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Diffstat (limited to 'sysdeps/hppa/dl-lookupcfg.h')
| -rw-r--r-- | sysdeps/hppa/dl-lookupcfg.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/sysdeps/hppa/dl-lookupcfg.h b/sysdeps/hppa/dl-lookupcfg.h new file mode 100644 index 0000000000..58dc3856c6 --- /dev/null +++ b/sysdeps/hppa/dl-lookupcfg.h @@ -0,0 +1,82 @@ +/* Configuration of lookup functions. + Copyright (C) 2000-2014 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, see + <http://www.gnu.org/licenses/>. */ + +#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_DT_FUNCTION_ADDRESS(map, start, attr, addr) \ + attr volatile unsigned int fptr[2]; \ + /* The test for "start & 2" below is to accommodate old binaries which \ + violated the ELF ABI by pointing DT_INIT and DT_FINI at a function \ + descriptor. */ \ + if ((ElfW(Addr)) (start) & 2) \ + addr = (ElfW(Addr)) start; \ + else \ + { \ + fptr[0] = (unsigned int) (start); \ + fptr[1] = (map)->l_info[DT_PLTGOT]->d_un.d_ptr; \ + /* Set bit 30 to indicate to $$dyncall that this is a PLABEL. */ \ + addr = (ElfW(Addr))((unsigned int)fptr | 2); \ + } \ + +#define DL_CALL_DT_INIT(map, start, argc, argv, env) \ +{ \ + ElfW(Addr) addr; \ + DL_DT_FUNCTION_ADDRESS(map, start, , addr) \ + init_t init = (init_t) addr; \ + init (argc, argv, env); \ +} + +#define DL_CALL_DT_FINI(map, start) \ +{ \ + ElfW(Addr) addr; \ + DL_DT_FUNCTION_ADDRESS(map, start, , addr) \ + fini_t fini = (fini_t) addr; \ + fini (); \ +} + +/* 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)) |