linux-kernel - Re: perf tools[ARM]:Not able to detect [kernel.kallsyms] dso on Qualcomm MSM 8974

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Message-ID: <538DD821.9000401@gmail.com>
Date:	Tue, 03 Jun 2014 08:13:53 -0600
From:	David Ahern <dsahern@...il.com>
To:	Prankul Garg <prankul.iiitm@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: perf tools[ARM]:Not able to detect [kernel.kallsyms] dso on Qualcomm
 MSM 8974

On 6/3/14, 8:02 AM, Prankul Garg wrote:
> Qualcomm MSM 8974 is not able to detect [kernel.kallsyms] dso either with
> Hardware or Tracepoint events while Exynos do.

Add -v to perf-record and perf-report.

And try:
perf report -D | grep kallsyms

Do you see something like:
0 0 0xd8 [0x58]: PERF_RECORD_MMAP -1/0: [0(0xffffffff9fffffff) @ 
0xffffffff81000000]: x [kernel.kallsyms]_text

David
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