/*
-Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
*/
+#include "porting.h"
#include "debug.h"
-#include <stdio.h>
-#include <stdlib.h>
+#include "exceptions.h"
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <map>
+#include <sstream>
+#include <thread>
+#include "threading/mutex_auto_lock.h"
+#include "config.h"
-/*
- Debug output
-*/
-
-FILE *g_debugstreams[DEBUGSTREAM_COUNT] = {stderr, NULL};
-
-void debugstreams_init(bool disable_stderr, const char *filename)
-{
- if(disable_stderr)
- g_debugstreams[0] = NULL;
- else
- g_debugstreams[0] = stderr;
-
- if(filename)
- g_debugstreams[1] = fopen(filename, "a");
-
- if(g_debugstreams[1])
- {
- fprintf(g_debugstreams[1], "\n\n-------------\n");
- fprintf(g_debugstreams[1], " Separator \n");
- fprintf(g_debugstreams[1], "-------------\n\n");
- }
-}
-
-void debugstreams_deinit()
-{
- if(g_debugstreams[1] != NULL)
- fclose(g_debugstreams[1]);
-}
+#ifdef _MSC_VER
+ #include <dbghelp.h>
+ #include "version.h"
+ #include "filesys.h"
+#endif
-Debugbuf debugbuf(false);
-std::ostream dstream(&debugbuf);
-Debugbuf debugbuf_no_stderr(true);
-std::ostream dstream_no_stderr(&debugbuf_no_stderr);
-Nullstream dummyout;
+#if USE_CURSES
+ #include "terminal_chat_console.h"
+#endif
/*
Assert
*/
-void assert_fail(const char *assertion, const char *file,
+void sanity_check_fn(const char *assertion, const char *file,
unsigned int line, const char *function)
{
- DEBUGPRINT("\nIn thread %lx:\n"
- "%s:%d: %s: Assertion '%s' failed.\n",
- (unsigned long)get_current_thread_id(),
- file, line, function, assertion);
-
- debug_stacks_print();
+#if USE_CURSES
+ g_term_console.stopAndWaitforThread();
+#endif
- if(g_debugstreams[1])
- fclose(g_debugstreams[1]);
+ errorstream << std::endl << "In thread " << std::hex
+ << std::this_thread::get_id() << ":" << std::endl;
+ errorstream << file << ":" << line << ": " << function
+ << ": An engine assumption '" << assertion << "' failed." << std::endl;
abort();
}
-/*
- DebugStack
-*/
-
-DebugStack::DebugStack(threadid_t id)
+void fatal_error_fn(const char *msg, const char *file,
+ unsigned int line, const char *function)
{
- threadid = id;
- stack_i = 0;
- stack_max_i = 0;
- memset(stack, 0, DEBUG_STACK_SIZE*DEBUG_STACK_TEXT_SIZE);
-}
+#if USE_CURSES
+ g_term_console.stopAndWaitforThread();
+#endif
-void DebugStack::print(FILE *file, bool everything)
-{
- fprintf(file, "DEBUG STACK FOR THREAD %lx:\n",
- (unsigned long)threadid);
-
- for(int i=0; i<stack_max_i; i++)
- {
- if(i == stack_i && everything == false)
- break;
-
- if(i < stack_i)
- fprintf(file, "#%d %s\n", i, stack[i]);
- else
- fprintf(file, "(Leftover data: #%d %s)\n", i, stack[i]);
- }
+ errorstream << std::endl << "In thread " << std::hex
+ << std::this_thread::get_id() << ":" << std::endl;
+ errorstream << file << ":" << line << ": " << function
+ << ": A fatal error occurred: " << msg << std::endl;
- if(stack_i == DEBUG_STACK_SIZE)
- fprintf(file, "Probably overflown.\n");
+ abort();
}
-void DebugStack::print(std::ostream &os, bool everything)
-{
- os<<"DEBUG STACK FOR THREAD "<<(unsigned long)threadid<<": "<<std::endl;
-
- for(int i=0; i<stack_max_i; i++)
- {
- if(i == stack_i && everything == false)
- break;
+#ifdef _MSC_VER
- if(i < stack_i)
