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git://source.winehq.org/git/wine.git
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383 lines
12 KiB
C
383 lines
12 KiB
C
/*
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* Win32 debugger functions
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*
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* Copyright (C) 1999 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <string.h>
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#include "winerror.h"
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#include "wine/winbase16.h"
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#include "wine/server.h"
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#include "ntstatus.h"
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#include "stackframe.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(debugstr);
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/******************************************************************************
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* WaitForDebugEvent (KERNEL32.@)
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*
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* Waits for a debugging event to occur in a process being debugged before
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* filling out the debug event structure.
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*
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* RETURNS
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*
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* Returns true if a debug event occurred and false if the call timed out.
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*/
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BOOL WINAPI WaitForDebugEvent(
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LPDEBUG_EVENT event, /* [out] Address of structure for event information. */
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DWORD timeout) /* [in] Number of milliseconds to wait for event. */
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{
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BOOL ret;
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DWORD res;
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for (;;)
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{
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HANDLE wait = 0;
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debug_event_t data;
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SERVER_START_REQ( wait_debug_event )
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{
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req->get_handle = (timeout != 0);
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wine_server_set_reply( req, &data, sizeof(data) );
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if (!(ret = !wine_server_call_err( req ))) goto done;
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if (!wine_server_reply_size(reply)) /* timeout */
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{
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wait = reply->wait;
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ret = FALSE;
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goto done;
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}
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event->dwDebugEventCode = data.code;
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event->dwProcessId = (DWORD)reply->pid;
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event->dwThreadId = (DWORD)reply->tid;
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switch(data.code)
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{
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case EXCEPTION_DEBUG_EVENT:
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event->u.Exception.ExceptionRecord = data.info.exception.record;
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event->u.Exception.dwFirstChance = data.info.exception.first;
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break;
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case CREATE_THREAD_DEBUG_EVENT:
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event->u.CreateThread.hThread = data.info.create_thread.handle;
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event->u.CreateThread.lpThreadLocalBase = data.info.create_thread.teb;
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event->u.CreateThread.lpStartAddress = data.info.create_thread.start;
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break;
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case CREATE_PROCESS_DEBUG_EVENT:
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event->u.CreateProcessInfo.hFile = data.info.create_process.file;
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event->u.CreateProcessInfo.hProcess = data.info.create_process.process;
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event->u.CreateProcessInfo.hThread = data.info.create_process.thread;
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event->u.CreateProcessInfo.lpBaseOfImage = data.info.create_process.base;
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event->u.CreateProcessInfo.dwDebugInfoFileOffset = data.info.create_process.dbg_offset;
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event->u.CreateProcessInfo.nDebugInfoSize = data.info.create_process.dbg_size;
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event->u.CreateProcessInfo.lpThreadLocalBase = data.info.create_process.teb;
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event->u.CreateProcessInfo.lpStartAddress = data.info.create_process.start;
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event->u.CreateProcessInfo.lpImageName = data.info.create_process.name;
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event->u.CreateProcessInfo.fUnicode = data.info.create_process.unicode;
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break;
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case EXIT_THREAD_DEBUG_EVENT:
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event->u.ExitThread.dwExitCode = data.info.exit.exit_code;
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break;
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case EXIT_PROCESS_DEBUG_EVENT:
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event->u.ExitProcess.dwExitCode = data.info.exit.exit_code;
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break;
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case LOAD_DLL_DEBUG_EVENT:
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event->u.LoadDll.hFile = data.info.load_dll.handle;
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event->u.LoadDll.lpBaseOfDll = data.info.load_dll.base;
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event->u.LoadDll.dwDebugInfoFileOffset = data.info.load_dll.dbg_offset;
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event->u.LoadDll.nDebugInfoSize = data.info.load_dll.dbg_size;
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event->u.LoadDll.lpImageName = data.info.load_dll.name;
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event->u.LoadDll.fUnicode = data.info.load_dll.unicode;
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break;
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case UNLOAD_DLL_DEBUG_EVENT:
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event->u.UnloadDll.lpBaseOfDll = data.info.unload_dll.base;
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break;
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case OUTPUT_DEBUG_STRING_EVENT:
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event->u.DebugString.lpDebugStringData = data.info.output_string.string;
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event->u.DebugString.fUnicode = data.info.output_string.unicode;
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event->u.DebugString.nDebugStringLength = data.info.output_string.length;
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break;
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case RIP_EVENT:
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event->u.RipInfo.dwError = data.info.rip_info.error;
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event->u.RipInfo.dwType = data.info.rip_info.type;
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break;
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}
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done:
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/* nothing */ ;
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}
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SERVER_END_REQ;
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if (ret) return TRUE;
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if (!wait) break;
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res = WaitForSingleObject( wait, timeout );
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CloseHandle( wait );
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if (res != STATUS_WAIT_0) break;
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}
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SetLastError( ERROR_SEM_TIMEOUT );
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return FALSE;
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}
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/**********************************************************************
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* ContinueDebugEvent (KERNEL32.@)
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*
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* Enables a thread that previously produced a debug event to continue.
