Recent improvements to null address warnings notice that for
targets that do not support HAVE_ELF_STYLE_WEAKREF the dummy stub
implementation of __cxa_get_globals() means that the address can
never be null.

Fixed by removing the test for such targets.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

libitm/ChangeLog:

	* eh_cpp.cc (GTM::gtm_thread::init_cpp_exceptions): If the
	target does not support HAVE_ELF_STYLE_WEAKREF then do not
	try to test the __cxa_get_globals against NULL.

This removes the helper functions added by r8-1294 to detect whether the
char_traits member functions can be evaluated at compile time. Instead,
we can just use __builtin_constant_evaluated directly, which is well
supported by non-GCC compilers by now.

As a result, there is a chance that those members will no longer be
usable in constant expressions when using old versions of non-GCC
compilers. Make the relevant feature test macros depend on the
availability of __builtin_constant_evaluated, so they are defined only
when the feature is actualyl available.

The new testcase from the PR is added to the libitm testsuite, because
that's where we can be sure it's OK to use the -fgnu-tm option.

Signed-off-by: Jonathan Wakely <jwakely@redhat.com>

	PR libstdc++/91488

libstdc++-v3/ChangeLog:

	* include/bits/basic_string.h (__cpp_lib_constexpr_string): Only
	define when is_constant_evaluated is available.
	* include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
	Likewise.
	(__constant_string_p, __constant_array_p): Remove.
	(char_traits): Use is_constant_evaluated directly.
	* include/std/version (__cpp_lib_constexpr_char_traits)
	(__cpp_lib_constexpr_string): Only define when
	is_constant_evaluated is available.

libitm/ChangeLog:

	* testsuite/libitm.c++/libstdc++-pr91488.C: New test.

The recent changes to error on mixing -march=i386 and -fcf-protection broke
bootstrap.  This patch changes lib{atomic,gomp,itm} configury, so that it
only adds -march=i486 to flags if really needed (i.e. when 486 or later isn't
on by default already).  Similarly, it will not use ifuncs if -mcx16
(or -march=i686 for 32-bit) is on by default.

2021-01-15  Jakub Jelinek  <jakub@redhat.com>

	PR target/70454
libatomic/
	* configure.tgt: For i?86 and x86_64 determine if -march=i486 needs to
	be added through preprocessor check on
	__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4.  Determine if try_ifunc is needed
	based on preprocessor check on __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16
	or __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8.
libgomp/
	* configure.tgt: For i?86 and x86_64 determine if -march=i486 needs to
	be added through preprocessor check on
	__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4.
libitm/
	* configure.tgt: For i?86 and x86_64 determine if -march=i486 needs to
	be added through preprocessor check on
	__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4.

ChangeLog:

	* libtool.m4: Match gnu* along other GNU systems.
	* libgo/config/libtool.m4: Match gnu* along other GNU systems.
	* libgo/configure: Re-generate.

libffi/
	* configure: Re-generate.

libgomp/
	* configure: Re-generate.

gcc/

	* configure: Re-generate.

libatomic/

	* configure: Re-generate.

libbacktrace/

	* configure: Re-generate.

libcc1/

	* configure: Re-generate.

libgfortran/

	* configure: Re-generate.

libgomp/

	* configure: Re-generate.

libhsail-rt/

	* configure: Re-generate.

libitm/

	* configure: Re-generate.

libobjc/

	* configure: Re-generate.

liboffloadmic/

	* configure: Re-generate.
	* plugin/configure: Re-generate.

libphobos/

	* configure: Re-generate.

libquadmath/

	* configure: Re-generate.

libsanitizer/

	* configure: Re-generate.

libssp/

	* configure: Re-generate.

libstdc++-v3/

	* configure: Re-generate.

libvtv/

	* configure: Re-generate.

lto-plugin/

	* configure: Re-generate.

zlib/

	* configure: Re-generate.

Do this separately from all other Copyright updates, as ChangeLog files
can be modified only separately.

