perf llvm: Add debug hint message about missing kernel-devel package
To help in debugging, add this extra message: detect_kbuild_dir: Couldn't find "/lib/modules/5.4.20-200.fc31.x86_64/build/include/generated/autoconf.h", missing kernel-devel package?. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -265,6 +265,8 @@ static int detect_kbuild_dir(char **kbuild_dir)
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return -ENOMEM;
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return -ENOMEM;
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return 0;
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return 0;
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}
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}
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pr_debug("%s: Couldn't find \"%s\", missing kernel-devel package?.\n",
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__func__, autoconf_path);
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free(autoconf_path);
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free(autoconf_path);
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return -ENOENT;
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return -ENOENT;
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}
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}
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