lkml.org 
[lkml]   [2017]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH x86/urgent] bpf: emulate push insns for uprobe on x86
From
From: Yonghong Song <yhs@fb.com>
Date: Wed, 8 Nov 2017 13:37:12 -0800

> Uprobe is a tracing mechanism for userspace programs.
> Typical uprobe will incur overhead of two traps.
> First trap is caused by replaced trap insn, and
> the second trap is to execute the original displaced
> insn in user space.
...

I don't understand how this is bpf related, and if it is you don't
explain it well in the commit message.

Thank you.

\
 
 \ /
  Last update: 2017-11-09 01:07    [W:1.225 / U:0.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site