The recent float128 ISA3.1 support (r12-1340) has some typos,
it makes the libgcc build fail if it's with one binutils
(assembler) which doesn't support Power10 insns.  The error
looks like:

Error: invalid switch -mpower10
Error: unrecognized option -mpower10
... [...libgcc/shared-object.mk:14: float128-p10.o] Error 1

What this patch does are:
  - fix test target typo libgcc_cv_powerpc_3_1_float128_hw
    (written wrongly as libgcc_cv_powerpc_float128_hw, so it's
     going to build ISA3.1 stuffs just when detecting ISA3.0).
  - fix test used for libgcc_cv_powerpc_3_1_float128_hw check.
  - fix test option used for libgcc_cv_powerpc_3_1_float128_hw
    check.
  - remove the ISA3.1 related contents from t-float128-hw.
  - add new macro FLOAT128_HW_INSNS_ISA3_1 to differentiate
    ISA3.1 content from ISA3.0 part in ifunc support.

Bootstrapped/regtested on:
  - powerpc64le-linux-gnu P10
  - powerpc64le-linux-gnu P9 (w/i and w/o p10 supported as)
  - powerpc64-linux-gnu P8 (w/i and w/o p10 supported as)

libgcc/ChangeLog:

	* configure: Regenerate.
	* configure.ac (test for libgcc_cv_powerpc_3_1_float128_hw): Fix
	typos among the name, CFLAGS and the test.
	* config/rs6000/t-float128-hw (fp128_3_1_hw_funcs, fp128_3_1_hw_src,
	fp128_3_1_hw_static_obj, fp128_3_1_hw_shared_obj, fp128_3_1_hw_obj):
	Remove.
	* config/rs6000/t-float128-p10-hw (FLOAT128_HW_INSNS): Append
	macro FLOAT128_HW_INSNS_ISA3_1.
	(FP128_3_1_CFLAGS_HW): Fix option typo.
	* config/rs6000/float128-ifunc.c (SW_OR_HW_ISA3_1): Guard this with
	FLOAT128_HW_INSNS_ISA3_1.
	(__floattikf_resolve): Likewise.
	(__floatuntikf_resolve): Likewise.
	(__fixkfti_resolve): Likewise.
	(__fixunskfti_resolve): Likewise.
	(__floattikf): Likewise.
	(__floatuntikf): Likewise.
	(__fixkfti): Likewise.
	(__fixunskfti): Likewise.

The files fixkfti-sw.c and fixunskfti-sw.c are renamed versions of
fixkfti.c and fixunskfti.c respectively to do the conversions in software.
The function names in the files were updated with the rename as well as
some white spaces fixes. The file float128-p10.c contains the functions
for using the ISA 3.1 hardware instructions to perform the conversions.

2021-06-08  Carl Love  <cel@us.ibm.com>

gcc/ChangeLog

	* config/rs6000/rs6000.c (__fixkfti, __fixunskfti, __floattikf,
	__floatuntikf): Names changed to __fixkfti_sw, __fixunskfti_sw,
	__floattikf_sw, __floatuntikf_sw respectively.
	* config/rs6000/rs6000.md (floatti<mode>2, floatunsti<mode>2,
	fix_trunc<mode>ti2, fixuns_trunc<mode>ti2): Add
	define_insn for mode IEEE 128.

gcc/testsuite/ChangeLog

	* gcc.target/powerpc/fp128_conversions.c: New file.
	* gcc.target/powerpc/int_128bit-runnable.c(vextsd2q,
	vcmpuq, vcmpsq, vcmpequq, vcmpequq., vcmpgtsq, vcmpgtsq.
	vcmpgtuq, vcmpgtuq.): Update scan-assembler-times.
	(ppc_native_128bit): Remove dg-require-effective-target.

libgcc/ChangeLog

	* config.host: Add if test and set for
	libgcc_cv_powerpc_3_1_float128_hw.
	* config/rs6000/fixkfti.c: Renamed to fixkfti-sw.c.
	Change calls of __fixkfti to __fixkfti_sw.
	* config/rs6000/fixunskfti.c: Renamed to fixunskfti-sw.c.
	Change calls of __fixunskfti to __fixunskfti_sw.
	* config/rs6000/float128-p10.c (__floattikf_hw,
	__floatuntikf_hw, __fixkfti_hw, __fixunskfti_hw): New file.
	* config/rs6000/float128-ifunc.c (SW_OR_HW_ISA3_1): New macro.
	(__floattikf_resolve, __floatuntikf_resolve, __fixkfti_resolve,
	__fixunskfti_resolve): Add resolve functions.
	(__floattikf, __floatuntikf, __fixkfti, __fixunskfti): New functions.
	* config/rs6000/float128-sed (floattitf, __floatuntitf,
	__fixtfti, __fixunstfti): Add editor commands to change names.
	* config/rs6000/float128-sed-hw (__floattitf,
	__floatuntitf, __fixtfti, __fixunstfti): Add editor commands to
	change names.
	* config/rs6000/floattikf.c: Renamed to floattikf-sw.c.
	* config/rs6000/floatuntikf.c: Renamed to floatuntikf-sw.c.
	* config/rs6000/quad-float128.h (__floattikf_sw,
	__floatuntikf_sw, __fixkfti_sw, __fixunskfti_sw, __floattikf_hw,
	__floatuntikf_hw, __fixkfti_hw, __fixunskfti_hw, __floattikf,
	__floatuntikf, __fixkfti, __fixunskfti): New extern declarations.
	* config/rs6000/t-float128 (floattikf, floatuntikf,
	fixkfti, fixunskfti): Remove file names from fp128_ppc_funcs.
	(floattikf-sw, floatuntikf-sw, fixkfti-sw, fixunskfti-sw): Add
	file names to fp128_ppc_funcs.
	* config/rs6000/t-float128-hw(fp128_3_1_hw_funcs,
	fp128_3_1_hw_src, fp128_3_1_hw_static_obj, fp128_3_1_hw_shared_obj,
	fp128_3_1_hw_obj): Add variables for ISA 3.1 support.
	* config/rs6000/t-float128-p10-hw: New file.
	* configure: Update script for isa 3.1 128-bit float support.
	* configure.ac: Add check for 128-bit float hardware support.

gcc/ChangeLog:

	PR gcov-profile/97461
	* gcov-io.h (GCOV_PREALLOCATED_KVP): Remove.

libgcc/ChangeLog:

	PR gcov-profile/97461
	* config.in: Regenerate.
	* configure: Likewise.
	* configure.ac: Check sys/mman.h header file
	* libgcov-driver.c (struct gcov_kvp): Remove static
	pre-allocated pool and use a dynamic one.
	* libgcov.h (MMAP_CHUNK_SIZE): New.
	(gcov_counter_add): Use mmap to allocate pool for struct
	gcov_kvp.

This change introduces support for the most recent versions
of VxWorks on PowerPC targets, for both 32 and 64 bit thanks
to a bi-arch setup.

The system compilers are essentially configured as Linux
toolchains with only a few specificities and we replicate
that model here.

The most visible specificities are the use of secureplt by
default, the pre-definition of some macros that the system
headers still rely on (_VX_CPU and _VX_CPU_FAMILY, for example),
and of course some variations related to the so VxWorks typical
kernel vs RTP mode distinction.

In addition to the introduction of config.gcc and libgcc
configuration chunks, much inspired by the linux ones, the
change

- Reworks rs6000/vxworks.h file to feature bits common to the
  Vx6 and Vx7 port then a separate section for each, where the
  Vx7 part is very short as we rely on the Linux definitions
  for most things.

- Adjusts the CPU macro predefinitions in CPP_SPEC to resort
  to "_VX_CPU" instead of "CPU" for Vx7, to better match the
  more recent system headers expectations,

- Adds a cpu definition case for e6500.

- Changes to the use SUB3TARGET_OVERRIDE_OPTIONS instead of
  SUBSUBTARGET_OVERRIDE_OPTIONS for specifics, so we don't
  override the Linux's version of the latter for vx7.

