mirror of
git://source.winehq.org/git/wine.git
synced 2024-10-31 11:43:31 +00:00
deca2502d6
unload a module (and it's debugging information), and a process
without pain
- portabiblity to another CPU should be easier now (CPU dependent backend)
- speed up memory allocation
- stabs related fixes:
+ now correctly handling symbol's size
+ blocks {} in functions are now correctly recognized and stored
(also applies to local variables scoping)
+ better basic types management (less wild guesses in the code)
+ full support of inline functions (source stepping now shows the
code in .h files for example)
- removal of external debugger (attaching with gdb is just fine to
debug winedbg)
- fixed a couple of issues for symbol address handling (address
lookup, incorrect type binding)
- winedbg now has a man page
370 lines
12 KiB
Groff
370 lines
12 KiB
Groff
.TH WINEDBG 1 "May 2004" "Wine Manpage" "Wine Developers Manual"
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.SH NAME
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winedbg \- Wine's debugger
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.SH SYNOPSIS
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.BR "winedbg " [ " --auto" " |"
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.BI "--gdb"
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.RI "[" " options " "] ] ["
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.BI "program name"
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.RI "["
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.BI "program arguments"
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.RI "] |"
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.BI "pid"
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.RI "]"
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.SH DESCRIPTION
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.B winedbg
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is a debugger for Wine. It allows:
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.RS 4
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+ debugging native Win32 applications
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.nf
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+ debugging Winelib applications.
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.nf
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+ being a drop-in replacement for Dr Watson
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.RE
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.PP
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.SH MODES
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\fBwinedbg\fR can be used in three modes. The first argument to the
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program determines the mode winedbg will run in.
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.IP \fBdefault\fR
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Without any explicit mode, this is standard \fBwinedbg\fR operating
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mode. \fBwinedbg\fR will act as the front end for the user.
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.IP \fB--auto\fR
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This mode is used when \fBwinedbg\fR is setup in \fIAeDebug\fR
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registry entry as the default debugger. \fBwinedbg will then will
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display basic information about a\fR crash. This is usefull for users
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who don't want to debug a crash, but rather gather relevant
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information about the crash to be sent to developers.
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.IP \fB--gdb\fR
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\fBwinedbg\fR will be used as a proxy for \fBgdb\fR. \fBgdb\fR will be
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the front end for command handling, and \fBwinedbg\fR will proxy all
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debugging requests from \fBgdb\fR to the Win32 APIs.
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.SH OPTIONS
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Only the \fBgdb\fR proxy mode allows some options:
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.PP
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.IP \fI--no-start\fR \fBgdb\fR will not be automatically
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started. Relevant information for starting \fBgdb\fR are printed on
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screen. This is somehow usefull when not directly using \fBgdb\fR but
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some graphical front-ends, like \fBddd\fR or \fBkgbd\fR.
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.IP \fI--with-xterm\fR
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This will run \fBgdb\fR in its own xterm instead of using the current
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Unix console for textual display.
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.PP
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The rest of the command line, when passed, is used to identify which
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programs, if any, has to debugged:
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.IP \fBprogram\ name\fR
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This is the name of an executable to start for a debugging
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session. \fBwinedbg\fR will actually create a process with this
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executable. If \fBprograms arguments\fR are also given, they will be
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used as arguments for creating the process to be debugged.
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.IP \fBpid\fR
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\fBgdb\fR will attach to the process which pid is \fBpid\fR (pids
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refer to Win32 pids, not Unix pids). Use the \fIinfo proc\fR
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\fBwinedbg\fR command to list running processes and their Win32 pids.
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.IP \fBdefaut\fR
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If nothing is specified, you will enter the debugger without any run
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nor attached process. You'll have to do the job yourself.
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.SH COMMANDS
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.SS Default mode:
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.PP
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Most of commands used in \fBwinedbg\fR are similar to the ones from
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\fBgdb\fR. Please refer to the \fBgdb\fR documentations for some more
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details. See the \fIgdb\ differences\fR section later on to get a list
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of variations from \fBgdb\fR commands.
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.PP
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\fIMisc. commands\fR
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.IP \fBabort\fR
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Aborts the debugger.
