2000-10-15 05:19:45 +02:00
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/* Configuration of lookup functions.
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2014-01-01 12:03:15 +01:00
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Copyright (C) 2000-2014 Free Software Foundation, Inc.
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2000-10-15 05:19:45 +02:00
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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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2001-07-06 06:56:23 +02:00
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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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2000-10-15 05:19:45 +02:00
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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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2001-07-06 06:56:23 +02:00
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Lesser General Public License for more details.
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2000-10-15 05:19:45 +02:00
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2001-07-06 06:56:23 +02:00
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You should have received a copy of the GNU Lesser General Public
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2012-03-10 00:56:38 +01:00
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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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2000-10-15 05:19:45 +02:00
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#define ELF_FUNCTION_PTR_IS_SPECIAL
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#define DL_UNMAP_IS_SPECIAL
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2006-05-15 Carlos O'Donell <carlos@systemhalted.org>
* sysdeps/hppa/dl-machine.h: Include tls.h
(elf_machine_fixup_plt): Returns fdesc.
(elf_machine_profile_fixup_plt): Remove.
(elf_machine_plt_value): Returns fdesc.
(elf_machine_runtime_setup): Check that dl_profile != NULL.
(ARCH_LA_PLTENT, ARCH_LA_PLTEXIT): Define.
(RTLD_START): Use iitlbp with sr0.
(elf_machine_type_class): Include TLS relocs.
(reassemble_21, reassemble_14): Define.
(elf_machine_rela): Add DIR21L, DIR14R, PLABEL21L, PLABEL14R,
TLS_DTPMOD32, TLS_TPREL32, TLS_DTPOFF32 support.
(TRAMPOLINE_TEMPLATE): Move to ...
* sysdeps/hppa/dl-trampoline.S: ... here.
* sysdeps/hppa/abort-instr.h: Use iitlbp with sr0.
* sysdeps/hppa/dl-lookupcfg.h: Inlcude dl-fptr.h.
(DL_FIXUP_VALUE_TYPE, DL_FIXUP_MAKE_VALUE, DL_FIXUP_VALUE_CODE_ADDR,
DL_FIXUP_VALUE_ADD, DL_FIXUP_ADDR_VALUE): Define.
* sysdeps/hppa/sysdep.h: Use "!" as a separator. Cleanup comments.
* sysdeps/hppa/bits/link.h (La_hppa_regs, La_hppa_retval): Define.
Define prototypes for la_hppa_gnu_pltenter and la_hppa_gnu_pltexit.
2006-05-15 01:54:47 +02:00
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#include <dl-fptr.h>
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2001-09-08 19:13:52 +02:00
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/* Forward declaration. */
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struct link_map;
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2003-12-18 04:53:47 +01:00
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void *_dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref);
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2000-10-15 05:19:45 +02:00
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#define DL_SYMBOL_ADDRESS(map, ref) _dl_symbol_address(map, ref)
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Elf32_Addr _dl_lookup_address (const void *address);
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2003-12-18 04:53:47 +01:00
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/* Clear the bottom two bits so generic code can find the fdesc entry */
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#define DL_LOOKUP_ADDRESS(addr) \
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(_dl_lookup_address ((void *)((unsigned long)addr & ~3)))
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2000-10-15 05:19:45 +02:00
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void _dl_unmap (struct link_map *map);
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#define DL_UNMAP(map) _dl_unmap (map)
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2001-04-22 05:21:34 +02:00
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2013-11-21 19:23:16 +01:00
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#define DL_DT_FUNCTION_ADDRESS(map, start, attr, addr) \
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attr volatile unsigned int fptr[2]; \
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/* The test for "start & 2" below is to accommodate old binaries which \
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violated the ELF ABI by pointing DT_INIT and DT_FINI at a function \
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descriptor. */ \
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if ((ElfW(Addr)) (start) & 2) \
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addr = (ElfW(Addr)) start; \
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else \
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{ \
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fptr[0] = (unsigned int) (start); \
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fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
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/* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */ \
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addr = (ElfW(Addr))((unsigned int)fptr | 2); \
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} \
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#define DL_CALL_DT_INIT(map, start, argc, argv, env) \
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{ \
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ElfW(Addr) addr; \
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DL_DT_FUNCTION_ADDRESS(map, start, , addr) \
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init_t init = (init_t) addr; \
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init (argc, argv, env); \
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}
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#define DL_CALL_DT_FINI(map, start) \
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{ \
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ElfW(Addr) addr; \
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DL_DT_FUNCTION_ADDRESS(map, start, , addr) \
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fini_t fini = (fini_t) addr; \
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fini (); \
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}
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2006-05-15 Carlos O'Donell <carlos@systemhalted.org>
* sysdeps/hppa/dl-machine.h: Include tls.h
(elf_machine_fixup_plt): Returns fdesc.
(elf_machine_profile_fixup_plt): Remove.
(elf_machine_plt_value): Returns fdesc.
(elf_machine_runtime_setup): Check that dl_profile != NULL.
(ARCH_LA_PLTENT, ARCH_LA_PLTEXIT): Define.
(RTLD_START): Use iitlbp with sr0.
(elf_machine_type_class): Include TLS relocs.
(reassemble_21, reassemble_14): Define.
(elf_machine_rela): Add DIR21L, DIR14R, PLABEL21L, PLABEL14R,
TLS_DTPMOD32, TLS_TPREL32, TLS_DTPOFF32 support.
(TRAMPOLINE_TEMPLATE): Move to ...
* sysdeps/hppa/dl-trampoline.S: ... here.
* sysdeps/hppa/abort-instr.h: Use iitlbp with sr0.
* sysdeps/hppa/dl-lookupcfg.h: Inlcude dl-fptr.h.
(DL_FIXUP_VALUE_TYPE, DL_FIXUP_MAKE_VALUE, DL_FIXUP_VALUE_CODE_ADDR,
DL_FIXUP_VALUE_ADD, DL_FIXUP_ADDR_VALUE): Define.
* sysdeps/hppa/sysdep.h: Use "!" as a separator. Cleanup comments.
* sysdeps/hppa/bits/link.h (La_hppa_regs, La_hppa_retval): Define.
Define prototypes for la_hppa_gnu_pltenter and la_hppa_gnu_pltexit.
2006-05-15 01:54:47 +02:00
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/* The type of the return value of fixup/profile_fixup */
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#define DL_FIXUP_VALUE_TYPE struct fdesc
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/* Construct a fixup value from the address and linkmap */
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#define DL_FIXUP_MAKE_VALUE(map, addr) \
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((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr })
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/* Extract the code address from a fixup value */
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#define DL_FIXUP_VALUE_CODE_ADDR(value) ((value).ip)
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#define DL_FIXUP_VALUE_ADDR(value) ((uintptr_t) &(value))
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#define DL_FIXUP_ADDR_VALUE(addr) (*(struct fdesc *) (addr))
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