mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
b7a313d84e
The gcc 8 compiler won't compile the python extension code with the
following errors (one example):
python.c:830:15: error: cast between incompatible function types from \
‘PyObject * (*)(struct pyrf_evsel *, PyObject *, PyObject *)’ \
uct _object * (*)(struct pyrf_evsel *, struct _object *, struct _object *)’} to \
‘PyObject * (*)(PyObject *, PyObject *)’ {aka ‘struct _object * (*)(struct _objeuct \
_object *)’} [-Werror=cast-function-type]
.ml_meth = (PyCFunction)pyrf_evsel__open,
The problem with the PyMethodDef::ml_meth callback is that its type is
determined based on the PyMethodDef::ml_flags value, which we set as
METH_VARARGS | METH_KEYWORDS.
That indicates that the callback is expecting an extra PyObject* arg, and is
actually PyCFunctionWithKeywords type, but the base PyMethodDef::ml_meth type
stays PyCFunction.
Previous gccs did not find this, gcc8 now does. Fixing this by silencing this
warning for python.c build.
Commiter notes:
Do not do that for CC=clang, as it breaks the build in some clang
versions, like the ones in fedora up to fedora27:
fedora:25:error: unknown warning option '-Wno-cast-function-type'; did you mean '-Wno-bad-function-cast'? [-Werror,-Wunknown-warning-option]
fedora:26:error: unknown warning option '-Wno-cast-function-type'; did you mean '-Wno-bad-function-cast'? [-Werror,-Wunknown-warning-option]
fedora:27:error: unknown warning option '-Wno-cast-function-type'; did you mean '-Wno-bad-function-cast'? [-Werror,-Wunknown-warning-option]
#
those have:
clang version 3.9.1 (tags/RELEASE_391/final)
The one in rawhide accepts that:
clang version 6.0.0 (tags/RELEASE_600/final)
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Link: http://lkml.kernel.org/r/20180319082902.4518-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
62 lines
1.9 KiB
Python
62 lines
1.9 KiB
Python
#!/usr/bin/python
|
|
|
|
from os import getenv
|
|
|
|
cc = getenv("CC")
|
|
if cc == "clang":
|
|
from _sysconfigdata import build_time_vars
|
|
from re import sub
|
|
build_time_vars["CFLAGS"] = sub("-specs=[^ ]+", "", build_time_vars["CFLAGS"])
|
|
|
|
from distutils.core import setup, Extension
|
|
|
|
from distutils.command.build_ext import build_ext as _build_ext
|
|
from distutils.command.install_lib import install_lib as _install_lib
|
|
|
|
class build_ext(_build_ext):
|
|
def finalize_options(self):
|
|
_build_ext.finalize_options(self)
|
|
self.build_lib = build_lib
|
|
self.build_temp = build_tmp
|
|
|
|
class install_lib(_install_lib):
|
|
def finalize_options(self):
|
|
_install_lib.finalize_options(self)
|
|
self.build_dir = build_lib
|
|
|
|
|
|
cflags = getenv('CFLAGS', '').split()
|
|
# switch off several checks (need to be at the end of cflags list)
|
|
cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter' ]
|
|
if cc != "clang":
|
|
cflags += ['-Wno-cast-function-type' ]
|
|
|
|
src_perf = getenv('srctree') + '/tools/perf'
|
|
build_lib = getenv('PYTHON_EXTBUILD_LIB')
|
|
build_tmp = getenv('PYTHON_EXTBUILD_TMP')
|
|
libtraceevent = getenv('LIBTRACEEVENT')
|
|
libapikfs = getenv('LIBAPI')
|
|
|
|
ext_sources = [f.strip() for f in open('util/python-ext-sources')
|
|
if len(f.strip()) > 0 and f[0] != '#']
|
|
|
|
# use full paths with source files
|
|
ext_sources = list(map(lambda x: '%s/%s' % (src_perf, x) , ext_sources))
|
|
|
|
perf = Extension('perf',
|
|
sources = ext_sources,
|
|
include_dirs = ['util/include'],
|
|
extra_compile_args = cflags,
|
|
extra_objects = [libtraceevent, libapikfs],
|
|
)
|
|
|
|
setup(name='perf',
|
|
version='0.1',
|
|
description='Interface with the Linux profiling infrastructure',
|
|
author='Arnaldo Carvalho de Melo',
|
|
author_email='acme@redhat.com',
|
|
license='GPLv2',
|
|
url='http://perf.wiki.kernel.org',
|
|
ext_modules=[perf],
|
|
cmdclass={'build_ext': build_ext, 'install_lib': install_lib})
|