e41b3a1379
include/
* bfdlink.h (struct bfd_link_info): Add no_ld_generated_unwind_info
option.
ld/
* emultempl/elf32.em (OPTION_LD_GENERATED_UNWIND_INFO,
OPTION_NO_LD_GENERATED_UNWIND_INFO): Define.
(gld${EMULATION_NAME}_handle_option): Handle
--ld-generated-unwind-info and --no-ld-generated-unwind-info.
* ld.texinfo (--ld-generated-unwind-info,
--no-ld-generated-unwind-info): Document.
bfd/
* elf-eh-frame.c (_bfd_elf_parse_eh_frame): Allow no relocations
at all for linker created .eh_frame sections.
(_bfd_elf_discard_section_eh_frame): Handle linker created
.eh_frame sections with no relocations.
* elf64-x86-64.c: Include dwarf2.h.
(elf_x86_64_eh_frame_plt): New variable.
(PLT_CIE_LENGTH, PLT_FDE_LENGTH, PLT_FDE_START_OFFSET,
PLT_FDE_LEN_OFFSET): Define.
(struct elf_x86_64_link_hash_table): Add plt_eh_frame field.
(elf_x86_64_create_dynamic_sections): Create and fill in
.eh_frame section for .plt section.
(elf_x86_64_size_dynamic_sections): Write .plt section size
into .eh_frame FDE covering .plt section.
(elf_x86_64_finish_dynamic_sections): Write .plt section
start into .eh_frame FDE covering .plt section. Call
_bfd_elf_write_section_eh_frame on htab->plt_eh_frame section.
(elf_backend_plt_alignment): Define to 4.
* elf32-i386.c: Include dwarf2.h.
(elf_i386_eh_frame_plt): New variable.
(PLT_CIE_LENGTH, PLT_FDE_LENGTH, PLT_FDE_START_OFFSET,
PLT_FDE_LEN_OFFSET): Define.
(struct elf_i386_link_hash_table): Add plt_eh_frame field.
(elf_i386_create_dynamic_sections): Create and fill in
.eh_frame section for .plt section.
(elf_i386_size_dynamic_sections): Write .plt section size
into .eh_frame FDE covering .plt section.
(elf_i386_finish_dynamic_sections): Write .plt section
start into .eh_frame FDE covering .plt section. Call
_bfd_elf_write_section_eh_frame on htab->plt_eh_frame section.
(elf_backend_plt_alignment): Define to 4.
ld/testsuite/
* ld-x86-64/x86-64.exp: Link some testcases with
--no-ld-generated-unwind-info.
* ld-x86-64/tlsbin.rd: Add --no-ld-generated-unwind-info to ld
comment.
* ld-x86-64/tlsdesc.dd: Likewise.
* ld-x86-64/tlspic.dd: Likewise.
* ld-x86-64/tlsdesc.sd: Likewise.
* ld-x86-64/tlspic.rd: Likewise.
* ld-x86-64/tlsbindesc.rd: Likewise.
* ld-x86-64/tlsbindesc.sd: Likewise.
* ld-x86-64/tlsbin.td: Likewise.
* ld-x86-64/tlsdesc.pd: Likewise.
* ld-x86-64/tlsdesc.td: Likewise.
* ld-x86-64/tlsbindesc.dd: Likewise.
* ld-x86-64/tlsbin.dd: Likewise.
* ld-x86-64/tlsgdesc.rd: Likewise.
* ld-x86-64/tlspic.sd: Likewise.
* ld-x86-64/tlsbindesc.td: Likewise.
* ld-x86-64/tlspic.td: Likewise.
* ld-x86-64/tlsbin.sd: Likewise.
* ld-x86-64/ilp32-4.d: Likewise.
* ld-x86-64/tlsgdesc.dd: Add --no-ld-generated-unwind-info to ld
comment. Adjust.
* ld-x86-64/tlsdesc.rd: Likewise.
* ld-x86-64/tlsgd6.dd: Adjust.
* ld-x86-64/tlsgd5.dd: Likewise.
* ld-i386/i386.exp: Link some testcases with
--no-ld-generated-unwind-info.
* ld-i386/tlsbin.rd: Add --no-ld-generated-unwind-info to ld
comment..
