old-cross-binutils/gold
Cary Coutant a12074662b 2008-03-31 Cary Coutant <ccoutant@google.com>
Add thin archive support.
	* archive.cc (Archive::armagt): New const.
	(Archive::setup): Remove task parameter and calls to unlock.
	(Archive::unlock_nested_archives): New function.
	(Archive::read_header): Add nested_off parameter. Change
	all callers.
	(Archive::interpret_header): Likewise.
	(Archive::include_all_members): Change to handle thin
	archives.
	(Archive::include_member): Likewise.
	* archive.h (Archive::Archive): Add new parameters and
	initializers.
	(Archive::armagt): New const.
	(Archive::setup): Remove task parameter.
	(Archive::unlock_nested_archives): New function.
	(Archive::read_header): Add nested_off parameter.
	(Archive::interpret_header): Likewise.
	(Archive::Nested_archive_table): New typedef.
	(Archive::is_thin_archive_): New field.
	(Archive::nested_archives_): New field.
	(Archive::options_): New field.
	(Archive::dirpath_): New field.
	(Archive::task_): New field.
	* readsyms.cc (Read_symbols::do_read_symbols): Add check
	for thin archives.  Pass additional parameters to
	Archive::Archive.  Unlock the archive file after calling
	Archive::setup.
2008-04-01 20:57:36 +00:00
..
po Bump version for general release. 2008-03-21 17:48:18 +00:00
testsuite * symtab.cc (Symbol_table::do_define_as_constant): Don't force a 2008-03-29 08:39:26 +00:00
aclocal.m4 Can now do a full static link of hello, world in C or C++ 2006-11-03 18:26:11 +00:00
archive.cc 2008-03-31 Cary Coutant <ccoutant@google.com> 2008-04-01 20:57:36 +00:00
archive.h 2008-03-31 Cary Coutant <ccoutant@google.com> 2008-04-01 20:57:36 +00:00
binary.cc Add support for --format binary for input files. 2008-02-08 07:06:58 +00:00
binary.h Add support for --format binary for input files. 2008-02-08 07:06:58 +00:00
ChangeLog 2008-03-31 Cary Coutant <ccoutant@google.com> 2008-04-01 20:57:36 +00:00
common.cc * common.cc (Sort_commons::operator): Correct sorting algorithm. 2008-03-27 19:57:41 +00:00
common.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
compressed_output.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
compressed_output.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
config.in PR gold/5986 2008-03-26 23:36:46 +00:00
configure * layout.cc (Layout::layout): If we see an input section with a 2008-03-28 22:42:34 +00:00
configure.ac * layout.cc (Layout::layout): If we see an input section with a 2008-03-28 22:42:34 +00:00
configure.tgt Support creating empty output when there are no input objects. 2008-02-06 20:32:10 +00:00
debug.h PR gold/5986 2008-03-26 23:36:46 +00:00
defstd.cc Fully implement the SECTIONS clause. 2008-02-04 05:43:05 +00:00
defstd.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
dirsearch.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
dirsearch.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
dwarf_reader.cc PR gold/5986 2008-03-26 23:36:46 +00:00
dwarf_reader.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
dynobj.cc Increase maximum bucket size for dynamic hash tables. 2008-03-07 16:30:59 +00:00
dynobj.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
ehframe.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
ehframe.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
errors.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
errors.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
expression.cc Permit scripts to refer to the addresses of output sections which were 2008-02-29 00:04:06 +00:00
fileread.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
fileread.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
gold-threads.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
gold-threads.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
gold.cc From Craig Silverstein: rename some option functions in preparation 2008-03-04 18:21:43 +00:00
gold.h PR gold/5986 2008-03-26 23:36:46 +00:00
i386.cc * options.cc (options::help): Print list of supported targets. 2008-03-25 21:39:01 +00:00
layout.cc * layout.cc (Layout::layout): If we see an input section with a 2008-03-28 22:42:34 +00:00
layout.h * options.h (class General_options): Define build_id option. 2008-03-25 05:11:41 +00:00
main.cc PR gold/5986 2008-03-26 23:36:46 +00:00
Makefile.am Add support for --format binary for input files. 2008-02-08 07:06:58 +00:00
Makefile.in * layout.cc (Layout::layout): If we see an input section with a 2008-03-28 22:42:34 +00:00
merge.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
merge.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
NEWS * NEWS: New file. 2008-03-25 21:55:29 +00:00
object.cc PR gold/5986 2008-03-26 23:36:46 +00:00
object.h * i386.cc (Target_i386::Got_type): New enum declaration. 2008-03-25 18:37:16 +00:00
options.cc PR gold/5986 2008-03-26 23:36:46 +00:00
options.h * options.h (class General_options): Define build_id option. 2008-03-25 05:11:41 +00:00
output.cc * output.cc 2008-03-29 08:09:55 +00:00
output.h * layout.cc (Layout::layout): If we see an input section with a 2008-03-28 22:42:34 +00:00
parameters.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
parameters.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
pread.c Rework File_read interface. Get file size. Use pread when 2007-09-25 06:43:17 +00:00
README * README: Rewrite, with some notes on unsupported features. 2008-03-25 21:14:45 +00:00
readsyms.cc 2008-03-31 Cary Coutant <ccoutant@google.com> 2008-04-01 20:57:36 +00:00
readsyms.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
reloc-types.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
reloc.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
reloc.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
resolve.cc * i386.cc (Target_i386::Got_type): New enum declaration. 2008-03-25 18:37:16 +00:00
script-c.h Support -d/--define-common. 2008-02-28 20:35:39 +00:00
script-sections.cc Permit scripts to refer to the addresses of output sections which were 2008-02-29 00:04:06 +00:00
script-sections.h Permit scripts to refer to the addresses of output sections which were 2008-02-29 00:04:06 +00:00
script.cc PR gold/5986 2008-03-26 23:36:46 +00:00
script.h PR gold/5986 2008-03-26 23:36:46 +00:00
stringpool.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
stringpool.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
symtab.cc * symtab.cc (Symbol_table::do_define_as_constant): Don't force a 2008-03-29 08:39:26 +00:00
symtab.h * i386.cc (Target_i386::Got_type): New enum declaration. 2008-03-25 18:37:16 +00:00
target-reloc.h From Craig Silverstein: implement -z defs. 2008-03-20 05:22:37 +00:00
target-select.cc PR gold/5986 2008-03-26 23:36:46 +00:00
target-select.h * options.cc (options::help): Print list of supported targets. 2008-03-25 21:39:01 +00:00
target.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
tls.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
token.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
version.cc PR gold/5986 2008-03-26 23:36:46 +00:00
workqueue-internal.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
workqueue-threads.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
workqueue.cc Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
workqueue.h Update copyright years. Update language files. 2008-03-13 21:04:21 +00:00
x86_64.cc PR gold/5986 2008-03-26 23:36:46 +00:00
yyscript.y * yyscript.y: Fix spelling error in comment. 2008-03-25 07:50:21 +00:00

