/* BFD backend for MIPS BSD (a.out) binaries.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 1994 Free Software Foundation, Inc.
Written by Ralph Campbell.
This file is part of BFD, the Binary File Descriptor library.
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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 PAGE_SIZE 4096
#define SEGMENT_SIZE 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
#include "aout-target.h"
-/*
- * These really should be common to all BSD systems.
- * Also, to reduce space, should ifdef the individual cases if MINIMIZE=1.
- */
void
MY(set_arch_mach) (abfd, machtype)
bfd *abfd;
/* Determine the architecture and machine type of the object file. */
switch (machtype) {
- case M_68010:
- case M_HP200:
- arch = bfd_arch_m68k;
- machine = 68010;
- break;
-
- case M_68020:
- case M_HP300:
- arch = bfd_arch_m68k;
- machine = 68020;
- break;
-
- case M_SPARC:
- arch = bfd_arch_sparc;
- machine = 0;
- break;
-
- case M_386:
- arch = bfd_arch_i386;
- machine = 0;
- break;
-
- case M_29K:
- arch = bfd_arch_a29k;
- machine = 0;
- break;
-
- case M_HPUX:
- arch = bfd_arch_m68k;
- machine = 0;
- break;
-
case M_MIPS1:
arch = bfd_arch_mips;
machine = 3000;
#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 *
+static const reloc_howto_type *
MY(reloc_howto_type_lookup) (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
{
- extern reloc_howto_type NAME(aout,ext_howto_table)[];
- switch (bfd_get_arch (abfd))
+ if (bfd_get_arch (abfd) != bfd_arch_mips)
+ return 0;
+
+ switch (code)
{
- case bfd_arch_sparc:
- switch (code)
- {
- default:
- return 0;
-#define IDX(i,j) case i: return &NAME(aout,ext_howto_table)[j]
- IDX (BFD_RELOC_CTOR, 2);
- IDX (BFD_RELOC_32, 2);
- IDX (BFD_RELOC_HI22, 8);
- IDX (BFD_RELOC_LO10, 11);
- IDX (BFD_RELOC_32_PCREL_S2, 6);
- }
- case bfd_arch_mips:
- switch (code)
- {
- case BFD_RELOC_32:
- return (&mips_howto_table_ext[MIPS_RELOC_32]);
- case BFD_RELOC_MIPS_JMP:
- return (&mips_howto_table_ext[MIPS_RELOC_JMP]);
- case BFD_RELOC_16_PCREL_S2:
- return (&mips_howto_table_ext[MIPS_RELOC_WDISP16]);
- case BFD_RELOC_HI16:
- return (&mips_howto_table_ext[MIPS_RELOC_HI16]);
- case BFD_RELOC_HI16_S:
- return (&mips_howto_table_ext[MIPS_RELOC_HI16_S]);
- case BFD_RELOC_LO16:
- return (&mips_howto_table_ext[MIPS_RELOC_LO16]);
- default:
- return 0;
- }
+ case BFD_RELOC_CTOR:
+ case BFD_RELOC_32:
+ return (&mips_howto_table_ext[MIPS_RELOC_32]);
+ case BFD_RELOC_MIPS_JMP:
+ return (&mips_howto_table_ext[MIPS_RELOC_JMP]);
+ case BFD_RELOC_16_PCREL_S2:
+ return (&mips_howto_table_ext[MIPS_RELOC_WDISP16]);
+ case BFD_RELOC_HI16:
+ return (&mips_howto_table_ext[MIPS_RELOC_HI16]);
+ case BFD_RELOC_HI16_S:
+ return (&mips_howto_table_ext[MIPS_RELOC_HI16_S]);
+ case BFD_RELOC_LO16:
+ return (&mips_howto_table_ext[MIPS_RELOC_LO16]);
default:
return 0;
}
* 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 */
+ 0, /* exec_hdr_flags */
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) */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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) */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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,
};
projects / binutils.git / blobdiff