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Sweden-Number/debugger/winedbg.c

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/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/* Wine internal debugger
* Interface to Windows debugger API
* Copyright 2000 Eric Pouech
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "debugger.h"
#include "ntddk.h"
#include "thread.h"
#include "wincon.h"
#include "winreg.h"
#include "wingdi.h"
#include "winuser.h"
#include "msvcrt/excpt.h"
#include "wine/library.h"
DBG_PROCESS* DEBUG_CurrProcess = NULL;
DBG_THREAD* DEBUG_CurrThread = NULL;
DWORD DEBUG_CurrTid;
DWORD DEBUG_CurrPid;
CONTEXT DEBUG_context;
BOOL DEBUG_interactiveP = FALSE;
enum exit_mode DEBUG_ExitMode = EXIT_CONTINUE;
int curr_frame = 0;
int automatic_mode = 0;
static char* DEBUG_LastCmdLine = NULL;
static DBG_PROCESS* DEBUG_ProcessList = NULL;
DBG_INTVAR DEBUG_IntVars[DBG_IV_LAST];
void DEBUG_OutputA(int chn, const char* buffer, int len)
{
if (DBG_IVAR(ConChannelMask) & chn)
WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), buffer, len, NULL, NULL);
if (DBG_IVAR(StdChannelMask) & chn)
fwrite(buffer, len, 1, stderr);
}
void DEBUG_OutputW(int chn, const WCHAR* buffer, int len)
{
/* FIXME: this won't work is std output isn't attached to a console */
if (DBG_IVAR(ConChannelMask) & chn)
WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), buffer, len, NULL, NULL);
/* simplistic Unicode to ANSI conversion */
if (DBG_IVAR(StdChannelMask) & chn)
while (len--) fputc((char)*buffer++, stderr);
}
int DEBUG_Printf(int chn, const char* format, ...)
{
static char buf[4*1024];
va_list valist;
int len;
va_start(valist, format);
len = vsnprintf(buf, sizeof(buf), format, valist);
va_end(valist);
if (len <= -1 || len >= sizeof(buf)) {
len = sizeof(buf) - 1;
buf[len] = 0;
buf[len - 1] = buf[len - 2] = buf[len - 3] = '.';
}
DEBUG_OutputA(chn, buf, len);
return len;
}
static BOOL DEBUG_IntVarsRW(int read)
{
HKEY hkey;
DWORD type = REG_DWORD;
DWORD val;
DWORD count = sizeof(val);
int i;
DBG_INTVAR* div = DEBUG_IntVars;
if (read) {
/* initializes internal vars table */
#define INTERNAL_VAR(_var,_val,_ref,_typ) \
div->val = _val; div->name = #_var; div->pval = _ref; \
div->type = DEBUG_GetBasicType(_typ); div++;
#include "intvar.h"
#undef INTERNAL_VAR
}
if (RegCreateKeyA(HKEY_CURRENT_USER, "Software\\Wine\\WineDbg", &hkey)) {
/* since the IVars are not yet setup, DEBUG_Printf doesn't work,
* so don't use it */
fprintf(stderr, "Cannot create WineDbg key in registry\n");
return FALSE;
}
for (i = 0; i < DBG_IV_LAST; i++) {
if (read) {
if (!DEBUG_IntVars[i].pval) {
if (!RegQueryValueEx(hkey, DEBUG_IntVars[i].name, 0,
&type, (LPSTR)&val, &count))
DEBUG_IntVars[i].val = val;
DEBUG_IntVars[i].pval = &DEBUG_IntVars[i].val;
} else {
*DEBUG_IntVars[i].pval = 0;
}
} else {
/* FIXME: type should be infered from basic type -if any- of intvar */
if (DEBUG_IntVars[i].pval == &DEBUG_IntVars[i].val)
RegSetValueEx(hkey, DEBUG_IntVars[i].name, 0,
type, (LPCVOID)DEBUG_IntVars[i].pval, count);
}
}
RegCloseKey(hkey);
return TRUE;
}
DBG_INTVAR* DEBUG_GetIntVar(const char* name)
{
int i;
for (i = 0; i < DBG_IV_LAST; i++) {
if (!strcmp(DEBUG_IntVars[i].name, name))
return &DEBUG_IntVars[i];
}
return NULL;
}
static WINE_EXCEPTION_FILTER(wine_dbg)
{
DEBUG_Printf(DBG_CHN_MESG, "\nwine_dbg: Exception (%lx) inside debugger, continuing...\n", GetExceptionCode());
DEBUG_ExternalDebugger();
return EXCEPTION_EXECUTE_HANDLER;
}
DBG_PROCESS* DEBUG_GetProcess(DWORD pid)
{
DBG_PROCESS* p;
for (p = DEBUG_ProcessList; p; p = p->next)
if (p->pid == pid) break;
