winedbg's doc
Eric Pouech
eric.pouech at wanadoo.fr
Fri Sep 20 15:13:08 CDT 2002
this patch updates the winedbg documentation
A+
-------------- next part --------------
Name: doc_winedbg
ChangeLog: updated winedbg documentation
License: X11
GenDate: 2002/09/20 20:11:58 UTC
ModifiedFiles: documentation/debugger.sgml
AddedFiles:
===================================================================
RCS file: /home/cvs/cvsroot/wine/wine/documentation/debugger.sgml,v
retrieving revision 1.11
diff -u -u -r1.11 debugger.sgml
--- documentation/debugger.sgml 3 Jul 2002 01:20:46 -0000 1.11
+++ documentation/debugger.sgml 19 Sep 2002 19:21:44 -0000
@@ -6,7 +6,7 @@
<para>
Written by &name-eric-pouech; <email>&email-eric-pouech;</email>
- (Last updated: 6/14/2000)
+ (Last updated: 9/15/2002)
</para>
<para>
(Extracted from <filename>wine/documentation/winedbg</filename>)
@@ -98,7 +98,7 @@
</itemizedlist>
<para>
Wine implements most of the Windows' debugging API (the
- part in KERNEL32, not the one in
+ part in <filename>KERNEL32.DLL</filename>, not the one in
<filename>IMAGEHLP.DLL</filename>), and allows any program
(emulated or Winelib) using that API to debug a
<varname>W-process</varname>.
@@ -153,7 +153,7 @@
</sect2>
<sect2 id="dbg-on-exception">
- <title id="dbg-exception-title">On exception</title>
+ <title id="dbg-exception-title">On exceptions</title>
<para>
When something goes wrong, Windows tracks this as an
@@ -232,16 +232,26 @@
</note>
</sect2>
+ <sect2 id="interrupt">
+ <title>Interrupting</title>
+
+ <para>
+ You can stop the debugger while it's running by hitting
+ Ctrl-C in its window. This will stop the debugged process,
+ and let you manipulate the current context
+ </para>
+ </sect2>
+
<sect2>
<title>Quitting</title>
<para>
- Unfortunately, Windows doesn't provide a detach kind of API,
- meaning that once you started debugging a process, you must
- do so until the process dies. Killing (or stopping/aborting)
- the debugger will also kill the debugged process. This will
- be true for any Windows' debugging API compliant debugger,
- starting with <command>WineDbg</command>.
+ Wine supports the new XP APIs, allowing for a debugger to
+ detach from a program being debugged (see
+ <command>detach</command> command). Unfortunately, as the
+ debugger cannot, for now, neither clear its internal
+ information, nor restart a new process, the debugger, after
+ detaching itself, cannot do much except being quited.
</para>
</sect2>
</sect1>
@@ -797,6 +807,17 @@
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <application>winedump</application>:
+ </term>
+ <listitem>
+ <para>
+ Dumps the imports and exports of a PE (Portable
+ Executable) DLL (included in wine tree).
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
</listitem>
</itemizedlist>
@@ -831,8 +852,8 @@
info reg (to see registers)
info stack (to see hex values in the stack)
info local (to see local variables)
- list <line number> (to list source code)
- x <variable name> (to examine a variable; only works if code
+ list <line number> (to list source code)
+ x <variable name> (to examine a variable; only works if code
is not compiled with optimization)
x 0x4269978 (to examine a memory location)
? (help)
@@ -1354,6 +1375,10 @@
You can use the symbol <emphasis>EntryPoint</emphasis> to stand for
the entry point of the Dll.
</para>
+ <para>
+ When setting a break/watch-point by <id>, if the symbol cannot be found (for example, the symbol is contained in a not yet loaded module), winedbg will
+ recall the name of the symbol and will try to set the breakpoint each time a new module is loaded (until it succeeds).
+ </para>
</sect2>
<sect2>
@@ -1381,7 +1406,9 @@
show dir
dir <pathname>
dir
-symbolfile <module> <pathname>
+symbolfile <pathname> loads external symbol definition
+symbolfile <pathname> N loads external symbol definition
+ (applying an offset of N to addresses)
</screen>
<screen>
list lists 10 source lines from current position
@@ -1459,6 +1486,8 @@
walk process lists all w-processes in Wine session
walk thread lists all w-threads in Wine session
walk modref (no longer avail)
+walk exception lists the exception frames (starting from current
+ stack frame)
</screen>
</sect2>
@@ -1485,9 +1514,9 @@
x => 32 bit unsigned hexadecimal integer
d => 32 bit signed decimal integer
w => 16 bit unsigned hexadecimal integer
-c => character (only printable 0x20-0x7f are actually
- printed)
+c => character (only printable 0x20-0x7f are actuallyprinted)
b => 8 bit unsigned hexadecimal integer
+g => GUID
</screen>
</sect2>
@@ -1500,8 +1529,9 @@
<itemizedlist>
<listitem>
<para>
- Identifiers can take a '.' in their names. This allow mainly to access symbols
- from different DLLs like USER32.DLL.CreateWindowA
+ Identifiers can take a '.' in their names. This allow
+ mainly to access symbols from different DLLs like
+ <function>USER32.DLL.CreateWindowA</function>.
