ReceiveTempSMS
/
Sweden-Number
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Added Get/SetThreadContext support through the server.

This commit is contained in:
Alexandre Julliard 2000-01-20 18:59:03 +00:00 committed by Alexandre Julliard
parent 681c75bf17
commit 3e2517caa7
10 changed files with 858 additions and 441 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

186
include/server.h
View File

@ -27,6 +27,86 @@
/* a path name for server requests (Unicode) */
typedef WCHAR path_t[MAX_PATH+1];
/* definitions of the event data depending on the event code */
struct debug_event_exception
{
int code; /* exception code */
int flags; /* exception flags */
void *record; /* exception record ptr */
void *addr; /* exception address */
int nb_params; /* exceptions parameters */
int params[15];
int first_chance; /* first chance to handle it? */
CONTEXT context; /* thread context */
};
struct debug_event_create_thread
{
int handle; /* handle to the new thread */
void *teb; /* thread teb (in debugged process address space) */
void *start; /* thread startup routine */
};
struct debug_event_create_process
{
int file; /* handle to the process exe file */
int process; /* handle to the new process */
int thread; /* handle to the new thread */
void *base; /* base of executable image */
int dbg_offset; /* offset of debug info in file */
int dbg_size; /* size of debug info */
void *teb; /* thread teb (in debugged process address space) */
void *start; /* thread startup routine */
void *name; /* image name (optional) */
int unicode; /* is it Unicode? */
};
struct debug_event_exit
{
int exit_code; /* thread or process exit code */
};
struct debug_event_load_dll
{
int handle; /* file handle for the dll */
void *base; /* base address of the dll */
int dbg_offset; /* offset of debug info in file */
int dbg_size; /* size of debug info */
void *name; /* image name (optional) */
int unicode; /* is it Unicode? */
};
struct debug_event_unload_dll
{
void *base; /* base address of the dll */
};
struct debug_event_output_string
{
void *string; /* string to display (in debugged process address space) */
int unicode; /* is it Unicode? */
int length; /* string length */
};
struct debug_event_rip_info
{
int error; /* ??? */
int type; /* ??? */
};
union debug_event_data
{
struct debug_event_exception exception;
struct debug_event_create_thread create_thread;
struct debug_event_create_process create_process;
struct debug_event_exit exit;
struct debug_event_load_dll load_dll;
struct debug_event_unload_dll unload_dll;
struct debug_event_output_string output_string;
struct debug_event_rip_info rip_info;
};
/* debug event data */
typedef struct
{
int code; /* event code */
union debug_event_data info; /* event information */
} debug_event_t;
/* Create a new process from the context of the parent */
struct new_process_request
{
@ -707,92 +787,18 @@ struct next_process_request
/* Wait for a debug event */
struct wait_debug_event_request
{
IN int timeout; /* timeout in ms */
OUT int code; /* event code */
OUT void* pid; /* process id */
OUT void* tid; /* thread id */
/* OUT union debug_event_data data; */
IN int timeout; /* timeout in ms */
OUT void* pid; /* process id */
OUT void* tid; /* thread id */
OUT debug_event_t event; /* debug event data */
};
/* Send a debug event */
struct send_debug_event_request
{
IN int code; /* event code */
OUT int status; /* event continuation status */
/* IN union debug_event_data data; */
};
/* definitions of the event data depending on the event code */
struct debug_event_exception
{
int code; /* exception code */
int flags; /* exception flags */
void *record; /* exception record ptr */
void *addr; /* exception address */
int nb_params; /* exceptions parameters */
int params[15];
int first_chance; /* first chance to handle it? */
CONTEXT context; /* thread context */
};
struct debug_event_create_thread
{
int handle; /* handle to the new thread */
void *teb; /* thread teb (in debugged process address space) */
void *start; /* thread startup routine */
};
struct debug_event_create_process
{
int file; /* handle to the process exe file */
int process; /* handle to the new process */
int thread; /* handle to the new thread */
void *base; /* base of executable image */
int dbg_offset; /* offset of debug info in file */
int dbg_size; /* size of debug info */
void *teb; /* thread teb (in debugged process address space) */
void *start; /* thread startup routine */
void *name; /* image name (optional) */
int unicode; /* is it Unicode? */
};
struct debug_event_exit
{
int exit_code; /* thread or process exit code */
};
struct debug_event_load_dll
{
int handle; /* file handle for the dll */
void *base; /* base address of the dll */
int dbg_offset; /* offset of debug info in file */
int dbg_size; /* size of debug info */
void *name; /* image name (optional) */
int unicode; /* is it Unicode? */
};
struct debug_event_unload_dll
{
void *base; /* base address of the dll */
};
struct debug_event_output_string
{
void *string; /* string to display (in debugged process address space) */
int unicode; /* is it Unicode? */
int length; /* string length */
};
struct debug_event_rip_info
{
int error; /* ??? */
int type; /* ??? */
};
union debug_event_data
{
struct debug_event_exception exception;
struct debug_event_create_thread create_thread;
struct debug_event_create_process create_process;
struct debug_event_exit exit;
struct debug_event_load_dll load_dll;
struct debug_event_unload_dll unload_dll;
struct debug_event_output_string output_string;
struct debug_event_rip_info rip_info;
OUT int status; /* event continuation status */
IN debug_event_t event; /* debug event data */
};
@ -1005,6 +1011,24 @@ struct cancel_timer_request
};
/* Retrieve the current context of a thread */
struct get_thread_context_request
{
IN int handle; /* thread handle */
IN unsigned int flags; /* context flags */
OUT CONTEXT context; /* thread context */
};
/* Set the current context of a thread */
struct set_thread_context_request
{
IN int handle; /* thread handle */
IN unsigned int flags; /* context flags */
IN CONTEXT context; /* thread context */
};
/* Everything below this line is generated automatically by tools/make_requests */
/* ### make_requests begin ### */
@ -1100,6 +1124,8 @@ enum request
REQ_OPEN_TIMER,
REQ_SET_TIMER,
REQ_CANCEL_TIMER,
REQ_GET_THREAD_CONTEXT,
REQ_SET_THREAD_CONTEXT,
REQ_NB_REQUESTS
};