return p;
}
static DBG_PROCESS* DEBUG_AddProcess(DWORD pid, HANDLE h, const char* imageName)
{
DBG_PROCESS* p = DBG_alloc(sizeof(DBG_PROCESS));
if (!p)
return NULL;
p->handle = h;
p->pid = pid;
p->imageName = imageName ? DBG_strdup(imageName) : NULL;
p->threads = NULL;
p->num_threads = 0;
p->continue_on_first_exception = FALSE;
p->modules = NULL;
p->num_modules = 0;
p->next_index = 0;
p->dbg_hdr_addr = 0;
p->delayed_bp = NULL;
p->num_delayed_bp = 0;
p->next = DEBUG_ProcessList;
p->prev = NULL;
if (DEBUG_ProcessList) DEBUG_ProcessList->prev = p;
DEBUG_ProcessList = p;
return p;
}
static void DEBUG_DelThread(DBG_THREAD* p);
static void DEBUG_DelProcess(DBG_PROCESS* p)
{
int i;
if (p->threads != NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Shouldn't happen\n");
while (p->threads) DEBUG_DelThread(p->threads);
}
for (i = 0; i < p->num_delayed_bp; i++) {
DBG_free(p->delayed_bp[i].name);
}
DBG_free(p->delayed_bp);
if (p->prev) p->prev->next = p->next;
if (p->next) p->next->prev = p->prev;
if (p == DEBUG_ProcessList) DEBUG_ProcessList = p->next;
if (p == DEBUG_CurrProcess) DEBUG_CurrProcess = NULL;
DBG_free((char*)p->imageName);
DBG_free(p);
}
static void DEBUG_InitCurrProcess(void)
{
}
static BOOL DEBUG_ProcessGetString(char* buffer, int size, HANDLE hp, LPSTR addr)
{
DWORD sz;
*(WCHAR*)buffer = 0;
return (addr && ReadProcessMemory(hp, addr, buffer, size, &sz));
}
static BOOL DEBUG_ProcessGetStringIndirect(char* buffer, int size, HANDLE hp, LPVOID addr)
{
LPVOID ad;
DWORD sz;
if ( addr
&& ReadProcessMemory(hp, addr, &ad, sizeof(ad), &sz)
&& sz == sizeof(ad)
&& ad
&& ReadProcessMemory(hp, ad, buffer, size, &sz))
return TRUE;
*(WCHAR*)buffer = 0;
return FALSE;
}
DBG_THREAD* DEBUG_GetThread(DBG_PROCESS* p, DWORD tid)
{
DBG_THREAD* t;
for (t = p->threads; t; t = t->next)
if (t->tid == tid) break;
return t;
}
static DBG_THREAD* DEBUG_AddThread(DBG_PROCESS* p, DWORD tid,
HANDLE h, LPVOID start, LPVOID teb)
{
DBG_THREAD* t = DBG_alloc(sizeof(DBG_THREAD));
if (!t)
return NULL;
t->handle = h;
t->tid = tid;
t->start = start;
t->teb = teb;
t->process = p;
t->wait_for_first_exception = 0;
t->exec_mode = EXEC_CONT;
t->exec_count = 0;
sprintf(t->name, "%08lx", tid);
p->num_threads++;
t->next = p->threads;
t->prev = NULL;
if (p->threads) p->threads->prev = t;
p->threads = t;
return t;
}
static void DEBUG_InitCurrThread(void)
{
if (DEBUG_CurrThread->start) {
if (DEBUG_CurrThread->process->num_threads == 1 ||
DBG_IVAR(BreakAllThreadsStartup)) {
DBG_VALUE value;
DEBUG_SetBreakpoints(FALSE);
value.type = NULL;
value.cookie = DV_TARGET;
value.addr.seg = 0;
value.addr.off = (DWORD)DEBUG_CurrThread->start;
DEBUG_AddBreakpoint(&value, NULL);
DEBUG_SetBreakpoints(TRUE);
}
} else {
DEBUG_CurrThread->wait_for_first_exception = 1;
}
}
static void DEBUG_DelThread(DBG_THREAD* t)
{
if (t->prev) t->prev->next = t->next;
if (t->next) t->next->prev = t->prev;
if (t == t->process->threads) t->process->threads = t->next;
t->process->num_threads--;
if (t == DEBUG_CurrThread) DEBUG_CurrThread = NULL;
DBG_free(t);
}
BOOL DEBUG_Attach(DWORD pid, BOOL cofe)
{
if (!(DEBUG_CurrProcess = DEBUG_AddProcess(pid, 0, NULL))) return FALSE;
if (!DebugActiveProcess(pid)) {
DEBUG_Printf(DBG_CHN_MESG, "Can't attach process %lx: error %ld\n", pid, GetLastError());
DEBUG_DelProcess(DEBUG_CurrProcess);
DEBUG_CurrProcess = NULL;
return FALSE;
}
DEBUG_CurrProcess->continue_on_first_exception = cofe;
return TRUE;
}
BOOL DEBUG_Detach(void)
{
/* remove all set breakpoints in debuggee code */
DEBUG_SetBreakpoints(FALSE);
/* needed for single stepping (ugly).
