From: 慕冬亮 <mudongliangabcd@gmail.com>
To: gdb@sourceware.org
Subject: Could not use "record btrace" even if I have Intel PT hardware feature
Date: Tue, 06 Sep 2016 14:37:00 -0000 [thread overview]
Message-ID: <CAD-N9QUz19B6Dj2J+=RZ1G4Nfjko3PZD-6_v+hVEsmfjWTR9vg@mail.gmail.com> (raw)
Dear all,
I encounter one problem when I try to leverage Intel PT to do branch tracing.
My cpu has Intel PT feature via "grep intel_pt /proc/cpuinfo".
$ grep intel_pt /proc/cpuinfo
flags : ...intel_pt...
$ gdb simple
.......
(gdb) b main
Breakpoint 1 at 0x40050c
(gdb) r
Starting program: .../Work/Projects/simple
Breakpoint 1, 0x000000000040050c in main ()
(gdb) record btrace
Target does not support branch tracing.
(gdb) record btrace pt
GDB does not support Intel Processor Trace.
--
My best regards to you.
No System Is Safe!
Dongliang Mu
next reply other threads:[~2016-09-06 14:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-06 14:37 慕冬亮 [this message]
[not found] ` <A78C989F6D9628469189715575E55B233FFB6E07@IRSMSX104.ger.corp.intel.com>
2016-09-06 16:48 ` 慕冬亮
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