1from os import getenv, path 2from subprocess import Popen, PIPE 3from re import sub 4import shlex 5 6cc = getenv("CC") 7assert cc, "Environment variable CC not set" 8 9# Check if CC has options, as is the case in yocto, where it uses CC="cc --sysroot..." 10cc_tokens = cc.split() 11if len(cc_tokens) > 1: 12 cc = cc_tokens[0] 13 cc_options = " ".join([str(e) for e in cc_tokens[1:]]) + " " 14else: 15 cc_options = "" 16 17# ignore optional stderr could be None as it is set to PIPE to avoid that. 18# mypy: disable-error-code="union-attr" 19cc_is_clang = b"clang version" in Popen([cc, "-v"], stderr=PIPE).stderr.readline() 20 21srctree = getenv('srctree') 22assert srctree, "Environment variable srctree, for the Linux sources, not set" 23src_feature_tests = f'{srctree}/tools/build/feature' 24 25def clang_has_option(option): 26 cmd = shlex.split(f"{cc} {cc_options} {option}") 27 cmd.append(path.join(src_feature_tests, "test-hello.c")) 28 cc_output = Popen(cmd, stderr=PIPE).stderr.readlines() 29 return [o for o in cc_output if ((b"unknown argument" in o) or (b"is not supported" in o) or (b"unknown warning option" in o))] == [ ] 30 31if cc_is_clang: 32 from sysconfig import get_config_vars 33 vars = get_config_vars() 34 for var in ('CFLAGS', 'OPT'): 35 vars[var] = sub("-specs=[^ ]+", "", vars[var]) 36 if not clang_has_option("-mcet"): 37 vars[var] = sub("-mcet", "", vars[var]) 38 if not clang_has_option("-fcf-protection"): 39 vars[var] = sub("-fcf-protection", "", vars[var]) 40 if not clang_has_option("-fstack-clash-protection"): 41 vars[var] = sub("-fstack-clash-protection", "", vars[var]) 42 if not clang_has_option("-fstack-protector-strong"): 43 vars[var] = sub("-fstack-protector-strong", "", vars[var]) 44 if not clang_has_option("-fno-semantic-interposition"): 45 vars[var] = sub("-fno-semantic-interposition", "", vars[var]) 46 if not clang_has_option("-ffat-lto-objects"): 47 vars[var] = sub("-ffat-lto-objects", "", vars[var]) 48 if not clang_has_option("-ftree-loop-distribute-patterns"): 49 vars[var] = sub("-ftree-loop-distribute-patterns", "", vars[var]) 50 if not clang_has_option("-gno-variable-location-views"): 51 vars[var] = sub("-gno-variable-location-views", "", vars[var]) 52 53from setuptools import setup, Extension 54 55from setuptools.command.build_ext import build_ext as _build_ext 56from setuptools.command.install_lib import install_lib as _install_lib 57 58class build_ext(_build_ext): 59 def finalize_options(self): 60 _build_ext.finalize_options(self) 61 self.build_lib = build_lib 62 self.build_temp = build_tmp 63 64class install_lib(_install_lib): 65 def finalize_options(self): 66 _install_lib.finalize_options(self) 67 self.build_dir = build_lib 68 69 70cflags = getenv('CFLAGS', '').split() 71# switch off several checks (need to be at the end of cflags list) 72cflags += ['-fno-strict-aliasing', '-Wno-write-strings', '-Wno-unused-parameter', '-Wno-redundant-decls' ] 73if cc_is_clang: 74 cflags += ["-Wno-unused-command-line-argument" ] 75 if clang_has_option("-Wno-cast-function-type-mismatch"): 76 cflags += ["-Wno-cast-function-type-mismatch" ] 77else: 78 cflags += ['-Wno-cast-function-type' ] 79 80# The python headers have mixed code with declarations (decls after asserts, for instance) 81cflags += [ "-Wno-declaration-after-statement" ] 82 83src_perf = f'{srctree}/tools/perf' 84build_lib = getenv('PYTHON_EXTBUILD_LIB') 85build_tmp = getenv('PYTHON_EXTBUILD_TMP') 86 87perf = Extension('perf', 88 sources = [ src_perf + '/util/python.c' ], 89 include_dirs = ['util/include'], 90 extra_compile_args = cflags, 91 ) 92 93setup(name='perf', 94 version='0.1', 95 description='Interface with the Linux profiling infrastructure', 96 author='Arnaldo Carvalho de Melo', 97 author_email='acme@redhat.com', 98 license='GPLv2', 99 url='http://perf.wiki.kernel.org', 100 ext_modules=[perf], 101 cmdclass={'build_ext': build_ext, 'install_lib': install_lib}) 102