binutils-gdb/gold
Sriraman Tallam 4cf7a849ef 2011-02-11 Sriraman Tallam <tmsriram@google.com>
* output.cc (Output_section::add_input_section): Delay fill
	generation for section ordering.
2011-02-12 03:19:24 +00:00
..
po
testsuite gold: fix testsuite dependencies. 2010-12-16 18:28:44 +00:00
aclocal.m4
archive.cc * plugin.cc (class Plugin_rescan): Define new class. 2011-01-24 21:48:40 +00:00
archive.h * plugin.cc (class Plugin_rescan): Define new class. 2011-01-24 21:48:40 +00:00
arm-reloc-property.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
arm-reloc-property.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
arm-reloc.def Fix typos in gold. 2010-12-14 19:03:30 +00:00
arm.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
attributes.cc
attributes.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
binary.cc
binary.h
ChangeLog 2011-02-11 Sriraman Tallam <tmsriram@google.com> 2011-02-12 03:19:24 +00:00
common.cc
common.h
compressed_output.cc
compressed_output.h
config.in
configure * configure.ac: For --enable-gold, handle value `default' instead of 2010-11-23 13:39:57 +00:00
configure.ac * configure.ac: For --enable-gold, handle value `default' instead of 2010-11-23 13:39:57 +00:00
configure.tgt
copy-relocs.cc PR gold/10708 2010-11-05 21:14:33 +00:00
copy-relocs.h
cref.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
cref.h
debug.h * debug.h (DEBUG_INCREMENTAL): New flag. 2010-10-14 22:10:22 +00:00
defstd.cc
defstd.h
descriptors.cc
descriptors.h
dirsearch.cc
dirsearch.h
dwarf_reader.cc * dwarf_reader.cc (Sized_dwarf_line_info::read_lines): Only keep 2010-12-20 18:37:36 +00:00
dwarf_reader.h * dwarf_reader.cc (Sized_dwarf_line_info::read_lines): Only keep 2010-12-20 18:37:36 +00:00
dynobj.cc
dynobj.h
ehframe.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
ehframe.h
errors.cc
errors.h
expression.cc 2010-11-18 Doug Kwan <dougkwan@google.com> 2010-11-18 23:25:08 +00:00
ffsll.c
fileread.cc gold: fix race in FileRead::~View. 2010-12-14 21:33:26 +00:00
fileread.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
freebsd.h
ftruncate.c
gc.cc
gc.h
gold-threads.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
gold-threads.h
gold.cc PR gold/10708 2010-11-05 21:14:33 +00:00
gold.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
i386.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
icf.cc 2011-02-02 Sriraman Tallam <tmsriram@google.com> 2011-02-02 21:55:29 +00:00
icf.h 2011-02-02 Sriraman Tallam <tmsriram@google.com> 2011-02-02 21:55:29 +00:00
incremental-dump.cc
incremental.cc * debug.h (DEBUG_INCREMENTAL): New flag. 2010-10-14 22:10:22 +00:00
incremental.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
int_encoding.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
int_encoding.h
layout.cc * layout.cc (Layout::layout_eh_frame): Mark a writable .eh_frame 2011-01-10 21:57:31 +00:00
layout.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
main.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
Makefile.am
Makefile.in
mapfile.cc PR gold/10708 2010-11-05 21:14:33 +00:00
mapfile.h
merge.cc
merge.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
mremap.c
NEWS
object.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
object.h PR gold/12316 2011-02-10 01:12:37 +00:00
options.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
options.h * options.h (class General_options): Accept 2011-01-25 06:08:47 +00:00
output.cc 2011-02-11 Sriraman Tallam <tmsriram@google.com> 2011-02-12 03:19:24 +00:00
output.h * output.h (Output_data_reloc::add_output_section): Pass OD instead 2010-12-23 19:56:14 +00:00
parameters.cc * debug.h (DEBUG_INCREMENTAL): New flag. 2010-10-14 22:10:22 +00:00
parameters.h * debug.h (DEBUG_INCREMENTAL): New flag. 2010-10-14 22:10:22 +00:00
plugin.cc 2010-02-08 Rafael Ávila de Espíndola <respindola@mozilla.com> 2011-02-08 05:03:19 +00:00
plugin.h * plugin.cc (class Plugin_rescan): Define new class. 2011-01-24 21:48:40 +00:00
powerpc.cc gold/ 2010-11-11 10:43:30 +00:00
pread.c
README * README: Update compilers known to work and fail. 2010-12-01 16:51:44 +00:00
readsyms.cc * plugin.cc (class Plugin_rescan): Define new class. 2011-01-24 21:48:40 +00:00
readsyms.h * plugin.cc (class Plugin_rescan): Define new class. 2011-01-24 21:48:40 +00:00
reduced_debug_output.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
reduced_debug_output.h
reloc-types.h
reloc.cc PR gold/12316 2011-02-10 01:12:37 +00:00
reloc.h * dwarf_reader.h (class Sized_dwarf_line_info): Add 2010-12-01 19:49:22 +00:00
resolve.cc * resolve.cc (symbol_to_bits): Report the value of the unsupported 2010-10-11 20:04:04 +00:00
script-c.h * README: Remove claim that MEMORY is not supported. 2010-09-08 16:10:33 +00:00
script-sections.cc * script-sections.cc (Sort_output_sections::operator()): Sort TLS 2011-01-04 21:46:06 +00:00
script-sections.h * script-sections.h (class Script_sections): Make 2010-10-12 19:21:41 +00:00
script.cc * script.cc (script_add_extern): Rewrite to use 2011-01-25 18:55:24 +00:00
script.h PR ld/12001 2010-11-03 17:18:23 +00:00
sparc.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
stringpool.cc
stringpool.h
symtab.cc * symtab.cc (Odr_violation_compare::operator()): Sort by just the 2011-02-05 01:52:40 +00:00
symtab.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
target-reloc.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
target-select.cc
target-select.h
target.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
target.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
timer.cc Fix typos in gold. 2010-12-14 19:03:30 +00:00
timer.h Fix typos in gold. 2010-12-14 19:03:30 +00:00
tls.h
TODO
token.h
version.cc * version.cc (version_string): Bump to 1.11. 2011-01-24 22:27:55 +00:00
workqueue-internal.h
workqueue-threads.cc
workqueue.cc
workqueue.h
x86_64.cc PR gold/12324 2010-12-15 15:35:27 +00:00
yyscript.y * README: Remove claim that MEMORY is not supported. 2010-09-08 16:10:33 +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:
  * MRI compatible linker scripts
  * cross-reference reports (--cref)
  * 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.


Build requirements
==================

The gold source code uses templates heavily.  Building it requires a
recent version of g++.  g++ 4.0.3 and 4.1.3 are known to work.  g++
3.2, 3.4.3, and 4.1.2 are known to fail.

The linker script parser uses features which are only in newer
versions of bison.  bison 2.3 is known to work.  bison 1.26 is known
to fail.  If you are building gold from an official binutils release,
the bison output should already be included.