public abstract class com.oracle.svm.core.SubstrateSegfaultHandler
minor version: 0
major version: 59
flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
this_class: com.oracle.svm.core.SubstrateSegfaultHandler
super_class: java.lang.Object
{
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial java.lang.Object.<init>:()V
return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lcom/oracle/svm/core/SubstrateSegfaultHandler;
static void startupHook();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=2, locals=1, args_size=0
0: getstatic com.oracle.svm.core.SubstrateSegfaultHandler$Options.InstallSegfaultHandler:Lcom/oracle/svm/core/option/RuntimeOptionKey;
invokevirtual com.oracle.svm.core.option.RuntimeOptionKey.getValue:()Ljava/lang/Object;
checkcast java.lang.Boolean
astore 0
start local 0 1: aload 0
getstatic java.lang.Boolean.TRUE:Ljava/lang/Boolean;
if_acmpeq 2
aload 0
ifnonnull 3
invokestatic org.graalvm.nativeimage.ImageInfo.isExecutable:()Z
ifeq 3
2: StackMap locals: java.lang.Boolean
StackMap stack:
ldc Lcom/oracle/svm/core/SubstrateSegfaultHandler;
invokestatic org.graalvm.nativeimage.ImageSingletons.lookup:(Ljava/lang/Class;)Ljava/lang/Object;
checkcast com.oracle.svm.core.SubstrateSegfaultHandler
invokevirtual com.oracle.svm.core.SubstrateSegfaultHandler.install:()V
3: StackMap locals:
StackMap stack:
return
end local 0 LocalVariableTable:
Start End Slot Name Signature
1 4 0 optionValue Ljava/lang/Boolean;
protected abstract void install();
descriptor: ()V
flags: (0x0404) ACC_PROTECTED, ACC_ABSTRACT
protected static boolean tryEnterIsolate(com.oracle.svm.core.RegisterDumper$Context);
descriptor: (Lcom/oracle/svm/core/RegisterDumper$Context;)Z
flags: (0x000c) ACC_PROTECTED, ACC_STATIC
Code:
stack=2, locals=2, args_size=1
start local 0 0: getstatic com.oracle.svm.core.SubstrateOptions.SpawnIsolates:Lcom/oracle/svm/core/option/HostedOptionKey;
invokevirtual com.oracle.svm.core.option.HostedOptionKey.getValue:()Ljava/lang/Object;
checkcast java.lang.Boolean
invokevirtual java.lang.Boolean.booleanValue:()Z
ifeq 3
1: invokestatic com.oracle.svm.core.RegisterDumper.singleton:()Lcom/oracle/svm/core/RegisterDumper;
aload 0
invokeinterface com.oracle.svm.core.RegisterDumper.getHeapBase:(Lcom/oracle/svm/core/RegisterDumper$Context;)Lorg/graalvm/word/PointerBase;
astore 1
start local 1 2: aload 1
invokestatic com.oracle.svm.core.graal.nodes.WriteHeapBaseNode.writeCurrentVMHeapBase:(Lorg/graalvm/word/PointerBase;)V
end local 1 3: StackMap locals:
StackMap stack:
getstatic com.oracle.svm.core.SubstrateOptions.MultiThreaded:Lcom/oracle/svm/core/option/HostedOptionKey;
invokevirtual com.oracle.svm.core.option.HostedOptionKey.getValue:()Ljava/lang/Object;
checkcast java.lang.Boolean
invokevirtual java.lang.Boolean.booleanValue:()Z
ifeq 6
4: invokestatic com.oracle.svm.core.RegisterDumper.singleton:()Lcom/oracle/svm/core/RegisterDumper;
aload 0
invokeinterface com.oracle.svm.core.RegisterDumper.getThreadPointer:(Lcom/oracle/svm/core/RegisterDumper$Context;)Lorg/graalvm/word/PointerBase;
astore 1
start local 1 5: aload 1
checkcast org.graalvm.nativeimage.IsolateThread
invokestatic com.oracle.svm.core.graal.nodes.WriteCurrentVMThreadNode.writeCurrentVMThread:(Lorg/graalvm/nativeimage/IsolateThread;)V
end local 1 6: StackMap locals:
StackMap stack:
getstatic com.oracle.svm.core.thread.VMThreads.IsolateTL:Lcom/oracle/svm/core/threadlocal/FastThreadLocalWord;
invokevirtual com.oracle.svm.core.threadlocal.FastThreadLocalWord.get:()Lorg/graalvm/word/WordBase;
checkcast org.graalvm.nativeimage.Isolate
astore 1
start local 1 7: aload 1
invokestatic com.oracle.svm.core.Isolates.checkSanity:(Lorg/graalvm/nativeimage/Isolate;)I
ifne 10
8: getstatic com.oracle.svm.core.SubstrateOptions.SpawnIsolates:Lcom/oracle/svm/core/option/HostedOptionKey;
invokevirtual com.oracle.svm.core.option.HostedOptionKey.getValue:()Ljava/lang/Object;
checkcast java.lang.Boolean
invokevirtual java.lang.Boolean.booleanValue:()Z
ifeq 9
aload 1
invokestatic com.oracle.svm.core.snippets.KnownIntrinsics.heapBase:()Lorg/graalvm/word/Pointer;
invokeinterface org.graalvm.nativeimage.Isolate.equal:(Lorg/graalvm/word/ComparableWord;)Z
ifeq 10
9: StackMap locals: org.graalvm.nativeimage.Isolate
StackMap stack:
iconst_1
ireturn
StackMap locals:
StackMap stack:
10: iconst_0
ireturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 context Lcom/oracle/svm/core/RegisterDumper$Context;
2 3 1 heapBase Lorg/graalvm/word/PointerBase;
5 6 1 threadPointer Lorg/graalvm/word/PointerBase;
7 11 1 isolate Lorg/graalvm/nativeimage/Isolate;
RuntimeVisibleAnnotations:
com.oracle.svm.core.annotate.Uninterruptible(reason = "Called from uninterruptible code.")
