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mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-12-21 04:42:53 +08:00
binutils-gdb/gold
2011-05-31 04:26:49 +00:00
..
po
testsuite PR gold/12804 2011-05-29 17:24:05 +00:00
aclocal.m4
archive.cc * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
archive.h PR gold/12689 2011-04-20 18:20:51 +00:00
arm-reloc-property.cc
arm-reloc-property.h
arm-reloc.def
arm.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +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 * reloc.cc (Sized_relobj_file::do_read_relocs): Ignore empty reloc 2011-05-31 04:26:49 +00:00
common.cc
common.h
compressed_output.cc
compressed_output.h
config.in * configure.ac: Check for sys/mman.h and mmap. Check for mremap 2011-04-12 18:06:16 +00:00
configure * configure.ac: Check for sys/mman.h and mmap. Check for mremap 2011-04-12 18:06:16 +00:00
configure.ac * configure.ac: Check for sys/mman.h and mmap. Check for mremap 2011-04-12 18:06:16 +00:00
configure.tgt
copy-relocs.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
copy-relocs.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +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 * dirsearch.cc (Dirsearch::find): Replace n1 and n2 parameters 2011-05-25 06:15:28 +00:00
dirsearch.h * dirsearch.cc (Dirsearch::find): Replace n1 and n2 parameters 2011-05-25 06:15:28 +00:00
dwarf_reader.cc 2011-04-05 Paul Pluzhnikov <ppluzhnikov@google.com> 2011-04-05 19:19:42 +00:00
dwarf_reader.h
dynobj.cc * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
dynobj.h * dynobj.h (Dynobj::do_dynobj): New function. 2011-05-24 21:57:28 +00:00
ehframe.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
ehframe.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
errors.cc * object.cc (Relocate_info::location): Simplify location string. 2011-04-18 05:39:43 +00:00
errors.h
expression.cc
ffsll.c
fileread.cc * dirsearch.cc (Dirsearch::find): Replace n1 and n2 parameters 2011-05-25 06:15:28 +00:00
fileread.h * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
freebsd.h
ftruncate.c
gc.cc
gc.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
gold-threads.cc
gold-threads.h
gold.cc * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
gold.h * configure.ac: Check for sys/mman.h and mmap. Check for mremap 2011-04-12 18:06:16 +00:00
i386.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
icf.cc
icf.h
incremental-dump.cc * incremental-dump.cc (dump_incremental_inputs): Print COMDAT groups. 2011-05-26 18:44:27 +00:00
incremental.cc * incremental-dump.cc (dump_incremental_inputs): Print COMDAT groups. 2011-05-26 18:44:27 +00:00
incremental.h * incremental-dump.cc (dump_incremental_inputs): Print COMDAT groups. 2011-05-26 18:44:27 +00:00
int_encoding.cc
int_encoding.h
layout.cc * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
layout.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
main.cc * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
Makefile.am
Makefile.in
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
merge.h
mremap.c * configure.ac: Check for sys/mman.h and mmap. Check for mremap 2011-04-12 18:06:16 +00:00
NEWS
object.cc * incremental-dump.cc (dump_incremental_inputs): Print COMDAT groups. 2011-05-26 18:44:27 +00:00
object.h * dynobj.h (Dynobj::do_dynobj): New function. 2011-05-24 21:57:28 +00:00
options.cc * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
options.h * gold.cc (queue_initial_tasks): Pass incremental base filename 2011-05-24 23:31:07 +00:00
output.cc * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
output.h * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
parameters.cc * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
parameters.h * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
plugin.cc * archive.cc (Library_base::should_include_member): Pull in object 2011-05-25 00:17:47 +00:00
plugin.h * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
powerpc.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
pread.c
README
readsyms.cc * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
readsyms.h * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
reduced_debug_output.cc
reduced_debug_output.h
reloc-types.h
reloc.cc * reloc.cc (Sized_relobj_file::do_read_relocs): Ignore empty reloc 2011-05-31 04:26:49 +00:00
reloc.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
resolve.cc
script-c.h
script-sections.cc
script-sections.h
script.cc * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
script.h * archive.cc (Archive::include_member): Adjust call to 2011-04-12 00:44:48 +00:00
sparc.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
stringpool.cc
stringpool.h
symtab.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
symtab.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
target-reloc.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
target-select.cc
target-select.h
target.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
target.h * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
timer.cc
timer.h
tls.h
TODO
token.h
version.cc
workqueue-internal.h
workqueue-threads.cc
workqueue.cc
workqueue.h
x86_64.cc * incremental-dump.cc (dump_incremental_inputs): Print dynamic reloc 2011-05-24 21:41:10 +00:00
yyscript.y

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.