Re: [rvm-core] [rvm-commits] SF.net SVN: jikesrvm:[15399] rvmroot/branches/RVM-PureNativeThread/ optPhase1/rvm/src

> Revision: 15399
>          http://jikesrvm.svn.sourceforge.net/jikesrvm/?rev=15399&view=rev
> Author:   pizlo
> Date:     2009-02-07 06:29:26 +0000 (Sat, 07 Feb 2009)
>
> Log Message:
> -----------
> added JNI call tracing
>
> Modified Paths:
> --------------
>    rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src/org/jikesrvm/jni/JNIEnvironment.java
>    rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src-generated/options/BooleanOptions.vm.dat
>
> Modified: rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src/org/jikesrvm/jni/JNIEnvironment.java
> ===================================================================
> --- rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src/org/jikesrvm/jni/JNIEnvironment.java        2009-02-07 05:40:10 UTC (rev 15398)
> +++ rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src/org/jikesrvm/jni/JNIEnvironment.java        2009-02-07 06:29:26 UTC (rev 15399)
> @@ -15,6 +15,8 @@
>  import org.jikesrvm.VM;
>  import org.jikesrvm.SizeConstants;
>  import org.jikesrvm.mm.mminterface.MemoryManager;
> +import org.jikesrvm.classloader.RVMMethod;
> +import org.jikesrvm.compilers.common.CompiledMethods;
>  import org.jikesrvm.runtime.Entrypoints;
>  import org.jikesrvm.runtime.Magic;
>  import org.jikesrvm.runtime.RuntimeEntrypoints;
> @@ -338,6 +340,18 @@
>     Address callersFP = Magic.getCallerFramePointer(Magic.getFramePointer());
>     basePointerOnEntryToNative = callersFP; // NB old value saved on call stack
>     JNITopJavaFP = callersFP;
> +
> +    if (VM.traceJNI) {
> +      RVMMethod m=
> +        CompiledMethods.getCompiledMethod(
> +          Magic.getCompiledMethodID(callersFP)).getMethod();
> +      VM.sysWrite("calling JNI from ");
> +      VM.sysWrite(m.getDeclaringClass().getDescriptor());
> +      VM.sysWrite(" ");
> +      VM.sysWrite(m.getName());
> +      VM.sysWrite(m.getDescriptor());
> +      VM.sysWriteln();
> +    }
>
>     // Save current JNI ref stack pointer
>     int oldJNIRefsSavedFP = JNIRefsSavedFP;
> @@ -405,7 +419,7 @@
>     }
>     return result;
>   }
> -
> +
>   /**
>    * Get a reference from the JNIRefs stack.
>    * @param offset in JNIRefs stack
>
> Modified: rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src-generated/options/BooleanOptions.vm.dat
> ===================================================================
> --- rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src-generated/options/BooleanOptions.vm.dat     2009-02-07 05:40:10 UTC (rev 15398)
> +++ rvmroot/branches/RVM-PureNativeThread/optPhase1/rvm/src-generated/options/BooleanOptions.vm.dat     2009-02-07 06:29:26 UTC (rev 15399)
> @@ -32,3 +32,6 @@
>  ErrorsFatal false errorsFatal
>  Exit when non-fatal errors are detected; used for regression testing
>
> +traceJNI false
> +Trace when calls into JNI happen
> +
>
>
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