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Max Filippov 071aa5c98a xtensa: optimize removed_by_actions
The function removed_by_actions iterates through text actions to
calculate an offset applied by text actions to a given VMA. Although it
has a parameter p_start_action that allows for incremental offset
calculation, in many places it's used with p_start_action explicitly set
to the first action. After the first relaxation pass when the list of
text actions is finalized, an array of offsets sorted by VMA may be used
to speed up this function.

Original profile:

% time    self  children    called     name
-----------------------------------------
          0.35    0.00   33872/4808961     relax_section_symbols
          3.32    0.00  326022/4808961     relax_property_section
         12.83    0.00 1259379/4808961     offset_with_removed_text
         32.50    0.00 3189688/4808961     translate_reloc
  71.5   49.00    0.00 4808961         removed_by_actions
-----------------------------------------

Same data, after optimization:

% time    self  children    called     name
-----------------------------------------
          0.00    0.00   33872/4808537     relax_section_symbols
          0.01    0.00  326022/4808537     relax_property_section
          0.05    0.00 1258955/4808537     offset_with_removed_text_map
          0.13    0.00 3189688/4808537     translate_reloc
   1.0    0.20    0.00 4808537         removed_by_actions_map
          0.00    0.00     120/120         map_removal_by_action
-----------------------------------------

2015-04-01  Max Filippov  <jcmvbkbc@gmail.com>
bfd/
	* elf32-xtensa.c (removal_by_action_entry_struct,
	removal_by_action_map_struct): new structures.
	(removal_by_action_entry, removal_by_action_map): new typedefs.
	(text_action_list_struct): add new field: map.
	(map_removal_by_action, removed_by_actions_map,
	offset_with_removed_text_map): new functions.
	(relax_section): replace offset_with_removed_text with
	offset_with_removed_text_map.
	(translate_reloc, relax_property_section, relax_section_symbols):
	replace removed_by_actions with removed_by_actions_map.
2015-04-09 19:10:25 +03:00
bfd xtensa: optimize removed_by_actions 2015-04-09 19:10:25 +03:00
binutils Add support to the RX toolchain to restrict the use of string instructions. 2015-04-09 12:48:37 +01:00
config Set zlibdir/zlibinc with top_builddir/top_srcdir 2015-04-02 05:43:07 -07:00
cpu or1k: add missing l.msync, l.psync and l.psync instructions. 2014-07-20 20:26:09 +03:00
elfcpp Add chdr_size, Chdr, Chdr_write and Chdr_data 2015-04-08 10:29:40 -07:00
etc PR external/{16327,16328}: Remove etc/configure.texi and etc/standards.texi. 2014-06-27 11:33:25 +02:00
gas Add support to the RX toolchain to restrict the use of string instructions. 2015-04-09 12:48:37 +01:00
gdb Rename common-remote-fileio.[ch] as fileio.[ch] 2015-04-09 15:44:31 +01:00
gold Add AArch32 support for arm gold linker. 2015-04-07 17:21:27 -07:00
gprof Regenerate Makeile.in file for copyright update 2015-01-02 22:27:27 +10:30
include Add support to the RX toolchain to restrict the use of string instructions. 2015-04-09 12:48:37 +01:00
intl merge from gcc 2010-09-27 21:01:18 +00:00
ld Remove BNDPLT and add PARSE_AND_LIST_ARGS_CASE_Z 2015-04-09 07:53:00 -07:00
libdecnumber Another part of fixing "make TAGS". 2015-01-22 21:07:31 +02:00
libiberty strerror.c: Do not declare sys_nerr or sys_errlist if already macros 2015-01-19 16:29:07 +01:00
opcodes x86: Use individual prefix control for each opcode. 2015-04-06 19:33:01 +03:00
readline Fix executable indicator in file name completion on Windows. 2014-12-30 21:14:25 +02:00
sim sim: move sim-engine.o/sim-hrw.o to the common list 2015-04-06 23:56:47 -04:00
texinfo * texinfo/texinfo.tex: Update to version 2009-03-28.05. 2009-04-21 12:36:46 +00:00
zlib Add missing ChangeLog entry 2015-03-31 13:15:01 -07:00
.cvsignore
.gitattributes Add a .gitattributes file for use with git-merge-changelog 2014-07-25 18:07:23 -04:00
.gitignore Sync the root .gitignore file with GCC's. 2013-01-11 15:17:35 +00:00
ChangeLog Add --with-system-zlib to top level configure 2015-04-01 04:57:28 -07:00
compile Update from upstream Automake 2014-11-16 13:43:48 +01:00
config-ml.in Sync config-ml.in with GCC trunk 2015-03-17 05:15:34 -07:00
config.guess Update config.guess and config.sub to the latest upstream version 2015-03-30 16:28:14 -04:00
config.rpath Remove freebsd1 from libtool.m4 macros and config.rpath. 2011-02-13 21:00:14 +00:00
config.sub Update config.guess and config.sub to the latest upstream version 2015-03-30 16:28:14 -04:00
configure Add --with-system-zlib to top level configure 2015-04-01 04:57:28 -07:00
configure.ac Add --with-system-zlib to top level configure 2015-04-01 04:57:28 -07:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS 2013-01-07 Jeff Johnston <jjohnstn@redhat.com> 2013-01-07 21:39:26 +00:00
COPYING.NEWLIB 2013-10-01 Jeff Johnston <jjohnstn@redhat.com> 2013-10-01 18:14:04 +00:00
COPYING3
COPYING3.LIB
depcomp Update from upstream Automake 2014-11-16 13:43:48 +01:00
djunpack.bat * djunpack.bat: Use ".." quoting in Sed command, for the sake of 2009-03-27 13:37:09 +00:00
install-sh Update from upstream Automake 2014-11-16 13:43:48 +01:00
libtool.m4 Update libtool.m4 from GCC trunk 2014-11-24 09:14:09 -08:00
ltgcc.m4
ltmain.sh PR target/59788 2014-02-06 11:01:57 +01:00
ltoptions.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
ltsugar.m4
ltversion.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
lt~obsolete.m4 Sync Libtool from GCC. 2010-01-09 21:11:44 +00:00
MAINTAINERS Update description of ownership of files in include/ 2014-11-04 16:14:14 -08:00
Makefile.def Make all-bfd depend on all-zlib 2015-03-30 10:18:34 -07:00
Makefile.in Make all-bfd depend on all-zlib 2015-03-30 10:18:34 -07:00
Makefile.tpl Update top-level files from GCC trunk 2015-03-16 09:12:37 -07:00
makefile.vms
missing Update from upstream Automake 2014-11-16 13:43:48 +01:00
mkdep
mkinstalldirs Update from upstream Automake 2014-11-16 13:43:48 +01:00
move-if-change Update `move-if-change' from gnulib 2014-11-16 17:04:02 +01:00
README
README-maintainer-mode Cleanups after the update to Autoconf 2.64, Automake 1.11. 2009-08-22 17:08:11 +00:00
setup.com 2009-09-01 Tristan Gingold <gingold@adacore.com> 2009-09-01 13:38:26 +00:00
src-release.sh Remove --with-target-subdir=. --disable-multilib 2015-03-31 13:13:13 -07:00
symlink-tree
ylwrap Update from upstream Automake 2014-11-16 13:43:48 +01:00

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.