- os<<"#"<<i<<" "<<stack[i]<<std::endl;
- else
- os<<"(Leftover data: #"<<i<<" "<<stack[i]<<")"<<std::endl;
+const char *Win32ExceptionCodeToString(DWORD exception_code)
+{
+ switch (exception_code) {
+ case EXCEPTION_ACCESS_VIOLATION:
+ return "Access violation";
+ case EXCEPTION_DATATYPE_MISALIGNMENT:
+ return "Misaligned data access";
+ case EXCEPTION_BREAKPOINT:
+ return "Breakpoint reached";
+ case EXCEPTION_SINGLE_STEP:
+ return "Single debug step";
+ case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
+ return "Array access out of bounds";
+ case EXCEPTION_FLT_DENORMAL_OPERAND:
+ return "Denormal floating point operand";
+ case EXCEPTION_FLT_DIVIDE_BY_ZERO:
+ return "Floating point division by zero";
+ case EXCEPTION_FLT_INEXACT_RESULT:
+ return "Inaccurate floating point result";
+ case EXCEPTION_FLT_INVALID_OPERATION:
+ return "Invalid floating point operation";
+ case EXCEPTION_FLT_OVERFLOW:
+ return "Floating point exponent overflow";
+ case EXCEPTION_FLT_STACK_CHECK:
+ return "Floating point stack overflow or underflow";
+ case EXCEPTION_FLT_UNDERFLOW:
+ return "Floating point exponent underflow";
+ case EXCEPTION_INT_DIVIDE_BY_ZERO:
+ return "Integer division by zero";
+ case EXCEPTION_INT_OVERFLOW:
+ return "Integer overflow";
+ case EXCEPTION_PRIV_INSTRUCTION:
+ return "Privileged instruction executed";
+ case EXCEPTION_IN_PAGE_ERROR:
+ return "Could not access or load page";
+ case EXCEPTION_ILLEGAL_INSTRUCTION:
+ return "Illegal instruction encountered";
+ case EXCEPTION_NONCONTINUABLE_EXCEPTION:
+ return "Attempted to continue after fatal exception";
+ case EXCEPTION_STACK_OVERFLOW:
+ return "Stack overflow";
+ case EXCEPTION_INVALID_DISPOSITION:
+ return "Invalid disposition returned to the exception dispatcher";
+ case EXCEPTION_GUARD_PAGE:
+ return "Attempted guard page access";
+ case EXCEPTION_INVALID_HANDLE:
+ return "Invalid handle";
}
- if(stack_i == DEBUG_STACK_SIZE)
- os<<"Probably overflown."<<std::endl;
+ return "Unknown exception";
}
-core::map<threadid_t, DebugStack*> g_debug_stacks;
-JMutex g_debug_stacks_mutex;
-
-void debug_stacks_init()
+long WINAPI Win32ExceptionHandler(struct _EXCEPTION_POINTERS *pExceptInfo)
{
- g_debug_stacks_mutex.Init();
-}
+ char buf[512];
+ MINIDUMP_EXCEPTION_INFORMATION mdei;
+ MINIDUMP_USER_STREAM_INFORMATION mdusi;
+ MINIDUMP_USER_STREAM mdus;
+ bool minidump_created = false;
-void debug_stacks_print_to(std::ostream &os)
-{
- JMutexAutoLock lock(g_debug_stacks_mutex);
+ std::string dumpfile = porting::path_user + DIR_DELIM PROJECT_NAME ".dmp";
- os<<"Debug stacks:"<<std::endl;
+ std::string version_str(PROJECT_NAME " ");
+ version_str += g_version_hash;
- for(core::map<threadid_t, DebugStack*>::Iterator
- i = g_debug_stacks.getIterator();
- i.atEnd() == false; i++)
- {
- DebugStack *stack = i.getNode()->getValue();
- stack->print(os, false);
- }
-}
+ HANDLE hFile = CreateFileA(dumpfile.c_str(), GENERIC_WRITE,
+ FILE_SHARE_WRITE, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (hFile == INVALID_HANDLE_VALUE)
+ goto minidump_failed;
-void debug_stacks_print()
-{
- JMutexAutoLock lock(g_debug_stacks_mutex);
+ if (SetEndOfFile(hFile) == FALSE)
+ goto minidump_failed;
- DEBUGPRINT("Debug stacks:\n");
