Messages in this thread | | | Date | Thu, 09 Nov 2017 09:06:47 +0900 (KST) | Subject | Re: [PATCH x86/urgent] bpf: emulate push insns for uprobe on x86 | From | David Miller <> |
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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.
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