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Change J9Module::moduleName from a j9object_t to a J9UTF8 pointer
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Signed-off-by: Nathan Henderson <[email protected]>
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@ThanHenderson
ThanHenderson committed Dec 4, 2024
1 parent 249921b commit 35d786e
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Showing 29 changed files with 194 additions and 218 deletions.
2 changes: 1 addition & 1 deletion debugtools/DDR_VM/src/com/ibm/j9ddr/vm29/tools/ddrinteractive/ModularityHelper.java
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Expand Up @@ -97,7 +97,7 @@ public static boolean moduleFilterMatchAll(J9ModulePointer modulePtr, String arg
* be outputted to.
*/
public static void printJ9Module(J9ModulePointer modulePtr, PrintStream out) throws CorruptDataException {
String moduleName = J9ObjectHelper.stringValue(modulePtr.moduleName());
String moduleName = J9UTF8Helper.stringValue(modulePtr.moduleName());
String hexAddress = modulePtr.getHexAddress();
out.printf("%-30s !j9module %s%n", moduleName, hexAddress);
}
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4 changes: 2 additions & 2 deletions ...rc/com/ibm/j9ddr/vm29/tools/ddrinteractive/commands/DumpModuleDirectedExportsCommand.java
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Expand Up @@ -36,7 +36,7 @@
import com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9PackagePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;
import com.ibm.j9ddr.vm29.pointer.helper.J9RASHelper;
import com.ibm.j9ddr.vm29.tools.ddrinteractive.JavaVersionHelper;

Expand Down Expand Up @@ -74,7 +74,7 @@ public void run(String command, String[] args, Context context, PrintStream out)
while (slotIterator.hasNext()) {
J9ModulePointer exportModulePtr = slotIterator.next();
hitCount++;
String moduleName = J9ObjectHelper.stringValue(exportModulePtr.moduleName());
String moduleName = J9UTF8Helper.stringValue(exportModulePtr.moduleName());
String hexAddress = exportModulePtr.getHexAddress();
out.printf("%-30s !j9module %s%n", moduleName, hexAddress);
}
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4 changes: 2 additions & 2 deletions ...s/DDR_VM/src/com/ibm/j9ddr/vm29/tools/ddrinteractive/commands/DumpModuleReadsCommand.java
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Expand Up @@ -35,7 +35,7 @@
import com.ibm.j9ddr.vm29.pointer.generated.J9HashTablePointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;
import com.ibm.j9ddr.vm29.pointer.helper.J9RASHelper;
import com.ibm.j9ddr.vm29.tools.ddrinteractive.JavaVersionHelper;

Expand Down Expand Up @@ -72,7 +72,7 @@ public void run(String command, String[] args, Context context, PrintStream out)
SlotIterator<J9ModulePointer> slotIterator = moduleHashTable.iterator();
while (slotIterator.hasNext()) {
J9ModulePointer readModulePtr = slotIterator.next();
String moduleName = J9ObjectHelper.stringValue(readModulePtr.moduleName());
String moduleName = J9UTF8Helper.stringValue(readModulePtr.moduleName());
String hexAddress = readModulePtr.getHexAddress();
out.printf("%-30s !j9module %s%n", moduleName, hexAddress);
}
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4 changes: 2 additions & 2 deletions ...ls/DDR_VM/src/com/ibm/j9ddr/vm29/tools/ddrinteractive/commands/FindAllModulesCommand.java
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Expand Up @@ -35,7 +35,7 @@
import com.ibm.j9ddr.vm29.pointer.generated.J9ClassLoaderPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;
import com.ibm.j9ddr.vm29.pointer.helper.J9RASHelper;
import com.ibm.j9ddr.vm29.tools.ddrinteractive.JavaVersionHelper;