213
scheduler/debugger.c
View File

@ -11,22 +11,7 @@
#include "server.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(debugstr)
/**********************************************************************
* DEBUG_SendEvent
*
* Internal helper to send a debug event request to the server.
*/
static DWORD DEBUG_SendEvent( int code, void *data, int size )
{
DWORD ret = 0;
struct send_debug_event_request *req = get_req_buffer();
req->code = code;
memcpy( req + 1, data, size );
if (!server_call( REQ_SEND_DEBUG_EVENT )) ret = req->status;
return ret;
}
DEFAULT_DEBUG_CHANNEL(debugstr);
/**********************************************************************
@ -39,21 +24,21 @@ DWORD DEBUG_SendExceptionEvent( EXCEPTION_RECORD *rec, BOOL first_chance, CONTEX
int i;
DWORD ret = 0;
struct send_debug_event_request *req = get_req_buffer();
struct debug_event_exception *event = (struct debug_event_exception *)(req + 1);
req->code = EXCEPTION_DEBUG_EVENT;
event->code = rec->ExceptionCode;
event->flags = rec->ExceptionFlags;
event->record = rec->ExceptionRecord;
event->addr = rec->ExceptionAddress;
event->nb_params = rec->NumberParameters;
for (i = 0; i < event->nb_params; i++) event->params[i] = rec->ExceptionInformation[i];
event->first_chance = first_chance;
event->context = *context;
req->event.code = EXCEPTION_DEBUG_EVENT;
req->event.info.exception.code = rec->ExceptionCode;
req->event.info.exception.flags = rec->ExceptionFlags;
req->event.info.exception.record = rec->ExceptionRecord;
req->event.info.exception.addr = rec->ExceptionAddress;
req->event.info.exception.nb_params = rec->NumberParameters;
req->event.info.exception.first_chance = first_chance;
req->event.info.exception.context = *context;
for (i = 0; i < req->event.info.exception.nb_params; i++)
req->event.info.exception.params[i] = rec->ExceptionInformation[i];
if (!server_call( REQ_SEND_DEBUG_EVENT ))
{
ret = req->status;
*context = event->context;
*context = req->event.info.exception.context;
}
return ret;
}
@ -67,22 +52,24 @@ DWORD DEBUG_SendExceptionEvent( EXCEPTION_RECORD *rec, BOOL first_chance, CONTEX
*/
DWORD DEBUG_SendCreateProcessEvent( HFILE file, HMODULE module, void *entry )
{
struct debug_event_create_process event;
DWORD ret = 0;
struct send_debug_event_request *req = get_req_buffer();
event.file = file;
event.process = 0; /* will be filled by server */
event.thread = 0; /* will be filled by server */
event.base = (void *)module;
event.dbg_offset = 0; /* FIXME */
event.dbg_size = 0; /* FIXME */
event.teb = NtCurrentTeb();
event.start = entry;
event.name = 0; /* FIXME */
event.unicode = 0; /* FIXME */
return DEBUG_SendEvent( CREATE_PROCESS_DEBUG_EVENT, &event, sizeof(event) );
req->event.code = CREATE_PROCESS_DEBUG_EVENT;
req->event.info.create_process.file = file;
req->event.info.create_process.process = 0; /* will be filled by server */
req->event.info.create_process.thread = 0; /* will be filled by server */
req->event.info.create_process.base = (void *)module;
req->event.info.create_process.dbg_offset = 0; /* FIXME */
req->event.info.create_process.dbg_size = 0; /* FIXME */
req->event.info.create_process.teb = NtCurrentTeb();
req->event.info.create_process.start = entry;
req->event.info.create_process.name = 0; /* FIXME */
req->event.info.create_process.unicode = 0; /* FIXME */
if (!server_call( REQ_SEND_DEBUG_EVENT )) ret = req->status;
return ret;
}
/**********************************************************************
* DEBUG_SendCreateThreadEvent
*
@ -91,12 +78,15 @@ DWORD DEBUG_SendCreateProcessEvent( HFILE file, HMODULE module, void *entry )
*/
DWORD DEBUG_SendCreateThreadEvent( void *entry )
{
struct debug_event_create_thread event;
DWORD ret = 0;
struct send_debug_event_request *req = get_req_buffer();
event.handle = 0; /* will be filled by server */
event.teb = NtCurrentTeb();
event.start = entry;
return DEBUG_SendEvent( CREATE_THREAD_DEBUG_EVENT, &event, sizeof(event) );
req->event.code = CREATE_THREAD_DEBUG_EVENT;
req->event.info.create_thread.handle = 0; /* will be filled by server */
req->event.info.create_thread.teb = NtCurrentTeb();
req->event.info.create_thread.start = entry;
if (!server_call( REQ_SEND_DEBUG_EVENT )) ret = req->status;
return ret;
}
@ -107,15 +97,18 @@ DWORD DEBUG_SendCreateThreadEvent( void *entry )
*/
DWORD DEBUG_SendLoadDLLEvent( HFILE file, HMODULE module, LPSTR *name )
{
struct debug_event_load_dll event;
DWORD ret = 0;
struct send_debug_event_request *req = get_req_buffer();
event.handle = file;
event.base = (void *)module;
event.dbg_offset = 0; /* FIXME */
event.dbg_size = 0; /* FIXME */
event.name = name;
event.unicode = 0;
return DEBUG_SendEvent( LOAD_DLL_DEBUG_EVENT, &event, sizeof(event) );
req->event.code = LOAD_DLL_DEBUG_EVENT;
req->event.info.load_dll.handle = file;
req->event.info.load_dll.base = (void *)module;
req->event.info.load_dll.dbg_offset = 0; /* FIXME */
req->event.info.load_dll.dbg_size = 0; /* FIXME */
req->event.info.load_dll.name = name;
req->event.info.load_dll.unicode = 0;
if (!server_call( REQ_SEND_DEBUG_EVENT )) ret = req->status;
return ret;
}
@ -126,10 +119,13 @@ DWORD DEBUG_SendLoadDLLEvent( HFILE file, HMODULE module, LPSTR *name )
*/
DWORD DEBUG_SendUnloadDLLEvent( HMODULE module )
{
struct debug_event_unload_dll event;
DWORD ret = 0;
struct send_debug_event_request *req = get_req_buffer();
event.base = (void *)module;
return DEBUG_SendEvent( UNLOAD_DLL_DEBUG_EVENT, &event, sizeof(event) );
req->event.code = UNLOAD_DLL_DEBUG_EVENT;
req->event.info.unload_dll.base = (void *)module;
if (!server_call( REQ_SEND_DEBUG_EVENT )) ret = req->status;
return ret;
}
@ -147,73 +143,72 @@ DWORD DEBUG_SendUnloadDLLEvent( HMODULE module )
BOOL WINAPI WaitForDebugEvent( LPDEBUG_EVENT event, DWORD timeout )
{
struct wait_debug_event_request *req = get_req_buffer();
union debug_event_data *data = (union debug_event_data *)(req + 1);
int i;
req->timeout = timeout;
if (server_call( REQ_WAIT_DEBUG_EVENT )) return FALSE;
if ((req->code < 0) || (req->code > RIP_EVENT))
server_protocol_error( "WaitForDebugEvent: bad code %d\n", req->code );
if ((req->event.code < 0) || (req->event.code > RIP_EVENT))
server_protocol_error( "WaitForDebugEvent: bad code %d\n", req->event.code );
event->dwDebugEventCode = req->code;
event->dwDebugEventCode = req->event.code;
event->dwProcessId = (DWORD)req->pid;
event->dwThreadId = (DWORD)req->tid;
switch(req->code)
switch(req->event.code)
{
case EXCEPTION_DEBUG_EVENT:
event->u.Exception.ExceptionRecord.ExceptionCode = data->exception.code;
event->u.Exception.ExceptionRecord.ExceptionFlags = data->exception.flags;
