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binutils-gdb/ld/testsuite/ld-i386/tlsbindesc.s

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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.
2006-01-19 05:07:51 +08:00
/* Force .got aligned to 4K, so it very likely gets at 0x804a100
(0x60 bytes .tdata and 0xa0 bytes .dynamic) */
.section ".tdata", "awT", @progbits
.balign 4096
.globl sg1, sg2, sg3, sg4, sg5, sg6, sg7, sg8
.globl sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
.hidden sh1, sh2, sh3, sh4, sh5, sh6, sh7, sh8
sg1: .long 17
sg2: .long 18
sg3: .long 19
sg4: .long 20
sg5: .long 21
sg6: .long 22
sg7: .long 23
sg8: .long 24
sl1: .long 65
sl2: .long 66
sl3: .long 67
sl4: .long 68
sl5: .long 69
sl6: .long 70
sl7: .long 71
sl8: .long 72
sh1: .long 257
sh2: .long 258
sh3: .long 259
sh4: .long 260
sh5: .long 261
sh6: .long 262
sh7: .long 263
sh8: .long 264
/* Force .text aligned to 4K, so it very likely gets at 0x8049000. */
.text
.balign 4096
.globl fn2
.type fn2,@function
fn2:
pushl %ebp
movl %esp, %ebp
pushl %ebx
pushl %eax
call 1f
1: popl %ebx
addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
nop;nop;nop;nop
/* GD -> IE because variable is not defined in executable */
leal sG1@tlsdesc(%ebx), %eax
call *sG1@tlscall(%eax)
nop;nop;nop;nop
/* GD -> IE because variable is not defined in executable where
the variable is referenced through @gottpoff too */
leal sG2@tlsdesc(%ebx), %eax
call *sG2@tlscall(%eax)
nop;nop;nop;nop
/* GD -> IE because variable is not defined in executable where
the variable is referenced through @gotntpoff too */
leal sG3@tlsdesc(%ebx), %eax
call *sG3@tlscall(%eax)
nop;nop;nop;nop
/* GD -> IE because variable is not defined in executable where
the variable is referenced through @gottpoff and @gotntpoff too */
leal sG4@tlsdesc(%ebx), %eax
call *sG4@tlscall(%eax)
nop;nop;nop;nop
/* GD -> LE with global variable defined in executable */
leal sg1@tlsdesc(%ebx), %eax
call *sg1@tlscall(%eax)
nop;nop;nop;nop
/* GD -> LE with local variable defined in executable */
leal sl1@tlsdesc(%ebx), %eax
call *sl1@tlscall(%eax)
nop;nop;nop;nop
/* GD -> LE with hidden variable defined in executable */
leal sh1@tlsdesc(%ebx), %eax
call *sh1@tlscall(%eax)
nop;nop;nop;nop
/* LD -> LE */
leal _TLS_MODULE_BASE_@tlsdesc(%ebx), %eax
call *_TLS_MODULE_BASE_@tlscall(%eax)
nop;nop
leal sl1@dtpoff(%eax), %edx
nop;nop
leal sl2@dtpoff(%eax), %ecx
nop;nop;nop;nop
/* LD -> LE against hidden variables */
leal _TLS_MODULE_BASE_@tlsdesc(%ebx), %eax
call *_TLS_MODULE_BASE_@tlscall(%eax)
nop;nop
leal sh1@dtpoff(%eax), %edx
nop;nop
leal sh2@dtpoff(%eax), %ecx
nop;nop;nop;nop
/* @gottpoff IE against global var */
movl %gs:0, %ecx
nop;nop
subl sG2@gottpoff(%ebx), %ecx
nop;nop;nop;nop
/* @gottpoff IE against global var */
movl %gs:0, %eax
nop;nop
subl sG4@gottpoff(%ebx), %eax
nop;nop;nop;nop
/* @gotntpoff IE against global var */
movl %gs:0, %ecx
nop;nop
addl sG3@gotntpoff(%ebx), %ecx
nop;nop;nop;nop
/* @gotntpoff IE against global var */
movl %gs:0, %eax
nop;nop
addl sG4@gotntpoff(%ebx), %eax
nop;nop;nop;nop
/* @gottpoff IE -> LE against global var defined in exec */
movl %gs:0, %ecx
nop;nop
subl sg1@gottpoff(%ebx), %ecx
nop;nop;nop;nop
/* @gotntpoff IE -> LE against local var */
movl %gs:0, %ecx
nop;nop
addl sl1@gotntpoff(%ebx), %eax
nop;nop;nop;nop
/* @gottpoff IE -> LE against hidden var */
movl %gs:0, %ecx
nop;nop
subl sh1@gottpoff(%ebx), %ecx
nop;nop;nop;nop
/* Direct access through %gs */
/* @gotntpoff IE against global var */
movl sG5@gotntpoff(%ebx), %ecx
nop;nop
movl %gs:(%ecx), %edx
nop;nop;nop;nop
/* @gotntpoff IE->LE against local var */
movl sl5@gotntpoff(%ebx), %eax
nop;nop
movl %gs:(%eax), %edx
nop;nop;nop;nop
/* @gotntpoff IE->LE against hidden var */
movl sh5@gotntpoff(%ebx), %edx
nop;nop
movl %gs:(%edx), %edx
nop;nop;nop;nop
movl -4(%ebp), %ebx
leave
ret
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