7.10.0

Changes

• Add comment that overflow of a counter in AO_stack_pop is impossible
• Add missed copyright header to ibmc/powerpc.h
• Adjust/reformat copyright header in armcc/arm_v6.h
• Build tests by default in CMake script
• Change AO_REAL_NEXT_PTR() to accept argument as reference only
• Change static initializer of initial_heap_ptr and spin_dummy to zero
• Consistently use '__sparc' predefined macro w/o trailing underscores
• Define AO_N_BITS to a bigger value if pointer type is larger than size_t
• Define AO_uintptr_t and use it in AO malloc and stack (refactoring)
• Define functions and variables of tests as static (refactoring)
• Discontinue support of configure '--enable-gcov' option
• Do not define AO_GCC_FORCE_HAVE_CAS for modern clang and gcc for RISC-V
• Eliminate 'can be declared as pointer to const' cppcheck FP in test_atomic
• Eliminate 'condition is always true' cppcheck style warnings in test_atomic
• Fix 'libtool library used but LIBTOOL is undefined' autoreconf error
• Give verbose error message if multiple include test_and_set_t_is_*_t.h
• Guard against direct include of internal headers from outside (refactoring)
• Hide AO_initial_heap internal symbol
• Implement AO_fetch_compare_and_swap_full for sunc/sparc
• Minor text improvement in README_details.txt and README_malloc.txt
• New macro (AO_NO_ASM_XCHG) to use Win32 InterlockedExchange
• Prefix/suffix no_sanitize attribute with double underscore (refactoring)
• Provide AO_INITIAL_HEAP_CHUNKS macro to control AO_initial_heap size
• Provide char/short-width CAS for RISC-V w/o '-latomic' if gcc v14+
• Refine comment about AO_double_t size in standard_ao_double_t.h
• Refine documentation when stack implementation is fully lock-free
• Remove AO_stack_push/pop based on compare_and_swap_double
• Rename CMake 'BUILD_SHARED_LIBS' option to 'AO_BUILD_SHARED_LIBS'
• Replace CMake 'build_tests' option to standard 'BUILD_TESTING' one
• Support RISC-V ILP32 ABI (rv64ilp32)
• Support double-wide CAS on 64-bit RISC-V with Zacas extension
• Support double-wide primitives on E2K (in 32- and 64-bit modes)
• Support targets with double-wide pointers (CHERI, E2K protected mode)
• Update autotools for release tar (ac-2.72, am-1.18.1, lt-2.5.4, m4-1.4.20)
• Use AO_internal_ptr_t to operate link pointer inside AO stack and malloc
• Use atomic_ops_sysdeps.S by configure on any SPARC with non-GCC compiler
• Workaround 'memory leak in add_elements' cppcheck FP in test_stack

Build status

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Coveralls status (code coverage)

Distribution tarball

libatomic_ops-7.10.0.tar.gz (see the Assets, md5: 1de9631daa0781a8c5a8457053d57cf0)

7.8.4

Changes

• Document Win32-specific AO_NO_ASM_XADD macro in README
• Eliminate 'atomic_thread_fence is unsupported with tsan' gcc-11 warning
• Eliminate 'munmap argument 1 from incompatible pointer type' gcc warning
• Eliminate 'uninitialized memory use' gcc-13 warning in test_atomic
• Fix all broken URLs in comments
• Fix atomic_ops_sysdeps.S compilation for SunPro compiler in CMake script
• Update URLs after repository transfer to bdwgc organization
• Update CMake minimum required version to 3.10

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

libatomic_ops-7.8.4.tar.gz (see the Assets, md5: e32047636a32bb9b1d3429965b949dbb)

7.8.2

Changes

• Eliminate 'atomic_thread_fence is unsupported with tsan' gcc-11 warning
• Eliminate 'comparing signed/unsigned values' lcc warning in add_chunk_as
• Fix 'undefined reference to AO_pt_lock' if configure is using clang-16
• Fix 'undefined reference to __atomic_load/store/cas_16' Mingw64-gcc error
• Fix 'undefined reference' linker errors if shared build on OpenBSD (CMake)
• Fix get_chunk for case of mmap area is located before AO_initial_heap
• Fix typo in AO_HAVE_compare_and_swap_double name in atomic_ops_stack.h
• Fix typo in comment of run_one_test of test_stack
• Fix typos in comments of atomic_ops_malloc.c and atomic_ops_stack.c/h
• Update cmake minimum required version to 3.5

