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From: Hekuang <hekuang@huawei.com>
To: David Ahern <dsahern@gmail.com>, <peterz@infradead.org>,
	<mingo@redhat.com>, <acme@kernel.org>,
	<alexander.shishkin@linux.intel.com>, <jolsa@redhat.com>,
	<wangnan0@huawei.com>, <jpoimboe@redhat.com>,
	<ak@linux.intel.com>, <eranian@google.com>, <namhyung@kernel.org>,
	<adrian.hunter@intel.com>, <sukadev@linux.vnet.ibm.com>,
	<masami.hiramatsu.pt@hitachi.com>, <tumanova@linux.vnet.ibm.com>,
	<kan.liang@intel.com>, <penberg@kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs
Date: Wed, 18 May 2016 09:47:10 +0800	[thread overview]
Message-ID: <573BC99E.4020004@huawei.com> (raw)
In-Reply-To: <de9e0259-e106-0ecb-db6d-7c63c4dd441d@gmail.com>



在 2016/5/16 10:50, David Ahern 写道:
> On 5/15/16 7:30 PM, Hekuang wrote:
>> In previous patch, I use 'perf buildid-cache -a' to add vdso
>> binary into the HOST buildid dir.
>
> So 'perf buildid-cache' needs the symfs option?
>
>
With this patch 'PATCH v3 3/7 UPDATE', the tree of symfs dir is
like this:

├── debug($(dso-prefix))
│   ├── .build-id
│   │   ├── 3a
│   │   │   └── e5ba6d4e532ad529e43ccf1ce1ddf8a64a4fdd -> 
../../[kernel.kallsyms]/3ae5ba6d4e532ad529e43ccf1ce1ddf8a64a4fdd
│   │   └── 84
│   │       └── dbd75729adba57cc42f5544b25de571c0c8731 -> 
../../[vdso32]/84dbd75729adba57cc42f5544b25de571c0c8731
│   ├── [kernel.kallsyms]
│   │   └── 3ae5ba6d4e532ad529e43ccf1ce1ddf8a64a4fdd
│   ├── [vdso]
│   │   └── 84dbd75729adba57cc42f5544b25de571c0c8731
│   └── [vdso32]
│       └── 84dbd75729adba57cc42f5544b25de571c0c8731
├── lib
│   ├── ld-2.22.so
│   └── libc-2.22.so
├── tmp
│   └── hello
└── xxx

So all binaries we need are included in the symfs dir. I think
this is consistent with your idea explained in previous mails.

With this symfs, we do not need buildid dir anymore and what's
your idea on 'perf buildid-cache' needs symfs option? after all,
that only effects on buildid dir.

Thanks.

  parent reply	other threads:[~2016-05-18  1:54 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-12  8:43 [PATCH v3 0/7] Add support for remote unwind He Kuang
2016-05-12  8:43 ` [PATCH v3 1/7] perf tools: Set vdso name to vdso[64,32] depending on platform He Kuang
2016-05-12 10:06   ` Adrian Hunter
2016-05-13  8:51     ` [PATCH v3 1/7 UPDATE] perf tools: Find vdso with the consider of cross-platform He Kuang
2016-05-16 13:32       ` Arnaldo Carvalho de Melo
2016-05-17  7:34         ` Adrian Hunter
2016-05-17  7:33       ` Adrian Hunter
2016-05-17  9:04         ` [PATCH v3 1/7 UPDATE2] " He Kuang
2016-05-17  9:17           ` Adrian Hunter
2016-05-17 12:46             ` Arnaldo Carvalho de Melo
2016-06-15 13:34           ` Arnaldo Carvalho de Melo
2016-06-16  0:22             ` Hekuang
2016-06-16 13:00             ` Adrian Hunter
2016-06-16 16:33               ` Arnaldo Carvalho de Melo
2016-05-17  9:05         ` [PATCH v3 1/7 UPDATE] " Hekuang
2016-05-13  8:53     ` [PATCH v3 1/7] perf tools: Set vdso name to vdso[64,32] depending on platform Hekuang
2016-05-12  8:43 ` [PATCH v3 2/7] perf tools: Store vdso buildid unconditionally He Kuang
2016-05-12 13:09   ` Arnaldo Carvalho de Melo
2016-05-20  6:43   ` [tip:perf/urgent] perf symbols: " tip-bot for He Kuang
2016-05-12  8:43 ` [PATCH v3 3/7] perf tools: Remove the logical that skip buildid cache if symfs is given He Kuang
2016-05-12 13:09   ` Arnaldo Carvalho de Melo
2016-05-12 20:23     ` David Ahern
2016-05-12 20:33       ` Arnaldo Carvalho de Melo
2016-05-13  7:19       ` Hekuang
2016-05-13 14:27         ` David Ahern
2016-05-13 18:01           ` Arnaldo Carvalho de Melo
2016-05-14  8:19             ` [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs He Kuang
2016-05-14 14:43               ` David Ahern
2016-05-16  1:30                 ` Hekuang
2016-05-16  2:50                   ` David Ahern
2016-05-16  6:40                     ` Hekuang
2016-05-18  1:47                     ` Hekuang [this message]
2016-05-18  1:51                       ` David Ahern
2016-05-18  2:48                         ` Hekuang
2016-05-18  3:04                           ` David Ahern
2016-05-12  8:43 ` [PATCH v3 4/7] perf tools: Promote proper messages for cross-platform unwind He Kuang
2016-05-12  8:43 ` [PATCH v3 5/7] perf callchain: Add support " He Kuang
2016-05-12  8:43 ` [PATCH v3 6/7] perf callchain: Support x86 target platform He Kuang
2016-05-12  8:43 ` [PATCH v3 7/7] perf callchain: Support aarch64 cross-platform He Kuang
2016-06-22  6:57 [PATCH 0/5] Fixes on perf unwind He Kuang
2016-06-22  6:57 ` [PATCH 1/5] perf unwind: Change macro names of perf register He Kuang
2016-06-26 10:56   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 2/5] perf unwind: Fix wrongly used regs for x86_32 unwind He Kuang
2016-06-26 10:56   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 3/5] perf unwind: Fix wrongly used regs for aarch64 unwind He Kuang
2016-06-26 10:57   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 4/5] perf tools: Let python use correct gcc for build_ext He Kuang
2016-06-26 10:54   ` [tip:perf/core] " tip-bot for He Kuang
2016-06-22  6:57 ` [PATCH 5/5] perf tools: Fix NULL pointer deference when vdso not found He Kuang
2016-06-23  2:02   ` Wangnan (F)
2016-06-23  3:03     ` Hekuang
2016-06-23 12:07     ` Arnaldo Carvalho de Melo
2016-06-23 13:28       ` Arnaldo Carvalho de Melo
2016-06-26 10:55   ` [tip:perf/core] perf tools: Find right DSO taking into account if binary is 32 or 64-bit tip-bot for He Kuang
2016-06-23 13:30 ` [PATCH 0/5] Fixes on perf unwind Arnaldo Carvalho de Melo

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