2020-10-20  Douglas Rupp  <rupp@adacore.com>

gcc/
	* config.gcc (powerpc*-wrs-vxworks7r*): New case.
	* config/rs6000/vxworks.h: Rework to handle VxWorks7.
	Refactor as common bits + vx6 vs vx7 ones. For the
	latter, rely essentially on the Linux configuration
	and adjust CPU to _VX_CPU in CPP_SPEC. Add a case
	for e6500. Use SUB3TARGET_OVERRIDE_OPTIONS for specifics
	to preserve the Linux SUBSUBTARGET_OVERRIDE_OPTIONS
	for vx7.

libgcc/
	* config.host (powerpc*-wrs-vxworks7*): New case.
	* configure.ac: Handle powerpc*-*-vxworks7* as
	powerpc*-*-linux* for ppc-fp_type.
	* configure: Regenerate.

Co-authored-by: Olivier Hainque <hainque@adacore.com>

2020-06-15  Max Filippov  <jcmvbkbc@gmail.com>
gcc/
	* config/xtensa/elf.h (ASM_SPEC, LINK_SPEC): Pass ABI switch to
	assembler/linker.
	* config/xtensa/linux.h (ASM_SPEC, LINK_SPEC): Ditto.
	* config/xtensa/uclinux.h (ASM_SPEC, LINK_SPEC): Ditto.
	* config/xtensa/xtensa.c (xtensa_option_override): Initialize
	xtensa_windowed_abi if needed.
	* config/xtensa/xtensa.h (TARGET_WINDOWED_ABI_DEFAULT): New
	macro.
	(TARGET_WINDOWED_ABI): Redefine to xtensa_windowed_abi.
	* config/xtensa/xtensa.opt (xtensa_windowed_abi): New target
	option variable.
	(mabi=call0, mabi=windowed): New options.
	* doc/invoke.texi: Document new -mabi= Xtensa-specific options.

gcc/testsuite/
	* gcc.target/xtensa/mabi-call0.c: New test.
	* gcc.target/xtensa/mabi-windowed.c: New test.

libgcc/
	* configure: Regenerate.
	* configure.ac: Use AC_COMPILE_IFELSE instead of manual
	preprocessor invocation to check for __XTENSA_CALL0_ABI__.

2020-05-05  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000-builtin.def: Delete changes meant for a
	private branch.
	* config/rs6000/rs6000-c.c: Likewise.
	* config/rs6000/rs6000-call.c: Likewise.
	* gcc/config/rs6000/rs6000.c: Likewise.

2020-05-05  Michael Meissner  <meissner@linux.ibm.com>

	* gcc.dg/nextafter-2.c: Delete changes meant for a private branch.
	* gcc.target/powerpc/pr70117.c: Likewise.

2020-05-05  Michael Meissner  <meissner@linux.ibm.com>

	* config.host: Delete changes meant for a private branch.
	* config/rs6000/t-float128: Likewise.
	* configure.ac: Likewise.
	* configure: Likewise.

As reported in the PR, GCC 10 (and also 9.3.1 but not 9.3.0) fails to build
when using older binutils which lack LSE support, because those instructions
are used in libgcc.
Thanks to Kyrylo's hint, the following patches (hopefully) allow it to build
even with older binutils by using .inst directive if LSE support isn't
available in the assembler.

2020-04-15  Jakub Jelinek  <jakub@redhat.com>

	PR target/93053
	* configure.ac (LIBGCC_CHECK_AS_LSE): Add HAVE_AS_LSE checking.
	* config/aarch64/lse.S: Include auto-target.h, if HAVE_AS_LSE
	is not defined, use just .arch armv8-a.
	(B, M, N, OPN): Define.
	(COMMENT): New .macro.
	(CAS, CASP, SWP, LDOP): Use .inst directive if HAVE_AS_LSE is not
	defined.  Otherwise, move the operands right after the glue? and
	comment out operands where the macros are used.
	* configure: Regenerated.
	* config.in: 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.

contrib/ChangeLog:

2019-12-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config-list.mk: Add msp430-elfbare.

gcc/ChangeLog:

2019-12-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config.gcc: s/msp430*-*-*/msp430-*-*.
	Handle msp430-*-elfbare.
	* config/msp430/msp430-devices.c (TARGET_SUBDIR): Define.
	(_MSPMKSTR): Define.
	(__MSPMKSTR): Define.
	(rest_of_devices_path): Use TARGET_SUBDIR value in string.
	* config/msp430/msp430.c (msp430_option_override): Error if
	-fuse-cxa-atexit is used when it has been disabled at configure time.
	* config/msp430/t-msp430: Define TARGET_SUBDIR when building
	msp430-devices.o.
	* doc/install.texi: Document msp430-*-elf and msp430-*-elfbare.
	* doc/invoke.texi: Update documentation about which path devices.csv is
	searched for.

gcc/testsuite/ChangeLog:

2019-12-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* g++.dg/init/dso_handle1.C: Require cxa_atexit support.
	* g++.dg/init/dso_handle2.C: Likewise.
	* g++.dg/other/cxa-atexit1.C: Likewise.
	* gcc.target/msp430/msp430.exp: Update csv-using-installed.c test to
	handle msp430-elfbare configuration.

libgcc/ChangeLog:

2019-12-16  Jozef Lawrynowicz  <jozef.l@mittosystems.com>

	* config.host: s/msp430*-*-elf/msp430-*-elf*.
	Override default "extra_parts" variable.
	* configure: Regenerate.
	* configure.ac: Disable TM clone registry by default for
	msp430-elfbare.

From-SVN: r279442

	PR target/91833
	* config/aarch64/lse-init.c: Include auto-target.h.  Disable
	initialization if !HAVE_SYS_AUXV_H.
	* configure.ac (AC_CHECK_HEADERS): Add sys/auxv.h.
	* config.in, configure: Rebuild.

From-SVN: r276134

This patch adds libgcc configuration option to disable TM clone 
registry. This option helps to reduce code size for embedded targets 
which do not need transactional memory support.

	gcc/
	* doc/install.texi: Document --disable-tm-clone-registry.
	libgcc/
	* Makefile.in (USE_TM_CLONE_REGISTRY): New.
	(CRTSTUFF_CFLAGS): Use USE_TM_CLONE_REGISTRY.
	* configure.ac: Add --disable-tm-clone-registry option.
	* configure: Regenerate.

From-SVN: r272769

	libstdc++-v3:
	* config/os/solaris/solaris2.10: Move to ...
	* config/os/solaris: ... this.
	* configure.host (os_include_dir): Adapt.
	(abi_baseline_pair): Remove Solaris 10 handling.
	* config/abi/post/i386-solaris2.10: Remove.
	* config/abi/post/sparc-solaris2.10: Remove.
	* config/abi/post/i386-solaris2.11: Rename to ...
	* config/abi/post/i386-solaris: ... this.
	* config/abi/post/sparc-solaris2.11: Rename to ...
	* config/abi/post/sparc-solaris: ... this.

	* libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] [__sun]: Remove
	workaround.

	* testsuite/ext/enc_filebuf/char/13598.cc: Remove *-*-solaris2.10
	xfail.

	libsanitizer:
	* configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
	handling.
	* configure: Regenerate.

	libgcc:
	* config.host: Simplify various *-*-solaris2.1[0-9]* to
	*-*-solaris2*.
	* configure.ac: Likewise.
	* configure: Regenerate.

	* config/i386/sol2-unwind.h (x86_fallback_frame_state): Remove
	Solaris 10 and Solaris 11 < snv_125 handling.

	libbacktrace:
	* configure.ac (have_dl_iterate_phdr): Remove *-*-solaris2.10*
	handling.
	* configure: Regenerate.

	gcc/testsuite:
	* gcc.dg/atomic/c11-atomic-exec-4.c: Simplify triplet to
	*-*-solaris2*.
	* gcc.dg/atomic/c11-atomic-exec-5.c: Likewise.
	* gcc.dg/c99-math-double-1.c: Likewise.
	* gcc.dg/c99-math-float-1.c: Likewise.
	* gcc.dg/c99-math-long-double-1.c: Likewise.
	* gcc.misc-tests/linkage.exp: Simplify triplet to
	x86_64-*-solaris2*.

	* gcc.target/i386/mcount_pic.c: Remove *-*-solaris2.10* && !gld
	xfail.
	* gcc.target/i386/pr63620.c: Likewise.

