Commit Graph

12126 Commits

Author SHA1 Message Date
GCC Administrator
7559d465fd Daily bump. 2021-01-22 00:16:22 +00:00
Jonathan Wakely
a1a967ce1f libstdc++: Regenerate Makefile.in
This removes a trivial whitespace difference between the currently
committed file and the one regenerated by autotools.

libstdc++-v3/ChangeLog:

	* src/c++17/Makefile.in: Regenerate.
2021-01-21 11:56:07 +00:00
GCC Administrator
b93d0e36c0 Daily bump. 2021-01-21 00:16:36 +00:00
David Edelsohn
fb39c4fe44 aix: make ctype_inline.h thread-safe and avoid _OBJ_DATA char subscript.
g++.dg/warn/Wstringop-overflow-6.C tests for a bogus overflow warning in
system headers.  This testcase was generating a -Wchar-subscript warning
on AIX because ctype_inline.h was subscripting AIX _OBJ_DATA using a char.
The _M_table case cast the subscript to unsigned char, but the _OBJ_DATA
case did not.

The investigation also exposed that AIX has added a thread-safe variant
of access to __lc_type that had not been applied to the libstdc++
implementation.

This patch casts the subscript to unsigned char and adds the THREAD_SAFE
variant.  libstdc++ always is compiled with pthreads, but it is good
to make the situation explicit and to document the appropriate usage.

Bootstrapped on powerpc-ibm-aix7.2.3.0.

libstdc++-v3/ChangeLog:

	* config/os/aix/ctype_inline.h (bool ctype<char>:: is): Cast
	_OBJ_DATA subscript to unsigned char. Add _THREAD_SAFE access to
	__lc_type.
	(const char* ctype<char>:: is): Same.
2021-01-20 17:42:02 -05:00
GCC Administrator
ef1f8ee67d Daily bump. 2021-01-19 00:16:35 +00:00
Jonathan Wakely
ec153f96f8 libstdc++: Only test writing to wostream if supported [PR 98725]
libstdc++-v3/ChangeLog:

	PR libstdc++/98725
	* testsuite/20_util/unique_ptr/io/lwg2948.cc:  Do not try to
	write to a wide character stream if wide character support is
	disabled in the library.
2021-01-18 14:23:13 +00:00
Jonathan Wakely
a81d2f1e41 libstdc++: Fix narrow char test to use stringbuf not wstringbuf
This seems to be a copy & paste error.

libstdc++-v3/ChangeLog:

	* testsuite/27_io/basic_stringstream/cons/char/1.cc: Use
	stringbuf not wstringbuf.
2021-01-18 12:45:10 +00:00
Jakub Jelinek
2e43880dbd libstd++: : Add workaround for as Error: file number less than one error [PR98708]
As mentioned in the PR, since the switch to DWARF5 by default instead of
DWARF4, gcc fails to build when configured against recent binutils.

The problem is that cxx11-ios_failure* is built in separate steps,
-S compilation (with -g -O2) followed by some sed and followed by
-c -g -O2 -g0 assembly.  When gcc is configured against recent binutils
and DWARF5 is the default, we emit .file 0 "..." directive on which the
assembler then fails (unless --gdwarf-5 is passed to it, but we don't want
that generally because on the other side older assemblers don't like -g*
passed to it when invoked on *.s file with compiler generated debug info.

I hope the bug will be fixed soon on the binutils side, but it would be nice
to have a workaround.

The following patch is one of the possibilities, another one is to do that
but add configure check for whether it is needed,
essentially
echo 'int main () { return 0; }' > conftest.c
${CXX} ${CXXFLAGS} -g -O2 -S conftest.c -o conftest.s
${CXX} ${CXXFLAGS} -g -O2 -g0 -c conftest.s -o conftest.o
and if the last command fails, we need that -gno-as-loc-support.
Or yet another option would be I think do a different check, whether
${CXX} ${CXXFLAGS} -g -O2 -S conftest.c -o conftest.s
${CXX} ${CXXFLAGS} -g -O2 -c conftest.s -o conftest.o
works and if yes, don't add the -g0 to cxx11-ios_failure*.s assembly.

