From: Frederic Weisbecker <fweisbec@gmail.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: acme@redhat.com, a.p.zijlstra@chello.nl, mingo@elte.hu,
paulus@samba.org, cjashfor@linux.vnet.ibm.com,
eranian@google.com, gorcunov@openvz.org, tzanussi@gmail.com,
mhiramat@redhat.com, robert.richter@amd.com, fche@redhat.com,
linux-kernel@vger.kernel.org, masami.hiramatsu.pt@hitachi.com,
drepper@gmail.com, asharma@fb.com,
benjamin.redelings@nescent.org
Subject: Re: [PATCH 02/17] perf: Add ability to attach user level registers dump to sample
Date: Wed, 25 Jul 2012 18:13:06 +0200 [thread overview]
Message-ID: <20120725161302.GC1173@somewhere.redhat.com> (raw)
In-Reply-To: <1342959280-5361-3-git-send-email-jolsa@redhat.com>
On Sun, Jul 22, 2012 at 02:14:25PM +0200, Jiri Olsa wrote:
> Introducing PERF_SAMPLE_REGS_USER sample type bit to trigger
> the dump of user level registers on sample. Registers we want
> to dump are specified by sample_regs_user bitmask.
>
> Only user level registers are dumped at the moment. Meaning the
> register values of the user space context as it was before the
> user entered the kernel for whatever reason (syscall, irq,
> exception, or a PMI happening in userspace).
>
> The layout of the sample_regs_user bitmap is described in
> asm/perf_regs.h for archs that support register dump.
>
> This is going to be useful to bring Dwarf CFI based stack
> unwinding on top of samples.
>
> Signed-off-by: Jiri Olsa <jolsa@redhat.com>
> Original-patch-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
next prev parent reply other threads:[~2012-07-25 16:13 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-22 12:14 [PATCHv7 00/17] perf: Add backtrace post dwarf unwind Jiri Olsa
2012-07-22 12:14 ` [PATCH 01/17] perf: Unified API to record selective sets of arch registers Jiri Olsa
2012-07-25 16:12 ` Frederic Weisbecker
2012-07-26 17:51 ` Arnaldo Carvalho de Melo
2012-07-29 22:45 ` Paul Mackerras
2012-07-22 12:14 ` [PATCH 02/17] perf: Add ability to attach user level registers dump to sample Jiri Olsa
2012-07-25 16:13 ` Frederic Weisbecker [this message]
2012-07-25 17:00 ` Arnaldo Carvalho de Melo
2012-07-25 17:39 ` Stephane Eranian
2012-07-25 18:27 ` Jiri Olsa
2012-07-26 17:42 ` Stephane Eranian
2012-07-26 17:58 ` Jiri Olsa
2012-07-22 12:14 ` [PATCH 03/17] perf, x86: Add copy_from_user_nmi_nochk for best effort copy Jiri Olsa
2012-07-25 16:11 ` Frederic Weisbecker
2012-07-25 17:16 ` Jiri Olsa
2012-07-25 17:25 ` Frederic Weisbecker
2012-07-25 17:30 ` Jiri Olsa
2012-07-25 17:35 ` Frederic Weisbecker
2012-08-02 18:47 ` Andy Lutomirski
2012-08-03 11:12 ` Jiri Olsa
2012-07-22 12:14 ` [PATCH 04/17] perf: Factor __output_copy to be usable with specific copy function Jiri Olsa
2012-07-22 12:14 ` [PATCH 05/17] perf: Add perf_output_skip function to skip bytes in sample Jiri Olsa
2012-07-22 12:14 ` [PATCH 06/17] perf: Add ability to attach user stack dump to sample Jiri Olsa
2012-07-25 16:36 ` Frederic Weisbecker
2012-07-25 17:03 ` Jiri Olsa
2012-07-22 12:14 ` [PATCH 07/17] perf: Add attribute to filter out callchains Jiri Olsa
2012-07-22 12:14 ` [PATCH 08/17] perf, tool: Adding PERF_ATTR_SIZE_VER2 to the header swap check Jiri Olsa
2012-07-22 12:14 ` [PATCH 09/17] perf, tool: Factor DSO symtab types to generic binary types Jiri Olsa
2012-07-25 19:24 ` [tip:perf/core] perf symbols: " tip-bot for Jiri Olsa
2012-07-22 12:14 ` [PATCH 10/17] perf, tool: Add interface to read DSO image data Jiri Olsa
2012-07-25 19:25 ` [tip:perf/core] perf symbols: " tip-bot for Jiri Olsa
2012-07-22 12:14 ` [PATCH 11/17] perf, tool: Add interface to arch registers sets Jiri Olsa
2012-07-22 12:14 ` [PATCH 12/17] perf, tool: Add libunwind dependency for dwarf cfi unwinding Jiri Olsa
2012-07-22 12:14 ` [PATCH 13/17] perf, tool: Support user regs and stack in sample parsing Jiri Olsa
2012-07-22 12:14 ` [PATCH 14/17] perf, tool: Support for dwarf cfi unwinding on post processing Jiri Olsa
2012-07-25 17:05 ` Frederic Weisbecker
2012-07-25 17:16 ` Arnaldo Carvalho de Melo
2012-07-25 17:21 ` Frederic Weisbecker
2012-07-22 12:14 ` [PATCH 15/17] perf, tool: Support for dwarf mode callchain on perf record Jiri Olsa
2012-07-22 12:14 ` [PATCH 16/17] perf, tool: Add dso data caching Jiri Olsa
2012-07-25 17:11 ` Frederic Weisbecker
2012-07-25 19:26 ` [tip:perf/core] perf symbols: " tip-bot for Jiri Olsa
2012-07-22 12:14 ` [PATCH 17/17] perf, tool: Add dso data caching tests Jiri Olsa
2012-07-25 19:28 ` [tip:perf/core] perf test: " tip-bot for Jiri Olsa
2012-07-25 17:15 ` [PATCHv7 00/17] perf: Add backtrace post dwarf unwind Frederic Weisbecker
2012-07-25 17:19 ` Ingo Molnar
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