Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752211AbbLND2S (ORCPT ); Sun, 13 Dec 2015 22:28:18 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:16009 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750838AbbLND2Q (ORCPT ); Sun, 13 Dec 2015 22:28:16 -0500 Message-ID: <566E3728.2090306@huawei.com> Date: Mon, 14 Dec 2015 11:27:36 +0800 From: "Wangnan (F)" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Alexei Starovoitov , pi3orama CC: Arnaldo Carvalho de Melo , , , , , Alexei Starovoitov , Masami Hiramatsu Subject: Re: [PATCH v4 09/16] perf tools: Enable indices setting syntax for BPF maps References: <1449541544-67621-1-git-send-email-wangnan0@huawei.com> <1449541544-67621-10-git-send-email-wangnan0@huawei.com> <20151211121145.GP17996@kernel.org> <20151211121521.GQ17996@kernel.org> <20151211182157.GC59096@ast-mbp.thefacebook.com> In-Reply-To: <20151211182157.GC59096@ast-mbp.thefacebook.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.111.66.109] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020203.566E3745.0046,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 73d83382a4f202753780ff66bd3688e6 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1479 Lines: 41 On 2015/12/12 2:21, Alexei Starovoitov wrote: > On Fri, Dec 11, 2015 at 08:39:35PM +0800, pi3orama wrote: >>> static u64 (*bpf_ktime_get_ns)(void) = >>> (void *)5; >>> static int (*bpf_trace_printk)(const char *fmt, int fmt_size, ...) = >>> (void *)6; >>> static int (*bpf_get_smp_processor_id)(void) = >>> (void *)8; >>> static int (*bpf_perf_event_output)(void *, struct bpf_map_def *, int, >>> void *, unsigned long) = >>> (void *)23; >>> >>> Where can I get this magical mistery table? Could this be hidden away in >>> some .h file automagically included in bpf scriptlets so that n00bies >>> like me don't have to be wtf'ing? >>> >> They are function numbers defined in bpf.h and bpf-common.h, but they are Linux >> headers. Directly include them causes many error for llvm. Also, the function >> prototypes are BPF specific and can't included in Linux source. We should have >> a place holds those indices and prototypes together. > wait, what kind of errors? > they are in uapi, so gets installed into /usr/include eventually > and I haven't seen any erros either with gcc or clang. > Sorry. I saw error because I use #include It is okay if I use #include Thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/