	* lib/target-supports.exp (check_sse_os_support_available): Remove
	Solaris 9/x86 workaround.

	gcc:
	* config.gcc: Move *-*-solaris2.10* from obsolete configurations
	to unsupported ones.
	Simplify x86_64-*-solaris2.1[0-9]* to x86_64-*-solaris2*.
	* config.host: Likewise.
	* config/i386/sol2.h (ASM_COMMENT_START): Remove.
	* config/sparc/driver-sparc.c (host_detect_local_cpu) [__sun__ &&
	__svr4__]: Remove "brand" fallback.
	[!KSTAT_DATA_STRING]: Remove.
	* configure.ac (gcc_cv_ld_hidden): Simplify *-*-solaris2.1[0-9]*
	to *-*-solaris2*.
	(comdat_group): Likewise.
	(set_have_as_tls): Likewise.
	(gcc_cv_target_dl_iterate_phdr): Likewise.
	(gcc_cv_as_shf_merge): Remove Solaris 10/x86 workaround.
	(gcc_cv_ld_aligned_shf_merge): Remove Solaris 10/SPARC workaround.
	* configure: Regenerate.
	* doc/install.texi: Simplify Solaris target triplets.
	(Specific, i?86-*-solaris2*): Remove Solaris 10 references.
	(Specific, *-*-solaris2*): Document Solaris 10 removal.
	Remove Solaris 10 references.
	Remove obsolete Solaris bug reference.
	(Specific, sparc-sun-solaris2.10): Remove.

From-SVN: r271183

This patch updates GCC to use autoconf 2.69 and automake 1.15.1.
(That's not the latest automake version, but it's the one used by
binutils-gdb, with which consistency is desirable, and in any case
seems a useful incremental update that should make a future update to
1.16.1 easier.)

The changes are generally similar to the binutils-gdb ones, and are
copied from there where shared files and directories are involved
(there are some further changes to such shared directories, however,
which I'd expect to apply to binutils-gdb once this patch is in GCC).
Largely, obsolete AC_PREREQ calls are removed, while many
AC_LANG_SOURCE calls are added to avoid warnings from aclocal and
autoconf.  Multilib support is no longer included in core automake,
meaning that multilib.am needs copying from automake's contrib
directory into the GCC source tree.  Autoconf 2.69 has Go support, so
local copies of that support are removed.  I hope the D support will
soon be submitted to upstream autoconf so the local copy of that can
be removed in a future update.  Changes to how automake generates
runtest calls mean quotes are removed from RUNTEST definitions in five
lib*/testsuite/Makefile.am files (libatomic, libgomp, libitm,
libphobos, libvtv; some others have RUNTEST definitions without
quotes, which are still OK); libgo and libphobos also get
-Wno-override added to AM_INIT_AUTOMAKE so those overrides of RUNTEST
do not generate automake warnings.

Note that the regeneration did not include regeneration of
fixincludes/config.h.in (attempting such regeneration resulted in all
the USED_FOR_TARGET conditionals disappearing; and I don't see
anything in the fixincludes/ directory that would result in such
conditionals being generated, unlike in the gcc/ directory).  Also
note that libvtv/testsuite/other-tests/Makefile.in was not
regenerated; that directory is not listed as a subdirectory for which
Makefile.in gets regenerated by calling "automake" in libvtv/, so I'm
not sure how it's meant to be regenerated.

While I mostly fixed warnings should running aclocal / automake /
autoconf, there were various such warnings from automake in the
libgfortran, libgo, libgomp, liboffloadmic, libsanitizer, libphobos
directories that I did not fix, preferring to leave those to the
relevant subsystem maintainers.  Specifically, most of those warnings
were of the following form (example from libgfortran):

Makefile.am:48: warning: source file 'caf/single.c' is in a subdirectory,
Makefile.am:48: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled.  For now, the corresponding output
automake: object file(s) will be placed in the top-level directory.  However,
automake: this behaviour will change in future Automake versions: they
will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.

I think it's best for the relevant maintainers to add subdir-objects
and do any other associated Makefile.am changes needed.  In some cases
the paths in the warnings involved ../; I don't know if that adds any
extra complications to the use of subdir-objects.

I've tested this with native, cross and Canadian cross builds.  The
risk of any OS-specific issues should I hope be rather lower than if a
libtool upgrade were included (we *should* do such an upgrade at some
point, but it's more complicated - it involves identifying all our
local libtool changes to see if any aren't included in the upstream
version we update to, and reverting an upstream libtool patch that's
inappropriate for use in GCC); I think it would be better to get this
update into GCC so that people can test in different configurations
and we can fix any issues found, rather than to try to get more and
more testing done before it goes in.

top level:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* multilib.am: New file.  From automake.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ, use AC_LANG_SOURCE.
	* ar-lib: New file.
	* test-driver: New file.
	* configure: Re-generate.

config:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* math.m4, tls.m4: Use AC_LANG_SOURCE.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* override.m4 (_GCC_AUTOCONF_VERSION): Bump from 2.64 to 2.69.

fixincludes:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, configure: Regenerate.

gcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use single
	line for second argument of AC_DEFINE_UNQUOTED.
	* doc/install.texi (Tools/packages necessary for modifying GCC):
	Update to autoconf 2.69 and automake 1.15.1.
	* aclocal.m4, config.in, configure: Regenerate.

gnattools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

gotools:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* config/go.m4: Remove file.
	* Makefile.am (ACLOCAL_AMFLAGS): Do not use -I ./config.
	* configure.ac:  Remove AC_PREREQ.  Do not include config/go.m4.
	* Makefile.in, aclocal.m4, configure: Regenerate.

intl:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Add AC_USE_SYSTEM_EXTENSIONS, remove AC_PREREQ.
	* configure: Re-generate.
	* config.h.in: Re-generate.
	* aclocal.m4: Re-generate.

libada:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* configure: Regenerate.

libatomic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* acinclude.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libbacktrace:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libcc1:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libcpp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* aclocal.m4, config.in, configure: Regenerate.

libdecnumber:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* aclocal.m4.

libffi:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove doc/libffi.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, fficonfig.h.in,
	include/Makefile.in, man/Makefile.in, testsuite/Makefile.in:
	Regenerate.

libgcc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* configure: Regenerate.

libgfortran:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libgo [logically part of this change but omitted from the commit]:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* config/go.m4: Remove file.
	* config/libtool.m4: Use AC_LANG_SOURCE.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.  Use
	-Wno-override in AM_INIT_AUTOMAKE call.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libgomp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libgomp.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libhsail-rt:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libiberty:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Remove AC_PREREQ.
	* configure: Re-generate.
	* config.in: Re-generate.

libitm:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Add info-in-builddir.
	(CLEANFILES): Remove libitm.info.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

libobjc:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.
	* aclocal.m4, config.h.in, configure: Regenerate.

liboffloadmic:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* plugin/Makefile.am: Include multilib.am.
	* plugin/configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, plugin/Makefile.in,
	plugin/aclocal.m4, plugin/configure: Regenerate.

libphobos:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use -Wno-override in
	AM_INIT_AUTOMAKE call.
	* m4/autoconf.m4: Add extra argument to AC_LANG_DEFINE call.
	* m4/druntime/os.m4: Use AC_LANG_SOURCE.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, libdruntime/Makefile.in,
	src/Makefile.in, testsuite/Makefile.in: Regenerate.

libquadmath:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.8.  Add info-in-builddir.
	(all-local): Define outside conditional code.
	(CLEANFILES): Remove libquadmath.info.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

libsanitizer:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, asan/Makefile.in, configure,
	interception/Makefile.in, libbacktrace/Makefile.in,
	lsan/Makefile.in, sanitizer_common/Makefile.in, tsan/Makefile.in,
	ubsan/Makefile.in: Regenerate.

libssp:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	(AUTOMAKE_OPTIONS): Remove 1.9.5.
	* configure.ac: Remove AC_PREREQ.  Quote argument to
	AC_RUN_IFELSE.
	* Makefile.in, aclocal.m4, configure: Regenerate.

libstdc++-v3:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* Makefile.in, aclocal.m4, configure, doc/Makefile.in,
	include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
	python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
	src/c++17/Makefile.in, src/c++98/Makefile.in,
	src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.

libvtv:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.
	* configure.ac: Remove AC_PREREQ.
	* testsuite/Makefile.am (RUNTEST): Remove quotes.
	* Makefile.in, aclocal.m4, configure, testsuite/Makefile.in:
	Regenerate.

lto-plugin:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* configure.ac: Remove AC_PREREQ.  Use AC_LANG_SOURCE.
	* Makefile.in, aclocal.m4, config.h.in, configure: Regenerate.

zlib:
2018-10-31  Joseph Myers  <joseph@codesourcery.com>

	PR bootstrap/82856
	* Makefile.am: Include multilib.am.

