README
author johnc
Fri, 01 Oct 2010 18:23:16 -0700
changeset 6766 839211600ad0
parent 0 fd16c54261b3
child 7360 39aa1820e934
permissions -rw-r--r--
6983311: G1: LoopTest hangs when run with -XX:+ExplicitInvokesConcurrent Summary: Clear the concurrent marking "in progress" flag while the FullGCCount_lock is held. This avoids a race that can cause back to back System.gc() calls, when ExplicitGCInvokesConcurrent is enabled, to fail to initiate a marking cycle causing the requesting thread to hang. Reviewed-by: tonyp, ysr
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README:
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  This file should be located at the top of the OpenJDK Mercurial repository
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  forest. This top or enclosing repository will include a "make" directory,
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  and a Makefile at the very top of the repository.
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  It should also include the 6 repositories: "jdk", "hotspot", "langtools",
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  "corba", "jaxws"  and "jaxp".
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  See http://openjdk.java.net/ for more information about the OpenJDK.
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Simple Build Instructions:
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  1. Download and install a JDK 6 from
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     http://java.sun.com/javase/downloads/index.jsp
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     Set the environment variable ALT_BOOTDIR to the location of this JDK 6.
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  2. Download and install the Binary Plugs for the most recent JDK7 from
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     http://download.java.net/openjdk/jdk7/
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     Set the environment variable ALT_BINARY_PLUGS_PATH to the location of
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     these binary plugs.
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  3. Check the sanity of doing a build with the current machine:
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       gnumake sanity
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     See README-builds.html if you run into problems.
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  4. Do a complete build of the jdk:
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       gnumake all
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     The resulting JDK image should be found in build/*/j2sdk-image
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where gnumake is GNU make 3.78.1 or newer, /usr/bin/make on Linux and
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/usr/sfw/bin/gmake or /opt/sfw/bin/gmake on Solaris.
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