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* closes bpo-39619 Fix os.chroot on HP-UX 11.31 (GH-18495)Ian Norton2020-02-141-0/+6
| | | | | | Setting `-D_XOPEN_SOURCE=700` on HP-UX causes system functions such as chroot to be undefined. This change stops `_XOPEN_SOURCE` begin set on HP-UX Co-authored-by: Benjamin Peterson <benjamin@python.org>
* bpo-38960: DTrace build fix for FreeBSD. (GH-17451)David Carlier2020-01-281-2/+1
| | | | | | | | DTrace build fix for FreeBSD. - allowing passing an extra flag as it need to define the arch size. - casting some probe's arguments.
* bpo-39395: putenv() and unsetenv() always available (GH-18135)Victor Stinner2020-01-241-3/+3
| | | | | | | | The os.putenv() and os.unsetenv() functions are now always available. On non-Windows platforms, Python now requires setenv() and unsetenv() functions to build. Remove putenv_dict from posixmodule.c: it's not longer needed.
* bpo-39406: Implement os.putenv() with setenv() if available (GH-18128)Victor Stinner2020-01-221-1/+1
| | | | | If setenv() C function is available, os.putenv() is now implemented with setenv() instead of putenv(), so Python doesn't have to handle the environment variable memory.
* bpo-39160 Align the verbs, grammar and defaults for `./configure --help` ↵Anthony Shaw2020-01-141-42/+59
| | | | (GH-17747)
* bpo-38021: Modify AIX platform_tag so it covers PEP 425 needs (GH-17303)Michael Felt2019-12-151-1/+11
| | | | | | | | Provides a richer platform tag for AIX that we expect to be sufficient for PEP 425 binary distribution identification. Any backports to earlier Python versions will be handled via setuptools. Patch by Michael Felt.
* closes bpo-38713: Expose P_PIDFD in os if it's defined. (GH-17071)Benjamin Peterson2019-11-061-1/+1
| | | https://bugs.python.org/issue38713
* bpo-37415: Fix stdatomic.h header check for ICC compiler (GH-16717)Victor Stinner2019-10-221-3/+6
| | | | | | | | | | | | Fix stdatomic.h header check for ICC compiler: the ICC implementation lacks atomic_uintptr_t type which is needed by Python. Test: * atomic_int and atomic_uintptr_t types * atomic_load_explicit() and atomic_store_explicit() * memory_order_relaxed and memory_order_seq_cst constants But don't test ATOMIC_VAR_INIT(): it's not used in Python.
* bpo-11410: Standardize and use symbol visibility attributes across POSIX and ↵Vinay Sajip2019-10-151-0/+20
| | | | Windows. (GH-16347)
* bpo-38301: In Solaris family, we must be sure to use '-D_REENTRANT' (#16446)Jesús Cea2019-09-281-0/+3
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* closes bpo-36002: Use AC_PATH_TOOL to find llvm-profdata and llvm-ar. (GH-14998)Doyle Rowland2019-09-131-2/+2
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* bpo-38110: Use fdwalk for os.closerange() when available. (GH-15224)Jakub Kulík2019-09-111-1/+1
| | | Use fdwalk() on platforms that support it to implement os.closerange().
* bpo-38068: Clean up gettimeofday configure logic. (GH-15775)Benjamin Peterson2019-09-101-9/+0
| | | Assume gettimeofday exists and takes two arguments.
* bpo-34652 again: Remove lchmod from the default AC_CHECK_FUNCS list. (GH-15758)Benjamin Peterson2019-09-091-1/+1
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* Remove leftovers from the times when long long wasn't required (GH-15501)Sergey Fedoseev2019-08-261-1/+1
| | | | In a38e9d139929a227e3899fbb638bc46c6cc6d8ba pyconfig.h.in was manually edited and that edit was overwritten when running autoreconf.
* bpo-18049: Sync thread stack size to main thread size on macOS (GH-14748)Ronald Oussoren2019-08-011-0/+2
| | | | | | This changeset increases the default size of the stack for threads on macOS to the size of the stack of the main thread and reenables the relevant recursion test.
