| author | twisti |
| Mon, 25 Mar 2013 17:13:26 -0700 | |
| changeset 16617 | 6235d2c7549f |
| parent 16616 | 4c8e1c4a798b |
| child 16618 | 0d73b54bf055 |
--- a/hotspot/src/share/vm/ci/ciMethod.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/ci/ciMethod.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -790,6 +790,17 @@ return count; } + +// ------------------------------------------------------------------ +// ciMethod::is_special_get_caller_class_method +// +bool ciMethod::is_ignored_by_security_stack_walk() const { + check_is_loaded(); + VM_ENTRY_MARK; + return get_Method()->is_ignored_by_security_stack_walk(); +} + + // ------------------------------------------------------------------ // invokedynamic support
--- a/hotspot/src/share/vm/ci/ciMethod.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/ci/ciMethod.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -166,8 +166,9 @@ // Code size for inlining decisions. int code_size_for_inlining(); - bool force_inline() { return get_Method()->force_inline(); } - bool dont_inline() { return get_Method()->dont_inline(); } + bool caller_sensitive() { return get_Method()->caller_sensitive(); } + bool force_inline() { return get_Method()->force_inline(); } + bool dont_inline() { return get_Method()->dont_inline(); } int comp_level(); int highest_osr_comp_level(); @@ -264,6 +265,9 @@ int instructions_size(); int scale_count(int count, float prof_factor = 1.); // make MDO count commensurate with IIC + // Stack walking support + bool is_ignored_by_security_stack_walk() const; + // JSR 292 support bool is_method_handle_intrinsic() const; bool is_compiled_lambda_form() const;
--- a/hotspot/src/share/vm/classfile/classFileParser.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/classFileParser.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -1735,9 +1735,14 @@ Symbol* name) { vmSymbols::SID sid = vmSymbols::find_sid(name); // Privileged code can use all annotations. Other code silently drops some. - bool privileged = loader_data->is_the_null_class_loader_data() || - loader_data->is_anonymous(); + const bool privileged = loader_data->is_the_null_class_loader_data() || + loader_data->is_ext_class_loader_data() || + loader_data->is_anonymous(); switch (sid) { + case vmSymbols::VM_SYMBOL_ENUM_NAME(sun_reflect_CallerSensitive_signature): + if (_location != _in_method) break; // only allow for methods + if (!privileged) break; // only allow in privileged code + return _method_CallerSensitive; case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_ForceInline_signature): if (_location != _in_method) break; // only allow for methods if (!privileged) break; // only allow in privileged code @@ -1775,6 +1780,8 @@ } void ClassFileParser::MethodAnnotationCollector::apply_to(methodHandle m) { + if (has_annotation(_method_CallerSensitive)) + m->set_caller_sensitive(true); if (has_annotation(_method_ForceInline)) m->set_force_inline(true); if (has_annotation(_method_DontInline))
--- a/hotspot/src/share/vm/classfile/classFileParser.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/classFileParser.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -119,6 +119,7 @@ enum Location { _in_field, _in_method, _in_class }; enum ID { _unknown = 0, + _method_CallerSensitive, _method_ForceInline, _method_DontInline, _method_LambdaForm_Compiled,
--- a/hotspot/src/share/vm/classfile/classLoaderData.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/classLoaderData.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -321,6 +321,13 @@ } } +/** + * Returns true if this class loader data is for the extension class loader. + */ +bool ClassLoaderData::is_ext_class_loader_data() const { + return SystemDictionary::is_ext_class_loader(class_loader()); +} + Metaspace* ClassLoaderData::metaspace_non_null() { assert(!DumpSharedSpaces, "wrong metaspace!"); // If the metaspace has not been allocated, create a new one. Might want
--- a/hotspot/src/share/vm/classfile/classLoaderData.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/classLoaderData.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -191,6 +191,7 @@ bool is_the_null_class_loader_data() const { return this == _the_null_class_loader_data; } + bool is_ext_class_loader_data() const; // The Metaspace is created lazily so may be NULL. This // method will allocate a Metaspace if needed.
--- a/hotspot/src/share/vm/classfile/javaClasses.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/javaClasses.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -1050,15 +1050,16 @@ // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): enum { - MN_IS_METHOD = 0x00010000, // method (not constructor) - MN_IS_CONSTRUCTOR = 0x00020000, // constructor - MN_IS_FIELD = 0x00040000, // field - MN_IS_TYPE = 0x00080000, // nested type + MN_IS_METHOD = 0x00010000, // method (not constructor) + MN_IS_CONSTRUCTOR = 0x00020000, // constructor + MN_IS_FIELD = 0x00040000, // field + MN_IS_TYPE = 0x00080000, // nested type + MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected MN_REFERENCE_KIND_SHIFT = 24, // refKind - MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, + MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers: - MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes - MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces + MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes + MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces }; // Accessors for code generation:
--- a/hotspot/src/share/vm/classfile/systemDictionary.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/systemDictionary.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -146,6 +146,17 @@ } return false; } + +/** + * Returns true if the passed class loader is the extension class loader. + */ +bool SystemDictionary::is_ext_class_loader(Handle class_loader) { + if (class_loader.is_null()) { + return false; + } + return (class_loader->klass()->name() == vmSymbols::sun_misc_Launcher_ExtClassLoader()); +} + // ---------------------------------------------------------------------------- // Resolving of classes
--- a/hotspot/src/share/vm/classfile/systemDictionary.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/systemDictionary.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -106,6 +106,7 @@ do_klass(ThreadDeath_klass, java_lang_ThreadDeath, Pre ) \ do_klass(Exception_klass, java_lang_Exception, Pre ) \ do_klass(RuntimeException_klass, java_lang_RuntimeException, Pre ) \ + do_klass(SecurityManager_klass, java_lang_SecurityManager, Pre ) \ do_klass(ProtectionDomain_klass, java_security_ProtectionDomain, Pre ) \ do_klass(AccessControlContext_klass, java_security_AccessControlContext, Pre ) \ do_klass(ClassNotFoundException_klass, java_lang_ClassNotFoundException, Pre ) \ @@ -138,13 +139,14 @@ /* NOTE: needed too early in bootstrapping process to have checks based on JDK version */ \ /* Universe::is_gte_jdk14x_version() is not set up by this point. */ \ /* It's okay if this turns out to be NULL in non-1.4 JDKs. */ \ - do_klass(lambda_MagicLambdaImpl_klass, java_lang_invoke_MagicLambdaImpl, Opt ) \ + do_klass(lambda_MagicLambdaImpl_klass, java_lang_invoke_MagicLambdaImpl, Opt ) \ do_klass(reflect_MagicAccessorImpl_klass, sun_reflect_MagicAccessorImpl, Opt ) \ do_klass(reflect_MethodAccessorImpl_klass, sun_reflect_MethodAccessorImpl, Opt_Only_JDK14NewRef) \ do_klass(reflect_ConstructorAccessorImpl_klass, sun_reflect_ConstructorAccessorImpl, Opt_Only_JDK14NewRef) \ do_klass(reflect_DelegatingClassLoader_klass, sun_reflect_DelegatingClassLoader, Opt ) \ do_klass(reflect_ConstantPool_klass, sun_reflect_ConstantPool, Opt_Only_JDK15 ) \ do_klass(reflect_UnsafeStaticFieldAccessorImpl_klass, sun_reflect_UnsafeStaticFieldAccessorImpl, Opt_Only_JDK15 ) \ + do_klass(reflect_CallerSensitive_klass, sun_reflect_CallerSensitive, Opt ) \ \ /* support for dynamic typing; it's OK if these are NULL in earlier JDKs */ \ do_klass(MethodHandle_klass, java_lang_invoke_MethodHandle, Pre_JSR292 ) \ @@ -628,12 +630,15 @@ static bool is_parallelCapable(Handle class_loader); static bool is_parallelDefine(Handle class_loader); +public: + static bool is_ext_class_loader(Handle class_loader); + +private: static Klass* find_shared_class(Symbol* class_name); // Setup link to hierarchy static void add_to_hierarchy(instanceKlassHandle k, TRAPS); -private: // We pass in the hashtable index so we can calculate it outside of // the SystemDictionary_lock.
