https://github.com/python/cpython/commit/909d5ac2959ea88e1d3b38f35676a1c7e5dd44f6 commit: 909d5ac2959ea88e1d3b38f35676a1c7e5dd44f6 branch: 3.13 author: Miss Islington (bot) <[email protected]> committer: FFY00 <[email protected]> date: 2024-10-20T08:20:34+01:00 summary:
[3.13] gh-115382: Fix cross compiles when host and target use same SOABI Co-authored-by: Vincent Fazio <[email protected]> Co-authored-by: Erlend E. Aasland <[email protected]> files: A Misc/NEWS.d/next/Build/2024-03-03-20-28-23.gh-issue-115382.97hJFE.rst M Lib/sysconfig/__init__.py M Lib/test/libregrtest/main.py M Lib/test/pythoninfo.py M configure M configure.ac diff --git a/Lib/sysconfig/__init__.py b/Lib/sysconfig/__init__.py index 80aef3447117e5..43f9276799b848 100644 --- a/Lib/sysconfig/__init__.py +++ b/Lib/sysconfig/__init__.py @@ -340,7 +340,20 @@ def _init_posix(vars): """Initialize the module as appropriate for POSIX systems.""" # _sysconfigdata is generated at build time, see _generate_posix_vars() name = _get_sysconfigdata_name() - _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) + + # For cross builds, the path to the target's sysconfigdata must be specified + # so it can be imported. It cannot be in PYTHONPATH, as foreign modules in + # sys.path can cause crashes when loaded by the host interpreter. + # Rely on truthiness as a valueless env variable is still an empty string. + # See OS X note in _generate_posix_vars re _sysconfigdata. + if (path := os.environ.get('_PYTHON_SYSCONFIGDATA_PATH')): + from importlib.machinery import FileFinder, SourceFileLoader, SOURCE_SUFFIXES + from importlib.util import module_from_spec + spec = FileFinder(path, (SourceFileLoader, SOURCE_SUFFIXES)).find_spec(name) + _temp = module_from_spec(spec) + spec.loader.exec_module(_temp) + else: + _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) build_time_vars = _temp.build_time_vars vars.update(build_time_vars) diff --git a/Lib/test/libregrtest/main.py b/Lib/test/libregrtest/main.py index 454c59652c326c..fc2244ee743e95 100644 --- a/Lib/test/libregrtest/main.py +++ b/Lib/test/libregrtest/main.py @@ -594,6 +594,7 @@ def _add_cross_compile_opts(self, regrtest_opts): '_PYTHON_PROJECT_BASE', '_PYTHON_HOST_PLATFORM', '_PYTHON_SYSCONFIGDATA_NAME', + "_PYTHON_SYSCONFIGDATA_PATH", 'PYTHONPATH' } old_environ = os.environ diff --git a/Lib/test/pythoninfo.py b/Lib/test/pythoninfo.py index d928e002ebda10..19b336ba96f20d 100644 --- a/Lib/test/pythoninfo.py +++ b/Lib/test/pythoninfo.py @@ -334,6 +334,7 @@ def format_groups(groups): "_PYTHON_HOST_PLATFORM", "_PYTHON_PROJECT_BASE", "_PYTHON_SYSCONFIGDATA_NAME", + "_PYTHON_SYSCONFIGDATA_PATH", "__PYVENV_LAUNCHER__", # Sanitizer options diff --git a/Misc/NEWS.d/next/Build/2024-03-03-20-28-23.gh-issue-115382.97hJFE.rst b/Misc/NEWS.d/next/Build/2024-03-03-20-28-23.gh-issue-115382.97hJFE.rst new file mode 100644 index 00000000000000..f8d19651fc5854 --- /dev/null +++ b/Misc/NEWS.d/next/Build/2024-03-03-20-28-23.gh-issue-115382.97hJFE.rst @@ -0,0 +1 @@ +Fix cross compile failures when the host and target SOABIs match. diff --git a/configure b/configure index 82089e6256f75b..a33b401d1cdecc 100755 --- a/configure +++ b/configure @@ -3708,7 +3708,7 @@ fi fi ac_cv_prog_PYTHON_FOR_REGEN=$with_build_python PYTHON_FOR_FREEZE="$with_build_python" - PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) '$with_build_python + PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) _PYTHON_SYSCONFIGDATA_PATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`) '$with_build_python { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $with_build_python" >&5 printf "%s\n" "$with_build_python" >&6; } diff --git a/configure.ac b/configure.ac index 13dc9fa36de887..d1f8e8e8733ed8 100644 --- a/configure.ac +++ b/configure.ac @@ -164,7 +164,7 @@ AC_ARG_WITH([build-python], dnl Build Python interpreter is used for regeneration and freezing. ac_cv_prog_PYTHON_FOR_REGEN=$with_build_python PYTHON_FOR_FREEZE="$with_build_python" - PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`:)$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) '$with_build_python + PYTHON_FOR_BUILD='_PYTHON_PROJECT_BASE=$(abs_builddir) _PYTHON_HOST_PLATFORM=$(_PYTHON_HOST_PLATFORM) PYTHONPATH=$(srcdir)/Lib _PYTHON_SYSCONFIGDATA_NAME=_sysconfigdata_$(ABIFLAGS)_$(MACHDEP)_$(MULTIARCH) _PYTHON_SYSCONFIGDATA_PATH=$(shell test -f pybuilddir.txt && echo $(abs_builddir)/`cat pybuilddir.txt`) '$with_build_python AC_MSG_RESULT([$with_build_python]) ], [ AS_VAR_IF([cross_compiling], [yes], _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
