1from os import getenv, path 2from subprocess import Popen, PIPE 3from re import sub 4 5cc = getenv("CC") 6 7# Check if CC has options, as is the case in yocto, where it uses CC="cc --sysroot..." 8cc_tokens = cc.split() 9if len(cc_tokens) > 1: 10 cc = cc_tokens[0] 11 cc_options = " ".join([str(e) for e in cc_tokens[1:]]) + " " 12else: 13 cc_options = "" 14 15cc_is_clang = b"clang version" in Popen([cc, "-v"], stderr=PIPE).stderr.readline() 16src_feature_tests = getenv('srctree') + '/tools/build/feature' 17 18def clang_has_option(option): 19 cc_output = Popen([cc, cc_options + option, path.join(src_feature_tests, "test-hello.c") ], stderr=PIPE).stderr.readlines() 20 return [o for o in cc_output if ((b"unknown argument" in o) or (b"is not supported" in o))] == [ ] 21 22if cc_is_clang: 23 from sysconfig import get_config_vars 24 vars = get_config_vars() 25 for var in ('CFLAGS', 'OPT'): 26 vars[var] = sub("-specs=[^ ]+", "", vars[var]) 27 if not clang_has_option("-mcet"): 28 vars[var] = sub("-mcet", "", vars[var]) 29 if not clang_has_option("-fcf-protection"): 30 vars[var] = sub("-fcf-protection", "", vars[var]) 31 if not clang_has_option("-fstack-clash-protection"): 32 vars[var] = sub("-fstack-clash-protection", "", vars[var]) 33 if not clang_has_option("-fstack-protector-strong"): 34 vars[var] = sub("-fstack-protector-strong", "", vars[var]) 35 if not clang_has_option("-fno-semantic-interposition"): 36 vars[var] = sub("-fno-semantic-interposition", "", vars[var]) 37 if not clang_has_option("-ffat-lto-objects"): 38 vars[var] = sub("-ffat-lto-objects", "", vars[var]) 39 if not clang_has_option("-ftree-loop-distribute-patterns"): 40 vars[var] = sub("-ftree-loop-distribute-patterns", "", vars[var]) 41 if not clang_has_option("-gno-variable-location-views"): 42 vars[var] = sub("-gno-variable-location-views", "", vars[var]) 43 44from setuptools import setup, Extension 45 46from setuptools.command.build_ext import build_ext as _build_ext 47from setuptools.command.install_lib import install_lib as _install_lib 48 49class build_ext(_build_ext): 50 def finalize_options(self): 51 _build_ext.finalize_options(self) 52 self.build_lib = build_lib 53 self.build_temp = build_tmp 54 55class install_lib(_install_lib): 56 def finalize_options(self): 57 _install_lib.finalize_options(self) 58 self.build_dir = build_lib 59 60 61cflags = getenv('CFLAGS', '').split() 62# switch off several checks (need to be at the end of cflags list) 63cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter', '-Wno-redundant-decls' ] 64if cc_is_clang: 65 cflags += ["-Wno-unused-command-line-argument" ] 66else: 67 cflags += ['-Wno-cast-function-type' ] 68 69# The python headers have mixed code with declarations (decls after asserts, for instance) 70cflags += [ "-Wno-declaration-after-statement" ] 71 72src_perf = getenv('srctree') + '/tools/perf' 73build_lib = getenv('PYTHON_EXTBUILD_LIB') 74build_tmp = getenv('PYTHON_EXTBUILD_TMP') 75 76perf = Extension('perf', 77 sources = [ src_perf + '/util/python.c' ], 78 include_dirs = ['util/include'], 79 extra_compile_args = cflags, 80 ) 81 82setup(name='perf', 83 version='0.1', 84 description='Interface with the Linux profiling infrastructure', 85 author='Arnaldo Carvalho de Melo', 86 author_email='acme@redhat.com', 87 license='GPLv2', 88 url='http://perf.wiki.kernel.org', 89 ext_modules=[perf], 90 cmdclass={'build_ext': build_ext, 'install_lib': install_lib}) 91