Configure GDB pretty printer for Msys2 - Revision history

Ollydbg: How to add the wxWidgets' pretty printer

2023-07-03T06:30:56Z

How to add the wxWidgets' pretty printer

Ollydbg: use TARGET_COMPILER_DIR macros

2023-07-03T06:21:40Z

use TARGET_COMPILER_DIR macros

Ollydbg: fix link format

2022-04-17T04:04:10Z

fix link format

Ollydbg: a new page for configure the pretty printer for msys2

2021-03-20T12:01:33Z

a new page for configure the pretty printer for msys2

New page

This is my way to use gdb python pretty printer for the libstdcxx under msys2.
Suppose you use 64bit gcc compiler. My msys2 is installed under F:\msys64

In the Menu->Settings->Debugger settings. Open the debugger plugin setting dialog.

Then, in the "Executable path" field, select "F:\msys64\mingw64\bin\gdb.exe"
in the "Debugger initialization commands" field, put the following text in the edit control.

<pre>
source F:\msys64\mingw64\etc\gdbinit
</pre>

I see that I have to modify the file "F:\msys64\mingw64\etc\gdbinit" file: below is the original code

<pre>
python
import sys
sys.path.insert(0, sys.path[0] + '/../../gcc-9.2.0/python')
from libstdcxx.v6.printers import register_libstdcxx_printers
end
</pre>

But you have to add one line before the "end" statement like below to let the register_libstdcxx_printers function get executed.

<pre>
python
import sys
sys.path.insert(0, sys.path[0] + '/../../gcc-9.2.0/python')
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers(None)
end
</pre>

BTW: It is the same thing to add the python pretty printer for wxWidgets. You can use this file:

<pre>https://github.com/wxWidgets/wxWidgets/blob/master/misc/gdb/print.py</pre>

=Useful Links=
[/index.php/topic,23590.msg160735.html#msg160735 forum links]

← Older revision		Revision as of 06:30, 3 July 2023
Line 52:		Line 52:
	$(TARGET_COMPILER_DIR)bin\gdb.exe		$(TARGET_COMPILER_DIR)bin\gdb.exe
	</pre>		</pre>
		+
		+	=Add the pretty printer for wxWidgets=
		+	Here is the full gdbinit content when using latest gcc under msys2/mingw64
		+
		+	<pre>
		+	python
		+	import sys
		+	sys.path.insert(0, sys.path[0] + '/../../gcc-12.2.0/python')
		+	from libstdcxx.v6.printers import register_libstdcxx_printers
		+	register_libstdcxx_printers (None)
		+
		+	sys.path.insert(0, sys.path[0] + '/../../../etc')
		+	import wxprint
		+
		+	end
		+	</pre>
		+
		+	Note that the two lines were added to the original gdbinit(note once you use pacman to upgrade you gcc, this gdbinit file will get overwritten)
		+
		+	<pre>
		+	sys.path.insert(0, sys.path[0] + '/../../../etc')
		+	import wxprint
		+	</pre>
		+
		+	Here, the "wxprint" is a file named "wxprint.py", which is just the same file as: https://github.com/wxWidgets/wxWidgets/blob/master/misc/gdb/print.py, I just put this "wxprint.py" in the same folder as the gdbinit file.

← Older revision		Revision as of 04:04, 17 April 2022
Line 37:		Line 37:

	=Useful Links=		=Useful Links=
−	[/index.php/topic,23590.~~msg160735.html#msg160735 forum links~~]	+	[https://forums.codeblocks.org/index.php?topic=23590.0 Debugger: use gdb python pretty printer for the libstdcxx under msys2]

@@ Line 35: / Line 35: @@
 <pre>https://github.com/wxWidgets/wxWidgets/blob/master/misc/gdb/print.py</pre>
 =Useful Links=
 [https://forums.codeblocks.org/index.php?topic=23590.0 Debugger: use gdb python pretty printer for the libstdcxx under msys2]