* bpo-36044: Reduce number of unit tests run for PGO build (GH-14702)Neil Schemenauer2019-07-221-0/+8
| | | | | | | | | | | | Reduce the number of unit tests run for the PGO generation task. This speeds up the task by a factor of about 15x. Running the full unit test suite is slow. This change may result in a slightly less optimized build since not as many code branches will be executed. If you are willing to wait for the much slower build, the old behavior can be restored using './configure [..] PROFILE_TASK="-m test --pgo-extended"'. We make no guarantees as to which PGO task set produces a faster build. Users who care should run their own relevant benchmarks as results can depend on the environment, workload, and compiler tool chain.
* bpo-34602: Avoid failures setting macOS stack resource limit (GH-14546)Ned Deily2019-07-021-0/+6
| | | | | | | | | | | | | | | | | Under some conditions the earlier fix for bpo-18075, "Infinite recursion tests triggering a segfault on Mac OS X", now causes failures on macOS when attempting to change stack limit with resource.setrlimit resource.RLIMIT_STACK, like regrtest does when running the test suite. The reverted change had specified a non-default stack size when linking the python executable on macOS. As of macOS 10.14.4, the previous code causes a hard failure when running tests, although similar failures had been seen under some conditions under some earlier systems. Reverting the change to the interpreter stack size at link time helped for release builds but caused some tests to fail when built --with-pydebug. Try the opposite approach: continue to build the interpreter with an increased stack size on macOS and remove the failing setrlimit call in regrtest initialization. This will definitely avoid the resource.RLIMIT_STACK error and should have no, or fewer, side effects.
* Bump to 3.9.0a0Łukasz Langa2019-06-041-1/+1
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* bpo-26826: Expose copy_file_range in the os module (GH-7255)Pablo Galindo2019-05-311-1/+2
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* bpo-26836: Add os.memfd_create() (#13567)Zackery Spytz2019-05-291-1/+15
| | | | | | | | | | | | | | | | | | | | * bpo-26836: Add os.memfd_create() * Use the glibc wrapper for memfd_create() Co-Authored-By: Christian Heimes <christian@python.org> * Fix deletions caused by autoreconf. * Use MFD_CLOEXEC as the default value for *flags*. * Add memset_s to configure.ac. * Revert memset_s changes. * Apply the requested changes. * Tweak the docs.
* bpo-33164: blake2 fix for HP-UX (GH-13633)David Carlier2019-05-291-0/+2
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* bpo-32941: Add madvise() for mmap objects (GH-6172)Zackery Spytz2019-05-271-1/+1
| | | | Allow mmap objects to access the madvise() system call.
* bpo-21536: Fix configure.ac for LIBPYTHON on Android/Cygwin (GH-13552)E. M. Bray2019-05-241-3/+4
| | | | Add also missing AC_MSG_RESULT for AC_MSG_CHECKING(MACHDEP).
* bpo-21536: On Cygwin, C extensions must be linked with libpython (GH-13549)E. M. Bray2019-05-241-2/+2
| | | | | | | | | | It is also possible to link against a library or executable with a statically linked libpython, but not both with the same DLL. In fact building a statically linked python is currently broken on Cygwin for other (related) reasons. The same problem applies to other POSIX-like layers over Windows (MinGW, MSYS) but Python's build system does not seem to attempt to support those platforms at the moment.
* bpo-33164: update blake2 implementation (GH-6286)David Carlier2019-05-231-3/+1
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* bpo-36721: Add --embed option to python-config (GH-13500)Victor Stinner2019-05-231-1/+1
| | | | | | | | | | | | | | | | | | | | | To embed Python into an application, a new --embed option must be passed to "python3-config --libs --embed" to get "-lpython3.8" (link the application to libpython). To support both 3.8 and older, try "python3-config --libs --embed" first and fallback to "python3-config --libs" (without --embed) if the previous command fails. Add a pkg-config "python-3.8-embed" module to embed Python into an application: "pkg-config python-3.8-embed --libs" includes "-lpython3.8". To support both 3.8 and older, try "pkg-config python-X.Y-embed --libs" first and fallback to "pkg-config python-X.Y --libs" (without --embed) if the previous command fails (replace "X.Y" with the Python version). On the other hand, "pkg-config python3.8 --libs" no longer contains "-lpython3.8". C extensions must not be linked to libpython (except on Android, case handled by the script); this change is backward incompatible on purpose. "make install" now also installs "python-3.8-embed.pc".
