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perf python: Remove -fstack-protector-strong if clang doesn't have it
Some distros put -fstack-protector-strong in the compiler flags to be used to build python extensions, but then, the clang version in that distro doesn't know about that, only gcc does. Check if that is the case and remove it from the set of options used to build the python binding with clang. Case at hand: oraclelinux:7 $ head -2 /etc/os-release NAME="Oracle Linux Server" VERSION="7.6" $ grep stack-protector /usr/lib64/python2.7/_sysconfigdata.py | head -1 | cut -c-120 'CFLAGS': '-fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --para $ gcc version 4.8.5 20150623 (Red Hat 4.8.5-36.0.1) (GCC) clang version 3.4.2 (tags/RELEASE_34/dot2-final) clang: error: unknown argument: '-fstack-protector-strong' clang: error: unknown argument: '-fstack-protector-strong' error: command 'clang' failed with exit status 1 cp: cannot stat '/tmp/build/perf/python_ext_build/lib/perf*.so': No such file or directory make[2]: *** [/tmp/build/perf/python/perf.so] Error 1 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-brmp2415zxpbhz45etkgjoma@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -17,6 +17,8 @@ if cc == "clang":
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vars[var] = sub("-fcf-protection", "", vars[var])
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if not clang_has_option("-fstack-clash-protection"):
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vars[var] = sub("-fstack-clash-protection", "", vars[var])
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if not clang_has_option("-fstack-protector-strong"):
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vars[var] = sub("-fstack-protector-strong", "", vars[var])
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from distutils.core import setup, Extension
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