* ld-i386/tlsdesc.dd: Likewise.
* ld-i386/tlspic.dd: Likewise.
* ld-i386/tlsdesc.sd: Likewise.
* ld-i386/tlsgdesc.dd: Likewise.
* ld-i386/tlsnopic.sd: Likewise.
* ld-i386/tlspic.rd: Likewise.
* ld-i386/tlsdesc.rd: Likewise.
* ld-i386/tlsbindesc.rd: Likewise.
* ld-i386/tlsbindesc.sd: Likewise.
* ld-i386/tlsbin.td: Likewise.
* ld-i386/tlsdesc.td: Likewise.
* ld-i386/tlsnopic.dd: Likewise.
* ld-i386/tlsbindesc.dd: Likewise.
* ld-i386/tlsbin.dd: Likewise.
* ld-i386/tlsgdesc.rd: Likewise.
* ld-i386/tlspic.sd: Likewise.
* ld-i386/tlsnopic.rd: Likewise.
* ld-i386/tlsbindesc.td: Likewise.
* ld-i386/tlspic.td: Likewise.
* ld-i386/tlsbin.sd: Likewise.
200 lines
6.9 KiB
Text
200 lines
6.9 KiB
Text
#source: tlsdesc.s
|
|
#source: tlspic2.s
|
|
#as: --64
|
|
#ld: -shared -melf_x86_64 --no-ld-generated-unwind-info
|
|
#objdump: -drj.text
|
|
#target: x86_64-*-*
|
|
|
|
.*: +file format elf64-x86-64
|
|
|
|
Disassembly of section .text:
|
|
|
|
0+[0-9a-f]+ <fn1>:
|
|
+[0-9a-f]+: 55[ ]+push %rbp
|
|
+[0-9a-f]+: 48 89 e5[ ]+mov %rsp,%rbp
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD
|
|
+[0-9a-f]+: 48 8d 05 89 03 20 00[ ]+lea 0x200389\(%rip\),%rax +# 201398 <.*>
|
|
# -> R_X86_64_TLSDESC sg1
|
|
+[0-9a-f]+: ff 10[ ]+callq \*\(%rax\)
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD -> IE because variable is referenced through IE too
|
|
+[0-9a-f]+: 48 8b 05 1c 03 20 00[ ]+mov 0x20031c\(%rip\),%rax +# 201338 <.*>
|
|
# -> R_X86_64_TPOFF64 sg2
|
|
+[0-9a-f]+: 66 90[ ]+xchg %ax,%ax
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD against local variable
|
|
+[0-9a-f]+: 48 8d 05 3f 03 20 00[ ]+lea 0x20033f\(%rip\),%rax +# 201368 <.*>
|
|
# -> R_X86_64_TLSDESC [0 0x2000000000000000]
|
|
+[0-9a-f]+: ff 10[ ]+callq \*\(%rax\)
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD -> IE against local variable referenced through IE too
|
|
+[0-9a-f]+: 48 8b 05 d2 02 20 00[ ]+mov 0x2002d2\(%rip\),%rax +# 201308 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x24
|
|
+[0-9a-f]+: 66 90[ ]+xchg %ax,%ax
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD against hidden and local variable
|
|
+[0-9a-f]+: 48 8d 05 65 03 20 00[ ]+lea 0x200365\(%rip\),%rax +# 2013a8 <.*>
|
|
# -> R_X86_64_TLSDESC [0 0x4000000000000000]
|
|
+[0-9a-f]+: ff 10[ ]+callq \*\(%rax\)
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD -> IE against hidden and local variable referenced through IE too
|
|
+[0-9a-f]+: 48 8b 05 f0 02 20 00[ ]+mov 0x2002f0\(%rip\),%rax +# 201340 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x44
|
|
+[0-9a-f]+: 66 90[ ]+xchg %ax,%ax
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD against hidden but not local variable
|
|
+[0-9a-f]+: 48 8d 05 1b 03 20 00[ ]+lea 0x20031b\(%rip\),%rax +# 201378 <.*>
|
|
# -> R_X86_64_TLSDESC [0 0x6000000000000000]
|
|
+[0-9a-f]+: ff 10[ ]+callq \*\(%rax\)
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# GD -> IE against hidden but not local variable referenced through IE too
|
|
+[0-9a-f]+: 48 8b 05 ae 02 20 00[ ]+mov 0x2002ae\(%rip\),%rax +# 201318 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x64
|
|
+[0-9a-f]+: 66 90[ ]+xchg %ax,%ax
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# LD
|
|
+[0-9a-f]+: 48 8d 05 11 03 20 00[ ]+lea 0x200311\(%rip\),%rax +# 201388 <.*>
|
|
# -> R_X86_64_TLSDESC [0 0x000000000000000]
|
|
+[0-9a-f]+: ff 10[ ]+callq \*\(%rax\)
