📚 OpenRCE is preserved as a read-only archive. Launched at RECon Montreal in 2005. Registration and posting are disabled.








Flag: Tornado! Hurricane!

 Forums >>  Debuggers  >>  Symbol loading with Visual C++ 8 & OllyDbg

Topic created on: February 9, 2007 13:58 CST by pierz .

Hello,

I've a strange problem,When I debug a .exe made with visual c++ 8 ollydbg load my .pdb file (I can see it in the logs) but doesn' t display the symbol, It still display "CALL program.00402848" or it should display "CALL program._function_name". The .pdb is correct there are all the symbol in there. I try all the combinaison option of the linker and compiler (/ZI or /Z7 or /COFF.... and many other stuff) but nothing to do, it doesn t worked.

However it work when I make my .exe & .pdb with visual c++ 6 ! I can see every symbol.

I ve found a difference between pdb from vc++6 & pdb from vc++8, VC6 pdb has the header "Microsoft C/C++ program database 2.00" and the VC8 pdb has the header "Microsoft C/C++ MSF 7.00". Is their different version of .pdb file?

PS:Sorry for my bad english.

  anonymouse     February 10, 2007 00:52.15 CST
yes vc 8 uses pdb 7.0 while older used pdb 2.0 file format

do you have the latest dbghlp.dll (the one that comes with ollydbg is old and compatible with only w2k pdb 2.0 format

if you do not have it find the latest redistributable package of dbghlp,symserv. and other dlls) from ms or

simply downaload the latest windbg package(6.6.7.5 ithink) and replace the dbghlp.dll in ollydb folder with the onethats in windbg directory

before doing all this first try drag drop your latest pdb to ollydbg directory and see if it makes any differance
at all with old existing dbghlp.dll

  pierz     February 10, 2007 06:20.19 CST
Thanks a lot, it works. I used the dbghlp.dll from windbg.

Note: Registration is required to post to the forums.

There are 31,328 total registered users.


Recently Created Topics
[help] Unpacking VMP...
Mar/12
Reverse Engineering ...
Jul/06
let 'IDAPython' impo...
Sep/24
set 'IDAPython' as t...
Sep/24
GuessType return une...
Sep/20
About retrieving the...
Sep/07
How to find specific...
Aug/15
How to get data depe...
Jul/07
Identify RVA data in...
May/06
Question about memor...
Dec/12


Recent Forum Posts
Finding the procedur...
rolEYder
Question about debbu...
rolEYder
Identify RVA data in...
sohlow
let 'IDAPython' impo...
sohlow
How to find specific...
hackgreti
Problem with ollydbg
sh3dow
How can I write olly...
sh3dow
New LoadMAP plugin v...
mefisto...
Intel pin in loaded ...
djnemo
OOP_RE tool available?
Bl4ckm4n


Recent Blog Entries
halsten
Mar/14
Breaking IonCUBE VM

oleavr
Oct/24
Anatomy of a code tracer

hasherezade
Sep/24
IAT Patcher - new tool for ...

oleavr
Aug/27
CryptoShark: code tracer ba...

oleavr
Jun/25
Build a debugger in 5 minutes

More ...


Recent Blog Comments
nieo on:
Mar/22
IAT Patcher - new tool for ...

djnemo on:
Nov/17
Kernel debugger vs user mod...

acel on:
Nov/14
Kernel debugger vs user mod...

pedram on:
Dec/21
frida.github.io: scriptable...

capadleman on:
Jun/19
Using NtCreateThreadEx for ...

More ...


Imagery
SoySauce Blueprint
Jun 6, 2008

[+] expand

View Gallery (11) / Submit