19990502 sourceware importbinu_ss_19990502

1 files changed, 206 insertions, 0 deletions

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
+};