This is the README file for cv2pdb, a converter of DMD CodeView/DWARF debug information to PDB files

Copyright (c) 2009-2010 by Rainer Schuetze, All Rights Reserved

The goal of this project is to make debugging of D applications that were created with the Digital Mars DMD compiler, as seamless as possible in current versions of Visual Studio (i.e Visual Studio 2008 and VCExpress). As a side effect, other applications might also benefit from the converted debug information, like WinDbg or DMC.

Features

conversion of DMD CodeView information to PDB file
conversion of DWARF information to PDB file
converted line number info allows setting breakpoints
display of variables, fields and objects in watch, local and auto window and in data tooltips
generates generic debug info for dynamic arrays, associative arrays and delegates
autoexp.dat allows convenient display of dynamic and associative arrays in watch windows
demangles function names for convenient display of callstack
also works debugging executables built with the Digital Mars C/C++ compiler DMC

License information

This code is distributed under the term of the Artistic License 2.0. For more details, see the full text of the license in the file LICENSE.

The file demangle.cpp is an adaption of denangle.d to C++ distributed with the DMD compiler. It is placed into the Public Domain.

The file mscvpdb.h is taken from the WINE-project (http://www.winehq.org) and is distributed under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. See the file header for more details and http://www.gnu.org/licenses/lgpl.html for the full license.

The file dwarf.h is taken from the libdwarf project (http://reality.sgiweb.org/davea/dwarf.html) and is distributed under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. See the file header for more details and http://www.gnu.org/licenses/lgpl.html for the full license.

Installation

Sorry, there is no full featured installer available yet, you'll have to do some simple manual steps to use cv2pdb.

See the file INSTALL for further details.

Usage

Quick start:

Simply run

cv2pdb debuggee.exe

on your executable to debug and start the debugger, e.g.

devenv debuggee.exe

or

vcexpress debuggee.exe

Description:

cv2pdb.exe is a command line tool which outputs its usage information if run without arguments:

usage: cv2pdb [-D<version>|-C|-n|-e|-s<C>|-p<embedded-pdb>] <exe-file> [new-exe-file] [pdb-file]

With the -D option, you can specify the version of the DMD compiler you are using. Unfortunately, this information is not embedded into the debug information. The default is -D2.072. So far, this information is only needed to determine whether "char[]" or "const char[]" is translated to "string".

Starting with DMD 2.043, assoiciative arrays have a slightly different implementation, so debug information needs to be adjusted aswell. This changed again with DMD 2.068. Version 2.072 started embedding source language 'D' into object files. Use -D 2.043 or higher to produce the matching debug info.

Option -C tells the program, that you want to debug a program compiled with DMC, the Digital Mars C/C++ compiler. It will disable some of the D specific functions and will enable adjustment of stack variable names.

With option -n demangling of symbols is disabled.

Older versions of the Visual Studio Debugger (up to VS 2012) don't work well if type and symbol names contain .. That's why cv2pdb replaces these characters with '@' by default. This character can be configured to another character with the -s, so -s. will keep symbol names as emitted by the compiler.

The first file name on the command line is expected to be the executable or dynamic library compiled by the DMD compiler and containing the CodeView debug information (-g option used when running dmd).

If no further file name is given, a PDB file will be created with the same base name as the executable, but with extension "pdb", and the executable will be modified to redirect debuggers to this pdb-file instead of the original debug information.

Example:

cv2pdb debuggee.exe

In an environment using make-like tools, it is often useful to create a new file instead of modifying existing files. That way the file modification time can be used to continue the build process at the correct step. If another file name is specified, the new executable is written to this file and leaves the input executable unmodified.. The naming of the pdb-file will use the base name of the output file.

Example:

cv2pdb debuggee.exe debuggee_pdb.exe

Last but not least, the resulting pdb-file can be renamed by specifying a third file name.

Example:

cv2pdb debuggee.exe debuggee_pdb.exe debug.pdb

If you plan to move the excutable and PDB file to another computer, it might be helpful to change the path or file reference that is embedded into the converted binary. -p allows to replace the absolute path of the PDB file with any other file name irrespective of the actually generated PDB file and without making the file reference absolute.

Changes

For documentation on the changes between this version and previous versions, please see the file CHANGES.

Feedback

The project home for cv2pdb is here:

https://github.com/rainers/cv2pdb

There's an issue tracker, where you can leave your comments and suggestions.

Have fun, Rainer Schuetze

License

dscho/cv2pdb

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