Manual part of copyright year updates.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* gcc.c (process_command): Update copyright notice dates.
	* gcov-dump.c (print_version): Ditto.
	* gcov.c (print_version): Ditto.
	* gcov-tool.c (print_version): Ditto.
	* gengtype.c (create_file): Ditto.
	* doc/cpp.texi: Bump @copying's copyright year.
	* doc/cppinternals.texi: Ditto.
	* doc/gcc.texi: Ditto.
	* doc/gccint.texi: Ditto.
	* doc/gcov.texi: Ditto.
	* doc/install.texi: Ditto.
	* doc/invoke.texi: Ditto.
gcc/ada/
	* gnat_ugn.texi: Bump @copying's copyright year.
	* gnat_rm.texi: Likewise.
gcc/d/
	* gdc.texi: Bump @copyrights-d year.
gcc/fortran/
	* gfortranspec.c (lang_specific_driver): Update copyright notice
	dates.
	* gfc-internals.texi: Bump @copying's copyright year.
	* gfortran.texi: Ditto.
	* intrinsic.texi: Ditto.
	* invoke.texi: Ditto.
gcc/go/
	* gccgo.texi: Bump @copyrights-go year.
libgomp/
	* libgomp.texi: Bump @copying's copyright year.
libitm/
	* libitm.texi: Bump @copying's copyright year.
libquadmath/
	* libquadmath.texi: Bump @copying's copyright year.

The change in major version (and the increment from Darwin19 to 20)
caused libtool tests to fail which resulted in incorrect build settings
for shared libraries.

We take this opportunity to sort out the shared undefined symbols state
rather than propagating the current unsound behaviour into a new rev.

This change means that we default to the case that missing symbols are
considered an error, and if one wants to allow this intentionally, the
confiuration for that case should be set appropriately.

Three existing cases need undefined dynamic lookup:
 libitm, where there is already a configuration mechanism to add the
         flags.
 libcc1, where we add simple configuration to add the flags for Darwin.
 libsanitizer, where we can add to the existing extra flags.

libcc1/ChangeLog:

	PR target/97865
	* Makefile.am: Add dynamic_lookup to LD flags for Darwin.
	* configure.ac: Test for Darwin host and set a flag.
	* Makefile.in: Regenerate.
	* configure: Regenerate.

libitm/ChangeLog:

	PR target/97865
	* configure.tgt: Add dynamic_lookup to XLDFLAGS for Darwin.
	* configure: Regenerate.

libsanitizer/ChangeLog:

	PR target/97865
	* configure.tgt: Add dynamic_lookup to EXTRA_CXXFLAGS for
	Darwin.
	* configure: Regenerate.

ChangeLog:

	PR target/97865
	* libtool.m4: Update handling of Darwin platform link flags
	for Darwin20.

gcc/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libatomic/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libbacktrace/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libffi/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libgfortran/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libgomp/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libhsail-rt/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libobjc/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libphobos/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libquadmath/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libssp/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libstdc++-v3/ChangeLog:

	PR target/97865
	* configure: Regenerate.

libvtv/ChangeLog:

	PR target/97865
	* configure: Regenerate.

zlib/ChangeLog:

	PR target/97865
	* configure: Regenerate.

This change adds the +nodefaultrpath ld option to remove all library
paths that were specified with the -L option from the embedded path.

2020-11-29  John David Anglin  <danglin@gcc.gnu.org>

ChangeLog:
	* libtool.m4 (archive_cmds): Add +nodefaultrpath ld option on
	hppa64-*-hpux11*.

libatomic/ChangeLog:
	* configure: Regenerate.

libbacktrace/ChangeLog:
	* configure: Regenerate.

libcc1/ChangeLog:
	* configure: Regenerate.

libffi/ChangeLog:
	* configure: Regenerate.

libgfortran/ChangeLog:
	* configure: Regenerate.

libgomp/ChangeLog:
	* configure: Regenerate.

libhsail-rt/ChangeLog:
	* configure: Regenerate.

libitm/ChangeLog:
	* configure: Regenerate.

libobjc/ChangeLog:
	* configure: Regenerate.

liboffloadmic/ChangeLog:
	* configure: Regenerate.
	* plugin/configure: Regenerate.

libquadmath/ChangeLog:
	* configure: Regenerate.

libsanitizer/ChangeLog:
	* configure: Regenerate.

libssp/ChangeLog:
	* configure: Regenerate.

libstdc++-v3/ChangeLog:
	* configure: Regenerate.

libvtv/ChangeLog:
	* configure: Regenerate.

lto-plugin/ChangeLog:
	* configure: Regenerate.

zlib/ChangeLog:
	* configure: Regenerate.

Generate assembly with .localentry,1 functions using @notoc calls.
This patch makes libgcc.a asm look the same as power10 pcrel as far as
toc/notoc is concerned.