	Merge from binutils-gdb:
	2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>

	* configure.ac: Modernize AC_INIT call, remove AC_PREREQ.
	* Makefile.am (AUTOMAKE_OPTIONS): Remove 1.8, cygnus, add foreign.
	* Makefile.in: Re-generate.
	* aclocal.m4: Re-generate.
	* configure: Re-generate.

From-SVN: r265695

	* configure.ac (solaris_ld_v2_maps): New test.
	* configure: Regenerate.
	* Makefile.in (solaris_ld_v2_maps): New variable.
	* config/t-slibgcc-sld (libgcc-unwind.map): Emit v2 mapfile syntax
	if supported.

From-SVN: r264382

For some targets (in my case VxWorks 5.5), libgcov does not compile due
to missing functions and macros such as getpid() and F_OK.

Incidentally, gcc/Makefile.in already contains comments such as

# Install gcov if it was compiled.

but there is no logic in place to actually allow gcov to not be
compiled.

So add an option for disabling build and install of libgcov and the
related host tools.

From-SVN: r262180

re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call restore stub gives bad backtrace)

	PR debug/83917
	* configure.ac (AS_HIDDEN_DIRECTIVE): AC_DEFINE_UNQUOTED this to
	$asm_hidden_op if visibility ("hidden") attribute works.
	(HAVE_AS_CFI_SECTIONS): New AC_DEFINE.
	* config/i386/i386-asm.h: Don't include auto-host.h.
	(PACKAGE_VERSION, PACKAGE_NAME, PACKAGE_STRING, PACKAGE_TARNAME,
	PACKAGE_URL): Don't undefine.
	(USE_GAS_CFI_DIRECTIVES): Don't use nor define this macro, instead
	guard cfi_startproc only on ifdef __GCC_HAVE_DWARF2_CFI_ASM.
	(FN_HIDDEN): Change guard from #ifdef HAVE_GAS_HIDDEN to
	#ifdef AS_HIDDEN_DIRECTIVE, use AS_HIDDEN_DIRECTIVE macro in the
	definition instead of hardcoded .hidden.
	* config/i386/cygwin.S: Include i386-asm.h first before .cfi_sections
	directive.  Use #ifdef HAVE_AS_CFI_SECTIONS rather than
	#ifdef HAVE_GAS_CFI_SECTIONS_DIRECTIVE to guard .cfi_sections.
	(USE_GAS_CFI_DIRECTIVES): Don't define.
	* configure: Regenerated.
	* config.in: Likewise.

From-SVN: r258057

Enable building libgcc with CET options by default on Linux/x86 if
binutils supports CET v2.0.  It can be disabled with --disable-cet.
It is an error to configure GCC with --enable-cet if bintuiils
doesn't support CET v2.0.

ENDBR instruction is added to __morestack_large_model since it is
called indirectly.

2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

config/
	* cet.m4: New file.

gcc/
	* config.gcc (extra_headers): Add cet.h for x86 targets.
	* config/i386/cet.h: New file.
	* doc/install.texi: Add --enable-cet/--disable-cet.

libgcc/
	* Makefile.in (configure_deps): Add $(srcdir)/../config/cet.m4.
	(CET_FLAGS): New.
	* config/i386/morestack.S: Include <cet.h>.
	(__morestack_large_model): Add _CET_ENDBR at function entrance.
	* config/i386/resms64.h: Include <cet.h>.
	* config/i386/resms64f.h: Likewise.
	* config/i386/resms64fx.h: Likewise.
	* config/i386/resms64x.h: Likewise.
	* config/i386/savms64.h: Likewise.
	* config/i386/savms64f.h: Likewise.
	* config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Add $(CET_FLAGS).
	(CRTSTUFF_T_CFLAGS): Likewise.
	* configure.ac: Include ../config/cet.m4.
	Set and substitute CET_FLAGS.
	* configure: Regenerated.

From-SVN: r254868

	libgcc:
	* config.host (*-*-solaris2*): Adapt comment for Solaris 12
	renaming.
	* config/sol2/crtpg.c (__start_crt_compiler): Likewise.
	* configure.ac (libgcc_cv_solaris_crts): Likewise.
	* configure: Regenerate.

	gcc:
	* config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since
	Solaris 11.  Update comment.
	* configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12
	renaming.
	* config/sol2.h (STARTFILE_SPEC): Likewise.
	* configure: Regenerate.

	gcc/testsuite:
	* lib/target-supports.exp (check_effective_target_pie): Adapt
	comment for Solaris 12 renaming.

	* gcc.dg/torture/pr60092.c: Remove *-*-solaris2.11* dg-xfail-run-if.

From-SVN: r254737

gcc/testsuite:
	* gcc.target/i386/pr82196-1.c: (b): Remove volatile asm.
	* gcc.target/i386/pr82196-2.c: (b): Likewise.

libgcc:
	* configure.ac: Add Check for HAVE_AS_AVX.
	* config.in: Regenerate.
	* configure: Likewise.
	* config/i386/i386-asm.h: Include auto-target.h from libgcc.
	(SSE_SAVE, SSE_RESTORE): Emit .byte sequence for !HAVE_AS_AVX.
	Correct out-of-date comments.

From-SVN: r253116

re PR target/81193 (PowerPC GCC __builtin_cpu_is and __builtin_cpu_supports should warn about old libraries)

[gcc]
2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81193
	* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): If GLIBC
	provides the hardware capability bits, define the macro
	__BUILTIN_CPU_SUPPORTS__.
	* config/rs6000/rs6000.c (cpu_expand_builtin): Generate a warning
	if GLIBC does not provide the hardware capability bits.  Add a
	gcc_unreachable call if the built-in cpu function is neither
	__builtin_cpu_is nor __builtin_cpu_supports.
	(rs6000_get_function_versions_dispatcher): Change the warning
	that an old GLIBC is used which does not export the capability
	bits to be an error.
	* doc/extend.texi (target_clones attribute): Document the
	restriction that GLIBC 2.23 or newer is needed on the PowerPC.
	(PowerPC built-in functions): Document that GLIBC 2.23 or newer is
	needed by __builtin_cpu_is and __builtin_cpu_supports.  Document
	the macros defined by GCC if the newer GLIBC is available.

[gcc/testsuite]
2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81193
	* gcc.target/powerpc/bmi-andn-1.c: Add guard against using
	__builtin_cpu_supports with old GLIBC's.
	* gcc.target/powerpc/bmi-andn-2.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-1.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-2.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-4.c: Likewise.
	* gcc.target/powerpc/bmi-bextr-5.c: Likewise.
	* gcc.target/powerpc/bmi-blsi-1.c: Likewise.
	* gcc.target/powerpc/bmi-blsi-2.c: Likewise.
	* gcc.target/powerpc/bmi-blsmsk-1.c: Likewise.
	* gcc.target/powerpc/bmi-blsmsk-2.c: Likewise.
	* gcc.target/powerpc/bmi-blsr-1.c: Likewise.
	* gcc.target/powerpc/bmi-blsr-2.c: Likewise.
	* gcc.target/powerpc/bmi-tzcnt-1.c: Likewise.
	* gcc.target/powerpc/bmi-tzcnt-2.c: Likewise.
	* gcc.target/powerpc/bmi2-bzhi32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-bzhi64-1.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx32-2.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx64-1.c: Likewise.
	* gcc.target/powerpc/bmi2-mulx64-2.c: Likewise.
	* gcc.target/powerpc/bmi2-pdep32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-pdep64-1.c: Likewise.
	* gcc.target/powerpc/bmi2-pext32-1.c: Likewise.
	* gcc.target/powerpc/bmi2-pext64-1.c: Likewise.
	* gcc.target/powerpc/cpu-builtin-1.c: Likewise.

[libgcc]
2017-07-12  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/81193
	* configure.ac (PowerPC float128 hardware support): Test whether
	we can use __builtin_cpu_supports before enabling the ifunc
	handler.
	* configure: Regenerate.

