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Re: [PATCH] libdw: Make dwarf_getfuncs find all (defining) DW_TAG_subprogram DIEs.
- From: Josh Stone <jistone at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Mon, 07 Oct 2013 10:53:29 -0700
- Subject: Re: [PATCH] libdw: Make dwarf_getfuncs find all (defining) DW_TAG_subprogram DIEs.
BTW, I thought of another corner case which I think will break
offset-resuming in dwarf_getfuncs: DW_AT_import+DW_FORM_GNU_ref_alt.
The die offsets from the main file and alt file will almost surely
overlap, and if you happen to have a subprogram at the same offset in
both, then it's not possible to tell which one to resume on.
Must the offsets used by dwarf_getfuncs be die offsets? After all, they
are type ptrdiff_t, not Dwarf_Off. This particular problem might be
solved by instead using die->addr for the "offset" value.