Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs

From	David Ahern <dsahern@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs
Date	2016-05-14 16:50 +0200
Message-ID	<ryJ3c-2kb-3@gated-at.bofh.it> (permalink)
References	<rypHc-py-17@gated-at.bofh.it> <ryD7r-5hB-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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?

Thread

Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid  cache if symfs is given Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-12 15:10 +0200
  Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid  cache if symfs is given David Ahern <dsahern@gmail.com> - 2016-05-12 22:30 +0200
    Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid  cache if symfs is given Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-12 22:40 +0200
    Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid  cache if symfs is given Hekuang <hekuang@huawei.com> - 2016-05-13 09:30 +0200
      Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid  cache if symfs is given David Ahern <dsahern@gmail.com> - 2016-05-13 16:30 +0200
        Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid  cache if symfs is given Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-13 20:10 +0200
          [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of buildid dsos under symfs He Kuang <hekuang@huawei.com> - 2016-05-14 10:30 +0200
            Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs David Ahern <dsahern@gmail.com> - 2016-05-14 16:50 +0200
              Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs Hekuang <hekuang@huawei.com> - 2016-05-16 04:10 +0200
                Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs David Ahern <dsahern@gmail.com> - 2016-05-16 05:00 +0200
                Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs Hekuang <hekuang@huawei.com> - 2016-05-16 08:50 +0200
                Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs Hekuang <hekuang@huawei.com> - 2016-05-18 04:00 +0200
                Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs David Ahern <dsahern@gmail.com> - 2016-05-18 04:00 +0200
                Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs Hekuang <hekuang@huawei.com> - 2016-05-18 05:00 +0200
                Re: [PATCH v3 3/7 UPDATE] perf tools: Add option for the path of  buildid dsos under symfs David Ahern <dsahern@gmail.com> - 2016-05-18 05:10 +0200

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