Modified Files:

	ChangeLog targets.c Makefile.in cache.c
Added Files:
	i386os9k.c

        * i386os9k.c : new file to handle os9k format bfd.
        * Makefile.in : Handle new file i386os9k.c
        * bfd-in2.h : Add bfd_target_os9k_flavour.
        * targets.c : Add bfd_target_os9k_flavour and i386os9k_vec.
        * cache.c : Initialize cache_sentinel to 0.

1 files changed, 361 insertions, 0 deletions

diff --git a/bfd/i386os9k.c b/bfd/i386os9k.c
new file mode 100644
index 0000000000..ba3e5b1e54
--- /dev/null
+++ b/bfd/i386os9k.c
@@ -0,0 +1,361 @@
+/* BFD back-end for os9000 i386 binaries.
+   Copyright 1990, 1991, 1992, 1993 1994 Free Software Foundation, Inc.
+   Written by Cygnus Support.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "bfdlink.h"
+#include "libaout.h"		/* BFD a.out internal data structures */
+#include "os9k.h"
+
+static bfd_target *os9k_callback PARAMS ((bfd *));
+
+/* Swaps the information in an executable header taken from a raw byte
+   stream memory image, into the internal exec_header structure.  */
+void
+DEFUN(os9k_swap_exec_header_in,(abfd, raw_bytes, execp),
+      bfd *abfd AND
+      mh_com *raw_bytes AND
+      struct internal_exec *execp)
+{
+  mh_com *bytes = (mh_com *)raw_bytes;
+  unsigned int dload, dmemsize, dmemstart;
+
+  /* Now fill in fields in the execp, from the bytes in the raw data.  */
+  execp->a_info   = bfd_h_get_16 (abfd, bytes->m_sync);
+  execp->a_syms   = 0;
+  execp->a_entry  = bfd_h_get_32 (abfd, bytes->m_exec);
+  execp->a_talign = 2;
+  execp->a_dalign = 2;
+  execp->a_balign = 2;
+
+  dload  = bfd_h_get_32 (abfd, bytes->m_idata);
+  execp->a_data = dload + 8;
+
+  bfd_seek(abfd, (file_ptr)dload, SEEK_SET);
+  bfd_read(&dmemstart, sizeof(dmemstart), 1, abfd);
+  bfd_read(&dmemsize, sizeof(dmemsize), 1, abfd);
+
+  execp->a_tload  = 0;
+  execp->a_dload = bfd_h_get_32 (abfd, (unsigned char *)&dmemstart);
+  execp->a_text = dload - execp->a_tload;
+  execp->a_data = bfd_h_get_32 (abfd, (unsigned char *)&dmemsize);
+  execp->a_bss = bfd_h_get_32 (abfd, bytes->m_data) - execp->a_data;
+
+  execp->a_trsize = 0;
+  execp->a_drsize = 0;
+}
+
+#if 0
+/* Swaps the information in an internal exec header structure into the
+   supplied buffer ready for writing to disk.  */
+
+PROTO(void, os9k_swap_exec_header_out,
+	  (bfd *abfd,
+	   struct internal_exec *execp,
+	   struct mh_com *raw_bytes));
+void
+DEFUN(os9k_swap_exec_header_out,(abfd, execp, raw_bytes),
+     bfd *abfd AND
+     struct internal_exec *execp AND 
+     mh_com *raw_bytes)
+{
+  mh_com *bytes = (mh_com *)raw_bytes;
+
+  /* Now fill in fields in the raw data, from the fields in the exec struct. */
+  bfd_h_put_32 (abfd, execp->a_info  , bytes->e_info);
+  bfd_h_put_32 (abfd, execp->a_text  , bytes->e_text);
+  bfd_h_put_32 (abfd, execp->a_data  , bytes->e_data);
+  bfd_h_put_32 (abfd, execp->a_bss   , bytes->e_bss);
+  bfd_h_put_32 (abfd, execp->a_syms  , bytes->e_syms);
+  bfd_h_put_32 (abfd, execp->a_entry , bytes->e_entry);
+  bfd_h_put_32 (abfd, execp->a_trsize, bytes->e_trsize);
+  bfd_h_put_32 (abfd, execp->a_drsize, bytes->e_drsize);
+  bfd_h_put_32 (abfd, execp->a_tload , bytes->e_tload);
+  bfd_h_put_32 (abfd, execp->a_dload , bytes->e_dload);
+  bytes->e_talign[0] = execp->a_talign;
+  bytes->e_dalign[0] = execp->a_dalign;
+  bytes->e_balign[0] = execp->a_balign;
+  bytes->e_relaxable[0] = execp->a_relaxable;
+}
+#endif 0
+
+static bfd_target *
+os9k_object_p (abfd)
+     bfd *abfd;
+{
+  struct internal_exec anexec;
+  mh_com exec_bytes;
+
+  if (bfd_read ((PTR) &exec_bytes, MHCOM_BYTES_SIZE, 1, abfd)
+      != MHCOM_BYTES_SIZE) {
+    bfd_error = wrong_format;
+    return 0;
+  }
+
+  anexec.a_info = bfd_h_get_16 (abfd, exec_bytes.m_sync);
+  if (N_BADMAG (anexec)) {
+    bfd_error = wrong_format;
+    return 0;
+  }
+
+  os9k_swap_exec_header_in (abfd, &exec_bytes, &anexec);
+  return aout_32_some_aout_object_p (abfd, &anexec, os9k_callback);
+}
+
+
+/* Finish up the opening of a b.out file for reading.  Fill in all the
+   fields that are not handled by common code.  */
