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authorSteve Chamberlain <sac@cygnus>1992-01-24 22:44:51 +0000
committerSteve Chamberlain <sac@cygnus>1992-01-24 22:44:51 +0000
commite98e6ec1117b83defce2b1ccce6fd4ec3877bbfb (patch)
tree9fa72011ba39d8612b300def67a0816d7dcac02b /bfd/aout-target.h
parent95a876f3fa09e75e129afbf4fab65f634f3c5ec2 (diff)
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Uses the new small reloc type now.
Currently self hosts on sun4 and sun3
Diffstat (limited to 'bfd/aout-target.h')
-rw-r--r--bfd/aout-target.h332
1 files changed, 332 insertions, 0 deletions
diff --git a/bfd/aout-target.h b/bfd/aout-target.h
new file mode 100644
index 0000000..868a9e605
--- /dev/null
+++ b/bfd/aout-target.h
@@ -0,0 +1,332 @@
+/* Define a target vector for a variant of a.out.
+ Copyright (C) 1990-1991 Free Software Foundation, Inc.
+
+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. */
+
+/* Set parameters about this a.out file that are machine-dependent.
+ This routine is called from some_aout_object_p just before it returns. */
+static bfd_target *
+DEFUN(MY(callback),(abfd),
+ bfd *abfd)
+{
+ struct internal_exec *execp = exec_hdr (abfd);
+
+/* Calculate the file positions of the parts of a newly read aout header */
+ obj_textsec (abfd)->_raw_size = N_TXTSIZE(*execp);
+
+ /* The virtual memory addresses of the sections */
+ obj_textsec (abfd)->vma = N_TXTADDR(*execp);
+ obj_datasec (abfd)->vma = N_DATADDR(*execp);
+ obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
+
+ /* The file offsets of the sections */
+ obj_textsec (abfd)->filepos = N_TXTOFF (*execp);
+ obj_datasec (abfd)->filepos = N_DATOFF (*execp);
+
+ /* The file offsets of the relocation info */
+ obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
+ obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
+
+ /* The file offsets of the string table and symbol table. */
+ obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+ obj_str_filepos (abfd) = N_STROFF (*execp);
+
+ /* Determine the architecture and machine type of the object file.
+ */
+#ifdef SET_ARCH_MACH
+ SET_ARCH_MACH(abfd, *execp);
+#else
+ bfd_default_set_arch_mach(abfd, DEFAULT_ARCH, 0);
+#endif
+
+ adata(abfd).page_size = PAGE_SIZE;
+#ifdef SEGMENT_SIZE
+ adata(abfd).segment_size = SEGMENT_SIZE;
+#else
+ adata(abfd).segment_size = PAGE_SIZE;
+#endif
+ adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+
+ return abfd->xvec;
+}
+
+#ifndef MY_object_p
+/* Finish up the reading of an a.out file header */
+
+static bfd_target *
+DEFUN(MY(object_p),(abfd),
+ bfd *abfd)
+{
+ struct external_exec exec_bytes; /* Raw exec header from file */
+ struct internal_exec exec; /* Cleaned-up exec header */
+ bfd_target *target;
+
+ if (bfd_read ((PTR) &exec_bytes, 1, EXEC_BYTES_SIZE, abfd)
+ != EXEC_BYTES_SIZE) {
+ bfd_error = wrong_format;
+ return 0;
+ }
+
+ exec.a_info = bfd_h_get_32 (abfd, exec_bytes.e_info);
+
+ if (N_BADMAG (exec)) return 0;
+
+ NAME(aout,swap_exec_header_in)(abfd, &exec_bytes, &exec);
+ target = NAME(aout,some_aout_object_p) (abfd, &exec, MY(callback));
+
+#ifdef ENTRY_CAN_BE_ZERO
+ /* The NEWSOS3 entry-point is/was 0, which (amongst other lossage)
+ * means that it isn't obvious if EXEC_P should be set.
