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> 在 2015年6月4日，下午8:40，Ingo Molnar <mi...@kernel.org> 写道： > > > * Wangnan (F) <wangn...@huawei.com> wrote: > >>> So how do you generate the .o? Why cannot the tool, if it sees that the >>> filter >>> parameter is eBPF source code, do that automatically? >> >> I think compiling on the fly is our goal, and Alexei is working on it. > > So what exact command line are you using to create the .o? > > What exactly should users type to create a simple eBPF filter profile? > I have mentioned in previous mail: Use # perf record -e bpf_source.c cmdline to create a eBPF filter from source, Use # perf record -e bpf_object.o cmdline to create a eBPF filter from object intermedia. Use # perf bpf compile bpf_source.c --kbuild=kernel-build-dir -o bpf_object.o to create the .o I think this should be enough. Currently only the second case has been implemented. Thanks. > Thanks, > > Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
