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H.J. Lu 6914be53bd gas: Extend .symver directive
Extend .symver directive to update visibility of the original symbol and
assign one original symbol to different versioned symbols:

  .symver foo, foo@VERS_1, local    # Change foo to a local symbol.
  .symver foo, foo@VERS_2, hidden   # Change foo to a hidden symbol.
  .symver foo, foo@@VERS_3, remove  # Remove foo from symbol table.
  .symver foo, bar@V1               # Assign foo to bar@V1 and baz@V2.
  .symver foo, baz@V2

	PR gas/23840
	PR gas/25295
	* NEWS: Mention .symver extension.
	* config/obj-elf.c (obj_elf_find_and_add_versioned_name): New
	function.
	(obj_elf_symver): Call obj_elf_find_and_add_versioned_name to
	add a version name.  Add local, hidden and remove visibility
	support.
	(elf_frob_symbol): Handle the list of version names.  Update the
	original symbol to local, hidden or remove it from the symbol
	table.
	(elf_frob_file_before_adjust): Handle the list of version names.
	* config/obj-elf.h (elf_visibility): New.
	(elf_versioned_name_list): Likewise.
	(elf_obj_sy): Change local to bitfield. Add rename, bad_version
	and visibility.  Change versioned_name pointer to struct
	elf_versioned_name_list.
	* doc/as.texi: Update .symver directive.
	* testsuite/gas/symver/symver.exp: Run all *.d tests.  Add more
	error checking tests.
	* testsuite/gas/symver/symver6.d: New file.
	* testsuite/gas/symver/symver7.d: Likewise.
	* testsuite/gas/symver/symver7.s: Likewise.
	* testsuite/gas/symver/symver8.d: Likewise.
	* testsuite/gas/symver/symver8.s: Likewise.
	* testsuite/gas/symver/symver9.s: Likewise.
	* testsuite/gas/symver/symver9a.d: Likewise.
	* testsuite/gas/symver/symver9b.d: Likewise.
	* testsuite/gas/symver/symver10.s: Likewise.
	* testsuite/gas/symver/symver10a.d: Likewise.
	* testsuite/gas/symver/symver10b.d: Likewise.
	* testsuite/gas/symver/symver11.d: Likewise.
	* testsuite/gas/symver/symver11.s: Likewise.
	* testsuite/gas/symver/symver12.d: Likewise.
	* testsuite/gas/symver/symver12.s: Likewise.
	* testsuite/gas/symver/symver13.d: Likewise.
	* testsuite/gas/symver/symver13.s: Likewise.
	* testsuite/gas/symver/symver14.d: Likewise.
	* testsuite/gas/symver/symver14.l: Likewise.
	* testsuite/gas/symver/symver15.d: Likewise.
	* testsuite/gas/symver/symver15.l: Likewise.
	* testsuite/gas/symver/symver6.l: Removed.
	* testsuite/gas/symver/symver6.s: Updated.
2020-04-21 05:33:17 -07:00
bfd elf: Strip zero-sized dynamic sections 2020-04-21 05:24:03 -07:00
binutils fix typo last commit 2020-04-20 12:01:47 +09:30
config Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
contrib contrib: Update dg-extract-results.* from gcc 2019-10-21 15:26:48 +01:00
cpu cpu,gas,opcodes: support for eBPF JMP32 instruction class 2020-04-16 09:52:57 +02:00
elfcpp Add markers for 2.34 branch to the NEWS files and ChangeLogs. 2020-01-18 13:50:25 +00:00
etc texi2pod.pl: import support for @t{...} from gcc 2020-01-15 12:58:09 -05:00
gas gas: Extend .symver directive 2020-04-21 05:33:17 -07:00
gdb Mark move constructors as "noexcept" 2020-04-20 11:45:06 -06:00
gdbserver Fix Cygwin gdb build 2020-04-16 07:24:57 -06:00
gdbsupport Mark move constructors as "noexcept" 2020-04-20 11:45:06 -06:00
gnulib gdb: update gnulib import 2020-02-22 20:37:18 -05:00
gold Add support for --no-rosegment option. 2020-03-19 15:54:38 -07:00
gprof Updated Serbian translation for the gprof subdirectory 2020-04-01 14:37:02 +01:00
include Remove SH-5 remnants 2020-04-21 11:35:43 +09:30
intl Regen with blessed automake-1.15.1 2020-02-20 13:02:24 +10:30
ld elf: Strip zero-sized dynamic sections 2020-04-21 05:24:03 -07:00
libctf libctf: Mark bswap_identity_64 inline function as static. 2020-03-11 17:48:49 +10:30
libdecnumber Merge config/ changes from GCC. 2018-10-31 17:16:41 +00:00
libiberty Import latest fixes to libiberty from GCC 2020-03-02 03:56:36 -08:00
opcodes [AArch64, Binutils] Add missing TSB instruction 2020-04-20 10:58:16 +01:00
readline Fix compilation of Readline on mingw.org's MinGW 2019-12-23 16:28:32 +02:00
sim sim: ppc: netbsd: Sync signal names with NetBSD 9.99.49 2020-03-12 16:07:37 +01:00
texinfo
zlib Merge changes from GCC for the config/ directory 2020-02-19 17:51:24 +00:00
.cvsignore
.gitattributes
.gitignore Add profiling outputs to .gitignore 2019-12-26 06:54:58 +01:00
ar-lib
ChangeLog Since the pdp11-aout target does not support gdb, gdbserver or gprof these should be excluded in configure. 2020-04-21 10:27:50 +01:00
compile
config-ml.in
config.guess Update top level config files with copies from the official repository. 2020-01-18 13:43:19 +00:00
config.rpath
config.sub Update top level config files with copies from the official repository. 2020-01-18 13:43:19 +00:00
configure Since the pdp11-aout target does not support gdb, gdbserver or gprof these should be excluded in configure. 2020-04-21 10:27:50 +01:00
configure.ac Since the pdp11-aout target does not support gdb, gdbserver or gprof these should be excluded in configure. 2020-04-21 10:27:50 +01:00
COPYING
COPYING3
COPYING3.LIB
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
depcomp
djunpack.bat
install-sh
libtool.m4
lt~obsolete.m4
ltgcc.m4
ltmain.sh
ltoptions.m4
ltsugar.m4
ltversion.m4
MAINTAINERS Move gdbserver to top level 2020-02-07 08:42:25 -07:00
Makefile.def Change gdbserver to use existing gdbsupport 2020-03-12 13:32:16 -06:00
Makefile.in Change gdbserver to use existing gdbsupport 2020-03-12 13:32:16 -06:00
Makefile.tpl Revert "Sync top level files with versions from gcc." 2019-05-30 11:17:19 +01:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
multilib.am
README
README-maintainer-mode
setup.com
src-release.sh Move gdbserver to top level 2020-02-07 08:42:25 -07:00
symlink-tree
test-driver
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.