include/elf/

            * common.h (STT_IFUNC): Define.
elfcpp/
            * elfcpp.h (enum STT): Add STT_IFUNC.
bfd/
            * syms.c (struct bfd_symbol): Add new flag BSF_INDIRECT_FUNCTION.
            Remove redundant flag BFD_FORT_COMM_DEFAULT_VALUE.  Renumber flags
            to remove gaps.
            (bfd_print_symbol_vandf): Return 'i' for BSF_INDIRECT_FUNCTION.
            (bfd_decode_symclass): Likewise.
            * elf.c (swap_out_syms): Translate BSF_INDIRECT_FUNCTION into
            STT_IFUNC.
            (elf_find_function): Treat STT_IFUNC in the same way as STT_FUNC.
            (_bfd_elf_is_function_type): Likewise.
            * elf32-arm.c (arm_elf_find_function): Likewise.
            (elf32_arm_adjust_dynamic_symbol): Likewise.
            (elf32_arm_swap_symbol_in): Likewise.
            (elf32_arm_additional_program_headers): Likewise.
            * elf32-i386.c (is_indirect_symbol): New function.
            (elf_i386_check_relocs): Also generate dynamic relocs for
            relocations against STT_IFUNC symbols.
            (allocate_dynrelocs): Likewise.
            (elf_i386_relocate_section): Likewise.
            * elf64-x86-64.c (is_indirect_symbol): New function.
            (elf64_x86_64_check_relocs): Also generate dynamic relocs for
            relocations against STT_IFUNC symbols.
            (allocate_dynrelocs): Likewise.
            (elf64_x86_64_relocate_section): Likewise.
            * elfcode.h (elf_slurp_symbol_table): Translate STT_IFUNC into
            BSF_INDIRECT_FUNCTION.
            * elflink.c (_bfd_elf_adjust_dynamic_reloc_section): Add support
            for STT_IFUNC symbols.
            (get_ifunc_reloc_section_name): New function.
            (_bfd_elf_make_ifunc_reloc_section): New function.
            * elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs field.
            * bfd-in2.h: Regenerate.
gas/
            * config/obj-elf.c (obj_elf_type): Add support for STT_IFUNC type.
            * doc/as.texinfo: Document new feature.
            * NEWS: Mention new feature.
gas/testsuite/
            * gas/elf/type.s: Add test of STT_IFUNC symbol type.
            * gas/elf/type.e: Update expected disassembly.
            * gas/elf/elf.exp: Update grep of symbol types.
ld/
            * NEWS: Mention new feature.
            * pe-dll.c (process_def_file): Replace use of redundant
            BFD_FORT_COMM_DEFAULT_VALUE with 0.
            * scripttempl/elf.sc: Add .rel.ifunc.dyn and .rela.ifunc.dyn
            sections.
ld/testsuite/
            * ld-mips-elf/reloc-1-n32.d: Updated expected output for reloc
            descriptions.
            * ld-mips-elf/reloc-1-n64.d: Likewise.
            * ld-i386/ifunc.d: New test.
            * ld-i386/ifunc.s: Source file for the new test.
            * ld-i386/i386.exp: Run the new test.

1 files changed, 5 insertions, 2 deletions

diff --git a/bfd/elf.c b/bfd/elf.c
index 70ed765..7597d01 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -6427,6 +6427,8 @@ Unable to find equivalent output section for symbol '%s' from section '%s'"),
 
       if ((flags & BSF_THREAD_LOCAL) != 0)
 	type = STT_TLS;
+      else if ((flags & BSF_INDIRECT_FUNCTION) != 0)
+	type = STT_IFUNC;
       else if ((flags & BSF_FUNCTION) != 0)
 	type = STT_FUNC;
       else if ((flags & BSF_OBJECT) != 0)
@@ -7120,6 +7122,7 @@ elf_find_function (bfd *abfd ATTRIBUTE_UNUSED,
 	  continue;
 	case STT_NOTYPE:
 	case STT_FUNC:
+	case STT_IFUNC:
 	  if (bfd_get_section (&q->symbol) == section
 	      && q->symbol.value >= low_func
 	      && q->symbol.value <= offset)
@@ -8938,10 +8941,10 @@ _bfd_elf_set_osabi (bfd * abfd,
 
 /* Return TRUE for ELF symbol types that represent functions.
    This is the default version of this function, which is sufficient for
-   most targets.  It returns true if TYPE is STT_FUNC.  */
+   most targets.  It returns true if TYPE is STT_FUNC or STT_IFUNC.  */
 
 bfd_boolean
 _bfd_elf_is_function_type (unsigned int type)
 {
-  return (type == STT_FUNC);
+  return (type == STT_FUNC || type == STT_IFUNC);
 }