diff options
Diffstat (limited to 'sysdeps/stub/dl-machine.h')
| -rw-r--r-- | sysdeps/stub/dl-machine.h | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/sysdeps/stub/dl-machine.h b/sysdeps/stub/dl-machine.h deleted file mode 100644 index f787df3500..0000000000 --- a/sysdeps/stub/dl-machine.h +++ /dev/null @@ -1,137 +0,0 @@ -/* Machine-dependent ELF dynamic relocation inline functions. Stub version. - Copyright (C) 1995, 1996, 1997 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 Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, write to the Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#define ELF_MACHINE_NAME "stub" - -#include <assert.h> -#include <string.h> -#include <link.h> - - -/* Return nonzero iff E_MACHINE is compatible with the running host. */ -static inline int -elf_machine_matches_host (Elf32_Half e_machine) -{ - switch (e_machine) - { - default: - return 0; - } -} - - -/* Return the link-time address of _DYNAMIC. */ -static inline Elf32_Addr -elf_machine_dynamic (void) -{ -#error "Damn, no _DYNAMIC" -} - - -/* Return the run-time load address of the shared object. */ -static inline Elf32_Addr -elf_machine_load_address (void) -{ -#error "Where am I?" -} - -/* Fixup a PLT entry to bounce directly to the function at VALUE. */ - -static inline void -elf_machine_fixup_plt (struct link_map *map, const Elf32_Rel *reloc, - Elf32_Addr *reloc_addr, Elf32_Addr value) -{ - *reloc_addr = value; -} - -/* Perform the relocation specified by RELOC and SYM (which is fully resolved). - LOADADDR is the load address of the object; INFO is an array indexed - by DT_* of the .dynamic section info. */ - -static inline void -elf_machine_rel (Elf32_Addr loadaddr, Elf32_Dyn *info[DT_NUM], - const Elf32_Rel *reloc, const Elf32_Sym *sym, - Elf32_Addr (*resolve) (const Elf32_Sym **ref, - Elf32_Addr reloc_addr, - int noplt)) -{ - Elf32_Addr *const reloc_addr = (Elf32_Addr *) reloc->r_offset; - Elf32_Addr loadbase; - - switch (ELF32_R_TYPE (reloc->r_info)) - { - case R_MACHINE_COPY: - loadbase = (*resolve) (&sym, (Elf32_Addr) reloc_addr, 0); - memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size); - break; - default: - assert (! "unexpected dynamic reloc type"); - break; - } -} - - -static inline Elf32_Addr -elf_machine_rela (Elf32_Addr loadaddr, Elf32_Dyn *info[DT_NUM], - const Elf32_Rel *reloc, const Elf32_Sym *sym, - Elf32_Addr (*resolve) (const Elf32_Sym **ref, - Elf32_Addr reloc_addr, - int noplt)) -{ - _dl_signal_error (0, "Elf32_Rela relocation requested -- unused on " - ELF_MACHINE_NAME); -} - - -/* Nonzero iff TYPE describes relocation of a PLT entry, so - PLT entries should not be allowed to define the value. */ -#define elf_machine_pltrel_p(type) ((type) == R_???_JMP_SLOT) - - -/* Set up the loaded object described by L so its unrelocated PLT - entries will jump to the on-demand fixup code in dl-runtime.c. */ - -static inline int -elf_machine_runtime_setup (struct link_map *l, int lazy) -{ - extern void _dl_runtime_resolve (Elf32_Word); - - if (lazy) - { - /* The GOT entries for functions in the PLT have not yet been filled - in. Their initial contents will arrange when called to push an - offset into the .rel.plt section, push _GLOBAL_OFFSET_TABLE_[1], - and then jump to _GLOBAL_OFFSET_TABLE[2]. */ - Elf32_Addr *got = (Elf32_Addr *) l->l_info[DT_PLTGOT]->d_un.d_ptr; - got[1] = (Elf32_Addr) l; /* Identify this shared object. */ - - /* This function will get called to fix up the GOT entry indicated by - the offset on the stack, and then jump to the resolved address. */ - got[2] = (Elf32_Addr) &_dl_runtime_resolve; - } - - return lazy; -} - - -/* Initial entry point code for the dynamic linker. - The C function `_dl_start' is the real entry point; - its return value is the user program's entry point. */ - -#define RTLD_START #error need some startup code |