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.IP \fBquit\fR
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Exits the debugger.
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.IP \fBattach\ N\fR
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Attach to a Wine-process (\fBN\fR is its ID, numeric or hexadecimal).
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IDs can be obtained using the \fBinfo\ process\fR command. Note the
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\fBinfo\ process\fR command returns hexadecimal values
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.IP
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.IP \fBdetach\fR
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Detach from a Wine-process.
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.PP
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\fIHelp commands\fR
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.IP \fBhelp\fR
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Prints some help on the commands.
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.IP \fBhelp\ info\fR
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Prints some help on info commands
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.PP
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\fIFlow control commands\fR
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.IP \fBcont\fR
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Continue execution until next breakpoint or exception.
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.IP \fBpass\fR
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Pass the exception event up to the filter chain.
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.IP \fBstep\fR
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Continue execution until next C line of code (enters function call)
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.IP \fBnext\fR
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Continue execution until next C line of code (doesn't enter function
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call)
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.IP \fBstepi\fR
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Execute next assembly instruction (enters function call)
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.IP \fBnexti\fR
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Execute next assembly instruction (doesn't enter function call)
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.IP \fBfinish\fR
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Excute until return of current function is reached.
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.PP
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\fBcont\fR, \fBstep\fR, \fBnext\fR, \fBstepi\fR, \fBnexti\fR can be
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postfixed by a number (N), meaning that the command must be executed N
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times before control is returned to the user.
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.PP
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\fIBreakpoints, watchpoints
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.IP \fBenable\ N\fR
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Enables (break|watch)-point #\fBN\fR
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.IP \fBdisable\fR
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Disables (break|watch)-point \fB#N\fR
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.IP \fBdelete\fR
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Deletes (break|watch)-point #\fBN\fR
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.IP \fBcond\ N\fR
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Removes any existing condition to (break|watch)-point \fBN\fR
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.IP \fBcond\ N\ <expr>\fR
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Adds condition \fB<expr>\fR to (break|watch)-point
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#\fBN\fR. \fB<expr>\fR will be evaluated each time the
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(break|watch)-point is hit. If the result is a zero value, the
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breakpoint isn't triggered.
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.IP \fBbreak\ *\ N\fR
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Adds a breakpoint at address \fBN\fR
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.IP \fBbreak\ <id>\fR
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Adds a breakpoint at the address of symbol \fB<id>\fR
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.IP \fBbreak <id> N\fR
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Adds a breakpoint at the line \fBN\fR inside symbol \fB<id>\fR.
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.IP \fBbreak\ N\fR
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Adds a breakpoint at line \fBN\fR of current source file.
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.IP \fBbreak\fR
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Adds a breakpoint at current \f$PC\fR address.
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.IP \fBwatch\ *\ N\fR
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Adds a watch command (on write) at address \fBN\fR (on 4 bytes).
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.IP \fBwatch\ <id>\fR
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Adds a watch command (on write) at the address of symbol
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\fB<id>\fR. Size depends on size of \fB<id>\fR.
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.IP \fBinfo\ break\fR
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Lists all (break|watch)-points (with their state).
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.PP
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You can use the symbol \fBEntryPoint\fR to stand for the entry point of the Dll.
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.PP
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When setting a (break|watch)-point by \fB<id>\fR, if the symbol cannot
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be found (for example, the symbol is contained in a not yet loaded
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module), \fBwinedbg\fR will recall the name of the symbol and will try
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to set the breakpoint each time a new module is loaded (until it succeeds).
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.PP
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\fIStack manipulation\fR
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.IP \fBbt\fR
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Print calling stack of current thread.
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.IP \fBbt\ N\fR
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Print calling stack of thread of ID \fBN\fR. Note: this doesn't change
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the position of the current frame as manipulated by the \fBup\fR &
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\fBdn\fR commands).
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.IP \fBup\fR
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Goes up one frame in current thread's stack
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.IP \fBup\ N\fR
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Goes up \fBN\fR frames in current thread's stack
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.IP \fBdn\fR
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Goes down one frame in current thread's stack
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.IP \fBdn\ N\fR
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Goes down \fBN\fR frames in current thread's stack
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.IP \fBframe N\fR
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Sets \fBN\fR as the current frame for current thread's stack.
