67a4f2b710
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.
107 lines
4 KiB
R
107 lines
4 KiB
R
#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
|