--- a/hotspot/src/share/vm/classfile/vmSymbols.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/classfile/vmSymbols.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -91,6 +91,7 @@ template(java_lang_StringBuffer, "java/lang/StringBuffer") \ template(java_lang_StringBuilder, "java/lang/StringBuilder") \ template(java_lang_CharSequence, "java/lang/CharSequence") \ + template(java_lang_SecurityManager, "java/lang/SecurityManager") \ template(java_security_AccessControlContext, "java/security/AccessControlContext") \ template(java_security_ProtectionDomain, "java/security/ProtectionDomain") \ template(java_io_OutputStream, "java/io/OutputStream") \ @@ -211,6 +212,8 @@ template(sun_reflect_SerializationConstructorAccessorImpl, "sun/reflect/SerializationConstructorAccessorImpl") \ template(sun_reflect_DelegatingClassLoader, "sun/reflect/DelegatingClassLoader") \ template(sun_reflect_Reflection, "sun/reflect/Reflection") \ + template(sun_reflect_CallerSensitive, "sun/reflect/CallerSensitive") \ + template(sun_reflect_CallerSensitive_signature, "Lsun/reflect/CallerSensitive;") \ template(checkedExceptions_name, "checkedExceptions") \ template(clazz_name, "clazz") \ template(exceptionTypes_name, "exceptionTypes") \ @@ -343,6 +346,7 @@ template(contextClassLoader_name, "contextClassLoader") \ template(inheritedAccessControlContext_name, "inheritedAccessControlContext") \ template(isPrivileged_name, "isPrivileged") \ + template(getClassContext_name, "getClassContext") \ template(wait_name, "wait") \ template(checkPackageAccess_name, "checkPackageAccess") \ template(stackSize_name, "stackSize") \ @@ -463,6 +467,7 @@ template(void_classloader_signature, "()Ljava/lang/ClassLoader;") \ template(void_object_signature, "()Ljava/lang/Object;") \ template(void_class_signature, "()Ljava/lang/Class;") \ + template(void_class_array_signature, "()[Ljava/lang/Class;") \ template(void_string_signature, "()Ljava/lang/String;") \ template(object_array_object_signature, "([Ljava/lang/Object;)Ljava/lang/Object;") \ template(object_object_array_object_signature, "(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;")\ @@ -705,9 +710,8 @@ do_intrinsic(_getLength, java_lang_reflect_Array, getLength_name, object_int_signature, F_SN) \ do_name( getLength_name, "getLength") \ \ - do_intrinsic(_getCallerClass, sun_reflect_Reflection, getCallerClass_name, getCallerClass_signature, F_SN) \ + do_intrinsic(_getCallerClass, sun_reflect_Reflection, getCallerClass_name, void_class_signature, F_SN) \ do_name( getCallerClass_name, "getCallerClass") \ - do_signature(getCallerClass_signature, "(I)Ljava/lang/Class;") \ \ do_intrinsic(_newArray, java_lang_reflect_Array, newArray_name, newArray_signature, F_SN) \ do_name( newArray_name, "newArray") \
--- a/hotspot/src/share/vm/oops/method.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/oops/method.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -967,6 +967,32 @@ return false; } + +/** + * Returns true if this is one of the specially treated methods for + * security related stack walks (like Reflection.getCallerClass). + */ +bool Method::is_ignored_by_security_stack_walk() const { + const bool use_new_reflection = JDK_Version::is_gte_jdk14x_version() && UseNewReflection; + + assert(intrinsic_id() != vmIntrinsics::_invoke || Universe::reflect_invoke_cache()->is_same_method((Method*)this), "sanity"); + if (intrinsic_id() == vmIntrinsics::_invoke) { + // This is Method.invoke() -- ignore it + return true; + } + if (use_new_reflection && + method_holder()->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass())) { + // This is an auxilary frame -- ignore it + return true; + } + if (is_method_handle_intrinsic() || is_compiled_lambda_form()) { + // This is an internal adapter frame for method handles -- ignore it + return true; + } + return false; +} + + // Constant pool structure for invoke methods: enum { _imcp_invoke_name = 1, // utf8: 'invokeExact', etc. @@ -1178,13 +1204,13 @@ // because we are not loading from core libraries // exception: the AES intrinsics come from lib/ext/sunjce_provider.jar // which does not use the class default class loader so we check for its loader here - if ((InstanceKlass::cast(holder)->class_loader() != NULL) && - InstanceKlass::cast(holder)->class_loader()->klass()->name() != vmSymbols::sun_misc_Launcher_ExtClassLoader()) { + InstanceKlass* ik = InstanceKlass::cast(holder); + if ((ik->class_loader() != NULL) && !SystemDictionary::is_ext_class_loader(ik->class_loader())) { return vmSymbols::NO_SID; // regardless of name, no intrinsics here } // see if the klass name is well-known: - Symbol* klass_name = InstanceKlass::cast(holder)->name(); + Symbol* klass_name = ik->name(); return vmSymbols::find_sid(klass_name); }
--- a/hotspot/src/share/vm/oops/method.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/oops/method.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -118,11 +118,12 @@ #endif u2 _method_size; // size of this object u1 _intrinsic_id; // vmSymbols::intrinsic_id (0 == _none) - u1 _jfr_towrite : 1, // Flags - _force_inline : 1, - _hidden : 1, - _dont_inline : 1, - : 4; + u1 _jfr_towrite : 1, // Flags + _caller_sensitive : 1, + _force_inline : 1, + _hidden : 1, + _dont_inline : 1, + : 3; u2 _interpreter_throwout_count; // Count of times method was exited via exception while interpreting u2 _number_of_breakpoints; // fullspeed debugging support InvocationCounter _invocation_counter; // Incremented before each activation of the method - used to trigger frequency-based optimizations @@ -618,6 +619,9 @@ // Reflection support bool is_overridden_in(Klass* k) const; + // Stack walking support + bool is_ignored_by_security_stack_walk() const; + // JSR 292 support bool is_method_handle_intrinsic() const; // MethodHandles::is_signature_polymorphic_intrinsic(intrinsic_id) bool is_compiled_lambda_form() const; // intrinsic_id() == vmIntrinsics::_compiledLambdaForm @@ -705,15 +709,16 @@ void init_intrinsic_id(); // updates from _none if a match static vmSymbols::SID