Commit Graph

433 Commits

Author SHA1 Message Date
GCC Administrator
34fac9ef72 Daily bump. 2021-09-20 00:16:21 +00:00
Andrew Pinski
68aace4458 Fix PR bootstrap/102389: --with-build-config=bootstrap-lto is broken
So the problem here is that now the lto-plugin requires NM that works
with LTO to work so we need to pass down NM just like we do for ranlib
and ar.

OK? Bootstrapped and tested with --with-build-config=bootstrap-lto on aarch64-linux-gnu.
Note you need to use binutils 2.35 or later too due to ttps://sourceware.org/PR25355
(I will submit another patch to improve the installation instructions too).

config/ChangeLog:

	PR bootstrap/102389
	* bootstrap-lto-lean.mk: Handle NM like RANLIB AND AR.
	* bootstrap-lto.mk: Likewise.
2021-09-19 17:29:36 +00:00
GCC Administrator
6e529985d8 Daily bump. 2021-08-19 00:16:42 +00:00
Iain Sandoe
d39367fa82 configure: Allow host fragments to react to --enable-host-shared.
This makes the host_shared value available to host makefile
fragments.

It uses this to adjust Darwin's mdynamic-no-pic in the case that
shared host resources are required.

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

ChangeLog:

	* Makefile.in: Regenerate.
	* Makefile.tpl: Make the state of the configured host
	shared flag available to makefile fragements.

config/ChangeLog:

	* mh-darwin: Require a non-shared host configuration to
	enable  mdynamic-no-pic where that is supported.
2021-08-18 19:46:32 +01:00
GCC Administrator
ef2ace642a Daily bump. 2021-07-10 00:16:53 +00:00
Iain Sandoe
54258e22b0 Darwin, config: Revise host config fragment.
There were two uses for the Darwin host config fragment:

The first is to arrange for targets that support mdynamic-no-pic
to be built with that enabled (since it makes a significant
difference to the compiler performance).  We can be more specific
in the application of this, since it only applies to 32b hosts
plus powerpc64-darwin9.

The second was to work around a tool bug where -fno-PIE was not
propagated to the link stage.  This second use is redundant,
since the buggy toolchain cannot bootstrap current GCC sources
anyway.

This makes the host fragment more specific and reduces the number
of toolchains for which it is included which reduces clutter in
configure lines.

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

config/ChangeLog:

	* mh-darwin: Make this specific to handling the
	mdynamic-no-pic case.

ChangeLog:

	* configure: Regenerate.
	* configure.ac: Adjust cases for which it is necessary to
	include the Darwin host config fragment.
2021-07-09 17:35:57 +01:00
GCC Administrator
8dc48181af Daily bump. 2021-06-15 00:16:37 +00:00
Michael Forney
3a01d8eec2 [PATCH] config: Backport "Rely less on internal symbols" (serial 69) to gettext.m4
config

	* gettext.m4 (AM_GNU_GETTEXT): Skip checks for the internal
	symbols _nl_msg_cat_cntr, _nl_domain_bindings, and
	_nl_expand_alias, if __GNU_GETTEXT_SUPPORTED_REVISION is defined.
	Backport of gettext serial 68 patch.
2021-06-13 22:26:03 -04:00
GCC Administrator
a8daf9a19a Daily bump. 2021-05-19 00:16:45 +00:00
Mike Frysinger
7d3711a5a5 config: delete unused sim macros
Nothing in gcc or binutils or gdb or anything anywhere uses these.

config/

	* acinclude.m4 (CYG_AC_PATH_SIM, CYG_AC_PATH_DEVO): Delete.
2021-05-18 11:07:27 -04:00
GCC Administrator
e690396da7 Daily bump. 2021-05-04 00:16:53 +00:00
H.J. Lu
fd7eb4bc94 GCC_CET_HOST_FLAGS: Check if host supports multi-byte NOPs
Sync with binutils for PR binutils/27397.  Check if host supports
multi-byte NOPs before enabling CET on host.

