glibc/sysdeps/hppa/dl-lookupcfg.h
Carlos O'Donell 084442fce3 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.
2006-05-14 23:54:47 +00:00

81 lines
2.9 KiB
C

/* Configuration of lookup functions.
Copyright (C) 2000, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#define ELF_FUNCTION_PTR_IS_SPECIAL
#define DL_UNMAP_IS_SPECIAL
#include <dl-fptr.h>
/* Forward declaration. */
struct link_map;
void *_dl_symbol_address (struct link_map *map, const ElfW(Sym) *ref);
#define DL_SYMBOL_ADDRESS(map, ref) _dl_symbol_address(map, ref)
Elf32_Addr _dl_lookup_address (const void *address);
/* Clear the bottom two bits so generic code can find the fdesc entry */
#define DL_LOOKUP_ADDRESS(addr) \
(_dl_lookup_address ((void *)((unsigned long)addr & ~3)))
void _dl_unmap (struct link_map *map);
#define DL_UNMAP(map) _dl_unmap (map)
#define DL_AUTO_FUNCTION_ADDRESS(map, addr) \
({ \
unsigned int fptr[2]; \
fptr[0] = (unsigned int) (addr); \
fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
/* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */ \
(ElfW(Addr))((unsigned int)fptr | 2); \
})
#define DL_STATIC_FUNCTION_ADDRESS(map, addr) \
({ \
static unsigned int fptr[2]; \
fptr[0] = (unsigned int) (addr); \
fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \
/* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */ \
(ElfW(Addr))((unsigned int)fptr | 2); \
})
/* The test for "addr & 2" below is to accomodate old binaries which
violated the ELF ABI by pointing DT_INIT and DT_FINI at a function
descriptor. */
#define DL_DT_INIT_ADDRESS(map, addr) \
((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr))
#define DL_DT_FINI_ADDRESS(map, addr) \
((Elf32_Addr)(addr) & 2 ? (addr) : DL_AUTO_FUNCTION_ADDRESS (map, addr))
/* The type of the return value of fixup/profile_fixup */
#define DL_FIXUP_VALUE_TYPE struct fdesc
/* Construct a fixup value from the address and linkmap */
#define DL_FIXUP_MAKE_VALUE(map, addr) \
((struct fdesc) { (addr), (map)->l_info[DT_PLTGOT]->d_un.d_ptr })
/* Extract the code address from a fixup value */
#define DL_FIXUP_VALUE_CODE_ADDR(value) ((value).ip)
#define DL_FIXUP_VALUE_ADDR(value) ((uintptr_t) &(value))
#define DL_FIXUP_ADDR_VALUE(addr) (*(struct fdesc *) (addr))