From-SVN: r250165

2017-06-21  Richard Biener  <rguenther@suse.de>

	PR gcov-profile/81080
	* configure.ac: Add AC_SYS_LARGEFILE.
	* libgcov.h: Include auto-target.h before tsystem.h to pick
	up _FILE_OFFSET_BITS which might differ for multilibs.
	* config.in: Regenerate.
	* configure: Likewise.

From-SVN: r249435

This fixes float128 on BE and on 32-bit.

The configure tests need to use -mabi=altivec for 32-bit, since it is
not the default there.  That also enables the "vector" keyword, used by
the tests.  To do this it temporarily adds a few flags to the CFLAGS
variable.

It also fixes a syntax error in the libgcc_cv_powerpc_float128_hw test
(the function name was missing in the function declaration).

Regenerating config.in (via autoreconf) removed the duplicate definition
of HAVE_SOLARIS_CRTS.

Finally, this adds a "-mfloat128-hardware requires -m64" test to
rs6000.c: all the current patterns need 64-bit registers.  Maybe we'll
want to add float128 hardware support to 32-bit some day, but certainly
not today.


	* config/rs6000/rs6000.c (rs6000_option_override_internal): Disallow
	-mfloat128-hardware without -m64.

libgcc/
	* configure.ac (test for libgcc_cv_powerpc_float128): Temporarily
	modify CFLAGS.  Add -mabi=altivec -mvsx -mfloat128.
	(test for libgcc_cv_powerpc_float128_hw): Add -mpower9-vector and
	-mfloat128-hardware to the CFLAGS.  Fix syntax error in the C snippet.
	* configure: Regenerate.
	* config.in: Regenerate.

From-SVN: r246043

	PR other/79046
	* configure: Regenerated.
config/
	* acx.m4 (GCC_BASE_VER): New m4 function.
	(ACX_TOOL_DIRS): Require GCC_BASE_VER, for
	--with-gcc-major-version-only use just major number from BASE-VER.
gcc/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
	version from BASE-VER file.
	(CFLAGS-gcc.o): Add -DBASEVER=$(BASEVER_s).
	(gcc.o): Depend on $(BASEVER).
	* common.opt (dumpfullversion): New option.
	* gcc.c (driver_handle_option): Handle OPT_dumpfullversion.
	* doc/invoke.texi: Document -dumpfullversion.
	* doc/install.texi: Document --with-gcc-major-version-only.
	* configure: Regenerated.
libatomic/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libgomp/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libgcc/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
	version from BASE-VER file.
	* configure: Regenerated.
libssp/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
liboffloadmic/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* aclocal.m4: Include ../config/acx.m4.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libquadmath/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libmpx/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libada/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
	version from BASE-VER file.
	* configure: Regenerated.
lto-plugin/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libitm/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
fixincludes/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
libcilkrts/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* aclocal.m4: Include ../config/acx.m4.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libcc1/
	* configure.ac: Add GCC_BASE_VER.  For --with-gcc-major-version-only
	use just major number from BASE-VER.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libobjc/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.in (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
libstdc++-v3/
	* configure.ac: Add GCC_BASE_VER.
	* fragment.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* po/Makefile.in: Regenerated.
	* libsupc++/Makefile.in: Regenerated.
	* testsuite/Makefile.in: Regenerated.
	* src/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
	* include/Makefile.in: Regenerated.
	* doc/Makefile.in: Regenerated.
	* python/Makefile.in: Regenerated.
	* src/c++11/Makefile.in: Regenerated.
	* src/c++98/Makefile.in: Regenerated.
	* src/filesystem/Makefile.in: Regenerated.
libvtv/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* testsuite/Makefile.in: Regenerated.
	* configure: Regenerated.
	* Makefile.in: Regenerated.
libsanitizer/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* libbacktrace/Makefile.in: Regenerated.
	* interception/Makefile.in: Regenerated.
	* asan/Makefile.in: Regenerated.
	* ubsan/Makefile.in: Regenerated.
	* configure: Regenerated.
	* sanitizer_common/Makefile.in: Regenerated.
	* lsan/Makefile.in: Regenerated.
	* Makefile.in: Regenerated.
	* tsan/Makefile.in: Regenerated.
libgfortran/
	* configure.ac: Add GCC_BASE_VER.
	* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
	get version from BASE-VER file.
	* configure: Regenerated.
	* Makefile.in: Regenerated.

From-SVN: r244521

	* configure.ac: Do not create links, only substitute the filenames.
	* configure: Regenerate.
	* Makefile.in: Assign the substitution results to variables.
	(LIBGCC_LINKS): Define.
	(enable-execute-stack.c): New rule.
	(unwind.h): Likewise.
	(md-unwind-support.h): Likewise.
	(sfp-machine.h): Likewise.
	(gthr-default.h): Likewise.
	Add $(LIBGCC_LINKS) to the prerequisites of all object files and
	unwind.h as prerequisite of install-unwind_h-forbuild.

From-SVN: r240312

[gcc]
2016-04-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/70381
	* config/rs6000/rs6000.c (rs6000_opt_masks): Disable using the
	target attribute and pragma from changing the -mfloat128
	and -mfloat128-hardware options.

	* doc/extend.texi (Additional Floating Types): Document PowerPC
	__float128 restrictions.

[libgcc]
2016-04-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/70381
	* configure.ac (powerpc*-*-linux*): Rework tests to build
	__float128 emulation routines to not depend on using #pragma GCC
	target to enable -mfloat128.
	* configure: Regnerate.

[gcc/testsuite]
2016-04-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/70381
	* gcc.target/powerpc/float128-1.c: New tests to make sure the
	__float128 emulator is built and runs.
	* gcc.target/powerpc/float128-1.c: Likewise.

	* lib/target-supports.exp (check_ppc_float128_sw_available):
	Rework tests for __float128 software and hardware
	availability. Fix exit condition to return 0 on success.

From-SVN: r234884

gcc/
	PR driver/68463
	* config/gnu-user.h (CRTOFFLOADBEGIN): Define.  Add crtoffloadbegin.o if
	offloading is enabled and -fopenacc or -fopenmp is specified.
	(CRTOFFLOADEND): Likewise.
	(GNU_USER_TARGET_STARTFILE_SPEC): Add CRTOFFLOADBEGIN.
	(GNU_USER_TARGET_ENDFILE_SPEC): Add CRTOFFLOADEND.
	* lto-wrapper.c (offloadbegin, offloadend): Remove static vars.
	(offload_objects_file_name): New static var.
	(tool_cleanup): Remove offload_objects_file_name file.
	(find_offloadbeginend): Replace with ...
	(find_crtoffloadtable): ... this.
	(run_gcc): Remove offload_argc and offload_argv.
	Get offload_objects_file_name from -foffload-objects=... option.
	Read names of object files with offload from this file, pass them to
	compile_images_for_offload_targets.  Don't call find_offloadbeginend and
	don't pass offloadbegin and offloadend to the linker.  Don't pass
	offload non-LTO files to the linker, because now they're not claimed.
libgcc/
	PR driver/68463
	* Makefile.in (crtoffloadtable$(objext)): New rule.
	* configure.ac (extra_parts): Add crtoffloadtable$(objext) if
	enable_offload_targets is not empty.
	* configure: Regenerate.
	* offloadstuff.c: Move __OFFLOAD_TABLE__ from crtoffloadend to
	crtoffloadtable.
libgomp/
	PR driver/68463
	* testsuite/libgomp.oacc-c-c++-common/parallel-dims-2.c: Remove.
lto-plugin/
	PR driver/68463
	* lto-plugin.c (struct plugin_offload_file): New.
	(offload_files): Change type.
	(offload_files_last, offload_files_last_obj): New.
	(offload_files_last_lto): New.
	(free_2): Adjust accordingly.
	(all_symbols_read_handler): Don't add offload files to lto_arg_ptr.
	Don't call free_1 for offload_files.  Write names of object files with
	offloading to the temporary file.  Add new option to lto_arg_ptr.
	(claim_file_handler): Don't claim file if it contains offload sections
	without LTO sections.  If it contains offload sections, add to the list.

From-SVN: r233712

2016-01-21  Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Steven Munroe <munroesj@linux.vnet.ibm.com>
	    Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com>

	* config/rs6000/float128-sed: New files to convert TF names to KF
	names for PowerPC IEEE 128-bit floating point support.
	* config/rs6000/float128-sed-hw: Likewise.

