Mercurial > hg > truffle
diff src/share/vm/graal/graalCompilerToVM.cpp @ 5003:5e6f1026a63e
fixes to vtable stub inlining: compute offset on demand, look out for interface methods
| author | Lukas Stadler <lukas.stadler@jku.at> |
|---|---|
| date | Thu, 01 Mar 2012 15:36:35 +0100 |
| parents | b5dc2403c1e7 |
| children | 5e9f38419819 |
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--- a/src/share/vm/graal/graalCompilerToVM.cpp Thu Mar 01 12:26:32 2012 +0100 +++ b/src/share/vm/graal/graalCompilerToVM.cpp Thu Mar 01 15:36:35 2012 +0100 @@ -951,6 +951,21 @@ return JNIHandles::make_local((oop) result.get_jobject()); } +// public native int RiMethod_vtableEntryOffset(HotSpotMethodResolved method); +JNIEXPORT jint JNICALL Java_com_oracle_max_graal_hotspot_bridge_CompilerToVMImpl_RiMethod_vtableEntryOffset(JNIEnv *, jobject, jobject hotspot_method) { + TRACE_graal_3("CompilerToVM::RiMethod_vtableEntryOffset"); + + methodOop method = getMethodFromHotSpotMethod(hotspot_method); + assert(!instanceKlass::cast(method->method_holder())->is_interface(), "vtableEntryOffset cannot be called for interface methods"); + + // get entry offset in words + int vtable_entry_offset = instanceKlass::vtable_start_offset() + method->vtable_index() * vtableEntry::size(); + // convert to bytes + vtable_entry_offset = vtable_entry_offset * wordSize + vtableEntry::method_offset_in_bytes(); + + return vtable_entry_offset; +} + #define CC (char*) /*cast a literal from (const char*)*/ #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(Java_com_oracle_max_graal_hotspot_bridge_CompilerToVMImpl_##f)) @@ -1013,6 +1028,7 @@ {CC"disassembleNative", CC"([BJ)"STRING, FN_PTR(disassembleNative)}, {CC"disassembleJava", CC"("RESOLVED_METHOD")"STRING, FN_PTR(disassembleJava)}, {CC"executeCompiledMethod", CC"("HS_COMP_METHOD OBJECT OBJECT OBJECT")"OBJECT, FN_PTR(executeCompiledMethod)}, + {CC"RiMethod_vtableEntryOffset", CC"("RESOLVED_METHOD")I", FN_PTR(RiMethod_vtableEntryOffset)}, }; int CompilerToVM_methods_count() {