klass_id_for_intrinsics(Klass* holder); - bool jfr_towrite() { return _jfr_towrite; } - void set_jfr_towrite(bool towrite) { _jfr_towrite = towrite; } - - bool force_inline() { return _force_inline; } - void set_force_inline(bool x) { _force_inline = x; } - bool dont_inline() { return _dont_inline; } - void set_dont_inline(bool x) { _dont_inline = x; } - bool is_hidden() { return _hidden; } - void set_hidden(bool x) { _hidden = x; } + bool jfr_towrite() { return _jfr_towrite; } + void set_jfr_towrite(bool x) { _jfr_towrite = x; } + bool caller_sensitive() { return _caller_sensitive; } + void set_caller_sensitive(bool x) { _caller_sensitive = x; } + bool force_inline() { return _force_inline; } + void set_force_inline(bool x) { _force_inline = x; } + bool dont_inline() { return _dont_inline; } + void set_dont_inline(bool x) { _dont_inline = x; } + bool is_hidden() { return _hidden; } + void set_hidden(bool x) { _hidden = x; } ConstMethod::MethodType method_type() const { return _constMethod->method_type(); }
--- a/hotspot/src/share/vm/opto/library_call.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/opto/library_call.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -231,7 +231,6 @@ void copy_to_clone(Node* obj, Node* alloc_obj, Node* obj_size, bool is_array, bool card_mark); bool inline_native_clone(bool is_virtual); bool inline_native_Reflection_getCallerClass(); - bool is_method_invoke_or_aux_frame(JVMState* jvms); // Helper function for inlining native object hash method bool inline_native_hashcode(bool is_virtual, bool is_static); bool inline_native_getClass(); @@ -393,7 +392,7 @@ case vmIntrinsics::_getCallerClass: if (!UseNewReflection) return NULL; if (!InlineReflectionGetCallerClass) return NULL; - if (!JDK_Version::is_gte_jdk14x_version()) return NULL; + if (SystemDictionary::reflect_CallerSensitive_klass() == NULL) return NULL; break; case vmIntrinsics::_bitCount_i: @@ -3872,13 +3871,13 @@ } //-----------------inline_native_Reflection_getCallerClass--------------------- -// public static native Class<?> sun.reflect.Reflection.getCallerClass(int realFramesToSkip); +// public static native Class<?> sun.reflect.Reflection.getCallerClass(); // // In the presence of deep enough inlining, getCallerClass() becomes a no-op. // -// NOTE that this code must perform the same logic as -// vframeStream::security_get_caller_frame in that it must skip -// Method.invoke() and auxiliary frames. +// NOTE: This code must perform the same logic as JVM_GetCallerClass +// in that it must skip particular security frames and checks for +// caller sensitive methods. bool LibraryCallKit::inline_native_Reflection_getCallerClass() { #ifndef PRODUCT if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { @@ -3886,35 +3885,6 @@ } #endif - Node* caller_depth_node = argument(0); - - // The depth value must be a constant in order for the runtime call - // to be eliminated. - const TypeInt* caller_depth_type = _gvn.type(caller_depth_node)->isa_int(); - if (caller_depth_type == NULL || !caller_depth_type->is_con()) { -#ifndef PRODUCT - if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { - tty->print_cr(" Bailing out because caller depth was not a constant"); - } -#endif - return false; - } - // Note that the JVM state at this point does not include the - // getCallerClass() frame which we are trying to inline. The - // semantics of getCallerClass(), however, are that the "first" - // frame is the getCallerClass() frame, so we subtract one from the - // requested depth before continuing. We don't inline requests of - // getCallerClass(0). - int caller_depth = caller_depth_type->get_con() - 1; - if (caller_depth < 0) { -#ifndef PRODUCT - if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { - tty->print_cr(" Bailing out because caller depth was %d", caller_depth); - } -#endif - return false; - } - if (!jvms()->has_method()) { #ifndef PRODUCT if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { @@ -3923,95 +3893,67 @@ #endif return false; } - int _depth = jvms()->depth(); // cache call chain depth // Walk back up the JVM state to find the caller at the required - // depth. NOTE that this code must perform the same logic as - // vframeStream::security_get_caller_frame in that it must skip - // Method.invoke() and auxiliary frames. Note also that depth is - // 1-based (1 is the bottom of the inlining). - int inlining_depth = _depth; - JVMState* caller_jvms = NULL; - - if (inlining_depth > 0) { - caller_jvms = jvms(); - assert(caller_jvms = jvms()->of_depth(inlining_depth), "inlining_depth == our depth"); - do { - // The following if-tests should be performed in this order - if (is_method_invoke_or_aux_frame(caller_jvms)) { - // Skip a Method.invoke() or auxiliary frame - } else if (caller_depth > 0) { - // Skip real frame - --caller_depth; - } else { - // We're done: reached desired caller after skipping. - break; + // depth. + JVMState* caller_jvms = jvms(); + + // Cf. JVM_GetCallerClass + // NOTE: Start the loop at depth 1 because the current JVM state does + // not include the Reflection.getCallerClass() frame. + for (int n = 1; caller_jvms != NULL; caller_jvms = caller_jvms->caller(), n++) { + ciMethod* m = caller_jvms->method(); + switch (n) { + case 0: + fatal("current JVM state does not include the Reflection.getCallerClass frame"); + break; + case 1: + // Frame 0 and 1 must be caller sensitive (see JVM_GetCallerClass). + if (!m->caller_sensitive()) { +#ifndef PRODUCT + if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { + tty->print_cr(" Bailing out: CallerSensitive annotation expected at frame %d", n); + } +#endif + return false; // bail-out; let JVM_GetCallerClass do the work } - caller_jvms = caller_jvms->caller(); - --inlining_depth; - } while (inlining_depth > 0); - } - - if (inlining_depth == 0) { + break; + default: + if (!m->is_ignored_by_security_stack_walk()) { + // We have reached the desired frame; return the holder class. + // Acquire method holder as java.lang.Class and push as constant. + ciInstanceKlass* caller_klass = caller_jvms->method()->holder(); + ciInstance* caller_mirror = caller_klass->java_mirror(); + set_result(makecon(TypeInstPtr::make(caller_mirror))); + #ifndef PRODUCT - if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { - tty->print_cr(" Bailing out because caller depth (%d) exceeded inlining depth (%d)", caller_depth_type->get_con(), _depth); - tty->print_cr(" JVM state at this point:"); - for (int i = _depth; i >= 1; i--) { - ciMethod* m = jvms()->of_depth(i)->method(); - tty->print_cr(" %d) %s.