Otherwise calling between functions that advertise as using the TOC
and those that don't, will require linker call stubs in statically
linked code.

gcc/
	* config/rs6000/ppc-asm.h: Support __PCREL__ code.
libgcc/
	* config/rs6000/morestack.S,
	* config/rs6000/tramp.S: Support __PCREL__ code.
libitm/
	* config/powerpc/sjlj.S: Support __PCREL__ code.

_ITM_beginTransaction is a 'returns_twice' function that saves x30
on the stack as part of gtm_jmpbuf (that is passed down to
GTM_begin_transaction), but the saved x30 is also used for return.

The return path should be protected so we don't leave an
  ldp x29, x30, [sp]
  ret
gadget in the code, so x30 is signed on function entry. This
exposes the signed address in the gtm_jmpbuf too. The jmpbuf does
not need a signed address since GTM_longjmp uses
  ldp x29, x30, [x1]
  br x30
and with BTI there is a BTI j at the _ITM_beginTransaction call site
where this jump returns. Using PAC does not hurt: the gtm_jmpbuf is
internal to libitm and its layout is only used by sjlj.S so the
signed address does not escape. Saving signed x30 into gtm_jmpbuf
provides a bit of extra protection, but more importantly it allows
adding the PAC-RET support without changing the existing code much.

In theory bti and pac-ret protection can be added unconditionally
since the instructions are in the nop space, in practice they
can cause trouble if some tooling does not understand the gnu
property note (e.g. old binutils) or some unwinder or debugger
does not understand the new dwarf op code used for pac-ret (e.g
old gdb). So the code is written to only support branch-protection
according to the code generation options.

libitm/ChangeLog:

	* config/aarch64/sjlj.S: Add conditional pac-ret protection.

sjlj.S did not have the GNU property note markup and the BTI c
instructions that are necessary when it is built with branch
protection.

The notes are only added when libitm is built with branch
protection, because old linkers mishandle the note (merge
them incorrectly or emit warnings), the BTI instructions
are added unconditionally.

2020-07-09  Szabolcs Nagy  <szabolcs.nagy@arm.com>

libitm/ChangeLog:

	* config/aarch64/sjlj.S: Add BTI marking and related definitions,
	and add BTI c to function entries.

sjlj.S only had the note on Linux, but it is supposed
to have it on FreeBSD too.

2020-07-09  Szabolcs Nagy  <szabolcs.nagy@arm.com>

libitm/ChangeLog:

	* config/aarch64/sjlj.S: Add stack note if __FreeBSD__ is defined.

Avoid nested save_CFLAGS and save_LDFLAGS by replacing save_CFLAGS and
save_LDFLAGS with cet_save_CFLAGS and cet_save_LDFLAGS in cet.m4.

config/

	PR bootstrap/95413
	* cet.m4: Replace save_CFLAGS and save_LDFLAGS with
	cet_save_CFLAGS and cet_save_LDFLAGS.

gcc/

	PR bootstrap/95413
	* configure: Regenerated.

libatomic/

	PR bootstrap/95413
	* configure: Regenerated.

libbacktrace/

	PR bootstrap/95413
	* configure: Regenerated.

libcc1/

	PR bootstrap/95413
	* configure: Regenerated.

libcpp/

	PR bootstrap/95413
	* configure: Regenerated.

libdecnumber/

	PR bootstrap/95413
	* configure: Regenerated.

libgcc/

	PR bootstrap/95413
	* configure: Regenerated.

libgfortran/

	PR bootstrap/95413
	* configure: Regenerated.

libgomp/

	PR bootstrap/95413
	* configure: Regenerated.

libiberty/

	PR bootstrap/95413
	* configure: Regenerated.

libitm/

	PR bootstrap/95413
	* configure: Regenerated.

libobjc/

	PR bootstrap/95413
	* configure: Regenerated.

libphobos/

	PR bootstrap/95413
	* configure: Regenerated.

libquadmath/

	PR bootstrap/95413
	* configure: Regenerated.

libsanitizer/

	PR bootstrap/95413
	* configure: Regenerated.

libssp/

	PR bootstrap/95413
	* configure: Regenerated.

libstdc++-v3/

	PR bootstrap/95413
	* configure: Regenerated.

libvtv/

	PR bootstrap/95413
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/95413
	* configure: Regenerated.

zlib/

	PR bootstrap/95413
	* configure: Regenerated.