</para>
</listitem>
<listitem>
@@ -1515,7 +1545,7 @@
</para>
</sect2>
<sect2>
- <title>debug messages</title>
+ <title>Debug channels</title>
<para>
It is possible to turn on and off debug messages as you are debuging using
the set command.
@@ -1534,6 +1564,49 @@
<title>Other debuggers</title>
<sect2>
+ <title>GDB mode</title>
+
+ <para>
+ WineDbg can act as a remote monitor for GDB. This allows to
+ use all the power of GDB, but while debugging wine and/or
+ any Win32 application. To enable this mode, just add
+ <parameter>--gdb</parameter> to winedbg command line. You'll
+ end up on a GDB prompt. You'll have to use the GDB commands
+ (not the wine nes).
+ </para>
+
+ <para>
+ However, some limitation in GDB while debugging wine (see
+ below) don't ppear in this mode:
+ <itemizedlist>
+ <listitem>
+ <para>
+ GDB will correctly present Win32 thread
+ information and breakpoint behavior
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Moreover, it also provides support for the Dwarf II
+ debug format (which became the default format (instead
+ of stabs) in gcc 3.1).
+ </para>
+ </listitem>
+ </itemizedlist>
+ </para>
+
+ <para>
+ A few wine extensions available through the monitor command.
+<screen>
+monitor wnd lists all window in the Wine session
+monitor proc lists all processes in the Wine session
+monitor mem displays memory mapping of debugged process
+ (doesn't work)
+</screen>
+ </para>
+ </sect2>
+
+ <sect2>
<title>Using other Unix debuggers</title>
<para>
@@ -1640,25 +1713,40 @@
<sect2>
<title>Main differences between winedbg and regular Unix debuggers</title>
-
- <!-- FIXME: convert this into a table -->
- <screen>
-+----------------------------------+---------------------------------+
-| WineDbg | gdb |
-+----------------------------------+---------------------------------+
-|WineDbg debugs a Windows' process:|gdb debugs a Windows' thread: |
-|+ the various threads will be |+ a separate gdb session is |
-| handled by the same WineDbg | needed for each thread of |
-| session | Windows' process |
-|+ a breakpoint will be triggered |+ a breakpoint will be triggered |
-| for any thread of the w-process | only for the w-thread debugged |
-+----------------------------------+---------------------------------+
-|WineDbg supports debug information|gdb supports debug information |
-|from: |from: |
-|+ stabs (standard Unix format) |+ stabs (standard Unix format) |
-|+ Microsoft's C, CodeView, .DBG | |
-+----------------------------------+---------------------------------+
- </screen>
+ <table><title>Debuggers comparison</title>
+ <tgroup cols=2 align="left">
+ <tbody>
+ <row>
+ <entry>WineDbg</entry><entry>gdb</entry>
+ </row>
+ <row>
+ <entry>
+ WineDbg debugs a Windows' process: the various
+ threads will be handled by the same WineDbg session,
+ and a breakpoint will be triggered for any thread of
+ the W-process
+ </entry>
+ <entry>
+ gdb debugs a Windows' thread: a separate gdb session
+ is needed for each thread of a Windows' process and
+ a breakpoint will be triggered only for the w-thread
+ debugged
+ </entry>
+ </row>
+ <row>
+ <entry>
+ WineDbg supports debug information from stabs
+ (standard Unix format) and Microsoft's C, CodeView,
+ .DBG
+ </entry>
+ <entry>
+ GDB supports debug information from stabs (standard
+ Unix format) and Dwarf II.
+ </entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
</sect2>
</sect1>
@@ -1666,11 +1754,19 @@
<sect1 id="dbg-limits">
<title>Limitations</title>
- <para>
- 16 bit processes are not supported (but calls to 16 bit code
- in 32 bit applications are).
- </para>
-
+ <itemizedlist>
+ <listitem>
+ <para>
+ 16 bit processes are not supported (but calls to 16 bit
+ code in 32 bit applications are).
+ </para>
+ </listitem>
+ <listitem>
+ <para>
+ Function call in expression is no longer supported
+ </para>
+ </listitem>
+ </itemizedlist>
</sect1>
</chapter>
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