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.IP \fBinfo\ locals\fR
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Prints information on local variables for current function frame.
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.PP
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\fIDirectory & source file manipulation\fR
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.IP \fBshow\ dir\fR
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Prints the list of dir:s where source files are looked for.
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.IP \fBdir\ <pathname>\fR
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Adds \fB<pathname>\fR to the list of dir:s where to look for source
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files
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.IP \fBdir\fR
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Deletes the list of dir:s where to look for source files
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.IP \fBsymbolfile\ <pathname>\fR
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Loads external symbol definition symbolfile \fB<pathname>\fR
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.IP \fBsymbolfile\ <pathname>\ N\fR
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Loads external symbol definition symbolfile \fB<pathname>\fR (applying
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an offset of \fBN\fR to addresses)
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.IP \fBlist\fR
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Lists 10 source lines forwards from current position.
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.IP \fBlist\ -\fR
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Lists 10 source lines backwards from current position
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.IP \fBlist\ N\fR
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Lists 10 source lines from line #\fBN\fR in current file
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.IP \fBlist\ <pathname>:N\fR
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Lists 10 source lines from line #\fBN\fR in file \fB<pathname>\fR
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.IP \fBlist\ <id>\fR
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Lists 10 source lines of function \fB<id>\fR
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.IP \fBlist\ *\ N\fR
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Lists 10 source lines from address \fBN\fR
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.PP
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You can specify the end target (to change the 10 lines value) using
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the ',' separator. For example:
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.nf
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.IP \fBlist\ 123,\ 234\fR
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lists source lines from line 123 up to line 234 in current file
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.nf
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.IP \fBlist\ foo.c:1,56\fR
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lists source lines from line 1 up to 56 in file foo.c
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.PP
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\fIDisplaying\fR
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.PP
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A display is an expression that's evaluated and printed after the
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execution of any \fBwinedbg\fR's command.
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.IP \fBdisplay\fR
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.IP \fBinfo\ display\fR
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Lists the active displays
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.IP \fBdisplay\ <expr>\fR
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Adds a display for expression \f<expr>\fR
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.IP \fBdisplay\ /fmt\ <expr>\fR
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Adds a display for expression \fB<expr>\fR. Printing evaluated
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\fB<expr>\fR is done using the given format (see \fBprint\ command\fR
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for more on formats)
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.IP \fBdel\ display\ N\fR
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.IP \fBundisplay\ N\fR
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Deletes display #\fBN\fR
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.PP
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\fIDisassembly\fR
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.IP \fBdisas\fR
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Disassemble from current position
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.IP \fBdisas\ <expr>\fR
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Disassemble from address \fB<expr>\fR
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.IP \fBdisas\ <expr>,<expr>\fR
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Disassembles code between addresses specified by the two \fB<expr>\fR:s
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.PP
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\fIMemory\ (reading,\ writing,\ typing)\fR
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.IP \fBx\ <expr>\fR
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Examines memory at \fB<expr>\fR address
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.IP \fBx\ /fmt\ <expr>\fR
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Examines memory at \fB<expr>\fR address using format \fI/fmt\fR
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.IP \fBprint\ <expr>\fR
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Prints the value of \fB<expr>\fR (possibly using its type)
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.IP \fBprint\ /fmt\ <expr>\fR
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Prints the value of \fB<expr>\fR (possibly using its type)
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.IP \fBset\ <var>\ =\ <expr>\fR
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Writes the value of \fB<expr>\fR in \fB<var>\fR variable.
