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Andrew Burgess bb65a718b6 gas/arc: Don't rely on bfd list of cpu type for cpu selection
In the ARC assembler, when a cpu type is specified using the .cpu
directive, we rely on the bfd list of arc machine types in order to
validate the cpu name passed in.

This validation is only used in order to check that the cpu type passed
to the .cpu directive matches any machine type selected earlier on the
command line.  Once that initial check has passed a full check is
performed using the assemblers internal list of know cpu types.

The problem is that the assembler knows about more cpu types than bfd,
some cpu types known by the assembler are actually aliases for a base
cpu type plus a specific set of assembler extensions.  One such example
is NPS400, though more could be added later.

This commit removes the need for the assembler to use the bfd list of
machine types for validation.  Instead the error checking, to ensure
that any value passed to a '.cpu' directive matches any earlier command
line selection, is moved into the function arc_select_cpu.

I have taken the opportunity to bundle the 4 separate static globals
that describe the currently selected machine type into a single
structure (called selected_cpu).

gas/ChangeLog:

	* config/tc-arc.c (arc_target): Delete.
	(arc_target_name): Delete.
	(arc_features): Delete.
	(arc_mach_type): Delete.
	(mach_type_specified_p): Delete.
	(enum mach_selection_type): New enum.
	(mach_selection_mode): New static global.
	(selected_cpu): New static global.
	(arc_eflag): Rename to ...
	(arc_initial_eflag): ...this, and make const.
	(arc_select_cpu): Update comment, new parameter, check how
	previous machine type selection was made, and record this
	selection.  Use selected_cpu instead of old globals.
	(arc_option): Remove use of arc_get_mach, instead use
	arc_select_cpu to validate machine type selection.  Use
	selected_cpu over old globals.
	(allocate_tok): Use selected_cpu over old globals.
	(find_opcode_match): Likewise.
	(assemble_tokens): Likewise.
	(arc_cons_fix_new): Likewise.
	(arc_extinsn): Likewise.
	(arc_extcorereg): Likewise.
	(md_begin): Update default machine type selection, use
	selected_cpu over old globals.
	(md_parse_option): Update machine type selection option handling,
	use selected_cpu over old globals.
	* testsuite/gas/arc/nps400-0.s: Add .cpu directive.

bfd/ChangeLog:

	* cpu-arc.c (arc_get_mach): Delete.
2016-10-27 12:28:20 +01:00
bfd gas/arc: Don't rely on bfd list of cpu type for cpu selection 2016-10-27 12:28:20 +01:00
binutils Remove spurious whitespace introduced by previous delta. 2016-10-19 14:37:21 +01:00
config Sync top level files with gcc. 2016-02-10 10:54:29 +00:00
cpu Add fall through comment to source in cpu/ 2016-10-06 22:48:37 +10:30
elfcpp Add support for MIPS .rld_map section. 2016-06-20 12:16:26 -07:00
etc Fix compile time warning messages building with gcc v6.1.1 2016-06-13 10:49:26 +01:00
gas gas/arc: Don't rely on bfd list of cpu type for cpu selection 2016-10-27 12:28:20 +01:00
gdb PR 20569, segv in follow_exec 2016-10-26 16:47:46 +01:00
gold Fix PR 17704. 2016-10-21 11:10:46 -07:00
gprof Remove redundant assignment in gprof. 2016-10-06 12:51:47 +01:00
include Update list of ELF machine numbers. 2016-10-17 11:46:32 +01:00
intl Regen intl/configure 2015-08-31 12:53:36 +09:30
ld Regenerate spu_ovl.o_c 2016-10-15 12:53:57 +10:30
libdecnumber Remove leading/trailing white spaces in ChangeLog 2015-07-24 04:16:47 -07:00
libiberty Sync libiberty sources with gcc mainline. 2016-10-17 10:26:56 +01:00
opcodes X86: Remove pcommit instruction 2016-10-21 12:16:32 -07:00
readline Improve MinGW support in Readline 2016-09-17 11:50:37 +03:00
sim sim: avr: move changelog entries to subdir 2016-10-18 01:04:53 -04:00
texinfo
zlib Regenerate configure 2016-05-09 17:24:30 +09:30
.cvsignore
.gitattributes Add a .gitattributes file for use with git-merge-changelog 2014-07-25 18:07:23 -04:00
.gitignore Add archives and make stamps to the .gitignore file. 2016-09-27 15:10:42 +01:00
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
ChangeLog Add archives and make stamps to the .gitignore file. 2016-09-27 15:10:42 +01:00
MAINTAINERS Update description of ownership of files in include/ 2014-11-04 16:14:14 -08:00
Makefile.def Sync top-level Makefile.def with GCC 2016-01-12 08:34:40 -08:00
Makefile.in Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
Makefile.tpl Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
README
README-maintainer-mode
compile Update from upstream Automake 2014-11-16 13:43:48 +01:00
config-ml.in Sync toplevel files with GCC 2015-07-27 07:49:05 -07:00
config.guess Fix typo introduced during the most recent synchronization update. 2016-05-27 14:34:06 +01:00
config.rpath
config.sub Sync config.guess and config.sub with FSF GCC mainline versions 2016-05-23 11:42:17 +01:00
configure Enable the configuration of GDB for the NDS32 target. 2016-07-20 09:06:39 +01:00
configure.ac Enable the configuration of GDB for the NDS32 target. 2016-07-20 09:06:39 +01:00
depcomp Update from upstream Automake 2014-11-16 13:43:48 +01:00
djunpack.bat
install-sh Update from upstream Automake 2014-11-16 13:43:48 +01:00
libtool.m4 Sync top-level btool.m4 with GCC 2016-01-12 08:44:52 -08:00
ltgcc.m4
ltmain.sh PR target/59788 2014-02-06 11:01:57 +01:00
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
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
src-release.sh fix gdb version parsing in src-release.sh 2016-01-17 10:01:55 +04:00
symlink-tree
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.