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- #define N_HEADER_IN_TEXT(x) 1
- #define N_TXTADDR(x) \
- (N_MAGIC(x) != ZMAGIC ? (x).a_entry : \
- TEXT_START_ADDR + EXEC_BYTES_SIZE \
- )
- #define N_DATADDR(x) (N_TXTADDR(x)+N_TXTSIZE(x))
- #define TEXT_START_ADDR 4096
- #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) CONCAT2 (mipsbsd_,OP)
- #include "sysdep.h"
- #include "bfd.h"
- #include "libbfd.h"
- #include "libaout.h"
- #define SET_ARCH_MACH(ABFD, EXEC) \
- MY(set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
- MY(choose_reloc_size) (ABFD);
- static void MY(set_arch_mach) (bfd *, unsigned long);
- static void MY(choose_reloc_size) (bfd *);
- #define MY_write_object_contents MY(write_object_contents)
- static bfd_boolean MY(write_object_contents) (bfd *);
- #define MY_bfd_reloc_type_lookup mipsbsd_reloc_type_lookup
- #define MY_bfd_reloc_name_lookup mipsbsd_reloc_name_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"
- static bfd_reloc_status_type mips_fix_jmp_addr
- (bfd *, arelent *, struct bfd_symbol *, void *, asection *,
- bfd *, char **);
- long MY(canonicalize_reloc) (bfd *, sec_ptr, arelent **, asymbol **);
- static void
- MY(set_arch_mach) (bfd *abfd, unsigned long machtype)
- {
- enum bfd_architecture arch;
- unsigned int machine;
-
- switch (machtype)
- {
- case M_MIPS1:
- arch = bfd_arch_mips;
- machine = bfd_mach_mips3000;
- break;
- case M_MIPS2:
- arch = bfd_arch_mips;
- machine = bfd_mach_mips4000;
- break;
- default:
- arch = bfd_arch_obscure;
- machine = 0;
- break;
- }
- bfd_set_arch_mach (abfd, arch, machine);
- }
- static void
- MY (choose_reloc_size) (bfd *abfd)
- {
- switch (bfd_get_arch (abfd))
- {
- case bfd_arch_sparc:
- case bfd_arch_mips:
- obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
- break;
- default:
- obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
- break;
- }
- }
- static bfd_boolean
- MY (write_object_contents) (bfd *abfd)
- {
- struct external_exec exec_bytes;
- struct internal_exec *execp = exec_hdr (abfd);
-
- switch (bfd_get_arch (abfd))
- {
- case bfd_arch_m68k:
- switch (bfd_get_mach (abfd))
- {
- case bfd_mach_m68010:
- N_SET_MACHTYPE (*execp, M_68010);
- break;
- default:
- case bfd_mach_m68020:
- N_SET_MACHTYPE (*execp, M_68020);
- break;
- }
- break;
- case bfd_arch_sparc:
- N_SET_MACHTYPE (*execp, M_SPARC);
- break;
- case bfd_arch_i386:
- N_SET_MACHTYPE (*execp, M_386);
- break;
- case bfd_arch_mips:
- switch (bfd_get_mach (abfd))
- {
- case bfd_mach_mips4000:
- case bfd_mach_mips6000:
- N_SET_MACHTYPE (*execp, M_MIPS2);
- break;
- default:
- N_SET_MACHTYPE (*execp, M_MIPS1);
- break;
- }
- break;
- default:
- N_SET_MACHTYPE (*execp, M_UNKNOWN);
- }
- MY (choose_reloc_size) (abfd);
- WRITE_HEADERS (abfd, execp);
- return TRUE;
- }
- #define MIPS_RELOC_32 0
- #define MIPS_RELOC_JMP 1
- #define MIPS_RELOC_WDISP16 2
- #define MIPS_RELOC_HI16 3
- #define MIPS_RELOC_HI16_S 4
- #define MIPS_RELOC_LO16 5
- static bfd_reloc_status_type
- mips_fix_jmp_addr (bfd *abfd ATTRIBUTE_UNUSED,
- arelent *reloc_entry,
- struct bfd_symbol *symbol,
- void * data ATTRIBUTE_UNUSED,
- asection *input_section,
- bfd *output_bfd,
- char **error_message ATTRIBUTE_UNUSED)
- {
- bfd_vma relocation, pc;
-
- if (output_bfd != (bfd *) NULL)
- return bfd_reloc_continue;
-
- if (bfd_is_und_section (symbol->section)
- && (symbol->flags & BSF_WEAK) == 0)
- return bfd_reloc_undefined;
-
- 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;
- }
- static bfd_reloc_status_type
- mips_fix_hi16_s (bfd *abfd ATTRIBUTE_UNUSED,
- arelent *reloc_entry,
- asymbol *symbol,
- void * data ATTRIBUTE_UNUSED,
- asection *input_section ATTRIBUTE_UNUSED,
- bfd *output_bfd,
- char **error_message ATTRIBUTE_UNUSED)
- {