com.oracle.svm.core.annotate.RestrictHeapAccess(access = com.oracle.svm.core.annotate.RestrictHeapAccess$Access.NO_ALLOCATION:Lcom/oracle/svm/core/annotate/RestrictHeapAccess$Access;, reason = "Must not allocate in segfault handler.", overridesCallers = true)
MethodParameters:
Name Flags
context
protected static void dump(com.oracle.svm.core.RegisterDumper$Context);
descriptor: (Lcom/oracle/svm/core/RegisterDumper$Context;)V
flags: (0x000c) ACC_PROTECTED, ACC_STATIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: invokestatic com.oracle.svm.core.thread.VMThreads$StatusSupport.setStatusIgnoreSafepoints:()V
1: aload 0
invokestatic com.oracle.svm.core.SubstrateSegfaultHandler.dumpInterruptibly:(Lcom/oracle/svm/core/RegisterDumper$Context;)V
2: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 context Lcom/oracle/svm/core/RegisterDumper$Context;
RuntimeVisibleAnnotations:
com.oracle.svm.core.annotate.Uninterruptible(reason = "Must be uninterruptible until we get immune to safepoints.", calleeMustBe = false)
com.oracle.svm.core.annotate.RestrictHeapAccess(access = com.oracle.svm.core.annotate.RestrictHeapAccess$Access.NO_ALLOCATION:Lcom/oracle/svm/core/annotate/RestrictHeapAccess$Access;, reason = "Must not allocate in segfault handler.", overridesCallers = true)
MethodParameters:
Name Flags
context
private static void dumpInterruptibly(com.oracle.svm.core.RegisterDumper$Context);
descriptor: (Lcom/oracle/svm/core/RegisterDumper$Context;)V
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=4, locals=4, args_size=1
start local 0 0: invokestatic com.oracle.svm.core.log.Log.log:()Lcom/oracle/svm/core/log/Log;
astore 1
start local 1 1: aload 1
iconst_1
invokevirtual com.oracle.svm.core.log.Log.autoflush:(Z)Lcom/oracle/svm/core/log/Log;
pop
2: aload 1
invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
pop
3: aload 1
ldc "[ [ SubstrateSegfaultHandler caught a segfault. ] ]"
invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
pop
4: invokestatic com.oracle.svm.core.RegisterDumper.singleton:()Lcom/oracle/svm/core/RegisterDumper;
aload 0
invokeinterface com.oracle.svm.core.RegisterDumper.getSP:(Lcom/oracle/svm/core/RegisterDumper$Context;)Lorg/graalvm/word/PointerBase;
astore 2
start local 2 5: invokestatic com.oracle.svm.core.RegisterDumper.singleton:()Lcom/oracle/svm/core/RegisterDumper;
aload 0
invokeinterface com.oracle.svm.core.RegisterDumper.getIP:(Lcom/oracle/svm/core/RegisterDumper$Context;)Lorg/graalvm/word/PointerBase;
astore 3
start local 3 6: aload 1
aload 2
checkcast org.graalvm.word.Pointer
aload 3
checkcast org.graalvm.nativeimage.c.function.CodePointer
aload 0
invokestatic com.oracle.svm.core.SubstrateUtil.printDiagnostics:(Lcom/oracle/svm/core/log/Log;Lorg/graalvm/word/Pointer;Lorg/graalvm/nativeimage/c/function/CodePointer;Lcom/oracle/svm/core/RegisterDumper$Context;)V
7: aload 1
ldc "Segfault detected, aborting process. Use runtime option -R:-InstallSegfaultHandler if you don't want to use SubstrateSegfaultHandler."
invokevirtual com.oracle.svm.core.log.Log.string:(Ljava/lang/String;)Lcom/oracle/svm/core/log/Log;
invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
pop
8: aload 1
invokevirtual com.oracle.svm.core.log.Log.newline:()Lcom/oracle/svm/core/log/Log;
pop
9: ldc Lorg/graalvm/nativeimage/LogHandler;
invokestatic org.graalvm.nativeimage.ImageSingletons.lookup:(Ljava/lang/Class;)Ljava/lang/Object;
checkcast org.graalvm.nativeimage.LogHandler
invokeinterface org.graalvm.nativeimage.LogHandler.fatalError:()V
10: return
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 context Lcom/oracle/svm/core/RegisterDumper$Context;
1 11 1 log Lcom/oracle/svm/core/log/Log;
5 11 2 sp Lorg/graalvm/word/PointerBase;
6 11 3 ip Lorg/graalvm/word/PointerBase;
MethodParameters:
Name Flags
context
}
SourceFile: "SubstrateSegfaultHandler.java"
NestMembers:
com.oracle.svm.core.SubstrateSegfaultHandler$Options
InnerClasses:
public abstract Context = com.oracle.svm.core.RegisterDumper$Context of com.oracle.svm.core.RegisterDumper
public Options = com.oracle.svm.core.SubstrateSegfaultHandler$Options of com.oracle.svm.core.SubstrateSegfaultHandler
public final Access = com.oracle.svm.core.annotate.RestrictHeapAccess$Access of com.oracle.svm.core.annotate.RestrictHeapAccess
public StatusSupport = com.oracle.svm.core.thread.VMThreads$StatusSupport of com.oracle.svm.core.thread.VMThreads