Making changed to bytecodeInterpreter.cpp

[Kumar Saurav]

The crash log is attached. I checked the memory using the command "top" 
and it shows "1174016k" as free.

The "make hotspot" works if I just want to trap branches (i.e. changes 
made to bytecodeInterpreter.cpp), however, I also want to trap messages 
being printed to screen. I found that system.out.println("xyz") 
ultimately ends up in a function writeBytes, in io_util.c (path 
./openjdk-ecj/jdk/src/share/native/java/io/io_util.c). So, I want to 
include a printf in this function to confirm that I can trap 
system.out.println. Once I include this, I will have to issue make (I 
could not find any other rule which would translate changes in io_util.c 
to other dependant files).

Best Regards, Sincères Salutations, Mit Freundlichen Grüßen,
*

*Kumar Saurav*

*

On 11/05/2012 12:54 PM, Krystal Mok wrote:
> Hi Kumar,
>
> Could you post the crash log 
> (/home/icedtea6-1.11.4/openjdk/langtools/make/hs_err_pid5811.log) 
> somewhere to let people get more details?
>
> From the log in your mail it doesn't look like a JIT compiler issue. 
> This list (hotspot-compiler-dev) is for discussion on HotSpot VM's JIT 
> compilers. The problem you're hitting looks more like a zlib problem, 
> or you might be really running low on memory.
> It'll take more information on the problem to be able to redirect you 
> to a more appropriate list.
>
> BTW, when you run "make" in the main directory, it'll build the whole 
> JDK, where as running "make hotspot" will only build the VM. If the 
> latter is sufficient for you to carry on your experiment, you might 
> just want to build the VM alone and save the trouble of dealing with 
> this crash.
>
> - Kris
>
> On Tue, Nov 6, 2012 at 1:11 AM, Kumar Saurav <kumars at ncsu.edu 
> <mailto:kumars at ncsu.edu>> wrote:
>
>     Hi,
>
>     I have installed icedtea6-1.11.4 and am trying to modify
>     bytecodeInterpreter.cpp to trap branch conditions. Once I make
>     changes to trap branch conditions and try to do "make hotspot" in
>     the icedtea6-1.11.4 main directory, it works. But when I try using
>     just "make" the build stops with the following error:
>
>     -def-build-bootstrap-tool:
>
>     build-bootstrap-javac:
>     mmap failed for CEN and END part of zip file
>           [jar] error while reading original manifest in file:
>     /home/icedtea6-1.11.4/openjdk.build/langtools/build/bootstrap/lib/javac.jarnull
>     #
>     # There is insufficient memory for the Java Runtime Environment to
>     continue.
>     # Native memory allocation (malloc) failed to allocate 32756 bytes
>     for ChunkPool::allocate
>     # An error report file with more information is saved as:
>     # /home/icedtea6-1.11.4/openjdk/langtools/make/hs_err_pid5811.log
>     make[3]: *** [build] Error 1
>     make[3]: Leaving directory
>     `/home/icedtea6-1.11.4/openjdk/langtools/make'
>     make[2]: *** [langtools-build] Error 2
>     make[2]: Leaving directory `/home/icedtea6-1.11.4/openjdk'
>     make[1]: *** [build_product_image] Error 2
>     make[1]: Leaving directory `/home/icedtea6-1.11.4/openjdk'
>     make: *** [stamps/icedtea.stamp] Error 2
>
>     I read the log file and it mentioned that one of the things I
>     should try is to reduce the Java heap size. So, I used the flag
>     -Xmx256m in /acinclude.m4 but this didn't help.
>
>     Can you suggest the build process to follow if we make changes to
>     files like bytecodeInterpreter.cpp and bytecodeInterpreter.h?
>     -- 
>     Best Regards, Sincères Salutations, Mit Freundlichen Grüßen,
>     *
>
>     *Kumar Saurav*
>
>     *
>     *
>
>     **
>
>     **
>
>     Graduate Student-Computer Engineering,
>     ECE Department
>
>
>     *
>     **Mobile +1 919 931 7626
>     North Carolina State University,
>     Raleigh, NC, USA.
>
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