./devel/libatomic_ops, Multi-platform library of atomic operations by Hans Boehm

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Branch: CURRENT, Version: 7.6.0, Package name: libatomic_ops-7.6.0, Maintainer: pkgsrc-users

This package provides semi-portable access to hardware provided
atomic memory operations. These might allow you to write code:

- That does more interesting things in signal handlers.
- Makes more effective use of multiprocessors by allowing you to write
clever lock-free code. Note that such code is very difficult to get
right, and will unavoidably be less portable than lock-based code. It
is also not always faster than lock-based code. But it may occasionally
be a large performance win.
- To experiment with new and much better thread programming paradigms, etc.

Required to build:

Master sites:

SHA1: b7236a3c3d6f3e5da69fe0c7b9508eb814a09825
RMD160: 2500519f00de1e1197eb3d57f3858702b07c13d8
Filesize: 481.618 KB

Version history: (Expand)

CVS history: (Expand)

   2017-05-29 14:55:10 by Thomas Klausner | Files touched by this commit (4) | Package updated
Log message:
Updated libatomic_ops to 7.6.0.

== [7.6.0] 2017-05-19 ==

* Add *_and/or/xor* and *_[fetch_]compare_and_swap* tests to test_atomic
* Add asm-based and/or/xor implementation for char/short/int (gcc/x86)
* Add asm-based char/short/int CAS implementation for gcc/x86[_64]
* Add configure '--disable-atomic-intrinsics' option
* Add dd_acquire_read case to test_atomic
* Add initial nios2 architecture support
* Add Makefile target (check-nolink) to compile all source without linking
* Add Makefile target to run all tests without test-driver
* Add test_atomic_generalized to Makefile and Makefile.msft
* Allow alternate CC (CROSS_CC) for AC_TRY_COMPILE (configure)
* Always define word-wide CAS for x86 (MS VC++ 8+)
* Avoid atomic_compare_exchange_n if no __GCC_HAVE_SYNC_COMPARE_AND_SWAP_n
* Avoid extra nop_full in stack_pop_acquire if atomic intrinsics used (x86)
* Basic support of TILE-Gx and TILEPro CPUs
* Code refactoring of int-wide primitives in gcc/x86.h
* Define AO_TS_SET as __GCC_ATOMIC_TEST_AND_SET_TRUEVAL if applicable
* Define CLANG/GNUC_PREREQ macros to check gcc/clang minimum version
* Do not define print_list() unless used (tests)
* Eliminate 'condition sizeof(long)>4 is always true' cppcheck style warning
* Eliminate 'ISO C90 does not support long long' compiler pedantic warning
* Eliminate 'scope of variable can be reduced' cppcheck warnings
* Eliminate redundant lwsync 2nd call in CAS_full on fail (gcc/PowerPC)
* Fix 'unknown attribute no_sanitize' compiler warning (clang prior to v3.8)
* Fix 'variable new value is never used' cppcheck style warning
* Fix missing double_compare_and_swap_dd_acquire_read
* Fix reporting about missing and/or/xor_dd_acquire_read (test_atomic)
* Hide AO_locks symbol
* Implement AO_CLEAR using C11 atomic intrinsic (GCC)
* Implement CAS_acquire/release/full using __atomic_compare_exchange_n (gcc)
* Implement char and/or/xor and short CAS for msftc ARM and X86[_64]
* Implement char CAS and char/short add for msftc X86[_64] (VS 2013+)
* Implement compiler_barrier using C11 __atomic_signal_fence (GCC)
* Implement int CAS/inc/dec for msftc/x86_64
* Implement short inc/dec directly for msftc ARM and X86[_64]
* Initial ibmc/powerpc (xlc) support
* New configure option (--enable-werror) to treat warnings as compiler errors
* New macro AO_PREFER_BUILTIN_ATOMICS to rely on C11 atomics fully (AArch64)
* Refine AO_nop_write comment for ARM big.LITTLE architecture
* Refine configure messages when checking for compiler options
* Refine documentation about _full memory ordering suffix
* Refine README how to build the library source from the repository
* Relax shareability domain for dmb st in AO_nop_write (ARM/AArch64)
* Remove redundant include windows.h from headers (msftc/x86[_64])
* Remove spaces at EOLn in asm code
* Report gcc/clang pedantic warnings (configure)
* Support NaCl/arm
* Suppress 'ISO C does not support __int128 type' GCC/Clang pedantic warning
* Test store/CAS emulation explicitly
* Update shared libraries version info to 2:0:1
* Use GCC atomic intrinsics for PowerPC 32/64 (GCC 4.8+ and clang 3.8+)
* Use GCC atomic intrinsics for x86, x64, ARM, MIPS (gcc 4.9+, clang 3.5+)
* Use generalized double-wide load/store if AO_PREFER_GENERALIZED (gcc/x86)
* Workaround '#error' cppcheck error messages
* Workaround 'condition always true', 'unused stored value' cppcheck warnings
* Workaround 'function is never used' cppcheck style warnings
* Workaround 'obsolescent ftime called' cppcheck style warning (POSIX)
* Workaround 'overflow in pointer subtraction' cppcheck warning
* Workaround 'shifting 32-bit value by 32 bits undefined' cppcheck warning
* Workaround 'uninitialized memory use' code analyzer false warning (tests)
* Workaround 'uninitialized variable' cppcheck error in hpc/hppa.h
* Workaround 'value of macro is unknown' cppcheck information messages
* Workaround a bug in double-wide intrinsics of Clang/x64 with ASan enabled
* Workaround MSan warning about uninitialized data read by generalized store
   2017-05-19 14:05:51 by Ryosuke Moro | Files touched by this commit (1)
Log message:
fix directory name
   2017-05-18 22:37:03 by Adam Ciarcinski | Files touched by this commit (3) | Package updated
Log message:
== [7.4.6] 2017-05-18 ==

