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From: Mark Wielaard <mark@klomp.org>
To: Milian Wolff <mail@milianw.de>, elfutils-devel@sourceware.org
Cc: Ulf Hermann <ulf.hermann@qt.io>,
	Christoph Sterz <christoph.sterz@kdab.com>
Subject: Re: Handling pgoff in perf elf mmap/mmap2 elf info
Date: Mon, 15 Oct 2018 21:05:00 -0000	[thread overview]
Message-ID: <1539637492.4578.20.camel@klomp.org> (raw)
In-Reply-To: <4862287.LsxLGO1v19@agathebauer>

Hi Milian,

On Mon, 2018-10-15 at 22:38 +0200, Milian Wolff wrote:
> here's one example of mmap events recorded by perf:
> 
> 0x7fac5ec0b000 to 0x7fac5ed9a000, len =   0x18f000, offset =                0   
> r--p    /usr/lib/libstdc++.so.6.0.25
> 0x7fac5ec94000 to 0x7fac5ed8a000, len =    0xf6000, offset =          0x89000   
> ---p    /usr/lib/libstdc++.so.6.0.25
> 0x7fac5ec94000 to 0x7fac5ed4c000, len =    0xb8000, offset =          0x89000   
> r-xp    /usr/lib/libstdc++.so.6.0.25
> 0x7fac5ed4c000 to 0x7fac5ed89000, len =    0x3d000, offset =         0x141000   
> r--p    /usr/lib/libstdc++.so.6.0.25
> 0x7fac5ed8a000 to 0x7fac5ed97000, len =     0xd000, offset =         0x17e000   
> rw-p    /usr/lib/libstdc++.so.6.0.25

Could you also post the matching phdr output for the file?
eu-readelf -l /usr/lib/libstdc++.so.6.0.25 should show it.
That way we can see how the PT_LOAD segments map to the mmap events.

Thanks,

Mark

  reply	other threads:[~2018-10-15 21:05 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-19 12:12 Christoph Sterz
2018-09-19 12:24 ` Ulf Hermann
2018-09-21 13:07   ` Mark Wielaard
2018-09-21 13:35     ` Ulf Hermann
2018-09-26 14:38     ` Milian Wolff
2018-10-09 20:33       ` Milian Wolff
2018-10-11 17:02         ` Ulf Hermann
2018-10-11 17:37           ` Mark Wielaard
2018-10-11 18:14             ` Milian Wolff
2018-10-15 20:39               ` Milian Wolff
2018-10-15 21:05                 ` Mark Wielaard [this message]
2018-10-15 21:06                   ` Milian Wolff
2018-10-17 14:52                     ` Milian Wolff
2018-10-17 22:26                       ` Mark Wielaard
2018-10-18  7:41                 ` Ulf Hermann
2018-10-20 10:49                 ` Milian Wolff
2018-10-15 20:48               ` Milian Wolff

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