Commit Graph

374 Commits

Author SHA1 Message Date
Pablo Galindo aac4d0342c
bpo-26826: Expose copy_file_range in the os module (GH-7255) 2019-05-31 19:39:47 +01:00
Zackery Spytz 43fdbd2729 bpo-26836: Add os.memfd_create() (#13567)
* 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.
2019-05-29 21:57:03 +02:00
David Carlier d8b7551672 bpo-33164: blake2 fix for HP-UX (GH-13633) 2019-05-29 19:58:11 +09:00
Zackery Spytz 02db696732 bpo-32941: Add madvise() for mmap objects (GH-6172)
Allow mmap objects to access the madvise() system call.
2019-05-27 18:48:16 +02:00
E. M. Bray b1fc417841 bpo-21536: Fix configure.ac for LIBPYTHON on Android/Cygwin (GH-13552)
Add also missing AC_MSG_RESULT for AC_MSG_CHECKING(MACHDEP).
2019-05-24 18:39:38 +02:00
E. M. Bray c994c8fc19 bpo-21536: On Cygwin, C extensions must be linked with libpython (GH-13549)
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.
2019-05-24 17:33:47 +02:00
David Carlier 51aa35e9e1 bpo-33164: update blake2 implementation (GH-6286) 2019-05-23 13:32:44 +09:00
Victor Stinner 0a8e57248b
bpo-36721: Add --embed option to python-config (GH-13500)
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".
2019-05-23 03:30:23 +02:00
pxinwr f2d7ac7e5b bpo-31904: Add posix module support for VxWorks (GH-12118) 2019-05-21 12:46:37 +02:00
Victor Stinner d97adfb409
bpo-36618: Don't add -fmax-type-align=8 flag for clang (GH-13320)
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.
2019-05-14 19:29:53 +02:00
Ned Deily 883dfc668f
bpo-34602: Avoid failures setting macOS stack resource limit (GH-13011)
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.
2019-04-29 15:07:39 -04:00
xdegaye 254b309c80 bpo-21536: On Android, C extensions are linked to libpython (GH-12989) 2019-04-29 09:27:40 +02:00
Victor Stinner 6d13e5b35b
bpo-36722: Don't define ALT_SOABI for Py_TRACE_REFS build (GH-12973)
Py_TRACE_REFS ABI is incompatible with release and debug (Py_DEBUG)
ABI.
2019-04-26 18:56:19 +02:00
Victor Stinner 5422e3cfb7
bpo-36722: Debug build loads libraries built in release mode (GH-12952)
In debug build, import now also looks for C extensions compiled in
release mode and for C extensions compiled in the stable ABI.
2019-04-26 01:40:00 +02:00
Victor Stinner f4e4703e74
bpo-36465: Make release and debug ABI compatible (GH-12615)
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
2019-04-25 00:56:28 +02:00
Victor Stinner 6c44fde3e0
bpo-36707: Remove the "m" flag (pymalloc) from SOABI (GH-12931)
"./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.
2019-04-24 16:10:09 +02:00
Victor Stinner a304b136ad
bpo-36618: Don't add -fmax-type-align flag to old clang (GH-12811) 2019-04-13 00:51:07 +02:00
Victor Stinner 23a683adf8
bpo-36618: Add -fmax-type-align=8 flag for clang (GH-12809)
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.
2019-04-12 21:27:37 +02:00
Michael Felt 9d949f7796 bpo-36588: On AIX, remove major version from sys.platform (GH-12787)
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').
2019-04-12 16:15:32 +02:00
Victor Stinner 21a74a9d77
bpo-36605: make tags: parse Modules/_io directory (GH-12789)
"make tags" and "make TAGS" now also parse Modules/_io/*.c
and Modules/_io/*.h.
2019-04-11 22:28:12 +02:00
pxinwr 32f5fdd7f4 bpo-31904: Add cross-build support for VxWorks RTOS (GH-11968) 2019-02-27 12:09:28 +01:00
ngie-eign 90c6facebd closes bpo-13497: Fix `broken nice` configure test. (GH-12041)
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.
2019-02-25 21:34:24 -08:00
Inada Naoki 001fee14e0
bpo-12822: use monotonic clock for condvar if possible (GH-11723) 2019-02-20 10:00:09 +09:00
Neil Schemenauer 5741c45acf
bpo-35903: Use autoconfig to probe for shm_open() and shm_unlink(). (#11765)
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.
2019-02-08 10:48:46 -08:00
Jakub Kulík 5c8f537669 bpo-35520: Fix build with dtrace support on certain systems. (#11194) 2019-01-24 18:29:48 +01:00
Joannah Nanjekye 92b8322e7e bpo-35674: Add os.posix_spawnp() (GH-11554)
Add a new os.posix_spawnp() function.
2019-01-16 14:29:26 +01:00
Gregory P. Smith 387512c7ec
bpo-28503: Use crypt_r() when available instead of crypt() (GH-11373)
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.
2018-12-30 15:42:32 -08:00
stratakis cf10a750f4 bpo-35257: Avoid leaking LTO linker flags into distutils (GH-10900)
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.
2018-12-19 18:19:01 +01:00
stratakis f92c7aa1ae bpo-35351: Pass link time optimization flags to CFLAGS_NODIST (GH-10797)
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.
2018-12-04 15:54:01 +01:00
Gregory P. Smith 1584a00815
bpo-35214: Initial clang MemorySanitizer support (GH-10479)
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.
2018-11-12 12:07:14 -08:00
serge-sans-paille 5ad36f9b21 bpo-28015: Support LTO build with clang (GH-9908)
.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
2018-10-25 01:54:22 +02:00
Benjamin Peterson 65ed12cb7c
closes bpo-34869: Remove LDLAST. (GH-9667) 2018-10-03 19:23:24 -07:00
Bjorn Andersson bb8165172a bpo-31425: Expose AF_QIPCRTR in socket module (GH-3706)
The AF_QIPCRTR address family was introduced in Linux v4.7.