* Add assertion that double-wide CAS target is aligned (msftc/x86[_64])
* Add configure --enable-gcov option (enable code coverage analysis)
* Code refactoring of gcc/powerpc.h to avoid code duplication
* Eliminate 'cast to long from void*' compiler warning in test_atomic
* Eliminate 'implicit declaration of close' warning in 'strict ANSI' mode
* Eliminate 'missing braces around initializer' gcc warning (hppa)
* Eliminate 'printf format specifies type void*' GCC pedantic warnings
* Eliminate 'value shift followed by expansion' false code defect warning
* Enable limited testing in Makefile.msft without Cygwin
* Fix (delete) comment for AO_and_full (x86)
* Fix block_all_signals compilation in 'strict ANSI' mode
* Fix missing .exe for test filenames in Makefile (MinGW)
* Fix missing printed value names (test_stack)
* Implement fetch-CAS for s390[x] (gcc)
* Move libraries version info to the beginning of Makefile.am
* Refine documentation in Makefile.msft how to run all tests (MS VC)
* Refine README about library downloading
* Rename doc/README.txt to doc/README_details.txt
* Support AIX/ppc (gcc)
* Support CFLAGS_EXTRA to pass extra user-defined compiler flags (make)
* Support n32 ABI for mips64
* Update shared libraries version info for 7.4.6+ (to 1:4:0)
* Use 'inline code' format for commands in README.md
* Use LLD and SCD instructions on mips64
* Workaround 'resource leak' false positives in AO_malloc, add_elements
* Workaround 'uninitialized memory use' MemorySanitizer warning (test_atomic)
Also, includes 7.2h changes
   2016-06-12 16:33:57 by Thomas Klausner | Files touched by this commit (4) | Package updated
Log message:
Updated libatomic_ops to 7.4.4.

== [7.4.4] 2016-05-24 ==

* Eliminate 'signed-to-unsigned value extension' compiler warning in malloc.
* Eliminate 'variable set but not used' Cppcheck warnings in test_stack.
* Fix GCC 5.x compatibility for AArch64 double-wide primitives.
* Fix makefile preventing AO_pause undefined in libatomic_ops_gpl.
* Fix missing casts to match printf format specifier in test_atomic.
* Fix missing output folder on making auto-generated test files (Automake).
* Fix typo in configure.ac (in description of AO_ASM_X64_AVAILABLE).
* Minor fix of code alignment in mips AO_compare_and_swap.
* Remove TODO file.
* Restore contribution info in ChangeLog for authors not listed in git log.
Also, includes 7.2g changes.
   2015-11-03 04:29:40 by Alistair G. Crooks | Files touched by this commit (1995)
Log message:
Add SHA512 digests for distfiles for devel category

Issues found with existing distfiles:
No changes made to these distinfo files.

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.
   2014-11-09 09:33:14 by OBATA Akio | Files touched by this commit (1)
Log message:
Provide patched Makefile.in regen form patched Makefile.am.
   2014-11-09 09:32:17 by OBATA Akio | Files touched by this commit (2) | Package updated
Log message:
Update libatomic_ops to 7.4.2.

== [7.4.2] 2014-05-02 ==

* Fix a typo in doc/README.txt (remove redundant "an" article).
* Update emails/links due to project site transition.
   2014-11-02 13:03:02 by OBATA Akio | Files touched by this commit (1)
Log message:
current this package does not come from CVS snapshot.