- bfd_vma relocation;
-
- if (output_bfd != (bfd *)NULL)
- return bfd_reloc_continue;
-
- if (bfd_is_und_section (symbol->section)
- && (symbol->flags & BSF_WEAK) == 0)
- return bfd_reloc_undefined;
-
- 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;
- if (relocation & 0x8000)
- reloc_entry->addend += 0x10000;
- return bfd_reloc_continue;
- }
- static reloc_howto_type mips_howto_table_ext[] =
- {
- {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 *
- MY(reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
- {
- if (bfd_get_arch (abfd) != bfd_arch_mips)
- return NULL;
- switch (code)
- {
- 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 NULL;
- }
- }
- static reloc_howto_type *
- MY(reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED,
- const char *r_name)
- {
- unsigned int i;
- for (i = 0;
- i < sizeof (mips_howto_table_ext) / sizeof (mips_howto_table_ext[0]);
- i++)
- if (mips_howto_table_ext[i].name != NULL
- && strcasecmp (mips_howto_table_ext[i].name, r_name) == 0)
- return &mips_howto_table_ext[i];
- return NULL;
- }
- long
- MY(canonicalize_reloc) (bfd *abfd,
- sec_ptr section,
- arelent **relptr,
- asymbol **symbols)
- {
- arelent *tblptr = section->relocation;
- unsigned int count, c;
- extern reloc_howto_type NAME(aout,ext_howto_table)[];
-
- if (section->flags & SEC_CONSTRUCTOR)
- {
- arelent_chain *chain = section->constructor_chain;
- for (count = 0; count < section->reloc_count; count++)
- {
- *relptr++ = &chain->relent;
- chain = chain->next;
- }
- *relptr = 0;
- return section->reloc_count;
- }
- if (tblptr && section->reloc_count)
- {
- for (count = 0; count++ < section->reloc_count;)
- *relptr++ = tblptr++;
- *relptr = 0;
- return section->reloc_count;
- }
- if (!NAME(aout,slurp_reloc_table) (abfd, section, symbols))
- return -1;
- tblptr = section->relocation;
-
- for (count = 0; count++ < section->reloc_count;)
- {
- c = tblptr->howto - NAME(aout,ext_howto_table);
- tblptr->howto = &mips_howto_table_ext[c];
- *relptr++ = tblptr++;
- }
- *relptr = 0;
- return section->reloc_count;
- }
- static const struct aout_backend_data MY(backend_data) =
- {
- 0,
- 1,
- 0,
- 0,
- TARGET_PAGE_SIZE,
- MY_set_sizes,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0
- };
- extern const bfd_target mips_aout_be_vec;
- const bfd_target mips_aout_le_vec =
- {
- "a.out-mips-little",
- bfd_target_aout_flavour,
- BFD_ENDIAN_LITTLE,
- BFD_ENDIAN_LITTLE,
- (HAS_RELOC | EXEC_P |
- HAS_LINENO | HAS_DEBUG |
- 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,
- ' ',
- 15,
- 0,
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16,
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16,
- {_bfd_dummy_target, MY_object_p,
- bfd_generic_archive_p, MY_core_file_p},
- {bfd_false, MY_mkobject,
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, MY_write_object_contents,
- _bfd_write_archive_contents, bfd_false},
- 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),
- & mips_aout_be_vec,
- MY_backend_data
- };
- const bfd_target mips_aout_be_vec =
- {
- "a.out-mips-big",
- bfd_target_aout_flavour,
- BFD_ENDIAN_BIG,
- BFD_ENDIAN_BIG,
- (HAS_RELOC | EXEC_P |
- HAS_LINENO | HAS_DEBUG |
- 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,
- ' ',
- 15,
- 0,
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16,
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16,
- {_bfd_dummy_target, MY_object_p,
- bfd_generic_archive_p, MY_core_file_p},
- {bfd_false, MY_mkobject,
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, MY_write_object_contents,
- _bfd_write_archive_contents, bfd_false},
- 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),
- & mips_aout_le_vec,
- MY_backend_data
- };
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