#include <sstream>
#include <vector>
+#include <dlfcn.h>
+
#ifdef __APPLE__
#include <JavaVM/jni.h>
#else
#include <jni.h>
#endif
+#ifdef __ANDROID__
+// XXX: this is deprecated?!?!?!?!?!?!
+#include <sys/system_properties.h>
+#endif
+
#include "cycript.hpp"
#include "Error.hpp"
#include "Execute.hpp"
return value; \
}
-extern "C" {
- // Android's jni.h seriously doesn't declare these :/
- jint JNI_CreateJavaVM(JavaVM **, void **, void *);
- jint JNI_GetCreatedJavaVMs(JavaVM **, jsize, jsize *);
-}
-
-JNIEnv *GetJNI(JSContextRef context);
+static JNIEnv *GetJNI(JSContextRef context);
#define CYJavaForEachPrimitive \
CYJavaForEachPrimitive_(Z, z, Boolean, Boolean, boolean) \
#undef CYJavaForEachPrimitive_
};
+template <typename Type_>
+struct IsJavaPrimitive { static const bool value = false; };
+
+#define CYJavaForEachPrimitive_(T, t, Typ, Type, type) \
+ template <> \
+ struct IsJavaPrimitive<j ## type> { static const bool value = true; };
+CYJavaForEachPrimitive
+#undef CYJavaForEachPrimitive_
+
// Java References {{{
template <typename Value_>
struct CYJavaRef {
return jni_;
}
+ // XXX: this is only needed to support CYJavaEnv relying on C variadics
_finline Value_ get() const {
return value_;
}
#define CYJavaEnv_(Code) \
template <typename... Args_> \
- auto Code(Args_ &&... args) const -> decltype(jni->Code(args...)) { \
+ auto Code(Args_ &&... args) const -> decltype(jni->Code(cy::Forward<Args_>(args)...)) { \
return _envcall(jni, Code(cy::Forward<Args_>(args)...)); \
}
CYJavaEnv_(GetMethodID)
CYJavaEnv_(GetStaticMethodID)
CYJavaEnv_(IsSameObject)
+ CYJavaEnv_(RegisterNatives)
#undef CYJavaEnv_
#define CYJavaEnv_(Code) \
jclass _class(table->value_);
if (table->interface_ && count == 1) {
- JSObjectRef target(CYCastJSObject(context, arguments[0]));
auto Cycript$(jni.FindClass("Cycript"));
- auto Cycript$Make(jni.GetStaticMethodID(Cycript$, "proxy", "(Ljava/lang/Class;J)Ljava/lang/Object;"));
- auto protect(new CYProtect(context, target));
- return CYCastJSObject(context, jni.CallObjectMethod<jobject>(Cycript$, Cycript$Make, _class, reinterpret_cast<jlong>(protect)));
+ auto Cycript$Make(jni.GetStaticMethodID(Cycript$, "proxy", "(Ljava/lang/Class;LCycript$Wrapper;)Ljava/lang/Object;"));
+ return CYCastJSObject(context, jni.CallObjectMethod<jobject>(Cycript$, Cycript$Make, _class, CYCastJavaObject(jni, context, CYCastJSObject(context, arguments[0])).get()));
}
CYJavaSignature bound(count);
{(char *) "handle", (char *) "(JLjava/lang/String;[Ljava/lang/Object;)Ljava/lang/Object;", (void *) &Cycript_handle},
};
-JNIEnv *GetJNI(JSContextRef context) {
+template <typename Type_>
+static _finline void dlset(Type_ &function, const char *name, void *handle) {
+ function = reinterpret_cast<Type_>(dlsym(handle, name));
+}
+
+jint CYJavaVersion(JNI_VERSION_1_4);
+