+ mdei.ClientPointers = NULL;
+ mdei.ExceptionPointers = pExceptInfo;
+ mdei.ThreadId = GetCurrentThreadId();
- for(core::map<threadid_t, DebugStack*>::Iterator
- i = g_debug_stacks.getIterator();
- i.atEnd() == false; i++)
- {
- DebugStack *stack = i.getNode()->getValue();
+ mdus.Type = CommentStreamA;
+ mdus.BufferSize = version_str.size();
+ mdus.Buffer = (PVOID)version_str.c_str();
- for(int i=0; i<DEBUGSTREAM_COUNT; i++)
- {
- if(g_debugstreams[i] != NULL)
- stack->print(g_debugstreams[i], true);
- }
- }
-}
+ mdusi.UserStreamArray = &mdus;
+ mdusi.UserStreamCount = 1;
-DebugStacker::DebugStacker(const char *text)
-{
- threadid_t threadid = get_current_thread_id();
+ if (MiniDumpWriteDump(GetCurrentProcess(), GetCurrentProcessId(), hFile,
+ MiniDumpNormal, &mdei, &mdusi, NULL) == FALSE)
+ goto minidump_failed;
- JMutexAutoLock lock(g_debug_stacks_mutex);
+ minidump_created = true;
- core::map<threadid_t, DebugStack*>::Node *n;
- n = g_debug_stacks.find(threadid);
- if(n != NULL)
- {
- m_stack = n->getValue();
- }
- else
- {
- /*DEBUGPRINT("Creating new debug stack for thread %x\n",
- (unsigned int)threadid);*/
- m_stack = new DebugStack(threadid);
- g_debug_stacks.insert(threadid, m_stack);
- }
+minidump_failed:
- if(m_stack->stack_i >= DEBUG_STACK_SIZE)
- {
- m_overflowed = true;
- }
+ CloseHandle(hFile);
+
+ DWORD excode = pExceptInfo->ExceptionRecord->ExceptionCode;
+ _snprintf(buf, sizeof(buf),
+ " >> === FATAL ERROR ===\n"
+ " >> %s (Exception 0x%08X) at 0x%p\n",
+ Win32ExceptionCodeToString(excode), excode,
+ pExceptInfo->ExceptionRecord->ExceptionAddress);
+ dstream << buf;
+
+ if (minidump_created)
+ dstream << " >> Saved dump to " << dumpfile << std::endl;
else
- {
- m_overflowed = false;
-
- snprintf(m_stack->stack[m_stack->stack_i],
- DEBUG_STACK_TEXT_SIZE, "%s", text);
- m_stack->stack_i++;
- if(m_stack->stack_i > m_stack->stack_max_i)
- m_stack->stack_max_i = m_stack->stack_i;
- }
-}
+ dstream << " >> Failed to save dump" << std::endl;
-DebugStacker::~DebugStacker()
-{
- JMutexAutoLock lock(g_debug_stacks_mutex);
-
- if(m_overflowed == true)
- return;
-
- m_stack->stack_i--;
-
- if(m_stack->stack_i == 0)
- {
- threadid_t threadid = m_stack->threadid;
- /*DEBUGPRINT("Deleting debug stack for thread %x\n",
- (unsigned int)threadid);*/
- delete m_stack;
- g_debug_stacks.remove(threadid);
- }
+ return EXCEPTION_EXECUTE_HANDLER;
}
+#endif
-#ifdef _MSC_VER
-#if CATCH_UNHANDLED_EXCEPTIONS == 1
-void se_trans_func(unsigned int u, EXCEPTION_POINTERS* pExp)
+void debug_set_exception_handler()
{
- dstream<<"In trans_func.\n";
- if(u == EXCEPTION_ACCESS_VIOLATION)
- {
- PEXCEPTION_RECORD r = pExp->ExceptionRecord;
- dstream<<"Access violation at "<<r->ExceptionAddress
- <<" write?="<<r->ExceptionInformation[0]
- <<" address="<<r->ExceptionInformation[1]
- <<std::endl;
- throw FatalSystemException
- ("Access violation");
- }
- if(u == EXCEPTION_STACK_OVERFLOW)
- {
- throw FatalSystemException
- ("Stack overflow");
- }
- if(u == EXCEPTION_ILLEGAL_INSTRUCTION)
- {
- throw FatalSystemException
- ("Illegal instruction");
- }
-}
-#endif
+#ifdef _MSC_VER
+ SetUnhandledExceptionFilter(Win32ExceptionHandler);
#endif
-
-
+}
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