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For llvm-objdump added support for printing Objc1 32-bit runtime meta data

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with the existing -objc-meta-data and -macho options for Mach-O files.

llvm-svn: 235119
This commit is contained in:
Kevin Enderby 2015-04-16 17:19:59 +00:00
parent 01ceef5d17
commit b7179f7f1b
4 changed files with 1121 additions and 11 deletions
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test/tools/llvm-objdump/X86/Inputs/Objc1.32bit.exe.macho-i386 Executable file
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test/tools/llvm-objdump/X86/Inputs/Objc1.32bit.obj.macho-i386 Normal file
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285
test/tools/llvm-objdump/X86/macho-objc-meta-data.test
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@ -2,6 +2,8 @@
# RUN: llvm-objdump -m -objc-meta-data %p/Inputs/Objc2.64bit.obj.macho-x86_64 | FileCheck %s -check-prefix=OBJC2_64BIT_OBJ
# RUN: llvm-objdump -m -objc-meta-data %p/Inputs/Objc2.32bit.exe.macho-i386 | FileCheck %s -check-prefix=OBJC2_32BIT_EXE
# RUN: llvm-objdump -m -objc-meta-data %p/Inputs/Objc2.32bit.obj.macho-i386 | FileCheck %s -check-prefix=OBJC2_32BIT_OBJ
# RUN: llvm-objdump -m -objc-meta-data %p/Inputs/Objc1.32bit.exe.macho-i386 | FileCheck %s -check-prefix=OBJC1_32BIT_EXE
# RUN: llvm-objdump -m -objc-meta-data %p/Inputs/Objc1.32bit.obj.macho-i386 | FileCheck %s -check-prefix=OBJC1_32BIT_OBJ
OBJC2_64BIT_EXE: Contents of (__DATA,__objc_classlist) section
OBJC2_64BIT_EXE: 0000000100002028 0x1000029f0
@ -613,3 +615,286 @@ OBJC2_32BIT_OBJ: 0000393c 0x3914 _OBJC_CLASS_$_DetailViewController
OBJC2_32BIT_OBJ: Contents of (__DATA,__objc_imageinfo) section
OBJC2_32BIT_OBJ: version 0
OBJC2_32BIT_OBJ: flags 0x20
OBJC1_32BIT_EXE: Objective-C segment
OBJC1_32BIT_EXE: Module 0x4128
OBJC1_32BIT_EXE: version 7
OBJC1_32BIT_EXE: size 16
OBJC1_32BIT_EXE: name
OBJC1_32BIT_EXE: symtab 0x00004108
OBJC1_32BIT_EXE: sel_ref_cnt 0
OBJC1_32BIT_EXE: refs 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: cls_def_cnt 1
OBJC1_32BIT_EXE: cat_def_cnt 0
OBJC1_32BIT_EXE: Class Definitions
OBJC1_32BIT_EXE: defs[0] 0x00004000
OBJC1_32BIT_EXE: isa 0x00004068
OBJC1_32BIT_EXE: super_class 0x000025b8 NSViewController
OBJC1_32BIT_EXE: name 0x000025c9 ViewController
OBJC1_32BIT_EXE: version 0x00000000
OBJC1_32BIT_EXE: info 0x00000001 CLS_CLASS
OBJC1_32BIT_EXE: instance_size 0x00000034
OBJC1_32BIT_EXE: ivars 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: methods 0x000040c8
OBJC1_32BIT_EXE: obsolete 0x00000000
OBJC1_32BIT_EXE: method_count 2
OBJC1_32BIT_EXE: method_name 0x0000257c viewDidLoad
OBJC1_32BIT_EXE: method_types 0x0000259e v8@0:4
