Add the 3.3.3 sources for class-dump.

class-dump/src/CDObjectiveC2Processor32.m

+// -*- mode: ObjC -*-
+
+//  This file is part of class-dump, a utility for examining the Objective-C segment of Mach-O files.
+//  Copyright (C) 1997-1998, 2000-2001, 2004-2010 Steve Nygard.
+
+#import "CDObjectiveC2Processor32.h"
+
+#import "CDMachOFile.h"
+#import "CDSection.h"
+#import "CDLCSegment.h"
+#import "CDDataCursor.h"
+#import "CDOCClass.h"
+#import "CDOCMethod.h"
+#import "CDOCIvar.h"
+#import "NSArray-Extensions.h"
+#import "CDLCSymbolTable.h"
+#import "CDOCCategory.h"
+#import "CDClassDump.h"
+#import "CDSymbol.h"
+#import "CDOCProperty.h"
+#import "cd_objc2.h"
+
+@implementation CDObjectiveC2Processor32
+
+- (void)loadProtocols;
+{
+    CDLCSegment *segment;
+    CDSection *section;
+    NSData *sectionData;
+    CDDataCursor *cursor;
+
+    segment = [machOFile segmentWithName:@"__DATA"];
+    section = [segment sectionWithName:@"__objc_protolist"];
+    sectionData = [section data];
+
+    cursor = [[CDDataCursor alloc] initWithData:sectionData];
+    [cursor setByteOrder:[machOFile byteOrder]];
+    while ([cursor isAtEnd] == NO)
+        [self protocolAtAddress:[cursor readInt32]];
+    [cursor release];
+
+    [self createUniquedProtocols];
+}
+
+- (void)loadClasses;
+{
+    CDLCSegment *segment;
+    CDSection *section;
+    NSData *sectionData;
+    CDDataCursor *cursor;
+
+    segment = [machOFile segmentWithName:@"__DATA"];
+    section = [segment sectionWithName:@"__objc_classlist"];
+    sectionData = [section data];
+
+    cursor = [[CDDataCursor alloc] initWithData:sectionData];
+    [cursor setByteOrder:[machOFile byteOrder]];
+    while ([cursor isAtEnd] == NO) {
+        uint32_t val;
+        CDOCClass *aClass;
+
+        val = [cursor readInt32];
+        aClass = [self loadClassAtAddress:val];
+        if (aClass != nil) {
+            [classes addObject:aClass];
+            [classesByAddress setObject:aClass forKey:[NSNumber numberWithUnsignedInteger:val]];
+        }
+    }
+
+    [cursor release];
+}
+
+- (void)loadCategories;
+{
+    CDLCSegment *segment;
+    CDSection *section;
+    NSData *sectionData;
+    CDDataCursor *cursor;
+
+    segment = [machOFile segmentWithName:@"__DATA"];
+    section = [segment sectionWithName:@"__objc_catlist"];
+    sectionData = [section data];
+
+    cursor = [[CDDataCursor alloc] initWithData:sectionData];
+    [cursor setByteOrder:[machOFile byteOrder]];
+    while ([cursor isAtEnd] == NO) {
+        CDOCCategory *category;
+
+        category = [self loadCategoryAtAddress:[cursor readInt32]];
+        if (category != nil)
+            [categories addObject:category];
+    }
+
+    [cursor release];
+}
+
+- (CDOCProtocol *)protocolAtAddress:(uint32_t)address;
+{
+    NSNumber *key;
+    CDOCProtocol *protocol;
+
+    if (address == 0)
+        return nil;
+
+    key = [NSNumber numberWithUnsignedInteger:address];
+    protocol = [protocolsByAddress objectForKey:key];
+    if (protocol == nil) {
+        struct cd_objc2_protocol_32 objc2Protocol;
+        CDDataCursor *cursor;
+        NSString *str;
+
+        protocol = [[[CDOCProtocol alloc] init] autorelease];
+        [protocolsByAddress setObject:protocol forKey:key];
+
+        cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+        [cursor setByteOrder:[machOFile byteOrder]];
+        [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+        NSParameterAssert([cursor offset] != 0);
+
+        objc2Protocol.isa = [cursor readInt32];
+        objc2Protocol.name = [cursor readInt32];
+        objc2Protocol.protocols = [cursor readInt32];
+        objc2Protocol.instanceMethods = [cursor readInt32];
+        objc2Protocol.classMethods = [cursor readInt32];
+        objc2Protocol.optionalInstanceMethods = [cursor readInt32];
+        objc2Protocol.optionalClassMethods = [cursor readInt32];
+        objc2Protocol.instanceProperties = [cursor readInt32];
+
+        //NSLog(@"----------------------------------------");
+        //NSLog(@"%08lx %08lx %08lx %08lx", objc2Protocol.isa, objc2Protocol.name, objc2Protocol.protocols, objc2Protocol.instanceMethods);