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*
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* RETURNS
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*
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* True if the debugger is listed as the processes owner and the process
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* and thread are valid.
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*/
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BOOL WINAPI ContinueDebugEvent(
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DWORD pid, /* [in] The id of the process to continue. */
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DWORD tid, /* [in] The id of the thread to continue. */
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DWORD status) /* [in] The rule to apply to unhandled exeptions. */
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{
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BOOL ret;
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SERVER_START_REQ( continue_debug_event )
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{
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req->pid = pid;
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req->tid = tid;
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req->status = status;
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ret = !wine_server_call_err( req );
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}
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SERVER_END_REQ;
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return ret;
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}
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/**********************************************************************
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* DebugActiveProcess (KERNEL32.@)
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*
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* Attempts to attach the debugger to a process.
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*
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* RETURNS
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*
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* True if the debugger was attached to process.
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*/
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BOOL WINAPI DebugActiveProcess(
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DWORD pid) /* [in] The process to be debugged. */
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{
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BOOL ret;
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SERVER_START_REQ( debug_process )
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{
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req->pid = pid;
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req->attach = 1;
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ret = !wine_server_call_err( req );
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}
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SERVER_END_REQ;
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return ret;
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}
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/**********************************************************************
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* DebugActiveProcessStop (KERNEL32.@)
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*
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* Attempts to detach the debugger from a process.
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*
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* RETURNS
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*
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* True if the debugger was detached from the process.
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*/
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BOOL WINAPI DebugActiveProcessStop(
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DWORD pid) /* [in] The process to be detached. */
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{
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BOOL ret;
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SERVER_START_REQ( debug_process )
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{
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req->pid = pid;
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req->attach = 0;
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ret = !wine_server_call_err( req );
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* OutputDebugStringA (KERNEL32.@)
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*
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* Output by an application of a unicode string to a debugger (if attached)
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* and program log.
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*/
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void WINAPI OutputDebugStringA(
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LPCSTR str) /* [in] The message to be logged and given to the debugger. */
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{
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SERVER_START_REQ( output_debug_string )
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{
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req->string = (void *)str;
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req->unicode = 0;
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req->length = strlen(str) + 1;
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wine_server_call( req );
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}
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SERVER_END_REQ;
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WARN("%s\n", str);
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}
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/***********************************************************************
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* OutputDebugStringW (KERNEL32.@)
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*
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* Output by an appliccation of a unicode string to a debugger (if attached)
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* and program log.
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*/
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void WINAPI OutputDebugStringW(
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LPCWSTR str) /* [in] The message to be logged and given to the debugger. */
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{
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SERVER_START_REQ( output_debug_string )
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{
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req->string = (void *)str;
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req->unicode = 1;
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req->length = (lstrlenW(str) + 1) * sizeof(WCHAR);
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wine_server_call( req );
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}
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SERVER_END_REQ;
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WARN("%s\n", debugstr_w(str));
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}
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/***********************************************************************
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* OutputDebugString (KERNEL.115)
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*
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* Output by a 16 bit application of an ascii string to a debugger (if attached)
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* and program log.