* bpo-31904: Add posix module support for VxWorks (GH-12118)pxinwr2019-05-211-1/+1
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* bpo-36618: Don't add -fmax-type-align=8 flag for clang (GH-13320)Victor Stinner2019-05-141-20/+0
| | | | | Python 3.8 now respects the x86-64 ABI: memory allocations are aligned on 16 bytes. The clang flag was only used as a temporary workaround.
* bpo-34602: Avoid failures setting macOS stack resource limit (GH-13011)Ned Deily2019-04-291-6/+0
| | | | | | | | | | | | Under some conditions the earlier fix for bpo-18075, "Infinite recursion tests triggering a segfault on Mac OS X", now causes failures on macOS when attempting to change stack limit with resource.setrlimit resource.RLIMIT_STACK, like regrtest does when running the test suite. The reverted change had specified a non-default stack size when linking the python executable on macOS. As of macOS 10.14.4, the previous code causes a hard failure when running tests, although similar failures had been seen under some conditions under some earlier systems. For now, revert the original change and resume using the default stack size when linking the interpreter.
* bpo-21536: On Android, C extensions are linked to libpython (GH-12989)xdegaye2019-04-291-0/+8
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* bpo-36722: Don't define ALT_SOABI for Py_TRACE_REFS build (GH-12973)Victor Stinner2019-04-261-1/+2
| | | | Py_TRACE_REFS ABI is incompatible with release and debug (Py_DEBUG) ABI.
* bpo-36722: Debug build loads libraries built in release mode (GH-12952)Victor Stinner2019-04-251-0/+8
| | | | In debug build, import now also looks for C extensions compiled in release mode and for C extensions compiled in the stable ABI.
* bpo-36465: Make release and debug ABI compatible (GH-12615)Victor Stinner2019-04-241-2/+15
| | | | | | | | | | | | | | Release build and debug build are now ABI compatible: the Py_DEBUG define no longer implies Py_TRACE_REFS define which introduces the only ABI incompatibility. A new "./configure --with-trace-refs" build option is now required to get Py_TRACE_REFS define which adds sys.getobjects() function and PYTHONDUMPREFS environment variable. Changes: * Add ./configure --with-trace-refs * Py_DEBUG no longer implies Py_TRACE_REFS
* bpo-36707: Remove the "m" flag (pymalloc) from SOABI (GH-12931)Victor Stinner2019-04-241-3/+3
| | | | | | "./configure --with-pymalloc" no longer adds the "m" flag to SOABI (sys.implementation.cache_tag). Enabling or disabling pymalloc has no impact on the ABI.
* bpo-36618: Don't add -fmax-type-align flag to old clang (GH-12811)Victor Stinner2019-04-121-2/+7
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* bpo-36618: Add -fmax-type-align=8 flag for clang (GH-12809)Victor Stinner2019-04-121-13/+28
| | | | | | | | | | | | | | Add -fmax-type-align=8 to CFLAGS when clang compiler is detected. The pymalloc memory allocator aligns memory on 8 bytes. On x86-64, clang expects alignment on 16 bytes by default and so uses MOVAPS instruction which can lead to segmentation fault. Instruct clang that Python is limited to alignemnt on 8 bytes to use MOVUPS instruction instead: slower but don't trigger a SIGSEGV if the memory is not aligned on 16 bytes. Sadly, the flag must be expected to CFLAGS and not just CFLAGS_NODIST, since third party C extensions can have the same issue.