+        //NSLog(@"%08lx %08lx %08lx %08lx", objc2Protocol.classMethods, objc2Protocol.optionalInstanceMethods, objc2Protocol.optionalClassMethods, objc2Protocol.instanceProperties);
+
+        str = [machOFile stringAtAddress:objc2Protocol.name];
+        [protocol setName:str];
+
+        if (objc2Protocol.protocols != 0) {
+            uint32_t count, index;
+
+            [cursor setOffset:[machOFile dataOffsetForAddress:objc2Protocol.protocols]];
+            count = [cursor readInt32];
+            for (index = 0; index < count; index++) {
+                uint32_t val;
+                CDOCProtocol *anotherProtocol;
+
+                val = [cursor readInt32];
+                anotherProtocol = [self protocolAtAddress:val];
+                if (anotherProtocol != nil) {
+                    [protocol addProtocol:anotherProtocol];
+                } else {
+                    NSLog(@"Note: another protocol was nil.");
+                }
+            }
+        }
+
+        for (CDOCMethod *method in [self loadMethodsAtAddress:objc2Protocol.instanceMethods])
+            [protocol addInstanceMethod:method];
+
+        for (CDOCMethod *method in [self loadMethodsAtAddress:objc2Protocol.classMethods])
+            [protocol addClassMethod:method];
+
+        for (CDOCMethod *method in [self loadMethodsAtAddress:objc2Protocol.optionalInstanceMethods])
+            [protocol addOptionalInstanceMethod:method];
+
+        for (CDOCMethod *method in [self loadMethodsAtAddress:objc2Protocol.optionalClassMethods])
+            [protocol addOptionalClassMethod:method];
+
+        for (CDOCProperty *property in [self loadPropertiesAtAddress:objc2Protocol.instanceProperties])
+            [protocol addProperty:property];
+
+        [cursor release];
+    }
+
+    return protocol;
+}
+
+- (CDOCCategory *)loadCategoryAtAddress:(uint32_t)address;
+{
+    struct cd_objc2_category_32 objc2Category;
+    CDDataCursor *cursor;
+    NSString *str;
+    CDOCCategory *category;
+
+    if (address == 0)
+        return nil;
+
+    cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+    [cursor setByteOrder:[machOFile byteOrder]];
+    [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+    NSParameterAssert([cursor offset] != 0);
+
+    objc2Category.name = [cursor readInt32];
+    objc2Category.class = [cursor readInt32];
+    objc2Category.instanceMethods = [cursor readInt32];
+    objc2Category.classMethods = [cursor readInt32];
+    objc2Category.protocols = [cursor readInt32];
+    objc2Category.instanceProperties = [cursor readInt32];
+    objc2Category.v7 = [cursor readInt32];
+    objc2Category.v8 = [cursor readInt32];
+    //NSLog(@"----------------------------------------");
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2Category.name, objc2Category.class, objc2Category.instanceMethods, objc2Category.classMethods);
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2Category.protocols, objc2Category.instanceProperties, objc2Category.v7, objc2Category.v8);
+
+    category = [[[CDOCCategory alloc] init] autorelease];
+    str = [machOFile stringAtAddress:objc2Category.name];
+    [category setName:str];
+
+    for (CDOCMethod *method in [self loadMethodsAtAddress:objc2Category.instanceMethods])
+        [category addInstanceMethod:method];
+
+    for (CDOCMethod *method in [self loadMethodsAtAddress:objc2Category.classMethods])
+        [category addClassMethod:method];
+
+    for (CDOCProtocol *protocol in [self uniquedProtocolListAtAddress:objc2Category.protocols])
+        [category addProtocol:protocol];
+
+    for (CDOCProperty *property in [self loadPropertiesAtAddress:objc2Category.instanceProperties])
+        [category addProperty:property];
+
+    {
+        uint64_t classNameAddress = address + sizeof(objc2Category.name);
+
+        if ([machOFile hasRelocationEntryForAddress2:classNameAddress]) {
+            [category setClassName:[machOFile externalClassNameForAddress2:classNameAddress]];
+            //NSLog(@"category: got external class name (2): %@", [category className]);
+        } else if ([machOFile hasRelocationEntryForAddress:classNameAddress]) {
+            [category setClassName:[machOFile externalClassNameForAddress:classNameAddress]];
