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comparison src/share/vm/graal/graalCompilerToVM.cpp @ 5150:fdd9dd4508fa

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some GC fixes avoid non-Java bytecodes in code() array passed to Graal
author Christian Haeubl <christian.haeubl@oracle.com>
date Thu, 22 Mar 2012 18:54:02 -0700
parents ab038e0d6b43
children ae72dd38eeb1
comparison
equal deleted inserted replaced
5149:c5eaee66bfa1 5150:fdd9dd4508fa
50 50
51 // public byte[] RiMethod_code(HotSpotResolvedMethod method); 51 // public byte[] RiMethod_code(HotSpotResolvedMethod method);
52 JNIEXPORT jbyteArray JNICALL Java_com_oracle_graal_hotspot_bridge_CompilerToVMImpl_RiMethod_1code(JNIEnv *env, jobject, jobject hotspot_method) { 52 JNIEXPORT jbyteArray JNICALL Java_com_oracle_graal_hotspot_bridge_CompilerToVMImpl_RiMethod_1code(JNIEnv *env, jobject, jobject hotspot_method) {
53 TRACE_graal_3("CompilerToVM::RiMethod_code"); 53 TRACE_graal_3("CompilerToVM::RiMethod_code");
54 methodHandle method = getMethodFromHotSpotMethod(hotspot_method); 54 methodHandle method = getMethodFromHotSpotMethod(hotspot_method);
55
56 // copy all bytecodes
55 int code_size = method->code_size(); 57 int code_size = method->code_size();
56 jbyteArray result = env->NewByteArray(code_size); 58 jbyteArray result = env->NewByteArray(code_size);
57 env->SetByteArrayRegion(result, 0, code_size, (const jbyte *) method->code_base()); 59 env->SetByteArrayRegion(result, 0, code_size, (const jbyte *) method->code_base());
60
61 // iterate over all bytecodes and replace non-Java bytecodes
62 if (RewriteBytecodes || RewriteFrequentPairs) {
63 BytecodeStream s(method);
64 while(!s.is_last_bytecode()) {
65 jbyte code = s.next();
66 env->SetByteArrayRegion(result, s.bci(), 1, &code);
67 }
68 }
69
70 // replace all breakpoints
71 if (method->number_of_breakpoints() > 0) {
72 BreakpointInfo* bp = instanceKlass::cast(method->method_holder())->breakpoints();
73 for (; bp != NULL; bp = bp->next()) {
74 if (bp->match(method())) {
75 jbyte code = bp->orig_bytecode();
76 env->SetByteArrayRegion(result, bp->bci(), 1, &code);
77 }
78 }
79 }
80
58 return result; 81 return result;
59 } 82 }
60 83
61 // public String RiMethod_signature(HotSpotResolvedMethod method); 84 // public String RiMethod_signature(HotSpotResolvedMethod method);
62 JNIEXPORT jstring JNICALL Java_com_oracle_graal_hotspot_bridge_CompilerToVMImpl_RiMethod_1signature(JNIEnv *env, jobject, jobject hotspot_method) { 85 JNIEXPORT jstring JNICALL Java_com_oracle_graal_hotspot_bridge_CompilerToVMImpl_RiMethod_1signature(JNIEnv *env, jobject, jobject hotspot_method) {