%s", i, m->holder()->name()->as_utf8(), m->name()->as_utf8()); - } - } + if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { + tty->print_cr(" Succeeded: caller = %d) %s.%s, JVMS depth = %d", n, caller_klass->name()->as_utf8(), caller_jvms->method()->name()->as_utf8(), jvms()->depth()); + tty->print_cr(" JVM state at this point:"); + for (int i = jvms()->depth(), n = 1; i >= 1; i--, n++) { + ciMethod* m = jvms()->of_depth(i)->method(); + tty->print_cr(" %d) %s.%s", n, m->holder()->name()->as_utf8(), m->name()->as_utf8()); + } + } #endif - return false; // Reached end of inlining + return true; + } + break; + } } - // Acquire method holder as java.lang.Class - ciInstanceKlass* caller_klass = caller_jvms->method()->holder(); - ciInstance* caller_mirror = caller_klass->java_mirror(); - - // Push this as a constant - set_result(makecon(TypeInstPtr::make(caller_mirror))); - #ifndef PRODUCT if ((PrintIntrinsics || PrintInlining || PrintOptoInlining) && Verbose) { - tty->print_cr(" Succeeded: caller = %s.%s, caller depth = %d, depth = %d", caller_klass->name()->as_utf8(), caller_jvms->method()->name()->as_utf8(), caller_depth_type->get_con(), _depth); + tty->print_cr(" Bailing out because caller depth exceeded inlining depth = %d", jvms()->depth()); tty->print_cr(" JVM state at this point:"); - for (int i = _depth; i >= 1; i--) { + for (int i = jvms()->depth(), n = 1; i >= 1; i--, n++) { ciMethod* m = jvms()->of_depth(i)->method(); - tty->print_cr(" %d) %s.%s", i, m->holder()->name()->as_utf8(), m->name()->as_utf8()); + tty->print_cr(" %d) %s.%s", n, m->holder()->name()->as_utf8(), m->name()->as_utf8()); } } #endif - return true; -} - -// Helper routine for above -bool LibraryCallKit::is_method_invoke_or_aux_frame(JVMState* jvms) { - ciMethod* method = jvms->method(); - - // Is this the Method.invoke method itself? - if (method->intrinsic_id() == vmIntrinsics::_invoke) - return true; - - // Is this a helper, defined somewhere underneath MethodAccessorImpl. - ciKlass* k = method->holder(); - if (k->is_instance_klass()) { - ciInstanceKlass* ik = k->as_instance_klass(); - for (; ik != NULL; ik = ik->super()) { - if (ik->name() == ciSymbol::sun_reflect_MethodAccessorImpl() && - ik == env()->find_system_klass(ik->name())) { - return true; - } - } - } - else if (method->is_method_handle_intrinsic() || - method->is_compiled_lambda_form()) { - // This is an internal adapter frame from the MethodHandleCompiler -- skip it - return true; - } - - return false; + + return false; // bail-out; let JVM_GetCallerClass do the work } bool LibraryCallKit::inline_fp_conversions(vmIntrinsics::ID id) {
--- a/hotspot/src/share/vm/prims/jvm.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/prims/jvm.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -30,6 +30,7 @@ #include "classfile/systemDictionary.hpp" #include "classfile/vmSymbols.hpp" #include "gc_interface/collectedHeap.inline.hpp" +#include "interpreter/bytecode.hpp" #include "memory/oopFactory.hpp" #include "memory/universe.inline.hpp" #include "oops/fieldStreams.hpp" @@ -665,8 +666,51 @@ JVM_ENTRY(jclass, JVM_GetCallerClass(JNIEnv* env, int depth)) JVMWrapper("JVM_GetCallerClass"); - Klass* k = thread->security_get_caller_class(depth); - return (k == NULL) ? NULL : (jclass) JNIHandles::make_local(env, k->java_mirror()); + + // Pre-JDK 8 and early builds of JDK 8 don't have a CallerSensitive annotation. + if (SystemDictionary::reflect_CallerSensitive_klass() == NULL) { + Klass* k = thread->security_get_caller_class(depth); + return (k == NULL) ? NULL : (jclass) JNIHandles::make_local(env, k->java_mirror()); + } else { + // Basic handshaking with Java_sun_reflect_Reflection_getCallerClass + assert(depth == -1, "wrong handshake depth"); + } + + // Getting the class of the caller frame. + // + // The call stack at this point looks something like this: + // + // [0] [ @CallerSensitive public sun.reflect.Reflection.getCallerClass ] + // [1] [ @CallerSensitive API.method ] + // [.] [ (skipped intermediate frames) ] + // [n] [ caller ] + vframeStream vfst(thread); + // Cf. LibraryCallKit::inline_native_Reflection_getCallerClass + for (int n = 0; !vfst.at_end(); vfst.security_next(), n++) { + Method* m = vfst.method(); + assert(m != NULL, "sanity"); + switch (n) { + case 0: + // This must only be called from Reflection.getCallerClass + if (m->intrinsic_id() != vmIntrinsics::_getCallerClass) { + THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVM_GetCallerClass must only be called from Reflection.getCallerClass"); + } + // fall-through + case 1: + // Frame 0 and 1 must be caller sensitive. + if (!m->caller_sensitive()) { + THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), err_msg("CallerSensitive annotation expected at frame %d", n)); + } + break; + default: + if (!m->is_ignored_by_security_stack_walk()) { + // We have reached the desired frame; return the holder class. + return (jclass) JNIHandles::make_local(env, m->method_holder()->java_mirror()); + } + break; + } + } + return NULL; JVM_END @@ -3160,11 +3204,24 @@ KlassLink* first = NULL; KlassLink* last = NULL; int depth = 0; - - for(vframeStream vfst(thread); !vfst.at_end(); vfst.security_get_caller_frame(1)) { + vframeStream vfst(thread); + + if (SystemDictionary::reflect_CallerSensitive_klass() != NULL) { + // This must only be called from SecurityManager.getClassContext + Method* m = vfst.method(); + if (!(m->method_holder() == SystemDictionary::SecurityManager_klass() && + m->name() == vmSymbols::getClassContext_name() && + m->signature() == vmSymbols::void_class_array_signature())) { + THROW_MSG_NULL(vmSymbols::java_lang_InternalError(), "JVM_GetClassContext must only be called from SecurityManager.getClassContext"); + } + } + + // Collect method holders + for (; !vfst.at_end(); vfst.security_next()) { + Method* m = vfst.method(); // Native frames are not returned - if (!vfst.method()->is_native()) { - Klass* holder = vfst.method()->method_holder(); + if (!m->is_ignored_by_security_stack_walk() && !m->is_native()) { + Klass* holder = m->method_holder(); assert(holder->is_klass(), "just checking"); depth++; KlassLink* l = new KlassLink(KlassHandle(thread, holder));