config/

	PR bootstrap/99703
	* cet.m4 (GCC_CET_HOST_FLAGS): Check if host supports multi-byte
	NOPs.

libiberty/

	PR bootstrap/99703
	* configure: Regenerated.
2021-05-03 05:00:05 -07:00
GCC Administrator
6d0d35d518 Daily bump. 2021-04-14 00:16:24 +00:00
Martin Storsjö
89e95ad2e7 mh-mingw: Set __USE_MINGW_ACCESS in missed C++ flags variables
This is similar to what was done in
eea4e2ff0a (where it was added to
STAGE*_CXXFLAGS), but this adds the flag to the CXXFLAGS and
BOOT_CXXFLAGS variables too (as it's already added to CFLAGS and
BOOT_CFLAGS).

2021-04-09  Martin Storsjö  <martin@martin.st>

config/ChangeLog:
	* mh-mingw: Set __USE_MINGW_ACCESS in missed C++ flags
	variables
2021-04-13 09:19:34 +00:00
GCC Administrator
651b8a50a6 Daily bump. 2021-01-06 00:16:55 +00:00
Rainer Orth
a20893cf6b build: libcody: Link with -lsocket -lnsl if necessary [PR98316]
With the introduction of C++20 modules and libcody, cc1plus and
cc1objplus gained a dependency on the socket functions.  Before those
were merged into libc in Solaris 11.4, one needed to link with -lsocket -lnsl
on Solaris, so that merge broke the Solaris 11.3 build.

While we already have 4 different checks for those libraries in the
tree, I decided to import autoconf-archive's AX_LIB_SOCKET_NSL macro
instead.  At the same time, the patch only links libcody and the
networking libs where needed (cc1plus, cc1objplus).

Bootstrapped without regressions on i386-pc-solaris2.11 (Solaris 11.3
and 11.4), sparc-sun-solaris2.11, and x86_64-pc-linux-gnu.

2020-12-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	c++tools:
	PR c++/98316
	* configure.ac: Include ../config/ax_lib_socket_nsl.m4.
	(NETLIBS): Determine using AX_LIB_SOCKET_NSL.
	* configure: Regenerate.
	* Makefile.in (NETLIBS): Define.
	(g++-mapper-server$(exeext)): Add $(NETLIBS).

	gcc/objcp:
	PR c++/98316
	* Make-lang.in (cc1objplus$(exeext)): Add $(CODYLIB), $(NETLIBS).

	gcc/cp:
	PR c++/98316
	* Make-lang.in (cc1plus$(exeext)): Add $(CODYLIB), $(NETLIBS).

	gcc:
	PR c++/98316
	* configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
	* aclocal.m4, configure: Regenerate.
	* Makefile.in (NETLIBS): Define.
	(BACKEND): Remove $(CODYLIB).

	config:
	PR c++/98316
	* ax_lib_socket_nsl.m4: Import from autoconf-archive.
2021-01-05 11:32:31 +01:00
GCC Administrator
2e96eec614 Daily bump. 2021-01-04 00:16:18 +00:00
Mike Frysinger
3335c9f954 config: import pkg.m4 from pkg-config
We use this in the sim tree currently.  Rather than require people to
have pkg-config installed, include it in the config/ dir.

config/ChangeLog:

	* pkg.m4: New file from pkg-config-0.29.2.
2021-01-02 21:53:56 -05:00
GCC Administrator
360258daf5 Daily bump. 2020-11-26 00:16:41 +00:00
Matthew Malcomson
0854b584bd libsanitizer: mid-end: Introduce stack variable handling for HWASAN
Handling stack variables has three features.

1) Ensure HWASAN required alignment for stack variables

When tagging shadow memory, we need to ensure that each tag granule is
only used by one variable at a time.

This is done by ensuring that each tagged variable is aligned to the tag
granule representation size and also ensure that the end of each
object is aligned to ensure the start of any other data stored on the
stack is in a different granule.