gold is an ELF linker.  It is intended to have complete support for
ELF and to run as fast as possible on modern systems.  For normal use
it is a drop-in replacement for the older GNU linker.

gold is part of the GNU binutils.  See ../binutils/README for more
general notes, including where to send bug reports.

gold was originally developed at Google, and was contributed to the
Free Software Foundation in March 2008.  At Google it was designed by
Ian Lance Taylor, with major contributions by Cary Coutant, Craig
Silverstein, and Andrew Chatham.

The existing GNU linker manual is intended to be accurate
documentation for features which gold supports.  gold supports most of
the features of the GNU linker for ELF targets.  Notable
omissions--features of the GNU linker not currently supported in
gold--are:
  * MEMORY regions in linker scripts
  * MRI compatible linker scripts
  * linker map files (-M, -Map)
  * cross-reference reports (--cref)
  * linker garbage collection (--gc-sections)
  * position independent executables (-pie)
  * various other minor options


Notes on the code
=================

These are some notes which may be helpful to people working on the
source code of gold itself.

gold is written in C++.  It is a GNU program, and therefore follows
the GNU formatting standards as modified for C++.  Source documents in
order of decreasing precedence:
    http://www.gnu.org/prep/standards/
    http://gcc.gnu.org/onlinedocs/libstdc++/17_intro/C++STYLE
    http://www.zembu.com/eng/procs/c++style.html

The linker is intended to have complete support for cross-compilation,
while still supporting the normal case of native linking as fast as
possible.  In order to do this, many classes are actually templates
whose parameter is the ELF file class (e.g., 32 bits or 64 bits).  The
C++ code is the same, but we don't pay the execution time cost of
always using 64-bit integers if the target is 32 bits.  Many of these
class templates also have an endianness parameter: true for
big-endian, false for little-endian.

The linker is multi-threaded.  The Task class represents a single unit
of work.  Task objects are stored on a single Workqueue object.  Tasks
communicate via Task_token objects.  Task_token objects are only
manipulated while holding the master Workqueue lock.  Relatively few
mutexes are used.