[Bug ld/10205] STT_GNU_IFUNC definition doesn't work in executable

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2009-06-01 
13:12 -------
Subject: Bug 10205

CVSROOT:        /cvs/src
Module name:    src
Changes by:     address@hidden  2009-06-01 13:11:52

Modified files:
        bfd            : ChangeLog bfd-in2.h elf32-i386.c elf64-x86-64.c 
                         libbfd.h reloc.c 
        include/elf    : ChangeLog i386.h x86-64.h 
        ld/testsuite   : ChangeLog 
        ld/testsuite/ld-ifunc: ifunc.exp lib.c 
Added files:
        ld/testsuite/ld-ifunc: ifunc-1-x86.d ifunc-1-x86.s 
                               ifunc-2-i386.d ifunc-2-i386.s 
                               ifunc-2-x86-64.d ifunc-2-x86-64.s 
                               ifunc-3-x86.s ifunc-3a-x86.d 
                               ifunc-3b-x86.d ifunc-4-x86.d 
                               ifunc-4-x86.s ifunc-5-i386.d 
                               ifunc-5-i386.s ifunc-5-x86-64.d 
                               ifunc-5-x86-64.s 

Log message:
        bfd/
        
        2009-06-01  H.J. Lu  <address@hidden>
        
        PR ld/10205
        * elf32-i386.c (elf_howto_table): Add R_386_IRELATIVE.
        (elf_i386_reloc_type_lookup): Likewise.
        (R_386_tls): Removed.
        (R_386_irelative): New.
        (R_386_vt_offset): Updated.
        (elf_i386_rtype_to_howto): Likewise.
        (elf_i386_link_hash_table): Add igotplt, iplt and irelplt.
        (elf_i386_link_hash_table_create): Initialize igotplt,
        iplt and irelplt.
        (elf_i386_check_relocs): Handle STT_GNU_IFUNC symbol first.
        (elf_i386_adjust_dynamic_symbol): Likewise.
        (elf_i386_allocate_dynrelocs): Likewise.
        (elf_i386_relocate_section): Likewise.
        (elf_i386_size_dynamic_sections): Set up .iplt and .igot.plt
        sections.
        (elf_i386_finish_dynamic_symbol): When building a static
        executable, use .iplt, .igot.plt and .rel.iplt sections for
        STT_GNU_IFUNC symbols.  Generate R_386_IRELATIVE relocation for
        locally defined STT_GNU_IFUNC symbol.
        
        * elf64-x86-64.c (x86_64_elf_howto): Add R_X86_64_IRELATIVE.
        (x86_64_reloc_map): Likewise.
        (R_X86_64_standard): Updated.
        (elf64_x86_64_link_hash_table): Add igotplt, iplt and irelplt.
        (elf64_x86_64_link_hash_table_create): Initialize igotplt,
        iplt and irelplt.
        (elf64_x86_64_check_relocs): Handle STT_GNU_IFUNC symbol first.
        (elf64_x86_64_adjust_dynamic_symbol): Likewise.
        (elf64_x86_64_allocate_dynrelocs): Likewise.
        (elf64_x86_64_relocate_section): Likewise.
        (elf64_x86_64_size_dynamic_sections): Set up .iplt and .igot.plt
        sections.
        (elf64_x86_64_finish_dynamic_symbol): When building a static
        executable, use .iplt, .igot.plt and .rela.iplt sections for
        STT_GNU_IFUNC symbols.  Generate R_X86_64_IRELATIVE relocation
        for locally defined STT_GNU_IFUNC symbol.
        
        * reloc.c (BFD_RELOC_386_IRELATIVE): New.
        (BFD_RELOC_X86_64_IRELATIVE): Likewise.
        
        * bfd-in2.h: Regenerated.
        * libbfd.h: Likewise.
        
        include/elf/
        
        2009-06-01  H.J. Lu  <address@hidden>
        
        PR ld/10205
        * i386.h (R_386_IRELATIVE): New.
        * x86-64.h (R_X86_64_IRELATIVE): Likewise.
        
        ld/testsuite/
        
        2009-06-01  H.J. Lu  <address@hidden>
        
        PR ld/10205
        * ld-ifunc/ifunc.exp (contains_irelative_reloc): New.
        Use it on executable and shared library.
        Run *.d.
        
        * ld-ifunc/lib.c: Add a hidden alias, __GI_library_func2, for
        library_func2.
        (library_func): New.
        
        * ld-ifunc/ifunc-1-x86.d: New.
        * ld-ifunc/ifunc-1-x86.s: Likewise.
        * ld-ifunc/ifunc-2-i386.d: Likewise.
        * ld-ifunc/ifunc-2-i386.s: Likewise.
        * ld-ifunc/ifunc-2-x86-64.d: Likewise.
        * ld-ifunc/ifunc-2-x86-64.s: Likewise.
        * ld-ifunc/ifunc-3a-x86.d: Likewise.
        * ld-ifunc/ifunc-3b-x86.d: Likewise.
        * ld-ifunc/ifunc-3-x86.s: Likewise.
        * ld-ifunc/ifunc-4-x86.d: Likewise.
        * ld-ifunc/ifunc-4-x86.s: Likewise.
        * ld-ifunc/ifunc-5-i386.d: Likewise.
        * ld-ifunc/ifunc-5-i386.s: Likewise.
        * ld-ifunc/ifunc-5-x86-64.d: Likewise.
        * ld-ifunc/ifunc-5-x86-64.s: Likewise.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/ChangeLog.diff?cvsroot=src&r1=1.4610&r2=1.4611
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/bfd-in2.h.diff?cvsroot=src&r1=1.481&r2=1.482
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/elf32-i386.c.diff?cvsroot=src&r1=1.196&r2=1.197
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/elf64-x86-64.c.diff?cvsroot=src&r1=1.155&r2=1.156
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/libbfd.h.diff?cvsroot=src&r1=1.215&r2=1.216
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/reloc.c.diff?cvsroot=src&r1=1.186&r2=1.187
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/include/elf/ChangeLog.diff?cvsroot=src&r1=1.364&r2=1.365
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/include/elf/i386.h.diff?cvsroot=src&r1=1.11&r2=1.12
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/include/elf/x86-64.h.diff?cvsroot=src&r1=1.11&r2=1.12
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ChangeLog.diff?cvsroot=src&r1=1.1105&r2=1.1106
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-1-x86.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-1-x86.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-2-i386.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-2-i386.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-2-x86-64.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-2-x86-64.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-3-x86.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-3a-x86.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-3b-x86.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-4-x86.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-4-x86.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-5-i386.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-5-i386.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-5-x86-64.d.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc-5-x86-64.s.diff?cvsroot=src&r1=NONE&r2=1.1
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/ifunc.exp.diff?cvsroot=src&r1=1.1&r2=1.2
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/testsuite/ld-ifunc/lib.c.diff?cvsroot=src&r1=1.1&r2=1.2



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http://sourceware.org/bugzilla/show_bug.cgi?id=10205

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