Commit bab72612 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo Committed by Wen Zhiwei
Browse files

perf python: Allow checking for the existence of warning options in clang 

stable inclusion
from stable-v6.6.55
commit e334ae4a0cd5ee5e8a6a8a62047d4d89207238a1
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IB0MX4

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e334ae4a0cd5ee5e8a6a8a62047d4d89207238a1



--------------------------------

commit b81162302001f41157f6e93654aaccc30e817e2a upstream.

We'll need to check if an warning option introduced in clang 19 is
available on the clang version being used, so cover the error message
emitted when testing for a -W option.

Tested-by: default avatarSedat Dilek <sedat.dilek@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/CA+icZUVtHn8X1Tb_Y__c-WswsO0K8U9uy3r2MzKXwTA5THtL7w@mail.gmail.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarWen Zhiwei <wenzhiwei@kylinos.cn>
parent e566b311

tools/perf/util/setup.py

+1 −1
Original line number Diff line number Diff line
@@ -17,7 +17,7 @@ src_feature_tests = getenv('srctree') + '/tools/build/feature' 


def clang_has_option(option):

    cc_output = Popen([cc, cc_options + option, path.join(src_feature_tests, "test-hello.c") ], stderr=PIPE).stderr.readlines()

    return [o for o in cc_output if ((b"unknown argument" in o) or (b"is not supported" in o))] == [ ]

    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))] == [ ]



if cc_is_clang:

    from sysconfig import get_config_vars