--- a/hotspot/src/share/vm/prims/methodHandles.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/prims/methodHandles.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -105,14 +105,15 @@ // import java_lang_invoke_MemberName.* enum { - IS_METHOD = java_lang_invoke_MemberName::MN_IS_METHOD, - IS_CONSTRUCTOR = java_lang_invoke_MemberName::MN_IS_CONSTRUCTOR, - IS_FIELD = java_lang_invoke_MemberName::MN_IS_FIELD, - IS_TYPE = java_lang_invoke_MemberName::MN_IS_TYPE, + IS_METHOD = java_lang_invoke_MemberName::MN_IS_METHOD, + IS_CONSTRUCTOR = java_lang_invoke_MemberName::MN_IS_CONSTRUCTOR, + IS_FIELD = java_lang_invoke_MemberName::MN_IS_FIELD, + IS_TYPE = java_lang_invoke_MemberName::MN_IS_TYPE, + CALLER_SENSITIVE = java_lang_invoke_MemberName::MN_CALLER_SENSITIVE, REFERENCE_KIND_SHIFT = java_lang_invoke_MemberName::MN_REFERENCE_KIND_SHIFT, REFERENCE_KIND_MASK = java_lang_invoke_MemberName::MN_REFERENCE_KIND_MASK, - SEARCH_SUPERCLASSES = java_lang_invoke_MemberName::MN_SEARCH_SUPERCLASSES, - SEARCH_INTERFACES = java_lang_invoke_MemberName::MN_SEARCH_INTERFACES, + SEARCH_SUPERCLASSES = java_lang_invoke_MemberName::MN_SEARCH_SUPERCLASSES, + SEARCH_INTERFACES = java_lang_invoke_MemberName::MN_SEARCH_INTERFACES, ALL_KINDS = IS_METHOD | IS_CONSTRUCTOR | IS_FIELD | IS_TYPE }; @@ -207,10 +208,15 @@ vmindex = m->vtable_index(); } - java_lang_invoke_MemberName::set_flags(mname_oop, flags); + // @CallerSensitive annotation detected + if (m->caller_sensitive()) { + flags |= CALLER_SENSITIVE; + } + + java_lang_invoke_MemberName::set_flags( mname_oop, flags); java_lang_invoke_MemberName::set_vmtarget(mname_oop, m); - java_lang_invoke_MemberName::set_vmindex(mname_oop, vmindex); // vtable/itable index - java_lang_invoke_MemberName::set_clazz(mname_oop, receiver_limit->java_mirror()); + java_lang_invoke_MemberName::set_vmindex( mname_oop, vmindex); // vtable/itable index + java_lang_invoke_MemberName::set_clazz( mname_oop, receiver_limit->java_mirror()); // Note: name and type can be lazily computed by resolve_MemberName, // if Java code needs them as resolved String and MethodType objects. // The clazz must be eagerly stored, because it provides a GC @@ -940,6 +946,7 @@ template(java_lang_invoke_MemberName,MN_IS_CONSTRUCTOR) \ template(java_lang_invoke_MemberName,MN_IS_FIELD) \ template(java_lang_invoke_MemberName,MN_IS_TYPE) \ + template(java_lang_invoke_MemberName,MN_CALLER_SENSITIVE) \ template(java_lang_invoke_MemberName,MN_SEARCH_SUPERCLASSES) \ template(java_lang_invoke_MemberName,MN_SEARCH_INTERFACES) \ template(java_lang_invoke_MemberName,MN_REFERENCE_KIND_SHIFT) \
--- a/hotspot/src/share/vm/prims/unsafe.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/prims/unsafe.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -868,7 +868,7 @@ env->ThrowNew(cls, msg); } -static jclass Unsafe_DefineClass(JNIEnv *env, jstring name, jbyteArray data, int offset, int length, jobject loader, jobject pd) { +static jclass Unsafe_DefineClass_impl(JNIEnv *env, jstring name, jbyteArray data, int offset, int length, jobject loader, jobject pd) { { // Code lifted from JDK 1.3 ClassLoader.c @@ -939,6 +939,15 @@ } +UNSAFE_ENTRY(jclass, Unsafe_DefineClass(JNIEnv *env, jobject unsafe, jstring name, jbyteArray data, int offset, int length, jobject loader, jobject pd)) + UnsafeWrapper("Unsafe_DefineClass"); + { + ThreadToNativeFromVM ttnfv(thread); + return Unsafe_DefineClass_impl(env, name, data, offset, length, loader, pd); + } +UNSAFE_END + + UNSAFE_ENTRY(jclass, Unsafe_DefineClass0(JNIEnv *env, jobject unsafe, jstring name, jbyteArray data, int offset, int length)) UnsafeWrapper("Unsafe_DefineClass"); { @@ -949,20 +958,11 @@ jobject loader = (caller == NULL) ? NULL : JVM_GetClassLoader(env, caller); jobject pd = (caller == NULL) ? NULL : JVM_GetProtectionDomain(env, caller); - return Unsafe_DefineClass(env, name, data, offset, length, loader, pd); + return Unsafe_DefineClass_impl(env, name, data, offset, length, loader, pd); } UNSAFE_END -UNSAFE_ENTRY(jclass, Unsafe_DefineClass1(JNIEnv *env, jobject unsafe, jstring name, jbyteArray data, int offset, int length, jobject loader, jobject pd)) - UnsafeWrapper("Unsafe_DefineClass"); - { - ThreadToNativeFromVM ttnfv(thread); - - return Unsafe_DefineClass(env, name, data, offset, length, loader, pd); - } -UNSAFE_END - #define DAC_Args CLS"[B["OBJ // define a class but do not make it known to the class loader or system dictionary // - host_class: supplies context for linkage, access control, protection domain, and class loader @@ -1323,7 +1323,7 @@ #define THR LANG"Throwable;" #define DC0_Args LANG"String;[BII" -#define DC1_Args DC0_Args LANG"ClassLoader;" "Ljava/security/ProtectionDomain;" +#define DC_Args DC0_Args LANG"ClassLoader;" "Ljava/security/ProtectionDomain;" #define CC (char*) /*cast a literal from (const char*)*/ #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f) @@ -1352,10 +1352,8 @@ -// %%% These are temporarily supported until the SDK sources -// contain the necessarily updated Unsafe.java. +// These are the methods for 1.4.0 static JNINativeMethod methods_140[] = { - {CC"getObject", CC"("OBJ"I)"OBJ"", FN_PTR(Unsafe_GetObject140)}, {CC"putObject", CC"("OBJ"I"OBJ")V", FN_PTR(Unsafe_SetObject140)}, @@ -1381,12 +1379,10 @@ {CC"allocateMemory", CC"(J)"ADR, FN_PTR(Unsafe_AllocateMemory)}, {CC"reallocateMemory", CC"("ADR"J)"ADR, FN_PTR(Unsafe_ReallocateMemory)}, -// {CC"setMemory", CC"("ADR"JB)V", FN_PTR(Unsafe_SetMemory)}, -// {CC"copyMemory", CC"("ADR