+ * All of the following must be true for an executable:
+ * There must be no relocations, the bfd can be neither an
+ * archive nor an archive element, and the file must be executable. */
+
+ if (exec.a_trsize + exec.a_drsize == 0
+ && bfd_get_format(abfd) == bfd_object && abfd->my_archive == NULL)
+ {
+ struct stat buf;
+#ifndef S_IXUSR
+#define S_IXUSR 0100 /* Execute by owner. */
+#endif
+ if (stat(abfd->filename, &buf) == 0 && (buf.st_mode & S_IXUSR))
+ abfd->flags |= EXEC_P;
+ }
+#endif /* ENTRY_CAN_BE_ZERO */
+
+ return target;
+}
+#define MY_object_p MY(object_p)
+#endif
+
+
+#ifndef MY_mkobject
+static boolean
+DEFUN(MY(mkobject),(abfd),
+ bfd *abfd)
+{
+ if (NAME(aout,mkobject)(abfd) == false)
+ return false;
+ adata(abfd).page_size = PAGE_SIZE;
+#ifdef SEGMENT_SIZE
+ adata(abfd).segment_size = SEGMENT_SIZE;
+#else
+ adata(abfd).segment_size = PAGE_SIZE;
+#endif
+ adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+ return true;
+}
+#define MY_mkobject MY(mkobject)
+#endif
+
+/* Write an object file.
+ Section contents have already been written. We write the
+ file header, symbols, and relocation. */
+
+#ifndef MY_write_object_contents
+static boolean
+DEFUN(MY(write_object_contents),(abfd),
+ bfd *abfd)
+{
+ bfd_size_type data_pad = 0;
+ struct external_exec exec_bytes;
+ struct internal_exec *execp = exec_hdr (abfd);
+
+ WRITE_HEADERS(abfd, execp);
+ return true;
+}
+#define MY_write_object_contents MY(write_object_contents)
+#endif
+
+/* We assume BFD generic archive files. */
+#ifndef MY_openr_next_archived_file
+#define MY_openr_next_archived_file bfd_generic_openr_next_archived_file
+#endif
+#ifndef MY_generic_stat_arch_elt
+#define MY_generic_stat_arch_elt bfd_generic_stat_arch_elt
+#endif
+#ifndef MY_slurp_armap
+#define MY_slurp_armap bfd_slurp_bsd_armap
+#endif
+#ifndef MY_slurp_extended_name_table
+#define MY_slurp_extended_name_table bfd_true
+#endif
+#ifndef MY_write_armap
+#define MY_write_armap bsd_write_armap
+#endif
+#ifndef MY_truncate_arname
+#define MY_truncate_arname bfd_bsd_truncate_arname
+#endif
+
+/* No core file defined here -- configure in trad-core.c separately. */
+#ifndef MY_core_file_failing_command
+#define MY_core_file_failing_command _bfd_dummy_core_file_failing_command
+#endif
+#ifndef MY_core_file_failing_signal
+#define MY_core_file_failing_signal _bfd_dummy_core_file_failing_signal
+#endif
+#ifndef MY_core_file_matches_executable_p
+#define MY_core_file_matches_executable_p \
+ _bfd_dummy_core_file_matches_executable_p
+#endif
+#ifndef MY_core_file_p
+#define MY_core_file_p _bfd_dummy_target
+#endif
+
+#ifndef MY_bfd_debug_info_start
+#define MY_bfd_debug_info_start bfd_void
+#endif
+#ifndef MY_bfd_debug_info_end
+#define MY_bfd_debug_info_end bfd_void
+#endif
+#ifndef MY_bfd_debug_info_accumulate
+#define MY_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
+#endif
+
+#ifndef MY_core_file_failing_command
+#define MY_core_file_failing_command NAME(aout,core_file_failing_command)
+#endif
+#ifndef MY_core_file_failing_signal
+#define MY_core_file_failing_signal NAME(aout,core_file_failing_signal)
+#endif
+#ifndef MY_core_file_matches_executable_p
+#define MY_core_file_matches_executable_p NAME(aout,core_file_matches_executable_p)
+#endif
+#ifndef MY_slurp_armap
+#define MY_slurp_armap NAME(aout,slurp_armap)
+#endif
+#ifndef MY_slurp_extended_name_table
+#define MY_slurp_extended_name_table NAME(aout,slurp_extended_name_table)
+#endif
+#ifndef MY_truncate_arname
+#define MY_truncate_arname NAME(aout,truncate_arname)