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.IP \fBwhatis\ <expr>\fR
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Prints the C type of expression \fB<expr>\fR
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.PP
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.IP \fI/fmt\fR
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is either \fI/<letter>\fR or \fI/<count><letter>\fR. \fI<letter>\fR
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can be:
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.RS 4
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.IP s
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an ASCII string
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.IP u
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an Unicode UTF16 string
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.IP i
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instructions (disassemble)
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.IP x
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32 bit unsigned hexadecimal integer
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.IP d
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32 bit signed decimal integer
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.IP w
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16 bit unsigned hexadecimal integer
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.IP c
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character (only printable 0x20-0x7f are actually printed)
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.IP b
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8 bit unsigned hexadecimal integer
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.IP g
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Win32 GUID
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.RE
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.PP
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\fIExpressions\fR
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.PP
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Expressions in Wine Debugger are mostly written in a C form. However,
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there are a few discrepancies:
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.PP
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.RS 4
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Identifiers can take a '!' in their names. This allows mainly to
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specify a module where to look the module from: \fIUSER32!CreateWindowExA\fR.
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.PP
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In cast operation, when specifying a structure or an union, you must
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use the struct or union key word (even if your program uses a typedef).
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.RE
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.PP
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When specifying an identifier \fB<id>\fR, if several symbols with
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this name exist, the debugger will prompt for the symbol you want to
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use. Pick up the one you want from its number.
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.PP
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\fIInformation on Wine's internals\fR
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.IP \fBinfo\ class\fR
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Lists all Windows' class registered in Wine
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.IP \fBinfo\ class\ <id>\fR
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Prints information on Windows's class \fB<id>\fR
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.IP \fBinfo\ share\fR
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Lists all the dynamic libraries loaded in the debugged program
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(including .so files, NE and PE DLLs)
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.IP \fBinfo\ share\ N\fR
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Prints information on module at address \fBN\fR
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.IP \fBinfo\ regs\fR
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Prints the value of the CPU registers
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.IP \fBinfo\ segment\fR
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Lists all allocated segments (i386 only)
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.IP \fBinfo\ segment N\fR
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Prints information on segment \fBN\fR (i386 only)
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.IP \fBinfo\ stack\fR
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Prints the values on top of the stack
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.IP \fBinfo\ map\fR
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Lists all virtual mappings used by the debugged program
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.IP \fBinfo\ map\ N\fR
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Lists all virtual mappings used by the program of pid \fBN\fR
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.IP \fBinfo\ wnd\fR
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Lists all the window hierarchy starting from the desktop window
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.IP \fBinfo\ wnd\ N\fR
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Prints information of Window of handle \fBN\fR
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.IP \fBinfo\ process\fR
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Lists all w-processes in Wine session
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.IP \fBinfo\ thread\fR
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Lists all w-threads in Wine session
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.IP \fBinfo\ exception\fR
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Lists the exception frames (starting from current stack frame)
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.PP
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It is possible to turn on and off Wine's debug messages as you are
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debugging using the \fBset\fR command.
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.IP \fBset\ +\ warn\ win\fR
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Turns on warn on \fB'win'\fR channel
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.IP \fBset\ +\ win\fR
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Turns on warn/fixme/err/trace on \fB'win'\fR channel
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.IP \fBset\ -\ win\fR
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Turns off warn/fixme/err/trace on \fB'win'\fR channel
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.IP \fBset\ -\ fixme\fR
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Turns off the 'fixme' class on all channels
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.PP
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.SS Gdb mode:
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.PP
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See the \fBgdb\fR documentation for all the \fBgdb\fR commands.
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.PP
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However, a few Wine's extension are available, through the
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\fBmonitor\fR command:
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.IP \fBmonitor\ wnd\fR
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Lists all window in the Wine session
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.IP \fBmonitor proc\fR
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Lists all processes in the Wine session
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.IP \fBmonitor mem \fR
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Displays memory mapping of debugged process
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.PP
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.SS Auto mode:
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.PP
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Since no user input is possible, no commands are available.
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.SH ENVIRONMENT
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.IP \fBWINE_GDB\fR
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When used in \fBgdb\fR proxy mode, \fBWINE_GDB\fR specifies the name
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(and the path) of the executable to be used for \fBgdb\fR. \fB"gdb"\fR
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is used by default.
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.SH FILES
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No specific files are used (yet).
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.SH BUGS
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A lot.
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.SH AUTHORS
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The first version was written by Eric Youngdale.
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.PP
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See Wine developer's list for the rest of contributors.
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.SH "SEE ALSO"
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.BR winedbg "'s README file"
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.nf
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The Winelib User Guide
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.nf
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The Wine Developers Guide
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