OBJC1_32BIT_EXE: method_imp 0x00002430
OBJC1_32BIT_EXE: method_name 0x00002588 setRepresentedObject:
OBJC1_32BIT_EXE: method_types 0x000025a5 v12@0:4@8
OBJC1_32BIT_EXE: method_imp 0x00002480
OBJC1_32BIT_EXE: cache 0x00000000
OBJC1_32BIT_EXE: protocols 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: Meta Class
OBJC1_32BIT_EXE: isa 0x000025af NSObject
OBJC1_32BIT_EXE: super_class 0x000025b8 NSViewController
OBJC1_32BIT_EXE: name 0x000025c9 ViewController
OBJC1_32BIT_EXE: version 0x00000000
OBJC1_32BIT_EXE: info 0x00000002 CLS_META
OBJC1_32BIT_EXE: instance_size 0x00000030
OBJC1_32BIT_EXE: ivars 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: cache 0x00000000
OBJC1_32BIT_EXE: protocols 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: Module 0x4138
OBJC1_32BIT_EXE: version 7
OBJC1_32BIT_EXE: size 16
OBJC1_32BIT_EXE: name
OBJC1_32BIT_EXE: symtab 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: Module 0x4148
OBJC1_32BIT_EXE: version 7
OBJC1_32BIT_EXE: size 16
OBJC1_32BIT_EXE: name
OBJC1_32BIT_EXE: symtab 0x00004118
OBJC1_32BIT_EXE: sel_ref_cnt 0
OBJC1_32BIT_EXE: refs 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: cls_def_cnt 1
OBJC1_32BIT_EXE: cat_def_cnt 0
OBJC1_32BIT_EXE: Class Definitions
OBJC1_32BIT_EXE: defs[0] 0x00004030
OBJC1_32BIT_EXE: isa 0x00004098
OBJC1_32BIT_EXE: super_class 0x000025af NSObject
OBJC1_32BIT_EXE: name 0x00002faa AppDelegate
OBJC1_32BIT_EXE: version 0x00000000
OBJC1_32BIT_EXE: info 0x00000001 CLS_CLASS
OBJC1_32BIT_EXE: instance_size 0x00000004
OBJC1_32BIT_EXE: ivars 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: methods 0x000040e8
OBJC1_32BIT_EXE: obsolete 0x00000000
OBJC1_32BIT_EXE: method_count 2
OBJC1_32BIT_EXE: method_name 0x00002c5b applicationDidFinishLaunching:
OBJC1_32BIT_EXE: method_types 0x000025a5 v12@0:4@8
OBJC1_32BIT_EXE: method_imp 0x00002510
OBJC1_32BIT_EXE: method_name 0x00002d6f applicationWillTerminate:
OBJC1_32BIT_EXE: method_types 0x000025a5 v12@0:4@8
OBJC1_32BIT_EXE: method_imp 0x00002530
OBJC1_32BIT_EXE: cache 0x00000000
OBJC1_32BIT_EXE: protocols 0x000043b4
OBJC1_32BIT_EXE: next 0x00000000
OBJC1_32BIT_EXE: count 1
OBJC1_32BIT_EXE: list[0] 0x00004390
OBJC1_32BIT_EXE: isa 0x000030b0
OBJC1_32BIT_EXE: protocol_name 0x00002dd3 NSApplicationDelegate
OBJC1_32BIT_EXE: protocol_list 0x000043a4
OBJC1_32BIT_EXE: next 0x00000000
OBJC1_32BIT_EXE: count 1
OBJC1_32BIT_EXE: list[0] 0x0000437c
OBJC1_32BIT_EXE: isa 0x00003120
OBJC1_32BIT_EXE: protocol_name 0x000025af NSObject
OBJC1_32BIT_EXE: protocol_list 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: instance_methods 0x00004290
OBJC1_32BIT_EXE: count 19
OBJC1_32BIT_EXE: list[0]
OBJC1_32BIT_EXE: name 0x00002de9 isEqual:
