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| author | Jakub Jelinek <jakub@redhat.com> | 2009-06-15 07:46:53 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-06-15 07:46:53 -0700 |
| commit | 021259621898fa6731d6d44c3313b6af43f727f4 (patch) | |
| tree | ff07fe718533fd3b24994e39236b03a980f25bc5 | |
| parent | 0efa1cd30ff4680de838657d3a08738344ded719 (diff) | |
| download | glibc-021259621898fa6731d6d44c3313b6af43f727f4.tar.gz glibc-021259621898fa6731d6d44c3313b6af43f727f4.tar.xz glibc-021259621898fa6731d6d44c3313b6af43f727f4.zip | |
libc part of prelink IFUNC support.
The dl-lookup.c changes are needed for prelink (support in prelink checked into SVN, tested for both i?86 and x86-64), dl-irel.h just something I discovered by code inspection.
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | elf/dl-lookup.c | 17 | ||||
| -rw-r--r-- | sysdeps/i386/dl-irel.h | 2 |
3 files changed, 20 insertions, 7 deletions
diff --git a/ChangeLog b/ChangeLog index 673493886b..95b13e00f9 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2009-06-15 Jakub Jelinek <jakub@redhat.com> + + * elf/dl-lookup.c (_dl_debug_bindings): When resolving to + STT_GNU_IFUNC symbol or in 8 into type_class. + + * sysdeps/i386/dl-irel.h (elf_irel): Use Elf32_Addr type + instead of Elf64_Addr. + 2009-06-14 Ulrich Drepper <drepper@redhat.com> * po/sv.po: Update from translation team. diff --git a/elf/dl-lookup.c b/elf/dl-lookup.c index 92dc7b226a..707d650719 100644 --- a/elf/dl-lookup.c +++ b/elf/dl-lookup.c @@ -1,5 +1,5 @@ /* Look up a symbol in the loaded objects. - Copyright (C) 1995-2005, 2006, 2007 Free Software Foundation, Inc. + Copyright (C) 1995-2005, 2006, 2007, 2009 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -542,15 +542,20 @@ _dl_debug_bindings (const char *undef_name, struct link_map *undef_map, conflict = 1; } - if (value->s - && (__builtin_expect (ELFW(ST_TYPE) (value->s->st_info) - == STT_TLS, 0))) - type_class = 4; + if (value->s) + { + if (__builtin_expect (ELFW(ST_TYPE) (value->s->st_info) + == STT_TLS, 0)) + type_class = 4; + else if (__builtin_expect (ELFW(ST_TYPE) (value->s->st_info) + == STT_GNU_IFUNC, 0)) + type_class |= 8; + } if (conflict || GLRO(dl_trace_prelink_map) == undef_map || GLRO(dl_trace_prelink_map) == NULL - || type_class == 4) + || type_class >= 4) { _dl_printf ("%s 0x%0*Zx 0x%0*Zx -> 0x%0*Zx 0x%0*Zx ", conflict ? "conflict" : "lookup", diff --git a/sysdeps/i386/dl-irel.h b/sysdeps/i386/dl-irel.h index 810a35050b..30385a1ef8 100644 --- a/sysdeps/i386/dl-irel.h +++ b/sysdeps/i386/dl-irel.h @@ -35,7 +35,7 @@ elf_irel (const Elf32_Rel *reloc) if (__builtin_expect (r_type == R_386_IRELATIVE, 1)) { - Elf64_Addr value = ((Elf32_Addr (*) (void)) (*reloc_addr)) (); + Elf32_Addr value = ((Elf32_Addr (*) (void)) (*reloc_addr)) (); *reloc_addr = value; } else |