graal-compiler: src/share/vm/prims/nativeLookup.cpp annotate

annotate src/share/vm/prims/nativeLookup.cpp @ 5915:2d503de963b3

7148152: Add whitebox testing API to HotSpot Summary: Add an internal testing API to HotSpot to enable more targeted testing of vm functionality Reviewed-by: phh, dholmes

author	mgerdin
date	Thu, 23 Feb 2012 14:58:35 +0100
parents	0382d2b469b2
children	93c71eb28866

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
4873 0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1142 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1142 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1142 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #include "classfile/javaClasses.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27 #include "classfile/systemDictionary.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "classfile/vmSymbols.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	29 #include "memory/oopFactory.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30 #include "memory/resourceArea.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	31 #include "memory/universe.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	32 #include "oops/instanceKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	33 #include "oops/methodOop.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	34 #include "oops/oop.inline.hpp"
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	35 #include "oops/symbol.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	36 #include "prims/jvm_misc.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	37 #include "prims/nativeLookup.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	38 #include "runtime/arguments.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	39 #include "runtime/handles.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	40 #include "runtime/javaCalls.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	41 #include "runtime/sharedRuntime.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	42 #include "runtime/signature.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	43 #ifdef TARGET_OS_FAMILY_linux
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	44 # include "os_linux.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	45 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	46 #ifdef TARGET_OS_FAMILY_solaris
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	47 # include "os_solaris.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	48 #endif
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	49 #ifdef TARGET_OS_FAMILY_windows
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	50 # include "os_windows.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	51 #endif
3960 f08d439fab8c 7089790: integrate bsd-port changes never parents: 2460 diff changeset	52 #ifdef TARGET_OS_FAMILY_bsd
f08d439fab8c 7089790: integrate bsd-port changes never parents: 2460 diff changeset	53 # include "os_bsd.inline.hpp"
f08d439fab8c 7089790: integrate bsd-port changes never parents: 2460 diff changeset	54 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	55
a61af66fc99e Initial load duke parents: diff changeset	56
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	57 static void mangle_name_on(outputStream* st, Symbol* name, int begin, int end) {
0 a61af66fc99e Initial load duke parents: diff changeset	58 char* bytes = (char*)name->bytes() + begin;
a61af66fc99e Initial load duke parents: diff changeset	59 char* end_bytes = (char*)name->bytes() + end;
a61af66fc99e Initial load duke parents: diff changeset	60 while (bytes < end_bytes) {
a61af66fc99e Initial load duke parents: diff changeset	61 jchar c;
a61af66fc99e Initial load duke parents: diff changeset	62 bytes = UTF8::next(bytes, &c);
a61af66fc99e Initial load duke parents: diff changeset	63 if (c <= 0x7f && isalnum(c)) {
a61af66fc99e Initial load duke parents: diff changeset	64 st->put((char) c);
a61af66fc99e Initial load duke parents: diff changeset	65 } else {
a61af66fc99e Initial load duke parents: diff changeset	66 if (c == '_') st->print("_1");
a61af66fc99e Initial load duke parents: diff changeset	67 else if (c == '/') st->print("_");
a61af66fc99e Initial load duke parents: diff changeset	68 else if (c == ';') st->print("_2");
a61af66fc99e Initial load duke parents: diff changeset	69 else if (c == '[') st->print("_3");
a61af66fc99e Initial load duke parents: diff changeset	70 else st->print("_%.5x", c);
a61af66fc99e Initial load duke parents: diff changeset	71 }
a61af66fc99e Initial load duke parents: diff changeset	72 }
a61af66fc99e Initial load duke parents: diff changeset	73 }
a61af66fc99e Initial load duke parents: diff changeset	74
a61af66fc99e Initial load duke parents: diff changeset	75
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	76 static void mangle_name_on(outputStream* st, Symbol* name) {
