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https://github.com/reactos/reactos.git
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- Imporved implementation of UnhandledExceptionFilter.
- Moved most of code from _except_handler in process/create.c to UnhandledExceptionFilter and changed _except_handler to call it. svn path=/trunk/; revision=10012
This commit is contained in:
Filip Navara
parent
be3d5c04da
commit
eb298d6e01
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@ -1,4 +1,4 @@
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/* $Id: except.c,v 1.14 2004/06/13 20:04:55 navaraf Exp $
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/* $Id: except.c,v 1.15 2004/07/07 16:32:01 navaraf Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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@ -12,8 +12,11 @@
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#include <k32.h>
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UINT GlobalErrMode;
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LPTOP_LEVEL_EXCEPTION_FILTER GlobalTopLevelExceptionFilter;
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#define NDEBUG
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#include "../include/debug.h"
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UINT GlobalErrMode = 0;
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LPTOP_LEVEL_EXCEPTION_FILTER GlobalTopLevelExceptionFilter = NULL;
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UINT GetErrorMode(void)
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{
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@ -50,52 +53,107 @@ SetUnhandledExceptionFilter(
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}
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/*
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* Private helper function to lookup the module name from a given address.
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* The address can point to anywhere within the module.
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*/
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static const char*
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_module_name_from_addr(const void* addr, char* psz, size_t nChars)
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{
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MEMORY_BASIC_INFORMATION mbi;
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if (VirtualQuery(addr, &mbi, sizeof(mbi)) != sizeof(mbi) ||
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!GetModuleFileNameA((HMODULE)mbi.AllocationBase, psz, nChars))
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{
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psz[0] = '\0';
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}
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return psz;
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}
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/*
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* @unimplemented
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*/
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LONG
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STDCALL
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LONG STDCALL
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UnhandledExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo)
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{
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DWORD dbgRet;
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HANDLE DebugPort;
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NTSTATUS errCode;
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DWORD RetValue;
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HANDLE DebugPort = NULL;
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NTSTATUS ErrCode;
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static int RescursionTrap = 3;
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if(ExceptionInfo->ExceptionRecord->ExceptionCode == STATUS_ACCESS_VIOLATION) {
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// might check read only resource
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// Is there a debugger running ?
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errCode = NtQueryInformationProcess(NtCurrentProcess(),ProcessDebugPort,&DebugPort,sizeof(HANDLE),NULL);
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if ( !NT_SUCCESS(errCode) ) {
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SetLastErrorByStatus(errCode);
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return EXCEPTION_EXECUTE_HANDLER;
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}
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if ( DebugPort ) {
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//return EXCEPTION_CONTINUE_SEARCH;
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}
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if(GlobalTopLevelExceptionFilter != NULL) {
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dbgRet = GlobalTopLevelExceptionFilter(ExceptionInfo);
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if(dbgRet == EXCEPTION_EXECUTE_HANDLER)
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return EXCEPTION_EXECUTE_HANDLER;
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else if(dbgRet == EXCEPTION_CONTINUE_EXECUTION)
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return EXCEPTION_CONTINUE_EXECUTION;
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}
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#if 0
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if (ExceptionInfo->ExceptionRecord->ExceptionCode == STATUS_ACCESS_VIOLATION &&
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ExceptionInfo->ExceptionRecord->ExceptionInformation[0])
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{
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RetValue = _BasepCheckForReadOnlyResource(
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ExceptionInfo->ExceptionRecord->ExceptionInformation[1]);
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if (RetValue == EXCEPTION_CONTINUE_EXECUTION)
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return EXCEPTION_CONTINUE_EXECUTION;
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}
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#endif
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}
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if (--RescursionTrap > 0)
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{
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/* Is there a debugger running ? */
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ErrCode = NtQueryInformationProcess(NtCurrentProcess(), ProcessDebugPort,
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&DebugPort, sizeof(HANDLE), NULL);
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if (!NT_SUCCESS(ErrCode) && ErrCode != STATUS_NOT_IMPLEMENTED)
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{
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SetLastErrorByStatus(ErrCode);
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return EXCEPTION_EXECUTE_HANDLER;
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}
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//if ( GetErrorMode() & SEM_NOGPFAULTERRORBOX == SEM_NOGPFAULTERRORBOX ) {
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// produce a stack trace or pop a message
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//sprintf( message, "Unhandled exception 0x%08lx at address 0x%08lx.",
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// ExceptionInfo->ExceptionRecord->ExceptionCode,
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// (DWORD)ExceptionInfo->ExceptionRecord->ExceptionAddress );
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//MessageBoxA( 0, message, "Error", MB_OK | MB_ICONHAND );
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//}
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// Returning EXCEPTION_EXECUTE_HANDLER means that the code in
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// the __execept block will be executed. Normally this will end up in a
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// Terminate process.