Expand Down Expand Up @@ -70,7 +70,7 @@ public void run(String command, String[] args, Context context, PrintStream out)
SlotIterator<J9ModulePointer> slotIterator = moduleHashTable.iterator();
while (slotIterator.hasNext()) {
J9ModulePointer modulePtr = slotIterator.next();
String moduleName = J9ObjectHelper.stringValue(modulePtr.moduleName());
String moduleName = J9UTF8Helper.stringValue(modulePtr.moduleName());
String hexAddress = modulePtr.getHexAddress();
out.printf("%-30s !j9module %s%n", moduleName, hexAddress);
}
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4 changes: 2 additions & 2 deletions ...ools/DDR_VM/src/com/ibm/j9ddr/vm29/tools/ddrinteractive/commands/FindAllReadsCommand.java
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Expand Up @@ -38,7 +38,7 @@
import com.ibm.j9ddr.vm29.pointer.generated.J9HashTablePointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;
import com.ibm.j9ddr.vm29.pointer.helper.J9RASHelper;
import com.ibm.j9ddr.vm29.tools.ddrinteractive.JavaVersionHelper;

Expand Down Expand Up @@ -79,7 +79,7 @@ public void run(String command, String[] args, Context context, PrintStream out)
SlotIterator<J9ModulePointer> slotIterator = moduleHashTable.iterator();
while (slotIterator.hasNext()) {
J9ModulePointer modulePtr = slotIterator.next();
String moduleName = J9ObjectHelper.stringValue(modulePtr.moduleName());
String moduleName = J9UTF8Helper.stringValue(modulePtr.moduleName());
String hexAddress = modulePtr.getHexAddress();
J9HashTablePointer readTable = modulePtr.readAccessHashTable();
HashTable<J9ModulePointer> readModuleHashTable = ModuleHashTable.fromJ9HashTable(readTable);
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4 changes: 2 additions & 2 deletions .../DDR_VM/src/com/ibm/j9ddr/vm29/tools/ddrinteractive/commands/FindModuleByNameCommand.java
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Expand Up @@ -36,7 +36,7 @@
import com.ibm.j9ddr.vm29.pointer.generated.J9ClassLoaderPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;
import com.ibm.j9ddr.vm29.pointer.helper.J9RASHelper;
import com.ibm.j9ddr.vm29.tools.ddrinteractive.JavaVersionHelper;

Expand Down Expand Up @@ -82,7 +82,7 @@ public void run(String command, String[] args, Context context, PrintStream out)
SlotIterator<J9ModulePointer> slotIterator = moduleHashTable.iterator();
while (slotIterator.hasNext()) {
J9ModulePointer modulePtr = slotIterator.next();
String moduleName = J9ObjectHelper.stringValue(modulePtr.moduleName());
String moduleName = J9UTF8Helper.stringValue(modulePtr.moduleName());
if (pattern.isMatch(moduleName)) {
hitCount++;
String hexAddress = modulePtr.getHexAddress();
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5 changes: 2 additions & 3 deletions ...tools/DDR_VM/src/com/ibm/j9ddr/vm29/tools/ddrinteractive/commands/FindModulesCommand.java
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Expand Up @@ -39,7 +39,6 @@
import com.ibm.j9ddr.vm29.pointer.generated.J9JavaVMPointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.generated.J9PackagePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9RASHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;
import com.ibm.j9ddr.vm29.tools.ddrinteractive.ModularityHelper;
Expand Down Expand Up @@ -157,7 +156,7 @@ private static void printModuleReads(J9ModulePointer modulePtr, PrintStream out)
* @return true if the names are equal, false otherwise.
*/
private static boolean filterModuleName(J9ModulePointer modulePtr, String targetName) throws CorruptDataException {
return J9ObjectHelper.stringValue(modulePtr.moduleName()).equals(targetName);
return J9UTF8Helper.stringValue(modulePtr.moduleName()).equals(targetName);
}


Expand All @@ -168,7 +167,7 @@ private static boolean filterRequiresTargetModule(J9ModulePointer modulePtr, Str
SlotIterator<J9ModulePointer> slotIterator = moduleHashTable.iterator();
while (slotIterator.hasNext()) {
J9ModulePointer readModulePtr = slotIterator.next();
if (J9ObjectHelper.stringValue(readModulePtr.moduleName()).equals(targetModule)) {
if (J9UTF8Helper.stringValue(readModulePtr.moduleName()).equals(targetModule)) {
result = true;
break;
}
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4 changes: 2 additions & 2 deletions ...9ddr/vm29/tools/ddrinteractive/structureformat/extensions/J9ModuleStructureFormatter.java
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Expand Up @@ -30,7 +30,7 @@
import com.ibm.j9ddr.tools.ddrinteractive.FormatWalkResult;
import com.ibm.j9ddr.tools.ddrinteractive.IFieldFormatter;
import com.ibm.j9ddr.vm29.pointer.generated.J9ModulePointer;
import com.ibm.j9ddr.vm29.pointer.helper.J9ObjectHelper;
import com.ibm.j9ddr.vm29.pointer.helper.J9UTF8Helper;