event->u.Exception.ExceptionRecord.ExceptionRecord = data->exception.record;
event->u.Exception.ExceptionRecord.ExceptionAddress = data->exception.addr;
event->u.Exception.ExceptionRecord.NumberParameters = data->exception.nb_params;
for (i = 0; i < data->exception.nb_params; i++)
event->u.Exception.ExceptionRecord.ExceptionInformation[i] = data->exception.params[i];
event->u.Exception.dwFirstChance = data->exception.first_chance;
event->u.Exception.ExceptionRecord.ExceptionCode = req->event.info.exception.code;
event->u.Exception.ExceptionRecord.ExceptionFlags = req->event.info.exception.flags;
event->u.Exception.ExceptionRecord.ExceptionRecord = req->event.info.exception.record;
event->u.Exception.ExceptionRecord.ExceptionAddress = req->event.info.exception.addr;
event->u.Exception.ExceptionRecord.NumberParameters = req->event.info.exception.nb_params;
for (i = 0; i < req->event.info.exception.nb_params; i++)
event->u.Exception.ExceptionRecord.ExceptionInformation[i] = req->event.info.exception.params[i];
event->u.Exception.dwFirstChance = req->event.info.exception.first_chance;
break;
case CREATE_THREAD_DEBUG_EVENT:
event->u.CreateThread.hThread = data->create_thread.handle;
event->u.CreateThread.lpThreadLocalBase = data->create_thread.teb;
event->u.CreateThread.lpStartAddress = data->create_thread.start;
event->u.CreateThread.hThread = req->event.info.create_thread.handle;
event->u.CreateThread.lpThreadLocalBase = req->event.info.create_thread.teb;
event->u.CreateThread.lpStartAddress = req->event.info.create_thread.start;
break;
case CREATE_PROCESS_DEBUG_EVENT:
event->u.CreateProcessInfo.hFile = data->create_process.file;
event->u.CreateProcessInfo.hProcess = data->create_process.process;
event->u.CreateProcessInfo.hThread = data->create_process.thread;
event->u.CreateProcessInfo.lpBaseOfImage = data->create_process.base;
event->u.CreateProcessInfo.dwDebugInfoFileOffset = data->create_process.dbg_offset;
event->u.CreateProcessInfo.nDebugInfoSize = data->create_process.dbg_size;
event->u.CreateProcessInfo.lpThreadLocalBase = data->create_process.teb;
event->u.CreateProcessInfo.lpStartAddress = data->create_process.start;
event->u.CreateProcessInfo.lpImageName = data->create_process.name;
event->u.CreateProcessInfo.fUnicode = data->create_process.unicode;
if (data->create_process.file == -1) event->u.CreateProcessInfo.hFile = 0;
event->u.CreateProcessInfo.hFile = req->event.info.create_process.file;
event->u.CreateProcessInfo.hProcess = req->event.info.create_process.process;
event->u.CreateProcessInfo.hThread = req->event.info.create_process.thread;
event->u.CreateProcessInfo.lpBaseOfImage = req->event.info.create_process.base;
event->u.CreateProcessInfo.dwDebugInfoFileOffset = req->event.info.create_process.dbg_offset;
event->u.CreateProcessInfo.nDebugInfoSize = req->event.info.create_process.dbg_size;
event->u.CreateProcessInfo.lpThreadLocalBase = req->event.info.create_process.teb;
event->u.CreateProcessInfo.lpStartAddress = req->event.info.create_process.start;
event->u.CreateProcessInfo.lpImageName = req->event.info.create_process.name;
event->u.CreateProcessInfo.fUnicode = req->event.info.create_process.unicode;
if (req->event.info.create_process.file == -1) event->u.CreateProcessInfo.hFile = 0;
break;
case EXIT_THREAD_DEBUG_EVENT:
event->u.ExitThread.dwExitCode = data->exit.exit_code;
event->u.ExitThread.dwExitCode = req->event.info.exit.exit_code;
break;
case EXIT_PROCESS_DEBUG_EVENT:
event->u.ExitProcess.dwExitCode = data->exit.exit_code;
event->u.ExitProcess.dwExitCode = req->event.info.exit.exit_code;
break;
case LOAD_DLL_DEBUG_EVENT:
event->u.LoadDll.hFile = data->load_dll.handle;
event->u.LoadDll.lpBaseOfDll = data->load_dll.base;
event->u.LoadDll.dwDebugInfoFileOffset = data->load_dll.dbg_offset;
event->u.LoadDll.nDebugInfoSize = data->load_dll.dbg_size;
event->u.LoadDll.lpImageName = data->load_dll.name;
event->u.LoadDll.fUnicode = data->load_dll.unicode;
if (data->load_dll.handle == -1) event->u.LoadDll.hFile = 0;
event->u.LoadDll.hFile = req->event.info.load_dll.handle;
event->u.LoadDll.lpBaseOfDll = req->event.info.load_dll.base;
event->u.LoadDll.dwDebugInfoFileOffset = req->event.info.load_dll.dbg_offset;
event->u.LoadDll.nDebugInfoSize = req->event.info.load_dll.dbg_size;
event->u.LoadDll.lpImageName = req->event.info.load_dll.name;
event->u.LoadDll.fUnicode = req->event.info.load_dll.unicode;
if (req->event.info.load_dll.handle == -1) event->u.LoadDll.hFile = 0;
break;
case UNLOAD_DLL_DEBUG_EVENT:
event->u.UnloadDll.lpBaseOfDll = data->unload_dll.base;
event->u.UnloadDll.lpBaseOfDll = req->event.info.unload_dll.base;
break;
case OUTPUT_DEBUG_STRING_EVENT:
event->u.DebugString.lpDebugStringData = data->output_string.string;
event->u.DebugString.fUnicode = data->output_string.unicode;
event->u.DebugString.nDebugStringLength = data->output_string.length;
event->u.DebugString.lpDebugStringData = req->event.info.output_string.string;
event->u.DebugString.fUnicode = req->event.info.output_string.unicode;
event->u.DebugString.nDebugStringLength = req->event.info.output_string.length;
break;
case RIP_EVENT:
event->u.RipInfo.dwError = data->rip_info.error;
event->u.RipInfo.dwType = data->rip_info.type;
event->u.RipInfo.dwError = req->event.info.rip_info.error;
event->u.RipInfo.dwType = req->event.info.rip_info.type;
break;
}
return TRUE;
@ -251,11 +246,12 @@ void WINAPI OutputDebugStringA( LPCSTR str )
{
if (PROCESS_Current()->flags & PDB32_DEBUGGED)
{
struct debug_event_output_string event;
event.string = (void *)str;
event.unicode = 0;
event.length = strlen(str) + 1;
DEBUG_SendEvent( OUTPUT_DEBUG_STRING_EVENT, &event, sizeof(event) );
struct send_debug_event_request *req = get_req_buffer();
req->event.code = OUTPUT_DEBUG_STRING_EVENT;
req->event.info.output_string.string = (void *)str;
req->event.info.output_string.unicode = 0;
req->event.info.output_string.length = strlen(str) + 1;
server_call( REQ_SEND_DEBUG_EVENT );
}
TRACE("%s\n", str);
@ -269,11 +265,12 @@ void WINAPI OutputDebugStringW( LPCWSTR str )
{
if (PROCESS_Current()->flags & PDB32_DEBUGGED)
{
struct debug_event_output_string event;
event.string = (void *)str;
event.unicode = 1;
event.length = (lstrlenW(str) + 1) * sizeof(WCHAR);
DEBUG_SendEvent( OUTPUT_DEBUG_STRING_EVENT, &event, sizeof(event) );
struct send_debug_event_request *req = get_req_buffer();
req->event.code = OUTPUT_DEBUG_STRING_EVENT;
req->event.info.output_string.string = (void *)str;
req->event.info.output_string.unicode = 1;
req->event.info.output_string.length = (lstrlenW(str) + 1) * sizeof(WCHAR);
server_call( REQ_SEND_DEBUG_EVENT );
}
TRACE("%s\n", debugstr_w(str));