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if (DebugPort)
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{
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/* Pass the exception to debugger. */
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DPRINT("Passing exception to debugger\n");
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return EXCEPTION_CONTINUE_SEARCH;
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}
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return EXCEPTION_EXECUTE_HANDLER;
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/* Run unhandled exception handler. */
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if (GlobalTopLevelExceptionFilter != NULL)
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{
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RetValue = GlobalTopLevelExceptionFilter(ExceptionInfo);
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if (RetValue == EXCEPTION_EXECUTE_HANDLER)
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return EXCEPTION_EXECUTE_HANDLER;
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if (RetValue == EXCEPTION_CONTINUE_EXECUTION)
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return EXCEPTION_CONTINUE_EXECUTION;
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}
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}
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if (RescursionTrap >= 0 && (GetErrorMode() & SEM_NOGPFAULTERRORBOX) == 0)
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{
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#ifdef _X86_
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PULONG Frame;
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CHAR szMod[128] = "";
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#endif
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/* Print a stack trace. */
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DPRINT1("Unhandled exception\n");
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DPRINT1("Address:\n");
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DPRINT1(" %8x %s\n",
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ExceptionInfo->ExceptionRecord->ExceptionAddress,
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_module_name_from_addr(ExceptionInfo->ExceptionRecord->ExceptionAddress, szMod, sizeof(szMod)));
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#ifdef _X86_
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DPRINT1("Frames:\n");
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Frame = (PULONG)ExceptionInfo->ContextRecord->Ebp;
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while (Frame[1] != 0 && Frame[1] != 0xdeadbeef)
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{
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_module_name_from_addr((const void*)Frame[1], szMod, sizeof(szMod));
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DPRINT1(" %8x %s\n", Frame[1], szMod);
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Frame = (PULONG)Frame[0];
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}
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#endif
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}
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/*
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* Returning EXCEPTION_EXECUTE_HANDLER means that the code in
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* the __except block will be executed. Normally this will end up in a
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* Terminate process.
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*/
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return EXCEPTION_EXECUTE_HANDLER;
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}
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@ -1,4 +1,4 @@
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/* $Id: create.c,v 1.86 2004/07/03 17:40:22 navaraf Exp $
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/* $Id: create.c,v 1.87 2004/07/07 16:32:02 navaraf Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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@ -283,103 +283,44 @@ BOOL STDCALL CreateProcessA(LPCSTR lpApplicationName,
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}
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/*
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* Private helper function to lookup the module name from a given address.
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* The address can point to anywhere within the module.
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*/
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static const char*
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_module_name_from_addr(const void* addr, char* psz, size_t nChars)
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static EXCEPTION_DISPOSITION __cdecl
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_except_handler(EXCEPTION_RECORD *ExceptionRecord,
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void * EstablisherFrame,
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CONTEXT *ContextRecord,
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void * DispatcherContext)
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{
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MEMORY_BASIC_INFORMATION mbi;
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if (VirtualQuery(addr, &mbi, sizeof(mbi)) != sizeof(mbi) ||
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!GetModuleFileNameA((HMODULE)mbi.AllocationBase, psz, nChars))
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EXCEPTION_POINTERS ExceptionInfo;
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EXCEPTION_DISPOSITION ExceptionDisposition;
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ExceptionInfo.ExceptionRecord = ExceptionRecord;
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ExceptionInfo.ContextRecord = ContextRecord;
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ExceptionDisposition = UnhandledExceptionFilter(&ExceptionInfo);
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if (ExceptionDisposition == EXCEPTION_EXECUTE_HANDLER)
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{
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psz[0] = '\0';
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/* FIXME */
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#if 0
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if (_BaseRunningInServerProcess)
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ExitThread(ExceptionRecord->ExceptionCode);
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else
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#endif
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ExitProcess(ExceptionRecord->ExceptionCode);
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}
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return psz;
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return ExceptionDisposition;
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}
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static int _except_recursion_trap = 0;
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struct _CONTEXT;
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struct __EXCEPTION_RECORD;
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static
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EXCEPTION_DISPOSITION
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__cdecl
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_except_handler(
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struct _EXCEPTION_RECORD *ExceptionRecord,
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void * EstablisherFrame,
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struct _CONTEXT *ContextRecord,
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void * DispatcherContext )
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{
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#ifdef _X86_
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char szMod[128] = "";
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#endif
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DPRINT1("Thread terminated abnormally due to unhandled exception\n");
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DPRINT1("Address:\n");
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DPRINT1("%8x %s\n",
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ExceptionRecord->ExceptionAddress,
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_module_name_from_addr(ExceptionRecord->ExceptionAddress, szMod, sizeof(szMod)));
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#ifdef _X86_
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{
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PULONG Frame;
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DPRINT1("Frames:\n");
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Frame = (PULONG)((CONTEXT *)ContextRecord)->Ebp;
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while ((PVOID)Frame[1] != NULL && (PULONG)Frame[1] != (PULONG)0xdeadbeef)
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{
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_module_name_from_addr((const void*)Frame[1], szMod, sizeof(szMod));
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DPRINT1("%8x %s\n", (PVOID)Frame[1], szMod);
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Frame = (PULONG)Frame[0];
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}
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}
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#endif
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if (3 < ++_except_recursion_trap)
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{
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DPRINT1("_except_handler(...) appears to be recursing.\n");
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DPRINT1("Process HALTED.\n");
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for (;;)
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{
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}
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}
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if (/* FIXME: */ TRUE) /* Not a service */
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{
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DPRINT(" calling ExitProcess(0) no, lets try ExitThread . . .\n");
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/* ExitProcess(0); */
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ExitThread(0);
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}
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else
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{
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DPRINT(" calling ExitThread(0) . . .\n");
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ExitThread(0);
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}
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DPRINT1(" We should not get to here !!!\n");
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/* We should not get to here */
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return ExceptionContinueSearch;
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}
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VOID STDCALL
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BaseProcessStart(LPTHREAD_START_ROUTINE lpStartAddress,
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DWORD lpParameter)
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{
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UINT uExitCode = 0;
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UINT uExitCode = 0;
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DPRINT("BaseProcessStart(..) - setting up exception frame.\n");
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DPRINT("BaseProcessStart(..) - setting up exception frame.\n");
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__try1(_except_handler)
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{
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uExitCode = (lpStartAddress)((PVOID)lpParameter);
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} __except1
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{
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}
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DPRINT("BaseProcessStart(..) - cleaned up exception frame.\n");
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ExitThread(uExitCode);
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__try1(_except_handler)
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{
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uExitCode = (lpStartAddress)((PVOID)lpParameter);
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} __except1
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}
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