ADR"J)V", FN_PTR(Unsafe_CopyMemory)}, {CC"freeMemory", CC"("ADR")V", FN_PTR(Unsafe_FreeMemory)}, - {CC"fieldOffset", CC"("FLD")I", FN_PTR(Unsafe_FieldOffset)}, //deprecated - {CC"staticFieldBase", CC"("CLS")"OBJ, FN_PTR(Unsafe_StaticFieldBaseFromClass)}, //deprecated + {CC"fieldOffset", CC"("FLD")I", FN_PTR(Unsafe_FieldOffset)}, + {CC"staticFieldBase", CC"("CLS")"OBJ, FN_PTR(Unsafe_StaticFieldBaseFromClass)}, {CC"ensureClassInitialized",CC"("CLS")V", FN_PTR(Unsafe_EnsureClassInitialized)}, {CC"arrayBaseOffset", CC"("CLS")I", FN_PTR(Unsafe_ArrayBaseOffset)}, {CC"arrayIndexScale", CC"("CLS")I", FN_PTR(Unsafe_ArrayIndexScale)}, @@ -1394,16 +1390,15 @@ {CC"pageSize", CC"()I", FN_PTR(Unsafe_PageSize)}, {CC"defineClass", CC"("DC0_Args")"CLS, FN_PTR(Unsafe_DefineClass0)}, - {CC"defineClass", CC"("DC1_Args")"CLS, FN_PTR(Unsafe_DefineClass1)}, + {CC"defineClass", CC"("DC_Args")"CLS, FN_PTR(Unsafe_DefineClass)}, {CC"allocateInstance", CC"("CLS")"OBJ, FN_PTR(Unsafe_AllocateInstance)}, {CC"monitorEnter", CC"("OBJ")V", FN_PTR(Unsafe_MonitorEnter)}, {CC"monitorExit", CC"("OBJ")V", FN_PTR(Unsafe_MonitorExit)}, {CC"throwException", CC"("THR")V", FN_PTR(Unsafe_ThrowException)} }; -// These are the old methods prior to the JSR 166 changes in 1.5.0 +// These are the methods prior to the JSR 166 changes in 1.5.0 static JNINativeMethod methods_141[] = { - {CC"getObject", CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObject)}, {CC"putObject", CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetObject)}, @@ -1429,8 +1424,6 @@ {CC"allocateMemory", CC"(J)"ADR, FN_PTR(Unsafe_AllocateMemory)}, {CC"reallocateMemory", CC"("ADR"J)"ADR, FN_PTR(Unsafe_ReallocateMemory)}, -// {CC"setMemory", CC"("ADR"JB)V", FN_PTR(Unsafe_SetMemory)}, -// {CC"copyMemory", CC"("ADR ADR"J)V", FN_PTR(Unsafe_CopyMemory)}, {CC"freeMemory", CC"("ADR")V", FN_PTR(Unsafe_FreeMemory)}, {CC"objectFieldOffset", CC"("FLD")J", FN_PTR(Unsafe_ObjectFieldOffset)}, @@ -1443,7 +1436,7 @@ {CC"pageSize", CC"()I", FN_PTR(Unsafe_PageSize)}, {CC"defineClass", CC"("DC0_Args")"CLS, FN_PTR(Unsafe_DefineClass0)}, - {CC"defineClass", CC"("DC1_Args")"CLS, FN_PTR(Unsafe_DefineClass1)}, + {CC"defineClass", CC"("DC_Args")"CLS, FN_PTR(Unsafe_DefineClass)}, {CC"allocateInstance", CC"("CLS")"OBJ, FN_PTR(Unsafe_AllocateInstance)}, {CC"monitorEnter", CC"("OBJ")V", FN_PTR(Unsafe_MonitorEnter)}, {CC"monitorExit", CC"("OBJ")V", FN_PTR(Unsafe_MonitorExit)}, @@ -1451,9 +1444,8 @@ }; -// These are the old methods prior to the JSR 166 changes in 1.6.0 +// These are the methods prior to the JSR 166 changes in 1.6.0 static JNINativeMethod methods_15[] = { - {CC"getObject", CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObject)}, {CC"putObject", CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetObject)}, {CC"getObjectVolatile",CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObjectVolatile)}, @@ -1482,8 +1474,6 @@ {CC"allocateMemory", CC"(J)"ADR, FN_PTR(Unsafe_AllocateMemory)}, {CC"reallocateMemory", CC"("ADR"J)"ADR, FN_PTR(Unsafe_ReallocateMemory)}, -// {CC"setMemory", CC"("ADR"JB)V", FN_PTR(Unsafe_SetMemory)}, -// {CC"copyMemory", CC"("ADR ADR"J)V", FN_PTR(Unsafe_CopyMemory)}, {CC"freeMemory", CC"("ADR")V", FN_PTR(Unsafe_FreeMemory)}, {CC"objectFieldOffset", CC"("FLD")J", FN_PTR(Unsafe_ObjectFieldOffset)}, @@ -1496,7 +1486,7 @@ {CC"pageSize", CC"()I", FN_PTR(Unsafe_PageSize)}, {CC"defineClass", CC"("DC0_Args")"CLS, FN_PTR(Unsafe_DefineClass0)}, - {CC"defineClass", CC"("DC1_Args")"CLS, FN_PTR(Unsafe_DefineClass1)}, + {CC"defineClass", CC"("DC_Args")"CLS, FN_PTR(Unsafe_DefineClass)}, {CC"allocateInstance", CC"("CLS")"OBJ, FN_PTR(Unsafe_AllocateInstance)}, {CC"monitorEnter", CC"("OBJ")V", FN_PTR(Unsafe_MonitorEnter)}, {CC"monitorExit", CC"("OBJ")V", FN_PTR(Unsafe_MonitorExit)}, @@ -1509,14 +1499,69 @@ }; -// These are the correct methods, moving forward: -static JNINativeMethod methods[] = { - +// These are the methods for 1.6.0 and 1.7.0 +static JNINativeMethod methods_16[] = { {CC"getObject", CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObject)}, {CC"putObject", CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetObject)}, {CC"getObjectVolatile",CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObjectVolatile)}, {CC"putObjectVolatile",CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetObjectVolatile)}, + DECLARE_GETSETOOP(Boolean, Z), + DECLARE_GETSETOOP(Byte, B), + DECLARE_GETSETOOP(Short, S), + DECLARE_GETSETOOP(Char, C), + DECLARE_GETSETOOP(Int, I), + DECLARE_GETSETOOP(Long, J), + DECLARE_GETSETOOP(Float, F), + DECLARE_GETSETOOP(Double, D), + + DECLARE_GETSETNATIVE(Byte, B), + DECLARE_GETSETNATIVE(Short, S), + DECLARE_GETSETNATIVE(Char, C), + DECLARE_GETSETNATIVE(Int, I), + DECLARE_GETSETNATIVE(Long, J), + DECLARE_GETSETNATIVE(Float, F), + DECLARE_GETSETNATIVE(Double, D), + + {CC"getAddress", CC"("ADR")"ADR, FN_PTR(Unsafe_GetNativeAddress)}, + {CC"putAddress", CC"("ADR""ADR")V", FN_PTR(Unsafe_SetNativeAddress)}, + + {CC"allocateMemory", CC"(J)"ADR, FN_PTR(Unsafe_AllocateMemory)}, + {CC"reallocateMemory", CC"("ADR"J)"ADR, FN_PTR(Unsafe_ReallocateMemory)}, + {CC"freeMemory", CC"("ADR")V", FN_PTR(Unsafe_FreeMemory)}, + + {CC"objectFieldOffset", CC"("FLD")J", FN_PTR(Unsafe_ObjectFieldOffset)}, + {CC"staticFieldOffset", CC"("FLD")J", FN_PTR(Unsafe_StaticFieldOffset)}, + {CC"staticFieldBase", CC"("FLD")"OBJ, FN_PTR(Unsafe_StaticFieldBaseFromField)}, + {CC"ensureClassInitialized",CC"("CLS")V", FN_PTR(Unsafe_EnsureClassInitialized)}, + {CC"arrayBaseOffset", CC"("CLS")I", FN_PTR(Unsafe_ArrayBaseOffset)}, + {CC"arrayIndexScale", CC"("CLS")I", FN_PTR(Unsafe_ArrayIndexScale)}, + {CC"addressSize", CC"()I", FN_PTR(Unsafe_AddressSize)}, + {CC"pageSize", CC"()I", FN_PTR(Unsafe_PageSize)}, + + {CC"defineClass", CC"("DC0_Args")"CLS, FN_PTR(Unsafe_DefineClass0)}, + {CC"defineClass", CC"("DC_Args")"CLS, FN_PTR(Unsafe_DefineClass)}, + {CC"allocateInstance", CC"("CLS")"OBJ, FN_PTR(Unsafe_AllocateInstance)}, + {CC"monitorEnter", CC"("OBJ")V", FN_PTR(Unsafe_MonitorEnter)}, + {CC"monitorExit", CC"("OBJ")V", FN_PTR(Unsafe_MonitorExit)}, + {CC"tryMonitorEnter", CC"("OBJ")Z", FN_PTR(Unsafe_TryMonitorEnter)}, + {CC"throwException", CC"("THR")V", FN_PTR(Unsafe_ThrowException)}, + {CC"compareAndSwapObject", CC"("OBJ"J"OBJ""OBJ")Z", FN_PTR(Unsafe_CompareAndSwapObject)}, + {CC"compareAndSwapInt", CC"("OBJ"J""I""I"")Z", FN_PTR(Unsafe_CompareAndSwapInt)}, + {CC"compareAndSwapLong", CC"("OBJ"J""J""J"")Z", FN_PTR(Unsafe_CompareAndSwapLong)}, + {CC"putOrderedObject", CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetOrderedObject)}, + {CC"putOrderedInt", CC"("OBJ"JI)V", FN_PTR(Unsafe_SetOrderedInt)}, + {CC"putOrderedLong", CC"("OBJ"JJ)V", FN_PTR(Unsafe_SetOrderedLong)}, + {CC"park", CC"(ZJ)V", FN_PTR(Unsafe_Park)}, + {CC"unpark", CC"("OBJ")V", FN_PTR(Unsafe_Unpark)} +}; + +// These