0 a61af66fc99e Initial load duke parents: diff changeset	77 mangle_name_on(st, name, 0, name->utf8_length());
a61af66fc99e Initial load duke parents: diff changeset	78 }
a61af66fc99e Initial load duke parents: diff changeset	79
a61af66fc99e Initial load duke parents: diff changeset	80
a61af66fc99e Initial load duke parents: diff changeset	81 char* NativeLookup::pure_jni_name(methodHandle method) {
a61af66fc99e Initial load duke parents: diff changeset	82 stringStream st;
a61af66fc99e Initial load duke parents: diff changeset	83 // Prefix
a61af66fc99e Initial load duke parents: diff changeset	84 st.print("Java_");
a61af66fc99e Initial load duke parents: diff changeset	85 // Klass name
a61af66fc99e Initial load duke parents: diff changeset	86 mangle_name_on(&st, method->klass_name());
a61af66fc99e Initial load duke parents: diff changeset	87 st.print("_");
a61af66fc99e Initial load duke parents: diff changeset	88 // Method name
a61af66fc99e Initial load duke parents: diff changeset	89 mangle_name_on(&st, method->name());
a61af66fc99e Initial load duke parents: diff changeset	90 return st.as_string();
a61af66fc99e Initial load duke parents: diff changeset	91 }
a61af66fc99e Initial load duke parents: diff changeset	92
a61af66fc99e Initial load duke parents: diff changeset	93
4873 0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	94 char* NativeLookup::critical_jni_name(methodHandle method) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	95 stringStream st;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	96 // Prefix
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	97 st.print("JavaCritical_");
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	98 // Klass name
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	99 mangle_name_on(&st, method->klass_name());
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	100 st.print("_");
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	101 // Method name
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	102 mangle_name_on(&st, method->name());
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	103 return st.as_string();
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	104 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	105
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	106
0 a61af66fc99e Initial load duke parents: diff changeset	107 char* NativeLookup::long_jni_name(methodHandle method) {
a61af66fc99e Initial load duke parents: diff changeset	108 // Signature ignore the wrapping parenteses and the trailing return type
a61af66fc99e Initial load duke parents: diff changeset	109 stringStream st;
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	110 Symbol* signature = method->signature();
0 a61af66fc99e Initial load duke parents: diff changeset	111 st.print("__");
a61af66fc99e Initial load duke parents: diff changeset	112 // find ')'
a61af66fc99e Initial load duke parents: diff changeset	113 int end;
a61af66fc99e Initial load duke parents: diff changeset	114 for (end = 0; end < signature->utf8_length() && signature->byte_at(end) != ')'; end++);
a61af66fc99e Initial load duke parents: diff changeset	115 // skip first '('
a61af66fc99e Initial load duke parents: diff changeset	116 mangle_name_on(&st, signature, 1, end);
a61af66fc99e Initial load duke parents: diff changeset	117 return st.as_string();
a61af66fc99e Initial load duke parents: diff changeset	118 }
a61af66fc99e Initial load duke parents: diff changeset	119
a61af66fc99e Initial load duke parents: diff changeset	120 extern "C" {
a61af66fc99e Initial load duke parents: diff changeset	121 void JNICALL JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafecls);
710 e5b0439ef4ae 6655638: dynamic languages need method handles jrose parents: 0 diff changeset	122 void JNICALL JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass unsafecls);
0 a61af66fc99e Initial load duke parents: diff changeset	123 void JNICALL JVM_RegisterPerfMethods(JNIEnv *env, jclass perfclass);
5915 2d503de963b3 7148152: Add whitebox testing API to HotSpot mgerdin parents: 4873 diff changeset	124 void JNICALL JVM_RegisterWhiteBoxMethods(JNIEnv *env, jclass wbclass);
0 a61af66fc99e Initial load duke parents: diff changeset	125 }
a61af66fc99e Initial load duke parents: diff changeset	126
2356 72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	127 #define CC (char) / cast a literal from (const char) /
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	128 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	129
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	130 static JNINativeMethod lookup_special_native_methods[] = {
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	131 // Next two functions only exist for compatibility with 1.3.1 and earlier.