This patch ensures the above by forcing the stack pointer to be aligned
before and after allocating any stack objects. Since we are forcing
alignment we also use `align_local_variable` to ensure this new alignment
is advertised properly through SET_DECL_ALIGN.

2) Put tags into each stack variable pointer

Make sure that every pointer to a stack variable includes a tag of some
sort on it.

The way tagging works is:
  1) For every new stack frame, a random tag is generated.
  2) A base register is formed from the stack pointer value and this
     random tag.
  3) References to stack variables are now formed with RTL describing an
     offset from this base in both tag and value.

The random tag generation is handled by a backend hook.  This hook
decides whether to introduce a random tag or use the stack background
based on the parameter hwasan-random-frame-tag.  Using the stack
background is necessary for testing and bootstrap.  It is necessary
during bootstrap to avoid breaking the `configure` test program for
determining stack direction.

Using the stack background means that every stack frame has the initial
tag of zero and variables are tagged with incrementing tags from 1,
which also makes debugging a bit easier.

Backend hooks define the size of a tag, the layout of the HWASAN shadow
memory, and handle emitting the code that inserts and extracts tags from a
pointer.

3) For each stack variable, tag and untag the shadow stack on function
   prologue and epilogue.

On entry to each function we tag the relevant shadow stack region for
each stack variable. This stack region is tagged to match the tag added to
each pointer to that variable.

This is the first patch where we use the HWASAN shadow space, so we need
to add in the libhwasan initialisation code that creates this shadow
memory region into the binary we produce.  This instrumentation is done
in `compile_file`.

When exiting a function we need to ensure the shadow stack for this
function has no remaining tags.  Without clearing the shadow stack area
for this stack frame, later function calls could get false positives
when those later function calls check untagged areas (such as parameters
passed on the stack) against a shadow stack area with left-over tag.

Hence we ensure that the entire stack frame is cleared on function exit.

config/ChangeLog:

	* bootstrap-hwasan.mk: Disable random frame tags for stack-tagging
	during bootstrap.

gcc/ChangeLog:

	* asan.c (struct hwasan_stack_var): New.
	(hwasan_sanitize_p): New.
	(hwasan_sanitize_stack_p): New.
	(hwasan_sanitize_allocas_p): New.
	(initialize_sanitizer_builtins): Define new builtins.
	(ATTR_NOTHROW_LIST): New macro.
	(hwasan_current_frame_tag): New.
	(hwasan_frame_base): New.
	(stack_vars_base_reg_p): New.
	(hwasan_maybe_init_frame_base_init): New.
	(hwasan_record_stack_var): New.
	(hwasan_get_frame_extent): New.
	(hwasan_increment_frame_tag): New.
	(hwasan_record_frame_init): New.
	(hwasan_emit_prologue): New.
	(hwasan_emit_untag_frame): New.
	(hwasan_finish_file): New.
	(hwasan_truncate_to_tag_size): New.
	* asan.h (hwasan_record_frame_init): New declaration.
	(hwasan_record_stack_var): New declaration.
	(hwasan_emit_prologue): New declaration.
	(hwasan_emit_untag_frame): New declaration.
	(hwasan_get_frame_extent): New declaration.
	(hwasan_maybe_enit_frame_base_init): New declaration.
	(hwasan_frame_base): New declaration.
	(stack_vars_base_reg_p): New declaration.
	(hwasan_current_frame_tag): New declaration.
	(hwasan_increment_frame_tag): New declaration.
	(hwasan_truncate_to_tag_size): New declaration.
	(hwasan_finish_file): New declaration.
	(hwasan_sanitize_p): New declaration.
	(hwasan_sanitize_stack_p): New declaration.
	(hwasan_sanitize_allocas_p): New declaration.
	(HWASAN_TAG_SIZE): New macro.
	(HWASAN_TAG_GRANULE_SIZE): New macro.
	(HWASAN_STACK_BACKGROUND): New macro.
	* builtin-types.def (BT_FN_VOID_PTR_UINT8_PTRMODE): New.
	* builtins.def (DEF_SANITIZER_BUILTIN): Enable for HWASAN.
	* cfgexpand.c (align_local_variable): When using hwasan ensure
	alignment to tag granule.
	(align_frame_offset): New.
	(expand_one_stack_var_at): For hwasan use tag offset.
	(expand_stack_vars): Record stack objects for hwasan.
	(expand_one_stack_var_1): Record stack objects for hwasan.
	(init_vars_expansion): Initialise hwasan state.
	(expand_used_vars): Emit hwasan prologue and generate hwasan epilogue.
	(pass_expand::execute): Emit hwasan base initialization if needed.
	* doc/tm.texi (TARGET_MEMTAG_TAG_SIZE,TARGET_MEMTAG_GRANULE_SIZE,
	TARGET_MEMTAG_INSERT_RANDOM_TAG,TARGET_MEMTAG_ADD_TAG,
	TARGET_MEMTAG_SET_TAG,TARGET_MEMTAG_EXTRACT_TAG,
	TARGET_MEMTAG_UNTAGGED_POINTER): Document new hooks.
	* doc/tm.texi.in (TARGET_MEMTAG_TAG_SIZE,TARGET_MEMTAG_GRANULE_SIZE,
	TARGET_MEMTAG_INSERT_RANDOM_TAG,TARGET_MEMTAG_ADD_TAG,
	TARGET_MEMTAG_SET_TAG,TARGET_MEMTAG_EXTRACT_TAG,
	TARGET_MEMTAG_UNTAGGED_POINTER): Document new hooks.
	* explow.c (get_dynamic_stack_base): Take new `base` argument.
	* explow.h (get_dynamic_stack_base): Take new `base` argument.
	* sanitizer.def (BUILT_IN_HWASAN_INIT): New.
	(BUILT_IN_HWASAN_TAG_MEM): New.
	* target.def (target_memtag_tag_size,target_memtag_granule_size,
	target_memtag_insert_random_tag,target_memtag_add_tag,
	target_memtag_set_tag,target_memtag_extract_tag,
	target_memtag_untagged_pointer): New hooks.
	* targhooks.c (HWASAN_SHIFT): New.
	(HWASAN_SHIFT_RTX): New.
	(default_memtag_tag_size): New default hook.
	(default_memtag_granule_size): New default hook.
	(default_memtag_insert_random_tag): New default hook.
	(default_memtag_add_tag): New default hook.
	(default_memtag_set_tag): New default hook.
	(default_memtag_extract_tag): New default hook.
	(default_memtag_untagged_pointer): New default hook.
	* targhooks.h (default_memtag_tag_size): New default hook.
	(default_memtag_granule_size): New default hook.
	(default_memtag_insert_random_tag): New default hook.
	(default_memtag_add_tag): New default hook.
	(default_memtag_set_tag): New default hook.
	(default_memtag_extract_tag): New default hook.
	(default_memtag_untagged_pointer): New default hook.
	* toplev.c (compile_file): Call hwasan_finish_file when finished.
2020-11-25 16:38:06 +00:00
Matthew Malcomson
170e618ef5 libsanitizer: Add option to bootstrap using HWASAN
This is an analogous option to --bootstrap-asan to configure.  It allows
bootstrapping GCC using HWASAN.

For the same reasons as for ASAN we have to avoid using the HWASAN
sanitizer when compiling libiberty and the lto-plugin.

Also add a function to query whether -fsanitize=hwaddress has been
passed.

