24
25 #include "precompiled.hpp"
26 #include "classfile/javaClasses.hpp"
27 #include "classfile/systemDictionary.hpp"
28 #include "classfile/vmSymbols.hpp"
29 #include "memory/oopFactory.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "memory/universe.inline.hpp"
32 #include "oops/instanceKlass.hpp"
33 #include "oops/method.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/symbol.hpp"
36 #include "prims/jvm_misc.hpp"
37 #include "prims/nativeLookup.hpp"
38 #include "runtime/arguments.hpp"
39 #include "runtime/handles.inline.hpp"
40 #include "runtime/javaCalls.hpp"
41 #include "runtime/sharedRuntime.hpp"
42 #include "runtime/signature.hpp"
43 #include "utilities/macros.hpp"
44 #ifdef TARGET_OS_FAMILY_linux
45 # include "os_linux.inline.hpp"
46 #endif
47 #ifdef TARGET_OS_FAMILY_solaris
48 # include "os_solaris.inline.hpp"
49 #endif
50 #ifdef TARGET_OS_FAMILY_windows
51 # include "os_windows.inline.hpp"
52 #endif
53 #ifdef TARGET_OS_FAMILY_aix
54 # include "os_aix.inline.hpp"
55 #endif
56 #ifdef TARGET_OS_FAMILY_bsd
57 # include "os_bsd.inline.hpp"
58 #endif
59
60
61 static void mangle_name_on(outputStream* st, Symbol* name, int begin, int end) {
62 char* bytes = (char*)name->bytes() + begin;
63 char* end_bytes = (char*)name->bytes() + end;
119 // skip first '('
120 mangle_name_on(&st, signature, 1, end);
121 return st.as_string();
122 }
123
124 extern "C" {
125 void JNICALL JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafecls);
126 void JNICALL JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass unsafecls);
127 void JNICALL JVM_RegisterPerfMethods(JNIEnv *env, jclass perfclass);
128 void JNICALL JVM_RegisterWhiteBoxMethods(JNIEnv *env, jclass wbclass);
129 }
130
131 #define CC (char*) /* cast a literal from (const char*) */
132 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
133
134 static JNINativeMethod lookup_special_native_methods[] = {
135 { CC"Java_sun_misc_Unsafe_registerNatives", NULL, FN_PTR(JVM_RegisterUnsafeMethods) },
136 { CC"Java_java_lang_invoke_MethodHandleNatives_registerNatives", NULL, FN_PTR(JVM_RegisterMethodHandleMethods) },
137 { CC"Java_sun_misc_Perf_registerNatives", NULL, FN_PTR(JVM_RegisterPerfMethods) },
138 { CC"Java_sun_hotspot_WhiteBox_registerNatives", NULL, FN_PTR(JVM_RegisterWhiteBoxMethods) },
139 };
140
141 static address lookup_special_native(char* jni_name) {
142 int count = sizeof(lookup_special_native_methods) / sizeof(JNINativeMethod);
143 for (int i = 0; i < count; i++) {
144 // NB: To ignore the jni prefix and jni postfix strstr is used matching.
145 if (strstr(jni_name, lookup_special_native_methods[i].name) != NULL) {
146 return CAST_FROM_FN_PTR(address, lookup_special_native_methods[i].fnPtr);
147 }
148 }
149 return NULL;
150 }
151
152 address NativeLookup::lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS) {
153 address entry;
154 // Compute complete JNI name for style
155 stringStream st;
156 if (os_style) os::print_jni_name_prefix_on(&st, args_size);
157 st.print_raw(pure_name);
158 st.print_raw(long_name);
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24
25 #include "precompiled.hpp"
26 #include "classfile/javaClasses.hpp"
27 #include "classfile/systemDictionary.hpp"
28 #include "classfile/vmSymbols.hpp"
29 #include "memory/oopFactory.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "memory/universe.inline.hpp"
32 #include "oops/instanceKlass.hpp"
33 #include "oops/method.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/symbol.hpp"
36 #include "prims/jvm_misc.hpp"
37 #include "prims/nativeLookup.hpp"
38 #include "runtime/arguments.hpp"
39 #include "runtime/handles.inline.hpp"
40 #include "runtime/javaCalls.hpp"
41 #include "runtime/sharedRuntime.hpp"
42 #include "runtime/signature.hpp"
43 #include "utilities/macros.hpp"
44 #if INCLUDE_JFR
45 #include "jfr/jfr.hpp"
46 #endif
47 #ifdef TARGET_OS_FAMILY_linux
48 # include "os_linux.inline.hpp"
49 #endif
50 #ifdef TARGET_OS_FAMILY_solaris
51 # include "os_solaris.inline.hpp"
52 #endif
53 #ifdef TARGET_OS_FAMILY_windows
54 # include "os_windows.inline.hpp"
55 #endif
56 #ifdef TARGET_OS_FAMILY_aix
57 # include "os_aix.inline.hpp"
58 #endif
59 #ifdef TARGET_OS_FAMILY_bsd
60 # include "os_bsd.inline.hpp"
61 #endif
62
63
64 static void mangle_name_on(outputStream* st, Symbol* name, int begin, int end) {
65 char* bytes = (char*)name->bytes() + begin;
66 char* end_bytes = (char*)name->bytes() + end;
122 // skip first '('
123 mangle_name_on(&st, signature, 1, end);
124 return st.as_string();
125 }
126
127 extern "C" {
128 void JNICALL JVM_RegisterUnsafeMethods(JNIEnv *env, jclass unsafecls);
129 void JNICALL JVM_RegisterMethodHandleMethods(JNIEnv *env, jclass unsafecls);
130 void JNICALL JVM_RegisterPerfMethods(JNIEnv *env, jclass perfclass);
131 void JNICALL JVM_RegisterWhiteBoxMethods(JNIEnv *env, jclass wbclass);
132 }
133
134 #define CC (char*) /* cast a literal from (const char*) */
135 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
136
137 static JNINativeMethod lookup_special_native_methods[] = {
138 { CC"Java_sun_misc_Unsafe_registerNatives", NULL, FN_PTR(JVM_RegisterUnsafeMethods) },
139 { CC"Java_java_lang_invoke_MethodHandleNatives_registerNatives", NULL, FN_PTR(JVM_RegisterMethodHandleMethods) },
140 { CC"Java_sun_misc_Perf_registerNatives", NULL, FN_PTR(JVM_RegisterPerfMethods) },
141 { CC"Java_sun_hotspot_WhiteBox_registerNatives", NULL, FN_PTR(JVM_RegisterWhiteBoxMethods) },
142 #if INCLUDE_JFR
143 { CC"Java_jdk_jfr_internal_JVM_registerNatives", NULL, FN_PTR(jfr_register_natives) },
144 #endif
145 };
146
147 static address lookup_special_native(char* jni_name) {
148 int count = sizeof(lookup_special_native_methods) / sizeof(JNINativeMethod);
149 for (int i = 0; i < count; i++) {
150 // NB: To ignore the jni prefix and jni postfix strstr is used matching.
151 if (strstr(jni_name, lookup_special_native_methods[i].name) != NULL) {
152 return CAST_FROM_FN_PTR(address, lookup_special_native_methods[i].fnPtr);
153 }
154 }
155 return NULL;
156 }
157
158 address NativeLookup::lookup_style(methodHandle method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS) {
159 address entry;
160 // Compute complete JNI name for style
161 stringStream st;
162 if (os_style) os::print_jni_name_prefix_on(&st, args_size);
163 st.print_raw(pure_name);
164 st.print_raw(long_name);
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