When defaulting CET run-time support to auto, check if -fcf-protection
works.  Even if the stage1 GCC doesn't support -fcf-protection, since
the final GCC does, CET run-time support will be enabled by default if
binutils support CET.

config/

	PR bootstrap/95147
	* cet.m4 (GCC_CET_FLAGS): Also check if -fcf-protection works
	when defaulting to auto.

libatomic/

	PR bootstrap/95147
	* configure: Regenerated.

libbacktrace/

	PR bootstrap/95147
	* configure: Regenerated.

libgcc/

	PR bootstrap/95147
	* configure: Regenerated.

libgfortran/

	PR bootstrap/95147
	* configure: Regenerated.

libgomp/

	PR bootstrap/95147
	* configure: Regenerated.

libitm/

	PR bootstrap/95147
	* configure: Regenerated.

libobjc/

	PR bootstrap/95147
	* configure: Regenerated.

libphobos/

	PR bootstrap/95147
	* configure: Regenerated.

libquadmath/

	PR bootstrap/95147
	* configure: Regenerated.

libsanitizer/

	PR bootstrap/95147
	* configure: Regenerated.

libssp/

	PR bootstrap/95147
	* configure: Regenerated.

libstdc++-v3/

	PR bootstrap/95147
	* configure: Regenerated.

libvtv/

	PR bootstrap/95147
	* configure: Regenerated.

zlib/

	PR bootstrap/95147
	* configure: Regenerated.

CET has been added since GCC 8.  This patch defaults CET run-time support
to auto.  It enables CET run-time support if asssembler supports CET
instructions and multi-byte NOPs are enabled via SSE2.

config/

	* cet.m4 (GCC_CET_FLAGS): Change default to auto.

gcc/

	* configure: Regenerated.

libatomic/

	* configure: Regenerated.

libbacktrace/

	* configure: Regenerated.

libcc1/

	* configure: Regenerated.

libcpp/

	* configure: Regenerated.

libdecnumber/

	* configure: Regenerated.

libgcc/

	* configure: Regenerated.

libgfortran/

	* configure: Regenerated.

libgomp/

	* configure: Regenerated.

libitm/

	* configure: Regenerated.

libobjc/

	* configure: Regenerated.

libquadmath/

	* configure: Regenerated.

libsanitizer/

	* configure: Regenerated.

libssp/

	* configure: Regenerated.

libstdc++-v3/

	* configure: Regenerated.

libvtv/

	* configure: Regenerated.

zlib/

	* configure: Regenerated.

I discovered that libitm:
(a) declares __cxa_allocate_exception and friends directly,
(b) doesn't mark them as 'throw()'
(c) doesn't mark the replacment fns _ITM_$foo as nothrow either

We happen to get away with it because of code in the compiler that,
although it checks the parameter types, doesn't check the exception
specification.  (One reason being they used to not be part of the
language's type system, but now they are.)  I suspect this can lead us
to generate pessimal code later, if we've seen one of these decls
earlier.  Anyway, with modules it becomes trickier[*], so I'm trying
to clean it up and not be a problem.  I see Jakub fixed part of the
problem
(https://gcc.gnu.org/pipermail/gcc-patches/2018-December/513302.html)
AFAICT, he did fix libitm's decls, but left the lax parm-type checking
in the compiler.

libitm.h is not very informative about specification:
  in version 1 of http://www.intel.com/some/path/here.pdf.  */

Anyway, it was too fiddly to have libitm pick up the declarations from
libsupc++.  Besides it makes them weak declarations, and then provides
definitions for non-elf systems.  So this patch adds the expected
'throw()'

	* libitm/libitm.h (_ITM_NOTHROW): Define.
	(_ITM_cxa_allocate_exception, _ITM_cxa_free_exception)
	(_ITM_cxa_begin_catch): Use it.
	* eh_cpp.cc: Add throw() to __cxa_allocate_exception,
	__cxa_free_exception, __cxa_begin_catch, __cxa_tm_cleanup,
	__cxa_get_globals.
	(_ITM_cxa_allocate_exception, _ITM_cxa_free_exception)
	(_ITM_cxa_begin_catch): Likewise.

Diagnostic coloring makes the log file hard to read when there's a
problem.  Let's do without it.

            * Testsuite/lib/libitm.exp (libitm_init): Add
            -fdiagnostics-color=never to options.

