binutils-gdb/gold
Cary Coutant c1a8d56e4e gold/
* dwp.cc (usage): Add file and exit status parameters;
	add --help and --version options.
	(print_version): New function.
	(main): Add --help and --version options.
2012-10-29 23:01:51 +00:00
..
po Updated Vietnamese translation. 2012-08-09 14:46:44 +00:00
testsuite Add final_layout_sequence.txt to MOSTLYCLEANFILES 2012-10-26 00:50:05 +00:00
aclocal.m4 * configure.in (AC_CHECK_FUNCS): Add setlocale. 2012-04-05 08:43:41 +00:00
archive.cc * archive.cc (Library_base::should_include_member): Check for 2012-04-17 00:28:41 +00:00
archive.h PR gold/12163 2011-06-02 20:13:23 +00:00
arm-reloc-property.cc
arm-reloc-property.h
arm-reloc.def
arm.cc * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
attributes.cc
attributes.h
binary.cc * binary.cc (Binary_to_elf::sized_convert): Don't crash if the 2011-05-29 17:17:39 +00:00
binary.h
ChangeLog gold/ 2012-10-29 23:01:51 +00:00
common.cc * arm.cc (Arm_relocate_functions::abs16): Remove unused typedef. 2012-07-11 14:18:40 +00:00
common.h
compressed_output.cc
compressed_output.h
config.in * config.in: Disable sanity check for kfreebsd. 2012-09-10 22:30:57 +00:00
configure Add support for tilegx in gold. 2012-09-15 17:11:28 +00:00
configure.ac Add support for tilegx in gold. 2012-09-15 17:11:28 +00:00
configure.tgt Add support for tilegx in gold. 2012-09-15 17:11:28 +00:00
copy-relocs.cc * object.h (Relobj::local_symbol_value): New function. 2011-12-19 21:07:16 +00:00
copy-relocs.h * copy-relocs.cc (Copy_relocs::copy_reloc): Call make_copy_reloc 2011-06-08 03:50:12 +00:00
cref.cc
cref.h
debug.h
defstd.cc
defstd.h
descriptors.cc * descriptors.cc (set_close_on_exec): New function. 2011-04-22 23:20:28 +00:00
descriptors.h
dirsearch.cc 2011-11-17 Sterling Augustine <saugustine@google.com> 2011-11-17 17:46:54 +00:00
dirsearch.h 2011-11-17 Sterling Augustine <saugustine@google.com> 2011-11-17 17:46:54 +00:00
dwarf_reader.cc gold/ 2012-10-23 21:41:37 +00:00
dwarf_reader.h gold/ 2012-10-23 21:41:37 +00:00
dwp.cc gold/ 2012-10-29 23:01:51 +00:00
dwp.h gold/ 2012-10-24 02:26:39 +00:00
dynobj.cc * dynobj.cc (Sized_dynobj::do_get_global_symbol_counts): Call 2012-06-04 20:00:31 +00:00
dynobj.h 2012-03-21 Cary Coutant <ccoutant@google.com> 2012-03-21 19:02:22 +00:00
ehframe.cc * arm.cc (Arm_relocate_functions::abs16): Remove unused typedef. 2012-07-11 14:18:40 +00:00
ehframe.h PR gold/12571 2011-07-01 22:05:01 +00:00
errors.cc * common.cc (Symbol_table::do_allocate_commons_list): Call 2011-06-08 04:43:28 +00:00
errors.h * common.cc (Symbol_table::do_allocate_commons_list): Call 2011-06-08 04:43:28 +00:00
expression.cc * object.h (Relobj::local_symbol_value): New function. 2011-12-19 21:07:16 +00:00
ffsll.c
fileread.cc gold/ 2012-10-23 21:29:20 +00:00
fileread.h gold/ 2012-10-23 21:29:20 +00:00
freebsd.h * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF. 2012-05-02 21:37:24 +00:00
ftruncate.c
gc.cc
gc.h * target.h (Target::gc_mark_symbol, do_gc_mark_symbol): New functions. 2012-09-09 03:43:51 +00:00
gdb-index.cc gold/ 2012-10-23 21:41:37 +00:00
gdb-index.h 2012-09-10 Sterling Augustine <saugustine@google.com> 2012-09-10 19:16:33 +00:00
gold-threads.cc
gold-threads.h
gold.cc PR gold/14726 2012-10-17 11:58:39 +00:00
gold.h gold/ 2012-10-24 02:26:39 +00:00
i386.cc * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
icf.cc * target.h (Target::can_check_for_function_pointers): Rewrite. 2011-06-28 21:15:42 +00:00
icf.h 2011-02-02 Sriraman Tallam <tmsriram@google.com> 2011-02-02 21:55:29 +00:00
incremental-dump.cc * incremental-dump.cc (find_input_containing_global): Replace 2012-04-24 22:05:28 +00:00
incremental.cc * arm.cc (Arm_relocate_functions::abs16): Remove unused typedef. 2012-07-11 14:18:40 +00:00
incremental.h PR gold/14570 2012-09-12 18:29:18 +00:00
int_encoding.cc * int_encoding.cc (read_unsigned_LEB_128): Replaced with inline 2012-01-25 07:34:55 +00:00
int_encoding.h * int_encoding.cc (read_unsigned_LEB_128): Replaced with inline 2012-01-25 07:34:55 +00:00
layout.cc 2012-10-16 Sriraman Tallam <tmsriram@google.com> 2012-10-16 16:50:32 +00:00
layout.h Patch adds support to allow plugins to map selected subset of sections to unique 2012-08-24 18:35:35 +00:00