39
scheduler/thread.c
View File

@ -516,14 +516,17 @@ BOOL WINAPI TlsSetValue(
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI SetThreadContext(
HANDLE handle, /* [in] Handle to thread with context */
const CONTEXT *context) /* [out] Address of context structure */
BOOL WINAPI SetThreadContext( HANDLE handle, /* [in] Handle to thread with context */
const CONTEXT *context ) /* [in] Address of context structure */
{
FIXME("not implemented\n" );
return TRUE;
struct set_thread_context_request *req = get_req_buffer();
req->handle = handle;
req->flags = context->ContextFlags;
memcpy( &req->context, context, sizeof(*context) );
return !server_call( REQ_SET_THREAD_CONTEXT );
}
/***********************************************************************
* GetThreadContext [KERNEL32.294] Retrieves context of thread.
*
@ -531,25 +534,15 @@ BOOL WINAPI SetThreadContext(
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI GetThreadContext(
HANDLE handle, /* [in] Handle to thread with context */
CONTEXT *context) /* [out] Address of context structure */
BOOL WINAPI GetThreadContext( HANDLE handle, /* [in] Handle to thread with context */
CONTEXT *context ) /* [out] Address of context structure */
{
#ifdef __i386__
WORD cs, ds;
FIXME("returning dummy info\n" );
/* make up some plausible values for segment registers */
GET_CS(cs);
GET_DS(ds);
context->SegCs = cs;
context->SegDs = ds;
context->SegEs = ds;
context->SegGs = ds;
context->SegSs = ds;
context->SegFs = ds;
#endif
struct get_thread_context_request *req = get_req_buffer();
req->handle = handle;
req->flags = context->ContextFlags;
memcpy( &req->context, context, sizeof(*context) );
if (server_call( REQ_GET_THREAD_CONTEXT )) return FALSE;
memcpy( context, &req->context, sizeof(*context) );
return TRUE;
}

1
server/Makefile.in
View File

@ -8,6 +8,7 @@ MODULE = server
C_SRCS = \
change.c \
console.c \
context_i386.c \
debugger.c \
device.c \
event.c \

264
server/context_i386.c Normal file
View File

@ -0,0 +1,264 @@
/*
* i386 register context support
*
* Copyright (C) 1999 Alexandre Julliard
*/
#include "config.h"
#ifdef __i386__
#include <assert.h>
#include <errno.h>
#include <sys/ptrace.h>
#include <sys/user.h>
#include "winbase.h"
#include "winerror.h"
#include "thread.h"
#include "request.h"
#ifndef PTRACE_PEEKUSER
#define PTRACE_PEEKUSER PT_READ_U
#endif
#ifndef PTRACE_POKEUSER
#define PTRACE_POKEUSER PT_WRITE_U
#endif
#ifndef PTRACE_GETREGS
#define PTRACE_GETREGS PT_GETREGS
#endif
#ifndef PTRACE_GETFPREGS
#define PTRACE_GETFPREGS PT_GETFPREGS
#endif
#ifdef linux
/* debug register offset in struct user */
#define DR_OFFSET(dr) ((int)((((struct user *)0)->u_debugreg) + (dr)))
/* retrieve a debug register */
static inline int get_debug_reg( int pid, int num, DWORD *data )
{
int res = ptrace( PTRACE_PEEKUSER, pid, DR_OFFSET(num), 0 );
if ((res == -1) && errno)
{
file_set_error();
return -1;
}
*data = res;
return 0;
}
/* retrieve a thread context */
static void get_thread_context( struct thread *thread, unsigned int flags, CONTEXT *context )
{
int pid = thread->unix_pid;
if (flags & CONTEXT_FULL)
{
struct user_regs_struct regs;
if (ptrace( PTRACE_GETREGS, pid, 0, &regs ) == -1) goto error;
if (flags & CONTEXT_INTEGER)
{
context->Eax = regs.eax;
context->Ebx = regs.ebx;
context->Ecx = regs.ecx;
context->Edx = regs.edx;
context->Esi = regs.esi;
context->Edi = regs.edi;
}
if (flags & CONTEXT_CONTROL)
{
context->Ebp = regs.ebp;
context->Esp = regs.esp;
context->Eip = regs.eip;
context->SegCs = regs.xcs & 0xffff;
context->SegSs = regs.xss & 0xffff;
context->EFlags = regs.eflags;
}
if (flags & CONTEXT_SEGMENTS)
{
context->SegDs = regs.xds & 0xffff;
context->SegEs = regs.xes & 0xffff;
context->SegFs = regs.xfs & 0xffff;
context->SegGs = regs.xgs & 0xffff;
}
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
if (get_debug_reg( pid, 0, &context->Dr0 ) == -1) goto error;
if (get_debug_reg( pid, 1, &context->Dr1 ) == -1) goto error;
if (get_debug_reg( pid, 2, &context->Dr2 ) == -1) goto error;
if (get_debug_reg( pid, 3, &context->Dr3 ) == -1) goto error;
if (get_debug_reg( pid, 6, &context->Dr6 ) == -1) goto error;
if (get_debug_reg( pid, 7, &context->Dr7 ) == -1) goto error;