+static JNIEnv *CYGetCreatedJava(jint (*$JNI_GetCreatedJavaVMs)(JavaVM **, jsize, jsize *)) {
+ jsize capacity(16);
+ JavaVM *jvms[capacity];
+ jsize size;
+ _jnicall($JNI_GetCreatedJavaVMs(jvms, capacity, &size));
+ if (size == 0)
+ return NULL;
+ JavaVM *jvm(jvms[0]);
+ JNIEnv *jni;
+ _jnicall(jvm->GetEnv(reinterpret_cast<void **>(&jni), CYJavaVersion));
+ return jni;
+}
+
+static JNIEnv *GetJNI_(JSContextRef context) {
static JavaVM *jvm(NULL);
static JNIEnv *jni(NULL);
if (jni != NULL)
return jni;
- jint version(JNI_VERSION_1_4);
- jsize capacity(16);
- JavaVM *jvms[capacity];
- jsize size;
- _jnicall(JNI_GetCreatedJavaVMs(jvms, capacity, &size));
+ CYPool pool;
+ void *handle(RTLD_DEFAULT);
+ std::string library;
- if (size != 0) {
- jvm = jvms[0];
- _jnicall(jvm->GetEnv(reinterpret_cast<void **>(&jni), version));
+ jint (*$JNI_GetCreatedJavaVMs)(JavaVM **jvms, jsize capacity, jsize *size);
+ dlset($JNI_GetCreatedJavaVMs, "JNI_GetCreatedJavaVMs", handle);
+
+ if ($JNI_GetCreatedJavaVMs != NULL) {
+ if (JNIEnv *jni = CYGetCreatedJava($JNI_GetCreatedJavaVMs))
+ return jni;
} else {
- CYPool pool;
- std::vector<JavaVMOption> options;
-
- {
- std::ostringstream option;
- option << "-Djava.class.path=";
- option << CYPoolLibraryPath(pool) << "/libcycript.jar";
- if (const char *classpath = getenv("CLASSPATH"))
- option << ':' << classpath;
- options.push_back(JavaVMOption{pool.strdup(option.str().c_str()), NULL});
+ std::vector<const char *> guesses;
+
+#ifdef __ANDROID__
+ char android[PROP_VALUE_MAX];
+ if (__system_property_get("persist.sys.dalvik.vm.lib", android) != 0)
+ guesses.push_back(android);
+#endif
+
+ guesses.push_back("libart.so");
+ guesses.push_back("libdvm.so");
+ guesses.push_back("libjvm.so");
+
+ for (const char *guess : guesses) {
+ handle = dlopen(guess, RTLD_LAZY | RTLD_GLOBAL);
+ if (handle != NULL) {
+ library = guess;
+ break;
+ }
}
- JavaVMInitArgs args;
- memset(&args, 0, sizeof(args));
- args.version = version;
- args.nOptions = options.size();
- args.options = options.data();
- _jnicall(JNI_CreateJavaVM(&jvm, reinterpret_cast<void **>(&jni), &args));
+ _assert(library.size() != 0);
+
+ dlset($JNI_GetCreatedJavaVMs, "JNI_GetCreatedJavaVMs", handle);
+ if (JNIEnv *jni = CYGetCreatedJava($JNI_GetCreatedJavaVMs))
+ return jni;
+ }
+
+ std::vector<JavaVMOption> options;
+
+ {
+ std::ostringstream option;
+ option << "-Djava.class.path=";
+ option << CYPoolLibraryPath(pool) << "/libcycript.jar";
+ if (const char *classpath = getenv("CLASSPATH"))
+ option << ':' << classpath;
+ options.push_back(JavaVMOption{pool.strdup(option.str().c_str()), NULL});
+ }
+
+ // To use libnativehelper to access JNI_GetCreatedJavaVMs, you need JniInvocation.
+ // ...but there can only be one JniInvocation, and assuradely the other VM has it.
+ // Essentially, this API makes no sense. We need it for AndroidRuntime, though :/.