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 48 8d 90 20 00 00 00[ ]+lea 0x20\(%rax\),%rdx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 4c 8d 88 26 00 00 00[ ]+lea 0x26\(%rax\),%r9
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# LD against hidden and local variables
|
|
+[0-9a-f]+: 48 8d 90 40 00 00 00[ ]+lea 0x40\(%rax\),%rdx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 48 8d 88 47 00 00 00[ ]+lea 0x47\(%rax\),%rcx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# LD against hidden but not local variables
|
|
+[0-9a-f]+: 4c 8d a0 60 00 00 00[ ]+lea 0x60\(%rax\),%r12
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 48 8d 88 65 00 00 00[ ]+lea 0x65\(%rax\),%rcx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against global var
|
|
+[0-9a-f]+: 64 48 8b 0c 25 00 00[ ]+mov %fs:0x0,%rcx
|
|
+[0-9a-f]+: 00 00 *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 48 03 0d 71 02 20 00[ ]+add 0x200271\(%rip\),%rcx +# 201338 <.*>
|
|
# -> R_X86_64_TPOFF64 sg2
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against local var
|
|
+[0-9a-f]+: 64 4c 8b 34 25 00 00[ ]+mov %fs:0x0,%r14
|
|
+[0-9a-f]+: 00 00 *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 4c 03 35 2b 02 20 00[ ]+add 0x20022b\(%rip\),%r14 +# 201308 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x24
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against hidden and local var
|
|
+[0-9a-f]+: 64 48 8b 0c 25 00 00[ ]+mov %fs:0x0,%rcx
|
|
+[0-9a-f]+: 00 00 *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 48 03 0d 4d 02 20 00[ ]+add 0x20024d\(%rip\),%rcx +# 201340 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x44
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against hidden but not local var
|
|
+[0-9a-f]+: 64 48 8b 0c 25 00 00[ ]+mov %fs:0x0,%rcx
|
|
+[0-9a-f]+: 00 00 *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 48 03 0d 0f 02 20 00[ ]+add 0x20020f\(%rip\),%rcx +# 201318 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x64
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# Direct access through %fs
|
|
# IE against global var
|
|
+[0-9a-f]+: 48 8b 0d 0c 02 20 00[ ]+mov 0x20020c\(%rip\),%rcx +# 201320 <.*>
|
|
# -> R_X86_64_TPOFF64 sg5
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 64 48 8b 11[ ]+mov %fs:\(%rcx\),%rdx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against local var
|
|
+[0-9a-f]+: 4c 8b 15 eb 01 20 00[ ]+mov 0x2001eb\(%rip\),%r10 +# 201310 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x30
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 64 4d 8b 22[ ]+mov %fs:\(%r10\),%r12
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against hidden and local var
|
|
+[0-9a-f]+: 48 8b 15 f2 01 20 00[ ]+mov 0x2001f2\(%rip\),%rdx +# 201328 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x50
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 64 48 8b 12[ ]+mov %fs:\(%rdx\),%rdx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
# IE against hidden but not local var
|
|
+[0-9a-f]+: 48 8b 0d e9 01 20 00[ ]+mov 0x2001e9\(%rip\),%rcx +# 201330 <.*>
|
|
# -> R_X86_64_TPOFF64 *ABS*+0x70
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 64 48 8b 11[ ]+mov %fs:\(%rcx\),%rdx
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: 90[ ]+nop *
|
|
+[0-9a-f]+: c9[ ]+leaveq *
|
|
+[0-9a-f]+: c3[ ]+retq *
|
|
+[0-9a-f]+: 90[ ]+nop *
|