}
if (flags & CONTEXT_FLOATING_POINT)
{
/* we can use context->FloatSave directly as it is using the */
/* correct structure (the same as fsave/frstor) */
if (ptrace( PTRACE_GETFPREGS, pid, 0, &context->FloatSave ) == -1) goto error;
context->FloatSave.Cr0NpxState = 0; /* FIXME */
}
return;
error:
file_set_error();
}
/* set a thread context */
static void set_thread_context( struct thread *thread, unsigned int flags, CONTEXT *context )
{
int pid = thread->unix_pid;
if (flags & CONTEXT_FULL)
{
struct user_regs_struct regs;
if ((flags & CONTEXT_FULL) != CONTEXT_FULL) /* need to preserve some registers */
{
if (ptrace( PTRACE_GETREGS, pid, 0, &regs ) == -1) goto error;
}
if (flags & CONTEXT_INTEGER)
{
regs.eax = context->Eax;
regs.ebx = context->Ebx;
regs.ecx = context->Ecx;
regs.edx = context->Edx;
regs.esi = context->Esi;
regs.edi = context->Edi;
}
if (flags & CONTEXT_CONTROL)
{
regs.ebp = context->Ebp;
regs.esp = context->Esp;
regs.eip = context->Eip;
regs.xcs = context->SegCs;
regs.xss = context->SegSs;
regs.eflags = context->EFlags;
}
if (flags & CONTEXT_SEGMENTS)
{
regs.xds = context->SegDs;
regs.xes = context->SegEs;
regs.xfs = context->SegFs;
regs.xgs = context->SegGs;
}
if (ptrace( PTRACE_SETREGS, pid, 0, &regs ) == -1) goto error;
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
if (ptrace( PTRACE_POKEUSER, pid, DR_OFFSET(0), context->Dr0 ) == -1) goto error;
if (ptrace( PTRACE_POKEUSER, pid, DR_OFFSET(1), context->Dr1 ) == -1) goto error;
if (ptrace( PTRACE_POKEUSER, pid, DR_OFFSET(2), context->Dr2 ) == -1) goto error;
if (ptrace( PTRACE_POKEUSER, pid, DR_OFFSET(3), context->Dr3 ) == -1) goto error;
if (ptrace( PTRACE_POKEUSER, pid, DR_OFFSET(6), context->Dr6 ) == -1) goto error;
if (ptrace( PTRACE_POKEUSER, pid, DR_OFFSET(7), context->Dr7 ) == -1) goto error;
}
if (flags & CONTEXT_FLOATING_POINT)
{
/* we can use context->FloatSave directly as it is using the */
/* correct structure (the same as fsave/frstor) */
if (ptrace( PTRACE_SETFPREGS, pid, 0, &context->FloatSave ) == -1) goto error;
context->FloatSave.Cr0NpxState = 0; /* FIXME */
}
return;
error:
file_set_error();
}
#else /* linux */
#error You must implement get/set_thread_context for your platform
#endif /* linux */
/* copy a context structure according to the flags */
static void copy_context( CONTEXT *to, CONTEXT *from, int flags )
{
if (flags & CONTEXT_CONTROL)
{
to->Ebp = from->Ebp;
to->Eip = from->Eip;
to->Esp = from->Esp;
to->SegCs = from->SegCs;
to->SegSs = from->SegSs;
to->EFlags = from->EFlags;
}
if (flags & CONTEXT_INTEGER)
{
to->Eax = from->Eax;
to->Ebx = from->Ebx;
to->Ecx = from->Ecx;
to->Edx = from->Edx;
to->Esi = from->Esi;
to->Edi = from->Edi;
}
if (flags & CONTEXT_SEGMENTS)
{
to->SegDs = from->SegDs;
to->SegEs = from->SegEs;
to->SegFs = from->SegFs;
to->SegGs = from->SegGs;
}
if (flags & CONTEXT_DEBUG_REGISTERS)
{
to->Dr0 = from->Dr0;
to->Dr1 = from->Dr1;
to->Dr2 = from->Dr2;
to->Dr3 = from->Dr3;
to->Dr6 = from->Dr6;
to->Dr7 = from->Dr7;
}
if (flags & CONTEXT_FLOATING_POINT)
{
to->FloatSave = from->FloatSave;
}
}
/* retrieve the current context of a thread */
DECL_HANDLER(get_thread_context)
{
struct thread *thread;
CONTEXT *context;
if ((thread = get_thread_from_handle( req->handle, THREAD_GET_CONTEXT )))
{
if ((context = get_debug_context( thread ))) /* thread is inside an exception event */
{
copy_context( &req->context, context, req->flags );
}
else
{
suspend_thread( thread, 0 );
if (thread->attached) get_thread_context( thread, req->flags, &req->context );
else set_error( ERROR_ACCESS_DENIED );
resume_thread( thread );
}
release_object( thread );
}
}
/* set the current context of a thread */
DECL_HANDLER(set_thread_context)
{
struct thread *thread;
CONTEXT *context;
if ((thread = get_thread_from_handle( req->handle, THREAD_SET_CONTEXT )))
{
if ((context = get_debug_context( thread ))) /* thread is inside an exception event */
{
copy_context( context, &req->context, req->flags );
}
else
{
suspend_thread( thread, 0 );
if (thread->attached) set_thread_context( thread, req->flags, &req->context );
else set_error( ERROR_ACCESS_DENIED );
resume_thread( thread );
}
release_object( thread );
}
}
#endif /* __i386__ */

