Add _bfd_elf_ifunc_get_synthetic_symtab
authorH.J. Lu <hjl.tools@gmail.com>
Thu, 4 Dec 2014 22:19:41 +0000 (14:19 -0800)
committerH.J. Lu <hjl.tools@gmail.com>
Fri, 5 Dec 2014 00:55:39 +0000 (16:55 -0800)
commit3972882e52d7199000bb5dfc753a86aa296a567a
treef12cdd28c4f0d470e3db7b5cb17c82824d5631e6
parent82cf9cb2653b39c426f330854c64028eab4cb65d
Add _bfd_elf_ifunc_get_synthetic_symtab

In i386 and x86-64 binaries with ifunc, relocations against .got.plt
section may not be in the same order as entries in PLT section.  This
patch adds _bfd_elf_ifunc_get_synthetic_symtab.  It takes a function
pointer which returns an array of PLT entry symbol values.  It calls
the function pointer to get the PLT entry symbol value array indexed
by relocation index, instead of calling plt_sym_val on each relocation
index.

PR binutils/17677
* elf-bfd.h (_bfd_elf_ifunc_get_synthetic_symtab): New prototype.
* elf-ifunc.c (_bfd_elf_ifunc_get_synthetic_symtab): New
function.
* elf32-i386.c (elf_i386_plt_sym_val): Removed.
(elf_backend_plt_sym_val): Likewise.
(elf_i386_get_plt_sym_val): New.
(elf_i386_get_synthetic_symtab): Likewise.
(bfd_elf32_get_synthetic_symtab): Likewise.
* elf64-x86-64.c (elf_x86_64_plt_sym_val): Removed.
(elf_x86_64_plt_sym_val_offset_plt_bnd): Likewise.
(elf_backend_plt_sym_val): Likewise.
(elf_x86_64_get_plt_sym_val): New.
(elf_x86_64_get_synthetic_symtab): Use
_bfd_elf_ifunc_get_synthetic_symtab.
(bfd_elf64_get_synthetic_symtab): Don't undefine for NaCl.
bfd/ChangeLog
bfd/elf-bfd.h
bfd/elf-ifunc.c
bfd/elf32-i386.c
bfd/elf64-x86-64.c