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/* BFD back-end for TMS320C30 coff binaries. Copyright (C) 1998, 1999 Free Software Foundation, Inc. Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au) This file is part of BFD, the Binary File Descriptor library. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" #include "libbfd.h" #include "bfdlink.h" #include "coff/tic30.h" #include "coff/internal.h" #include "libcoff.h" #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (1) reloc_howto_type tic30_coff_howto_table[] = { HOWTO (R_TIC30_ABS16, 2, 1, 16, false, 0, 0, NULL, "16", false, 0x0000FFFF, 0x0000FFFF, false), HOWTO (R_TIC30_ABS24, 2, 2, 24, false, 8, complain_overflow_bitfield, NULL, "24", false, 0xFFFFFF00, 0xFFFFFF00, false), HOWTO (R_TIC30_LDP, 18, 0, 24, false, 0, complain_overflow_bitfield, NULL, "LDP", false, 0x00FF0000, 0x000000FF, false), HOWTO (R_TIC30_ABS32, 2, 2, 32, false, 0, complain_overflow_bitfield, NULL, "32", false, 0xFFFFFFFF, 0xFFFFFFFF, false), HOWTO (R_TIC30_PC16, 2, 1, 16, true, 0, complain_overflow_signed, NULL, "PCREL", false, 0x0000FFFF, 0x0000FFFF, false), EMPTY_HOWTO (-1) }; #ifndef coff_bfd_reloc_type_lookup #define coff_bfd_reloc_type_lookup tic30_coff_reloc_type_lookup /* For the case statement use the code values used in tc_gen_reloc to map to the howto table entries that match those in both the aout and coff implementations. */ reloc_howto_type * tic30_coff_reloc_type_lookup (abfd, code) bfd *abfd ATTRIBUTE_UNUSED; bfd_reloc_code_real_type code; { switch (code) { case BFD_RELOC_8: case BFD_RELOC_TIC30_LDP: return &tic30_coff_howto_table[2]; case BFD_RELOC_16: return &tic30_coff_howto_table[0]; case BFD_RELOC_24: return &tic30_coff_howto_table[1]; case BFD_RELOC_16_PCREL: return &tic30_coff_howto_table[4]; case BFD_RELOC_32: return &tic30_coff_howto_table[3]; default: return (reloc_howto_type *) NULL; } } #endif /* Turn a howto into a reloc number */ static int coff_tic30_select_reloc (howto) reloc_howto_type *howto; { return howto->type; } #define SELECT_RELOC(x,howto) x.r_type = coff_tic30_select_reloc(howto) #define BADMAG(x) TIC30BADMAG(x) #define TIC30 1 /* Customize coffcode.h */ #define __A_MAGIC_SET__ /* Code to swap in the reloc */ #define SWAP_IN_RELOC_OFFSET bfd_h_get_32 #define SWAP_OUT_RELOC_OFFSET bfd_h_put_32 #define SWAP_OUT_RELOC_EXTRA(abfd, src, dst) dst->r_stuff[0] = 'S'; \ dst->r_stuff[1] = 'C'; /* Code to turn a r_type into a howto ptr, uses the above howto table. */ static void rtype2howto (internal, dst) arelent *internal; struct internal_reloc *dst; { switch (dst->r_type) { case R_TIC30_ABS16: internal->howto = &tic30_coff_howto_table[0]; break; case R_TIC30_ABS24: internal->howto = &tic30_coff_howto_table[1]; break; case R_TIC30_ABS32: internal->howto = &tic30_coff_howto_table[3]; break; case R_TIC30_LDP: internal->howto = &tic30_coff_howto_table[2]; break; case R_TIC30_PC16: internal->howto = &tic30_coff_howto_table[4]; break; default: abort (); break; } } #define RTYPE2HOWTO(internal, relocentry) rtype2howto(internal,relocentry) /* Perform any necessary magic to the addend in a reloc entry */ #define CALC_ADDEND(abfd, symbol, ext_reloc, cache_ptr) \ cache_ptr->addend = ext_reloc.r_offset; #define RELOC_PROCESSING(relent,reloc,symbols,abfd,section) \ reloc_processing(relent, reloc, symbols, abfd, section) static void reloc_processing (relent, reloc, symbols, abfd, section) arelent *relent; struct internal_reloc *reloc; asymbol **symbols; bfd *abfd; asection *section; { relent->address = reloc->r_vaddr; rtype2howto (relent, reloc); if (reloc->r_symndx > 0) { relent->sym_ptr_ptr = symbols + obj_convert (abfd)[reloc->r_symndx]; } else { relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; } relent->addend = reloc->r_offset; relent->address -= section->vma; } #include "coffcode.h" const bfd_target tic30_coff_vec = { "coff-tic30", /* name */ bfd_target_coff_flavour, BFD_ENDIAN_BIG, /* data byte order is big */ BFD_ENDIAN_LITTLE, /* header byte order is little */ (HAS_RELOC | EXEC_P | /* object flags */ HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | WP_TEXT), (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ '_', /* leading symbol underscore */ '/', /* ar_pad_char */ 15, /* ar_max_namelen */ 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_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, coff_object_p, /* bfd_check_format */ bfd_generic_archive_p, _bfd_dummy_target}, {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ bfd_false}, {bfd_false, coff_write_object_contents, /* bfd_write_contents */ _bfd_write_archive_contents, bfd_false}, BFD_JUMP_TABLE_GENERIC (coff), BFD_JUMP_TABLE_COPY (coff), BFD_JUMP_TABLE_CORE (_bfd_nocore), BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), BFD_JUMP_TABLE_SYMBOLS (coff), BFD_JUMP_TABLE_RELOCS (coff), BFD_JUMP_TABLE_WRITE (coff), BFD_JUMP_TABLE_LINK (coff), BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), NULL, COFF_SWAP_TABLE };
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