114
server/debugger.c
View File

@ -28,8 +28,7 @@ struct debug_event
struct thread *debugger; /* debugger thread receiving the event */
enum debug_event_state state; /* event state */
int status; /* continuation status */
int code; /* event code */
union debug_event_data data; /* event data */
debug_event_t data; /* event data */
};
/* debug context */
@ -84,21 +83,6 @@ static const struct object_ops debug_ctx_ops =
debug_ctx_destroy /* destroy */
};
/* size of the event data */
static const int event_sizes[] =
{
0,
sizeof(struct debug_event_exception), /* EXCEPTION_DEBUG_EVENT */
sizeof(struct debug_event_create_thread), /* CREATE_THREAD_DEBUG_EVENT */
sizeof(struct debug_event_create_process), /* CREATE_PROCESS_DEBUG_EVENT */
sizeof(struct debug_event_exit), /* EXIT_THREAD_DEBUG_EVENT */
sizeof(struct debug_event_exit), /* EXIT_PROCESS_DEBUG_EVENT */
sizeof(struct debug_event_load_dll), /* LOAD_DLL_DEBUG_EVENT */
sizeof(struct debug_event_unload_dll), /* UNLOAD_DLL_DEBUG_EVENT */
sizeof(struct debug_event_output_string), /* OUTPUT_DEBUG_STRING_EVENT */
sizeof(struct debug_event_rip_info) /* RIP_EVENT */
};
/* initialise the fields that do not need to be filled by the client */
static int fill_debug_event( struct thread *debugger, struct thread *thread,
@ -107,45 +91,45 @@ static int fill_debug_event( struct thread *debugger, struct thread *thread,
int handle;
/* some events need special handling */
switch(event->code)
switch(event->data.code)
{
case CREATE_THREAD_DEBUG_EVENT:
if ((event->data.create_thread.handle = alloc_handle( debugger->process, thread,
if ((event->data.info.create_thread.handle = alloc_handle( debugger->process, thread,
/* documented: THREAD_GET_CONTEXT | THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME */
THREAD_ALL_ACCESS, FALSE )) == -1)
return 0;
break;
case CREATE_PROCESS_DEBUG_EVENT:
if ((handle = event->data.create_process.file) != -1)
if ((handle = event->data.info.create_process.file) != -1)
{
if ((handle = duplicate_handle( thread->process, handle, debugger->process,
GENERIC_READ, FALSE, 0 )) == -1)
return 0;
event->data.create_process.file = handle;
event->data.info.create_process.file = handle;
}
if ((event->data.create_process.process = alloc_handle( debugger->process, thread->process,
if ((event->data.info.create_process.process = alloc_handle( debugger->process, thread->process,
/* documented: PROCESS_VM_READ | PROCESS_VM_WRITE */
PROCESS_ALL_ACCESS, FALSE )) == -1)
{
if (handle != -1) close_handle( debugger->process, handle );
return 0;
}
if ((event->data.create_process.thread = alloc_handle( debugger->process, thread,
if ((event->data.info.create_process.thread = alloc_handle( debugger->process, thread,
/* documented: THREAD_GET_CONTEXT | THREAD_SET_CONTEXT | THREAD_SUSPEND_RESUME */
THREAD_ALL_ACCESS, FALSE )) == -1)
{
if (handle != -1) close_handle( debugger->process, handle );
close_handle( debugger->process, event->data.create_process.process );
close_handle( debugger->process, event->data.info.create_process.process );
return 0;
}
break;
case LOAD_DLL_DEBUG_EVENT:
if ((handle = event->data.load_dll.handle) != -1)
if ((handle = event->data.info.load_dll.handle) != -1)
{
if ((handle = duplicate_handle( thread->process, handle, debugger->process,
GENERIC_READ, FALSE, 0 )) == -1)
return 0;
event->data.load_dll.handle = handle;
event->data.info.load_dll.handle = handle;
}
break;
}
@ -196,14 +180,14 @@ static void build_wait_debug_reply( struct thread *thread, struct object *obj, i
event->state = EVENT_SENT;
debug_ctx->to_send = event->next;
req->code = event->code;
req->event.code = event->data.code;
req->pid = event->sender->process;
req->tid = event->sender;
memcpy( req + 1, &event->data, event_sizes[event->code] );
memcpy( &req->event, &event->data, sizeof(req->event) );
}
else /* timeout or error */
{
req->code = 0;
req->event.code = 0;
req->pid = 0;
req->tid = 0;
thread->error = signaled;
@ -219,8 +203,10 @@ static void build_send_event_reply( struct thread *thread, struct object *obj, i
req->status = event->status;
/* copy the context into the reply */
if (event->code == EXCEPTION_DEBUG_EVENT)
memcpy( req + 1, &event->data, event_sizes[event->code] );
if (event->data.code == EXCEPTION_DEBUG_EVENT)
memcpy( &req->event.info.exception.context,
&event->data.info.exception.context,
sizeof(req->event.info.exception.context) );
}
static void debug_event_dump( struct object *obj, int verbose )
@ -228,7 +214,7 @@ static void debug_event_dump( struct object *obj, int verbose )
struct debug_event *debug_event = (struct debug_event *)obj;
assert( obj->ops == &debug_event_ops );
fprintf( stderr, "Debug event sender=%p code=%d state=%d\n",
debug_event->sender, debug_event->code, debug_event->state );
