Binutils with MCST patches
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John Baldwin 97de3545ca Add support for the x86 XSAVE extended state on FreeBSD/x86.
Recognize NT_X86_XSTATE notes in FreeBSD process cores.  Recent
FreeBSD versions include a note containing the XSAVE state for each
thread in the process when XSAVE is in use.  The note stores a copy of
the current XSAVE mask in a reserved section of the machine-defined
XSAVE state at the same offset as Linux's NT_X86_XSTATE note.

For native processes, use the PT_GETXSTATE_INFO ptrace request to
determine if XSAVE is enabled, and if so the active XSAVE state mask
(that is, the value of %xcr0 for the target process) as well as the
size of XSAVE state area.  Use the PT_GETXSTATE and PT_SETXSTATE requests
to fetch and store the XSAVE state, respectively, in the BSD x86
native targets.

In addition, the FreeBSD amd64 and i386 native targets now include
"read_description" target methods to determine the correct x86 target
description for the current XSAVE mask.  On FreeBSD amd64 this also
properly returns an i386 target description for 32-bit binaries which
allows the 64-bit GDB to run 32-bit binaries.

Note that the ptrace changes are in the BSD native targets, not the
FreeBSD-specific native targets since that is where the other ptrace
register accesses occur.  Of the other BSDs, NetBSD and DragonFly use
XSAVE in the kernel but do not currently export the extended state via
ptrace(2).  OpenBSD does not currently support XSAVE.

bfd/ChangeLog:

	* elf.c (elfcore_grok_note): Recognize NT_X86_XSTATE on
	FreeBSD.
	(elfcore_write_xstatereg): Use correct note name on FreeBSD.

gdb/ChangeLog:

	* amd64-tdep.c (amd64_target_description): New function.
	* amd64-tdep.h: Export amd64_target_description and tdesc_amd64.
	* amd64bsd-nat.c [PT_GETXSTATE_INFO]: New variable amd64bsd_xsave_len.
	(amd64bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle
	x86 extended save area.
	(amd64bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise.
	* amd64bsd-nat.h: Export amd64bsd_xsave_len.
	* amd64fbsd-nat.c (amd64fbsd_read_description): New function.
	(_initialize_amd64fbsd_nat): Set "to_read_description" to
	"amd64fbsd_read_description".
	* amd64fbsd-tdep.c (amd64fbsd_core_read_description): New function.
	(amd64fbsd_supply_xstateregset): New function.
	(amd64fbsd_collect_xstateregset): New function.
	Add "amd64fbsd_xstateregset".
	(amd64fbsd_iterate_over_regset_sections): New function.
	(amd64fbsd_init_abi): Set "xsave_xcr0_offset" to
	"I386_FBSD_XSAVE_XCR0_OFFSET".
	Add "iterate_over_regset_sections" gdbarch method.
	Add "core_read_description" gdbarch method.
	* i386-tdep.c (i386_target_description): New function.
	* i386-tdep.h: Export i386_target_description and tdesc_i386.
	* i386bsd-nat.c [PT_GETXSTATE_INFO]: New variable i386bsd_xsave_len.
	(i386bsd_fetch_inferior_registers) [PT_GETXSTATE_INFO]: Handle
	x86 extended save area.
	(i386bsd_store_inferior_registers) [PT_GETXSTATE_INFO]: Likewise.
	* i386bsd-nat.h: Export i386bsd_xsave_len.
	* i386fbsd-nat.c (i386fbsd_read_description): New function.
	(_initialize_i386fbsd_nat): Set "to_read_description" to
	"i386fbsd_read_description".
	* i386fbsd-tdep.c (i386fbsd_core_read_xcr0): New function.
	(i386fbsd_core_read_description): New function.
	(i386fbsd_supply_xstateregset): New function.
	(i386fbsd_collect_xstateregset): New function.
	Add "i386fbsd_xstateregset".
	(i386fbsd_iterate_over_regset_sections): New function.
	(i386fbsd4_init_abi): Set "xsave_xcr0_offset" to
	"I386_FBSD_XSAVE_XCR0_OFFSET".
	Add "iterate_over_regset_sections" gdbarch method.
	Add "core_read_description" gdbarch method.
	* i386fbsd-tdep.h: New file.
2015-04-13 16:07:01 -04:00
bfd Add support for the x86 XSAVE extended state on FreeBSD/x86. 2015-04-13 16:07:01 -04:00
binutils Fix reading of .debug_str_offsets{,.dwo} twice. 2015-04-13 12:50:17 -07:00
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 documentation about the interation of the ARM assembler's -EB option and the linker's --be8 option. 2015-04-10 08:26:07 +01:00
gdb Add support for the x86 XSAVE extended state on FreeBSD/x86. 2015-04-13 16:07:01 -04:00
gold Allow gold to resolve defined TLS symbols in a PIE link. 2015-04-09 15:47:37 -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 an extra ';' 2015-04-11 12:07:20 -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: fix the PKGVERSION define 2015-04-13 02:41:10 -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 add autom4te.cache to .cvsignore 2007-02-13 15:25:58 +00:00
.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
COPYING 2005-07-14 Kelley Cook <kcook@gcc.gnu.org> 2005-07-14 01:24:56 +00:00
COPYING.LIB 2005-07-16 Kelley Cook <kcook@gcc.gnu.org> 2005-07-16 02:41:34 +00:00
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: New file. Contains version 3 of the GNU General Public License. 2007-07-17 13:50:23 +00:00
COPYING3.LIB * COPYING3: New file. Contains version 3 of the GNU General Public License. 2007-07-17 13:50:23 +00:00
ChangeLog Add --with-system-zlib to top level configure 2015-04-01 04:57:28 -07:00
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
README
README-maintainer-mode Cleanups after the update to Autoconf 2.64, Automake 1.11. 2009-08-22 17:08:11 +00:00
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
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 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
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 * libtool.m4: Update to libtool 2.2.6. 2008-09-29 15:28:14 +00:00
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
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
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 2005-07-14 Kelley Cook <kcook@gcc.gnu.org> 2005-07-14 01:24:56 +00:00
ylwrap Update from upstream Automake 2014-11-16 13:43:48 +01:00

README

		   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.