+#endif
+#ifndef MY_write_armap
+#define MY_write_armap NAME(aout,write_armap)
+#endif
+#ifndef MY_close_and_cleanup
+#define MY_close_and_cleanup NAME(aout,close_and_cleanup)
+#endif
+#ifndef MY_set_section_contents
+#define MY_set_section_contents NAME(aout,set_section_contents)
+#endif
+#ifndef MY_get_section_contents
+#define MY_get_section_contents NAME(aout,get_section_contents)
+#endif
+#ifndef MY_new_section_hook
+#define MY_new_section_hook NAME(aout,new_section_hook)
+#endif
+#ifndef MY_get_symtab_upper_bound
+#define MY_get_symtab_upper_bound NAME(aout,get_symtab_upper_bound)
+#endif
+#ifndef MY_get_symtab
+#define MY_get_symtab NAME(aout,get_symtab)
+#endif
+#ifndef MY_get_reloc_upper_bound
+#define MY_get_reloc_upper_bound NAME(aout,get_reloc_upper_bound)
+#endif
+#ifndef MY_canonicalize_reloc
+#define MY_canonicalize_reloc NAME(aout,canonicalize_reloc)
+#endif
+#ifndef MY_make_empty_symbol
+#define MY_make_empty_symbol NAME(aout,make_empty_symbol)
+#endif
+#ifndef MY_print_symbol
+#define MY_print_symbol NAME(aout,print_symbol)
+#endif
+#ifndef MY_get_lineno
+#define MY_get_lineno NAME(aout,get_lineno)
+#endif
+#ifndef MY_set_arch_mach
+#define MY_set_arch_mach NAME(aout,set_arch_mach)
+#endif
+#ifndef MY_openr_next_archived_file
+#define MY_openr_next_archived_file NAME(aout,openr_next_archived_file)
+#endif
+#ifndef MY_find_nearest_line
+#define MY_find_nearest_line NAME(aout,find_nearest_line)
+#endif
+#ifndef MY_generic_stat_arch_elt
+#define MY_generic_stat_arch_elt NAME(aout,generic_stat_arch_elt)
+#endif
+#ifndef MY_sizeof_headers
+#define MY_sizeof_headers NAME(aout,sizeof_headers)
+#endif
+#ifndef MY_bfd_debug_info_start
+#define MY_bfd_debug_info_start NAME(aout,bfd_debug_info_start)
+#endif
+#ifndef MY_bfd_debug_info_end
+#define MY_bfd_debug_info_end NAME(aout,bfd_debug_info_end)
+#endif
+#ifndef MY_bfd_debug_info_accumulat
+#define MY_bfd_debug_info_accumulat NAME(aout,bfd_debug_info_accumulat)
+#endif
+
+bfd_target MY(vec) =
+{
+ TARGETNAME, /* name */
+ bfd_target_aout_flavour,
+ true, /* target byte order */
+ true, /* target headers byte order */
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG |
+ HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ ' ', /* ar_pad_char */
+ 16, /* ar_max_namelen */
+ 1, /* minimum alignment */
+#ifdef TARGET_IS_BIG_ENDIAN_P
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* data */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
+#else
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
+#endif
+ {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
+ bfd_generic_archive_p, MY_core_file_p},
+ {bfd_false, MY_mkobject, /* bfd_set_format */
+ _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, MY_write_object_contents, /* bfd_write_contents */
+ _bfd_write_archive_contents, bfd_false},
+
+ MY_core_file_failing_command,
+ MY_core_file_failing_signal,
+ MY_core_file_matches_executable_p,
+ MY_slurp_armap,
+ MY_slurp_extended_name_table,
+ MY_truncate_arname,
+ MY_write_armap,
+ MY_close_and_cleanup,
+ MY_set_section_contents,
+ MY_get_section_contents,
+ MY_new_section_hook,
+ MY_get_symtab_upper_bound,
+ MY_get_symtab,
+ MY_get_reloc_upper_bound,
+ MY_canonicalize_reloc,
+ MY_make_empty_symbol,
+ MY_print_symbol,
+ MY_get_lineno,
+ MY_set_arch_mach,
+ MY_openr_next_archived_file,
+ MY_find_nearest_line,
+ MY_generic_stat_arch_elt,
+ MY_sizeof_headers,
+ MY_bfd_debug_info_start,
+ MY_bfd_debug_info_end,
+ MY_bfd_debug_info_accumulate,
+ bfd_generic_get_relocated_section_contents
+};