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bpo-36231 for v3.5.10: fix Unsupported MacOS X CPU type in ffi.h (#2633)

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Chaim Halbert 2023-02-26 08:36:51 -07:00 committed by GitHub
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132
plugins/python-build/share/python-build/patches/3.5.10/Python-3.5.10/0007-Port-ctypes-and-system-libffi-patch-for-arm64-macOS-.patch Normal file
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@ -0,0 +1,132 @@
From 409b4ecef88643996ce00482b650c0246a977a4b Mon Sep 17 00:00:00 2001
From: Chaim Halbert <chaim.leib.halbert@gmail.com>
Date: Sun, 26 Feb 2023 06:21:54 -0700
Subject: [PATCH] Port ctypes and system libffi patch for arm64/macOS 10.15+ to
Python 3.5.10
This backports the following ctypes and libffi pyenv patch for Python
3.6.15 to Python 3.5.10:
* `0004-Port-ctypes-and-system-libffi-patches-for-arm64-macO.patch`
This patch enables use of system libffi (fixing a broken `ctypes` module
on arm64 targets) and enables calling variadic functions on arm64.
---
setup.py | 65 +++++++++++++++++++++++++++++++++++++++++++-------------
1 file changed, 50 insertions(+), 15 deletions(-)
diff --git a/setup.py b/setup.py
index 2944c9dd6f..ab8065866f 100644
--- a/setup.py
+++ b/setup.py
@@ -73,6 +73,13 @@ def macosx_sdk_root():
sysroot = m.group(1)
return sysroot
+def is_macosx_at_least(vers):
+ if host_platform == 'darwin':
+ dep_target = sysconfig.get_config_var('MACOSX_DEPLOYMENT_TARGET')
+ if dep_target:
+ return tuple(map(int, str(dep_target).split('.'))) >= vers
+ return False
+
def is_macosx_sdk_path(path):
"""
Returns True if 'path' can be located in an OSX SDK
@@ -81,6 +88,13 @@ def is_macosx_sdk_path(path):
or path.startswith('/System/')
or path.startswith('/Library/') )
+def grep_headers_for(function, headers):
+ for header in headers:
+ with open(header, 'r') as f:
+ if function in f.read():
+ return True
+ return False
+
def find_file(filename, std_dirs, paths):
"""Searches for the directory where a given file is located,
and returns a possibly-empty list of additional directories, or None
@@ -1939,7 +1953,11 @@ class PyBuildExt(build_ext):
return True
def detect_ctypes(self, inc_dirs, lib_dirs):
- self.use_system_libffi = False
+ if not sysconfig.get_config_var("LIBFFI_INCLUDEDIR") and is_macosx_at_least((10,15)):
+ self.use_system_libffi = True
+ else:
+ self.use_system_libffi = '--with-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS")
+
include_dirs = []
extra_compile_args = []
extra_link_args = []
@@ -1986,19 +2004,29 @@ class PyBuildExt(build_ext):
libraries=math_libs)
self.extensions.extend([ext, ext_test])
- if not '--with-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS"):
- return
+ ffi_inc = sysconfig.get_config_var("LIBFFI_INCLUDEDIR")
+ ffi_lib = None
if host_platform == 'darwin':
- # OS X 10.5 comes with libffi.dylib; the include files are
- # in /usr/include/ffi
- inc_dirs.append('/usr/include/ffi')
-
- ffi_inc = [sysconfig.get_config_var("LIBFFI_INCLUDEDIR")]
- if not ffi_inc or ffi_inc[0] == '':
- ffi_inc = find_file('ffi.h', [], inc_dirs)
- if ffi_inc is not None:
- ffi_h = ffi_inc[0] + '/ffi.h'
+ if not self.use_system_libffi:
+ return
+ ffi_in_sdk = os.path.join(macosx_sdk_root(), "usr/include/ffi")
+ if os.path.exists(ffi_in_sdk):
+ ffi_inc = ffi_in_sdk
+ ffi_lib = 'ffi'
+ else:
+ # OS X 10.5 comes with libffi.dylib; the include files are
+ # in /usr/include/ffi
+ inc_dirs.append('/usr/include/ffi')
+ elif '--without-system-ffi' in sysconfig.get_config_var("CONFIG_ARGS"):
+ return
+
+ if not ffi_inc:
+ found = find_file('ffi.h', [], inc_dirs)
+ if found:
+ ffi_inc = found[0]
+ if ffi_inc:
+ ffi_h = ffi_inc + '/ffi.h'
with open(ffi_h) as f:
for line in f:
line = line.strip()
@@ -2009,15 +2037,22 @@ class PyBuildExt(build_ext):
ffi_inc = None
print('Header file {} does not define LIBFFI_H or '