OBJC1_32BIT_EXE: types 0x000026e7 c12@0:4@8
OBJC1_32BIT_EXE: list[1]
OBJC1_32BIT_EXE: name 0x00002df2 class
OBJC1_32BIT_EXE: types 0x00002df8 #8@0:4
OBJC1_32BIT_EXE: list[2]
OBJC1_32BIT_EXE: name 0x00002dff self
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: list[3]
OBJC1_32BIT_EXE: name 0x00002e0b performSelector:
OBJC1_32BIT_EXE: types 0x00002e1c @12@0:4:8
OBJC1_32BIT_EXE: list[4]
OBJC1_32BIT_EXE: name 0x00002e26 performSelector:withObject:
OBJC1_32BIT_EXE: types 0x00002e42 @16@0:4:8@12
OBJC1_32BIT_EXE: list[5]
OBJC1_32BIT_EXE: name 0x00002e4f performSelector:withObject:withObject:
OBJC1_32BIT_EXE: types 0x00002e76 @20@0:4:8@12@16
OBJC1_32BIT_EXE: list[6]
OBJC1_32BIT_EXE: name 0x00002e86 isProxy
OBJC1_32BIT_EXE: types 0x00002e8e c8@0:4
OBJC1_32BIT_EXE: list[7]
OBJC1_32BIT_EXE: name 0x00002e95 isKindOfClass:
OBJC1_32BIT_EXE: types 0x00002ea4 c12@0:4#8
OBJC1_32BIT_EXE: list[8]
OBJC1_32BIT_EXE: name 0x00002eae isMemberOfClass:
OBJC1_32BIT_EXE: types 0x00002ea4 c12@0:4#8
OBJC1_32BIT_EXE: list[9]
OBJC1_32BIT_EXE: name 0x00002ebf conformsToProtocol:
OBJC1_32BIT_EXE: types 0x000026e7 c12@0:4@8
OBJC1_32BIT_EXE: list[10]
OBJC1_32BIT_EXE: name 0x00002ee7 respondsToSelector:
OBJC1_32BIT_EXE: types 0x00002efb c12@0:4:8
OBJC1_32BIT_EXE: list[11]
OBJC1_32BIT_EXE: name 0x00002f05 retain
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: list[12]
OBJC1_32BIT_EXE: name 0x00002f0c release
OBJC1_32BIT_EXE: types 0x00002f14 Vv8@0:4
OBJC1_32BIT_EXE: list[13]
OBJC1_32BIT_EXE: name 0x00002f1c autorelease
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: list[14]
OBJC1_32BIT_EXE: name 0x00002f28 retainCount
OBJC1_32BIT_EXE: types 0x00002f34 I8@0:4
OBJC1_32BIT_EXE: list[15]
OBJC1_32BIT_EXE: name 0x00002f3b zone
OBJC1_32BIT_EXE: types 0x00002f40 ^{_NSZone=}8@0:4
OBJC1_32BIT_EXE: list[16]
OBJC1_32BIT_EXE: name 0x00002f51 hash
OBJC1_32BIT_EXE: types 0x00002f34 I8@0:4
OBJC1_32BIT_EXE: list[17]
OBJC1_32BIT_EXE: name 0x00002f56 superclass
OBJC1_32BIT_EXE: types 0x00002df8 #8@0:4
OBJC1_32BIT_EXE: list[18]
OBJC1_32BIT_EXE: name 0x00002f61 description
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: class_methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: instance_methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: class_methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: Meta Class
OBJC1_32BIT_EXE: isa 0x000025af NSObject
OBJC1_32BIT_EXE: super_class 0x000025af NSObject
OBJC1_32BIT_EXE: name 0x00002faa AppDelegate
OBJC1_32BIT_EXE: version 0x00000000
OBJC1_32BIT_EXE: info 0x00000002 CLS_META
OBJC1_32BIT_EXE: instance_size 0x00000030
OBJC1_32BIT_EXE: ivars 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: cache 0x00000000
OBJC1_32BIT_EXE: protocols 0x000043b4