+
+static bfd_target *
+os9k_callback (abfd)
+     bfd *abfd;
+{
+  struct internal_exec *execp = exec_hdr (abfd);
+  unsigned long bss_start;
+
+  /* Architecture and machine type */
+  bfd_set_arch_mach(abfd, bfd_arch_i386, 0);
+
+  /* The positions of the string table and symbol table.  */
+  obj_str_filepos (abfd) = 0;
+  obj_sym_filepos (abfd) = 0;
+
+  /* The alignments of the sections */
+  obj_textsec (abfd)->alignment_power = execp->a_talign;
+  obj_datasec (abfd)->alignment_power = execp->a_dalign;
+  obj_bsssec  (abfd)->alignment_power = execp->a_balign;
+
+  /* The starting addresses of the sections.  */
+  obj_textsec (abfd)->vma = execp->a_tload;
+  obj_datasec (abfd)->vma = execp->a_dload;
+
+  /* And reload the sizes, since the aout module zaps them */
+  obj_textsec (abfd)->_raw_size = execp->a_text;
+
+  bss_start = execp->a_dload + execp->a_data; /* BSS = end of data section */
+  obj_bsssec (abfd)->vma = align_power (bss_start, execp->a_balign);
+
+  /* The file positions of the sections */
+  obj_textsec (abfd)->filepos = execp->a_entry;
+  obj_datasec (abfd)->filepos = execp->a_dload;
+
+  /* The file positions of the relocation info ***
+  obj_textsec (abfd)->rel_filepos = N_TROFF(*execp);
+  obj_datasec (abfd)->rel_filepos =  N_DROFF(*execp);
+  */
+
+  adata(abfd).page_size = 1;	/* Not applicable. */
+  adata(abfd).segment_size = 1; /* Not applicable. */
+  adata(abfd).exec_bytes_size = MHCOM_BYTES_SIZE;
+
+  return abfd->xvec;
+}
+
+#if 0
+struct bout_data_struct {
+    struct aoutdata a;
+    struct internal_exec e;
+};
+
+static boolean
+os9k_mkobject (abfd)
+     bfd *abfd;
+{
+  struct bout_data_struct *rawptr;
+
+  rawptr = (struct bout_data_struct *) bfd_zalloc (abfd, sizeof (struct bout_data_struct));
+  if (rawptr == NULL) {
+      bfd_error = no_memory;
+      return false;
+    }
+
+  abfd->tdata.bout_data = rawptr;
+  exec_hdr (abfd) = &rawptr->e;
+
+  /* For simplicity's sake we just make all the sections right here. */
+  obj_textsec (abfd) = (asection *)NULL;
+  obj_datasec (abfd) = (asection *)NULL;
+  obj_bsssec (abfd) = (asection *)NULL;
+
+  bfd_make_section (abfd, ".text");
+  bfd_make_section (abfd, ".data");
+  bfd_make_section (abfd, ".bss");
+
+  return true;
+}
+
+static boolean
+os9k_write_object_contents (abfd)
+     bfd *abfd;
+{
+  struct external_exec swapped_hdr;
+
+  exec_hdr (abfd)->a_info = BMAGIC;
+
+  exec_hdr (abfd)->a_text = obj_textsec (abfd)->_raw_size;
+  exec_hdr (abfd)->a_data = obj_datasec (abfd)->_raw_size;
+  exec_hdr (abfd)->a_bss = obj_bsssec (abfd)->_raw_size;
+  exec_hdr (abfd)->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist);
+  exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
+  exec_hdr (abfd)->a_trsize = ((obj_textsec (abfd)->reloc_count) *
+                               sizeof (struct relocation_info));
+  exec_hdr (abfd)->a_drsize = ((obj_datasec (abfd)->reloc_count) *
+                               sizeof (struct relocation_info));
+
+  exec_hdr (abfd)->a_talign = obj_textsec (abfd)->alignment_power;
+  exec_hdr (abfd)->a_dalign = obj_datasec (abfd)->alignment_power;
+  exec_hdr (abfd)->a_balign = obj_bsssec (abfd)->alignment_power;
+
+  exec_hdr (abfd)->a_tload = obj_textsec (abfd)->vma;
+  exec_hdr (abfd)->a_dload = obj_datasec (abfd)->vma;
+
+  bout_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);
+
+  bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
+  bfd_write ((PTR) &swapped_hdr, 1, EXEC_BYTES_SIZE, abfd);
+
+  /* Now write out reloc info, followed by syms and strings */
+  if (bfd_get_symcount (abfd) != 0) 
+    {
+      bfd_seek (abfd, (file_ptr)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET);
+
+      if (! aout_32_write_syms (abfd))
+	return false;
+
+      bfd_seek (abfd, (file_ptr)(N_TROFF(*exec_hdr(abfd))), SEEK_SET);
+
+      if (!b_out_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
+      bfd_seek (abfd, (file_ptr)(N_DROFF(*exec_hdr(abfd))), SEEK_SET);
+
+      if (!b_out_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
+    }