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Distribution Tarball

libatomic_ops-7.8.2.tar.gz (see the Assets, md5: d07b3d8369d7f9efdca59f7501dd1117)

7.6.16

Changes

• Eliminate 'atomic_thread_fence is unsupported with tsan' gcc-11 warning
• Eliminate 'comparing signed/unsigned values' lcc warning in add_chunk_as
• Fix 'undefined reference to AO_pt_lock' if configure is using clang-16
• Fix 'undefined reference to __atomic_load/store/cas_16' Mingw64-gcc error
• Fix get_chunk for case of mmap area is located before AO_initial_heap
• Fix typo in AO_HAVE_compare_and_swap_double name in atomic_ops_stack.h
• Fix typos in comments of atomic_ops_malloc.c and atomic_ops_stack.c/h

Build status

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Distribution Tarball

libatomic_ops-7.6.16.tar.gz (see the Assets, md5: 27a2aef8ee847703219192554e205fbe)

7.4.20

Changes

• Eliminate 'comparing signed/unsigned values' lcc warning in add_chunk_as
• Fix get_chunk for case of mmap area is located before AO_initial_heap
• Fix typo in AO_HAVE_compare_and_swap_double name in atomic_ops_stack.h
• Fix typos in comments of atomic_ops_malloc.c and atomic_ops_stack.c/h

Build status

Travis CI build
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Distribution Tarball

libatomic_ops-7.4.20.tar.gz (see the Assets, md5: 20a8d6d7f2ee6f0b5246bf3ae8f0f259)

7.2l

Changes

• Fix get_chunk for case of mmap area is located before AO_initial_heap
• Fix typo in AO_HAVE_compare_and_swap_double name in atomic_ops_stack.h
• Fix typos in comments of atomic_ops_malloc.c and atomic_ops_stack.c/h

Build status

Travis CI build
AppVeyor CI build

Distribution Tarball

libatomic_ops-7.2l.tar.gz (see the Assets, md5: 539b859fa7dc3905e4b44484ea93b15d)

7.8.0

Changes

• Add AUTHORS file to the list of installed documentation
• Add goal to Makefile.msft to build all tests but not execute them
• Allocate marks[] dynamically and report all found errors in test_stack
• Always export stack_init/push_release/pop_acquire from atomic_ops_gpl
• Always use 'mfence' for nop_full if target CPU supports SSE2 (MS VC/x86)
• Avoid 'cast increases required alignment' warnings in atomic_ops_malloc.c
• Avoid breaking strict-aliasing rules in test_malloc and test_stack
• Avoid code duplication in AO_stack_push_explicit_aux_release
• Better document test_stack internals
• Build atomic_ops.lib by Makefile.msft (MS VC)
• Build test object and executable files in tests folder (MS VC)
• Define AO_stack_t uniformly
• Define double_compare_and_swap_full if MS VS 2017+ (x86)
• Do not expose AO_REAL_HEAD/NEXT_PTR implementation in header by default
• Document config macros in README_win32 and remove them from configure
• Eliminate 'function is never used' cppcheck warning for AO_stack_init
• Enforce most strict level of compiler warnings (MS VC)
• Ensure atomic_ops.c global symbols are always declared as extern 'C'
• Explicitly outline symbols exported in AO shared libraries with AO_API
• Hide AO_free_list symbol
• Implement AO_stack_init using memset
• Implement AO_test_and_set using InterlockedExchange8 (MS VC)
• Implement and/or/xor for AO_t, short and int types (MS VC)
• Implement nf/acq/rel variants of primitives on Windows RT (MS VC)
• Mention MIT near core library licensing terms in LICENSE file
• Move all README_*.txt and license files to the top folder
• Move all non-double intrinsic-based primitives to msftc/common32_defs.h
• Move gcc-4/alpha workaround outside AO_stack_pop_explicit_aux_acquire
• New AO_stack_is_lock_free API function
• New configure option (--disable-gpl) to skip building of libatomic_ops_gpl
• Print message of almost-lock-free implementation in test_stack if used
• Refine LICENSE and README about code parts covered by MIT and GPL-2.0
• Refine copyright terms in GPL source files
• Reformat atomic_ops_stack.c/h files
• Remove 'lib' prefix for atomic_ops_gpl.lib in Makefile.msft
• Remove redundant assert in AO_stack_pop_explicit_aux_acquire
• Remove redundant cast to AO_t in lock-free AO_stack_pop_acquire
• Rename LICENSING.txt to LICENSE file
• Rename VERBOSE macro to VERBOSE_STACK in test_stack (refactoring)
• Rename fetch_and_add to fetch_then_add in test_stack (refactoring)
• Replace obsolete AC_HELP_STRING with AS_HELP_STRING in configure
• Replace obsolete AC_TRY_COMPILE with AC_COMPILE_IFELSE in configure
• Split test_stack main into several functions (refactoring)
• Support Elbrus 2000 (gcc/e2k)
• Support build with CMake
• Support double-wide CAS on armv7+ and UWP/arm64 (MS VC)
• Support test_atomic with MS build w/o the need to run GNU make first
• Use GCC atomic intrinsics for SPARC
• Use builtin_expect in AO_stack_push_explicit_aux_release

