Initial revision

1 files changed, 270 insertions, 0 deletions

diff --git a/bfd/coff-i960.c b/bfd/coff-i960.c
new file mode 100644
index 0000000..3b8e0d6
--- /dev/null
+++ b/bfd/coff-i960.c
@@ -0,0 +1,270 @@
+/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of BFD, the Binary File Diddler.
+
+BFD 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 1, or (at your option)
+any later version.
+
+BFD 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 BFD; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* $Id$ */
+
+#define I960 1
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+#include "libcoff.h"		/* to allow easier abstraction-breaking */
+
+
+
+#include "intel-coff.h"
+
+#define CALLS	 0x66003800	/* Template for 'calls' instruction	*/
+#define BAL	 0x0b000000	/* Template for 'bal' instruction	*/
+#define BAL_MASK 0x00ffffff
+
+static bfd_reloc_status_enum_type 
+optcall_callback(abfd, reloc_entry, symbol_in, data, ignore_input_section)
+bfd *abfd;
+arelent *reloc_entry;
+asymbol *symbol_in;
+unsigned char *data;
+asection *ignore_input_section;
+{
+  /* This item has already been relocated correctly, but we may be
+   * able to patch in yet better code - done by digging out the
+   * correct info on this symbol */
+  bfd_reloc_status_enum_type result;
+  coff_symbol_type *cs = coffsymbol(symbol_in);
+
+  /* So the target symbol has to be off coff type, and the symbol 
+     has to have the correct native information within it
+     */
+  if ((cs->symbol.the_bfd->xvec->flavour != bfd_target_coff_flavour_enum)
+      || (cs->native == (struct syment *)NULL)) {
+     /* This is interesting, consider the case where we're outputting */
+     /* coff from a mix n match input, linking from coff to a symbol */
+     /* defined in a bout file will cause this match to be true. Should */
+     /* I complain ? - This will only work if the bout symbol is non */
+     /* leaf. */
+     result = bfd_reloc_dangerous;
+
+  }
+  else  {
+    switch (cs->native->n_sclass) 
+      {
+      case C_LEAFSTAT:
+      case C_LEAFEXT:
+  	/* This is a call to a leaf procedure, replace instruction with a bal
+	 to the correct location */
+	{
+ 	 union auxent *aux = (union auxent *)(cs->native+2);
+	  int word = bfd_getlong(abfd, data + reloc_entry->address);
+	  BFD_ASSERT(cs->native->n_numaux==2);
+	  /* We replace the original call instruction with a bal to */
+	  /* the bal entry point - the offset of which is described in the */
+	  /* 2nd auxent of the original symbol. We keep the native sym and */
+	  /* auxents untouched, so the delta between the two is the */
+	  /* offset of the bal entry point */
+	  word = ((word + (aux->x_bal.x_balntry - cs->native->n_value))
+		  & BAL_MASK) | BAL;
+  	  bfd_putlong(abfd, word,  data+reloc_entry->address);
+  	}
+	result = bfd_reloc_ok;
+	break;
+      case C_SCALL:
+	{
+	  /* This is a call to a system call, replace with a calls to # */
+	  BFD_ASSERT(0);
+	}
+	break;
+      default:
+	result = bfd_reloc_ok;
+	break;
+      }
+  }
+  return result;
+}
+
+
+
+static reloc_howto_type howto_table[] = 
+{
+  {0},
+  {1},
+  {2},
+  {3},
+  {4},
+  {5},
+  {6},
+  {7},
+  {8},
+  {9},
+  {10},
+  {11},
+  {12},
+  {13},
+  {14},
+  {15},
+  {16},
+
+  { (unsigned int) R_RELLONG, 0, 2, 32,false, 0, true, true, 0,"rellong", true, 0xffffffff},
+  {18},
+  {19},
+  {20},
+  {21},
+  {22},
+  {23},
+  {24},
+
+  {  R_IPRMED, 0, 2, 24,true,0, true, true,0,"iprmed ", true, 0x00ffffff},
+  {26},
+ 
+  {  R_OPTCALL, 0,2,24,true,0, true, true, optcall_callback, "optcall", true, 0x00ffffff},
+
+};
+
+
+
+#define BADMAG(x) I960BADMAG(x)
+#include "coff-code.h"
+
+
+
+bfd_target icoff_big_vec =
+{
+  "coff-Intel-big",		/* name */
+  bfd_target_coff_flavour_enum,
+  false,			/* data byte order is little */
+  true,				/* header byte order is big */
+
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+  0,				/* valid reloc types */
+  '/',				/* ar_pad_char */
+  15,				/* ar_max_namelen */
+  coff_close_and_cleanup,	/* _close_and_cleanup */