On bare-metal targets, I/O support is typically provided by a BSP and
requires a linker script and/or hosting library to be specified on the
linker command line.  Linking an empty program with the default linker
script may succeed, however, which confuses libstdc++ configuration
when programs that probe for the presence of various I/O features fail
with link errors.

2020-02-12  Sandra Loosemore  <sandra@codesourcery.com>

	PR libstdc++/79193
	PR libstdc++/88999

	config/
	* no-executables.m4: Use a non-empty program to test for linker
	support.

	libgcc/
	* configure: Regenerated.

	libgfortran/
	* configure: Regenerated.

	libiberty/
	* configure: Regenerated.

	libitm/
	* configure: Regenerated.

	libobjc/
	* configure: Regenerated.

	libquadmath/
	* configure: Regenerated.

	libssp/
	* configure: Regenerated.

	libstdc++v-3/
	* configure: Regenerated.

Provide means, in the form of a `--with-toolexeclibdir=' configuration
option, to override the default installation directory for target
libraries, otherwise known as $toolexeclibdir.  This is so that it is
possible to get newly-built libraries, particularly the shared ones,
installed in a common place, so that they can be readily used by the
target system as their host libraries, possibly over NFS, without a need
to manually copy them over from the currently hardcoded location they
would otherwise be installed in.

In the presence of the `--enable-version-specific-runtime-libs' option
and for configurations building native GCC the option is ignored.

	config/
	* toolexeclibdir.m4: New file.

	gcc/
	* doc/install.texi (Cross-Compiler-Specific Options): Document
	`--with-toolexeclibdir' option.

	libada/
	* Makefile.in (configure_deps): Add `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	libatomic/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libffi/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* include/Makefile.in: Regenerate.
	* man/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libgcc/
	* Makefile.in (configure_deps): Add `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	libgfortran/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libgomp/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libhsail-rt/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libitm/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libobjc/
	* Makefile.in (aclocal_deps): Add `toolexeclibdir.m4'.
	* aclocal.m4: Include `toolexeclibdir.m4'.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* configure: Regenerate.

	liboffloadmic/
	* plugin/configure.ac: Handle `--with-toolexeclibdir='.
	* plugin/Makefile.in: Regenerate.
	* plugin/aclocal.m4: Regenerate.
	* plugin/configure: Regenerate.
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libphobos/
	* m4/druntime.m4: Handle `--with-toolexeclibdir='.
	* m4/Makefile.in: Regenerate.
	* libdruntime/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libquadmath/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libsanitizer/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* asan/Makefile.in: Regenerate.
	* interception/Makefile.in: Regenerate.
	* libbacktrace/Makefile.in: Regenerate.
	* lsan/Makefile.in: Regenerate.
	* sanitizer_common/Makefile.in: Regenerate.
	* tsan/Makefile.in: Regenerate.
	* ubsan/Makefile.in: Regenerate.

	libssp/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

	libstdc++-v3/
	* acinclude.m4: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* doc/Makefile.in: Regenerate.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.in: Regenerate.
	* po/Makefile.in: Regenerate.
	* python/Makefile.in: Regenerate.
	* src/Makefile.in: Regenerate.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++17/Makefile.in: Regenerate.
	* src/c++98/Makefile.in: Regenerate.
	* src/filesystem/Makefile.in: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	libvtv/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* testsuite/Makefile.in: Regenerate.

	zlib/
	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

From-SVN: r279813

	* gcc.c (process_command): Update copyright notice dates.
	* gcov-dump.c (print_version): Ditto.
	* gcov.c (print_version): Ditto.
	* gcov-tool.c (print_version): Ditto.
	* gengtype.c (create_file): Ditto.
	* doc/cpp.texi: Bump @copying's copyright year.
	* doc/cppinternals.texi: Ditto.
	* doc/gcc.texi: Ditto.
	* doc/gccint.texi: Ditto.
	* doc/gcov.texi: Ditto.
	* doc/install.texi: Ditto.
	* doc/invoke.texi: Ditto.
gcc/fortran/ 
	* gfortranspec.c (lang_specific_driver): Update copyright notice
	dates.
	* gfc-internals.texi: Bump @copying's copyright year.
	* gfortran.texi: Ditto.
	* intrinsic.texi: Ditto.
	* invoke.texi: Ditto.
gcc/d/
	* gdc.texi: Bump @copyrights-d year.
gcc/go/
	* gccgo.texi: Bump @copyrights-go year.
gcc/ada/
  	* gnat_ugn.texi: Bump @copying's copyright year.
  	* gnat_rm.texi: Likewise.
libitm/
	* libitm.texi: Bump @copying's copyright year.
libgomp/
	* libgomp.texi: Bump @copying's copyright year.
libquadmath/
	* libquadmath.texi: Bump @copying's copyright year.