+  return true;
+}
+
+static boolean
+os9k_set_section_contents (abfd, section, location, offset, count)
+     bfd *abfd;
+     sec_ptr section;
+     unsigned char *location;
+     file_ptr offset;
+      int count;
+{
+
+  if (abfd->output_has_begun == false) { /* set by bfd.c handler */
+    if ((obj_textsec (abfd) == NULL) || (obj_datasec (abfd) == NULL) /*||
+        (obj_textsec (abfd)->_cooked_size == 0) || (obj_datasec (abfd)->_cooked_size == 0)*/) {
+      bfd_error = invalid_operation;
+      return false;
+    }
+
+    obj_textsec (abfd)->filepos = sizeof(struct internal_exec);
+    obj_datasec(abfd)->filepos = obj_textsec(abfd)->filepos 
+                                 +  obj_textsec (abfd)->_raw_size;
+
+  }
+  /* regardless, once we know what we're doing, we might as well get going */
+  bfd_seek (abfd, section->filepos + offset, SEEK_SET);
+
+  if (count != 0) {
+    return (bfd_write ((PTR)location, 1, count, abfd) == count) ?true:false;
+  }
+  return true;
+}
+#endif 0
+
+static int 
+DEFUN(os9k_sizeof_headers,(ignore_abfd, ignore),
+      bfd *ignore_abfd AND
+      boolean ignore)
+{
+  return sizeof(struct internal_exec);
+}
+
+
+/***********************************************************************/
+
+/* We don't have core files.  */
+#define	aout_32_core_file_failing_command _bfd_dummy_core_file_failing_command
+#define	aout_32_core_file_failing_signal _bfd_dummy_core_file_failing_signal
+#define	aout_32_core_file_matches_executable_p	\
+				_bfd_dummy_core_file_matches_executable_p
+
+/* We use BSD-Unix generic archive files.  */
+#define	aout_32_openr_next_archived_file	bfd_generic_openr_next_archived_file
+#define	aout_32_generic_stat_arch_elt	bfd_generic_stat_arch_elt
+#define	aout_32_slurp_armap		bfd_slurp_bsd_armap
+#define	aout_32_slurp_extended_name_table	_bfd_slurp_extended_name_table
+#define	aout_32_write_armap		bsd_write_armap
+#define	aout_32_truncate_arname		bfd_bsd_truncate_arname
+
+/* We override these routines from the usual a.out file routines.  */
+#define	aout_32_canonicalize_reloc	bfd_canonicalize_reloc
+#define	aout_32_get_reloc_upper_bound	bfd_get_reloc_upper_bound
+#define	aout_32_set_section_contents	bfd_set_section_contents
+#define	aout_32_set_arch_mach		bfd_default_set_arch_mach
+#define	aout_32_sizeof_headers		os9k_sizeof_headers
+
+#define aout_32_bfd_debug_info_start		bfd_void
+#define aout_32_bfd_debug_info_end		bfd_void
+#define aout_32_bfd_debug_info_accumulate	(PROTO(void,(*),(bfd*, struct sec *))) bfd_void
+
+#define aout_32_bfd_make_debug_symbol \
+  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
+#define aout_32_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#define aout_32_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define aout_32_bfd_final_link _bfd_generic_final_link
+#define aout_32_bfd_get_relocated_section_contents  bfd_generic_get_relocated_section_contents
+#define aout_32_bfd_relax_section                   bfd_generic_relax_section
+#define aout_32_bfd_reloc_type_lookup \
+  ((CONST struct reloc_howto_struct *(*) PARAMS \
+((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
+
+bfd_target i386os9k_vec =
+{
+  "i386os9k",				/* name */
+  bfd_target_os9k_flavour,
+  false,				/* data byte order is little */
+  false,				/* hdr byte order is big */
+  (HAS_RELOC | EXEC_P | WP_TEXT),	/* object flags */
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD ), /* section flags */
+  0,					/* symbol leading char */
+  ' ',					/* ar_pad_char */
+  16,					/* ar_max_namelen */
+  2,					/* minumum alignment power */
+
+  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
+     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* 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, os9k_object_p, /* bfd_check_format */
+   bfd_generic_archive_p, _bfd_dummy_target},
+ {bfd_false, bfd_false,	/* bfd_set_format */
+   _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, bfd_false, /* bfd_write_contents */
+   _bfd_write_archive_contents, bfd_false},
+
+  JUMP_TABLE(aout_32),
+  (PTR) 0,
+};
+