mirror of
https://github.com/gcc-mirror/gcc.git
synced 2026-05-06 23:25:24 +02:00
a261719a1f
Darwin has kernel support for this facility from 10.12 (macOS Sierra). From 10.15 (macOS Catalina) 64bit qualitities are supported. When the library is built for 10.12+ both 32b and 64b quantities will be supported by the DSO which means it can be installed on 10.12+ with support for 64bit available when the instalation is >= 10.15. The header will only recognise 64b quantities when the deployment version is >= 10.15. If the library is built for <= 10.11, the support will be missing and attempts to use it wlll result in link errors. The platform wait type is unconditionally set to 32bits, since this is compatible across supported OS editions. PR libstdc++/120527 libstdc++-v3/ChangeLog: * include/bits/atomic_wait.h: * src/c++20/atomic.cc (__ulock_wait): Enable supported Darwin versions. (__ulock_wake): Likewise. (UL_COMPARE_AND_WAIT): New. (UL_COMPARE_AND_WAIT64): New. (ULF_WAKE_ALL): New. (_GLIBCXX_HAVE_PLATFORM_WAIT): Enable for suppported Darwin versions. Co-authored-by: Iain Sandoe <iain@sandoe.co.uk> Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.