diff options
Diffstat (limited to 'sysdeps/m68k/dl-machine.h')
| -rw-r--r-- | sysdeps/m68k/dl-machine.h | 204 |
1 files changed, 98 insertions, 106 deletions
diff --git a/sysdeps/m68k/dl-machine.h b/sysdeps/m68k/dl-machine.h index a11ff237ad..0cb0b34f35 100644 --- a/sysdeps/m68k/dl-machine.h +++ b/sysdeps/m68k/dl-machine.h @@ -17,12 +17,12 @@ License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#ifndef dl_machine_h +#define dl_machine_h + #define ELF_MACHINE_NAME "m68k" #include <assert.h> -#include <string.h> -#include <link.h> - /* Return nonzero iff E_MACHINE is compatible with the running host. */ static inline int @@ -68,109 +68,6 @@ elf_machine_load_address (void) ((dynamic_info)[DT_RELA]->d_un.d_ptr += sizeof (Elf32_Rela), \ (dynamic_info)[DT_RELASZ]->d_un.d_val -= sizeof (Elf32_Rela)) -/* Perform the relocation specified by RELOC and SYM (which is fully resolved). - MAP is the object containing the reloc. */ - -static inline void -elf_machine_rela (struct link_map *map, - const Elf32_Rela *reloc, const Elf32_Sym *sym, - Elf32_Addr (*resolve) (const Elf32_Sym **ref, - Elf32_Addr reloc_addr, - int noplt)) -{ - Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); - Elf32_Addr loadbase; - -#ifdef RTLD_BOOTSTRAP -#define RESOLVE(noplt) map->l_addr -#else -#define RESOLVE(noplt) (*resolve) (&sym, (Elf32_Addr) reloc_addr, noplt) -#endif - - switch (ELF32_R_TYPE (reloc->r_info)) - { - case R_68K_COPY: - loadbase = RESOLVE (0); - memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size); - break; - case R_68K_GLOB_DAT: - loadbase = RESOLVE (0); - *reloc_addr = sym ? (loadbase + sym->st_value) : 0; - break; - case R_68K_JMP_SLOT: - loadbase = RESOLVE (1); - *reloc_addr = sym ? (loadbase + sym->st_value) : 0; - break; - case R_68K_8: - loadbase = RESOLVE (0); - *(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) - + reloc->r_addend); - break; - case R_68K_16: - loadbase = RESOLVE (0); - *(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) - + reloc->r_addend); - break; - case R_68K_32: - loadbase = RESOLVE (0); - *reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) - + reloc->r_addend); - break; - case R_68K_RELATIVE: - *reloc_addr = map->l_addr + reloc->r_addend; - break; - case R_68K_PC8: - loadbase = RESOLVE (0); - *(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) - + reloc->r_addend - - (Elf32_Addr) reloc_addr); - break; - case R_68K_PC16: - loadbase = RESOLVE (0); - *(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) - + reloc->r_addend - - (Elf32_Addr) reloc_addr); - break; - case R_68K_PC32: - loadbase = RESOLVE (0); - *reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) - + reloc->r_addend - - (Elf32_Addr) reloc_addr); - break; - case R_68K_NONE: /* Alright, Wilbur. */ - break; - default: - assert (! "unexpected dynamic reloc type"); - break; - } - -#undef RESOLVE -} - -static inline void -elf_machine_lazy_rel (struct link_map *map, const Elf32_Rela *reloc) -{ - Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); - switch (ELF32_R_TYPE (reloc->r_info)) - { - case R_68K_NONE: - break; - case R_68K_JMP_SLOT: - *reloc_addr += map->l_addr; - break; - default: - assert (! "unexpected PLT reloc type"); - break; - } -} - -/* 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_68K_JMP_SLOT) - -/* The m68k never uses Elf32_Rel relocations. */ -#define ELF_MACHINE_NO_REL 1 - /* 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. */ @@ -283,3 +180,98 @@ _dl_start_user: move.l %sp, %fp | Jump to the user's entry point. jmp (%a4)"); + +/* 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_68K_JMP_SLOT) + +/* The m68k never uses Elf32_Rel relocations. */ +#define ELF_MACHINE_NO_REL 1 + +#endif /* !dl_machine_h */ + +#ifdef RESOLVE + +/* Perform the relocation specified by RELOC and SYM (which is fully resolved). + MAP is the object containing the reloc. */ + +static inline void +elf_machine_rela (struct link_map *map, + const Elf32_Rela *reloc, const Elf32_Sym *sym) +{ + Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); + Elf32_Addr loadbase; + + switch (ELF32_R_TYPE (reloc->r_info)) + { + case R_68K_COPY: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + memcpy (reloc_addr, (void *) (loadbase + sym->st_value), sym->st_size); + break; + case R_68K_GLOB_DAT: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *reloc_addr = sym ? (loadbase + sym->st_value) : 0; + break; + case R_68K_JMP_SLOT: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 1); + *reloc_addr = sym ? (loadbase + sym->st_value) : 0; + break; + case R_68K_8: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) + + reloc->r_addend); + break; + case R_68K_16: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) + + reloc->r_addend); + break; + case R_68K_32: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) + + reloc->r_addend); + break; + case R_68K_RELATIVE: + *reloc_addr = map->l_addr + reloc->r_addend; + break; + case R_68K_PC8: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *(char *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) + + reloc->r_addend - (Elf32_Addr) reloc_addr); + break; + case R_68K_PC16: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *(short *) reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) + + reloc->r_addend - (Elf32_Addr) reloc_addr); + break; + case R_68K_PC32: + loadbase = RESOLVE (&sym, (Elf32_Addr) reloc_addr, 0); + *reloc_addr = ((sym ? (loadbase + sym->st_value) : 0) + + reloc->r_addend - (Elf32_Addr) reloc_addr); + break; + case R_68K_NONE: /* Alright, Wilbur. */ + break; + default: + assert (! "unexpected dynamic reloc type"); + break; + } + +#undef RESOLVE +} + +static inline void +elf_machine_lazy_rel (struct link_map *map, const Elf32_Rela *reloc) +{ + Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset); + switch (ELF32_R_TYPE (reloc->r_info)) + { + case R_68K_JMP_SLOT: + *reloc_addr += map->l_addr; + break; + default: + assert (! "unexpected PLT reloc type"); + break; + } +} + +#endif /* RESOLVE */ |