+            //NSLog(@"category: got external class name (1): %@", [aClass className]);
+        } else if (objc2Category.class != 0) {
+            CDOCClass *aClass;
+
+            aClass = [classesByAddress objectForKey:[NSNumber numberWithUnsignedInteger:objc2Category.class]];
+            [category setClassName:[aClass name]];
+        }
+    }
+
+    [cursor release];
+
+    return category;
+}
+
+- (CDOCClass *)loadClassAtAddress:(uint32_t)address;
+{
+    struct cd_objc2_class_32 objc2Class;
+    struct cd_objc2_class_ro_t_32 objc2ClassData;
+    CDDataCursor *cursor;
+    NSString *str;
+    CDOCClass *aClass;
+
+    if (address == 0)
+        return nil;
+
+    //NSLog(@"%s, address=%08lx", _cmd, address);
+
+    cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+    [cursor setByteOrder:[machOFile byteOrder]];
+    [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+    NSParameterAssert([cursor offset] != 0);
+
+    objc2Class.isa = [cursor readInt32];
+    objc2Class.superclass = [cursor readInt32];
+    objc2Class.cache = [cursor readInt32];
+    objc2Class.vtable = [cursor readInt32];
+    objc2Class.data = [cursor readInt32];
+    objc2Class.reserved1 = [cursor readInt32];
+    objc2Class.reserved2 = [cursor readInt32];
+    objc2Class.reserved3 = [cursor readInt32];
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2Class.isa, objc2Class.superclass, objc2Class.cache, objc2Class.vtable);
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2Class.data, objc2Class.reserved1, objc2Class.reserved2, objc2Class.reserved3);
+
+    NSParameterAssert(objc2Class.data != 0);
+    [cursor setOffset:[machOFile dataOffsetForAddress:objc2Class.data]];
+    objc2ClassData.flags = [cursor readInt32];
+    objc2ClassData.instanceStart = [cursor readInt32];
+    objc2ClassData.instanceSize = [cursor readInt32];
+    //objc2ClassData.reserved = [cursor readInt32];
+    objc2ClassData.reserved = 0;
+
+    objc2ClassData.ivarLayout = [cursor readInt32];
+    objc2ClassData.name = [cursor readInt32];
+    objc2ClassData.baseMethods = [cursor readInt32];
+    objc2ClassData.baseProtocols = [cursor readInt32];
+    objc2ClassData.ivars = [cursor readInt32];
+    objc2ClassData.weakIvarLayout = [cursor readInt32];
+    objc2ClassData.baseProperties = [cursor readInt32];
+
+    //NSLog(@"%08x %08x %08x %08x", objc2ClassData.flags, objc2ClassData.instanceStart, objc2ClassData.instanceSize, objc2ClassData.reserved);
+
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2ClassData.ivarLayout, objc2ClassData.name, objc2ClassData.baseMethods, objc2ClassData.baseProtocols);
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2ClassData.ivars, objc2ClassData.weakIvarLayout, objc2ClassData.baseProperties);
+    str = [machOFile stringAtAddress:objc2ClassData.name];
+    //NSLog(@"name = %@", str);
+
+    aClass = [[[CDOCClass alloc] init] autorelease];
+    [aClass setName:str];
+
+    for (CDOCMethod *method in [self loadMethodsAtAddress:objc2ClassData.baseMethods])
+        [aClass addInstanceMethod:method];
+
+    [aClass setIvars:[self loadIvarsAtAddress:objc2ClassData.ivars]];
+
+    [cursor release];
+
+    {
+        uint64_t classNameAddress = address + sizeof(objc2Class.isa);
+
+        if ([machOFile hasRelocationEntryForAddress2:classNameAddress]) {
+            [aClass setSuperClassName:[machOFile externalClassNameForAddress2:classNameAddress]];
+            //NSLog(@"class: got external class name (2): %@", [aClass superClassName]);
+        } else if ([machOFile hasRelocationEntryForAddress:classNameAddress]) {
+            [aClass setSuperClassName:[machOFile externalClassNameForAddress:classNameAddress]];
+            //NSLog(@"class: got external class name (1): %@", [aClass superClassName]);
+        } else if (objc2Class.superclass != 0) {
+            CDOCClass *sc;
+
+            sc = [self loadClassAtAddress:objc2Class.superclass];
+            [aClass setSuperClassName:[sc name]];
+        }
+    }
+
+    for (CDOCMethod *method in [self loadMethodsOfMetaClassAtAddress:objc2Class.isa])
+        [aClass addClassMethod:method];
+
+    // Process protocols
