Introduce TLS descriptors for i386 and x86_64.
* include/inline-hashtab.h: New file, copied from 2005's
libiberty, with fix for memory leak imported afterwards by
Glauber de Oliveira Costa.
* elf/tlsdeschtab.h: New file.
* elf/dl-reloc.c (_dl_try_allocate_static_tls): Extract from...
(_dl_allocate_static_tls): ... here. Rearrange failure path.
(CHECK_STATIC_TLS): Move to...
* elf/dynamic-link.h: ... this file.
(TRY_STATIC_TLS): New macro.
* elf/dl-conflict.c (CHECK_STATIC_TLS, TRY_STATIC_TLS): Override.
* elf/elf.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL,
R_386_TLS_DESC): Define.
(R_X86_64_PC64, R_X86_GOTOFF64, R_X86_64_GOTPC32): Merge from
binutils.
(R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL,
R_X86_64_TLSDESC): Define.
(R_386_NUM, R_X86_64_NUM): Adjust.
* sysdeps/i386/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/i386/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/i386/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_type_class): Mark R_386_TLS_DESC as PLT class.
(elf_machine_rel): Handle R_386_TLS_DESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
(elf_machine_lazy_rela): Likewise.
* sysdeps/i386/dl-tls.h (struct dl_tls_index): Name it.
* sysdeps/i386/dl-tlsdesc.S: New file.
* sysdeps/i386/dl-tlsdesc.h: New file.
* sysdeps/i386/tlsdesc.c: New file.
* sysdeps/i386/tlsdesc.sym: New file.
* sysdeps/i386/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table.
* sysdeps/x86_64/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/x86_64/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/x86_64/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_runtime_setup): Set up lazy TLSDESC GOT entry.
(elf_machine_type_class): Mark R_X86_64_TLSDESC as PLT class.
(elf_machine_rel): Handle R_X86_64_TLSDESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
* sysdeps/x86_64/dl-tls.h (struct dl_tls_index): Name it.
(__tls_get_addr): Do not declare for non-shared compiles.
* sysdeps/x86_64/dl-tlsdesc.S: New file.
* sysdeps/x86_64/dl-tlsdesc.h: New file.
* sysdeps/x86_64/tlsdesc.c: New file.
* sysdeps/x86_64/tlsdesc.sym: New file.
* sysdeps/x86_64/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table for both 32- and 64-bit structs.
2008-05-13 05:41:30 +00:00
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/* Thread-local storage descriptor handling in the ELF dynamic linker.
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x86_64 version.
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Copyright (C) 2005, 2008 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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Introduce TLS descriptors for i386 and x86_64.
* include/inline-hashtab.h: New file, copied from 2005's
libiberty, with fix for memory leak imported afterwards by
Glauber de Oliveira Costa.
* elf/tlsdeschtab.h: New file.
* elf/dl-reloc.c (_dl_try_allocate_static_tls): Extract from...
(_dl_allocate_static_tls): ... here. Rearrange failure path.
(CHECK_STATIC_TLS): Move to...
* elf/dynamic-link.h: ... this file.
(TRY_STATIC_TLS): New macro.
* elf/dl-conflict.c (CHECK_STATIC_TLS, TRY_STATIC_TLS): Override.
* elf/elf.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL,
R_386_TLS_DESC): Define.
(R_X86_64_PC64, R_X86_GOTOFF64, R_X86_64_GOTPC32): Merge from
binutils.
(R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL,
R_X86_64_TLSDESC): Define.
(R_386_NUM, R_X86_64_NUM): Adjust.
* sysdeps/i386/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/i386/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/i386/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_type_class): Mark R_386_TLS_DESC as PLT class.
(elf_machine_rel): Handle R_386_TLS_DESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
(elf_machine_lazy_rela): Likewise.
* sysdeps/i386/dl-tls.h (struct dl_tls_index): Name it.
* sysdeps/i386/dl-tlsdesc.S: New file.
* sysdeps/i386/dl-tlsdesc.h: New file.
* sysdeps/i386/tlsdesc.c: New file.
* sysdeps/i386/tlsdesc.sym: New file.
* sysdeps/i386/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table.
