From 1721af3f967b6bf2d51cb09854fe719d0fbd40ba Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 24 Aug 2001 08:53:35 +0000 Subject: Update. 2001-08-24 Ulrich Drepper * elf/do-rel.h (elf_dynamic_do_rel): If not relocating lazily, don't call elf_machine_rel for the last DT_RELCOUNT relocations but instead elf_machine_rel_relative. * sysdeps/alpha/dl-machine.h: Define elf_machine_rel_relative. Minor optimizations. * sysdeps/arm/dl-machine.h: Likewise. * sysdeps/cris/dl-machine.h: Likewise. * sysdeps/hppa/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/ia64/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.h: Likewise. * sysdeps/s390/s390-32/dl-machine.h: Likewise. * sysdeps/s390/s390-64/dl-machine.h: Likewise. * sysdeps/sh/dl-machine.h: Likewise. * sysdeps/sparc/sparc32/dl-machine.h: Likewise. * sysdeps/sparc/sparc64/dl-machine.h: Likewise. --- sysdeps/alpha/dl-machine.h | 21 +++++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) (limited to 'sysdeps/alpha/dl-machine.h') diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h index 1634e96950..e16f046cb7 100644 --- a/sysdeps/alpha/dl-machine.h +++ b/sysdeps/alpha/dl-machine.h @@ -480,7 +480,7 @@ elf_machine_rela (struct link_map *map, /* We cannot use a switch here because we cannot locate the switch jump table until we've self-relocated. */ - if (r_type == R_ALPHA_RELATIVE) + if (__builtin_expect (r_type == R_ALPHA_RELATIVE, 0)) { #ifndef RTLD_BOOTSTRAP /* Already done in dynamic linker. */ @@ -501,7 +501,7 @@ elf_machine_rela (struct link_map *map, } } #ifndef RTLD_BOOTSTRAP - else if (r_type == R_ALPHA_NONE) + else if (__builtin_expect (r_type == R_ALPHA_NONE, 0)) return; #endif else @@ -547,6 +547,23 @@ elf_machine_rela (struct link_map *map, } } +static inline void +elf_machine_rel_relative (Elf64_Addr l_addr, const Elf64_Rel *reloc, + Elf64_Addr *const reloc_addr) +{ + /* XXX Make some timings. Maybe it's preverable to test for + unaligned access and only do it the complex way if necessary. */ + void *reloc_addr_1 = reloc_addr; + Elf64_Addr reloc_addr_val; + + /* Load value without causing unaligned trap. */ + memcpy (&reloc_addr_val, reloc_addr_1, 8); + reloc_addr_val += l_addr; + + /* Store value without causing unaligned trap. */ + memcpy (reloc_addr_1, &reloc_addr_val, 8); +} + static inline void elf_machine_lazy_rel (struct link_map *map, Elf64_Addr l_addr, const Elf64_Rela *reloc) -- cgit 1.4.1