/* BFD backend for MIPS BSD (a.out) binaries.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994, 1995, 1997 Free Software Foundation, Inc.
Written by Ralph Campbell.
This file is part of BFD, the Binary File Descriptor library.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define BYTES_IN_WORD 4
-#define ARCH 32
/* #define ENTRY_CAN_BE_ZERO */
#define N_HEADER_IN_TEXT(x) 1
#define N_SHARED_LIB(x) 0
)
#define N_DATADDR(x) (N_TXTADDR(x)+N_TXTSIZE(x))
#define TEXT_START_ADDR 4096
-#define PAGE_SIZE 4096
-#define SEGMENT_SIZE PAGE_SIZE
+#define TARGET_PAGE_SIZE 4096
+#define SEGMENT_SIZE TARGET_PAGE_SIZE
#define DEFAULT_ARCH bfd_arch_mips
+#define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
+ || (mtype) == M_MIPS1 || (mtype) == M_MIPS2)
#define MY_symbol_leading_char '\0'
#define MY(OP) CAT(mipsbsd_,OP)
#define MY_write_object_contents MY(write_object_contents)
static boolean MY(write_object_contents) PARAMS ((bfd *abfd));
-#define MY_reloc_howto_type_lookup MY(reloc_howto_type_lookup)
-#define MY_canonicalize_reloc MY(canonicalize_reloc)
+/* We can't use MY(x) here because it leads to a recursive call to CAT
+ when expanded inside JUMP_TABLE. */
+#define MY_bfd_reloc_type_lookup mipsbsd_reloc_howto_type_lookup
+#define MY_canonicalize_reloc mipsbsd_canonicalize_reloc
+
+#define MY_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#define MY_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define MY_final_link_callback unused
+#define MY_bfd_final_link _bfd_generic_final_link
#define MY_backend_data &MY(backend_data)
#define MY_BFD_TARGET
switch (bfd_get_arch(abfd)) {
case bfd_arch_m68k:
switch (bfd_get_mach(abfd)) {
- case 68010:
+ case bfd_mach_m68010:
N_SET_MACHTYPE(*execp, M_68010);
break;
default:
- case 68020:
+ case bfd_mach_m68020:
N_SET_MACHTYPE(*execp, M_68020);
break;
}
#define MIPS_RELOC_HI16_S 4
#define MIPS_RELOC_LO16 5
+/*
+ * This is only called when performing a BFD_RELOC_MIPS_JMP relocation.
+ * The jump destination address is formed from the upper 4 bits of the
+ * "current" program counter concatenated with the jump instruction's
+ * 26 bit field and two trailing zeros.
+ * If the destination address is not in the same segment as the "current"
+ * program counter, then we need to signal an error.
+ */
+static bfd_reloc_status_type
+mips_fix_jmp_addr (abfd,reloc_entry,symbol,data,input_section,output_bfd)
+ bfd *abfd;
+ arelent *reloc_entry;
+ struct symbol_cache_entry *symbol;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+{
+ bfd_vma relocation, pc;
+
+ /* If this is a partial relocation, just continue. */
+ if (output_bfd != (bfd *)NULL)
+ return bfd_reloc_continue;
+
+ /* If this is an undefined symbol, return error */
+ if (bfd_is_und_section (symbol->section)
+ && (symbol->flags & BSF_WEAK) == 0)
+ return bfd_reloc_undefined;
+
+ /*
+ * Work out which section the relocation is targetted at and the
+ * initial relocation command value.
+ */
+ if (bfd_is_com_section (symbol->section))
+ relocation = 0;
+ else
+ relocation = symbol->value;
+
+ relocation += symbol->section->output_section->vma;
+ relocation += symbol->section->output_offset;
+ relocation += reloc_entry->addend;
+
+ pc = input_section->output_section->vma + input_section->output_offset +
+ reloc_entry->address + 4;
+
+ if ((relocation & 0xF0000000) != (pc & 0xF0000000))
+ return bfd_reloc_overflow;
+
+ return bfd_reloc_continue;
+}
+
/*
* This is only called when performing a BFD_RELOC_HI16_S relocation.
* We need to see if bit 15 is set in the result. If it is, we add
* 0x10000 and continue normally. This will compensate for the sign extension
* when the low bits are added at run time.
*/
-bfd_reloc_status_type
-mips_fix_hi16_s (abfd,reloc_entry,symbol,data,input_section,output_bfd)
+static bfd_reloc_status_type
+mips_fix_hi16_s PARAMS ((bfd *, arelent *, asymbol *, PTR,
+ asection *, bfd *, char **));
+
+static bfd_reloc_status_type
+mips_fix_hi16_s (abfd, reloc_entry, symbol, data, input_section,
+ output_bfd, error_message)
bfd *abfd;
arelent *reloc_entry;
- struct symbol_cache_entry *symbol;
+ asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
+ char **error_message;
{
bfd_vma relocation;
if (output_bfd != (bfd *)NULL)
return bfd_reloc_continue;
+ /* If this is an undefined symbol, return error */
+ if (bfd_is_und_section (symbol->section)
+ && (symbol->flags & BSF_WEAK) == 0)
+ return bfd_reloc_undefined;
+
/*
* Work out which section the relocation is targetted at and the
* initial relocation command value.
