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Tamar Christina 7d02540ab7 Allow non-fatal errors to be emitted and for disassembly notes be placed on AArch64
This patch adds a new platform option "notes" that can be used to indicate if
disassembly notes should be placed in the disassembly as comments.

These notes can contain information about a failing constraint such as reading
from a write-only register.  The disassembly will not be blocked because of this
but -M notes will emit a comment saying that the operation is not allowed.

For assembly this patch adds a new non-fatal status for errors.  This is
essentially a warning.  The reason for not creating an actual warning type is
that this causes the interaction between the ordering of warnings and errors to
be problematic.  Currently the error buffer is almost always filled because of
the way operands are matched during assembly. An earlier template may have put
an error there that would only be displayed if no other template matches or
generates a higher priority error.  But by definition a warning is lower
priority than a warning, so the error (which is incorrect if another template
matched) will supersede the warning.  By treating warnings as errors and only
later relaxing the severity this relationship keeps working and the existing
reporting infrastructure can be re-used.

binutils/

	PR binutils/21446
	* doc/binutils.texi (-M): Document AArch64 options.
	* NEWS: Document notes and warnings.

gas/

	PR binutils/21446
	* config/tc-aarch64.c (print_operands): Indicate no notes.
	(output_operand_error_record): Support non-fatal errors.
	(output_operand_error_report, warn_unpredictable_ldst, md_assemble):
	Likewise.

include/

	PR binutils/21446
	* opcode/aarch64.h (aarch64_operand_error): Add non_fatal.
	(aarch64_print_operand): Support notes.

opcodes/

	PR binutils/21446
	* aarch64-dis.c (no_notes: New.
	(parse_aarch64_dis_option): Support notes.
	(aarch64_decode_insn, print_operands): Likewise.
	(print_aarch64_disassembler_options): Document notes.
	* aarch64-opc.c (aarch64_print_operand): Support notes.
2018-05-15 17:17:36 +01:00
bfd Fix uninitialised memory acccess in COFF bfd backend 2018-05-15 12:33:42 +00:00
binutils Allow non-fatal errors to be emitted and for disassembly notes be placed on AArch64 2018-05-15 17:17:36 +01:00
config config: Sync with GCC 2018-04-05 15:22:13 -07:00
cpu PR22069, Several instances of register accidentally spelled as regsiter 2018-05-09 15:55:28 +09:30
elfcpp PowerPC inline PLT call support 2018-04-09 17:25:20 +09:30
etc Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
gas Allow non-fatal errors to be emitted and for disassembly notes be placed on AArch64 2018-05-15 17:17:36 +01:00
gdb Modify AArch64 Assembly and disassembly functions to be able to fail and report why. 2018-05-15 17:17:36 +01:00
gold Fix _GLOBAL_OFFSET_TABLE_ value for large GOTs (aarch64). 2018-05-10 00:13:33 -07:00
gprof Updated Spanish translation for gprof directory 2018-04-18 12:02:17 +01:00
include Allow non-fatal errors to be emitted and for disassembly notes be placed on AArch64 2018-05-15 17:17:36 +01:00
intl Require ngettext in test of system gettext implementation 2017-11-07 15:56:44 +10:30
ld Restore LDFLAGS in notes.exp 2018-05-15 21:04:37 +09:30
libdecnumber
libiberty Resync libiberty sources with master version in GCC repository. 2018-04-17 13:53:38 +01:00
opcodes Allow non-fatal errors to be emitted and for disassembly notes be placed on AArch64 2018-05-15 17:17:36 +01:00
readline Avoid MinGW compilation warning in readline/input.c 2017-05-19 11:05:59 +03:00
sim PR22069, Several instances of register accidentally spelled as regsiter 2018-05-09 15:55:28 +09:30
texinfo
zlib Sync ZLIB with FSF GCC sources, bringing in version 1.2.11. 2017-02-20 12:52:22 +00:00
.cvsignore
.gitattributes
.gitignore
ChangeLog Bring in support for the NFP target in the config.sub file. 2018-05-01 16:35:04 +01:00
compile
config-ml.in Update top level configure files by synchronizing them with gcc. 2018-01-10 15:29:21 +00:00
config.guess Bring in support for the NFP target in the config.sub file. 2018-05-01 16:35:04 +01:00
config.rpath
config.sub Bring in support for the NFP target in the config.sub file. 2018-05-01 16:35:04 +01:00
configure Add the Netronome Flow Processor as a build target to the top-level configure.ac file. 2018-05-01 16:23:21 +01:00
configure.ac Add the Netronome Flow Processor as a build target to the top-level configure.ac file. 2018-05-01 16:23:21 +01:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS Update the address of the FSF in the copyright notice of files which were using the old address. 2017-12-14 12:48:55 +00:00
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS
Makefile.def Sync top-level make and configure files with FSF GCC mainline versions. 2017-01-23 11:55:48 +00:00
Makefile.in Sync top-level make and configure files with FSF GCC mainline versions. 2017-01-23 11:55:48 +00:00
Makefile.tpl Sync top-level make and configure files with FSF GCC mainline versions. 2017-01-23 11:55:48 +00:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
README
README-maintainer-mode
setup.com
src-release.sh Improve junk file removal in source tarball creation script. 2018-01-30 17:48:24 +00:00
symlink-tree
ylwrap

		   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.