* should this be handled inside the server ??? */
#ifdef __i386__
DEBUG_context.EFlags &= ~STEP_FLAG;
#endif
SetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context);
DebugActiveProcessStop(DEBUG_CurrProcess->pid);
DEBUG_DelProcess(DEBUG_CurrProcess);
DEBUG_CurrProcess = NULL;
/* FIXME: should zero out the symbol table too */
return TRUE;
}
static BOOL DEBUG_ExceptionProlog(BOOL is_debug, BOOL force, DWORD code)
{
DBG_ADDR addr;
int newmode;
DEBUG_GetCurrentAddress(&addr);
DEBUG_SuspendExecution();
if (!is_debug) {
if (!addr.seg)
DEBUG_Printf(DBG_CHN_MESG, " in 32-bit code (0x%08lx)", addr.off);
else
switch(DEBUG_GetSelectorType(addr.seg))
{
case MODE_32:
DEBUG_Printf(DBG_CHN_MESG, " in 32-bit code (%04lx:%08lx)", addr.seg, addr.off);
break;
case MODE_16:
DEBUG_Printf(DBG_CHN_MESG, " in 16-bit code (%04lx:%04lx)", addr.seg, addr.off);
break;
case MODE_VM86:
DEBUG_Printf(DBG_CHN_MESG, " in vm86 code (%04lx:%04lx)", addr.seg, addr.off);
break;
case MODE_INVALID:
DEBUG_Printf(DBG_CHN_MESG, " bad CS (%lx)", addr.seg);
break;
}
DEBUG_Printf(DBG_CHN_MESG, ".\n");
}
DEBUG_LoadEntryPoints("Loading new modules symbols:\n");
if (!force && is_debug &&
DEBUG_ShouldContinue(&addr, code,
&DEBUG_CurrThread->exec_count))
return FALSE;
if ((newmode = DEBUG_GetSelectorType(addr.seg)) == MODE_INVALID) newmode = MODE_32;
if (newmode != DEBUG_CurrThread->dbg_mode)
{
static const char * const names[] = { "???", "16-bit", "32-bit", "vm86" };
DEBUG_Printf(DBG_CHN_MESG,"In %s mode.\n", names[newmode] );
DEBUG_CurrThread->dbg_mode = newmode;
}
DEBUG_DoDisplay();
if (is_debug || force) {
/*
* Do a quiet backtrace so that we have an idea of what the situation
* is WRT the source files.
*/
DEBUG_BackTrace(DEBUG_CurrTid, FALSE);
} else {
/* This is a real crash, dump some info */
DEBUG_InfoRegisters();
DEBUG_InfoStack();
#ifdef __i386__
if (DEBUG_CurrThread->dbg_mode == MODE_16) {
DEBUG_InfoSegments(DEBUG_context.SegDs >> 3, 1);
if (DEBUG_context.SegEs != DEBUG_context.SegDs)
DEBUG_InfoSegments(DEBUG_context.SegEs >> 3, 1);
}
DEBUG_InfoSegments(DEBUG_context.SegFs >> 3, 1);
#endif
DEBUG_BackTrace(DEBUG_CurrTid, TRUE);
}
if (!is_debug ||
(DEBUG_CurrThread->exec_mode == EXEC_STEPI_OVER) ||
(DEBUG_CurrThread->exec_mode == EXEC_STEPI_INSTR)) {
struct list_id list;
/* Show where we crashed */
curr_frame = 0;
DEBUG_DisassembleInstruction(&addr);
/* resets list internal arguments so we can look at source code when needed */
DEBUG_FindNearestSymbol(&addr, TRUE, NULL, 0, &list);
if (list.sourcefile) DEBUG_List(&list, NULL, 0);
}
return TRUE;
}
static void DEBUG_ExceptionEpilog(void)
{
DEBUG_RestartExecution(DEBUG_CurrThread->exec_count);
/*
* This will have gotten absorbed into the breakpoint info
* if it was used. Otherwise it would have been ignored.
* In any case, we don't mess with it any more.
