https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85801
--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> --- On Wed, 16 May 2018, hjl.tools at gmail dot com wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85801 > > --- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> --- > (In reply to Richard Biener from comment #1) > > I think this is valid from an ELF perspective. But ca you really expect > > char *progname to resolve to the library copy? In fact the linker > > resolution > > here is > > > > 1 > > t2.o 4 > > 207 b42c927210240321 PREVAILING_DEF main > > 349 b42c927210240321 PREVAILING_DEF_IRONLY_EXP progname > > 351 b42c927210240321 RESOLVED_DYN stderr > > 347 b42c927210240321 UNDEF my_name > > > > and thus it correctly(?) resolves to a non-exported local copy > > (GNU ld 2.30 branch). Note that without --as-needed I get > > This looks normal to me and works on x86. Linker plugin determined that > program is defined in IR and visible externally: > > /* This is the prevailing definition of the symbol, with no > references from regular objects. It is only referenced from IR > code, but the symbol is exported and may be referenced from > a dynamic object (not seen at link time). */ > LDPR_PREVAILING_DEF_IRONLY_EXP > > The final resolution is performed by the non-LTO part of linker. Since > program is COMMOM, the definition in libxfs.so is used. It sounds like > a linker backend bug. I see. But why's the resolution dependent on --as-needed?
