94
95
96 char* NativeLookup::long_jni_name(methodHandle method) {
97 // Signature ignore the wrapping parenteses and the trailing return type
98 stringStream st;
99 Symbol* signature = method->signature();
100 st.print("__");
101 // find ')'
102 int end;
103 for (end = 0; end < signature->utf8_length() && signature->byte_at(end) != ')'; end++);
104 // skip first '('
105 mangle_name_on(&st, signature, 1, end);
106 return st.as_string();
107 }
108
109 extern "C" {
110 void JNICALL JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafecls);
111 void JNICALL JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass unsafecls);
112 void JNICALL JVM_RegisterPerfMethods(JNIEnv *env, jclass perfclass);
113 void JNICALL JVM_RegisterWhiteBoxMethods(JNIEnv *env, jclass wbclass);
114 }
115
116 #define CC (char*) /* cast a literal from (const char*) */
117 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
118
119 static JNINativeMethod lookup_special_native_methods[] = {
120 { CC"Java_sun_misc_Unsafe_registerNatives", NULL, FN_PTR(JVM_RegisterUnsafeMethods) },
121 { CC"Java_java_lang_invoke_MethodHandleNatives_registerNatives", NULL, FN_PTR(JVM_RegisterMethodHandleMethods) },
122 { CC"Java_sun_misc_Perf_registerNatives", NULL, FN_PTR(JVM_RegisterPerfMethods) },
123 { CC"Java_sun_hotspot_WhiteBox_registerNatives", NULL, FN_PTR(JVM_RegisterWhiteBoxMethods) },
124 };
125
126 static address lookup_special_native(char* jni_name) {
127 int count = sizeof(lookup_special_native_methods) / sizeof(JNINativeMethod);
128 for (int i = 0; i < count; i++) {
129 // NB: To ignore the jni prefix and jni postfix strstr is used matching.
130 if (strstr(jni_name, lookup_special_native_methods[i].name) != NULL) {
131 return CAST_FROM_FN_PTR(address, lookup_special_native_methods[i].fnPtr);
132 }
133 }
134 return NULL;
135 }
136
137 address NativeLookup::lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS) {
138 address entry;
139 // Compute complete JNI name for style
140 stringStream st;
141 if (os_style) os::print_jni_name_prefix_on(&st, args_size);
142 st.print_raw(pure_name);
143 st.print_raw(long_name);
|
94
95
96 char* NativeLookup::long_jni_name(methodHandle method) {
97 // Signature ignore the wrapping parenteses and the trailing return type
98 stringStream st;
99 Symbol* signature = method->signature();
100 st.print("__");
101 // find ')'
102 int end;
103 for (end = 0; end < signature->utf8_length() && signature->byte_at(end) != ')'; end++);
104 // skip first '('
105 mangle_name_on(&st, signature, 1, end);
106 return st.as_string();
107 }
108
109 extern "C" {
110 void JNICALL JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafecls);
111 void JNICALL JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass unsafecls);
112 void JNICALL JVM_RegisterPerfMethods(JNIEnv *env, jclass perfclass);
113 void JNICALL JVM_RegisterWhiteBoxMethods(JNIEnv *env, jclass wbclass);
114 #if INCLUDE_JVMCI
115 jobject JNICALL JVM_GetJVMCIRuntime(JNIEnv *env, jclass c);
116 void JNICALL JVM_RegisterJVMCINatives(JNIEnv *env, jclass compilerToVMClass);
117 #endif
118 }
119
120 #define CC (char*) /* cast a literal from (const char*) */
121 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
122
123 static JNINativeMethod lookup_special_native_methods[] = {
124 { CC"Java_sun_misc_Unsafe_registerNatives", NULL, FN_PTR(JVM_RegisterUnsafeMethods) },
125 { CC"Java_java_lang_invoke_MethodHandleNatives_registerNatives", NULL, FN_PTR(JVM_RegisterMethodHandleMethods) },
126 { CC"Java_sun_misc_Perf_registerNatives", NULL, FN_PTR(JVM_RegisterPerfMethods) },
127 { CC"Java_sun_hotspot_WhiteBox_registerNatives", NULL, FN_PTR(JVM_RegisterWhiteBoxMethods) },
128 #if INCLUDE_JVMCI
129 { CC"Java_jdk_vm_ci_runtime_JVMCI_initializeRuntime", NULL, FN_PTR(JVM_GetJVMCIRuntime) },
130 { CC"Java_jdk_vm_ci_hotspot_CompilerToVM_registerNatives", NULL, FN_PTR(JVM_RegisterJVMCINatives) },
131 #endif
132 };
133
134 static address lookup_special_native(char* jni_name) {
135 int count = sizeof(lookup_special_native_methods) / sizeof(JNINativeMethod);
136 for (int i = 0; i < count; i++) {
137 // NB: To ignore the jni prefix and jni postfix strstr is used matching.
138 if (strstr(jni_name, lookup_special_native_methods[i].name) != NULL) {
139 return CAST_FROM_FN_PTR(address, lookup_special_native_methods[i].fnPtr);
140 }
141 }
142 return NULL;
143 }
144
145 address NativeLookup::lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS) {
146 address entry;
147 // Compute complete JNI name for style
148 stringStream st;
149 if (os_style) os::print_jni_name_prefix_on(&st, args_size);
150 st.print_raw(pure_name);
151 st.print_raw(long_name);
|