From-SVN: r279811

Musl does not support initial-exec tls in dynamically loaded shared
libraries.

libgomp/ChangeLog:

2019-12-03  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	PR libgomp/91938
	* configure.tgt: Avoid IE tls on *-*-musl*.

libitm/ChangeLog:

2019-12-03  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	PR libgomp/91938
	* configure.tgt: Avoid IE tls on *-*-musl*.

From-SVN: r278932

A change made with r275564 ("[ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle 
arm*-*-uclinuxfdpiceabi in configure scripts") to libtool.m4 has not 
regenerated all the `configure' scripts affected.  Fix it.

	gcc/
	* configure: Regenerate.

	libatomic/
	* configure: Regenerate.

	libbacktrace/
	* configure: Regenerate.

	libcc1/
	* configure: Regenerate.

	libffi/
	* configure: Regenerate.

	libgfortran/
	* configure: Regenerate.

	libgomp/
	* configure: Regenerate.

	libhsail-rt/
	* configure: Regenerate.

	libitm/
	* configure: Regenerate.

	libobjc/
	* configure: Regenerate.

	liboffloadmic/
	* configure: Regenerate.

	libphobos/
	* configure: Regenerate.

	libquadmath/
	* configure: Regenerate.

	libsanitizer/
	* configure: Regenerate.

	libssp/
	* configure: Regenerate.

	libstdc++-v3/
	* configure: Regenerate.

	libvtv/
	* configure: Regenerate.

	lto-plugin/
	* configure: Regenerate.

	zlib/
	* configure: Regenerate.

From-SVN: r276213

The ldaddr macro in sjlj.S needs to be updated to support the FDPIC
model.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

	libitm/
	* config/arm/sjlj.S (ldaddr): Add FDPIC support.

From-SVN: r275584

The new arm-uclinuxfdpiceabi target behaves pretty much like
arm-linux-gnueabi. In order to enable the same set of features, we
have to update several configure scripts that generally match targets
like *-*-linux*: in most places, we add *-uclinux* where there is
already *-linux*, or uclinux* when there is already linux*.

In gcc/config.gcc and libgcc/config.host we use *-*-uclinuxfdpiceabi
because there is already a different behaviour for *-*uclinux* target.

In libtool.m4, we use uclinuxfdpiceabi in cases where ELF shared
libraries support is required, as uclinux does not guarantee that.

2019-09-10  Christophe Lyon  <christophe.lyon@st.com>

	config/
	* futex.m4: Handle *-uclinux*.
	* tls.m4 (GCC_CHECK_TLS): Likewise.

	gcc/
	* config.gcc: Handle *-*-uclinuxfdpiceabi.

	libatomic/
	* configure.tgt: Handle arm*-*-uclinux*.
	* configure: Regenerate.

	libgcc/
	* config.host: Handle *-*-uclinuxfdpiceabi.

	libitm/
	* configure.tgt: Handle *-*-uclinux*.
	* configure: Regenerate.

	* libtool.m4: Handle uclinuxfdpiceabi.

From-SVN: r275564

Without this change, libstdc++ is built without futex symbols if GCC
rejects implicit function declarations by default.

From-SVN: r275454

2019-09-03  Chung-Lin Tang <cltang@codesourcery.com>

	libatomic/
	PR other/79543
	* acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libffi/
	PR other/79543
	* acinclude.m4 (LIBAT_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libgomp/
	PR other/79543
	* acinclude.m4 (LIBGOMP_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libitm/
	PR other/79543
	* acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

	libstdc++-v3/
	PR other/79543
	* acinclude.m4 (GLIBCXX_CHECK_LINKER_FEATURES): Fix GNU ld --version
	scanning to conform to the GNU Coding Standards.
	* configure: Regenerate.

From-SVN: r275341

	* Makefile.am (finclude): Remove.
	* Makefile.in: Regenerated.

From-SVN: r270834