ChangeLog:

	* configure: Regenerate.
	* configure.ac: Add --bootstrap-hwasan option.

config/ChangeLog:

	* bootstrap-hwasan.mk: New file.

gcc/ChangeLog:

	* doc/install.texi: Document new option.

libiberty/ChangeLog:

	* configure: Regenerate.
	* configure.ac: Avoid using sanitizer.

lto-plugin/ChangeLog:

	* Makefile.am: Avoid using sanitizer.
	* Makefile.in: Regenerate.
2020-11-25 16:35:37 +00:00
Rainer Orth
484af18ee1 Fixup config/ChangeLog. 2020-09-10 10:17:51 +02:00
GCC Administrator
80f86e78ac Daily bump. 2020-09-10 00:16:28 +00:00
Rainer Orth
0d7d52131a config: Sync largefile.m4 from binutils-gdb
The following patch improves handling of largefile support with procfs
on 32-bit Solaris.  It has already been approved and installed for
binutils-gdb in the thread starting at

	[PATCH] Unify Solaris procfs and largefile handling
        https://sourceware.org/pipermail/gdb-patches/2020-June/169977.html

I'm syncing the config/largefile.m4 part to gcc now which is the master
for config.  Since ACX_LARGEFILE isn't used anywhere in the gcc tree,
I'm installing it as obvious.

2020-09-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	config:
	* largefile.m4: Sync from binutils-gdb.
2020-09-09 11:02:01 +02:00
GCC Administrator
5b9a3d2a05 Daily bump. 2020-08-21 00:16:23 +00:00
Tobias Burnus
7ffcf5d611 configure: Also check C++11 (flags) for ${build} compiler not only for ${host}
config/ChangeLog:

	PR bootstrap/96612
	* ax_cxx_compile_stdcxx.m4: Add fourth argument to check also
	the CXX_FOR_BUILD compiler.

ChangeLog:

	PR bootstrap/96612
	* configure.ac: Run AX_CXX_COMPILE_STDCXX also for ${build} compiler,
	if not the same as ${host}.
	* configure: Regenerate.
2020-08-20 21:59:00 +02:00
GCC Administrator
d48cca8f21 Daily bump. 2020-07-31 00:16:26 +00:00
H.J. Lu
4712bde3ca Require CET support only for the final GCC build
With --enable-cet, require CET support only for the final GCC build.
Don't enable CET without CET support for non-bootstrap build, in stage1
nor for build support.

config/

	PR bootstrap/96202
	* cet.m4 (GCC_CET_HOST_FLAGS): Don't enable CET without CET
	support in stage1 nor for build support.

gcc/

	PR bootstrap/96202
	* configure: Regenerated.

libbacktrace/

	PR bootstrap/96202
	* configure: Regenerated.

libcc1/

	PR bootstrap/96202
	* configure: Regenerated.

libcpp/

	PR bootstrap/96202
	* configure: Regenerated.

libdecnumber/

	PR bootstrap/96202
	* configure: Regenerated.

libiberty/

	PR bootstrap/96202
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/96202
	* configure: Regenerated.
2020-07-30 05:36:24 -07:00
GCC Administrator
885ef72f27 Daily bump. 2020-05-30 00:16:27 +00:00
H.J. Lu
9051b54827 Avoid nested save_CFLAGS and save_LDFLAGS
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.
2020-05-29 12:56:40 -07:00
Jason Merrill
5329b59a2e bootstrap: Update requirement to C++11.
There was general agreement last November that we would move to allowing
C++11 features to be used in GCC 11; this patch implements that direction.

ChangeLog
2020-05-18  Jason Merrill  <jason@redhat.com>

	* configure.ac: Update bootstrap dialect to -std=c++11.

config/ChangeLog
2020-05-18  Jason Merrill  <jason@redhat.com>

	* ax_cxx_compile_stdcxx.m4: Import from autoconf archive with
	an adjustment to try the default mode.

gcc/ChangeLog
2020-05-18  Jason Merrill  <jason@redhat.com>

	* aclocal.m4: Add ax_cxx_compile_stdcxx.m4.
	* configure.ac: Use AX_CXX_COMPILE_STDCXX(11).
2020-05-18 14:29:18 -04:00
H.J. Lu
4c1a5d8b71 x86: Also check if -fcf-protection works
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.
2020-05-15 09:07:17 -07:00
H.J. Lu
8d286dd118 x86: Default CET run-time support to auto
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.
2020-05-14 09:05:02 -07:00
H.J. Lu
d17cdc17c9 Enable CET in cross compiler if possible
Don't perform CET run-time check for host when cross compiling.  Instead,
enable CET in cross compiler if possible so that it will run on both CET
and non-CET hosts.