*/
- if (symbol->section == &bfd_com_section)
+ if (bfd_is_com_section (symbol->section))
relocation = 0;
else
relocation = symbol->value;
}
static reloc_howto_type mips_howto_table_ext[] = {
- MIPS_RELOC_32, 0, 2, 32, false, 0, true, true, 0,
- "32", false, 0, 0xffffffff, false,
- MIPS_RELOC_JMP, 2, 2, 26, false, 0, false, true, 0,
- "MIPS_JMP", false, 0, 0x03ffffff, false,
- MIPS_RELOC_WDISP16, 2, 1, 16, true, 0, false, true, 0,
- "WDISP16", false, 0, 0x0000ffff, false,
- MIPS_RELOC_HI16, 16, 1, 16, false, 0, false, true, 0,
- "HI16", false, 0, 0x0000ffff, false,
- MIPS_RELOC_HI16_S, 16, 1, 16, false, 0, false, true, mips_fix_hi16_s,
- "HI16_S", false, 0, 0x0000ffff, false,
- MIPS_RELOC_LO16, 0, 1, 16, false, 0, false, true, 0,
- "LO16", false, 0, 0x0000ffff, false,
+ {MIPS_RELOC_32, 0, 2, 32, false, 0, complain_overflow_bitfield, 0,
+ "32", false, 0, 0xffffffff, false},
+ {MIPS_RELOC_JMP, 2, 2, 26, false, 0, complain_overflow_dont,
+ mips_fix_jmp_addr,
+ "MIPS_JMP", false, 0, 0x03ffffff, false},
+ {MIPS_RELOC_WDISP16, 2, 2, 16, true, 0, complain_overflow_signed, 0,
+ "WDISP16", false, 0, 0x0000ffff, false},
+ {MIPS_RELOC_HI16, 16, 2, 16, false, 0, complain_overflow_bitfield, 0,
+ "HI16", false, 0, 0x0000ffff, false},
+ {MIPS_RELOC_HI16_S, 16, 2, 16, false, 0, complain_overflow_bitfield,
+ mips_fix_hi16_s,
+ "HI16_S", false, 0, 0x0000ffff, false},
+ {MIPS_RELOC_LO16, 0, 2, 16, false, 0, complain_overflow_dont, 0,
+ "LO16", false, 0, 0x0000ffff, false},
};
static reloc_howto_type *
bfd *abfd;
bfd_reloc_code_real_type code;
{
- extern reloc_howto_type NAME(aout,ext_howto_table)[];
if (bfd_get_arch (abfd) != bfd_arch_mips)
return 0;
switch (code)
{
+ case BFD_RELOC_CTOR:
case BFD_RELOC_32:
return (&mips_howto_table_ext[MIPS_RELOC_32]);
case BFD_RELOC_MIPS_JMP:
* This is just like the standard aoutx.h version but we need to do our
* own mapping of external reloc type values to howto entries.