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	132 { CC"Java_java_io_ObjectOutputStream_getPrimitiveFieldValues", NULL, FN_PTR(JVM_GetPrimitiveFieldValues) }, // intercept ObjectOutputStream getPrimitiveFieldValues for faster serialization
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	133 { CC"Java_java_io_ObjectInputStream_setPrimitiveFieldValues", NULL, FN_PTR(JVM_SetPrimitiveFieldValues) }, // intercept ObjectInputStream setPrimitiveFieldValues for faster serialization
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	134
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	135 { CC"Java_sun_misc_Unsafe_registerNatives", NULL, FN_PTR(JVM_RegisterUnsafeMethods) },
2357 8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names jrose parents: 2356 diff changeset	136 { CC"Java_java_lang_invoke_MethodHandleNatives_registerNatives", NULL, FN_PTR(JVM_RegisterMethodHandleMethods) },
5915 2d503de963b3 7148152: Add whitebox testing API to HotSpot mgerdin parents: 4873 diff changeset	137 { CC"Java_sun_misc_Perf_registerNatives", NULL, FN_PTR(JVM_RegisterPerfMethods) },
2d503de963b3 7148152: Add whitebox testing API to HotSpot mgerdin parents: 4873 diff changeset	138 { CC"Java_sun_hotspot_WhiteBox_registerNatives", NULL, FN_PTR(JVM_RegisterWhiteBoxMethods) },
2356 72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	139 };
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	140
0 a61af66fc99e Initial load duke parents: diff changeset	141 static address lookup_special_native(char* jni_name) {
2356 72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	142 int i = !JDK_Version::is_gte_jdk14x_version() ? 0 : 2; // see comment in lookup_special_native_methods
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	143 int count = sizeof(lookup_special_native_methods) / sizeof(JNINativeMethod);
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	144 for (; i < count; i++) {
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	145 // NB: To ignore the jni prefix and jni postfix strstr is used matching.
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	146 if (strstr(jni_name, lookup_special_native_methods[i].name) != NULL) {
72dee110246f 6839872: remove implementation inheritance from JSR 292 APIs jrose parents: 2177 diff changeset	147 return CAST_FROM_FN_PTR(address, lookup_special_native_methods[i].fnPtr);
0 a61af66fc99e Initial load duke parents: diff changeset	148 }
a61af66fc99e Initial load duke parents: diff changeset	149 }
a61af66fc99e Initial load duke parents: diff changeset	150 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	151 }
a61af66fc99e Initial load duke parents: diff changeset	152
a61af66fc99e Initial load duke parents: diff changeset	153 address NativeLookup::lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	154 address entry;
a61af66fc99e Initial load duke parents: diff changeset	155 // Compute complete JNI name for style
a61af66fc99e Initial load duke parents: diff changeset	156 stringStream st;
a61af66fc99e Initial load duke parents: diff changeset	157 if (os_style) os::print_jni_name_prefix_on(&st, args_size);
a61af66fc99e Initial load duke parents: diff changeset	158 st.print_raw(pure_name);
a61af66fc99e Initial load duke parents: diff changeset	159 st.print_raw(long_name);
a61af66fc99e Initial load duke parents: diff changeset	160 if (os_style) os::print_jni_name_suffix_on(&st, args_size);
a61af66fc99e Initial load duke parents: diff changeset	161 char* jni_name = st.as_string();
a61af66fc99e Initial load duke parents: diff changeset	162
a61af66fc99e Initial load duke parents: diff changeset	163 // If the loader is null we have a system class, so we attempt a lookup in
a61af66fc99e Initial load duke parents: diff changeset	164 // the native Java library. This takes care of any bootstrapping problems.
a61af66fc99e Initial load duke parents: diff changeset	165 // Note: It is critical for bootstrapping that Java_java_lang_ClassLoader_00024NativeLibrary_find
a61af66fc99e Initial load duke parents: diff changeset	166 // gets found the first time around - otherwise an infinite loop can occure. This is
a61af66fc99e Initial load duke parents: diff changeset	167 // another VM/library dependency
a61af66fc99e Initial load duke parents: diff changeset	168 Handle loader(THREAD,
a61af66fc99e Initial load duke parents: diff changeset	169 instanceKlass::cast(method->method_holder())->class_loader());
a61af66fc99e Initial load duke parents: diff changeset	170 if (loader.is_null()) {
a61af66fc99e Initial load duke parents: diff changeset	171 entry = lookup_special_native(jni_name);
a61af66fc99e Initial load duke parents: diff changeset	172 if (entry == NULL) {
1980 828eafbd85cc 6348631: remove the use of the HPI library from Hotspot ikrylov parents: 1972 diff changeset	173 entry = (address) os::dll_lookup(os::native_java_library(), jni_name);
0 a61af66fc99e Initial load duke parents: diff changeset	174 }
a61af66fc99e Initial load duke parents: diff changeset	175 if (entry != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	176 in_base_library = true;
a61af66fc99e Initial load duke parents: diff changeset	177 return entry;
a61af66fc99e Initial load duke parents: diff changeset	178 }
