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include/elf/ChangeLog:

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Introduce TLS descriptors for i386 and x86_64.
* common.h (DT_TLSDESC_GOT, DT_TLSDESC_PLT): New.
* i386.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL, R_386_TLS_DESC):
New.
* x86-64.h (R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL,
R_X86_64_TLSDESC): New.
bfd/ChangeLog:
Introduce TLS descriptors for i386 and x86_64.
* reloc.c (BFD_RELOC_386_TLS_GOTDESC, BFD_RELOC_386_TLS_DESC,
BFD_RELOC_386_TLS_DESC_CALL, BFD_RELOC_X86_64_GOTPC32_TLSDESC,
BFD_RELOC_X86_64_TLSDESC, BFD_RELOC_X86_64_TLSDESC_CALL): New.
* libbfd.h, bfd-in2.h: Rebuilt.
* elf32-i386.c (elf_howto_table): New relocations.
(R_386_tls): Adjust.
(elf_i386_reloc_type_lookup): Map new relocations.
(GOT_TLS_GDESC, GOT_TLS_GD_BOTH_P): New macros.
(GOT_TLS_GD_P, GOT_TLS_GDESC_P, GOT_TLS_GD_ANY_P): New macros.
(struct elf_i386_link_hash_entry): Add tlsdesc_got field.
(struct elf_i386_obj_tdata): Add local_tlsdesc_gotent field.
(elf_i386_local_tlsdesc_gotent): New macro.
(struct elf_i386_link_hash_table): Add sgotplt_jump_table_size.
(elf_i386_compute_jump_table_size): New macro.
(link_hash_newfunc): Initialize tlsdesc_got.
(elf_i386_link_hash_table_create): Set sgotplt_jump_table_size.
(elf_i386_tls_transition): Handle R_386_TLS_GOTDESC and
R_386_TLS_DESC_CALL.
(elf_i386_check_relocs): Likewise.  Allocate space for
local_tlsdesc_gotent.
(elf_i386_gc_sweep_hook): Handle R_386_TLS_GOTDESC and
R_386_TLS_DESC_CALL.
(allocate_dynrelocs): Count function PLT relocations.  Reserve
space for TLS descriptors and relocations.
(elf_i386_size_dynamic_sections): Reserve space for TLS
descriptors and relocations.  Set up sgotplt_jump_table_size.
Don't zero reloc_count in srelplt.
(elf_i386_always_size_sections): New.  Set up _TLS_MODULE_BASE_.
(elf_i386_relocate_section): Handle R_386_TLS_GOTDESC and
R_386_TLS_DESC_CALL.
(elf_i386_finish_dynamic_symbol): Use GOT_TLS_GD_ANY_P.
(elf_backend_always_size_sections): Define.
* elf64-x86-64.c (x86_64_elf_howto): Add R_X86_64_GOTPC32_TLSDESC,
R_X86_64_TLSDESC, R_X86_64_TLSDESC_CALL.
(R_X86_64_standard): Adjust.
(x86_64_reloc_map): Map new relocs.
(elf64_x86_64_rtype_to_howto): New, split out of...
(elf64_x86_64_info_to_howto): ... this function, and...
(elf64_x86_64_reloc_type_lookup): ... use it to map elf_reloc_val.
(GOT_TLS_GDESC, GOT_TLS_GD_BOTH_P): New macros.
(GOT_TLS_GD_P, GOT_TLS_GDESC_P, GOT_TLS_GD_ANY_P): New macros.
(struct elf64_x86_64_link_hash_entry): Add tlsdesc_got field.
(struct elf64_x86_64_obj_tdata): Add local_tlsdesc_gotent field.
(elf64_x86_64_local_tlsdesc_gotent): New macro.
(struct elf64_x86_64_link_hash_table): Add tlsdesc_plt,
tlsdesc_got and sgotplt_jump_table_size fields.
(elf64_x86_64_compute_jump_table_size): New macro.
(link_hash_newfunc): Initialize tlsdesc_got.
(elf64_x86_64_link_hash_table_create): Initialize new fields.
