gCheckThreadSafeDefault = PR_TRUE; // READ THE ABOVE COMMENT FIRST! void NS_CheckThreadSafe(void* owningThread, const char* msg) { static int check = -1; if (check == -1) { const char *eVar = getenv("XPCOM_CHECK_THREADSAFE"); if (eVar && *eVar == '0') check = 0; else check = gCheckThreadSafeDefault || eVar != 0; } if (check) { NS_ASSERTION(owningThread == NS_CurrentThread(), msg); } } #endif // !(defined(NS_DEBUG) && defined(NS_MT_SUPPORTED)) ////////////////////////////////////////////////////////////////////////////////