From e4830ad2eb85b9fef8f6e01b6bcbe34983f1d912 Mon Sep 17 00:00:00 2001 From: Prakash Ramrakhyani Date: Tue, 13 Sep 2011 12:06:13 -0500 Subject: [PATCH] gem5ops: Implement Java JNI for gem5Ops These ops allow gem5 ops to be called from within java programs like the following: import jni.gem5Op; public class HelloWorld { public static void main(String[] args) { gem5Op gem5 = new gem5Op(); System.out.println("Rpns0:" + gem5.rpns()); System.out.println("Rpns1:" + gem5.rpns()); } static { System.loadLibrary("gem5OpJni"); } } When building you need to make sure classpath include gem5OpJni.jar: javac -classpath $CLASSPATH:/path/to/gem5OpJni.jar HelloWorld.java and when running you need to make sure both the java and library path are set: java -classpath $CLASSPATH:/path/to/gem5OpJni.jar -Djava.library.path=/path/to/libgem5OpJni.so HelloWorld --- util/m5/Makefile.arm | 20 ++++- util/m5/jni/gem5Op.java | 67 ++++++++++++++++ util/m5/jni_gem5Op.c | 172 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 257 insertions(+), 2 deletions(-) create mode 100644 util/m5/jni/gem5Op.java create mode 100644 util/m5/jni_gem5Op.c diff --git a/util/m5/Makefile.arm b/util/m5/Makefile.arm index 94c222644..80c562a06 100644 --- a/util/m5/Makefile.arm +++ b/util/m5/Makefile.arm @@ -47,8 +47,16 @@ CC=$(CROSS_COMPILE)gcc AS=$(CROSS_COMPILE)as LD=$(CROSS_COMPILE)ld -CFLAGS=-O2 +JC=javac +JH=javah +JR=jar +### JDK_PATH must be set to build gem5OpJni +#JDK_PATH=/path/to/jdk/version_number + +CFLAGS=-O2 -I $(JDK_PATH)/include/ -I $(JDK_PATH)/include/linux + OBJS=m5.o m5op_arm.o +JNI_OBJS=m5op_arm.o jni_gem5Op.o all: m5 @@ -61,5 +69,13 @@ all: m5 m5: $(OBJS) $(CC) -o $@ $(OBJS) +gem5OpJni: gem5OpJni.jar $(JNI_OBJS) + $(CC) --shared -o lib$@.so $(JNI_OBJS) + +gem5OpJni.jar: + $(JC) jni/gem5Op.java; \ + $(JH) jni.gem5Op; \ + $(JR) cvf $@ jni/*.class + clean: - rm -f *.o m5 + rm -f *.o m5 libgemOpJni.so gem5OpJni.jar jni/*.class diff --git a/util/m5/jni/gem5Op.java b/util/m5/jni/gem5Op.java new file mode 100644 index 000000000..bb324b37c --- /dev/null +++ b/util/m5/jni/gem5Op.java @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2010 ARM Limited + * All rights reserved + * + * The license below extends only to copyright in the software and shall + * not be construed as granting a license to any other intellectual + * property including but not limited to intellectual property relating + * to a hardware implementation of the functionality of the software + * licensed hereunder. You may use the software subject to the license + * terms below provided that you ensure that this notice is replicated + * unmodified and in its entirety in all distributions of the software, + * modified or unmodified, in source code or in binary form. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Prakash Ramrakhyani + */ + +package jni; + +/** + * Java class to implement JNI for m5Ops + */ + +public class gem5Op { + public native void arm(long address); + public native void quiesce(); + public native void quiesceNs(long ns); + public native void quiesceCycle(long cycles); + public native long quiesceTime(); + public native long rpns(); + public native void wakeCPU(long cpuid); + + public native void exit(long ns_delay); + public native long initparam(); + public native void checkpoint(long ns_delay, long ns_period); + public native void reset_stats(long ns_delay, long ns_period); + public native void dump_stats(long ns_delay, long ns_period); + public native void dumpreset_stats(long ns_delay, long ns_period); + public native void debugbreak(); + public native void switchcpu(); + public native void panic(); + public native void work_begin(long workid, long threadid); + public native void work_end(long workid, long threadid); + +} diff --git a/util/m5/jni_gem5Op.c b/util/m5/jni_gem5Op.c