	* config/rs6000/float128-hw.c: New file for ISA 3.0 IEEE 128-bit
	floating point hardware support.

	* config/rs6000/float128-ifunc.c: New file to pick either IEEE
	128-bit floating point software emulation or use ISA 3.0 hardware
	support if it is available.

	* config/rs6000/quad-float128.h: New file to support IEEE 128-bit
	floating point.

	* config/rs6000/extendkftf2-sw.c: New file, convert IEEE 128-bit
	floating point to IBM extended double.

	* config/rs6000/trunctfkf2-sw.c: New file, convert IBM extended
	double to IEEE 128-bit floating point.

	* config/rs6000/t-float128: New Makefile fragments to enable
	building __float128 emulation support.
	* config/rs6000/t-float128-hw: Likewise.

	* config/rs6000/sfp-exceptions.c: New file to provide exception
	support for IEEE 128-bit floating point.

	* config/rs6000/floattikf.c: New files for converting between IEEE
	128-bit floating point and signed/unsigned 128-bit integers.
	* config/rs6000/fixunskfti.c: Likewise.
	* config/rs6000/fixkfti.c: Likewise.
	* config/rs6000/floatuntikf.c: Likewise.

	* config/rs6000/sfp-machine.h (_FP_W_TYPE_SIZE): Use 64-bit types
	when building on 64-bit systems, or when VSX is enabled.
	(_FP_W_TYPE): Likewise.
	(_FP_WS_TYPE): Likewise.
	(_FP_I_TYPE): Likewise.
	(TItype): Define on 64-bit systems.
	(UTItype): Likewise.
	(TI_BITS): Likewise.
	(_FP_MUL_MEAT_D): Add support for using 64-bit types.
	(_FP_MUL_MEAT_Q): Likewise.
	(_FP_DIV_MEAT_D): Likewise.
	(_FP_DIV_MEAT_Q): Likewise.
	(_FP_NANFRAC_D): Likewise.
	(_FP_NANFRAC_Q): Likewise.
	(ISA_BIT): Add exception support if we are being compiled on a
	machine with hardware floating point support to build the IEEE
	128-bit emulation functions.
	(FP_EX_INVALID): Likewise.
	(FP_EX_OVERFLOW): Likewise.
	(FP_EX_UNDERFLOW): Likewise.
	(FP_EX_DIVZERO): Likewise.
	(FP_EX_INEXACT): Likewise.
	(FP_EX_ALL): Likewise.
	(__sfp_handle_exceptions): Likewise.
	(FP_HANDLE_EXCEPTIONS): Likewise.
	(FP_RND_NEAREST): Likewise.
	(FP_RND_ZERO): Likewise.
	(FP_RND_PINF): Likewise.
	(FP_RND_MINF): Likewise.
	(FP_RND_MASK): Likewise.
	(_FP_DECL_EX): Likewise.
	(FP_INIT_ROUNDMODE): Likewise.
	(FP_ROUNDMODE): Likewise.

	* libgcc/config.host (powerpc*-*-linux*): If compiler can compile
	VSX code, enable IEEE 128-bit floating point.  If the compiler can
	compile IEEE 128-bit floating point code with ISA 3.0 IEEE 128-bit
	floating point hardware instructions and it supports declaring
	functions with the ifunc attribute, enable ifunc functions to
	switch between software and hardware support.
	* configure.ac (powerpc*-*-linux*): Likewise.
	* configure: Regenerate.



Co-Authored-By: Steven Munroe <munroesj@linux.vnet.ibm.com>
Co-Authored-By: Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com>

From-SVN: r232685

From-SVN: r232392

[gcc]
2016-01-13  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000-builtin.def (BU_FLOAT128_2): Add support
	for pack/unpack functions for __ibm128.
	(PACK_IF): Likewise.
	(UNPACK_IF): Likewise.

	* config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
	support for __ibm128 pack/unpack functions.
	(rs6000_invalid_builtin): Likewise.
	(rs6000_init_builtins): Likewise.
	(rs6000_opt_masks): Likewise.

	* config/rs6000/rs6000.h (MASK_FLOAT128): Add short name.
	(RS6000_BTM_FLOAT128): Add support for __ibm128 pack/unpack
	functions
	(RS6000_BTM_COMMON): Likewise.

	* config/rs6000/rs6000.md (f128_vsx): New mode attribute.
	(unpack<mode>): Use FMOVE128_FPR iterator instead of FMOVE128, to
	disallow __builtin_{pack,unpack}_longdouble if long double is IEEE
	128-bit floating point.  Add support for the double values to be
	in Altivec registers for TF/IF packing and unpacking, but restrict
	TD packing sub-fields to be FPR registers.  Don't allow overlapped
	register support for packing.  Allow pack inputs to be memory
	locations.  Don't build generator functions for unpack<mode>_dm
	and unpack<mode>_nodm.
	(unpack<mode>_dm): Likewise.
	(unpack<mode>_nodm): Likewise.
	(pack<mode>): Likewise.

	* config/rs6000/rs6000-builtin.def (__builtin_pack_ibm128): Add
	built-in functions to pack/unpack explicit __ibm128 values.
	(__builtin_unpack_ibm128): Likewise.

	* doc/extend.texi (PowerPC Built-in Functions): Document
	__builtin_pack_ibm128 and __builtin_unpack_ibm128.

[libgcc]
2016-01-13  Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Steven Munroe <munroesj@linux.vnet.ibm.com>
	    Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com>

	* config/rs6000/sfp-exceptions.c: New file to provide exception
	support for IEEE 128-bit floating point.

	* config/rs6000/float128-hw.c: New file for ISA 3.0 IEEE 128-bit
	floating point hardware support.

	* config/rs6000/floattikf.c: New files for IEEE 128-bit floating
	point conversions.
	* config/rs6000/fixunskfti.c: Likewise.
	* config/rs6000/fixkfti.c: Likewise.
	* config/rs6000/floatuntikf.c: Likewise.
	* config/rs6000/extendkftf2-sw.c: Likewise.
	* config/rs6000/trunctfkf2-sw.c: Likewise.

	* config/rs6000/float128-ifunc.c: New file to pick either IEEE
	128-bit floating point software emulation or use ISA 3.0 hardware
	support if it is available.

	* config/rs6000/quad-float128.h: New file to support IEEE 128-bit
	floating point.

	* config/rs6000/t-float128: New Makefile fragments to enable
	building __float128 emulation support.
	* config/rs6000/t-float128-hw: Likewise.

	* config/rs6000/float128-sed: New file to convert TF names to KF
	names for PowerPC IEEE 128-bit floating point support.

	* config/rs6000/sfp-machine.h (_FP_W_TYPE_SIZE): Use 64-bit types
	when building on 64-bit systems, or when VSX is enabled.
	(_FP_W_TYPE): Likewise.
	(_FP_WS_TYPE): Likewise.
	(_FP_I_TYPE): Likewise.
	(TItype): Define on 64-bit systems.
	(UTItype): Likewise.
	(TI_BITS): Likewise.
	(_FP_MUL_MEAT_D): Add support for using 64-bit types.
	(_FP_MUL_MEAT_Q): Likewise.
	(_FP_DIV_MEAT_D): Likewise.
	(_FP_DIV_MEAT_Q): Likewise.
	(_FP_NANFRAC_D): Likewise.
	(_FP_NANFRAC_Q): Likewise.
	(ISA_BIT): Add exception support if we are being compiled on a
	machine with hardware floating point support to build the IEEE
	128-bit emulation functions.
	(FP_EX_INVALID): Likewise.
	(FP_EX_OVERFLOW): Likewise.
	(FP_EX_UNDERFLOW): Likewise.
	(FP_EX_DIVZERO): Likewise.
	(FP_EX_INEXACT): Likewise.
	(FP_EX_ALL): Likewise.
	(__sfp_handle_exceptions): Likewise.
	(FP_HANDLE_EXCEPTIONS): Likewise.
	(FP_RND_NEAREST): Likewise.
	(FP_RND_ZERO): Likewise.
	(FP_RND_PINF): Likewise.
	(FP_RND_MINF): Likewise.
	(FP_RND_MASK): Likewise.
	(_FP_DECL_EX): Likewise.
	(FP_INIT_ROUNDMODE): Likewise.
	(FP_ROUNDMODE): Likewise.