OBJC1_32BIT_EXE: next 0x00000000
OBJC1_32BIT_EXE: count 1
OBJC1_32BIT_EXE: list[0] 0x00004390
OBJC1_32BIT_EXE: isa 0x000030b0
OBJC1_32BIT_EXE: protocol_name 0x00002dd3 NSApplicationDelegate
OBJC1_32BIT_EXE: protocol_list 0x000043a4
OBJC1_32BIT_EXE: next 0x00000000
OBJC1_32BIT_EXE: count 1
OBJC1_32BIT_EXE: list[0] 0x0000437c
OBJC1_32BIT_EXE: isa 0x00003120
OBJC1_32BIT_EXE: protocol_name 0x000025af NSObject
OBJC1_32BIT_EXE: protocol_list 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: instance_methods 0x00004290
OBJC1_32BIT_EXE: count 19
OBJC1_32BIT_EXE: list[0]
OBJC1_32BIT_EXE: name 0x00002de9 isEqual:
OBJC1_32BIT_EXE: types 0x000026e7 c12@0:4@8
OBJC1_32BIT_EXE: list[1]
OBJC1_32BIT_EXE: name 0x00002df2 class
OBJC1_32BIT_EXE: types 0x00002df8 #8@0:4
OBJC1_32BIT_EXE: list[2]
OBJC1_32BIT_EXE: name 0x00002dff self
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: list[3]
OBJC1_32BIT_EXE: name 0x00002e0b performSelector:
OBJC1_32BIT_EXE: types 0x00002e1c @12@0:4:8
OBJC1_32BIT_EXE: list[4]
OBJC1_32BIT_EXE: name 0x00002e26 performSelector:withObject:
OBJC1_32BIT_EXE: types 0x00002e42 @16@0:4:8@12
OBJC1_32BIT_EXE: list[5]
OBJC1_32BIT_EXE: name 0x00002e4f performSelector:withObject:withObject:
OBJC1_32BIT_EXE: types 0x00002e76 @20@0:4:8@12@16
OBJC1_32BIT_EXE: list[6]
OBJC1_32BIT_EXE: name 0x00002e86 isProxy
OBJC1_32BIT_EXE: types 0x00002e8e c8@0:4
OBJC1_32BIT_EXE: list[7]
OBJC1_32BIT_EXE: name 0x00002e95 isKindOfClass:
OBJC1_32BIT_EXE: types 0x00002ea4 c12@0:4#8
OBJC1_32BIT_EXE: list[8]
OBJC1_32BIT_EXE: name 0x00002eae isMemberOfClass:
OBJC1_32BIT_EXE: types 0x00002ea4 c12@0:4#8
OBJC1_32BIT_EXE: list[9]
OBJC1_32BIT_EXE: name 0x00002ebf conformsToProtocol:
OBJC1_32BIT_EXE: types 0x000026e7 c12@0:4@8
OBJC1_32BIT_EXE: list[10]
OBJC1_32BIT_EXE: name 0x00002ee7 respondsToSelector:
OBJC1_32BIT_EXE: types 0x00002efb c12@0:4:8
OBJC1_32BIT_EXE: list[11]
OBJC1_32BIT_EXE: name 0x00002f05 retain
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: list[12]
OBJC1_32BIT_EXE: name 0x00002f0c release
OBJC1_32BIT_EXE: types 0x00002f14 Vv8@0:4
OBJC1_32BIT_EXE: list[13]
OBJC1_32BIT_EXE: name 0x00002f1c autorelease
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: list[14]
OBJC1_32BIT_EXE: name 0x00002f28 retainCount
OBJC1_32BIT_EXE: types 0x00002f34 I8@0:4
OBJC1_32BIT_EXE: list[15]
OBJC1_32BIT_EXE: name 0x00002f3b zone
OBJC1_32BIT_EXE: types 0x00002f40 ^{_NSZone=}8@0:4
OBJC1_32BIT_EXE: list[16]
OBJC1_32BIT_EXE: name 0x00002f51 hash
OBJC1_32BIT_EXE: types 0x00002f34 I8@0:4
OBJC1_32BIT_EXE: list[17]
OBJC1_32BIT_EXE: name 0x00002f56 superclass
OBJC1_32BIT_EXE: types 0x00002df8 #8@0:4
OBJC1_32BIT_EXE: list[18]
OBJC1_32BIT_EXE: name 0x00002f61 description