config/

	PR bootstrap/94998
	* cet.m4 (GCC_CET_HOST_FLAGS): Enable CET in cross compiler if
	possible.

libiberty/

	PR bootstrap/94998
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/94998
	* configure: Regenerated.
2020-05-12 10:39:54 -07:00
H.J. Lu
eedc73a224 Check whether -fcf-protection=none -Wl,-z,ibt,-z,shstk work first
GCC_CET_HOST_FLAGS uses -Wl,-z,ibt,-z,shstk to check if Linux/x86 host
has Intel CET enabled by introducing an Intel CET violation on purpose.
To avoid false positive, check whether -Wl,-z,ibt,-z,shstk works first.
-fcf-protection=none is added to avoid false negative when -fcf-protection
is enabled by default.

config/

	PR bootstrap/94739
	* cet.m4 (GCC_CET_HOST_FLAGS): Add -fcf-protection=none to
	-Wl,-z,ibt,-z,shstk.  Check whether -fcf-protection=none
	-Wl,-z,ibt,-z,shstk works first.

libiberty/

	PR bootstrap/94739
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/94739
	* configure: Regenerated.
2020-04-28 05:42:50 -07:00
H.J. Lu
8fc8bf801e Enable Intel CET in liblto_plugin.so on Intel CET enabled host
Since ld is Intel CET enabled on Intel CET enabled host, dlopen fails on
liblto_plugin.so if it isn't Intel CET enabled.  Add GCC_CET_HOST_FLAGS
to cet.m4, use it in libiberty and lto-plugin to always enable Intel
CET in liblto_plugin.so on Intel CET enabled host.

On Linux/x86 host, enable Intel CET by default if assembler and compiler
support Intel CET so that the generated liblto_plugin.so can be used on
both CET and non-CET machines.  It is an error to disable Intel CET in
liblto_plugin.so on Intel CET enabled host.

config/

	PR bootstrap/94739
	* cet.m4 (GCC_CET_HOST_FLAGS): New.

libiberty/

	PR bootstrap/94739
	* Makefile.in (COMPILE.c): Add @CET_HOST_FLAGS@.
	(configure_deps): Add $(srcdir)/../config/cet.m4 and
	$(srcdir)/../config/enable.m4.
	* aclocal.m4: Include ../config/cet.m4 and ../config/enable.m4.
	* configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
	AC_SUBST(CET_HOST_FLAGS).
	* configure: Regenerated.

lto-plugin/

	PR bootstrap/94739
	* Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
	* configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
	AC_SUBST(CET_HOST_FLAGS).
	* Makefile.in: Regenerated.
	* aclocal.m4: Likewise.
	* configure: Likewise.
2020-04-25 10:07:16 -07:00
Jakub Jelinek
1868599f8d libgfortran: Provide some further math library fallbacks [PR94694]
The following patch provides some further math library fallbacks.
fmaf can be implemented using fma if available, fma and fmal can use
x * y + z as fallback, it is not perfect, but e.g. glibc on various arches
has been using that as fallback for many years,
and copysign/copysignl/fabs/fabsl can be implemented using corresponding
__builtin_* if we make sure that gcc expands it inline instead of using
a library call (these days it is expanded inline on most targets).

2020-04-22  Jakub Jelinek  <jakub@redhat.com>

	PR libfortran/94694
	PR libfortran/94586
	* configure.ac: Add math func checks for fmaf, fma and fmal.  Add
	HAVE_INLINE_BUILTIN_COPYSIGN check.
	* c99_protos.h (copysign, fmaf, fma, fmal): Provide fallback
	prototypes.
	(HAVE_COPYSIGN, HAVE_FMAF, HAVE_FMA, HAVE_FMAL): Define if not
	defined and fallback version is provided.
	* intrinsics/c99_functions.c (copysign, fmaf, fma, fmal): Provide
	fallback implementations if possible
	* configure: Regenerated.
	* config.h.in: Regenerated.