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Distribution Tarball

libatomic_ops-7.8.0.tar.gz (see the Assets, md5: a7e51e8041c3e60c298c037b2789c3fa)

7.6.14

Changes

• Add note to README that AO malloc code has same license as AO stack
• Adjust/reformat content of LICENSING.txt
• Avoid AO_stack_t to cross CPU cache line boundary
• Do not assume 'ordered except earlier write' for UWP/arm64
• Do not name GCC intrinsics as C11 ones in ChangeLog and configure
• Eliminate '-pedantic is not option that controls warnings' GCC-6.3 message
• Ensure result of AO_test_and_set is always AO_TS_CLEAR or AO_TS_SET
• Fix 'AO_malloc redefinition' MS VC warning caused by attributes mismatch
• Fix 'use of undeclared SIG_BLOCK' Clang error if -std=c89 on Cygwin
• Fix AO_compare_and_swap_full asm code for clang on sparc
• Fix a typo in comment of AO_stack_push_explicit_aux_release
• Fix code indentation in main() of test_stack.c
• Refine AO_UNIPROCESSOR macro description in configure
• Remove outdated comment about unsupported Win64 in atomic_ops_stack.h
• Repeat black list check on CAS fail in stack_push_explicit_aux_release

Build status

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Coveralls status (code coverage)

Distribution Tarball

libatomic_ops-7.6.14.tar.gz (see the Assets, md5: ee8251f5091b7938d18be4dda843a515)

7.4.18

Changes

• Avoid AO_stack_t to cross CPU cache line boundary
• Do not assume 'ordered except earlier write' for UWP/arm64
• Ensure result of AO_test_and_set is always AO_TS_CLEAR or AO_TS_SET
• Fix 'use of undeclared SIG_BLOCK' Clang error if -std=c89 on Cygwin
• Fix a typo in comment of AO_stack_push_explicit_aux_release
• Fix code indentation in main of test_stack.c
• Remove outdated comment about unsupported Win64 in atomic_ops_stack.h
• Repeat black list check on CAS fail in stack_push_explicit_aux_release

Build status

Travis CI build
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Distribution Tarball

libatomic_ops-7.4.18.tar.gz (see the Assets, md5: 8664722bcb476f92c070fc69fa32392f)

7.2k

Changes

• Avoid AO_stack_t to cross CPU cache line boundary
• Fix a typo in comment of AO_stack_push_explicit_aux_release
• Fix code indentation in main of test_stack.c
• Remove outdated comment about unsupported Win64 in atomic_ops_stack.h
• Repeat black list check on CAS fail in stack_push_explicit_aux_release

Build status

Travis CI build
AppVeyor CI build

Distribution Tarball

libatomic_ops-7.2k.tar.gz (see the Assets, md5: eb5e5bae1edf4466961e30d91ec3e617)