+    for (CDOCProtocol *protocol in [self uniquedProtocolListAtAddress:objc2ClassData.baseProtocols])
+        [aClass addProtocol:protocol];
+
+    for (CDOCProperty *property in [self loadPropertiesAtAddress:objc2ClassData.baseProperties])
+        [aClass addProperty:property];
+
+    return aClass;
+}
+
+- (NSArray *)loadPropertiesAtAddress:(uint32_t)address;
+{
+    NSMutableArray *properties;
+
+    properties = [NSMutableArray array];
+    if (address != 0) {
+        CDDataCursor *cursor;
+        struct cd_objc2_list_header listHeader;
+        uint32_t index;
+
+        cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+        [cursor setByteOrder:[machOFile byteOrder]];
+        [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+        NSParameterAssert([cursor offset] != 0);
+        //NSLog(@"property list data offset: %lu", [cursor offset]);
+
+        listHeader.entsize = [cursor readInt32];
+        listHeader.count = [cursor readInt32];
+        NSParameterAssert(listHeader.entsize == 8);
+
+        for (index = 0; index < listHeader.count; index++) {
+            struct cd_objc2_property_32 objc2Property;
+            NSString *name, *attributes;
+            CDOCProperty *property;
+
+            objc2Property.name = [cursor readInt32];
+            objc2Property.attributes = [cursor readInt32];
+            name = [machOFile stringAtAddress:objc2Property.name];
+            attributes = [machOFile stringAtAddress:objc2Property.attributes];
+
+            property = [[CDOCProperty alloc] initWithName:name attributes:attributes];
+            [properties addObject:property];
+            [property release];
+        }
+
+        [cursor release];
+    }
+
+    return properties;
+}
+
+// This just gets the methods.
+- (NSArray *)loadMethodsOfMetaClassAtAddress:(uint32_t)address;
+{
+    struct cd_objc2_class_32 objc2Class;
+    struct cd_objc2_class_ro_t_32 objc2ClassData;
+    CDDataCursor *cursor;
+
+    if (address == 0)
+        return nil;
+
+    cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+    [cursor setByteOrder:[machOFile byteOrder]];
+    [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+    NSParameterAssert([cursor offset] != 0);
+
+    objc2Class.isa = [cursor readInt32];
+    objc2Class.superclass = [cursor readInt32];
+    objc2Class.cache = [cursor readInt32];
+    objc2Class.vtable = [cursor readInt32];
+    objc2Class.data = [cursor readInt32];
+    objc2Class.reserved1 = [cursor readInt32];
+    objc2Class.reserved2 = [cursor readInt32];
+    objc2Class.reserved3 = [cursor readInt32];
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2Class.isa, objc2Class.superclass, objc2Class.cache, objc2Class.vtable);
+    //NSLog(@"%08lx %08lx %08lx %08lx", objc2Class.data, objc2Class.reserved1, objc2Class.reserved2, objc2Class.reserved3);
+
+    NSParameterAssert(objc2Class.data != 0);
+    [cursor setOffset:[machOFile dataOffsetForAddress:objc2Class.data]];
+    objc2ClassData.flags = [cursor readInt32];
+    objc2ClassData.instanceStart = [cursor readInt32];
+    objc2ClassData.instanceSize = [cursor readInt32];
+    //objc2ClassData.reserved = [cursor readInt32];
+    objc2ClassData.reserved = 0;
+
+    objc2ClassData.ivarLayout = [cursor readInt32];
+    objc2ClassData.name = [cursor readInt32];
+    objc2ClassData.baseMethods = [cursor readInt32];
+    objc2ClassData.baseProtocols = [cursor readInt32];
+    objc2ClassData.ivars = [cursor readInt32];
+    objc2ClassData.weakIvarLayout = [cursor readInt32];
+    objc2ClassData.baseProperties = [cursor readInt32];
+
+    [cursor release];
+
+    return [self loadMethodsAtAddress:objc2ClassData.baseMethods];
+}
+
+- (NSArray *)loadMethodsAtAddress:(uint32_t)address;
+{
+    NSMutableArray *methods;
+
+    methods = [NSMutableArray array];
+
+    if (address != 0) {
+        CDDataCursor *cursor;
+        struct cd_objc2_list_header listHeader;
+        uint32_t index;
+
+        cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+        [cursor setByteOrder:[machOFile byteOrder]];
+        [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+        NSParameterAssert([cursor offset] != 0);