/**
* Structure Formatter that adds a suffix to the command "!j9module $moduleAddress$" output
Expand All @@ -55,7 +55,7 @@ public FormatWalkResult postFormat(String type, long address,
J9ModulePointer modulePtr = J9ModulePointer.cast(address);
String moduleAddress = modulePtr.getHexAddress();
try {
out.println("Module name: " + J9ObjectHelper.stringValue(modulePtr.moduleName()));
out.println("Module name: " + J9UTF8Helper.stringValue(modulePtr.moduleName()));
} catch (CorruptDataException e) {
// Do nothing
}
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12 changes: 10 additions & 2 deletions runtime/bcutil/dynload.c
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Expand Up @@ -219,12 +219,20 @@ searchClassInModule(J9VMThread * vmThread, J9Module * j9module, U_8 * className,
if (j9module == javaVM->javaBaseModule) {
moduleName = JAVA_BASE_MODULE;
} else {
moduleName = J9_VM_FUNCTION(vmThread, copyStringToUTF8WithMemAlloc)(
vmThread, j9module->moduleName, J9_STR_NULL_TERMINATE_RESULT, "", 0, moduleNameBuf, J9VM_PACKAGE_NAME_BUFFER_LENGTH, NULL);
J9UTF8 *moduleNameJ9UTF8 = j9module->moduleName;
U_8 *nameData = J9UTF8_DATA(moduleNameJ9UTF8);
UDATA nameLength = J9UTF8_LENGTH(moduleNameJ9UTF8);
if (nameLength < J9VM_PACKAGE_NAME_BUFFER_LENGTH) {
moduleName = moduleNameBuf;
} else {
moduleName = (char *)j9mem_allocate_memory(nameLength + 1, OMRMEM_CATEGORY_VM); /* +1 for null-terminator. */
}
if (NULL == moduleName) {
rc = -1;
goto _end;
}
memcpy(moduleName, nameData, nameLength);
moduleName[nameLength] = '\0';
if (moduleNameBuf != moduleName) {
freeModuleName = TRUE;
}
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3 changes: 0 additions & 3 deletions runtime/gc_base/RootScanner.cpp
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Expand Up @@ -92,9 +92,6 @@ MM_RootScanner::scanModularityObjects(J9ClassLoader * classLoader)
J9Module * const module = *modulePtr;

doSlot(&module->moduleObject);
if (NULL != module->moduleName) {
doSlot(&module->moduleName);
}
if (NULL != module->version) {
doSlot(&module->version);
}
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3 changes: 0 additions & 3 deletions runtime/gc_glue_java/ConcurrentMarkingDelegate.cpp
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Expand Up @@ -426,9 +426,6 @@ MM_ConcurrentMarkingDelegate::concurrentClassMark(MM_EnvironmentBase *env, bool
J9Module * const module = *modulePtr;

_markingScheme->markObject(env, (j9object_t)module->moduleObject);
if (NULL != module->moduleName) {
_markingScheme->markObject(env, (j9object_t)module->moduleName);
}
if (NULL != module->version) {
_markingScheme->markObject(env, (j9object_t)module->version);
}
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3 changes: 0 additions & 3 deletions runtime/gc_glue_java/MarkingDelegate.cpp
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Expand Up @@ -415,9 +415,6 @@ MM_MarkingDelegate::completeMarking(MM_EnvironmentBase *env)
J9Module * const module = *modulePtr;