	* configure.ac (powerpc*-*-linux*): Check whether the PowerPC
	compiler can do __float128.
	* configure: Regenerate.

	* libgcc/config.host (powerpc*-*-linux*): If compiler can compile
	VSX code, enable IEEE 128-bit floating point.

From-SVN: r232346

	gcc:
	* configure.ac (gcc_cv_solaris_crts): New test.
	* configure. Regenerate.
	* config.in: Regenerate.
	* config/sol2.h (STARTFILE_SPEC): Simplify, provide
	HAVE_SOLARIS_CRTS variant.

	libgcc:
	* configure.ac (libgcc_cv_solaris_crts): New test.
	* configure: Regenerate.
	* config.in: Regenerate.
	* config/sol2/crtp.c, config/sol2/crtpg.c: New files.
	* config/gmon-sol2.c: Rename to ...
	* config/sol2/gmon.c: ... this.
	Include auto-target.h.
	(internal_mcount): Wrap setup handling in !HAVE_SOLARIS_CRTS.
	* config/t-sol2: Rename to ...
	* config/sol2/t-sol2: ... this.
	(gmon.o): Reflect renaming.
	(crtp.o, crtpg.o): New rules.
	* config.host (*-*-solaris2*): Reflect renaming.
	Use system CRTs if present.
	Remove default CRT case.

From-SVN: r228077

config/
	* sjlj.m4: New file.
libgcc/
	* configure.ac: Include config/sjlj.m4.
	Remove manual SJLJ check, add GCC_CHECK_SJLJ_EXCEPTIONS and adjust.
	* config.in: Regenerate.
	* configure: Likewise.
	* config.host: Replace enable_sjlj_exceptions by ac_cv_sjlj_exceptions.
libjava/
	* configure.ac: Include config/sjlj.m4.
	Remove manual SJLJ check, add GCC_CHECK_SJLJ_EXCEPTIONS and adjust.
	* include/config.h.in: Regenerate.
	* configure: Likewise.
	* exception.cc: Replace SJLJ_EXCEPTIONS by __USING_SJLJ_EXCEPTIONS__.
	* stacktrace.cc: Likewise.
	* include/default-signal.h: Likewise.
	* sysdep/i386/backtrace.h: Likewise.
libobjc/
	* configure.ac: Remove manual SJLJ check.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* exception.c: Replace SJLJ_EXCEPTIONS by __USING_SJLJ_EXCEPTIONS__.
libstdc++-v3/
	* acinclude.m4 (GLIBCXX_ENABLE_SJLJ_EXCEPTIONS): Delete.
	* configure.ac: Remove GLIBCXX_ENABLE_SJLJ_EXCEPTIONS.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* libsupc++/eh_personality.cc: Replace _GLIBCXX_SJLJ_EXCEPTIONS by
	__USING_SJLJ_EXCEPTIONS__.
	* libsupc++/eh_throw.cc: Likewise.
	* libsupc++/eh_ptr.cc: Likewise.
	* doc/html/manual/appendix_porting.html: Remove
	GLIBCXX_ENABLE_SJLJ_EXCEPTIONS
	* doc/xml/manual/build_hacking.xml: Likewise.
	* doc/html/manual/configure.html: Remove --enable-sjlj-exceptions.
	* doc/xml/manual/configure.xml: Likewise.

From-SVN: r223181

	* Makefile.in (real_host_noncanonical): New variable.
	(libsubdir): Use it.
	* configure.ac (real_host_noncanonical): Compute.  Remove special
	case for intelmicemul.
	* configure: Regenerate.

From-SVN: r222585

call0 is an ABI that doesn't use register windows.

2015-03-03  Max Filippov  <jcmvbkbc@gmail.com>

gcc/
	* config/xtensa/constraints.md ("a" constraint): Include stack
	pointer in case of call0 ABI.
	("q" constraint): Make empty in case of call0 ABI.
	("D" constraint): Include stack pointer in case of call0 ABI.
	* config/xtensa/xtensa-protos.h (xtensa_set_return_address,
	xtensa_expand_epilogue, xtensa_regno_to_class): Add new function
	prototypes.
	* config/xtensa/xtensa.c (xtensa_callee_save_size): New
	variable.
	(xtensa_regno_to_class): Make it a local variable in the
	function xtensa_regno_to_class.
	(xtensa_function_epilogue, TARGET_ASM_FUNCTION_EPILOGUE): Remove
	macro, function prototype and implementation.
	(reg_nonleaf_alloc_order): Make it a local variable in the
	function order_regs_for_local_alloc.
	(xtensa_conditional_register_usage): New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define macro.
	(xtensa_valid_move): Allow direct moves to stack pointer
	register in call0 ABI.
	(xtensa_setup_frame_addresses): Only spill register windows in
	windowed ABI.
	(xtensa_emit_call): Emit call(x)8 or call(x)0 in windowed and
	call0 ABI respectively.
	(xtensa_function_arg_1): Only mark a7 register for copying in
	windowed ABI.
	(xtensa_call_save_reg): New function.
	(compute_frame_size): Add space for callee saved register
	storage to the frame size in call0 ABI.
	(xtensa_expand_prologue): Generate code to set up stack frame
	and save callee-saved registers in call0 ABI.
	(xtensa_expand_epilogue): New function.
	(xtensa_set_return_address): New function.
	(xtensa_return_addr): Calculate return address in call0 ABI.
	(xtensa_builtin_saveregs): Only mark a7 register for copying and
	emit copying code in windowed ABI.
	(order_regs_for_local_alloc): Add preferred register allocation
	order for non-leaf function in call0 ABI.
	(xtensa_static_chain): Add atatic chain passing for call0 ABI.
	(xtensa_asm_trampoline_template): Add trampoline generation for
	call0 ABI.
	(xtensa_trampoline_init): Add trampoline initialization for
	call0 ABI.
	(xtensa_conditional_register_usage, xtensa_regno_to_class): New
	functions.
	* config/xtensa/xtensa.h (TARGET_WINDOWED_ABI): New macro.
	(TARGET_CPU_CPP_BUILTINS): Add built-in define for call0 ABI.
	(CALL_USED_REGISTERS): Modify to encode both windowed and call0
	ABI call-used registers.
	(HARD_FRAME_POINTER_REGNUM): Add frame pointer for call0 ABI.
	(INCOMING_REGNO, OUTGOING_REGNO): Use argument unchanged in
	call0 ABI.
	(REG_CLASS_CONTENTS): Include all registers into the preferred
	reload registers set, adjust the set in the
	xtensa_conditional_register_usage.
	(xtensa_regno_to_class): Drop variable declaration.
	(REGNO_REG_CLASS): Redefine to use xtensa_regno_to_class
	function.
	(WINDOW_SIZE): Define as 8 or 0 for windowed and call0 ABI
	respectively.
	(FUNCTION_PROFILER): Add _mcount call for call0 ABI.
	(TRAMPOLINE_SIZE): Define trampoline size for call0 ABI.
	(RETURN_ADDR_IN_PREVIOUS_FRAME): Define to 0 in call0 ABI.
	(ASM_OUTPUT_POOL_PROLOGUE): Always generate literal pool
	location in call0 ABI.
	(EH_RETURN_STACKADJ_RTX): New definition, use a10 for passing
	stack adjustment size when handling exception.
	(CRT_CALL_STATIC_FUNCTION): Add definition for call0 ABI.
	* config/xtensa/xtensa.md (A9_REG, UNSPECV_BLOCKAGE): New
	definitions.
	("return" pattern): Generate ret.n/ret in call0 ABI.
	("epilogue" pattern): Expand epilogue.
	("nonlocal_goto" pattern): Use default in call0 ABI.
	("eh_return" pattern): Move implementation to eh_set_a0_windowed,
	emit eh_set_a0_* depending on ABI.
	("eh_set_a0_windowed" pattern): Former eh_return pattern.
	("eh_set_a0_call0", "blockage"): New patterns.

libgcc/
	* config/xtensa/lib2funcs.S (__xtensa_libgcc_window_spill,
	__xtensa_nonlocal_goto): Don't compile for call0 ABI.
	(__xtensa_sync_caches): Only use entry and retw in windowed ABI,
	use ret in call0 ABI.
	* config/xtensa/t-windowed: New file.
	* libgcc/config/xtensa/t-xtensa (LIB2ADDEH): Move to t-windowed.
	* libgcc/configure: Regenerated.
	* libgcc/configure.ac: Check if xtensa target is configured for
	windowed ABI and thus needs to use custom unwind code.