(elf64_x86_64_tls_transition): Handle R_X86_64_GOTPC32_TLSDESC and
R_X86_64_TLSDESC_CALL.
(elf64_x86_64_check_relocs): Likewise.  Allocate space for
local_tlsdesc_gotent.
(elf64_x86_64_gc_sweep_hook): Handle R_X86_64_GOTPC32_TLSDESC and
R_X86_64_TLSDESC_CALL.
(allocate_dynrelocs): Count function PLT relocations.  Reserve
space for TLS descriptors and relocations.
(elf64_x86_64_size_dynamic_sections): Reserve space for TLS
descriptors and relocations.  Set up sgotplt_jump_table_size,
tlsdesc_plt and tlsdesc_got.  Make room for them.  Don't zero
reloc_count in srelplt.  Add dynamic entries for DT_TLSDESC_PLT
and DT_TLSDESC_GOT.
(elf64_x86_64_always_size_sections): New.  Set up
_TLS_MODULE_BASE_.
(elf64_x86_64_relocate_section): Handle R_386_TLS_GOTDESC and
R_386_TLS_DESC_CALL.
(elf64_x86_64_finish_dynamic_symbol): Use GOT_TLS_GD_ANY_P.
(elf64_x86_64_finish_dynamic_sections): Set DT_TLSDESC_PLT and
DT_TLSDESC_GOT.  Set up TLS descriptor lazy resolver PLT entry.
(elf_backend_always_size_sections): Define.
binutils/ChangeLog:
Introduce TLS descriptors for i386 and x86_64.
* readelf.c (get_dynamic_type): Handle DT_TLSDESC_GOT and
DT_TLSDESC_PLT.
gas/ChangeLog:
Introduce TLS descriptors for i386 and x86_64.
* config/tc-i386.c (tc_i386_fix_adjustable): Handle
BFD_RELOC_386_TLS_GOTDESC, BFD_RELOC_386_TLS_DESC_CALL,
BFD_RELOC_X86_64_GOTPC32_TLSDESC, BFD_RELOC_X86_64_TLSDESC_CALL.
(optimize_disp): Emit fix up for BFD_RELOC_386_TLS_DESC_CALL and
BFD_RELOC_X86_64_TLSDESC_CALL immediately, and clear the
displacement bits.
(build_modrm_byte): Set up zero modrm for TLS desc calls.
(lex_got): Handle @tlsdesc and @tlscall.
(md_apply_fix, tc_gen_reloc): Handle the new relocations.
ld/testsuite/ChangeLog:
Introduce TLS descriptors for i386 and x86_64.
* ld-i386/i386.exp: Run on x86_64-*-linux* and amd64-*-linux*.
Add new tests.
* ld-i386/pcrel16.d: Add -melf_i386.
* ld-i386/pcrel8.d: Likewise.
* ld-i386/tlsbindesc.dd: New.
* ld-i386/tlsbindesc.rd: New.
* ld-i386/tlsbindesc.s: New.
* ld-i386/tlsbindesc.sd: New.
* ld-i386/tlsbindesc.td: New.
* ld-i386/tlsdesc.dd: New.
* ld-i386/tlsdesc.rd: New.
* ld-i386/tlsdesc.s: New.
* ld-i386/tlsdesc.sd: New.
* ld-i386/tlsdesc.td: New.
* ld-i386/tlsgdesc.dd: New.
* ld-i386/tlsgdesc.rd: New.
* ld-i386/tlsgdesc.s: New.
* ld-x86-64/x86-64.exp: Run new tests.
* ld-x86-64/tlsbindesc.dd: New.
* ld-x86-64/tlsbindesc.rd: New.
* ld-x86-64/tlsbindesc.s: New.
* ld-x86-64/tlsbindesc.sd: New.
* ld-x86-64/tlsbindesc.td: New.
* ld-x86-64/tlsdesc.dd: New.
* ld-x86-64/tlsdesc.pd: New.
* ld-x86-64/tlsdesc.rd: New.
* ld-x86-64/tlsdesc.s: New.
* ld-x86-64/tlsdesc.sd: New.
* ld-x86-64/tlsdesc.td: New.
* ld-x86-64/tlsgdesc.dd: New.
* ld-x86-64/tlsgdesc.rd: New.
* ld-x86-64/tlsgdesc.s: New.
This commit is contained in:
Alexandre Oliva 2006-01-18 21:07:47 +00:00
parent f18076d44e
commit 5ec1b87a26
4 changed files with 28 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/elf/ChangeLog
View File