debug_event->sender, debug_event->data.code, debug_event->state );
}
static int debug_event_signaled( struct object *obj, struct thread *thread )
@ -252,20 +238,20 @@ static void debug_event_destroy( struct object *obj )
if (event->state == EVENT_QUEUED)
{
struct process *debugger = event->debugger->process;
switch(event->code)
switch(event->data.code)
{
case CREATE_THREAD_DEBUG_EVENT:
close_handle( debugger, event->data.create_thread.handle );
close_handle( debugger, event->data.info.create_thread.handle );
break;
case CREATE_PROCESS_DEBUG_EVENT:
if (event->data.create_process.file != -1)
close_handle( debugger, event->data.create_process.file );
close_handle( debugger, event->data.create_process.thread );
close_handle( debugger, event->data.create_process.process );
if (event->data.info.create_process.file != -1)
close_handle( debugger, event->data.info.create_process.file );
close_handle( debugger, event->data.info.create_process.thread );
close_handle( debugger, event->data.info.create_process.process );
break;
case LOAD_DLL_DEBUG_EVENT:
if (event->data.load_dll.handle != -1)
close_handle( debugger, event->data.load_dll.handle );
if (event->data.info.load_dll.handle != -1)
close_handle( debugger, event->data.info.load_dll.handle );
break;
}
}
@ -346,7 +332,7 @@ static int continue_debug_event( struct process *process, struct thread *thread,
/* queue a debug event for a debugger */
static struct debug_event *queue_debug_event( struct thread *debugger, struct thread *thread,
int code, void *data )
debug_event_t *data )
{
struct debug_ctx *debug_ctx = debugger->debug_ctx;
struct debug_event *event;
@ -360,14 +346,13 @@ static struct debug_event *queue_debug_event( struct thread *debugger, struct th
event->next = NULL;
event->prev = NULL;
event->state = EVENT_QUEUED;
event->code = code;
event->sender = (struct thread *)grab_object( thread );
event->debugger = (struct thread *)grab_object( debugger );
memcpy( &event->data, data, event_sizes[code] );
memcpy( &event->data, data, sizeof(event->data) );
if (!fill_debug_event( debugger, thread, event ))
{
event->code = -1; /* make sure we don't attempt to close handles */
event->data.code = -1; /* make sure we don't attempt to close handles */
release_object( event );
return NULL;
}
@ -377,6 +362,22 @@ static struct debug_event *queue_debug_event( struct thread *debugger, struct th
return event;
}
/* return a pointer to the context in case the thread is inside an exception event */
CONTEXT *get_debug_context( struct thread *thread )
{
struct debug_event *event;
struct thread *debugger = thread->process->debugger;
if (!debugger) return NULL; /* not being debugged */
assert( debugger->debug_ctx );
/* find the exception event in the debugger's queue */
for (event = debugger->debug_ctx->event_head; event; event = event->next)
if (event->sender == thread && (event->data.code == EXCEPTION_DEBUG_EVENT))
return &event->data.info.exception.context;
return NULL;
}
/* attach a process to a debugger thread */
int debugger_attach( struct process *process, struct thread *debugger )
{
@ -417,13 +418,12 @@ void debug_exit_thread( struct thread *thread, int exit_code )
if (debugger) /* being debugged -> send an event to the debugger */
{
struct debug_event *event;
struct debug_event_exit exit;
exit.exit_code = exit_code;
if (thread->process->running_threads == 1)
/* this is the last thread, send an exit process event */
event = queue_debug_event( debugger, thread, EXIT_PROCESS_DEBUG_EVENT, &exit );
else
event = queue_debug_event( debugger, thread, EXIT_THREAD_DEBUG_EVENT, &exit );
debug_event_t exit;
exit.info.exit.exit_code = exit_code;
/* if this is the last thread, send an exit process event */
exit.code = ((thread->process->running_threads == 1) ?
EXIT_PROCESS_DEBUG_EVENT : EXIT_THREAD_DEBUG_EVENT);
event = queue_debug_event( debugger, thread, &exit );
if (event) release_object( event );
}
@ -441,9 +441,9 @@ DECL_HANDLER(wait_debug_event)
{
if (!wait_for_debug_event( req->timeout ))
{
req->code = 0;
req->pid = NULL;
req->tid = NULL;
req->event.code = 0;
req->pid = NULL;
req->tid = NULL;
}
}
@ -481,13 +481,13 @@ DECL_HANDLER(send_debug_event)
struct thread *debugger = current->process->debugger;
struct debug_event *event;
if ((req->code <= 0) || (req->code > RIP_EVENT))
if ((req->event.code <= 0) || (req->event.code > RIP_EVENT))
{
fatal_protocol_error( current, "send_debug_event: bad code %d\n", req->code );
fatal_protocol_error( current, "send_debug_event: bad code %d\n", req->event.code );
return;
}
req->status = 0;
if (debugger && ((event = queue_debug_event( debugger, current, req->code, req + 1 ))))
if (debugger && ((event = queue_debug_event( debugger, current, &req->event ))))
{
/* wait for continue_debug_event */
struct object *obj = &event->obj;

