From 252b5132c753830d5fd56823373aed85f2a0db63 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 3 May 1999 07:29:11 +0000 Subject: 19990502 sourceware import --- bfd/coff-tic30.c | 206 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 206 insertions(+) create mode 100644 bfd/coff-tic30.c (limited to 'bfd/coff-tic30.c') diff --git a/bfd/coff-tic30.c b/bfd/coff-tic30.c new file mode 100644 index 0000000..3ff8c59 --- /dev/null +++ b/bfd/coff-tic30.c @@ -0,0 +1,206 @@ +/* BFD back-end for TMS320C30 coff binaries. + Copyright (C) 1998 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), + {-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; + 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), + + COFF_SWAP_TABLE +}; 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