a61af66fc99e Initial load duke parents: diff changeset	179 }
a61af66fc99e Initial load duke parents: diff changeset	180
a61af66fc99e Initial load duke parents: diff changeset	181 // Otherwise call static method findNative in ClassLoader
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 710 diff changeset	182 KlassHandle klass (THREAD, SystemDictionary::ClassLoader_klass());
0 a61af66fc99e Initial load duke parents: diff changeset	183 Handle name_arg = java_lang_String::create_from_str(jni_name, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	184
a61af66fc99e Initial load duke parents: diff changeset	185 JavaValue result(T_LONG);
a61af66fc99e Initial load duke parents: diff changeset	186 JavaCalls::call_static(&result,
a61af66fc99e Initial load duke parents: diff changeset	187 klass,
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	188 vmSymbols::findNative_name(),
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	189 vmSymbols::classloader_string_long_signature(),
0 a61af66fc99e Initial load duke parents: diff changeset	190 // Arguments
a61af66fc99e Initial load duke parents: diff changeset	191 loader,
a61af66fc99e Initial load duke parents: diff changeset	192 name_arg,
a61af66fc99e Initial load duke parents: diff changeset	193 CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	194 entry = (address) (intptr_t) result.get_jlong();
a61af66fc99e Initial load duke parents: diff changeset	195
a61af66fc99e Initial load duke parents: diff changeset	196 if (entry == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	197 // findNative didn't find it, if there are any agent libraries look in them
a61af66fc99e Initial load duke parents: diff changeset	198 AgentLibrary* agent;
a61af66fc99e Initial load duke parents: diff changeset	199 for (agent = Arguments::agents(); agent != NULL; agent = agent->next()) {
1980 828eafbd85cc 6348631: remove the use of the HPI library from Hotspot ikrylov parents: 1972 diff changeset	200 entry = (address) os::dll_lookup(agent->os_lib(), jni_name);
0 a61af66fc99e Initial load duke parents: diff changeset	201 if (entry != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	202 return entry;
a61af66fc99e Initial load duke parents: diff changeset	203 }
a61af66fc99e Initial load duke parents: diff changeset	204 }
a61af66fc99e Initial load duke parents: diff changeset	205 }
a61af66fc99e Initial load duke parents: diff changeset	206
a61af66fc99e Initial load duke parents: diff changeset	207 return entry;
a61af66fc99e Initial load duke parents: diff changeset	208 }
a61af66fc99e Initial load duke parents: diff changeset	209
a61af66fc99e Initial load duke parents: diff changeset	210
4873 0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	211 address NativeLookup::lookup_critical_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	212 if (!method->has_native_function()) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	213 return NULL;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	214 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	215
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	216 address current_entry = method->native_function();
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	217
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	218 char dll_name[JVM_MAXPATHLEN];
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	219 int offset;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	220 if (os::dll_address_to_library_name(current_entry, dll_name, sizeof(dll_name), &offset)) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	221 char ebuf[32];
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	222 void* dll = os::dll_load(dll_name, ebuf, sizeof(ebuf));
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	223 if (dll != NULL) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	224 // Compute complete JNI name for style
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	225 stringStream st;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	226 if (os_style) os::print_jni_name_prefix_on(&st, args_size);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	227 st.print_raw(pure_name);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	228 st.print_raw(long_name);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	229 if (os_style) os::print_jni_name_suffix_on(&st, args_size);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	230 char* jni_name = st.as_string();
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	231 return (address)os::dll_lookup(dll, jni_name);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	232 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	233 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	234
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	235 return NULL;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	236 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	237
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	238
0 a61af66fc99e Initial load duke parents: diff changeset	239 // Check all the formats of native implementation name to see if there is one
a61af66fc99e Initial load duke parents: diff changeset	240 // for the specified method.
