- Eliminate race with liberal use of sleep(3) [1]
- Fix NetBSD-specific implementation way of testing result from pthread_cancel
by testing with `td` instead of `NULL` [2]
PR: 196738 [1]
PR: 191906 [2]
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
C++14 support[1], adds more C++1z features[2], and fixes the following
LWG issues[3]:
1450: Contradiction in regex_constants
2003: String exception inconsistency in erase.
2075: Progress guarantees, lock-free property, and scheduling
assumptions
2104: unique_lock move-assignment should not be noexcept
2112: User-defined classes that cannot be derived from
2132: std::function ambiguity
2135: Unclear requirement for exceptions thrown in
condition_variable::wait()
2142: packaged_task::operator() synchronization too broad?
2182: Container::[const_]reference types are misleadingly specified
2186: Incomplete action on async/launch::deferred
2188: Reverse iterator does not fully support targets that overload
operator&
2193: Default constructors for standard library containers are explicit
2205: Problematic postconditions of regex_match and regex_search
2213: Return value of std::regex_replace
2240: Probable misuse of term "function scope" in [thread.condition]
2252: Strong guarantee on vector::push_back() still broken with C++11?
2257: Simplify container requirements with the new algorithms
2258: a.erase(q1, q2) unable to directly return q2
2263: Comparing iterators and allocator pointers with different
const-character
2268: Setting a default argument in the declaration of a member
function assign of std::basic_string
2271: regex_traits::lookup_classname specification unclear
2272: quoted should use char_traits::eq for character comparison
2278: User-defined literals for Standard Library types
2280: begin / end for arrays should be constexpr and noexcept
2285: make_reverse_iterator
2288: Inconsistent requirements for shared mutexes
2291: std::hash is vulnerable to collision DoS attack
2293: Wrong facet used by num_put::do_put
2299: Effects of inaccessible key_compare::is_transparent type are not
clear
2301: Why is std::tie not constexpr?
2304: Complexity of count in unordered associative containers
2306: match_results::reference should be value_type&, not const
value_type&
2308: Clarify container destructor requirements w.r.t. std::array
2313: tuple_size should always derive from integral_constant<size_t, N>
2314: apply() should return decltype(auto) and use decay_t before
tuple_size
2315: weak_ptr should be movable
2316: weak_ptr::lock() should be atomic
2317: The type property queries should be UnaryTypeTraits returning
size_t
2320: select_on_container_copy_construction() takes allocators, not
containers
2322: Associative(initializer_list, stuff) constructors are
underspecified
2323: vector::resize(n, t)'s specification should be simplified
2324: Insert iterator constructors should use addressof()
2329: regex_match()/regex_search() with match_results should forbid
temporary strings
2330: regex("meow", regex::icase) is technically forbidden but should
be permitted
2332: regex_iterator/regex_token_iterator should forbid temporary
regexes
2339: Wording issue in nth_element
2341: Inconsistency between basic_ostream::seekp(pos) and
basic_ostream::seekp(off, dir)
2344: quoted()'s interaction with padding is unclear
2346: integral_constant's member functions should be marked noexcept
2350: min, max, and minmax should be constexpr
2356: Stability of erasure in unordered associative containers
2357: Remaining "Assignable" requirement
2359: How does regex_constants::nosubs affect basic_regex::mark_count()?
2360: reverse_iterator::operator*() is unimplementable
[1] http://libcxx.llvm.org/cxx1y_status.html
[2] http://libcxx.llvm.org/cxx1z_status.html
[3] http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-defects.html
Exp-run: antoine
MFC after: 1 month
sanitizer sources. It is apparently unnecessary, and causes trouble for
people using WITHOUT_IPFILTER.
Reported by: Pawel Biernacki <pawel.biernacki@gmail.com>, Kurt Lidl <lidl@pix.net>
According to ELF ABI, alignment 0 and 1 has the same meaning: the
section has no alignment constraints.
PR: 196715
Sponsored by: The FreeBSD Foundation
- Fix depend target by removing a space after an "-I" inclusion option.
- Fix some minor compile issues in the "osmtest" utility.
MFC after: 3 days
PR: 196580
Sponsored by: Mellanox Technologies
[Aarch64] Customer lowering of CTPOP to SIMD should check for NEON
availability
This ensures llvm's AArch64 backend does not emit floating point
instructions if they are disabled.
Previously elftoolchain readelf(1) produced correct description text
only for Linux note types.
Upstream elftoolchain ticket #473
Differential Revision: https://reviews.freebsd.org/D1428
Reviewed by: kib
Sponsored by: The FreeBSD Foundation
(or loading a dso linked to libthr.so into process which was not
linked against threading library).
- Remove libthr interposers of the libc functions, including
__error(). Instead, functions calls are indirected through the
interposing table, similar to how pthread stubs in libc are already
done. Libc by default points either to syscall trampolines or to
existing libc implementations. On libthr load, libthr rewrites the
pointers to the cancellable implementations already in libthr. The
interposition table is separate from pthreads stubs indirection
table to not pull pthreads stubs into static binaries.
- Postpone the malloc(3) internal mutexes initialization until libthr
is loaded. This avoids recursion between calloc(3) and static
pthread_mutex_t initialization.
- Reinstall signal handlers with wrapper on libthr load. The
_rtld_is_dlopened(3) is used to avoid useless calls to sigaction(2)
when libthr is statically referenced from the main binary.
In the process, fix openat(2), swapcontext(2) and setcontext(2)
interposing. The libc symbols were exported at different versions
than libthr interposers. Export both libc and libthr versions from
libc now, with default set to the higher version from libthr.
Remove unused and disconnected swapcontext(3) userspace implementation
from libc/gen.
No objections from: deischen
Tested by: pho, antoine (exp-run) (previous versions)
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Some files lack required #include <sys/stat.h>. The #ifdef is per ngie's
request; the includes are clearly necessary for struct stat.
The faccessat test fails because it tries to use AT_SYMLINK_NOFOLLOW with
faccessat(), which is not specified by POSIX.1-2008.
Differential Revision: https://reviews.freebsd.org/D1411
Reviewed by: ngie
In general 64-bit ELF notes use 4-byte padding, not 8, despite what is
claimed in various specs.
Upstream elftoolchain ticket 472
https://sourceforge.net/p/elftoolchain/tickets/472/
Sponsored by: The FreeBSD Foundation
To be able to info pages consider installing texinfo from ports print/texinfo or
via pkg: pkg install texinfo
Differential Revision: https://reviews.freebsd.org/D1409
Reviewed by: emaste, imp (previous version)
Relnotes: yes
Fix transformation of add with pc argument to adr for non-immediate
arguments.
This fixes an "Unimplemented" error when assembling certain ARM add
instructions with pc-relative arguments.
Reported by: sbruno
PR: 196412, 196423
job
The h_raw application doesn't do proper bounds checking without the option
being supplied via the build, which means that it doesn't throw signals and
fail as expected
PR: 196430
X-MFC with: r276479