@ -1,3 +1,12 @@
2006-01-18 Alexandre Oliva <aoliva@redhat.com>
Introduce TLS descriptors for i386 and x86_64.
* common.h (DT_TLSDESC_GOT, DT_TLSDESC_PLT): New.
* i386.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL, R_386_TLS_DESC):
New.
* x86-64.h (R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL,
R_X86_64_TLSDESC): New.
2006-01-09 Mike Frysinger <vapier@gentoo.org>:
* common.h (EM_ALTERA_NIOS2, EM_NIOS32) Define.

4
include/elf/common.h
View File

@ -1,6 +1,6 @@
/* ELF support for BFD.
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2001, 2002, 2003, 2004
2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
Written by Fred Fish @ Cygnus Support, from information published
@ -576,6 +576,8 @@
#define DT_VALRNGHI 0x6ffffdff
#define DT_ADDRRNGLO 0x6ffffe00
#define DT_TLSDESC_PLT 0x6ffffef6
#define DT_TLSDESC_GOT 0x6ffffef7
#define DT_GNU_CONFLICT 0x6ffffef8
#define DT_GNU_LIBLIST 0x6ffffef9
#define DT_CONFIG 0x6ffffefa

7
include/elf/i386.h
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@ -1,5 +1,6 @@
/* ix86 ELF support for BFD.
Copyright 1998, 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
Copyright 1998, 1999, 2000, 2002, 2004, 2005, 2006
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@ -61,6 +62,10 @@ START_RELOC_NUMBERS (elf_i386_reloc_type)
RELOC_NUMBER (R_386_TLS_DTPMOD32, 35)
RELOC_NUMBER (R_386_TLS_DTPOFF32, 36)
RELOC_NUMBER (R_386_TLS_TPOFF32, 37)
/* 38 */
RELOC_NUMBER (R_386_TLS_GOTDESC, 39)
RELOC_NUMBER (R_386_TLS_DESC_CALL,40)
RELOC_NUMBER (R_386_TLS_DESC, 41)
/* Used by Intel. */
RELOC_NUMBER (R_386_USED_BY_INTEL_200, 200)

11
include/elf/x86-64.h
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@ -1,5 +1,6 @@
/* x86_64 ELF support for BFD.
Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006
Free Software Foundation, Inc.
Contributed by Jan Hubicka <jh@suse.cz>
This file is part of BFD, the Binary File Descriptor library.
@ -53,6 +54,14 @@ START_RELOC_NUMBERS (elf_x86_64_reloc_type)
RELOC_NUMBER (R_X86_64_GOTOFF64, 25) /* 64 bit offset to GOT */
RELOC_NUMBER (R_X86_64_GOTPC32, 26) /* 32 bit signed pc relative
offset to GOT */
/* 27 .. 33 */
RELOC_NUMBER (R_X86_64_GOTPC32_TLSDESC, 34)
/* 32 bit signed pc relative
offset to TLS descriptor
in the GOT. */
RELOC_NUMBER (R_X86_64_TLSDESC_CALL, 35) /* Relaxable call through TLS
descriptor. */
RELOC_NUMBER (R_X86_64_TLSDESC, 36) /* 2x64-bit TLS descriptor. */
RELOC_NUMBER (R_X86_64_GNU_VTINHERIT, 250) /* GNU C++ hack */
RELOC_NUMBER (R_X86_64_GNU_VTENTRY, 251) /* GNU C++ hack */
END_RELOC_NUMBERS (R_X86_64_max)