linux-kernel - Re: [PATCH] trace_uprobe: Display correct offset in uprobe

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Message-ID: <20180119110446.3d040c5f@gandalf.local.home>
Date:   Fri, 19 Jan 2018 11:04:46 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Cc:     mingo@...hat.com, oleg@...hat.com, srikar@...ux.vnet.ibm.com,
        linux-kernel@...r.kernel.org, namhyung@...nel.org
Subject: Re: [PATCH] trace_uprobe: Display correct offset in uprobe_events

On Sat,  6 Jan 2018 11:12:46 +0530
Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com> wrote:

> Recently, how the pointers being printed with %p has been changed
> by commit ad67b74d2469 ("printk: hash addresses printed with %p").
> This is causing a regression while showing offset in the
> uprobe_events file. Instead of %p, use %px to display offset.
> 
> Before patch:
> 
>   # perf probe -vv -x /tmp/a.out main
>   Opening /sys/kernel/debug/tracing//uprobe_events write=1
>   Writing event: p:probe_a/main /tmp/a.out:0x58c
> 
>   # cat /sys/kernel/debug/tracing/uprobe_events
>   p:probe_a/main /tmp/a.out:0x0000000049a0f352
> 
> After patch:
> 
>   # cat /sys/kernel/debug/tracing/uprobe_events
>   p:probe_a/main /tmp/a.out:0x000000000000058c
> 

Thanks, I'll pull this into my tree.

-- Steve