main.cc 2012-03-21 Cary Coutant <ccoutant@google.com> 2012-03-21 19:02:22 +00:00
Makefile.am gold/ 2012-10-24 02:26:39 +00:00
Makefile.in gold/ 2012-10-24 02:26:39 +00:00
mapfile.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
mapfile.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
merge.cc * dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info): 2012-02-29 21:22:29 +00:00
merge.h
mremap.c * configure.ac: Check for sys/mman.h and mmap. Check for mremap 2011-04-12 18:06:16 +00:00
nacl.cc * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF. 2012-05-02 21:37:24 +00:00
nacl.h * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF. 2012-05-02 21:37:24 +00:00
NEWS
object.cc PR gold/14727 2012-10-18 05:36:02 +00:00
object.h gold/ 2012-10-23 21:34:58 +00:00
options.cc * options.cc (General_options::finalize): Disallow -pie and -static. 2012-02-15 00:56:16 +00:00
options.h gold/ 2012-06-07 05:14:44 +00:00
output.cc * i386.cc (Output_data_plt_i386::address_for_global, 2012-10-05 00:45:54 +00:00
output.h * i386.cc (Output_data_plt_i386::address_for_global, 2012-10-05 00:45:54 +00:00
parameters.cc * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF. 2012-05-02 21:37:24 +00:00
parameters.h * gold.cc: Include timer.h. 2011-10-18 00:06:10 +00:00
plugin.cc Patch adds support to allow plugins to map selected subset of sections to unique 2012-08-24 18:35:35 +00:00
plugin.h 2012-03-21 Cary Coutant <ccoutant@google.com> 2012-03-21 19:02:22 +00:00
powerpc.cc * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
pread.c
README
readsyms.cc * dwarf_reader.cc (Sized_dwarf_line_info::Sized_dwarf_line_info): 2012-02-29 21:22:29 +00:00
readsyms.h * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
reduced_debug_output.cc elfcpp/ 2012-05-01 22:46:36 +00:00
reduced_debug_output.h
reloc-types.h
reloc.cc * object.h (Sized_relobj_file::emit_relocs): Delete. 2012-09-05 00:34:20 +00:00
reloc.h * arm.cc (Target_arm::do_is_defined_by_abi): Make sym a const 2012-04-26 00:07:21 +00:00
resolve.cc * resolve.cc (Symbol_table::resolve): When merging common symbols, 2012-03-13 16:08:53 +00:00
script-c.h
script-sections.cc PR ld/14265 2012-08-14 08:31:57 +00:00
script-sections.h PR ld/14265 2012-08-14 08:31:57 +00:00
script.cc 2011-11-17 Sterling Augustine <saugustine@google.com> 2011-11-17 17:46:54 +00:00
script.h PR gold/13023 2011-10-31 22:51:03 +00:00
sparc.cc * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
stringpool.cc
stringpool.h * symtab.cc (Symbol::versioned_name): New function. 2011-06-28 05:39:45 +00:00
symtab.cc * target.h (Target::gc_mark_symbol, do_gc_mark_symbol): New functions. 2012-09-09 03:43:51 +00:00
symtab.h * powerpc.cc: Formatting and white space. 2012-08-18 11:12:50 +00:00
system.h gold/ 2012-10-24 02:26:39 +00:00
target-reloc.h * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
target-select.cc * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF. 2012-05-02 21:37:24 +00:00
target-select.h * configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF. 2012-05-02 21:37:24 +00:00
target.cc gold: Fix parameterization of do_adjust_elf_header 2012-04-20 22:23:47 +00:00
target.h * i386.cc (Output_data_plt_i386::address_for_global, 2012-10-05 00:45:54 +00:00
tilegx.cc * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
timer.cc * timer.cc: #include <unistd.h>. 2012-04-06 17:21:55 +00:00
timer.h * gold.cc: Include timer.h. 2011-10-18 00:06:10 +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-internal.h (Workqueue_threader::should_cancel_thread): 2011-07-28 23:25:06 +00:00
workqueue-threads.cc * workqueue-internal.h (Workqueue_threader::should_cancel_thread): 2011-07-28 23:25:06 +00:00
workqueue.cc * workqueue-internal.h (Workqueue_threader::should_cancel_thread): 2011-07-28 23:25:06 +00:00
workqueue.h * workqueue-internal.h (Workqueue_threader::should_cancel_thread): 2011-07-28 23:25:06 +00:00
x86_64.cc * target-reloc.h (class Default_comdat_behavior): New, package up.. 2012-10-18 04:18:18 +00:00
yyscript.y 2011-11-11 Sterling Augustine <saugustine@google.com> 2011-11-11 22:29:43 +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.