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Re: [0/5] handle multiple .debug_types sections
- From: Tom Tromey <tromey at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Tue, 20 Mar 2012 15:09:11 -0600
- Subject: Re: [0/5] handle multiple .debug_types sections
>>>>> "Roland" == Roland McGrath <firstname.lastname@example.org> writes:
Tom> There may not be a link time -- you can "pahole something.o". If the .o
Tom> was made with -fdebug-types-section, then it may have multiple such
Tom> sections. This is just a consequence of the use of different comdat
Tom> sections for each type unit.
Roland> In general we've said that libdw is not meant for generic ET_REL
Ok. I did not know this.
Roland> The exception is .ko files, which are ET_REL but are the output
Roland> of ld -r so section merging has already been done. I guess that
Roland> will leave multiple sections in a COMDAT situation, but those
Roland> don't appear in .ko files.
In my experiment with ld -r, I see multiple .debug_types sections.
Are .ko files built in some special way that would avoid this?