new file mode 100644 index 000000000..501933e62 --- /dev/null +++ b/util/m5/jni_gem5Op.c @@ -0,0 +1,172 @@ +/* + * Copyright (c) 2010 ARM Limited + * All rights reserved + * + * The license below extends only to copyright in the software and shall + * not be construed as granting a license to any other intellectual + * property including but not limited to intellectual property relating + * to a hardware implementation of the functionality of the software + * licensed hereunder. You may use the software subject to the license + * terms below provided that you ensure that this notice is replicated + * unmodified and in its entirety in all distributions of the software, + * modified or unmodified, in source code or in binary form. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Prakash Ramrakhyani + */ + +#include + +#include "jni_gem5Op.h" +#include "m5op.h" + +/** + C library interface for gem5Op JNI + +*/ + +JNIEXPORT void JNICALL +Java_jni_gem5Op_arm(JNIEnv *env, jobject obj, jlong j_address) +{ + arm(j_address); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_quiesce(JNIEnv *env, jobject obj) +{ + quiesce(); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_quiesceNs(JNIEnv *env, jobject obj, jlong j_ns) +{ + quiesceNs(j_ns); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_quiesceCycle(JNIEnv *env, jobject obj, jlong j_cycles) +{ + quiesceCycle(j_cycles); +} + +JNIEXPORT jlong JNICALL +Java_jni_gem5Op_quiesceTime(JNIEnv *env, jobject obj) +{ + uint64_t time = quiesceTime(); + if (time & 0x8000000000000000ULL) + printf("Truncated return value from quiesceTime() to 63 bits\n"); + return (time & 0x7FFFFFFFFFFFFFFFULL); +} + +JNIEXPORT jlong JNICALL +Java_jni_gem5Op_rpns(JNIEnv *env, jobject obj) +{ + uint64_t time = rpns(); + if (time & 0x8000000000000000ULL) + printf("Truncated return value from rpns() to 63 bits\n"); + return (time & 0x7FFFFFFFFFFFFFFFULL); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_wakeCPU(JNIEnv *env, jobject obj, jlong j_cpuid) +{ + wakeCPU(j_cpuid); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_exit(JNIEnv *env, jobject obj, jlong j_ns_delay) +{ + m5_exit(j_ns_delay); +} + +JNIEXPORT jlong JNICALL +Java_jni_gem5Op_initparam(JNIEnv *env, jobject obj) +{ + uint64_t param = m5_initparam(); + if (param & 0x8000000000000000ULL) + printf("Truncated return value from m_initparam() to 63 bits\n"); + return (param & 0x7FFFFFFFFFFFFFFFULL); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_checkpoint(JNIEnv *env, jobject obj, + jlong j_ns_delay, jlong j_ns_period) +{ + m5_checkpoint(j_ns_delay, j_ns_period); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_reset_1stats(JNIEnv *env, jobject obj, + jlong j_ns_delay, jlong j_ns_period) +{ + m5_reset_stats(j_ns_delay, j_ns_period); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_dump_1stats(JNIEnv *env, jobject obj, + jlong j_ns_delay, jlong j_ns_period) +{ + m5_dump_stats(j_ns_delay, j_ns_period); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_dumpreset_1stats(JNIEnv *env, jobject obj, + jlong j_ns_delay, jlong j_ns_period) +{ + m5_dumpreset_stats(j_ns_delay, j_ns_period); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_debugbreak(JNIEnv *env, jobject obj) +{ + m5_debugbreak(); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_switchcpu (JNIEnv *env, jobject obj) +{ + m5_switchcpu(); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_panic(JNIEnv *env, jobject obj) +{ + m5_panic(); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_work_1begin(JNIEnv *env, jobject obj, + jlong j_workid, jlong j_threadid) +{ + m5_work_begin(j_workid, j_threadid); +} + +JNIEXPORT void JNICALL +Java_jni_gem5Op_work_1end(JNIEnv *env, jobject obj, + jlong j_workid, jlong j_threadid) +{ + m5_work_end(j_workid, j_threadid); +} + -- 2.30.2