*/
if (DEBUG_CurrThread->exec_mode == EXEC_CONT)
DEBUG_CurrThread->exec_count = 0;
}
static void DEBUG_HandleException(EXCEPTION_RECORD *rec, BOOL first_chance, BOOL force)
{
BOOL is_debug = FALSE;
THREADNAME_INFO *pThreadName;
DBG_THREAD *pThread;
assert(DEBUG_CurrThread);
DEBUG_ExitMode = EXIT_CONTINUE;
switch (rec->ExceptionCode)
{
case EXCEPTION_BREAKPOINT:
case EXCEPTION_SINGLE_STEP:
is_debug = TRUE;
break;
case EXCEPTION_NAME_THREAD:
pThreadName = (THREADNAME_INFO*)(rec->ExceptionInformation);
if (pThreadName->dwThreadID == -1)
pThread = DEBUG_CurrThread;
else
pThread = DEBUG_GetThread(DEBUG_CurrProcess, pThreadName->dwThreadID);
if (ReadProcessMemory(DEBUG_CurrThread->process->handle, pThreadName->szName,
pThread->name, 9, NULL))
DEBUG_Printf (DBG_CHN_MESG,
"Thread ID=0x%lx renamed using MS VC6 extension (name==\"%s\")\n",
pThread->tid, pThread->name);
return;
}
if (first_chance && !is_debug && !force && !DBG_IVAR(BreakOnFirstChance))
{
/* pass exception to program except for debug exceptions */
if (!is_debug) DEBUG_ExitMode = EXIT_PASS;
return;
}
if (!is_debug)
{
/* print some infos */
DEBUG_Printf(DBG_CHN_MESG, "%s: ",
first_chance ? "First chance exception" : "Unhandled exception");
switch (rec->ExceptionCode)
{
case EXCEPTION_INT_DIVIDE_BY_ZERO:
DEBUG_Printf(DBG_CHN_MESG, "divide by zero");
break;
case EXCEPTION_INT_OVERFLOW:
DEBUG_Printf(DBG_CHN_MESG, "overflow");
break;
case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
DEBUG_Printf(DBG_CHN_MESG, "array bounds ");
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
DEBUG_Printf(DBG_CHN_MESG, "illegal instruction");
break;
case EXCEPTION_STACK_OVERFLOW:
DEBUG_Printf(DBG_CHN_MESG, "stack overflow");
break;
case EXCEPTION_PRIV_INSTRUCTION:
DEBUG_Printf(DBG_CHN_MESG, "privileged instruction");
break;
case EXCEPTION_ACCESS_VIOLATION:
if (rec->NumberParameters == 2)
DEBUG_Printf(DBG_CHN_MESG, "page fault on %s access to 0x%08lx",
rec->ExceptionInformation[0] ? "write" : "read",
rec->ExceptionInformation[1]);
else
DEBUG_Printf(DBG_CHN_MESG, "page fault");
break;
case EXCEPTION_DATATYPE_MISALIGNMENT:
DEBUG_Printf(DBG_CHN_MESG, "Alignment");
break;
case DBG_CONTROL_C:
DEBUG_Printf(DBG_CHN_MESG, "^C");
break;
case CONTROL_C_EXIT:
DEBUG_Printf(DBG_CHN_MESG, "^C");
break;
case EXCEPTION_CRITICAL_SECTION_WAIT:
{
DBG_ADDR addr;
addr.seg = 0;
addr.off = rec->ExceptionInformation[0];
DEBUG_Printf(DBG_CHN_MESG, "wait failed on critical section ");
DEBUG_PrintAddress(&addr, DEBUG_CurrThread->dbg_mode, FALSE);
}
if (!DBG_IVAR(BreakOnCritSectTimeOut))
{
DEBUG_Printf(DBG_CHN_MESG, "\n");
return;
}
break;
case EXCEPTION_WINE_STUB:
{
char dll[32], name[64];
DEBUG_ProcessGetString( dll, sizeof(dll), DEBUG_CurrThread->process->handle,
(char *)rec->ExceptionInformation[0] );
DEBUG_ProcessGetString( name, sizeof(name), DEBUG_CurrThread->process->handle,
(char *)rec->ExceptionInformation[1] );
DEBUG_Printf(DBG_CHN_MESG, "unimplemented function %s.%s called", dll, name );
}
break;
case EXCEPTION_VM86_INTx:
DEBUG_Printf(DBG_CHN_MESG, "interrupt %02lx in vm86 mode",
rec->ExceptionInformation[0]);
break;
case EXCEPTION_VM86_STI:
DEBUG_Printf(DBG_CHN_MESG, "sti in vm86 mode");
break;
case EXCEPTION_VM86_PICRETURN:
DEBUG_Printf(DBG_CHN_MESG, "PIC return in vm86 mode");
break;
default:
DEBUG_Printf(DBG_CHN_MESG, "%08lx", rec->ExceptionCode);
break;
}
}
#if 0
DEBUG_Printf(DBG_CHN_TRACE,
"Entering debugger PC=%lx EFL=%08lx mode=%d count=%d\n",
#ifdef __i386__