are the methods for 1.8.0 +static JNINativeMethod methods_18[] = { + {CC"getObject", CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObject)}, + {CC"putObject", CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetObject)}, + {CC"getObjectVolatile",CC"("OBJ"J)"OBJ"", FN_PTR(Unsafe_GetObjectVolatile)}, + {CC"putObjectVolatile",CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetObjectVolatile)}, DECLARE_GETSETOOP(Boolean, Z), DECLARE_GETSETOOP(Byte, B), @@ -1540,8 +1585,6 @@ {CC"allocateMemory", CC"(J)"ADR, FN_PTR(Unsafe_AllocateMemory)}, {CC"reallocateMemory", CC"("ADR"J)"ADR, FN_PTR(Unsafe_ReallocateMemory)}, -// {CC"setMemory", CC"("ADR"JB)V", FN_PTR(Unsafe_SetMemory)}, -// {CC"copyMemory", CC"("ADR ADR"J)V", FN_PTR(Unsafe_CopyMemory)}, {CC"freeMemory", CC"("ADR")V", FN_PTR(Unsafe_FreeMemory)}, {CC"objectFieldOffset", CC"("FLD")J", FN_PTR(Unsafe_ObjectFieldOffset)}, @@ -1553,8 +1596,7 @@ {CC"addressSize", CC"()I", FN_PTR(Unsafe_AddressSize)}, {CC"pageSize", CC"()I", FN_PTR(Unsafe_PageSize)}, - {CC"defineClass", CC"("DC0_Args")"CLS, FN_PTR(Unsafe_DefineClass0)}, - {CC"defineClass", CC"("DC1_Args")"CLS, FN_PTR(Unsafe_DefineClass1)}, + {CC"defineClass", CC"("DC_Args")"CLS, FN_PTR(Unsafe_DefineClass)}, {CC"allocateInstance", CC"("CLS")"OBJ, FN_PTR(Unsafe_AllocateInstance)}, {CC"monitorEnter", CC"("OBJ")V", FN_PTR(Unsafe_MonitorEnter)}, {CC"monitorExit", CC"("OBJ")V", FN_PTR(Unsafe_MonitorExit)}, @@ -1566,23 +1608,12 @@ {CC"putOrderedObject", CC"("OBJ"J"OBJ")V", FN_PTR(Unsafe_SetOrderedObject)}, {CC"putOrderedInt", CC"("OBJ"JI)V", FN_PTR(Unsafe_SetOrderedInt)}, {CC"putOrderedLong", CC"("OBJ"JJ)V", FN_PTR(Unsafe_SetOrderedLong)}, - {CC"loadFence", CC"()V", FN_PTR(Unsafe_LoadFence)}, - {CC"storeFence", CC"()V", FN_PTR(Unsafe_StoreFence)}, - {CC"fullFence", CC"()V", FN_PTR(Unsafe_FullFence)}, {CC"park", CC"(ZJ)V", FN_PTR(Unsafe_Park)}, {CC"unpark", CC"("OBJ")V", FN_PTR(Unsafe_Unpark)} - -// {CC"getLoadAverage", CC"([DI)I", FN_PTR(Unsafe_Loadavg)}, - -// {CC"prefetchRead", CC"("OBJ"J)V", FN_PTR(Unsafe_PrefetchRead)}, -// {CC"prefetchWrite", CC"("OBJ"J)V", FN_PTR(Unsafe_PrefetchWrite)} -// {CC"prefetchReadStatic", CC"("OBJ"J)V", FN_PTR(Unsafe_PrefetchRead)}, -// {CC"prefetchWriteStatic",CC"("OBJ"J)V", FN_PTR(Unsafe_PrefetchWrite)} - }; JNINativeMethod loadavg_method[] = { - {CC"getLoadAverage", CC"([DI)I", FN_PTR(Unsafe_Loadavg)} + {CC"getLoadAverage", CC"([DI)I", FN_PTR(Unsafe_Loadavg)} }; JNINativeMethod prefetch_methods[] = { @@ -1592,7 +1623,7 @@ {CC"prefetchWriteStatic",CC"("OBJ"J)V", FN_PTR(Unsafe_PrefetchWrite)} }; -JNINativeMethod memcopy_methods[] = { +JNINativeMethod memcopy_methods_17[] = { {CC"copyMemory", CC"("OBJ"J"OBJ"JJ)V", FN_PTR(Unsafe_CopyMemory2)}, {CC"setMemory", CC"("OBJ"JJB)V", FN_PTR(Unsafe_SetMemory2)} }; @@ -1610,6 +1641,12 @@ {CC"shouldBeInitialized",CC"("CLS")Z", FN_PTR(Unsafe_ShouldBeInitialized)}, }; +JNINativeMethod fence_methods[] = { + {CC"loadFence", CC"()V", FN_PTR(Unsafe_LoadFence)}, + {CC"storeFence", CC"()V", FN_PTR(Unsafe_StoreFence)}, + {CC"fullFence", CC"()V", FN_PTR(Unsafe_FullFence)}, +}; + #undef CC #undef FN_PTR @@ -1622,12 +1659,32 @@ #undef MTH #undef THR #undef DC0_Args -#undef DC1_Args +#undef DC_Args #undef DECLARE_GETSETOOP #undef DECLARE_GETSETNATIVE +/** + * Helper method to register native methods. + */ +static bool register_natives(const char* message, JNIEnv* env, jclass clazz, const JNINativeMethod* methods, jint nMethods) { + int status = env->RegisterNatives(clazz, methods, nMethods); + if (status < 0 || env->ExceptionOccurred()) { + if (PrintMiscellaneous && (Verbose || WizardMode)) { + tty->print_cr("Unsafe: failed registering %s", message); + } + env->ExceptionClear(); + return false; + } else { + if (PrintMiscellaneous && (Verbose || WizardMode)) { + tty->print_cr("Unsafe: successfully registered %s", message); + } + return true; + } +} + + // This one function is exported, used by NativeLookup. // The Unsafe_xxx functions above are called only from the interpreter. // The optimizer looks at names and signatures to recognize @@ -1637,83 +1694,57 @@ UnsafeWrapper("JVM_RegisterUnsafeMethods"); { ThreadToNativeFromVM ttnfv(thread); - { - env->RegisterNatives(unsafecls, loadavg_method, sizeof(loadavg_method)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.6 Unsafe.loadavg not found."); - } - env->ExceptionClear(); - } - } + + // Unsafe methods { - env->RegisterNatives(unsafecls, prefetch_methods, sizeof(prefetch_methods)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.6 Unsafe.prefetchRead/Write not found."); - } - env->ExceptionClear(); + bool success = false; + // We need to register the 1.6 methods first because the 1.8 methods would register fine on 1.7 and 1.6 + if (!success) { + success = register_natives("1.6 methods", env, unsafecls, methods_16, sizeof(methods_16)/sizeof(JNINativeMethod)); + } + if (!success) { + success = register_natives("1.8 methods", env, unsafecls, methods_18, sizeof(methods_18)/sizeof(JNINativeMethod)); + } + if (!success) { + success = register_natives("1.5 methods", env, unsafecls, methods_15, sizeof(methods_15)/sizeof(JNINativeMethod)); + } + if (!success) { + success = register_natives("1.4.1 methods", env, unsafecls, methods_141, sizeof(methods_141)/sizeof(JNINativeMethod)); } + if (!success) { + success = register_natives("1.4.0 methods", env, unsafecls, methods_140, sizeof(methods_140)/sizeof(JNINativeMethod)); + } + guarantee(success, "register unsafe natives"); } + + // Unsafe.getLoadAverage + register_natives("1.6 loadavg method", env, unsafecls, loadavg_method, sizeof(loadavg_method)/sizeof(JNINativeMethod)); + + // Prefetch methods + register_natives("1.6 prefetch methods", env, unsafecls, prefetch_methods, sizeof(prefetch_methods)/sizeof(JNINativeMethod)); + + // Memory copy methods { - env->RegisterNatives(unsafecls, memcopy_methods, sizeof(memcopy_methods)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.7 Unsafe.copyMemory not found."); - } - env->ExceptionClear(); - env->RegisterNatives(unsafecls, memcopy_methods_15, sizeof(memcopy_methods_15)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.5 Unsafe.copyMemory not found."); - } - env->ExceptionClear(); - } + bool success = false; + if (!success) { + success = register_natives("1.7 memory copy methods", env, unsafecls, memcopy_methods_17, sizeof(memcopy_methods_17)/sizeof(JNINativeMethod)); + } + if (!success) { + success = register_natives("1.5 memory copy methods", env, unsafecls, memcopy_methods_15, sizeof(memcopy_methods_15)/sizeof(JNINativeMethod)); } } + + // Unsafe.defineAnonymousClass if (EnableInvokeDynamic) { - env->RegisterNatives(unsafecls, anonk_methods, sizeof(anonk_methods)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.7 Unsafe.defineClass (anonymous version) not found."); - } - env->ExceptionClear(); - } - } - if (EnableInvokeDynamic) { - env->RegisterNatives(unsafecls, lform_methods, sizeof(lform_methods)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.7 LambdaForm support in Unsafe not found."); - } - env->ExceptionClear(); - } + register_natives("1.7 define anonymous class method", env, unsafecls, anonk_methods, sizeof(anonk_methods)/sizeof(JNINativeMethod)); } - int status = env->RegisterNatives(unsafecls, methods, sizeof(methods)/sizeof(JNINativeMethod)); - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.6 version of Unsafe not found."); - } - env->ExceptionClear(); - // %%% For now, be backward compatible with an older class: - status = env->RegisterNatives(unsafecls, methods_15, sizeof(methods_15)/sizeof(JNINativeMethod)); + + // Unsafe.shouldBeInitialized + if (EnableInvokeDynamic) { + register_natives("1.7 LambdaForm support", env, unsafecls, lform_methods, sizeof(lform_methods)/sizeof(JNINativeMethod)); } - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.5 version of Unsafe not found."); - } - env->ExceptionClear(); - // %%% For now, be backward compatible with an older class: - status = env->RegisterNatives(unsafecls, methods_141, sizeof(methods_141)/sizeof(JNINativeMethod)); - } - if (env->ExceptionOccurred()) { - if (PrintMiscellaneous && (Verbose || WizardMode)) { - tty->print_cr("Warning: SDK 1.4.1 version of Unsafe not found."); - } - env->ExceptionClear(); - // %%% For now, be backward compatible with an older class: - status = env->RegisterNatives(unsafecls, methods_140, sizeof(methods_140)/sizeof(JNINativeMethod)); - } - guarantee(status == 0, "register unsafe natives"); + + // Fence methods + register_natives("1.8 fence methods", env, unsafecls, fence_methods, sizeof(fence_methods)/sizeof(JNINativeMethod)); } JVM_END
--- a/hotspot/src/share/vm/runtime/vframe.cpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/runtime/vframe.cpp Mon Mar 25 17:13:26 2013 -0700 @@ -391,40 +391,27 @@ // Step back n frames, skip any pseudo frames in between. // This function is used in Class.forName, Class.newInstance, Method.Invoke, // AccessController.doPrivileged. -// -// NOTE that in JDK 1.4 this has been exposed to Java as -// sun.reflect.Reflection.getCallerClass(), which can be inlined. -// Inlined versions must match this routine's logic. -// Native method prefixing logic does not need to match since -// the method names don't match and inlining will not occur. -// See, for example, -// Parse::inline_native_Reflection_getCallerClass in -// opto/library_call.cpp. void vframeStreamCommon::security_get_caller_frame(int depth) { - bool use_new_reflection = JDK_Version::is_gte_jdk14x_version() && UseNewReflection; + assert(depth >= 0, err_msg("invalid depth: %d", depth)); + for (int n = 0; !at_end(); security_next()) { + if (!method()->is_ignored_by_security_stack_walk()) { + if (n == depth) { + // We have reached the desired depth; return. + return; + } + n++; // this is a non-skipped frame; count it against the depth + } + } + // NOTE: At this point there were not enough frames on the stack + // to walk to depth. Callers of this method have to check for at_end. +} - while (!at_end()) { - if (Universe::reflect_invoke_cache()->is_same_method(method())) { - // This is Method.invoke() -- skip it - } else if (use_new_reflection && - method()->method_holder() - ->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass())) { - // This is an auxilary frame -- skip it - } else if (method()->is_method_handle_intrinsic() || - method()->is_compiled_lambda_form()) { - // This is an internal adapter frame for method handles -- skip it - } else { - // This is non-excluded frame, we need to count it against the depth - if (depth-- <= 0) { - // we have reached the desired depth, we are done - break; - } - } - if (method()->is_prefixed_native()) { - skip_prefixed_method_and_wrappers(); - } else { - next(); - } + +void vframeStreamCommon::security_next() { + if (method()->is_prefixed_native()) { + skip_prefixed_method_and_wrappers(); // calls next() + } else { + next(); } }
--- a/hotspot/src/share/vm/runtime/vframe.hpp Sun Mar 24 12:43:13 2013 -0700 +++ b/hotspot/src/share/vm/runtime/vframe.hpp Mon Mar 25 17:13:26 2013 -0700 @@ -336,6 +336,7 @@ _frame = _frame.sender(&_reg_map); } while (!fill_from_frame()); } + void security_next(); bool at_end() const { return _mode == at_end_mode; }