[llvm-dev] llvm pdb utility question - how to convert real address to a segmented one

[Jordan Frost via llvm-dev]

Before all that did you verify that LLVM's tool matches Microsoft's CVDump?

LLVM's tool is still somewhat young though I haven't run into problems
recently (~ Jan 2018)


On Sat, Mar 3, 2018 at 10:34 AM, Hayden Livingston via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> I will build LLVM locally, debug and report back.
>
> On Sat, Mar 3, 2018 at 2:47 AM, Hayden Livingston
> <halivingston at gmail.com> wrote:
> > I've just started using the llvm-pdbutil tool. Great job on the general
> tool.
> >
> > But I'm having trouble figuring out how the output of the dump tool
> > relates to real addresses in memory or for that matter relative
> > virtual address either.
> >
> > Here's the logic I tried (which doesn't work):
> >
> > (1) Get Instruction Pointer of interest
> > (2) Subtract the base address of the dll that address belongs to
> > (3) You now have an RVA
> >
> > Use llvm-pdbutil to dump the pdb information.
> >
> > The problem is I'm unable to find (or approximate) this RVA in the
> > dump information. The numbers in the llvm dumped files are in the form
> > segment:offset but even after accounting for the segment, the offsets
> > look way off.
> >
> > Does anybody have any idea what I might be doing wrong?
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