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*/
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void WINAPI OutputDebugString16(
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LPCSTR str) /* [in] The message to be logged and given to the debugger. */
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{
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OutputDebugStringA( str );
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}
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/***********************************************************************
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* DebugBreak (KERNEL32.@)
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*
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* Raises an exception so that a debugger (if attached)
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* can take some action.
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*/
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void WINAPI DebugBreak(void)
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{
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DbgBreakPoint();
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}
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/***********************************************************************
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* DebugBreakProcess (KERNEL32.@)
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*
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* Raises an exception so that a debugger (if attached)
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* can take some action. Same as DebugBreak, but applies to any process.
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*/
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BOOL WINAPI DebugBreakProcess(HANDLE hProc)
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{
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BOOL ret, self;
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TRACE("(%p)\n", hProc);
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SERVER_START_REQ( debug_break )
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{
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req->handle = hProc;
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ret = !wine_server_call_err( req );
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self = ret && reply->self;
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}
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SERVER_END_REQ;
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if (self) DbgBreakPoint();
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return ret;
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}
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/***********************************************************************
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* DebugBreak (KERNEL.203)
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*
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* Raises an expection in a 16 bit application so that a debugger (if attached)
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* can take some action.
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*
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* BUGS
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*
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* Only 386 compatible processors implemented.
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*/
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void WINAPI DebugBreak16(
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CONTEXT86 *context) /* [in/out] A pointer to the 386 compatible processor state. */
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{
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#ifdef __i386__
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EXCEPTION_RECORD rec;
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rec.ExceptionCode = EXCEPTION_BREAKPOINT;
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rec.ExceptionFlags = 0;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = (LPVOID)context->Eip;
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rec.NumberParameters = 0;
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NtRaiseException( &rec, context, TRUE );
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#endif /* defined(__i386__) */
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}
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/***********************************************************************
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* IsDebuggerPresent (KERNEL32.@)
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*
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* Allows a process to determine if there is a debugger attached.
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*
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* RETURNS
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*
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* True if there is a debugger attached.
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*/
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BOOL WINAPI IsDebuggerPresent(void)
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{
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BOOL ret = FALSE;
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SERVER_START_REQ( get_process_info )
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{
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req->handle = GetCurrentProcess();
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if (!wine_server_call_err( req )) ret = reply->debugged;
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}
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SERVER_END_REQ;
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return ret;
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}
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/***********************************************************************
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* _DebugOutput (KERNEL.328)
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*/
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void WINAPIV _DebugOutput( WORD flags, LPCSTR spec, VA_LIST16 valist )
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{
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char caller[101];
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/* Decode caller address */
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if (!GetModuleName16( GetExePtr(CURRENT_STACK16->cs), caller, sizeof(caller) ))
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sprintf( caller, "%04X:%04X", CURRENT_STACK16->cs, CURRENT_STACK16->ip );
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/* FIXME: cannot use wvsnprintf16 from kernel */
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/* wvsnprintf16( temp, sizeof(temp), spec, valist ); */
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/* Output */
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FIXME("%s %04x %s\n", caller, flags, debugstr_a(spec) );
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}
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/***********************************************************************
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* DebugSetProcessKillOnExit (KERNEL32.@)
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*
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* Let a debugger decide wether a debuggee will be killed upon debugger
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* termination
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*/
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BOOL WINAPI DebugSetProcessKillOnExit(BOOL kill)
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{
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BOOL ret = FALSE;
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SERVER_START_REQ( set_debugger_kill_on_exit )
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{
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req->kill_on_exit = kill;
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ret = !wine_server_call_err( req );
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}
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SERVER_END_REQ;
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return ret;
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}
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