* sysdeps/x86_64/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/x86_64/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/x86_64/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_runtime_setup): Set up lazy TLSDESC GOT entry.
(elf_machine_type_class): Mark R_X86_64_TLSDESC as PLT class.
(elf_machine_rel): Handle R_X86_64_TLSDESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
* sysdeps/x86_64/dl-tls.h (struct dl_tls_index): Name it.
(__tls_get_addr): Do not declare for non-shared compiles.
* sysdeps/x86_64/dl-tlsdesc.S: New file.
* sysdeps/x86_64/dl-tlsdesc.h: New file.
* sysdeps/x86_64/tlsdesc.c: New file.
* sysdeps/x86_64/tlsdesc.sym: New file.
* sysdeps/x86_64/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table for both 32- and 64-bit structs.
2008-05-13 05:41:30 +00:00
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#ifndef _X86_64_DL_TLSDESC_H
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# define _X86_64_DL_TLSDESC_H 1
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/* Use this to access DT_TLSDESC_PLT and DT_TLSDESC_GOT. */
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#ifndef ADDRIDX
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# define ADDRIDX(tag) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGNUM \
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+ DT_EXTRANUM + DT_VALNUM + DT_ADDRTAGIDX (tag))
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#endif
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/* Type used to represent a TLS descriptor in the GOT. */
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struct tlsdesc
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{
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2012-03-23 18:06:57 +00:00
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/* Anonymous union is used here to ensure that GOT entry slot is always
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8 bytes for both x32 and x86-64. */
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union
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{
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ptrdiff_t (*entry) (struct tlsdesc *on_rax);
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uint64_t entry_slot;
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};
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union
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{
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void *arg;
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uint64_t arg_slot;
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};
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Introduce TLS descriptors for i386 and x86_64.
* include/inline-hashtab.h: New file, copied from 2005's
libiberty, with fix for memory leak imported afterwards by
Glauber de Oliveira Costa.
* elf/tlsdeschtab.h: New file.
* elf/dl-reloc.c (_dl_try_allocate_static_tls): Extract from...
(_dl_allocate_static_tls): ... here. Rearrange failure path.
(CHECK_STATIC_TLS): Move to...
* elf/dynamic-link.h: ... this file.
(TRY_STATIC_TLS): New macro.
* elf/dl-conflict.c (CHECK_STATIC_TLS, TRY_STATIC_TLS): Override.
* elf/elf.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL,
R_386_TLS_DESC): Define.
(R_X86_64_PC64, R_X86_GOTOFF64, R_X86_64_GOTPC32): Merge from
binutils.
(R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL,
R_X86_64_TLSDESC): Define.
(R_386_NUM, R_X86_64_NUM): Adjust.
* sysdeps/i386/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/i386/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/i386/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_type_class): Mark R_386_TLS_DESC as PLT class.
(elf_machine_rel): Handle R_386_TLS_DESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
(elf_machine_lazy_rela): Likewise.
* sysdeps/i386/dl-tls.h (struct dl_tls_index): Name it.
* sysdeps/i386/dl-tlsdesc.S: New file.
* sysdeps/i386/dl-tlsdesc.h: New file.
* sysdeps/i386/tlsdesc.c: New file.
* sysdeps/i386/tlsdesc.sym: New file.
* sysdeps/i386/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table.
* sysdeps/x86_64/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/x86_64/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/x86_64/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_runtime_setup): Set up lazy TLSDESC GOT entry.
(elf_machine_type_class): Mark R_X86_64_TLSDESC as PLT class.
(elf_machine_rel): Handle R_X86_64_TLSDESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
* sysdeps/x86_64/dl-tls.h (struct dl_tls_index): Name it.
(__tls_get_addr): Do not declare for non-shared compiles.
* sysdeps/x86_64/dl-tlsdesc.S: New file.
* sysdeps/x86_64/dl-tlsdesc.h: New file.
* sysdeps/x86_64/tlsdesc.c: New file.
* sysdeps/x86_64/tlsdesc.sym: New file.
* sysdeps/x86_64/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table for both 32- and 64-bit structs.
