From: xiakaixu <xiakaixu@huawei.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Cc: paulus@samba.org, Ingo Molnar <mingo@kernel.org>,
a.p.zijlstra@chello.nl,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>, Borislav Petkov <bp@alien8.de>,
Namhyung Kim <namhyung@kernel.org>,
Huxinwei <huxinwei@huawei.com>,
peifeiyue@huawei.com
Subject: Does perf support different length of user-space hw_breakpoint?
Date: Mon, 12 May 2014 15:52:54 +0800 [thread overview]
Message-ID: <53707DD6.2000108@huawei.com> (raw)
Hi guys,
Does perf support different length of user-space hw_breakpoint,
such as HW_BREAKPOINT_LEN_1/HW_BREAKPOINT_LEN_2/HW_BREAKPOINT_LEN_4/
HW_BREAKPOINT_LEN_8?
Seems perf only support HW_BREAKPOINT_LEN_4/sizeof(long)
by default from the source code and simple test.
May I have your opinions if I want to trace different bytes of
hw_breakpoint addr?
Thanks,
Xia Kaixu
next reply other threads:[~2014-05-12 7:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 7:52 xiakaixu [this message]
2014-05-12 8:05 ` Does perf support different length of user-space hw_breakpoint? Peter Zijlstra
[not found] ` <CAGjdHukwC3cu3YOSSteXsC4_52m-YTdAAYCfXV+q5A2pnW+CKQ@mail.gmail.com>
2014-05-12 8:48 ` Peter Zijlstra
2014-05-12 9:00 ` xiakaixu
2014-05-13 11:38 ` xiakaixu
2014-05-13 12:00 ` Jiri Olsa
2014-05-13 15:06 ` Frederic Weisbecker
2014-05-14 2:55 ` xiakaixu
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