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From:   Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Date:   Tue, 24 Sep 2019 16:48:31 -0300
To:     Thomas Richter <tmricht@linux.ibm.com>
Cc:     linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
        brueckner@linux.ibm.com, gor@linux.ibm.com,
        heiko.carstens@de.ibm.com
Subject: Re: [PATCH 3/3] perf/java: Add detection of java-11-openjdk-devel
 package
Message-ID: <20190924194831.GC20773@kernel.org>
References: <20190909114116.50469-1-tmricht@linux.ibm.com>
 <20190909114116.50469-4-tmricht@linux.ibm.com>
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Em Mon, Sep 09, 2019 at 01:41:16PM +0200, Thomas Richter escreveu:
> With Java 11 there is no seperate JRE anymore.
> Details: https://coderanch.com/t/701603/java/JRE-JDK
> Therefore the detection of the JRE needs to be adapted.
> 
> This change works for s390 and x86.
> I have not tested other platforms.

    Committer testing:

    Continues to work with the OpenJDK 8:

      $ rm -f ~acme/lib64/libperf-jvmti.so
      $ rpm -qa | grep jdk-devel
      java-1.8.0-openjdk-devel-1.8.0.222.b10-0.fc30.x86_64
      $ git log --oneline -1
      a51937170f33 (HEAD -> perf/core) perf build: Add detection of java-11-openjdk-devel package
      $ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf ; make -C tools/perf O=/tmp/build/perf install > /dev/null 2>1
      $ ls -la ~acme/lib64/libperf-jvmti.so
      -rwxr-xr-x. 1 acme acme 230744 Sep 24 16:46 /home/acme/lib64/libperf-jvmti.so
      $


Thanks, applied.

- Arnaldo
 
> Suggested-by: Andreas Krebbel <krebbel@linux.ibm.com>
> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
> ---
>  tools/perf/Makefile.config | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> index 89ac5a1f1550..3da374911852 100644
> --- a/tools/perf/Makefile.config
> +++ b/tools/perf/Makefile.config
> @@ -908,7 +908,7 @@ ifndef NO_JVMTI
>      JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
>    else
>      ifneq (,$(wildcard /usr/sbin/alternatives))
> -      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
> +      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
>      endif
>    endif
>    ifndef JDIR
> -- 
> 2.21.0

-- 

- Arnaldo