linux-kernel - Re: [RFC PATCH v5 06/30] bpf tools: Open eBPF object file and do basic validation

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Message-ID: <20150603213314.GB32707@kernel.org>
Date:	Wed, 3 Jun 2015 18:33:14 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	namhyung@...nel.org, alexei.starovoitov@...il.com,
	masami.hiramatsu.pt@...achi.com, paulus@...ba.org,
	a.p.zijlstra@...llo.nl, mingo@...hat.com, jolsa@...nel.org,
	dsahern@...il.com, daniel@...earbox.net, brendan.d.gregg@...il.com,
	lizefan@...wei.com, hekuang@...wei.com, xiakaixu@...wei.com,
	linux-kernel@...r.kernel.org, pi3orama@....com
Subject: Re: [RFC PATCH v5 06/30] bpf tools: Open eBPF object file and do
 basic validation

Em Mon, Jun 01, 2015 at 07:37:52AM +0000, Wang Nan escreveu:
> This patch defines basic interface of libbpf. 'struct bpf_object' will
> be the handler of each object file. Its internal structure is hide to
> user. eBPF object files are compiled by LLVM as ELF format. In this
> patch, libelf is used to open those files, read EHDR and do basic
> validation according to e_type and e_machine.
> 
> All elf related staffs are grouped together and reside in efile field of
> 'struct bpf_object'. bpf_object__elf_finish() is introduced to clear it.
> 
> After all eBPF programs in an object file are loaded, related ELF
> information is useless. Close the object file and free those memory.
> 
> zfree() and zclose() are introduced to ensure setting NULL pointers and
> negative file descriptors after resources are released.
> 
> Signed-off-by: Wang Nan <wangnan0@...wei.com>
> Acked-by: Alexei Starovoitov <ast@...mgrid.com>

Plese do:

cd .git/hooks/
mv 

To avoid submitting patches that produce this:

[acme@...andy linux]$ am /wb/1.patch 
Applying: bpf tools: Open eBPF object file and do basic validation
/home/acme/git/linux/.git/rebase-apply/patch:98: trailing whitespace.
	
/home/acme/git/linux/.git/rebase-apply/patch:145: space before tab in indent.
 	pr_debug("loading %s\n", path);
warning: 2 lines add whitespace errors.
tools/lib/bpf/libbpf.c:130: trailing whitespace.
+	
tools/lib/bpf/libbpf.c:177: space before tab in indent.
+ 	pr_debug("loading %s\n", path);
[acme@...andy linux]$ 

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

Fixing it up this time,

- Arnaldo
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