	* math.m4 (GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1,
	GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2): New.
2020-04-22 21:34:19 +02:00
Sandra Loosemore
02ce382cd3 Use a non-empty test program to test ability to link.
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.
2020-02-12 13:22:07 -08:00
Andrew Burgess
20fa702b32 Fixes after recent configure changes relating to static libraries
This commit:

  commit e7c26e04b2 (tjteru/master)
  Date:   Wed Jan 22 14:54:26 2020 +0000

      gcc: Add new configure options to allow static libraries to be selected

contains a couple of issues.  First I failed to correctly regenerate
all of the configure files it should have done.  Second, there was a
mistake in lib-link.m4, one of the conditions didn't use pure sh
syntax, I wrote this:

  if x$lib_type = xauto || x$lib_type = xshared; then

When I should have written this:

  if test "x$lib_type" = "xauto" || test "x$lib_type" = "xshared"; then

These issues were raised on the mailing list in these messages:

  https://gcc.gnu.org/ml/gcc-patches/2020-01/msg01827.html
  https://gcc.gnu.org/ml/gcc-patches/2020-01/msg01921.html

config/ChangeLog:

	* lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Update shell syntax.

gcc/ChangeLog:

	* configure: Regenerate.

intl/ChangeLog:

	* configure: Regenerate.

libcpp/ChangeLog:

	* configure: Regenerate.

libstdc++-v3/ChangeLog:

	* configure: Regenerate.
2020-02-01 00:34:28 +00:00
Andrew Burgess
e7c26e04b2 gcc: Add new configure options to allow static libraries to be selected
The motivation behind this change is to make it easier for a user to
link against static libraries on a target where dynamic libraries are
the default library type (for example GNU/Linux).

Further, my motivation is really for linking libraries into GDB,
however, the binutils-gdb/config/ directory is a copy of gcc/config/
so changes for GDB need to be approved by the GCC project first.

After making this change in the gcc/config/ directory I've run
autoreconf on all of the configure scripts in the GCC tree and a
couple have been updated, so I'll use one of these to describe what my
change does.

Consider libcpp, this library links against libiconv.  Currently if
the user builds on a system with both static and dynamic libiconv
installed then autotools will pick up the dynamic libiconv by
default.  This is almost certainly the right thing to do.

However, if the user wants to link against static libiconv then things
are a little harder, they could remove the dynamic libiconv from their
system, but this is probably a bad idea (other things might depend on
that library), or the user can build their own version of libiconv,
install it into a unique prefix, and then configure gcc using the
--with-libiconv-prefix=DIR flag.  This works fine, but is somewhat
annoying, the static library available, I just can't get autotools to
use it.

My change then adds a new flag --with-libiconv-type=TYPE, where type
is either auto, static, or shared.  The default auto, ensures we keep
the existing behaviour unchanged.

If the user configures with --with-libiconv-type=static then the
configure script will ignore any dynamic libiconv it finds, and will
only look for a static libiconv, if no static libiconv is found then
the configure will continue as though there is no libiconv at all
available.

Similarly a user can specify --with-libiconv-type=shared and force the
use of shared libiconv, any static libiconv will be ignored.

As I've implemented this change within the AC_LIB_LINKFLAGS_BODY macro
then only libraries configured using the AC_LIB_LINKFLAGS or
AC_LIB_HAVE_LINKFLAGS macros will gain the new configure flag.

If this is accepted into GCC then there will be follow on patches for
binutils and GDB to regenerate some configure scripts in those
projects.