DEBUG_context.Eip, DEBUG_context.EFlags,
#else
0L, 0L,
#endif
DEBUG_CurrThread->exec_mode, DEBUG_CurrThread->exec_count);
#endif
if (automatic_mode)
{
DEBUG_ExceptionProlog(is_debug, FALSE, rec->ExceptionCode);
DEBUG_ExitMode = EXIT_QUIT;
return; /* terminate execution */
}
if (DEBUG_ExceptionProlog(is_debug, force, rec->ExceptionCode)) {
DEBUG_interactiveP = TRUE;
for (;;)
{
DEBUG_Parser();
if (DEBUG_ExitMode == EXIT_QUIT || DEBUG_ExitMode == EXIT_DETACH)
break;
if (DEBUG_ValidateRegisters()) {
if (DEBUG_ExitMode == EXIT_CONTINUE || first_chance)
break;
DEBUG_Printf(DBG_CHN_MESG, "Cannot pass on last chance exception. You must use cont\n");
}
}
DEBUG_interactiveP = FALSE;
}
DEBUG_ExceptionEpilog();
#if 0
DEBUG_Printf(DBG_CHN_TRACE,
"Exiting debugger PC=%lx EFL=%08lx mode=%d count=%d\n",
#ifdef __i386__
DEBUG_context.Eip, DEBUG_context.EFlags,
#else
0L, 0L,
#endif
DEBUG_CurrThread->exec_mode, DEBUG_CurrThread->exec_count);
#endif
}
static void DEBUG_HandleDebugEvent(DEBUG_EVENT* de)
{
char buffer[256];
DEBUG_CurrPid = de->dwProcessId;
DEBUG_CurrTid = de->dwThreadId;
DEBUG_ExitMode = EXIT_CONTINUE;
__TRY {
if ((DEBUG_CurrProcess = DEBUG_GetProcess(de->dwProcessId)) != NULL)
DEBUG_CurrThread = DEBUG_GetThread(DEBUG_CurrProcess, de->dwThreadId);
else
DEBUG_CurrThread = NULL;
switch (de->dwDebugEventCode) {
case EXCEPTION_DEBUG_EVENT:
if (!DEBUG_CurrThread) {
DEBUG_Printf(DBG_CHN_ERR, "%08lx:%08lx: not a registered process or thread (perhaps a 16 bit one ?)\n",
de->dwProcessId, de->dwThreadId);
break;
}
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: exception code=%08lx\n",
de->dwProcessId, de->dwThreadId,
de->u.Exception.ExceptionRecord.ExceptionCode);
if (DEBUG_CurrProcess->continue_on_first_exception) {
DEBUG_CurrProcess->continue_on_first_exception = FALSE;
if (!DBG_IVAR(BreakOnAttach)) {
break;
}
}
DEBUG_context.ContextFlags = CONTEXT_CONTROL
| CONTEXT_INTEGER
#ifdef CONTEXT_SEGMENTS
| CONTEXT_SEGMENTS
#endif
#ifdef CONTEXT_DEBUG_REGISTERS
| CONTEXT_DEBUG_REGISTERS
#endif
;
if (!GetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context)) {
DEBUG_Printf(DBG_CHN_WARN, "Can't get thread's context\n");
break;
}
DEBUG_HandleException(&de->u.Exception.ExceptionRecord,
de->u.Exception.dwFirstChance,
DEBUG_CurrThread->wait_for_first_exception);
if (DEBUG_CurrThread) {
DEBUG_CurrThread->wait_for_first_exception = 0;
SetThreadContext(DEBUG_CurrThread->handle, &DEBUG_context);
}
break;
case CREATE_THREAD_DEBUG_EVENT:
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: create thread D @%08lx\n", de->dwProcessId, de->dwThreadId,
(unsigned long)(LPVOID)de->u.CreateThread.lpStartAddress);
if (DEBUG_CurrProcess == NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Unknown process\n");
break;
}
if (DEBUG_GetThread(DEBUG_CurrProcess, de->dwThreadId) != NULL) {
DEBUG_Printf(DBG_CHN_TRACE, "Thread already listed, skipping\n");
break;
}
DEBUG_CurrThread = DEBUG_AddThread(DEBUG_CurrProcess,
de->dwThreadId,
de->u.CreateThread.hThread,
de->u.CreateThread.lpStartAddress,
de->u.CreateThread.lpThreadLocalBase);
if (!DEBUG_CurrThread) {
DEBUG_Printf(DBG_CHN_ERR, "Couldn't create thread\n");
break;
}
DEBUG_InitCurrThread();
break;
case CREATE_PROCESS_DEBUG_EVENT:
DEBUG_ProcessGetStringIndirect(buffer, sizeof(buffer),
de->u.CreateProcessInfo.hProcess,
de->u.CreateProcessInfo.lpImageName);
/* FIXME unicode ? de->u.CreateProcessInfo.fUnicode */
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: create process '%s'/%p @%08lx (%ld<%ld>)\n",
