Re: debug symbol issue in VC

From:
Norbert Unterberg <nunterberg@newsgroups.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Tue, 23 Sep 2008 16:32:20 +0200
Message-ID:
<#$JjwkYHJHA.728@TK2MSFTNGP03.phx.gbl>
George schrieb:

I already put the symbol files (PDB) files in the same folder as the running
exe/dll.


When you attach the debugger to the process, it lists all the process'
modules (EXE and DLLs) in the output window. Check if it says something
like "loaded debug symbols" after the name(s) if your files.

Two more questions

1.

If the related PDB file exists, it means the binary is compiled/built with
debug information so that we can debug?


It says that at least the linker has debug symbols on. Check you release
mode compiler setting for debug symbols.

2.

I have enabled the optimization when compile, does it impact anything in
debugging to match source codes with binary?


Yes. Stepping through optimized release code will give you lots of
surprises. Some code will be missing completely (like inline functions,
template code), some variable valules will be displayed wrong or missing
completely, and some code will have been moved around by the optimizer.

Norbert

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