* bfd/archive.c (_bfd_find_nested_archive): New function.
    (get_extended_arelt_filename): Add origin parameter.
    (_bfd_generic_read_ar_hdr_mag): Deal with extended name
    combined with a file offset.
    (append_relative_path): New function.
    (_bfd_get_elt_at_filepos): Deal with external members and
    nested archives.
    (bfd_generic_openr_next_archived_file): Thin archives.
    (bfd_generic_archive_p): Recognize new magic string.
    (adjust_relative_path): New function.
    (_bfd_construct_extended_name_table): Construct extended
    names for thin archive members.
    (_bfd_write_archive_contents): Emit new magic string, skip
    copying files for thin archives.
    * bfd/bfd-in.h (bfd_is_thin_archive): New macro.
    * bfd/bfd.c (struct bfd): New fields for thin archives.
    * bfd/libbfd-in.h (struct areltdata): New field for thin archives.
    * bfd/opncls.c (bfd_close): Delete BFDs for nested archives.
    * binutils/ar.c (make_thin_archive): New global flag.
    (map_over_members): Deal with full pathnames in thin archives.
    (usage, main): Add 'T' option for building thin archives.
    (replace_members): Pass thin archive flag to ar_emul_append.
    * binutils/arsup.c (ar_open): Initialize new flag.
    * binutils/binemul.c (ar_emul_append): Add new parameter for
    flattening nested archives.
    (do_ar_emul_default_append): New function.
    (ar_emul_default_append): Factored out recursive code.
    * binutils/binemul.h (ar_emul_default_append): Add new parameter.
    (struct bin_emulation_xfer_struct): New parameter for ar_append.
    * binutils/dlltool.c (gen_lib_file): Initialize thin archive flag.
    * binutils/emul_aix.c (ar_emul_aix_internal): Add new flatten
    parameter, currently unimplemented.
    All callers changed.
    * binutils/objcopy.c (copy_archive): Preserve thin archive flag.
    * binutils/doc/binutils.texi: Update ar documentation.
    * binutils/testsuite/binutils-all/ar.exp: Add thin archive tests.
    * include/aout/ar.h (ARMAGT): New magic string for thin archives.
		
	
		
			
				
	
	
		
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			55 lines
		
	
	
		
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| /* archive file definition for GNU software
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| 
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|    Copyright 2001, 2008 Free Software Foundation, Inc.
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| 
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|    This program is free software; you can redistribute it and/or modify
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|    it under the terms of the GNU General Public License as published by
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|    the Free Software Foundation; either version 2 of the License, or
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|    (at your option) any later version.
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|    
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|    This program is distributed in the hope that it will be useful,
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|    but WITHOUT ANY WARRANTY; without even the implied warranty of
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|    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|    GNU General Public License for more details.
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|    
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|    You should have received a copy of the GNU General Public License
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|    along with this program; if not, write to the Free Software
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|    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
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| 
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| /* So far this is correct for BSDish archives.  Don't forget that
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|    files must begin on an even byte boundary. */
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| 
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| #ifndef __GNU_AR_H__
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| #define __GNU_AR_H__
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| 
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| /* Note that the usual '\n' in magic strings may translate to different
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|    characters, as allowed by ANSI.  '\012' has a fixed value, and remains
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|    compatible with existing BSDish archives. */
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| 
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| #define ARMAG  "!<arch>\012"	/* For COFF and a.out archives.  */
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| #define ARMAGB "!<bout>\012"	/* For b.out archives.  */
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| #define ARMAGT "!<thin>\012"	/* For thin archives.  */
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| #define SARMAG 8
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| #define ARFMAG "`\012"
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| 
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| /* The ar_date field of the armap (__.SYMDEF) member of an archive
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|    must be greater than the modified date of the entire file, or 
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|    BSD-derived linkers complain.  We originally write the ar_date with
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|    this offset from the real file's mod-time.  After finishing the
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|    file, we rewrite ar_date if it's not still greater than the mod date.  */
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| 
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| #define ARMAP_TIME_OFFSET       60
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| 
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| struct ar_hdr
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| {
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|   char ar_name[16];		/* Name of this member.  */
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|   char ar_date[12];		/* File mtime.  */
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|   char ar_uid[6];		/* Owner uid; printed as decimal.  */
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|   char ar_gid[6];		/* Owner gid; printed as decimal.  */
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|   char ar_mode[8];		/* File mode, printed as octal.   */
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|   char ar_size[10];		/* File size, printed as decimal.  */
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|   char ar_fmag[2];		/* Should contain ARFMAG.  */
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| };
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| 
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| #endif /* __GNU_AR_H__ */
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