how to convert address to lines and file names on windows with PDB files?

user_7337135 0
Viewed 336

I have PDB files and callstack like this

#1 - wseclient.dll+0x121170
#2 - wseclient.dll+0x120024
#3 - wseclient.dll+0x25fbf

I used to use add2line.exe to convert address to lines, but it doesn't work on vs2019, does anybody know is there any other way to convert address on callstack?

visual-studio-2017 pdb callstack windbg
1 Answers

Setting up an example

Some sample code to be compiled with Visual Studio 2019:

#include <iostream>
class Test {
public:
    __declspec(noinline) static int one()
    {
        throw std::exception("maximize debugging fun");
    }
};
__declspec(noinline) int main()
{
    return Test::one();
}

This will create the following call stack when being run in WinDbg:

0:000> k
 # ChildEBP RetAddr      
...
02 00affa6c 00661316     CallStackDecodingExample!Test::one+0x1d [C:\...\CallStackDecodingExample.cpp @ 6] 
...

And we can use some calculations to get the numbers back and forth:

0:000> ? CallStackDecodingExample!Test::one+0x1d
Evaluate expression: 6689037 = 0066110d
0:000> ? CallStackDecodingExample
Evaluate expression: 6684672 = 00660000
0:000> ? CallStackDecodingExample+0x110d
Evaluate expression: 6689037 = 0066110d
0:000> ln 0066110d
 [C:\...\CallStackDecodingExample.cpp @ 6] 
(006610f0)   CallStackDecodingExample!Test::one+0x1d   |  
(00661110)   CallStackDecodingExample!main

Given the debugger was able to resolve the PDBs correctly, we now have the expected result. Let's try to get this without a debugging session, i.e. neither with live debugging nor with crash dump analysis, but by PDBs + text input.

Getting the address from a DLL + PDB

In WinDbg, use "Open dump file", although you don't have a crash dump file. Instead, open the DLL (wseclient.dll or CallStackDecodingExample.exe for this example).

Then use ln:

0:000> ln CallStackDecodingExample+0x110d
 [C:\...\CallStackDecodingExample.cpp @ 6] 
(004010f0)   CallStackDecodingExample!Test::one+0x1d   
|  (00401110)   CallStackDecodingExample!main
user_4809820
Related