_markingScheme->markObjectNoCheck(env, (omrobjectptr_t )module->moduleObject);
if (NULL != module->moduleName) {
_markingScheme->markObjectNoCheck(env, (omrobjectptr_t )module->moduleName);
}
if (NULL != module->version) {
_markingScheme->markObjectNoCheck(env, (omrobjectptr_t )module->version);
}
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1 change: 0 additions & 1 deletion runtime/gc_glue_java/MetronomeDelegate.cpp
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Expand Up @@ -1039,7 +1039,6 @@ MM_MetronomeDelegate::doClassTracing(MM_EnvironmentRealtime *env)
J9Module * const module = *modulePtr;

didWork |= _markingScheme->markObject(env, module->moduleObject);
didWork |= _markingScheme->markObject(env, module->moduleName);
didWork |= _markingScheme->markObject(env, module->version);
modulePtr = (J9Module**)hashTableNextDo(&walkState);
}
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10 changes: 0 additions & 10 deletions runtime/gc_vlhgc/CopyForwardScheme.cpp
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Expand Up @@ -2691,11 +2691,6 @@ MM_CopyForwardScheme::scanClassLoaderObjectSlots(MM_EnvironmentVLHGC *env, MM_Al
while (success && (NULL != modulePtr)) {
J9Module * const module = *modulePtr;
success = copyAndForward(env, reservingContext, classLoaderObject, (J9Object **)&(module->moduleObject));
if (success) {
if (NULL != module->moduleName) {
success = copyAndForward(env, reservingContext, classLoaderObject, (J9Object **)&(module->moduleName));
}
}
if (success) {
if (NULL != module->version) {
success = copyAndForward(env, reservingContext, classLoaderObject, (J9Object **)&(module->version));
Expand Down Expand Up @@ -4441,11 +4436,6 @@ MM_CopyForwardScheme::scanRoots(MM_EnvironmentVLHGC* env)
while (success && (NULL != modulePtr)) {
J9Module * const module = *modulePtr;
success = copyAndForward(env, getContextForHeapAddress(module->moduleObject), (J9Object **)&(module->moduleObject));
if (success) {
if (NULL != module->moduleName) {
success = copyAndForward(env, getContextForHeapAddress(module->moduleName), (J9Object **)&(module->moduleName));
}
}
if (success) {
if (NULL != module->version) {
success = copyAndForward(env, getContextForHeapAddress(module->version), (J9Object **)&(module->version));
Expand Down
3 changes: 0 additions & 3 deletions runtime/gc_vlhgc/GlobalMarkCardScrubber.cpp
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Expand Up @@ -289,9 +289,6 @@ MM_GlobalMarkCardScrubber::scrubClassLoaderObject(MM_EnvironmentVLHGC *env, J9Ob
J9Module * const module = *modulePtr;
Assert_MM_true(NULL != module->moduleObject);
doScrub = mayScrubReference(env, classLoaderObject, module->moduleObject);
if (doScrub) {
doScrub = mayScrubReference(env, classLoaderObject, module->moduleName);
}
if (doScrub) {
doScrub = mayScrubReference(env, classLoaderObject, module->version);
}
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4 changes: 0 additions & 4 deletions runtime/gc_vlhgc/GlobalMarkingScheme.cpp
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Expand Up @@ -896,10 +896,6 @@ MM_GlobalMarkingScheme::scanClassLoaderObject(MM_EnvironmentVLHGC *env, J9Object
Assert_MM_true(NULL != module->moduleObject);
markObject(env, module->moduleObject);
rememberReferenceIfRequired(env, classLoaderObject, module->moduleObject);
if (NULL != module->moduleName) {
markObject(env, module->moduleName);
rememberReferenceIfRequired(env, classLoaderObject, module->moduleName);
}
if (NULL != module->version) {
markObject(env, module->version);
rememberReferenceIfRequired(env, classLoaderObject, module->version);
Expand Down
9 changes: 0 additions & 9 deletions runtime/gc_vlhgc/WriteOnceCompactor.cpp
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Expand Up @@ -1337,15 +1337,6 @@ MM_WriteOnceCompactor::fixupClassLoaderObject(MM_EnvironmentVLHGC* env, J9Object
*slotPtr = forwardedObject;
_interRegionRememberedSet->rememberReferenceForCompact(env, classLoaderObject, forwardedObject);

slotPtr = &module->moduleName;

originalObject = *slotPtr;
if (NULL != originalObject) {
J9Object* forwardedObject = getForwardWrapper(env, originalObject, cache);
*slotPtr = forwardedObject;
_interRegionRememberedSet->rememberReferenceForCompact(env, classLoaderObject, forwardedObject);
}

slotPtr = &module->version;

originalObject = *slotPtr;
Expand Down
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