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Diffstat (limited to 'sysdeps/hppa/dl-lookupcfg.h')
| -rw-r--r-- | sysdeps/hppa/dl-lookupcfg.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/hppa/dl-lookupcfg.h b/sysdeps/hppa/dl-lookupcfg.h new file mode 100644 index 0000000000..d393b3e427 --- /dev/null +++ b/sysdeps/hppa/dl-lookupcfg.h @@ -0,0 +1,69 @@ +/* Configuration of lookup functions. + Copyright (C) 2000 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. */ + +/* Like IA-64, PA-RISC needs more information from the symbol lookup + function than just the address. */ +#define DL_LOOKUP_RETURNS_MAP +#define ELF_FUNCTION_PTR_IS_SPECIAL +#define DL_UNMAP_IS_SPECIAL + +/* 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)) + |