http://bugzilla.opensuse.org/show_bug.cgi?id=1180610 http://bugzilla.opensuse.org/show_bug.cgi?id=1180610#c12 --- Comment #12 from Richard Biener <rguenther@suse.com> --- (In reply to Martin Li��ka from comment #11)

(In reply to Richard Biener from comment #10)

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So to clarify - when strip strips a section from ELF it also needs to remove any symbols pointing to it since else they might end up pointing into wrong sections or to sections that do not exist (out of bound section index) or to places outside of the (invalid) section.

eu_strip gets this "right" (with limited testing of a simple exec compiled with -flto and stripped with eu-strip --strip-debug), strip --strip-debug as well (binutils 2.35.1).

How do you create the separate debug info ELF file? Note that the problematic symbol is in the separate binary:

$ gcc foo.c -O2 -g -flto -shared -o libfoo.so $ objcopy --only-keep-debug libfoo.so debug.so $ readelf -s --wide debug.so | grep foo.c 60: 0000000000000067 0 NOTYPE LOCAL DEFAULT 25 foo.c.cf7807ca

I don't - I checked that strip --strip-debug does the correct thing. So there must be code to handle symbols refering to the debug. Because objcopy --only-keep-debug keeps the source intact. You need an additional step to strip libfoo.so from its debug info and that's where things go wrong it seems.

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So sth is bogus in the course of events performing the stripping?

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