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implement missing APIs (uc_query, uc_mem_map_ptr, uc_mem_regions) in java binding

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This commit is contained in:
Chris Eagle
2016-02-06 15:16:44 -08:00
parent 6986fa3947
commit aa1657006b
3 changed files with 148 additions and 5 deletions
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76
bindings/java/unicorn_Unicorn.c Normal file → Executable file
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@ -244,7 +244,28 @@ JNIEXPORT jboolean JNICALL Java_unicorn_Unicorn_arch_1supported
JNIEXPORT void JNICALL Java_unicorn_Unicorn_close
(JNIEnv *env, jobject self) {
uc_engine *eng = getEngine(env, self);
uc_close(eng);
uc_err err = uc_close(eng);
if (err != UC_ERR_OK) {
throwException(env, err);
}
//We also need to ReleaseByteArrayElements for any regions that
//were mapped with uc_mem_map_ptr
}
/*
* Class: unicorn_Unicorn
* Method: query
* Signature: (I)I
*/
JNIEXPORT jint JNICALL Java_unicorn_Unicorn_query
(JNIEnv *env, jobject self, jint type) {
uc_engine *eng = getEngine(env, self);
size_t result;
uc_err err = uc_query(eng, type, &result);
if (err != UC_ERR_OK) {
throwException(env, err);
}
return (jint)result;
}
/*
@ -508,6 +529,24 @@ JNIEXPORT void JNICALL Java_unicorn_Unicorn_mem_1map
}
}
/*
* Class: unicorn_Unicorn
* Method: mem_map_ptr
* Signature: (JJI[B)V
*/
JNIEXPORT void JNICALL Java_unicorn_Unicorn_mem_1map_1ptr
(JNIEnv *env, jobject self, jlong address, jlong size, jint perms, jbyteArray block) {
uc_engine *eng = getEngine(env, self);
jbyte *array = (*env)->GetByteArrayElements(env, block, NULL);
uc_err err = uc_mem_map_ptr(eng, (uint64_t)address, (size_t)size, (uint32_t)perms, (void*)array);
if (err != UC_ERR_OK) {
throwException(env, err);
}
//Need to track address/block/array so that we can ReleaseByteArrayElements when the
//block gets unmapped or when uc_close gets called
//(*env)->ReleaseByteArrayElements(env, block, array, JNI_ABORT);
}
/*
* Class: unicorn_Unicorn
* Method: mem_unmap
@ -521,6 +560,9 @@ JNIEXPORT void JNICALL Java_unicorn_Unicorn_mem_1unmap
if (err != UC_ERR_OK) {
throwException(env, err);
}
//If a region was mapped using uc_mem_map_ptr, we also need to
//ReleaseByteArrayElements for that region
}
/*
@ -537,3 +579,35 @@ JNIEXPORT void JNICALL Java_unicorn_Unicorn_mem_1protect
throwException(env, err);
}
}
/*
* Class: unicorn_Unicorn
* Method: mem_regions
* Signature: ()[Lunicorn/MemRegion;
*/
JNIEXPORT jobjectArray JNICALL Java_unicorn_Unicorn_mem_1regions
(JNIEnv *env, jobject self) {
uc_engine *eng = getEngine(env, self);
uc_mem_region *regions = NULL;
uint32_t count = 0;
uint32_t i;
uc_err err = uc_mem_regions(eng, &regions, &count);
if (err != UC_ERR_OK) {
throwException(env, err);
}
jclass clz = (*env)->FindClass(env, "unicorn/MemRegion");
if ((*env)->ExceptionCheck(env)) {
return NULL;
}
jobjectArray result = (*env)->NewObjectArray(env, (jsize)count, clz, NULL);
jmethodID cons = (*env)->GetMethodID(env, clz, "<init>", "(JJI)V");
for (i = 0; i < count; i++) {
jobject mr = (*env)->NewObject(env, clz, cons, regions[i].begin, regions[i].end, regions[i].perms);
(*env)->SetObjectArrayElement(env, result, (jsize)i, mr);
}
free(regions);
return result;
}