# HG changeset patch
# User never
# Date 1475168456 25200
# Node ID 94ef14db8a2050619eda10a80b4cdb466e051ebd
# Parent  578189b0f23006b3590746b2ac1d14dae0498db4
8166869: [JVMCI] record metadata relocations for metadata references
Reviewed-by: kvn

diff -r 578189b0f230 -r 94ef14db8a20 hotspot/src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp
--- a/hotspot/src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp	Wed Sep 28 10:11:40 2016 -0700
+++ b/hotspot/src/cpu/sparc/vm/jvmciCodeInstaller_sparc.cpp	Thu Sep 29 10:00:56 2016 -0700
@@ -71,7 +71,7 @@
   if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
 #ifdef _LP64
     NativeMovConstReg32* move = nativeMovConstReg32_at(pc);
-    narrowKlass narrowOop = record_narrow_metadata_reference(constant, CHECK);
+    narrowKlass narrowOop = record_narrow_metadata_reference(_instructions, pc, constant, CHECK);
     move->set_data((intptr_t)narrowOop);
     TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/0x%x", p2i(pc), narrowOop);
 #else
@@ -79,7 +79,7 @@
 #endif
   } else {
     NativeMovConstReg* move = nativeMovConstReg_at(pc);
-    void* reference = record_metadata_reference(constant, CHECK);
+    void* reference = record_metadata_reference(_instructions, pc, constant, CHECK);
     move->set_data((intptr_t)reference);
     TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(reference));
   }
diff -r 578189b0f230 -r 94ef14db8a20 hotspot/src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp
--- a/hotspot/src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp	Wed Sep 28 10:11:40 2016 -0700
+++ b/hotspot/src/cpu/x86/vm/jvmciCodeInstaller_x86.cpp	Thu Sep 29 10:00:56 2016 -0700
@@ -89,14 +89,14 @@
   if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
 #ifdef _LP64
     address operand = Assembler::locate_operand(pc, Assembler::narrow_oop_operand);
-    *((narrowKlass*) operand) = record_narrow_metadata_reference(constant, CHECK);
+    *((narrowKlass*) operand) = record_narrow_metadata_reference(_instructions, operand, constant, CHECK);
     TRACE_jvmci_3("relocating (narrow metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
 #else
     JVMCI_ERROR("compressed Klass* on 32bit");
 #endif
   } else {
     address operand = Assembler::locate_operand(pc, Assembler::imm_operand);
-    *((void**) operand) = record_metadata_reference(constant, CHECK);
+    *((void**) operand) = record_metadata_reference(_instructions, operand, constant, CHECK);
     TRACE_jvmci_3("relocating (metaspace constant) at " PTR_FORMAT "/" PTR_FORMAT, p2i(pc), p2i(operand));
   }
 }
diff -r 578189b0f230 -r 94ef14db8a20 hotspot/src/share/vm/jvmci/jvmciCodeInstaller.cpp
--- a/hotspot/src/share/vm/jvmci/jvmciCodeInstaller.cpp	Wed Sep 28 10:11:40 2016 -0700
+++ b/hotspot/src/share/vm/jvmci/jvmciCodeInstaller.cpp	Thu Sep 29 10:00:56 2016 -0700
@@ -172,7 +172,7 @@
   return map;
 }
 
-void* CodeInstaller::record_metadata_reference(Handle constant, TRAPS) {
+void* CodeInstaller::record_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS) {
   /*
    * This method needs to return a raw (untyped) pointer, since the value of a pointer to the base
    * class is in general not equal to the pointer of the subclass. When patching metaspace pointers,
@@ -184,12 +184,14 @@
     Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj));
     assert(!HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected compressed klass pointer %s @ " INTPTR_FORMAT, klass->name()->as_C_string(), p2i(klass));
     int index = _oop_recorder->find_index(klass);
+    section->relocate(dest, metadata_Relocation::spec(index));
     TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string());
     return klass;
   } else if (obj->is_a(HotSpotResolvedJavaMethodImpl::klass())) {
     Method* method = (Method*) (address) HotSpotResolvedJavaMethodImpl::metaspaceMethod(obj);
     assert(!HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected compressed method pointer %s @ " INTPTR_FORMAT, method->name()->as_C_string(), p2i(method));
     int index = _oop_recorder->find_index(method);
+    section->relocate(dest, metadata_Relocation::spec(index));
     TRACE_jvmci_3("metadata[%d of %d] = %s", index, _oop_recorder->metadata_count(), method->name()->as_C_string());
     return method;
   } else {
@@ -198,7 +200,7 @@
 }
 
 #ifdef _LP64
-narrowKlass CodeInstaller::record_narrow_metadata_reference(Handle constant, TRAPS) {
+narrowKlass CodeInstaller::record_narrow_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS) {
   oop obj = HotSpotMetaspaceConstantImpl::metaspaceObject(constant);
   assert(HotSpotMetaspaceConstantImpl::compressed(constant), "unexpected uncompressed pointer");
 
@@ -208,6 +210,7 @@
 
   Klass* klass = java_lang_Class::as_Klass(HotSpotResolvedObjectTypeImpl::javaClass(obj));
   int index = _oop_recorder->find_index(klass);
+  section->relocate(dest, metadata_Relocation::spec(index));
   TRACE_jvmci_3("narrowKlass[%d of %d] = %s", index, _oop_recorder->metadata_count(), klass->name()->as_C_string());
   return Klass::encode_klass(klass);
 }
@@ -701,12 +704,12 @@
     if (constant->is_a(HotSpotMetaspaceConstantImpl::klass())) {
       if (HotSpotMetaspaceConstantImpl::compressed(constant)) {
 #ifdef _LP64
-        *((narrowKlass*) dest) = record_narrow_metadata_reference(constant, CHECK_OK);
+        *((narrowKlass*) dest) = record_narrow_metadata_reference(_constants, dest, constant, CHECK_OK);
 #else
         JVMCI_ERROR_OK("unexpected compressed Klass* in 32-bit mode");
 #endif
       } else {
-        *((void**) dest) = record_metadata_reference(constant, CHECK_OK);
+        *((void**) dest) = record_metadata_reference(_constants, dest, constant, CHECK_OK);
       }
     } else if (constant->is_a(HotSpotObjectConstantImpl::klass())) {
       Handle obj = HotSpotObjectConstantImpl::object(constant);
diff -r 578189b0f230 -r 94ef14db8a20 hotspot/src/share/vm/jvmci/jvmciCodeInstaller.hpp
--- a/hotspot/src/share/vm/jvmci/jvmciCodeInstaller.hpp	Wed Sep 28 10:11:40 2016 -0700
+++ b/hotspot/src/share/vm/jvmci/jvmciCodeInstaller.hpp	Thu Sep 29 10:00:56 2016 -0700
@@ -189,9 +189,9 @@
   ScopeValue* get_scope_value(Handle value, BasicType type, GrowableArray<ScopeValue*>* objects, ScopeValue* &second, TRAPS);
   MonitorValue* get_monitor_value(Handle value, GrowableArray<ScopeValue*>* objects, TRAPS);
 
-  void* record_metadata_reference(Handle constant, TRAPS);
+  void* record_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS);
 #ifdef _LP64
-  narrowKlass record_narrow_metadata_reference(Handle constant, TRAPS);
+  narrowKlass record_narrow_metadata_reference(CodeSection* section, address dest, Handle constant, TRAPS);
 #endif
 
   // extract the fields of the HotSpotCompiledCode