Co-authored-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-09-26 16:47:52 +03:00
Ross Burton 2a9c3805dd closes bpo-34585: Don't do runtime test to get float byte order. (GH-9085)
Currently configure.ac uses AC_RUN_IFELSE to determine the byte order of doubles, but this silently fails under cross compilation and Python doesn't do floats properly.

Instead, steal a macro from autoconf-archive which compiles code using magic doubles (which encode to ASCII) and grep for the representation in the binary.

RFC because this doesn't yet handle the weird ancient ARMv4 OABI 'mixed-endian' encoding properly. This encoding is ancient and I don't believe the union of "Python 3.8 users" and "OABI users" has anything in. Should the support for this just be dropped too? Alternatively, someone will need to find an OABI toolchain to verify the encoding of the magic double.
2018-09-18 23:25:48 -07:00
Eitan Adler 24f6846920 bpo-33486: regen autotools files using autoupdate+autoreconf (GH-6853) 2018-09-14 15:55:20 -07:00
Benjamin Peterson a4414ef20b
Don't run AC_STRUCT_TIMEZONE twice. (GH-9305) 2018-09-14 08:58:57 -07:00
Benjamin Peterson ea13740a37
bpo-34674: Assume unistd.h exists on Unix. (GH-9290) 2018-09-13 21:57:31 -07:00
Benjamin Peterson ed709d5699
bpo-34652: Remove lchmod from the big func checking block. (GH-9247)
A fix for 883702ebb8.
2018-09-12 17:22:11 -07:00
Benjamin Peterson 40caa05fa4
closes bpo-34652: Always disable lchmod on Linux. (GH-9234) 2018-09-12 15:52:40 -07:00
Benjamin Peterson 865c17fb28
closes bpo-34640: Remove the TANH_PRESERVES_ZERO_SIGN configure check. (GH-9206) 2018-09-12 06:51:18 -07:00
Benjamin Peterson 50c99d917c Remove configure check LOG1P_DROPS_ZERO_SIGN. (GH-9193)
It is unused.

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2018-09-11 16:30:04 -07:00
William Grzybowski 23e65b2555 bpo-33625: Release GIL for grp.getgr{nam,gid} and pwd.getpw{nam,uid} (GH-7081)
Release GIL on grp.getgrnam(), grp.getgrgid(), pwd.getpwnam() and
pwd.getpwuid() if reentrant variants of these functions are available.

Patch by William Grzybowski.
2018-09-07 14:06:15 +02:00
Michael Osipov 3738fadc67 bpo-34448: Improve output of usable wchar_t check (GH-8846) 2018-08-24 19:17:19 +03:00
Michael Osipov 48ce4897f8 bpo-34412: Make signal.strsignal() work on HP-UX (GH-8786)
Introduce a configure check for strsignal(3) which defines HAVE_STRSIGNAL for
signalmodule.c. Add some common signals on HP-UX. This change applies for
Windows and HP-UX.
2018-08-23 16:27:19 +03:00
Xiang Zhang 4c8555773a
bpo-30411: Use --git-dir instead of -C to make git work under version below 1.8.5. (GH-8744) 2018-08-20 22:36:19 +08:00
Antoine Pitrou 961d54c5c1
bpo-32430: Rename Modules/Setup.dist to Modules/Setup (GH-8229)
bpo-32430: Rename Modules/Setup.dist to Modules/Setup

Remove the necessity to copy the former manually to the latter when updating the local source tree.
2018-07-16 19:03:03 +02:00
Benjamin Peterson 15c7b2abdf
bpo-34121: Fix detection of C11 atomic support on clang. (GH-8288) 2018-07-15 17:01:42 -07:00
Eitan Adler b91a3a0d61 bpo-33648: Remove PY_WARN_ON_C_LOCALE (GH-7114)
This code does not appear to be used anywhere in the python code base.
The use was removed in eb81795d7d.
2018-07-11 20:01:27 +09:00
Victor Stinner 06fe77a84b
bpo-30345: Add -g to LDFLAGS for LTO (GH-7709)
Add -g to LDFLAGS when compiling with LTO to get debug symbols.
2018-06-19 18:24:58 +02:00
Ned Deily ced0adb263
bpo-32493: Correct test for uuid_enc_be availability in configure.ac. (GH-7511) (GH-7567) 2018-06-09 18:19:57 -04:00