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From: David Ahern <dsahern@gmail.com>
To: He Kuang <hekuang@huawei.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: Sat, 14 May 2016 08:43:03 -0600	[thread overview]
Message-ID: <4572f136-796d-059f-6b81-613e8f63be24@gmail.com> (raw)
In-Reply-To: <1463213965-35230-1-git-send-email-hekuang@huawei.com>

On 5/14/16 2:19 AM, He Kuang wrote:
> In the cross-platform perf record/script scenario, we need vdsos in
> buildid-cache dir and other libs in symfs dir at the same time. For
> the reason that to have every single file opened by perf is relative
> to symfs dirctory, perf skips the buildid dir if symfs is given.
>
> This patch references the buildid dir under symfs if '--symfs' is
> used, and adds new option '--dso-prefix' to specify the subdir path in
> symfs which contains the buildid dsos.

In the previous version of this patch you just wanted to drop the symfs 
check. That means there is a path that perf searches for buildid files 
and reading it worked for you. Why is adding symsfs to that path not 
enough? ie., Why do you need to specify a different location under the 
symfs?

  reply	other threads:[~2016-05-14 14:43 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 [this message]
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
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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