--- /dev/null
+/* 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;
+}
+\f
+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,
+};
+
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