For GCC only two configure scripts needed updated after this commit,
libcpp and libstdc++-v3, both of which link against libiconv.

config/ChangeLog:

	* lib-link.m4 (AC_LIB_LINKFLAGS_BODY): Add new
	--with-libXXX-type=... option.  Use this to guide the selection of
	either a shared library or a static library.

libcpp/ChangeLog:

	* configure: Regenerate.

libstdc++-v3/ChangeLog:

	* configure: Regenerate.
2020-01-27 22:02:35 +00:00
Maciej W. Rozycki
e8e66971cd Add `--with-toolexeclibdir=' configuration option
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.
2020-01-24 11:24:25 +00:00
Christophe Lyon
b1e21e5a5d [ARM/FDPIC v6 02/24] [ARM] FDPIC: Handle arm*-*-uclinuxfdpiceabi in configure scripts
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
2019-09-10 09:37:00 +02:00
Florian Weimer
3c086f8dec Fix GCC_LINUX_FUTEX to work with C99 compilers
Without this change, libstdc++ is built without futex symbols if GCC
rejects implicit function declarations by default.

From-SVN: r275454
2019-09-06 12:27:36 +02:00
Richard Sandiford
8849d5034c Add a build config for bootstrapping at -Og
Although BOOT_CFLAGS can be used to bootstrap with -Og, having a
dedicated build config is sometimes more convenient.

2019-07-08  Richard Sandiford  <richard.sandiford@arm.com>

config/
	* bootstrap-Og.mk: New file.

gcc/
	* doc/install.texi (bootstrap-Og): Document.

From-SVN: r273193
2019-07-08 06:21:11 +00:00
Kwok Cheung Yeung
76d4633107 Create GCN-specific gthreads
2019-06-25  Kwok Cheung Yeung  <kcy@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>

        gcc/
	* config.gcc (thread_file): Set to gcn for AMD GCN.
	* config/gcn/gcn.c (gcn_emutls_var_init): New function.
	(TARGET_EMUTLS_VAR_INIT): New hook.

	config/
	* gthr.m4 (GCC_AC_THREAD_HEADER): Add case for gcn.

	libgcc/
	* configure: Regenerate.
	* config/gcn/gthr-gcn.h: New.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>

From-SVN: r272647
2019-06-25 11:41:29 +00:00
Rainer Orth
a7155c2e0b Generalize getconf _NPROCESSORS_ONLN
libgomp:
	* configure.ac: Call AX_COUNT_CPUS.
	Substitute CPU_COUNT.
	* testsuite/Makefile.am (check-am): Use CPU_COUNT as processor
	count fallback.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.
	* Makefile.in, testsuite/Makefile.in: Regenerate.

	config:
	* ax_count_cpus.m4: New file.

From-SVN: r271769
2019-05-30 09:06:48 +00:00
Richard Biener
5fe6af6dcf re PR lto/85574 (LTO bootstapped binaries differ)
2019-05-02  Richard Biener  <rguenther@suse.de>

	PR bootstrap/85574
	* Makefile.tpl (compare target): Also compare extra-compare
	files.
	* Makefile.in: Regenerate.

	config/
	* bootstrap-lto.mk (extra-compare): Set to gcc/lto1$(exeext).

From-SVN: r270798
2019-05-02 13:58:47 +00:00
Martin Liska
ee06f6463a Filter out LTO in config/bootstrap-lto-lean.mk.
2019-04-16  Martin Liska  <mliska@suse.cz>

	* bootstrap-lto-lean.mk: Filter out -flto in STAGEtrain_CFLAGS.

From-SVN: r270393
2019-04-16 15:24:53 +00:00
Martin Liska
1c67e69c0d Come up with bootstrap-lto-lean config.
2019-04-09  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Regenerate.
	* Makefile.tpl: Pass GENERATOR_CFLAGS
	in all stages.
2019-04-09  Martin Liska  <mliska@suse.cz>

	* bootstrap-lto-lean.mk: New file.
2019-04-09  Martin Liska  <mliska@suse.cz>

	* Makefile.in: Use GENERATOR_CFLAGS for all generators.
	* doc/install.texi: Document the new config.

From-SVN: r270223
2019-04-09 08:49:14 +00:00
Johannes Pfau
eea4e2ff0a mh-mingw: Also set __USE_MINGW_ACCESS flag for C++ code.
From-SVN: r269784
2019-03-18 22:36:56 +00:00