2008-05-13 05:41:30 +00:00
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};
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typedef struct dl_tls_index
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{
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2012-03-23 18:06:57 +00:00
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uint64_t ti_module;
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uint64_t ti_offset;
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Introduce TLS descriptors for i386 and x86_64.
* include/inline-hashtab.h: New file, copied from 2005's
libiberty, with fix for memory leak imported afterwards by
Glauber de Oliveira Costa.
* elf/tlsdeschtab.h: New file.
* elf/dl-reloc.c (_dl_try_allocate_static_tls): Extract from...
(_dl_allocate_static_tls): ... here. Rearrange failure path.
(CHECK_STATIC_TLS): Move to...
* elf/dynamic-link.h: ... this file.
(TRY_STATIC_TLS): New macro.
* elf/dl-conflict.c (CHECK_STATIC_TLS, TRY_STATIC_TLS): Override.
* elf/elf.h (R_386_TLS_GOTDESC, R_386_TLS_DESC_CALL,
R_386_TLS_DESC): Define.
(R_X86_64_PC64, R_X86_GOTOFF64, R_X86_64_GOTPC32): Merge from
binutils.
(R_X86_64_GOTPC32_TLSDESC, R_X86_64_TLSDESC_CALL,
R_X86_64_TLSDESC): Define.
(R_386_NUM, R_X86_64_NUM): Adjust.
* sysdeps/i386/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/i386/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/i386/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_type_class): Mark R_386_TLS_DESC as PLT class.
(elf_machine_rel): Handle R_386_TLS_DESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
(elf_machine_lazy_rela): Likewise.
* sysdeps/i386/dl-tls.h (struct dl_tls_index): Name it.
* sysdeps/i386/dl-tlsdesc.S: New file.
* sysdeps/i386/dl-tlsdesc.h: New file.
* sysdeps/i386/tlsdesc.c: New file.
* sysdeps/i386/tlsdesc.sym: New file.
* sysdeps/i386/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table.
* sysdeps/x86_64/Makefile (sysdep-dl-routines, sysdep_routines,
systep-rtld-routines): Add tlsdesc and dl-tlsdesc for elf subdir.
(gen-as-const-headers): Add tlsdesc.sym to csu subdir.
* sysdeps/x86_64/dl-lookupcfg.h: New file. Introduce _dl_unmap to
release tlsdesc_table.
* sysdeps/x86_64/dl-machine.h: Include dl-tlsdesc.h.
(elf_machine_runtime_setup): Set up lazy TLSDESC GOT entry.
(elf_machine_type_class): Mark R_X86_64_TLSDESC as PLT class.
(elf_machine_rel): Handle R_X86_64_TLSDESC.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
* sysdeps/x86_64/dl-tls.h (struct dl_tls_index): Name it.
(__tls_get_addr): Do not declare for non-shared compiles.
* sysdeps/x86_64/dl-tlsdesc.S: New file.
* sysdeps/x86_64/dl-tlsdesc.h: New file.
* sysdeps/x86_64/tlsdesc.c: New file.
* sysdeps/x86_64/tlsdesc.sym: New file.
* sysdeps/x86_64/bits/linkmap.h (struct link_map_machine): Add
tlsdesc_table for both 32- and 64-bit structs.
2008-05-13 05:41:30 +00:00
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} tls_index;
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/* Type used as the argument in a TLS descriptor for a symbol that
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needs dynamic TLS offsets. */
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struct tlsdesc_dynamic_arg
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{
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tls_index tlsinfo;
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size_t gen_count;
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};
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extern ptrdiff_t attribute_hidden
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_dl_tlsdesc_return(struct tlsdesc *on_rax),
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_dl_tlsdesc_undefweak(struct tlsdesc *on_rax),
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_dl_tlsdesc_resolve_rela(struct tlsdesc *on_rax),
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_dl_tlsdesc_resolve_hold(struct tlsdesc *on_rax);
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# ifdef SHARED
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extern void *internal_function _dl_make_tlsdesc_dynamic (struct link_map *map,
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size_t ti_offset);
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extern ptrdiff_t attribute_hidden _dl_tlsdesc_dynamic(struct tlsdesc *);
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# endif
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#endif
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