1
server/object.h
View File

@ -155,6 +155,7 @@ extern int free_console( struct process *process );
extern int debugger_attach( struct process *process, struct thread *debugger );
extern void debug_exit_thread( struct thread *thread, int exit_code );
extern CONTEXT *get_debug_context( struct thread *thread );
/* mapping functions */

4
server/request.h
View File

@ -157,6 +157,8 @@ DECL_HANDLER(create_timer);
DECL_HANDLER(open_timer);
DECL_HANDLER(set_timer);
DECL_HANDLER(cancel_timer);
DECL_HANDLER(get_thread_context);
DECL_HANDLER(set_thread_context);
#ifdef WANT_REQUEST_HANDLERS
@ -254,6 +256,8 @@ static const struct handler {
{ (void(*)())req_open_timer, sizeof(struct open_timer_request) },
{ (void(*)())req_set_timer, sizeof(struct set_timer_request) },
{ (void(*)())req_cancel_timer, sizeof(struct cancel_timer_request) },
{ (void(*)())req_get_thread_context, sizeof(struct get_thread_context_request) },
{ (void(*)())req_set_thread_context, sizeof(struct set_thread_context_request) },
};
#endif /* WANT_REQUEST_HANDLERS */

452
server/trace.c
View File

File diff suppressed because it is too large Load Diff

25
tools/make_requests
View File

@ -8,15 +8,17 @@
%formats =
(
"int" => "%d",
"long" => "%ld",
"char" => "%c",
"unsigned int" => "%08x",
"void*" => "%p",
"time_t" => "%ld",
"path_t" => "&dump_unicode_string",
"char[1]" => "\\\"%s\\\"",
"WCHAR[1]" => "&dump_unicode_string"
"int" => "%d",
"long" => "%ld",
"char" => "%c",
"unsigned int" => "%08x",
"void*" => "%p",
"time_t" => "%ld",
"path_t" => "&dump_path_t",
"debug_event_t" => "&dump_debug_event_t",
"CONTEXT" => "&dump_context",
"char[1]" => "\\\"%s\\\"",
"WCHAR[1]" => "&dump_unicode_string"
);
my @requests = ();
@ -123,7 +125,7 @@ sub DO_DUMP_FUNC
{
my $name = shift;
my $req = shift;
push @trace_lines, "static void dump_${name}_$req( struct ${name}_request *req )\n{\n";
push @trace_lines, "static void dump_${name}_$req( const struct ${name}_request *req )\n{\n";
while ($#_ >= 0)
{
my $type = shift;
@ -134,7 +136,8 @@ sub DO_DUMP_FUNC
{
my $func = $1;
push @trace_lines, " fprintf( stderr, \" $var=\" );\n";
push @trace_lines, " $func( req->$var );\n";
if ($type =~ /[1]/) { push @trace_lines, " $func( req->$var );\n"; }
else { push @trace_lines, " $func( &req->$var );\n"; }
push @trace_lines, " fprintf( stderr, \",\" );\n" if ($#_ > 0);
}
else