de->dwProcessId, de->dwThreadId,
buffer, de->u.CreateProcessInfo.lpImageName,
(unsigned long)(LPVOID)de->u.CreateProcessInfo.lpStartAddress,
de->u.CreateProcessInfo.dwDebugInfoFileOffset,
de->u.CreateProcessInfo.nDebugInfoSize);
if ((DEBUG_CurrProcess = DEBUG_GetProcess(de->dwProcessId)) != NULL) {
if (DEBUG_CurrProcess->handle) {
DEBUG_Printf(DBG_CHN_ERR, "Skipping already defined process\n");
break;
}
DEBUG_CurrProcess->handle = de->u.CreateProcessInfo.hProcess;
if (DEBUG_CurrProcess->imageName == NULL)
DEBUG_CurrProcess->imageName = DBG_strdup(buffer[0] ? buffer : "<Debugged Process>");
} else {
DEBUG_CurrProcess = DEBUG_AddProcess(de->dwProcessId,
de->u.CreateProcessInfo.hProcess,
buffer[0] ? buffer : "<Debugged Process>");
if (DEBUG_CurrProcess == NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Unknown process\n");
break;
}
}
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: create thread I @%08lx\n",
de->dwProcessId, de->dwThreadId,
(unsigned long)(LPVOID)de->u.CreateProcessInfo.lpStartAddress);
DEBUG_CurrThread = DEBUG_AddThread(DEBUG_CurrProcess,
de->dwThreadId,
de->u.CreateProcessInfo.hThread,
de->u.CreateProcessInfo.lpStartAddress,
de->u.CreateProcessInfo.lpThreadLocalBase);
if (!DEBUG_CurrThread) {
DEBUG_Printf(DBG_CHN_ERR, "Couldn't create thread\n");
break;
}
DEBUG_InitCurrProcess();
DEBUG_InitCurrThread();
/* module is either PE, NE or ELF module (for WineLib), but all
* are loaded with wine, so load its symbols, then the main module
*/
do
{
char* ptr = getenv("WINELOADER");
if (!ptr || DEBUG_ReadExecutableDbgInfo( ptr ) == DIL_ERROR)
DEBUG_ReadExecutableDbgInfo( "wine" );
} while (0);
DEBUG_LoadModule32(DEBUG_CurrProcess->imageName, de->u.CreateProcessInfo.hFile,
(DWORD)de->u.CreateProcessInfo.lpBaseOfImage);
break;
case EXIT_THREAD_DEBUG_EVENT:
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: exit thread (%ld)\n",
de->dwProcessId, de->dwThreadId, de->u.ExitThread.dwExitCode);
if (DEBUG_CurrThread == NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Unknown thread\n");
break;
}
/* FIXME: remove break point set on thread startup */
DEBUG_DelThread(DEBUG_CurrThread);
break;
case EXIT_PROCESS_DEBUG_EVENT:
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: exit process (%ld)\n",
de->dwProcessId, de->dwThreadId, de->u.ExitProcess.dwExitCode);
if (DEBUG_CurrProcess == NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Unknown process\n");
break;
}
/* just in case */
DEBUG_SetBreakpoints(FALSE);
/* kill last thread */
DEBUG_DelThread(DEBUG_CurrProcess->threads);
DEBUG_DelProcess(DEBUG_CurrProcess);
DEBUG_Printf(DBG_CHN_MESG, "Process of pid=%08lx has terminated\n", DEBUG_CurrPid);
break;
case LOAD_DLL_DEBUG_EVENT:
if (DEBUG_CurrThread == NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Unknown thread\n");
break;
}
DEBUG_ProcessGetStringIndirect(buffer, sizeof(buffer),
DEBUG_CurrThread->process->handle,
de->u.LoadDll.lpImageName);
/* FIXME unicode: de->u.LoadDll.fUnicode */
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: loads DLL %s @%08lx (%ld<%ld>)\n",
de->dwProcessId, de->dwThreadId,
buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll,
de->u.LoadDll.dwDebugInfoFileOffset,
de->u.LoadDll.nDebugInfoSize);
_strupr(buffer);
DEBUG_LoadModule32(buffer, de->u.LoadDll.hFile, (DWORD)de->u.LoadDll.lpBaseOfDll);
DEBUG_CheckDelayedBP();
if (DBG_IVAR(BreakOnDllLoad)) {
DEBUG_Printf(DBG_CHN_MESG, "Stopping on DLL %s loading at %08lx\n",