*/
-unsigned int
+long
MY(canonicalize_reloc)(abfd, section, relptr, symbols)
bfd *abfd;
sec_ptr section;
}
if (!NAME(aout,slurp_reloc_table)(abfd, section, symbols))
- return 0;
+ return -1;
tblptr = section->relocation;
- if (!tblptr)
- return 0;
/* fix up howto entries */
for (count = 0; count++ < section->reloc_count;)
static CONST struct aout_backend_data MY(backend_data) = {
0, /* zmagic contiguous */
1, /* text incl header */
- PAGE_SIZE, /* text vma */
+ 0, /* entry is text address */
+ 0, /* exec_hdr_flags */
+ TARGET_PAGE_SIZE, /* text vma */
MY_set_sizes,
0, /* text size includes exec header */
+ 0, /* add_dynamic_symbols */
+ 0, /* add_one_symbol */
+ 0, /* link_dynamic_object */
+ 0, /* write_dynamic_symbol */
+ 0, /* check_dynamic_reloc */
+ 0 /* finish_dynamic_link */
};
-bfd_target aout_mips_little_vec =
+const bfd_target aout_mips_little_vec =
{
- "aout-mips-little", /* name */
+ "a.out-mips-little", /* name */
bfd_target_aout_flavour,
- false, /* target byte order (little) */
- false, /* target headers byte order (little) */
+ BFD_ENDIAN_LITTLE, /* target byte order (little) */
+ BFD_ENDIAN_LITTLE, /* target headers byte order (little) */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
MY_symbol_leading_char,
' ', /* ar_pad_char */
15, /* ar_max_namelen */
- 1, /* minimum alignment */
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
{_bfd_dummy_target, MY_object_p, /* bfd_check_format */
bfd_generic_archive_p, MY_core_file_p},
{bfd_false, MY_mkobject, /* bfd_set_format */
{bfd_false, MY_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
- MY_core_file_failing_command,
- MY_core_file_failing_signal,
- MY_core_file_matches_executable_p,
- MY_slurp_armap,
- MY_slurp_extended_name_table,
- MY_truncate_arname,
- MY_write_armap,
- MY_close_and_cleanup,
- MY_set_section_contents,
- MY_get_section_contents,
- MY_new_section_hook,
- MY_get_symtab_upper_bound,
- MY_get_symtab,
- MY_get_reloc_upper_bound,
- MY_canonicalize_reloc,
- MY_make_empty_symbol,
- MY_print_symbol,
- MY_get_lineno,
- MY_set_arch_mach,
- MY_openr_next_archived_file,
- MY_find_nearest_line,
- MY_generic_stat_arch_elt,
- MY_sizeof_headers,
- MY_bfd_debug_info_start,
- MY_bfd_debug_info_end,
- MY_bfd_debug_info_accumulate,
- bfd_generic_get_relocated_section_contents,
- bfd_generic_relax_section,
- bfd_generic_seclet_link,
- MY_reloc_howto_type_lookup,
- MY_make_debug_symbol,
+ BFD_JUMP_TABLE_GENERIC (MY),
+ BFD_JUMP_TABLE_COPY (MY),
+ BFD_JUMP_TABLE_CORE (MY),
+ BFD_JUMP_TABLE_ARCHIVE (MY),
+ BFD_JUMP_TABLE_SYMBOLS (MY),
+ BFD_JUMP_TABLE_RELOCS (MY),
+ BFD_JUMP_TABLE_WRITE (MY),
+ BFD_JUMP_TABLE_LINK (MY),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
(PTR) MY_backend_data,
};
-bfd_target aout_mips_big_vec =
+const bfd_target aout_mips_big_vec =
{
- "aout-mips-big", /* name */
+ "a.out-mips-big", /* name */
bfd_target_aout_flavour,
- true, /* target byte order (big) */
- true, /* target headers byte order (big) */
+ BFD_ENDIAN_BIG, /* target byte order (big) */
+ BFD_ENDIAN_BIG, /* target headers byte order (big) */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
MY_symbol_leading_char,
' ', /* ar_pad_char */
15, /* ar_max_namelen */
- 1, /* minimum alignment */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
+ bfd_getb64, bfd_getb_signed_64, bfd_putb64,
+ bfd_getb32, bfd_getb_signed_32, bfd_putb32,
+ bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
{_bfd_dummy_target, MY_object_p, /* bfd_check_format */
bfd_generic_archive_p, MY_core_file_p},
{bfd_false, MY_mkobject, /* bfd_set_format */
{bfd_false, MY_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
- MY_core_file_failing_command,
- MY_core_file_failing_signal,
- MY_core_file_matches_executable_p,
- MY_slurp_armap,
- MY_slurp_extended_name_table,
- MY_truncate_arname,
- MY_write_armap,
- MY_close_and_cleanup,
- MY_set_section_contents,
- MY_get_section_contents,
- MY_new_section_hook,
- MY_get_symtab_upper_bound,
- MY_get_symtab,
- MY_get_reloc_upper_bound,
- MY_canonicalize_reloc,
- MY_make_empty_symbol,
- MY_print_symbol,
- MY_get_lineno,
- MY_set_arch_mach,
- MY_openr_next_archived_file,
- MY_find_nearest_line,
- MY_generic_stat_arch_elt,
- MY_sizeof_headers,
- MY_bfd_debug_info_start,
- MY_bfd_debug_info_end,
- MY_bfd_debug_info_accumulate,
- bfd_generic_get_relocated_section_contents,
- bfd_generic_relax_section,
- bfd_generic_seclet_link,
- MY_reloc_howto_type_lookup,
- MY_make_debug_symbol,
+ BFD_JUMP_TABLE_GENERIC (MY),
+ BFD_JUMP_TABLE_COPY (MY),
+ BFD_JUMP_TABLE_CORE (MY),
+ BFD_JUMP_TABLE_ARCHIVE (MY),
+ BFD_JUMP_TABLE_SYMBOLS (MY),
+ BFD_JUMP_TABLE_RELOCS (MY),
+ BFD_JUMP_TABLE_WRITE (MY),
+ BFD_JUMP_TABLE_LINK (MY),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
(PTR) MY_backend_data,
};