[LLVMdev] DWARF unmangled subprog name (DW_AT_name)

[Keno Fischer]

That doesn't seem possible with the public API or am I mistaking?


On Wed, May 7, 2014 at 12:13 AM, Eric Christopher <echristo at gmail.com>wrote:

> On Tue, May 6, 2014 at 8:09 PM, Isaiah Norton <isaiah.norton at gmail.com>
> wrote:
> > Hi,
> >
> > I am looking for a way to get unmangled subprogram names from a
> > DWARFContext. The name I want is available in the attribute `DW_AT_name`
> > [1], but as far as I can tell this is only returned as a fallback in
> > `DWARFDebugInfoEntryMinimal::getSubroutineName` when the linkage name is
> not
> > available [2].
> >
> > If this is not currently possible, is there any interest in adding such
> > access to the public DebugInfo API? Perhaps with an additional
> > "UnmangledName" option in `DILineInfoSpecifier`.
> >
> > Thanks,
> > Isaiah
> >
> > [1]: for example:
> >
> > 0x0001bb00:   DW_TAG_subprogram [2]
> >                 DW_AT_MIPS_linkage_name [DW_FORM_strp]  (
> > .debug_str[0x00007934] = "julia_vcat4473")
> >                 DW_AT_name [DW_FORM_strp]       ( .debug_str[0x00000913]
> =
> > "vcat")
> >
> >
> > [2]
> >
> https://github.com/llvm-mirror/llvm/blob/master/lib/DebugInfo/DWARFDebugInfoEntry.cpp#L279-L286
> >
> >
>
> If you just want the DW_AT_name you should be able to iterate over the
> DIEs and pull out the DW_AT_name attribute from all of the subprogram
> DIEs. Is there some other use that you're looking for? I'm not quite
> sure what you're trying to accomplish.
>
> -eric
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