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Subject: [Bug target/83782] [9/10/11/12 Regression] Inconsistent address for
 hidden ifunc in a shared library
Date: Fri, 03 Dec 2021 13:13:25 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D83782

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:f7854b908977adce4ff669c4e0332ef868568b7c

commit r12-5771-gf7854b908977adce4ff669c4e0332ef868568b7c
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat Jun 19 08:16:45 2021 -0700

    Add TARGET_IFUNC_REF_LOCAL_OK

    1. On some targets, like PowerPC, reference to ifunc function resolver
    must be non-local so that compiler will properly emit PLT call.  Add
    TARGET_IFUNC_REF_LOCAL_OK to allow binding indirect function resolver
    locally for targets which don't require special PLT call sequence.
    2. Add ix86_call_use_plt_p to call local ifunc function resolvers via
    PLT.

    gcc/

            PR target/51469
            PR target/83782
            * target.def (ifunc_ref_local_ok): Add a target hook.
            * varasm.c (default_binds_local_p_3): Force indirect function
            resolver non-local only if targetm.ifunc_ref_local_ok returns
            false.
            * config/i386/i386-expand.c (ix86_expand_call): Call
            ix86_call_use_plt_p to check if PLT should be used.
            * config/i386/i386-protos.h (ix86_call_use_plt_p): New.
            * config/i386/i386.c (output_pic_addr_const): Call
            ix86_call_use_plt_p to check if "@PLT" is needed.
            (ix86_call_use_plt_p): New.
            (TARGET_IFUNC_REF_LOCAL_OK): New.
            * doc/tm.texi.in: Add TARGET_IFUNC_REF_LOCAL_OK.
            * doc/tm.texi: Regenerated.

    gcc/testsuite/

            PR target/51469
            PR target/83782
            * gcc.target/i386/pr83782-1.c: New test.
            * gcc.target/i386/pr83782-2.c: Likewise.=