linux-kernel - Re: [RFC PATCH v8 47/49] perf tools: Generate prologue for BPF programs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <558D0FE8.4010907@plumgrid.com>
Date:	Fri, 26 Jun 2015 01:40:08 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Wang Nan <wangnan0@...wei.com>, acme@...nel.org,
	brendan.d.gregg@...il.com, daniel@...earbox.net,
	namhyung@...nel.org, masami.hiramatsu.pt@...achi.com,
	paulus@...ba.org, a.p.zijlstra@...llo.nl, mingo@...hat.com,
	jolsa@...nel.org, dsahern@...il.com
CC:	linux-kernel@...r.kernel.org, lizefan@...wei.com,
	hekuang@...wei.com, xiakaixu@...wei.com, pi3orama@....com
Subject: Re: [RFC PATCH v8 47/49] perf tools: Generate prologue for BPF programs

On 6/24/15 5:31 AM, Wang Nan wrote:
> This patch generates prologue for each 'struct probe_trace_event' for
> fetching arguments for BPF programs.
>
> After bpf__probe(), iterate over each programs to check whether
> prologue is required. If non of tev have argument, simply skip
> preprocessor hooking. For those who prologue is required, calls
> bpf__gen_prologue() and paste original instruction after prologue.

please don't abbreviate tev, pev in commit logs. It's hard to read
for anyone but core perf experts.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/