'ffi_wrapper_h'.format(ffi_h))
- ffi_lib = None
- if ffi_inc is not None:
+ if ffi_lib is None and ffi_inc is not None:
for lib_name in ('ffi_convenience', 'ffi_pic', 'ffi'):
if (self.compiler.find_library_file(lib_dirs, lib_name)):
ffi_lib = lib_name
break
if ffi_inc and ffi_lib:
- ext.include_dirs.extend(ffi_inc)
+ ffi_headers = glob(os.path.join(ffi_inc, '*.h'))
+ if grep_headers_for('ffi_closure_alloc', ffi_headers):
+ try:
+ sources.remove('_ctypes/malloc_closure.c')
+ except ValueError:
+ pass
+ if grep_headers_for('ffi_prep_cif_var', ffi_headers):
+ ext.extra_compile_args.append("-DHAVE_FFI_PREP_CIF_VAR=1")
+ ext.include_dirs.append(ffi_inc)
ext.libraries.append(ffi_lib)
self.use_system_libffi = True
--
2.39.2

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plugins/python-build/share/python-build/patches/3.5.10/Python-3.5.10/0008-bpo-36231-Support-building-on-macOS-without-usr-incl.patch Normal file
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@ -0,0 +1,93 @@
From c7302116573d853d3181133477d9d0e4d4d3abfd Mon Sep 17 00:00:00 2001
From: Ned Deily <nad@python.org>
Date: Tue, 18 Jun 2019 16:28:13 -0400
Subject: [PATCH] bpo-36231: Support building on macOS without /usr/include
(GH-13773) (GH-14208)
---
.../2019-06-03-05-49-49.bpo-36231.RfmW_p.rst | 3 ++
setup.py | 53 ++++++++++++++++---
2 files changed, 49 insertions(+), 7 deletions(-)
create mode 100644 Misc/NEWS.d/next/macOS/2019-06-03-05-49-49.bpo-36231.RfmW_p.rst
diff --git a/Misc/NEWS.d/next/macOS/2019-06-03-05-49-49.bpo-36231.RfmW_p.rst b/Misc/NEWS.d/next/macOS/2019-06-03-05-49-49.bpo-36231.RfmW_p.rst
new file mode 100644
index 0000000000..c82e54c12c
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2019-06-03-05-49-49.bpo-36231.RfmW_p.rst
@@ -0,0 +1,3 @@
+Support building Python on macOS without /usr/include installed. As of macOS
+10.14, system header files are only available within an SDK provided by
+either the Command Line Tools or the Xcode app.
diff --git a/setup.py b/setup.py
index bcc4bfa89d..5e0cd02430 100644
--- a/setup.py
+++ b/setup.py
@@ -90,18 +90,57 @@ def sysroot_paths(make_vars, subdirs):
break
return dirs
+MACOS_SDK_ROOT = None
+
def macosx_sdk_root():
+ """Return the directory of the current macOS SDK.
+
+ If no SDK was explicitly configured, call the compiler to find which
+ include files paths are being searched by default. Use '/' if the
+ compiler is searching /usr/include (meaning system header files are
+ installed) or use the root of an SDK if that is being searched.
+ (The SDK may be supplied via Xcode or via the Command Line Tools).
+ The SDK paths used by Apple-supplied tool chains depend on the
+ setting of various variables; see the xcrun man page for more info.
"""
- Return the directory of the current OSX SDK,
- or '/' if no SDK was specified.
- """
+ global MACOS_SDK_ROOT
+
+ # If already called, return cached result.
+ if MACOS_SDK_ROOT:
+ return MACOS_SDK_ROOT
+
cflags = sysconfig.get_config_var('CFLAGS')
m = re.search(r'-isysroot\s+(\S+)', cflags)
- if m is None:
- sysroot = '/'
+ if m is not None:
+ MACOS_SDK_ROOT = m.group(1)
else:
- sysroot = m.group(1)
- return sysroot
+ MACOS_SDK_ROOT = '/'
+ cc = sysconfig.get_config_var('CC')
+ tmpfile = '/tmp/setup_sdk_root.%d' % os.getpid()
+ try:
+ os.unlink(tmpfile)
+ except:
+ pass
+ ret = os.system('%s -E -v - </dev/null 2>%s 1>/dev/null' % (cc, tmpfile))
+ in_incdirs = False
+ try:
+ if ret >> 8 == 0:
+ with open(tmpfile) as fp:
+ for line in fp.readlines():
+ if line.startswith("#include <...>"):
+ in_incdirs = True
+ elif line.startswith("End of search list"):
+ in_incdirs = False
+ elif in_incdirs:
+ line = line.strip()
+ if line == '/usr/include':
+ MACOS_SDK_ROOT = '/'
+ elif line.endswith(".sdk/usr/include"):
+ MACOS_SDK_ROOT = line[:-12]
+ finally:
+ os.unlink(tmpfile)
+
+ return MACOS_SDK_ROOT
def is_macosx_sdk_path(path):
"""
--
2.30.1 (Apple Git-130)