2021-01-18  Jakub Jelinek  <jakub@redhat.com>

	PR debug/98708
	* src/c++11/Makefile.am (cxx11-ios_failure-lt.s, cxx11-ios_failure.s):
	Compile with -gno-as-loc-support.
	* src/c++11/Makefile.in: Regenerated.
2021-01-18 11:29:26 +01:00
GCC Administrator
59cf67d1cf Daily bump. 2021-01-17 00:16:23 +00:00
H.J. Lu
2c356f221b libstdc++-v3: Add -fcf-protection=none to -march=i486
-fcf-protection is automatically enabled in libstdc++ on Linux/x86.
Starting from

commit 77d372abec
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Jan 14 05:56:46 2021 -0800

    x86: Error on -fcf-protection with incompatible target

GCC issues an error on -fcf-protection with incompatible target:

... -fcf-protection ... libstdc++-v3/testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc  -m32   -O2 -g0 -fno-exceptions -fno-asynchronous-unwind-tables -march=i486 ...
cc1plus: error: '-fcf-protection' is not compatible with this target
FAIL: 29_atomics/atomic_flag/test_and_set/explicit-hle.cc (test for excess errors)

Add -fcf-protection=none to -march=i486 to compile explicit-hle.cc.

	* testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc:
	Add -fcf-protection=none to -march=i486.
2021-01-15 17:37:20 -08:00
GCC Administrator
5fff80fd79 Daily bump. 2021-01-15 00:16:28 +00:00
François Dumont
02e7af1122 libstdc++: Implement N3644 for _GLIBCXX_DEBUG iterators
libstdc++-v3/ChangeLog:

	* testsuite/23_containers/deque/debug/98466.cc: Make it pre-C++11
	compliant.
2021-01-14 22:43:26 +01:00
Alexandre Oliva
3651c1b5c9 calibrate intervals to avoid zero in futures poll test
We get occasional failures of 30_threads/future/members/poll.cc
on some platforms whose high resolution clock doesn't have such a high
resolution; wait_for_0 ends up as 0, and then some asserts fail as
intervals measured as longer than zero are tested for less than
several times zero.

This patch adds some calibration in the iteration count to set a
measurable base time interval with some additional margin.


for  libstdc++-v3/ChangeLog

	* testsuite/30_threads/future/members/poll.cc: Calibrate
	iteration count.
2021-01-14 16:12:22 -03:00
François Dumont
05a30af3f2 libstdc++: Implement N3644 for _GLIBCXX_DEBUG iterators
libstdc++-v3/ChangeLog:

	PR libstdc++/98466
	* include/bits/hashtable_policy.h (_Node_iterator_base()): Set _M_cur to nullptr.
	(_Node_iterator()): Make default.
	(_Node_const_iterator()): Make default.
	* include/debug/macros.h (__glibcxx_check_erae_range_after): Add _M_singular
	iterator checks.
	* include/debug/safe_iterator.h
	(_GLIBCXX_DEBUG_VERIFY_OPERANDS): Accept if both iterator are value initialized.
	* include/debug/safe_local_iterator.h (_GLIBCXX_DEBUG_VERIFY_OPERANDS):
	Likewise.
	* include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_valid_range): Add
	_M_singular checks on input iterators.
	* src/c++11/debug.cc (_Safe_iterator_base::_M_can_compare): Remove _M_singular
	checks.
	* testsuite/23_containers/deque/debug/98466.cc: New test.
	* testsuite/23_containers/unordered_map/debug/98466.cc: New test.
2021-01-14 19:23:54 +01:00
Jonathan Wakely
57a4f5e4ea libstdc++: Define function to throw filesystem_error [PR 98471]
Fix ordering problem on Windows targets where filesystem_error was used
before being defined.

libstdc++-v3/ChangeLog:

	PR libstdc++/98471
	* include/bits/fs_path.h (__throw_conversion_error): New
	function to throw or abort on character conversion errors.
	(__wstr_from_utf8): Move definition after filesystem_error has
	been defined. Use __throw_conversion_error.
	(path::_S_convert<_EcharT>): Use __throw_conversion_error.
	(path::_S_str_convert<_CharT, _Traits, _Allocator>): Likewise.
	(path::u8string): Likewise.
2021-01-14 16:26:30 +00:00
Jonathan Wakely
194a9d67be libstdc++: Update copyright dates on new files
The patch adding these files was approved in 2020 but it wasn't
committed until 2021, so the copyright years were not updated along with
the years in all the existing files.

libstdc++-v3/ChangeLog:

	* include/std/barrier: Update copyright years. Fix whitespace.
	* include/std/version: Fix whitespace.
	* testsuite/30_threads/barrier/1.cc: Update copyright years.
	* testsuite/30_threads/barrier/2.cc: Likewise.
	* testsuite/30_threads/barrier/arrive.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
	* testsuite/30_threads/barrier/completion.cc: Likewise.
2021-01-14 14:25:10 +00:00
GCC Administrator
be0851b8e9 Daily bump. 2021-01-14 00:16:24 +00:00
Jonathan Wakely
f04e7e540e libstdc++: Fix typo in ChangeLog-2020 2021-01-13 11:02:13 +00:00
Jonathan Wakely
0db5f48848 libstdc++: Remove <debug/array> from Doxygen config
This header was removed recently, so Doxygen shouldn't try to process
it.

libstdc++-v3/ChangeLog:

	* doc/doxygen/user.cfg.in (INPUT): Remove include/debug/array.
2021-01-13 10:29:45 +00:00
GCC Administrator
366f86bd42 Daily bump. 2021-01-11 00:16:17 +00:00
David Edelsohn
4a1d7f7e20 libstdc++: Suppress more vstring testsuite warnings. [PR 98613]
PR c++/57111 - 57111 - Generalize -Wfree-nonheap-object to delete

can create false positive warnings for vstring _S_empty_rep.

This patch prunes the excess false positive warnings from two more
testcases.

libstdc++-v3/ChangeLog:

	PR libstdc++/98613
	* testsuite/ext/vstring/cons/moveable.cc: Suppress false positive
	warning.
	* testsuite/ext/vstring/modifiers/assign/move_assign.cc: Same.
2021-01-10 18:22:51 -05:00
GCC Administrator
bf5cbb9edf Daily bump. 2021-01-09 00:16:22 +00:00
Olivier Hainque
98546324c7 Tweak dg-prune-output regex for out-of-build-tree contexts
libstdc++-v3/

	* testsuite/20_util/bind/ref_neg.cc: Tweak the
	dg-prune-output regex for out-of-build-tree contexts.
2021-01-08 16:23:23 +00:00
GCC Administrator
7d187e4f6f Daily bump. 2021-01-08 00:16:23 +00:00
Thomas Rodgers
b7c3f201be libstdc++: Add support for C++20 barriers
Adds <barrier>

libstdc++-v3/ChangeLog:

	* doc/doxygen/user.cfg.in: Add new header.
	* include/Makefile.am (std_headers): likewise.
	* include/Makefile.in: Regenerate.
	* include/precompiled/stdc++.h: Add new header.
	* include/std/barrier: New file.
	* include/std/version: Add __cpp_lib_barrier feature test macro.
	* testsuite/30_threads/barrier/1.cc: New test.
	* testsuite/30_threads/barrier/2.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
	* testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
	* testsuite/30_threads/barrier/arrive.cc: Likewise.
	* testsuite/30_threads/barrier/completion.cc: Likewise.
2021-01-07 12:52:37 -08:00
Patrick Palka
19f3c433cd libstdc++: Fix long double to_chars testcase [PR98384]
The testcase was failing to compile on some targets due to its use of
the non-standard functions nextupl and nextdownl.  This patch makes the
testcase instead use the C99 function nexttowardl in an equivalent way.

libstdc++-v3/ChangeLog:

	PR libstdc++/98384
	* testsuite/20_util/to_chars/long_double.cc: Use nexttowardl
	instead of the non-standard nextupl and nextdownl.
2021-01-07 12:41:14 -05:00
GCC Administrator
651b8a50a6 Daily bump. 2021-01-06 00:16:55 +00:00
Samuel Thibault
f56de3557f Update GNU/Hurd configure support
ChangeLog:

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

libffi/
	* configure: Re-generate.

libgomp/
	* configure: Re-generate.

gcc/

	* configure: Re-generate.

libatomic/

	* configure: Re-generate.

libbacktrace/

	* configure: Re-generate.

libcc1/

	* configure: Re-generate.

libgfortran/

	* configure: Re-generate.

libgomp/

	* configure: Re-generate.

libhsail-rt/

	* configure: Re-generate.

libitm/

	* configure: Re-generate.

libobjc/

	* configure: Re-generate.

liboffloadmic/

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

libphobos/

	* configure: Re-generate.

libquadmath/

	* configure: Re-generate.

libsanitizer/

	* configure: Re-generate.

libssp/

	* configure: Re-generate.

libstdc++-v3/

	* configure: Re-generate.

libvtv/

	* configure: Re-generate.

lto-plugin/

	* configure: Re-generate.

zlib/

	* configure: Re-generate.
2021-01-05 16:04:14 -07:00
Ed Smith-Rowland
ae1ada95fe Add <source_location> to the precompiled header.
2021-01-05  Ed Smith-Rowland  <3dw4rd@verizon.net>

	* include/precompiled/stdc++.h: Add <source_location> to C++20 section.
2021-01-05 15:50:06 -05:00
Jakub Jelinek
99dee82307 Update copyright years. 2021-01-04 10:26:59 +01:00
GCC Administrator
b6dd195aac Daily bump. 2021-01-02 00:16:24 +00:00
Jakub Jelinek
618e665a0f Rotate ChangeLog files - step 2 - remove 2020 entries from ChangeLog files.
Can't be committed together with the previous one due to the ChangeLog vs.
other files restrictions.
2021-01-01 17:30:04 +01:00
Jakub Jelinek
6e92696278 Rotate ChangeLog files - part 1 - add ChangeLog-2020.
2021-01-01  Jakub Jelinek  <jakub@redhat.com>

gcc/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
gcc/ada/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
gcc/cp/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
gcc/d/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
gcc/fortran/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
gcc/testsuite/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
libgfortran/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
libstdc++-v3/
	* ChangeLog-2020: Rotate ChangeLog.  New file.
2021-01-01 17:27:52 +01:00
GCC Administrator
adfe99ad8f Daily bump. 2020-12-28 00:16:28 +00:00
Gerald Pfeifer
15b99a6b83 libstdc++: Update link to Arm ABI
libstdc++-v3:

2020-12-27  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/xml/manual/abi.xml: Update link to Arm ABI.
	* doc/html/manual/abi.html: Regenerate.
2020-12-27 21:25:32 +01:00
Gerald Pfeifer
0e283e2c9f libstdc++: Move Valgrind references to https
libstdc++-v3:

2020-12-27  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/xml/manual/debug.xml: Move Valgrind references to https.
	* doc/html/manual/debug.html: Regenerate.
2020-12-27 11:17:21 +01:00
GCC Administrator
521bc8e1b0 Daily bump. 2020-12-27 00:16:18 +00:00
Gerald Pfeifer
9d426e4dbc libstdc++: Update link to Intel/GNU compatibility paper
libstdc++-v3:

2020-12-26  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/xml/manual/abi.xml: Update link to Intel's compatibility
	with GNU compilers document.
	* doc/html/manual/abi.html: Regenerate.
2020-12-26 13:37:48 +01:00
GCC Administrator
5b4da2d9e1 Daily bump. 2020-12-26 00:16:19 +00:00
Gerald Pfeifer
a746898dff libstdc++: Update link to Java docs
libstdc++-v3:

2020-12-25  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/xml/manual/messages.xml: Update link to Java docs.
	* doc/html/manual/facets.html: Ditto.
2020-12-25 19:14:35 +01:00
Gerald Pfeifer
4ee8e5949a libstdc++: Convert three doxygen.nl links to https
libstdc++-v3:
2020-12-25  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/xml/manual/documentation_hacking.xml: Convert three links
	to doxygen.nl to https.
	* doc/html/manual/documentation_hacking.html: Regenerate.
2020-12-25 15:20:43 +01:00
GCC Administrator
85d8ebcfc2 Daily bump. 2020-12-24 00:16:26 +00:00
Olivier Hainque
eb81c997d8 Account for VxWorks headers in libstdc++ test on names
Undefine various macros unexpectedly defined by VxWorks headers.


for  libstdc++-v3/ChangeLog

	* testsuite/17_intro/names.cc: Account for VxWorks headers.
2020-12-23 20:27:36 -03:00
GCC Administrator
1a5e728a54 Daily bump. 2020-12-22 00:16:23 +00:00
Patrick Palka
6a31d47e27 libstdc++: Disable floating-point std::to_chars on unsupported targets
This patch conditionally disables the floating-point std::to_chars
implementation on targets whose float and double aren't IEEE binary32
and binary64, until a proper fallback can be added for such targets.
This fixes a bootstrap failure on non-IEEE-754 FP targets such as
vax-netbsdelf.

The new preprocessor tests in c++config that detect the binary32 and
binary64 formats were copied from gcc/testsuite/gcc.dg/float-exact-1.c.

libstdc++-v3/ChangeLog:

	* include/bits/c++config (_GLIBCXX_FLOAT_IS_IEEE_BINARY_32):
	Define this macro.
	(_GLIBCXX_DOUBLE_IS_IEEE_BINARY_64): Likewise.
	* include/std/charconv (to_chars): Use these macros to
	conditionally hide the overloads for floating-point types.
	* src/c++17/floating_to_chars.cc: Use the macros to
	conditionally disable this file.
	(floating_type_traits<float>): Remove redundant static assert.
	(floating_type_traits<double>): Likewise.
	* testsuite/20_util/to_chars/double.cc: Run this test only on
	ieee-floats effective targets.
	* testsuite/20_util/to_chars/float.cc: Likewise.
	* testsuite/20_util/to_chars/long_double.cc: Likewise.
	* testsuite/lib/libstdc++.exp
	(check_effective_target_ieee-floats): Define new proc for
	detecting whether float and double have the IEEE binary32 and
	binary64 formats.
2020-12-21 15:15:36 -05:00
GCC Administrator
108beb75da Daily bump. 2020-12-21 00:16:20 +00:00
Jonathan Wakely
3621a7bb57 libstdc++: Fix indentation in <semaphore>
libstdc++-v3/ChangeLog:

	* include/std/semaphore: Fix indentation.
2020-12-20 18:49:46 +00:00
GCC Administrator
b1a2242e24 Daily bump. 2020-12-19 00:16:31 +00:00
Patrick Palka
60cecb2b83 libstdc++: Fix mistake in PR98374 change [PR98377]
The #ifdef RADIXCHAR directive should be moved one line up so that it
also guards the outer if statement, or else when RADIXCHAR is not
defined the outer if statement will end up nonsensically guarding the
declaration of output_length_upper_bound a few lines below it.

libstdc++-v3/ChangeLog:

	PR libstdc++/98377
	* src/c++17/floating_to_chars.cc (__floating_to_chars_precision):
	Fix mistake.
2020-12-18 13:01:49 -05:00
Patrick Palka
22a7e82c20 libstdc++: Fix build failure on AArch64 ILP32 [PR98370]
This should fix a build failure on AArch64 ILP32 due to int32_t mapping
to long int instead of int on this platform, which causes type deduction
to fail in the below call to std::max as reported in the PR.

libstdc++-v3/ChangeLog:

	PR libstdc++/98370
	* src/c++17/floating_to_chars.cc (__floating_to_chars_shortest):
	Provide explicit template arguments to the call to std::max.
2020-12-18 11:52:24 -05:00