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.

1 files changed, 107 insertions, 0 deletions

diff --git a/ld/testsuite/ld-x86-64/tlsgdesc.rd b/ld/testsuite/ld-x86-64/tlsgdesc.rd
new file mode 100644
index 0000000..2f7621b
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/tlsgdesc.rd
@@ -0,0 +1,107 @@
+#source: tlsgdesc.s
+#as: --64
+#ld: -shared -melf64_x86_64
+#readelf: -WSsrl
+#target: x86_64-*-*
+
+There are [0-9]+ section headers, starting at offset 0x.*:
+
+Section Headers:
+  \[Nr\] Name +Type +Address +Off +Size +ES Flg Lk Inf Al
+  \[ 0\] +NULL +0+ 0+ 0+ 0+ +0 +0 +0
+  \[ 1\] \.hash +.*
+  \[ 2\] \.dynsym +.*
+  \[ 3\] \.dynstr +.*
+  \[ 4\] \.rela.dyn +.*
+  \[ 5\] \.rela.plt +.*
+  \[ 6\] \.plt +.*
+  \[ 7\] \.text +.*
+  \[ 8\] \.dynamic +.*
+  \[ 9\] \.got +.*
+  \[10\] \.got.plt +.*
+  \[11\] \.shstrtab +.*
+  \[12\] \.symtab +.*
+  \[13\] \.strtab +.*
+Key to Flags:
+.*
+.*
+.*
+
+Elf file type is DYN \(Shared object file\)
+Entry point 0x[0-9a-f]+
+There are [0-9]+ program headers, starting at offset [0-9]+
+
+Program Headers:
+  Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align
+  LOAD.*
+  LOAD.*
+  DYNAMIC.*
+
+ Section to Segment mapping:
+  Segment Sections...
+   00 +.hash .dynsym .dynstr .rela.dyn .rela.plt .plt .text *
+   01 +.dynamic .got .got.plt *
+   02 +.dynamic *
+
+Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 8 entries:
+ +Offset +Info +Type +Symbol's Value  Symbol's Name \+ Addend
+[0-9a-f]+  0+200000012 R_X86_64_TPOFF64 +0+ sG3 \+ 0
+[0-9a-f]+  0+300000012 R_X86_64_TPOFF64 +0+ sG5 \+ 0
+[0-9a-f]+  0+400000010 R_X86_64_DTPMOD64 +0+ sG2 \+ 0
+[0-9a-f]+  0+400000011 R_X86_64_DTPOFF64 +0+ sG2 \+ 0
+[0-9a-f]+  0+500000012 R_X86_64_TPOFF64 +0+ sG4 \+ 0
+[0-9a-f]+  0+800000012 R_X86_64_TPOFF64 +0+ sG6 \+ 0
+[0-9a-f]+  0+a00000010 R_X86_64_DTPMOD64 +0+ sG1 \+ 0
+[0-9a-f]+  0+a00000011 R_X86_64_DTPOFF64 +0+ sG1 \+ 0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 3 entries:
+ +Offset +Info +Type +Symbol's Value  Symbol's Name \+ Addend
+[0-9a-f]+  0+600000007 R_X86_64_JUMP_SLOT +0+ __tls_get_addr \+ 0
+[0-9a-f]+  0+a00000024 R_X86_64_TLSDESC +0+ sG1 \+ 0
+[0-9a-f]+  0+400000024 R_X86_64_TLSDESC +0+ sG2 \+ 0
+
+Symbol table '.dynsym' contains 13 entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +[0-9]+: 0+ +0 NOTYPE  LOCAL  DEFAULT  UND *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +7 *
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG3
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG5
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG2
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG4
+ +[0-9]+: 0+ +0 NOTYPE  GLOBAL DEFAULT  UND __tls_get_addr
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE  GLOBAL DEFAULT  ABS __bss_start
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG6
+ +[0-9]+: [0-9a-f]+ +0 FUNC +GLOBAL DEFAULT +7 fc1
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG1
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE  GLOBAL DEFAULT  ABS _edata
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE  GLOBAL DEFAULT  ABS _end
+
+Symbol table '.symtab' contains 27 entries:
+ +Num: +Value +Size Type +Bind +Vis +Ndx Name
+ +[0-9]+: 0+ +0 NOTYPE  LOCAL  DEFAULT  UND *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +1 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +2 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +3 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +4 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +5 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +6 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +7 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +8 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +9 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +10 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +11 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +12 *
+ +[0-9]+: [0-9a-f]+ +0 SECTION LOCAL  DEFAULT +13 *
+ +[0-9]+: [0-9a-f]+ +0 OBJECT  LOCAL  HIDDEN  ABS _DYNAMIC
+ +[0-9]+: [0-9a-f]+ +0 OBJECT  LOCAL  HIDDEN  ABS _GLOBAL_OFFSET_TABLE_
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG3
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG5
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG2
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG4
+ +[0-9]+: 0+ +0 NOTYPE  GLOBAL DEFAULT  UND __tls_get_addr
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE  GLOBAL DEFAULT  ABS __bss_start
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG6
+ +[0-9]+: [0-9a-f]+ +0 FUNC +GLOBAL DEFAULT +7 fc1
+ +[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT  UND sG1
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE  GLOBAL DEFAULT  ABS _edata
+ +[0-9]+: [0-9a-f]+ +0 NOTYPE  GLOBAL DEFAULT  ABS _end