buffer, (unsigned long)de->u.LoadDll.lpBaseOfDll);
DEBUG_Parser();
}
break;
case UNLOAD_DLL_DEBUG_EVENT:
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: unload DLL @%08lx\n", de->dwProcessId, de->dwThreadId,
(unsigned long)de->u.UnloadDll.lpBaseOfDll);
break;
case OUTPUT_DEBUG_STRING_EVENT:
if (DEBUG_CurrThread == NULL) {
DEBUG_Printf(DBG_CHN_ERR, "Unknown thread\n");
break;
}
DEBUG_ProcessGetString(buffer, sizeof(buffer),
DEBUG_CurrThread->process->handle,
de->u.DebugString.lpDebugStringData);
/* FIXME unicode de->u.DebugString.fUnicode ? */
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: output debug string (%s)\n",
de->dwProcessId, de->dwThreadId, buffer);
break;
case RIP_EVENT:
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: rip error=%ld type=%ld\n",
de->dwProcessId, de->dwThreadId, de->u.RipInfo.dwError,
de->u.RipInfo.dwType);
break;
default:
DEBUG_Printf(DBG_CHN_TRACE, "%08lx:%08lx: unknown event (%ld)\n",
de->dwProcessId, de->dwThreadId, de->dwDebugEventCode);
}
} __EXCEPT(wine_dbg) {
DEBUG_ExitMode = EXIT_CONTINUE;
}
__ENDTRY;
}
static DWORD DEBUG_MainLoop(void)
{
DEBUG_EVENT de;
DEBUG_Printf(DBG_CHN_MESG, " on pid %lx\n", DEBUG_CurrPid);
while (DEBUG_ExitMode == EXIT_CONTINUE)
{
/* wait until we get at least one loaded process */
while (!DEBUG_ProcessList)
{
DEBUG_Parser();
if (DEBUG_ExitMode == EXIT_CONTINUE || DEBUG_ExitMode == EXIT_QUIT) break;
}
if (DEBUG_ExitMode != EXIT_CONTINUE) break;
while ((DEBUG_ExitMode == EXIT_CONTINUE || DEBUG_ExitMode == EXIT_PASS) &&
DEBUG_ProcessList &&
WaitForDebugEvent(&de, INFINITE))
{
DEBUG_HandleDebugEvent(&de);
ContinueDebugEvent(de.dwProcessId, de.dwThreadId,
(DEBUG_ExitMode == EXIT_PASS) ? DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE);
}
if (DEBUG_ExitMode == EXIT_DETACH && DEBUG_Detach())
{
/* DEBUG_ExitMode = EXIT_CONTINUE; */
/* FIXME: as we don't have a simple way to zero out the process symbol table
* we simply quit the debugger on detach...
*/
DEBUG_ExitMode = EXIT_QUIT;
}
}
DEBUG_Printf(DBG_CHN_MESG, "WineDbg terminated on pid %lx\n", DEBUG_CurrPid);
return 0;
}
static DWORD DEBUG_AutoMode(void)
{
DEBUG_EVENT de;
DEBUG_Printf(DBG_CHN_MESG, " on pid %lx\n", DEBUG_CurrPid);
while ((DEBUG_ExitMode == EXIT_CONTINUE || DEBUG_ExitMode == EXIT_PASS) &&
DEBUG_ProcessList &&
WaitForDebugEvent(&de, INFINITE))
{
DEBUG_HandleDebugEvent(&de);
ContinueDebugEvent(de.dwProcessId, de.dwThreadId,
(DEBUG_ExitMode == EXIT_PASS) ? DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE);
}
/* print some extra information */
DEBUG_Printf(DBG_CHN_MESG, "Modules:\n");
DEBUG_WalkModules();
DEBUG_Printf(DBG_CHN_MESG, "Threads:\n");
DEBUG_WalkThreads();
DEBUG_Printf(DBG_CHN_MESG, "WineDbg terminated on pid %lx\n", DEBUG_CurrPid);
return 0;
}
static BOOL DEBUG_Start(LPSTR cmdLine)
{
PROCESS_INFORMATION info;
STARTUPINFOA startup;
memset(&startup, 0, sizeof(startup));
startup.cb = sizeof(startup);
startup.dwFlags = STARTF_USESHOWWINDOW;
startup.wShowWindow = SW_SHOWNORMAL;
if (!CreateProcess(NULL, cmdLine, NULL, NULL,
FALSE, DEBUG_PROCESS|DETACHED_PROCESS, NULL, NULL, &startup, &info)) {
DEBUG_Printf(DBG_CHN_MESG, "Couldn't start process '%s'\n", cmdLine);
return FALSE;
}
DEBUG_CurrPid = info.dwProcessId;
if (!(DEBUG_CurrProcess = DEBUG_AddProcess(DEBUG_CurrPid, 0, NULL))) return FALSE;
return TRUE;
}
void DEBUG_Run(const char* args)
{
DBG_MODULE* wmod = DEBUG_GetProcessMainModule(DEBUG_CurrProcess);
const char* pgm = (wmod) ? wmod->module_name : "none";
if (args) {