From-SVN: r221158

        PR target/65038
        * config.in: Regenerated.
        * configure: Likewise.
        * configure.ac (AC_HEADER_STDC): Added explicit.
        (AC_CHECK_HEADERS): Check for default headers  plus
        for ftw.h header.
        * libgcov-util.c (gcov_read_profile_dir): Disable use
        of ftw-function, if header is not found.
        (ftw_read_file): Likewise.

From-SVN: r221059

From-SVN: r221058

	PR target/65038
	* config.in: Regenerated.
	* configure: Likewise.
	* configure.ac (AC_HEADER_STDC): Add explicit.
	(AC_CHECK_HEADERS): Check for default headers
	plus for ftw.h one.
	* libgcov-util.c (gcov_read_profile_dir): Disable use
	of ftw-function, if header not found.
	(ftw_read_file): Don't translate if ftw header isn't
	present.

From-SVN: r221055

2014-12-09  Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com>

        (libgcc_s) Optional filename-based shared library versioning on AIX.
        * gcc/doc/install.texi: Describe --with-aix-soname option.
        * Makefile.in (with_aix_soname): Define.
        * config/rs6000/t-slibgcc-aix: Act upon --with-aix-soname option.
        * configure.ac: Accept --with-aix-soname=aix|svr4|both option.
        * configure: Recreate.

From-SVN: r218539

	* configure: Regenerate.
	* configure.ac (--enable-as-accelerator-for)
	(--enable-offload-targets): New configure options.
gcc/
	* Makefile.in (real_target_noncanonical, accel_dir_suffix)
	(enable_as_accelerator): New variables substituted by configure.
	(libsubdir, libexecsubdir, unlibsubdir): Tweak for the possibility of
	being configured as an offload compiler.
	(DRIVER_DEFINES): Pass new defines DEFAULT_REAL_TARGET_MACHINE and
	ACCEL_DIR_SUFFIX.
	(install-cpp, install-common, install_driver, install-gcc-ar): Do not
	install for the offload compiler.
	* config.in: Regenerate.
	* configure: Regenerate.
	* configure.ac (real_target_noncanonical, accel_dir_suffix)
	(enable_as_accelerator): Compute new variables.
	(ACCEL_COMPILER): Define if the compiler is built as the accel compiler.
	(OFFLOAD_TARGETS): List of target names suitable for offloading.
	(ENABLE_OFFLOADING): Define if list of offload targets is not empty.
gcc/cp/
	* Make-lang.in (c++.install-common): Do not install for the offload
	compiler.
gcc/doc/
	* install.texi (Options specification): Document
	--enable-as-accelerator-for and --enable-offload-targets.
gcc/fortran/
	* Make-lang.in (fortran.install-common): Do not install for the offload
	compiler.
libgcc/
	* Makefile.in (crtoffloadbegin$(objext)): New rule.
	(crtoffloadend$(objext)): Likewise.
	* configure: Regenerate.
	* configure.ac (accel_dir_suffix): Compute new variable.
	(extra_parts): Add crtoffloadbegin.o and crtoffloadend.o
	if enable_offload_targets is not empty.
	* offloadstuff.c: New file.
libgomp/
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Check for libdl, required for plugin support.
	(PLUGIN_SUPPORT): Define if plugins are supported.
	(enable_offload_targets): Support Intel MIC targets.
	(OFFLOAD_TARGETS): List of target names suitable for offloading.
lto-plugin/
	* Makefile.am (libexecsubdir): Tweak for the possibility of being
	configured for offload compiler.
	(accel_dir_suffix, real_target_noncanonical): New variables substituted
	by configure.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* configure.ac (accel_dir_suffix, real_target_noncanonical): Compute new
	variables.


Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>

From-SVN: r217485

Continuing preparations for implementing
TARGET_ATOMIC_ASSIGN_EXPAND_FENV for powerpc*-*-linux* soft-float and
e500, this patch makes soft-fp symbols used for those targets into
compat symbols when building with glibc >= 2.19, so that they are only
in shared libgcc for existing binaries requiring them, not in static
libgcc and not available for new links using shared libgcc.  Instead,
new links will get the symbols from libc, which has exported all of
them since 2.19.  (Actually all the symbols were exported from glibc
since 2.4, but some of them were exported by glibc as compat symbols
only - because of a confusion between deliberately present soft-fp
symbols and old accidental reexports of libgcc functions from glibc
2.0 - until 2.19.)

This allows user floating-point arithmetic to interoperate properly
with the state handled by <fenv.h> functions, whether software state
(for soft-float; TLS variables that don't form a public part of
glibc's ABI, so can only be accessed directly by functions within
glibc) or hardware state (for e500 - the copies of the soft-fp
functions in glibc being built to interoperate with the hardware state
whereas those in libgcc aren't).  Previously only glibc's own
functions, and those operations done in hardware on e500, properly
worked with that state, not direct floating-point arithmetic
operations that were implemented in software.

The intended next step is the actual TARGET_ATOMIC_ASSIGN_EXPAND_FENV
implementation.

The test of glibc >= 2.19 uses the same --with-glibc-version configure
option as in the gcc/ directory (but differently implemented; in gcc/
the fallback is to examine headers to find the version, while in
libgcc/ we can use compile for the target and so use AC_COMPUTE_INT).
The TARGET_ATOMIC_ASSIGN_EXPAND_FENV implementation will also only do
anything for glibc >= 2.19, as it will depend on generating calls to
functions __atomic_feholdexcept __atomic_feclearexcept
__atomic_feupdateenv that were added in 2.19 for that purpose (even
for e500, inline code is not readily possible because of the need to
make prctl syscalls from the implementation of these functions).

In order to make symbols compat symbols, the soft-fp files need
wrapping with generated wrappers including asm .symver directives,
which need to name the symbol version in question.  This is extracted
by an awk script from an intermediate stage of generating the .map
file for linking libgcc (that .map itself depends on the objects that
go into the library, so can't be used for this purpose as that would
mean a circular dependency); the extraction is not fully general
regarding the features available in .map generation, but suffices for
the present purpose.

It would make sense for hardfp.c symbols to be compat symbols as well
(in the cases where hardfp.c gets used, the functions in question
should not be used for new links), but this isn't required for the
present purpose, which is only concerned with ensuring that where
functions that should be affected by rounding modes or exceptions get
used, those functions are actually affected by those rounding modes or
exceptions.

Tested with no regressions with cross to powerpc-linux-gnu
(soft-float); c11-atomic-exec-5.c moves from UNSUPPORTED to FAIL, as
expected, now that floating-point arithmetic in user programs uses the
same state as <fenv.h> functions, so the fenv_exceptions test passes,
but TARGET_ATOMIC_ASSIGN_EXPAND_FENV isn't yet implemented.  (For
e500, c11-atomic-exec-5.c was already FAILing, as enough operations
worked with the hardware state for the fenv_exceptions effective
target test to pass.)  Also verified that the exported symbols and
versions are unchanged, with the expected symbols becoming compat
symbols at the same versions, and that with --with-glibc-version=2.18
the symbols remain normal rather than compat symbols.

	* Makefile.in (libgcc.map.in): New target.
	(libgcc.map): Use libgcc.map.in.
	* config/t-softfp (softfp_compat): New variable to be set by
	users.
	[$(softfp_compat) = y] (softfp_map_dep, softfp_set_symver): New
	variables.
	[$(softfp_compat) = y] (softfp_file_list): Use files in the build
	directory.
	[$(softfp_compat) = y] ($(softfp_file_list)): Generate wrappers
	that use compat symbols and disable all code unless [SHARED].
	* config/t-softfp-compat: New file.
	* find-symver.awk: New file.
	* configure.ac (--with-glibc-version): New configure option.
	(ppc_fp_compat): New variable set for powerpc*-*-linux*.
	* configure: Regenerate.
	* config.host (powerpc*-*-linux*): Use ${ppc_fp_compat} for
	soft-float and e500.

From-SVN: r216942