a61af66fc99e Initial load duke parents: diff changeset	241 address NativeLookup::lookup_entry(methodHandle method, bool& in_base_library, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	242 address entry = NULL;
a61af66fc99e Initial load duke parents: diff changeset	243 in_base_library = false;
a61af66fc99e Initial load duke parents: diff changeset	244 // Compute pure name
a61af66fc99e Initial load duke parents: diff changeset	245 char* pure_name = pure_jni_name(method);
a61af66fc99e Initial load duke parents: diff changeset	246
a61af66fc99e Initial load duke parents: diff changeset	247 // Compute argument size
a61af66fc99e Initial load duke parents: diff changeset	248 int args_size = 1 // JNIEnv
a61af66fc99e Initial load duke parents: diff changeset	249 + (method->is_static() ? 1 : 0) // class for static methods
a61af66fc99e Initial load duke parents: diff changeset	250 + method->size_of_parameters(); // actual parameters
a61af66fc99e Initial load duke parents: diff changeset	251
a61af66fc99e Initial load duke parents: diff changeset	252
a61af66fc99e Initial load duke parents: diff changeset	253 // 1) Try JNI short style
a61af66fc99e Initial load duke parents: diff changeset	254 entry = lookup_style(method, pure_name, "", args_size, true, in_base_library, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	255 if (entry != NULL) return entry;
a61af66fc99e Initial load duke parents: diff changeset	256
a61af66fc99e Initial load duke parents: diff changeset	257 // Compute long name
a61af66fc99e Initial load duke parents: diff changeset	258 char* long_name = long_jni_name(method);
a61af66fc99e Initial load duke parents: diff changeset	259
a61af66fc99e Initial load duke parents: diff changeset	260 // 2) Try JNI long style
a61af66fc99e Initial load duke parents: diff changeset	261 entry = lookup_style(method, pure_name, long_name, args_size, true, in_base_library, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	262 if (entry != NULL) return entry;
a61af66fc99e Initial load duke parents: diff changeset	263
a61af66fc99e Initial load duke parents: diff changeset	264 // 3) Try JNI short style without os prefix/suffix
a61af66fc99e Initial load duke parents: diff changeset	265 entry = lookup_style(method, pure_name, "", args_size, false, in_base_library, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	266 if (entry != NULL) return entry;
a61af66fc99e Initial load duke parents: diff changeset	267
a61af66fc99e Initial load duke parents: diff changeset	268 // 4) Try JNI long style without os prefix/suffix
a61af66fc99e Initial load duke parents: diff changeset	269 entry = lookup_style(method, pure_name, long_name, args_size, false, in_base_library, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	270
a61af66fc99e Initial load duke parents: diff changeset	271 return entry; // NULL indicates not found
a61af66fc99e Initial load duke parents: diff changeset	272 }
a61af66fc99e Initial load duke parents: diff changeset	273
4873 0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	274 // Check all the formats of native implementation name to see if there is one
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	275 // for the specified method.
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	276 address NativeLookup::lookup_critical_entry(methodHandle method) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	277 if (!CriticalJNINatives) return NULL;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	278
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	279 if (method->is_synchronized() \|\|
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	280 !method->is_static()) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	281 // Only static non-synchronized methods are allowed
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	282 return NULL;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	283 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	284
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	285 ResourceMark rm;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	286 address entry = NULL;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	287
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	288 Symbol* signature = method->signature();
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	289 for (int end = 0; end < signature->utf8_length(); end++) {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	290 if (signature->byte_at(end) == 'L') {
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	291 // Don't allow object types
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	292 return NULL;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	293 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	294 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	295
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	296 // Compute critical name
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	297 char* critical_name = critical_jni_name(method);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	298
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	299 // Compute argument size
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	300 int args_size = 1 // JNIEnv
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	301 + (method->is_static() ? 1 : 0) // class for static methods
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	302 + method->size_of_parameters(); // actual parameters
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	303
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	304
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	305 // 1) Try JNI short style
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	306 entry = lookup_critical_style(method, critical_name, "", args_size, true);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	307 if (entry != NULL) return entry;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	308
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	309 // Compute long name
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	310 char* long_name = long_jni_name(method);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	311
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	312 // 2) Try JNI long style
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	313 entry = lookup_critical_style(method, critical_name, long_name, args_size, true);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	314 if (entry != NULL) return entry;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	315
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	316 // 3) Try JNI short style without os prefix/suffix
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	317 entry = lookup_critical_style(method, critical_name, "", args_size, false);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	318 if (entry != NULL) return entry;
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	319
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	320 // 4) Try JNI long style without os prefix/suffix
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	321 entry = lookup_critical_style(method, critical_name, long_name, args_size, false);
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	322
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	323 return entry; // NULL indicates not found
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	324 }
0382d2b469b2 7013347: allow crypto functions to be called inline to enhance performance never parents: 3960 diff changeset	325
0 a61af66fc99e Initial load duke parents: diff changeset	326 // Check if there are any JVM TI prefixes which have been applied to the native method name.
