include/elf/ChangeLog:

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.

2 files changed, 51 insertions, 4 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 977f5a1..e93cece 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,16 @@
+2006-01-18  Alexandre Oliva  <aoliva@redhat.com>
+
+	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.
+
 2006-01-11  Nick Clifton  <nickc@redhat.com>
 
 	Fixes for building on 64-bit hosts:
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index f9804e0..337149e 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -1,6 +1,6 @@
 /* i386.c -- Assemble code for the Intel 80386
    Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005
+   2000, 2001, 2002, 2003, 2004, 2005, 2006
    Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
@@ -1345,6 +1345,8 @@ tc_i386_fix_adjustable (fixP)
       || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE
       || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32
       || fixP->fx_r_type == BFD_RELOC_386_TLS_LE
+      || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC
+      || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL
       || fixP->fx_r_type == BFD_RELOC_X86_64_PLT32
       || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32
       || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL
@@ -1356,6 +1358,8 @@ tc_i386_fix_adjustable (fixP)
       || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32
       || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64
       || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64
+      || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC
+      || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL
       || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
       || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
     return 0;
@@ -2196,7 +2200,14 @@ optimize_disp ()
 		&& fits_in_signed_byte (disp))
 	      i.types[op] |= Disp8;
 	  }
-	else
+	else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL
+		 || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)
+	  {
+	    fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0,
+			 i.op[op].disps, 0, i.reloc[op]);
+	    i.types[op] &= ~Disp;
+	  }
+ 	else
 	  /* We only support 64bit displacement on constants.  */
 	  i.types[op] &= ~Disp64;
       }
@@ -3157,7 +3168,13 @@ build_modrm_byte ()
 		  if ((i.index_reg->reg_flags & RegRex) != 0)
 		    i.rex |= REX_EXTY;
 		}
-	      i.rm.mode = mode_from_disp_size (i.types[op]);
+
+	      if (i.disp_operands
+		  && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL
+		      || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL))
+		i.rm.mode = 0;
+	      else
+		i.rm.mode = mode_from_disp_size (i.types[op]);
 	    }
 
 	  if (fake_zero_displacement)
@@ -3856,7 +3873,9 @@ lex_got (enum bfd_reloc_code_real *reloc,
     { "DTPOFF",   { BFD_RELOC_386_TLS_LDO_32, BFD_RELOC_X86_64_DTPOFF32 }, Imm32|Imm32S|Imm64|Disp32|Disp64 },
     { "GOTNTPOFF",{ BFD_RELOC_386_TLS_GOTIE,  0                         }, 0 },
     { "INDNTPOFF",{ BFD_RELOC_386_TLS_IE,     0                         }, 0 },
-    { "GOT",      { BFD_RELOC_386_GOT32,      BFD_RELOC_X86_64_GOT32    }, Imm32|Imm32S|Disp32 }
+    { "GOT",      { BFD_RELOC_386_GOT32,      BFD_RELOC_X86_64_GOT32    }, Imm32|Imm32S|Disp32 },
+    { "TLSDESC",  { BFD_RELOC_386_TLS_GOTDESC, BFD_RELOC_X86_64_GOTPC32_TLSDESC }, Imm32|Imm32S|Disp32 },
+    { "TLSCALL",  { BFD_RELOC_386_TLS_DESC_CALL, BFD_RELOC_X86_64_TLSDESC_CALL }, Imm32|Imm32S|Disp32 }
   };
   char *cp;
   unsigned int j;
@@ -5063,9 +5082,11 @@ md_apply_fix (fixP, valP, seg)
       case BFD_RELOC_386_TLS_IE_32:
       case BFD_RELOC_386_TLS_IE:
       case BFD_RELOC_386_TLS_GOTIE:
+      case BFD_RELOC_386_TLS_GOTDESC:
       case BFD_RELOC_X86_64_TLSGD:
       case BFD_RELOC_X86_64_TLSLD:
       case BFD_RELOC_X86_64_GOTTPOFF:
+      case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
 	value = 0; /* Fully resolved at runtime.  No addend.  */
 	/* Fallthrough */
       case BFD_RELOC_386_TLS_LE:
@@ -5078,6 +5099,13 @@ md_apply_fix (fixP, valP, seg)
 	S_SET_THREAD_LOCAL (fixP->fx_addsy);
 	break;
 
+      case BFD_RELOC_386_TLS_DESC_CALL:
+      case BFD_RELOC_X86_64_TLSDESC_CALL:
+	value = 0; /* Fully resolved at runtime.  No addend.  */
+	S_SET_THREAD_LOCAL (fixP->fx_addsy);
+	fixP->fx_done = 0;
+	return;
+
       case BFD_RELOC_386_GOT32:
       case BFD_RELOC_X86_64_GOT32:
 	value = 0; /* Fully resolved at runtime.  No addend.  */
@@ -5655,6 +5683,8 @@ tc_gen_reloc (section, fixp)
     case BFD_RELOC_386_TLS_GOTIE:
     case BFD_RELOC_386_TLS_LE_32:
     case BFD_RELOC_386_TLS_LE:
+    case BFD_RELOC_386_TLS_GOTDESC:
+    case BFD_RELOC_386_TLS_DESC_CALL:
     case BFD_RELOC_X86_64_TLSGD:
     case BFD_RELOC_X86_64_TLSLD:
     case BFD_RELOC_X86_64_DTPOFF32:
@@ -5664,6 +5694,8 @@ tc_gen_reloc (section, fixp)
     case BFD_RELOC_X86_64_TPOFF64:
     case BFD_RELOC_X86_64_GOTOFF64:
     case BFD_RELOC_X86_64_GOTPC32:
+    case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
+    case BFD_RELOC_X86_64_TLSDESC_CALL:
     case BFD_RELOC_RVA:
     case BFD_RELOC_VTABLE_ENTRY:
     case BFD_RELOC_VTABLE_INHERIT:
@@ -5760,6 +5792,8 @@ tc_gen_reloc (section, fixp)
 	  case BFD_RELOC_X86_64_TLSGD:
 	  case BFD_RELOC_X86_64_TLSLD:
 	  case BFD_RELOC_X86_64_GOTTPOFF:
+	  case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
+	  case BFD_RELOC_X86_64_TLSDESC_CALL:
 	    rel->addend = fixp->fx_offset - fixp->fx_size;
 	    break;
 	  default: