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Re: Malformed phdrs in separated debuginfo
- From: Josh Stone <jistone at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Tue, 25 Feb 2014 09:28:41 -0800
- Subject: Re: Malformed phdrs in separated debuginfo
On 02/25/2014 01:43 AM, Florian Weimer wrote:
> On 02/24/2014 05:54 PM, Mark Wielaard wrote:
>>> Is there a reliable way to recognize separate debugging information?
>>> Then I could avoid extracting data from phdrs.
>> I looked a bit into this and I don't see any way to detect that the
>> phdrs are invalid, unless you already know this is a separate debuginfo
>> file and not a real/valid ELF file.
> Could you change the debuginfo extraction to clearly mark the resulting
> ELF files as separate debuginfo? This would help dealing with this in
> the future.
And/or, could the debuginfo extraction keep the .interp section? The
rest of the phdr offsets would still be meaningless, of course, but
INTERP/.interp is both tiny and useful.
FWIW, binutils' readelf prints corrupt INTERP from debuginfo too.