+
+ if (void *libnativehelper = dlopen("libnativehelper.so", RTLD_LAZY | RTLD_GLOBAL)) {
+ class JniInvocation$;
+ JniInvocation$ *(*JniInvocation$$init$)(JniInvocation$ *self)(NULL);
+ bool (*JniInvocation$Init)(JniInvocation$ *self, const char *library)(NULL);
+ JniInvocation$ *(*JniInvocation$finalize)(JniInvocation$ *self)(NULL);
+
+ dlset(JniInvocation$$init$, "_ZN13JniInvocationC1Ev", libnativehelper);
+ dlset(JniInvocation$Init, "_ZN13JniInvocation4InitEPKc", libnativehelper);
+ dlset(JniInvocation$finalize, "_ZN13JniInvocationD1Ev", libnativehelper);
+
+ // XXX: we should attach a pool to the VM itself and deallocate this there
+ //auto invocation(pool.calloc<JniInvocation$>(1, 1024));
+ //_assert(JniInvocation$finalize != NULL);
+ //pool.atexit(reinterpret_cast<void (*)(void *)>(JniInvocation$finalize), invocation);
+
+ auto invocation(static_cast<JniInvocation$ *>(calloc(1, 1024)));
+
+ _assert(JniInvocation$$init$ != NULL);
+ JniInvocation$$init$(invocation);
+
+ _assert(JniInvocation$Init != NULL);
+ JniInvocation$Init(invocation, NULL);
+
+ dlset($JNI_GetCreatedJavaVMs, "JNI_GetCreatedJavaVMs", libnativehelper);
+ if (JNIEnv *jni = CYGetCreatedJava($JNI_GetCreatedJavaVMs))
+ return jni;
+ }
+
+ if (void *libandroid_runtime = dlopen("libandroid_runtime.so", RTLD_LAZY | RTLD_GLOBAL)) {
+ class AndroidRuntime$;
+ AndroidRuntime$ *(*AndroidRuntime$$init$)(AndroidRuntime$ *self, char *args, unsigned int size)(NULL);
+ int (*AndroidRuntime$startVm)(AndroidRuntime$ *self, JavaVM **jvm, JNIEnv **jni)(NULL);
+ int (*AndroidRuntime$startReg)(JNIEnv *jni)(NULL);
+ int (*AndroidRuntime$addOption)(AndroidRuntime$ *self, const char *option, void *extra)(NULL);
+ int (*AndroidRuntime$addVmArguments)(AndroidRuntime$ *self, int, const char *const argv[])(NULL);
+ AndroidRuntime$ *(*AndroidRuntime$finalize)(AndroidRuntime$ *self)(NULL);
+
+ dlset(AndroidRuntime$$init$, "_ZN7android14AndroidRuntimeC1EPcj", libandroid_runtime);
+ dlset(AndroidRuntime$startVm, "_ZN7android14AndroidRuntime7startVmEPP7_JavaVMPP7_JNIEnv", libandroid_runtime);
+ dlset(AndroidRuntime$startReg, "_ZN7android14AndroidRuntime8startRegEP7_JNIEnv", libandroid_runtime);
+ dlset(AndroidRuntime$addOption, "_ZN7android14AndroidRuntime9addOptionEPKcPv", libandroid_runtime);
+ dlset(AndroidRuntime$addVmArguments, "_ZN7android14AndroidRuntime14addVmArgumentsEiPKPKc", libandroid_runtime);
+ dlset(AndroidRuntime$finalize, "_ZN7android14AndroidRuntimeD1Ev", libandroid_runtime);
+
+ // XXX: it would also be interesting to attach this to a global pool
+ AndroidRuntime$ *runtime(pool.calloc<AndroidRuntime$>(1, 1024));
+
+ _assert(AndroidRuntime$$init$ != NULL);
+ AndroidRuntime$$init$(runtime, NULL, 0);
+
+ if (AndroidRuntime$addOption == NULL) {
+ _assert(AndroidRuntime$addVmArguments != NULL);
+ std::vector<const char *> arguments;
+ for (const auto &option : options)
+ arguments.push_back(option.optionString);
+ AndroidRuntime$addVmArguments(runtime, arguments.size(), arguments.data());
+ } else for (const auto &option : options)
+ AndroidRuntime$addOption(runtime, option.optionString, option.extraInfo);
+
+ int failure;
+
+ _assert(AndroidRuntime$startVm != NULL);
+ failure = AndroidRuntime$startVm(runtime, &jvm, &jni);
+ _assert(failure == 0);
+
+ _assert(AndroidRuntime$startReg != NULL);
+ failure = AndroidRuntime$startReg(jni);
+ _assert(failure == 0);
+
+ return jni;
}
- auto Cycript$(CYJavaEnv(jni).FindClass("Cycript"));
- _envcall(jni, RegisterNatives(Cycript$, Cycript_, sizeof(Cycript_) / sizeof(Cycript_[0])));
+ jint (*$JNI_CreateJavaVM)(JavaVM **jvm, void **, void *);
+ dlset($JNI_CreateJavaVM, "JNI_CreateJavaVM", handle);
+
+ JavaVMInitArgs args;
+ memset(&args, 0, sizeof(args));
+ args.version = CYJavaVersion;
+ args.nOptions = options.size();
+ args.options = options.data();
+ _jnicall($JNI_CreateJavaVM(&jvm, reinterpret_cast<void **>(&jni), &args));
+ return jni;
+}
+static JNIEnv *GetJNI(JSContextRef context) {
+ CYJavaEnv jni(GetJNI_(context));
+ auto Cycript$(jni.FindClass("Cycript"));
+ jni.RegisterNatives(Cycript$, Cycript_, sizeof(Cycript_) / sizeof(Cycript_[0]));
return jni;
}
projects / cycript.git / blobdiff