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31b9229dd8
The 'utils' folder has become a dumping ground. This is an attempt to clean it up a little bit.
43 lines
1.1 KiB
D
43 lines
1.1 KiB
D
/* DTrace types and macros for runtime data structures */
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enum MetadataKind {
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StructMetadataKind = 1,
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EnumMetadataKind = 2,
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OpaqueMetadataKind = 8,
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TupleMetadataKind = 9,
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FunctionMetadataKind = 10,
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ExistentialMetadataKind = 12,
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MetatypeMetadataKind = 13,
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ObjCClassWrapperKind = 14,
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HeapLocalVariableKind = 64,
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HeapArrayKind = 65
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};
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typedef struct NominalTypeDescriptor {
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unsigned long kind;
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const char *name;
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unsigned long numFields;
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unsigned long fieldOffsetVectorOffset;
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const char *fieldNames;
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} NominalTypeDescriptor;
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typedef struct Metadata {
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void *valueWitnessTable;
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unsigned long kind;
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} Metadata;
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typedef struct ClassMetadata {
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void *valueWitnessTable;
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struct ClassMetadata *isa;
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struct ClassMetadata *super;
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void *data[3];
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NominalTypeDescriptor *descriptor;
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unsigned long instanceSize, instanceAlign;
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} ClassMetadata;
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#define copyinMetadata(T, ptr) \
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((T*)copyin((unsigned long)(ptr) - sizeof(void*), sizeof(T)))
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#define copyinNominalTypeDescriptor(ptr) \
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((NominalTypeDescriptor*)copyin((unsigned long)(ptr), sizeof(NominalTypeDescriptor)))
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