+  coff_set_section_contents,	/* bfd_set_section_contents */
+  coff_get_section_contents,	/* bfd_get_section_contents */
+  coff_new_section_hook,	/* new_section_hook */
+  _bfd_dummy_core_file_failing_command, /* _core_file_failing_command */
+  _bfd_dummy_core_file_failing_signal, /* _core_file_failing_signal */
+  _bfd_dummy_core_file_matches_executable_p, /* _core_file_matches_ex...p */
+
+  bfd_slurp_coff_armap,		/* bfd_slurp_armap */
+  _bfd_slurp_extended_name_table, /* bfd_slurp_extended_name_table*/
+#if 0				/*  */
+  bfd_dont_truncate_arname,	/* bfd_truncate_arname */
+#else
+  bfd_bsd_truncate_arname,
+#endif
+
+  coff_get_symtab_upper_bound,	/* get_symtab_upper_bound */
+  coff_get_symtab,		/* canonicalize_symtab */
+  (void (*)())bfd_false,	/* bfd_reclaim_symbol_table */
+  coff_get_reloc_upper_bound,	/* get_reloc_upper_bound */
+  coff_canonicalize_reloc,	/* bfd_canonicalize_reloc */
+  (void (*)())bfd_false,	/* bfd_reclaim_reloc */
+
+  coff_get_symcount_upper_bound, /* bfd_get_symcount_upper_bound */
+  coff_get_first_symbol,	/* bfd_get_first_symbol */
+  coff_get_next_symbol,		/* bfd_get_next_symbol */
+  coff_classify_symbol,		/* bfd_classify_symbol */
+  coff_symbol_hasclass,		/* bfd_symbol_hasclass */
+  coff_symbol_name,		/* bfd_symbol_name */
+  coff_symbol_value,		/* bfd_symbol_value */
+
+  _do_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* data */
+  _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* 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},
+  coff_make_empty_symbol,
+  coff_print_symbol,
+  coff_get_lineno,
+  coff_set_arch_mach,
+  coff_write_armap,
+  bfd_generic_openr_next_archived_file,
+    coff_find_nearest_line,
+    bfd_generic_stat_arch_elt /* bfd_stat_arch_elt */
+  };
+
+
+
+bfd_target icoff_little_vec =
+{
+  "coff-Intel-little",		/* name */
+  bfd_target_coff_flavour_enum,
+  false,			/* data byte order is little */
+  false,			/* header byte order is little */
+
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+  0,				/* valid reloc types */
+  '/',				/* ar_pad_char */
+  15,				/* ar_max_namelen */
+  coff_close_and_cleanup,	/* _close_and_cleanup */
+  coff_set_section_contents,	/* bfd_set_section_contents */
+  coff_get_section_contents,	/* bfd_get_section_contents */
+  coff_new_section_hook,	/* new_section_hook */
+  _bfd_dummy_core_file_failing_command, /* _core_file_failing_command */
+  _bfd_dummy_core_file_failing_signal, /* _core_file_failing_signal */
+  _bfd_dummy_core_file_matches_executable_p, /* _core_file_matches_ex...p */
+
+  bfd_slurp_coff_armap,		/* bfd_slurp_armap */
+  _bfd_slurp_extended_name_table, /* bfd_slurp_extended_name_table*/
+#if 0				/*  */
+  bfd_dont_truncate_arname,	/* bfd_truncate_arname */
+#else
+  bfd_bsd_truncate_arname,
+#endif
+  coff_get_symtab_upper_bound,	/* get_symtab_upper_bound */
+  coff_get_symtab,		/* canonicalize_symtab */
+  (void (*)())bfd_false,	/* bfd_reclaim_symbol_table */
+  coff_get_reloc_upper_bound,	/* get_reloc_upper_bound */
+  coff_canonicalize_reloc,	/* bfd_canonicalize_reloc */
+  (void (*)())bfd_false,	/* bfd_reclaim_reloc */
+
+  coff_get_symcount_upper_bound, /* bfd_get_symcount_upper_bound */
+  coff_get_first_symbol,	/* bfd_get_first_symbol */
+  coff_get_next_symbol,		/* bfd_get_next_symbol */
+  coff_classify_symbol,		/* bfd_classify_symbol */
+  coff_symbol_hasclass,		/* bfd_symbol_hasclass */
+  coff_symbol_name,		/* bfd_symbol_name */
+  coff_symbol_value,		/* bfd_symbol_value */
+
+  _do_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* data */
+  _do_getllong, _do_putllong, _do_getlshort, _do_putlshort, /* hdrs */
+
+  {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
+     bfd_generic_archive_p, _bfd_dummy_target},
+  {bfd_false, coff_mkobject,	/* bfd_set_format */
+     _bfd_generic_mkarchive, bfd_false},
+  coff_make_empty_symbol,
+  coff_print_symbol,
+  coff_get_lineno,
+  coff_set_arch_mach,
+  coff_write_armap,
+  bfd_generic_openr_next_archived_file,
+  coff_find_nearest_line,
+    bfd_generic_stat_arch_elt /* bfd_stat_arch_elt */
+};
+
+