linux-kernel - Re: [GIT PULL] perf updates for v4.1

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Date:	Thu, 16 Apr 2015 10:11:24 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Jiri Olsa <jolsa@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] perf updates for v4.1

Em Wed, Apr 15, 2015 at 08:48:38PM -0700, Linus Torvalds escreveu:
> On Tue, Apr 14, 2015 at 5:00 AM, Ingo Molnar <mingo@...nel.org> wrote:

> > Please pull the latest perf-core-for-linus git tree from:

> >    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-core-for-linus
 
> Hmm. I don't seem to get any annotations any more in "perf report".
> There are no error messages, I just get an empty annotation window.
 
> My test-case is just my usual
 
>     perf record -e cycles:pp make -j
 
> on a fully built kernel tree, followed by
 
>     perf report -s symbol
 
> and the percentages and function names look fine, but 'a' doesn't do
> what I expect it to do..

Strange, I tried with:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-core-for-linus

git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

And with my local trees, on:

[acme@zoo linux]$ cat /etc/fedora-release 
Fedora release 20 (Heisenbug)

Further details down, but in all those cases pressing 'a' works for me
:-\

- Arnaldo

[acme@...ux]$ rpm -q binutils-devel
binutils-devel-2.23.88.0.1-13.fc20.x86_64
[acme@zoo linux]$ rpm -q elfutils-devel
elfutils-devel-0.161-6.fc20.x86_64
[acme@zoo linux]$ 
[acme@zoo linux]$ which objdump
/usr/bin/objdump
[acme@zoo linux]$ rpm -qf /usr/bin/objdump 
binutils-2.23.88.0.1-13.fc20.x86_64
[acme@zoo linux]$

[acme@zoo linux]$ type perf
perf is hashed (/home/acme/bin/perf)
[acme@zoo linux]$ perf --version
perf version 4.0.g34c9a0
[acme@zoo linux]$ git show --oneline 34c9a0 | head -1
34c9a0ffc75a crypto: fix broken crypto_register_instance() module handling
[acme@zoo linux]$ git show --oneline torvalds/master | head -1
34c9a0ffc75a crypto: fix broken crypto_register_instance() module handling
[acme@zoo linux]$ 
[acme@zoo linux]$ ldd ~/bin/perf
	linux-vdso.so.1 =>  (0x00007ffcfec88000)
	libunwind.so.8 => /lib64/libunwind.so.8 (0x00007fd576890000)
	libunwind-x86_64.so.8 => /lib64/libunwind-x86_64.so.8 (0x00007fd576671000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fd576453000)
	librt.so.1 => /lib64/librt.so.1 (0x00007fd57624b000)
	libm.so.6 => /lib64/libm.so.6 (0x00007fd575f44000)
	libdl.so.2 => /lib64/libdl.so.2 (0x00007fd575d3f000)
	libelf.so.1 => /lib64/libelf.so.1 (0x00007fd575b29000)
	libdw.so.1 => /lib64/libdw.so.1 (0x00007fd5758e3000)
	libaudit.so.1 => /lib64/libaudit.so.1 (0x00007fd5756bb000)
	libslang.so.2 => /lib64/libslang.so.2 (0x00007fd575342000)
	libperl.so.5.18 => /lib64/libperl.so.5.18 (0x00007fd574fae000)
	libresolv.so.2 => /lib64/libresolv.so.2 (0x00007fd574d93000)
	libnsl.so.1 => /lib64/libnsl.so.1 (0x00007fd574b7a000)
	libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007fd574943000)
	libutil.so.1 => /lib64/libutil.so.1 (0x00007fd57473f000)
	libc.so.6 => /lib64/libc.so.6 (0x00007fd574381000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fd576ac6000)
	libpython2.7.so.1.0 => /lib64/libpython2.7.so.1.0 (0x00007fd573fbb000)
	libz.so.1 => /lib64/libz.so.1 (0x00007fd573da4000)
	liblzma.so.5 => /lib64/liblzma.so.5 (0x00007fd573b7f000)
	libnuma.so.1 => /lib64/libnuma.so.1 (0x00007fd573973000)
	libbz2.so.1 => /lib64/libbz2.so.1 (0x00007fd573762000)
	libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fd57354c000)
	libfreebl3.so => /lib64/libfreebl3.so (0x00007fd5732ce000)
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