a61af66fc99e Initial load duke parents: diff changeset	327 // If any are found, remove them before attemping the look up of the
a61af66fc99e Initial load duke parents: diff changeset	328 // native implementation again.
a61af66fc99e Initial load duke parents: diff changeset	329 // See SetNativeMethodPrefix in the JVM TI Spec for more details.
a61af66fc99e Initial load duke parents: diff changeset	330 address NativeLookup::lookup_entry_prefixed(methodHandle method, bool& in_base_library, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	331 ResourceMark rm(THREAD);
a61af66fc99e Initial load duke parents: diff changeset	332
a61af66fc99e Initial load duke parents: diff changeset	333 int prefix_count;
a61af66fc99e Initial load duke parents: diff changeset	334 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
a61af66fc99e Initial load duke parents: diff changeset	335 char* in_name = method->name()->as_C_string();
a61af66fc99e Initial load duke parents: diff changeset	336 char* wrapper_name = in_name;
a61af66fc99e Initial load duke parents: diff changeset	337 // last applied prefix will be first -- go backwards
a61af66fc99e Initial load duke parents: diff changeset	338 for (int i = prefix_count-1; i >= 0; i--) {
a61af66fc99e Initial load duke parents: diff changeset	339 char* prefix = prefixes[i];
a61af66fc99e Initial load duke parents: diff changeset	340 size_t prefix_len = strlen(prefix);
a61af66fc99e Initial load duke parents: diff changeset	341 if (strncmp(prefix, wrapper_name, prefix_len) == 0) {
a61af66fc99e Initial load duke parents: diff changeset	342 // has this prefix remove it
a61af66fc99e Initial load duke parents: diff changeset	343 wrapper_name += prefix_len;
a61af66fc99e Initial load duke parents: diff changeset	344 }
a61af66fc99e Initial load duke parents: diff changeset	345 }
a61af66fc99e Initial load duke parents: diff changeset	346 if (wrapper_name != in_name) {
a61af66fc99e Initial load duke parents: diff changeset	347 // we have a name for a wrapping method
a61af66fc99e Initial load duke parents: diff changeset	348 int wrapper_name_len = (int)strlen(wrapper_name);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	349 TempNewSymbol wrapper_symbol = SymbolTable::probe(wrapper_name, wrapper_name_len);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	350 if (wrapper_symbol != NULL) {
0 a61af66fc99e Initial load duke parents: diff changeset	351 KlassHandle kh(method->method_holder());
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	352 methodOop wrapper_method = Klass::cast(kh())->lookup_method(wrapper_symbol,
0 a61af66fc99e Initial load duke parents: diff changeset	353 method->signature());
a61af66fc99e Initial load duke parents: diff changeset	354 if (wrapper_method != NULL && !wrapper_method->is_native()) {
a61af66fc99e Initial load duke parents: diff changeset	355 // we found a wrapper method, use its native entry
a61af66fc99e Initial load duke parents: diff changeset	356 method->set_is_prefixed_native();
a61af66fc99e Initial load duke parents: diff changeset	357 return lookup_entry(wrapper_method, in_base_library, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	358 }
a61af66fc99e Initial load duke parents: diff changeset	359 }
a61af66fc99e Initial load duke parents: diff changeset	360 }
a61af66fc99e Initial load duke parents: diff changeset	361 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	362 }
a61af66fc99e Initial load duke parents: diff changeset	363
a61af66fc99e Initial load duke parents: diff changeset	364 address NativeLookup::lookup_base(methodHandle method, bool& in_base_library, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	365 address entry = NULL;
a61af66fc99e Initial load duke parents: diff changeset	366 ResourceMark rm(THREAD);
a61af66fc99e Initial load duke parents: diff changeset	367
a61af66fc99e Initial load duke parents: diff changeset	368 entry = lookup_entry(method, in_base_library, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	369 if (entry != NULL) return entry;
a61af66fc99e Initial load duke parents: diff changeset	370
a61af66fc99e Initial load duke parents: diff changeset	371 // standard native method resolution has failed. Check if there are any
a61af66fc99e Initial load duke parents: diff changeset	372 // JVM TI prefixes which have been applied to the native method name.
