Binutils with MCST patches
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Andrew Burgess 66f8b2cbbb gas: Add --gdwarf-cie-version command line flag
Add a flag to control the version of CIE that is generated.  By
default gas produces CIE version 1, and this continues to be the
default after this patch.

However, a user can now provide --gdwarf-cie-version=NUMBER to switch
to either version 3 or version 4 of CIE, version 2 was never released,
and so causes an error as does any number less than 1 or greater than
4.

Producing version 4 CIE requires two new fields to be added to the
CIE, an address size field, and an segment selector field.  For a flat
address space the DWARF specification indicates that the segment
selector should be 0, and the address size fields just contains the
address size in bytes.  For now we support 4 or 8 byte addresses, and
the segment selector is always produced as 0.  At some future time we
might need to allow targets to override this.

gas/ChangeLog:

	* as.c (parse_args): Parse --gdwarf-cie-version option.
	(flag_dwarf_cie_version): New variable.
	* as.h (flag_dwarf_cie_version): Declare.
	* dw2gencfi.c (output_cie): Switch from DW_CIE_VERSION to
	flag_dwarf_cie_version.
	* doc/as.texi (Overview): Document --gdwarf-cie-version.
	* NEWS: Likewise.
	* testsuite/gas/cfi/cfi.exp: Add new tests.
	* testsuite/gas/cfi/cie-version-0.d: New file.
	* testsuite/gas/cfi/cie-version-1.d: New file.
	* testsuite/gas/cfi/cie-version-2.d: New file.
	* testsuite/gas/cfi/cie-version-3.d: New file.
	* testsuite/gas/cfi/cie-version-4.d: New file.
	* testsuite/gas/cfi/cie-version.s: New file.

include/ChangeLog:

	* dwarf2.h (DW_CIE_VERSION): Delete.

Change-Id: I9de19461aeb8332b5a57bbfe802953d0725a7ae8
2019-11-18 10:30:21 +00:00
bfd Automatic date update in version.in 2019-11-18 00:00:27 +00:00
binutils PR25198, use of out of date pointer 2019-11-18 09:20:10 +10:30
config
contrib
cpu
elfcpp
etc
gas gas: Add --gdwarf-cie-version command line flag 2019-11-18 10:30:21 +00:00
gdb Use gnulib's strerror_r on MinGW 2019-11-15 13:31:36 -08:00
gnulib Add no-dist to gnulib configure 2019-11-15 13:48:27 -07:00
gold PR24996, Gold fix for ternary operator within linker scripts 2019-11-11 10:56:44 +10:30
gprof Revert previous delta. 2019-11-15 11:52:50 +00:00
include gas: Add --gdwarf-cie-version command line flag 2019-11-18 10:30:21 +00:00
intl
ld RISC-V: Fix ld relax failure with calls and align directives. 2019-11-12 15:53:22 -08:00
libctf
libdecnumber
libiberty
opcodes x86: drop redundant SYSCALL/SYSRET templates 2019-11-14 08:48:22 +01:00
readline Minor updates to readline configury 2019-11-15 13:46:54 -07:00
sim
texinfo
zlib
.cvsignore
.gitattributes
.gitignore
ar-lib
ChangeLog
compile
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configure
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depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
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MAINTAINERS
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		   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.