* bpo-36588: On AIX, remove major version from sys.platform (GH-12787)Michael Felt2019-04-121-0/+1
| | | | | | On AIX, sys.platform doesn't contain the major version anymore. Always return 'aix', instead of 'aix3' .. 'aix7'. Since older Python versions include the version number, it is recommended to always use sys.platform.startswith('aix').
* bpo-36605: make tags: parse Modules/_io directory (GH-12789)Victor Stinner2019-04-111-2/+2
| | | | "make tags" and "make TAGS" now also parse Modules/_io/*.c and Modules/_io/*.h.
* bpo-31904: Add cross-build support for VxWorks RTOS (GH-11968)pxinwr2019-02-271-2/+19
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* closes bpo-13497: Fix `broken nice` configure test. (GH-12041)ngie-eign2019-02-261-0/+2
| | | | | Per POSIX, `nice(3)` requires `unistd.h` and `exit(3)` requires `stdlib.h`. Fixing the test will prevent false positives with pedantic compilers like clang.
* bpo-12822: use monotonic clock for condvar if possible (GH-11723)Inada Naoki2019-02-201-1/+2
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* bpo-35903: Use autoconfig to probe for shm_open() and shm_unlink(). (#11765)Neil Schemenauer2019-02-081-0/+24
| | | | | | Use autoconfig to probe for shm_open() and shm_unlink(). Set SHM_NEEDS_LIBRT if we must link with librt to get the shm_* functions. Change setup.py to use the autoconfig defines. These changes should make it more likely that _multiprocessing/posixshmem.c gets built correctly on different platforms.
* bpo-35520: Fix build with dtrace support on certain systems. (#11194)Jakub Kulík2019-01-241-1/+1
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* bpo-35674: Add os.posix_spawnp() (GH-11554)Joannah Nanjekye2019-01-161-1/+1
| | | Add a new os.posix_spawnp() function.
* bpo-28503: Use crypt_r() when available instead of crypt() (GH-11373)Gregory P. Smith2018-12-301-0/+17
| | | | | Use crypt_r() when available instead of crypt() in the crypt module. As a nice side effect: This also avoids a memory sanitizer flake as clang msan doesn't know about crypt's internal libc allocated buffer.
* bpo-35257: Avoid leaking LTO linker flags into distutils (GH-10900)stratakis2018-12-191-1/+2
| | | | | | When compiling 3rd party C extensions, the linker flags used by the compiler for the interpreter and the stdlib modules, will get leaked into distutils. In order to avoid that, the PY_CORE_LDFLAGS and PY_LDFLAGS_NODIST are introduced to keep those flags separated.
* bpo-35351: Pass link time optimization flags to CFLAGS_NODIST (GH-10797)stratakis2018-12-041-1/+1
| | | | | | When using link time optimizations, the -flto flag is passed to BASECFLAGS, which makes it propagate to distutils. Those flags should be reserved for the interpreter and the stdlib extension modules only, thus moving those flags to CFLAGS_NODIST.
* bpo-35214: Initial clang MemorySanitizer support (GH-10479)Gregory P. Smith2018-11-121-1/+27
| | | | | | | | | | Adds configure flags for msan and ubsan builds to make it easier to enable. These also encode the detail that address sanitizer and memory sanitizer should disable pymalloc. Define MEMORY_SANITIZER when appropriate at build time and adds workarounds to existing code to mark things as initialized where the sanitizer is otherwise unable to determine that. This lets our build succeed under the memory sanitizer. not all tests pass without sanitizer failures yet but we're in pretty good shape after this.
* bpo-28015: Support LTO build with clang (GH-9908)serge-sans-paille2018-10-241-19/+48
| | | | | | | | | | .o generated by clang in LTO mode actually are LLVM bitcode files, which leads to a few errors during configure/build step: - add lto flags to the BASECFLAGS instead of CFLAGS, as CFLAGS are used to build autoconf test case, and some are not compatible with clang LTO (they assume binary in the .o, not bitcode) - force llvm-ar instead of ar, as ar is not aware of .o files generated by clang -flto
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