Could you please add the support of DBG files?

[AlexWhiter]

Could you please add the support of DBG files?

[rainers]

Sounds like a worthwhile extension. Do you have an example pair of exe/dbg files so I can have a look how well this might be suited, especially considering the format of the DBG file and the contained CodeView entries?

[AlexWhiter]

Here's an archive with a small sample: https://yadi.sk/d/B9sY97BJ3TsVcV
test.exe is just a simple program with recursion (to check if WinDBG can correctly unwind the stack using the resulting PDB), and test.dbg is a corresponding DBG made with map2dbd utility.

I've also added test_with_embedded_DBG.exe file which is test.exe with manually added CV data. cv2pdb can correctly process this file.

I couldn't find any documentation on the DBG file structure, but the headers are documented and declared in WinNT.h, look for IMAGE_SEPARATE_DEBUG_HEADER.
The file layout seems to be as follows:

1. IMAGE_SEPARATE_DEBUG_HEADER
2. Several IMAGE_SECTION_HEADERs (count = Header.NumberOfSections)
3. Optional ExportSymbols (size = Header.ExportedNamesSize, usually zero)
4. One or more IMAGE_DEBUG_DIRECTORY (size = Header.DebugDirectorySize)
5. The data blocks described by the IMAGE_DEBUG_DIRECTORY entries.

[rainers]

The data looks pretty simple to process. I've added conversion of DBG to PDB (see d67da0e), but this still misses embedding the RSDS debug-link into the executable.

If you want to implement it I'll be happy to review and merge.

[AlexWhiter]

Great!
I'll try to implement this.

[AlexWhiter]

Seems to be working. Thanks! :)