+        //NSLog(@"method list data offset: %lu", [cursor offset]);
+
+        listHeader.entsize = [cursor readInt32];
+        listHeader.count = [cursor readInt32];
+        NSParameterAssert(listHeader.entsize == 12);
+
+        for (index = 0; index < listHeader.count; index++) {
+            struct cd_objc2_method_32 objc2Method;
+            NSString *name, *types;
+            CDOCMethod *method;
+
+            objc2Method.name = [cursor readInt32];
+            objc2Method.types = [cursor readInt32];
+            objc2Method.imp = [cursor readInt32];
+            name = [machOFile stringAtAddress:objc2Method.name];
+            types = [machOFile stringAtAddress:objc2Method.types];
+
+            //NSLog(@"%3u: %08lx %08lx %08lx", index, objc2Method.name, objc2Method.types, objc2Method.imp);
+            //NSLog(@"name: %@", name);
+            //NSLog(@"types: %@", types);
+
+            method = [[CDOCMethod alloc] initWithName:name type:types imp:objc2Method.imp];
+            [methods addObject:method];
+            [method release];
+        }
+
+        [cursor release];
+    }
+
+    return [methods reversedArray];
+}
+
+- (NSArray *)loadIvarsAtAddress:(uint32_t)address;
+{
+    NSMutableArray *ivars;
+
+    ivars = [NSMutableArray array];
+
+    if (address != 0) {
+        CDDataCursor *cursor;
+        struct cd_objc2_list_header listHeader;
+        uint32_t index;
+
+        cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+        [cursor setByteOrder:[machOFile byteOrder]];
+        [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+        NSParameterAssert([cursor offset] != 0);
+        //NSLog(@"ivar list data offset: %lu", [cursor offset]);
+
+        listHeader.entsize = [cursor readInt32];
+        listHeader.count = [cursor readInt32];
+        NSParameterAssert(listHeader.entsize == 20);
+
+        for (index = 0; index < listHeader.count; index++) {
+            struct cd_objc2_ivar_32 objc2Ivar;
+            CDOCIvar *ivar;
+
+            objc2Ivar.offset = [cursor readInt32];
+            objc2Ivar.name = [cursor readInt32];
+            objc2Ivar.type = [cursor readInt32];
+            objc2Ivar.alignment = [cursor readInt32];
+            objc2Ivar.size = [cursor readInt32];
+
+            if (objc2Ivar.name != 0) {
+                NSString *name, *type;
+
+                name = [machOFile stringAtAddress:objc2Ivar.name];
+                type = [machOFile stringAtAddress:objc2Ivar.type];
+
+                ivar = [[CDOCIvar alloc] initWithName:name type:type offset:objc2Ivar.offset];
+                [ivars addObject:ivar];
+                [ivar release];
+            } else {
+                //NSLog(@"%08lx %08lx %08lx  %08x %08x", objc2Ivar.offset, objc2Ivar.name, objc2Ivar.type, objc2Ivar.alignment, objc2Ivar.size);
+            }
+        }
+
+        [cursor release];
+    }
+
+    return ivars;
+}
+
+// Returns list of uniqued protocols.
+- (NSArray *)uniquedProtocolListAtAddress:(uint32_t)address;
+{
+    NSMutableArray *protocols;
+
+    protocols = [[[NSMutableArray alloc] init] autorelease];;
+
+    if (address != 0) {
+        CDDataCursor *cursor;
+        uint32_t count, index;
+
+        cursor = [[CDDataCursor alloc] initWithData:[machOFile data]];
+        [cursor setByteOrder:[machOFile byteOrder]];
+        [cursor setOffset:[machOFile dataOffsetForAddress:address]];
+
+        count = [cursor readInt32];
+        for (index = 0; index < count; index++) {
+            uint32_t val;
+            CDOCProtocol *protocol, *uniqueProtocol;
+
+            val = [cursor readInt32];
+            if (val == 0) {
+                NSLog(@"Warning: protocol address in protocol list was 0.");
+            } else {
+                protocol = [protocolsByAddress objectForKey:[NSNumber numberWithUnsignedInteger:val]];
+                if (protocol != nil) {
+                    uniqueProtocol = [protocolsByName objectForKey:[protocol name]];
+                    if (uniqueProtocol != nil)
+                        [protocols addObject:uniqueProtocol];
+                }
+            }
+        }
+
+        [cursor release];
+    }
+
+    return protocols;
+}
+
+@end