a61af66fc99e Initial load duke parents: diff changeset	373 entry = lookup_entry_prefixed(method, in_base_library, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	374 if (entry != NULL) return entry;
a61af66fc99e Initial load duke parents: diff changeset	375
a61af66fc99e Initial load duke parents: diff changeset	376 // Native function not found, throw UnsatisfiedLinkError
a61af66fc99e Initial load duke parents: diff changeset	377 THROW_MSG_0(vmSymbols::java_lang_UnsatisfiedLinkError(),
a61af66fc99e Initial load duke parents: diff changeset	378 method->name_and_sig_as_C_string());
a61af66fc99e Initial load duke parents: diff changeset	379 }
a61af66fc99e Initial load duke parents: diff changeset	380
a61af66fc99e Initial load duke parents: diff changeset	381
a61af66fc99e Initial load duke parents: diff changeset	382 address NativeLookup::lookup(methodHandle method, bool& in_base_library, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	383 if (!method->has_native_function()) {
a61af66fc99e Initial load duke parents: diff changeset	384 address entry = lookup_base(method, in_base_library, CHECK_NULL);
a61af66fc99e Initial load duke parents: diff changeset	385 method->set_native_function(entry,
a61af66fc99e Initial load duke parents: diff changeset	386 methodOopDesc::native_bind_event_is_interesting);
a61af66fc99e Initial load duke parents: diff changeset	387 // -verbose:jni printing
a61af66fc99e Initial load duke parents: diff changeset	388 if (PrintJNIResolving) {
a61af66fc99e Initial load duke parents: diff changeset	389 ResourceMark rm(THREAD);
a61af66fc99e Initial load duke parents: diff changeset	390 tty->print_cr("[Dynamic-linking native method %s.%s ... JNI]",
a61af66fc99e Initial load duke parents: diff changeset	391 Klass::cast(method->method_holder())->external_name(),
a61af66fc99e Initial load duke parents: diff changeset	392 method->name()->as_C_string());
a61af66fc99e Initial load duke parents: diff changeset	393 }
a61af66fc99e Initial load duke parents: diff changeset	394 }
a61af66fc99e Initial load duke parents: diff changeset	395 return method->native_function();
a61af66fc99e Initial load duke parents: diff changeset	396 }
a61af66fc99e Initial load duke parents: diff changeset	397
a61af66fc99e Initial load duke parents: diff changeset	398 address NativeLookup::base_library_lookup(const char* class_name, const char* method_name, const char* signature) {
a61af66fc99e Initial load duke parents: diff changeset	399 EXCEPTION_MARK;
a61af66fc99e Initial load duke parents: diff changeset	400 bool in_base_library = true; // SharedRuntime inits some math methods.
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	401 TempNewSymbol c_name = SymbolTable::new_symbol(class_name, CATCH);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	402 TempNewSymbol m_name = SymbolTable::new_symbol(method_name, CATCH);
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	403 TempNewSymbol s_name = SymbolTable::new_symbol(signature, CATCH);
0 a61af66fc99e Initial load duke parents: diff changeset	404
a61af66fc99e Initial load duke parents: diff changeset	405 // Find the class
a61af66fc99e Initial load duke parents: diff changeset	406 klassOop k = SystemDictionary::resolve_or_fail(c_name, true, CATCH);
a61af66fc99e Initial load duke parents: diff changeset	407 instanceKlassHandle klass (THREAD, k);
a61af66fc99e Initial load duke parents: diff changeset	408
a61af66fc99e Initial load duke parents: diff changeset	409 // Find method and invoke standard lookup
a61af66fc99e Initial load duke parents: diff changeset	410 methodHandle method (THREAD,
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 1980 diff changeset	411 klass->uncached_lookup_method(m_name, s_name));
0 a61af66fc99e Initial load duke parents: diff changeset	412 address result = lookup(method, in_base_library, CATCH);
a61af66fc99e Initial load duke parents: diff changeset	413 assert(in_base_library, "must be in basic library");
a61af66fc99e Initial load duke parents: diff changeset	414 guarantee(result != NULL, "must be non NULL");
a61af66fc99e Initial load duke parents: diff changeset	415 return result;
a61af66fc99e Initial load duke parents: diff changeset	416 }

Mercurial > hg > graal-compiler

annotate src/share/vm/prims/nativeLookup.cpp @ 5915:2d503de963b3