DEBUG_Printf(DBG_CHN_MESG, "Run (%s) with '%s'\n", pgm, args);
} else {
if (!DEBUG_LastCmdLine) {
DEBUG_Printf(DBG_CHN_MESG, "Cannot find previously used command line.\n");
return;
}
DEBUG_Start(DEBUG_LastCmdLine);
}
}
static BOOL WINAPI DEBUG_CtrlCHandler(DWORD dwCtrlType)
{
if (dwCtrlType == CTRL_C_EVENT)
{
DEBUG_Printf(DBG_CHN_MESG, "Ctrl-C: stopping debuggee\n");
/* FIXME: since we likely have a single process, signal the first process
* in list
*/
return DEBUG_ProcessList && DebugBreakProcess(DEBUG_ProcessList->handle);
}
return FALSE;
}
static void DEBUG_InitConsole(void)
{
COORD c;
SMALL_RECT sr;
DWORD mode;
/* keep it as a cuiexe for now, so that Wine won't touch the Unix stdin,
* stdout and stderr streams
*/
if (DBG_IVAR(UseXTerm))
{
FreeConsole();
AllocConsole();
}
/* this would be nicer for output */
c.X = 132;
c.Y = 500;
SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), c);
/* sets the console's window width accordingly */
sr.Left = 0;
sr.Top = 0;
sr.Right = c.X - 1;
sr.Bottom = 50;
SetConsoleWindowInfo(GetStdHandle(STD_OUTPUT_HANDLE), TRUE, &sr);
/* put the line editing mode with the nice emacs features (FIXME: could be triggered by a IVAR) */
if (GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), &mode))
SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), mode | WINE_ENABLE_LINE_INPUT_EMACS);
/* set our control-C handler */
SetConsoleCtrlHandler(DEBUG_CtrlCHandler, TRUE);
}
int main(int argc, char** argv)
{
DWORD retv = 0;
/* Initialize the type handling stuff. */
DEBUG_InitTypes();
DEBUG_InitCVDataTypes();
/* Initialize internal vars (types must have been initialized before) */
if (!DEBUG_IntVarsRW(TRUE)) return -1;
/* parse options */
while (argc > 1 && argv[1][0] == '-')
{
if (!strcmp( argv[1], "--auto" ))
{
automatic_mode = 1;
/* force some internal variables */
DBG_IVAR(UseXTerm) = 0;
DBG_IVAR(BreakOnDllLoad) = 0;
DBG_IVAR(ConChannelMask) = 0;
DBG_IVAR(StdChannelMask) = DBG_CHN_MESG;
argc--;
argv++;
continue;
}
if (!strcmp( argv[1], "--debugmsg" ) && argv[2])
{
wine_dbg_parse_options( argv[2] );
argc -= 2;
argv += 2;
continue;
}
DEBUG_Printf(DBG_CHN_MESG, "Usage: winedbg [--debugmsg dbgoptions] [--auto] cmdline\n" );
return 1;
}
DEBUG_InitConsole();
DEBUG_Printf(DBG_CHN_MESG, "WineDbg starting... ");
if (argc == 3) {
HANDLE hEvent;
DWORD pid;
if ((pid = atoi(argv[1])) != 0 && (hEvent = (HANDLE)atoi(argv[2])) != 0) {
if (!DEBUG_Attach(pid, TRUE)) {
/* don't care about result */
SetEvent(hEvent);
goto leave;
}
if (!SetEvent(hEvent)) {
DEBUG_Printf(DBG_CHN_ERR, "Invalid event handle: %p\n", hEvent);
goto leave;
}
CloseHandle(hEvent);
DEBUG_CurrPid = pid;
}
}
if (DEBUG_CurrPid == 0 && argc > 1) {
int i, len;
LPSTR cmdLine;
if (!(cmdLine = DBG_alloc(len = 1))) goto oom_leave;
cmdLine[0] = '\0';
for (i = 1; i < argc; i++) {
len += strlen(argv[i]) + 1;
if (!(cmdLine = DBG_realloc(cmdLine, len))) goto oom_leave;
strcat(cmdLine, argv[i]);
cmdLine[len - 2] = ' ';
cmdLine[len - 1] = '\0';
}
if (!DEBUG_Start(cmdLine)) {
DEBUG_Printf(DBG_CHN_MESG, "Couldn't start process '%s'\n", cmdLine);
goto leave;
}
DBG_free(DEBUG_LastCmdLine);
DEBUG_LastCmdLine = cmdLine;
}
if (automatic_mode)
{
retv = DEBUG_AutoMode();
/* don't save modified variables in auto mode */
}
else
{
retv = DEBUG_MainLoop();
/* saves modified variables */
DEBUG_IntVarsRW(FALSE);
}
leave:
return retv;
oom_leave:
DEBUG_Printf(DBG_CHN_MESG, "Out of memory\n");
goto leave;
}
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