From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Stephane Eranian <eranian@google.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>, Andi Kleen <andi@firstfloor.org>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Rose Belcher <cel@us.ibm.com>,
Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>,
Sonny Rao <sonnyrao@chromium.org>,
John Mccutchan <johnmccutchan@google.com>,
David Ahern <dsahern@gmail.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Pawel Moll <pawel.moll@arm.com>
Subject: Re: [PATCH v8 2/4] perf inject: add jitdump mmap injection support
Date: Thu, 4 Feb 2016 18:53:10 -0300 [thread overview]
Message-ID: <20160204215310.GB25196@kernel.org> (raw)
In-Reply-To: <CABPqkBT2vGuUhCpchhUt13AxvacDDy2RiLgBfiEqnpK5Q9NLuQ@mail.gmail.com>
Em Fri, Jan 22, 2016 at 01:22:51PM -0800, Stephane Eranian escreveu:
> On Fri, Jan 22, 2016 at 12:44 PM, Arnaldo Carvalho de Melo
> <acme@redhat.com> wrote:
> > Em Mon, Nov 30, 2015 at 10:02:21AM +0100, Stephane Eranian escreveu:
> >> This patch adds a --jit/-j option to perf inject.
> >>
> >> This options injects MMAP records into the perf.data
> >> file to cover the jitted code mmaps. It also emits
> >> ELF images for each function in the jidump file.
> >> Those images are created where the jitdump file is.
> >> The MMAP records point to that location as well.
> >>
> >> Typical flow:
> >> $ perf record -k mono -- java -agentpath:libpjvmti.so java_class
> >> $ perf inject --jit -i perf.data -o perf.data.jitted
> >> $ perf report -i perf.data.jitted
> >
> > So, it fails 'make -C tools/perf build-test', specifically the one where
> > we ask for a NO_LIBELF build, trying to fix:
> >
> I have rebase to tip.git last night. Will try your branch today.
> Will add a couple of minor adjustments and also better documentation
> on how to use it.
So, trying to continue with this, digged for instructions on how to
build this the libjvmti.so thing, figure out its java-devel (aka
java-1.8.0-openjdk-devel).
And I needed this to build it, hacky tho, as was what was there before,
BTW, what distro was it you tested this for that
update-java-alternatives to be available?
I'm keeping what I have a perf/jit branch in my git tree.
- Arnaldo
diff --git a/tools/perf/jvmti/Makefile b/tools/perf/jvmti/Makefile
index 5e46f518e045..d7005f1608d2 100644
--- a/tools/perf/jvmti/Makefile
+++ b/tools/perf/jvmti/Makefile
@@ -33,7 +33,8 @@ VLIBJVMTI=libjvmti.so.$(VERSION)
SLDFLAGS=-shared -Wl,-soname -Wl,$(VLIBJVMTI)
SOLIBEXT=so
-JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | cut -d ' ' -f 3)
+#JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | cut -d ' ' -f 3)
+JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
# -lrt required in 32-bit mode for clock_gettime()
LIBS=-lelf -lrt
INCDIR=-I $(JDIR)/include -I $(JDIR)/include/linux
next prev parent reply other threads:[~2016-02-04 21:53 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-30 9:02 [PATCH v8 0/4] perf: add support for profiling jitted code Stephane Eranian
2015-11-30 9:02 ` [PATCH v8 1/4] perf tools: add Java demangling support Stephane Eranian
2016-02-09 12:14 ` [tip:perf/core] perf symbols: " tip-bot for Stephane Eranian
2015-11-30 9:02 ` [PATCH v8 2/4] perf inject: add jitdump mmap injection support Stephane Eranian
2016-01-22 20:44 ` Arnaldo Carvalho de Melo
2016-01-22 21:22 ` Stephane Eranian
[not found] ` <20160122215542.GK4034@kernel.org>
[not found] ` <20160122220929.GL4034@kernel.org>
2016-01-22 22:10 ` Arnaldo Carvalho de Melo
2016-02-04 21:53 ` Arnaldo Carvalho de Melo [this message]
2016-02-04 23:02 ` Stephane Eranian
2016-02-05 13:47 ` Arnaldo Carvalho de Melo
2016-02-05 13:51 ` Arnaldo Carvalho de Melo
2016-02-05 13:57 ` Arnaldo Carvalho de Melo
2016-02-05 14:24 ` Arnaldo Carvalho de Melo
2016-02-08 18:53 ` Stephane Eranian
2016-02-11 22:16 ` Arnaldo Carvalho de Melo
2016-02-12 20:32 ` Stephane Eranian
2016-02-12 20:43 ` Arnaldo Carvalho de Melo
2016-02-15 2:16 ` Stephane Eranian
2016-02-15 17:14 ` Arnaldo Carvalho de Melo
2016-02-09 12:14 ` [tip:perf/core] perf build: Add libcrypto feature detection tip-bot for Stephane Eranian
2016-02-09 12:15 ` [tip:perf/core] perf inject: Make sure mmap records are ordered when injecting build_ids tip-bot for Arnaldo Carvalho de Melo
2016-02-09 12:15 ` [tip:perf/core] perf inject: Add jitdump mmap injection support tip-bot for Stephane Eranian
2015-11-30 9:02 ` [PATCH v8 3/4] perf tools: add JVMTI agent library Stephane Eranian
2016-02-09 12:16 ` [tip:perf/core] " tip-bot for Stephane Eranian
2015-11-30 9:02 ` [PATCH v8 4/4] perf/jit: add source line info support Stephane Eranian
2016-02-09 12:16 ` [tip:perf/core] perf jit: " tip-bot for Stephane Eranian
-- strict thread matches above, loose matches on Subject: below --
2016-01-22 22:13 [PATCH v8 2/4] perf inject: add jitdump mmap injection support Arnaldo Carvalho de Melo
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