OBJC1_32BIT_EXE: types 0x00002e04 @8@0:4
OBJC1_32BIT_EXE: class_methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: instance_methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: class_methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_EXE: Contents of (__OBJC,__image_info) section
OBJC1_32BIT_EXE: version 0
OBJC1_32BIT_EXE: flags 0x0 RR
OBJC1_32BIT_OBJ: Objective-C segment
OBJC1_32BIT_OBJ: Module 0xb344
OBJC1_32BIT_OBJ: version 7
OBJC1_32BIT_OBJ: size 16
OBJC1_32BIT_OBJ: name
OBJC1_32BIT_OBJ: symtab 0x0000b334
OBJC1_32BIT_OBJ: sel_ref_cnt 0
OBJC1_32BIT_OBJ: refs 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_OBJ: cls_def_cnt 1
OBJC1_32BIT_OBJ: cat_def_cnt 0
OBJC1_32BIT_OBJ: Class Definitions
OBJC1_32BIT_OBJ: defs[0] 0x0000b24c
OBJC1_32BIT_OBJ: isa 0x0000b2e4
OBJC1_32BIT_OBJ: super_class 0x0000b2b8 NSViewController
OBJC1_32BIT_OBJ: name 0x0000b2c9 ViewController
OBJC1_32BIT_OBJ: version 0x00000000
OBJC1_32BIT_OBJ: info 0x00000001 CLS_CLASS
OBJC1_32BIT_OBJ: instance_size 0x00000034
OBJC1_32BIT_OBJ: ivars 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_OBJ: methods 0x0000b314
OBJC1_32BIT_OBJ: obsolete 0x00000000
OBJC1_32BIT_OBJ: method_count 2
OBJC1_32BIT_OBJ: method_name 0x0000b27c viewDidLoad
OBJC1_32BIT_OBJ: method_types 0x0000b29e v8@0:4
OBJC1_32BIT_OBJ: method_imp 0x00000000 -[ViewController viewDidLoad]
OBJC1_32BIT_OBJ: method_name 0x0000b288 setRepresentedObject:
OBJC1_32BIT_OBJ: method_types 0x0000b2a5 v12@0:4@8
OBJC1_32BIT_OBJ: method_imp 0x00000050 -[ViewController setRepresentedObject:]
OBJC1_32BIT_OBJ: cache 0x00000000
OBJC1_32BIT_OBJ: protocols 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_OBJ: Meta Class
OBJC1_32BIT_OBJ: isa 0x0000b2af NSObject
OBJC1_32BIT_OBJ: super_class 0x0000b2b8 NSViewController
OBJC1_32BIT_OBJ: name 0x0000b2c9 ViewController
OBJC1_32BIT_OBJ: version 0x00000000
OBJC1_32BIT_OBJ: info 0x00000002 CLS_META
OBJC1_32BIT_OBJ: instance_size 0x00000030
OBJC1_32BIT_OBJ: ivars 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_OBJ: methods 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_OBJ: cache 0x00000000
OBJC1_32BIT_OBJ: protocols 0x00000000 (not in an __OBJC section)
OBJC1_32BIT_OBJ: Contents of (__OBJC,__image_info) section
OBJC1_32BIT_OBJ: version 0
OBJC1_32BIT_OBJ: flags 0x0 RR

847
tools/llvm-objdump/MachODump.cpp
View File

@ -612,7 +612,8 @@ static void CreateSymbolAddressMap(MachOObjectFile *O,
Symbol.getAddress(Address);
StringRef SymName;
Symbol.getName(SymName);
(*AddrMap)[Address] = SymName;
if (!SymName.startswith(".objc"))
(*AddrMap)[Address] = SymName;
}
}
}
@ -2404,13 +2405,22 @@ static uint64_t GuessPointerPointer(uint64_t ReferenceValue,
// section nullptr is returned.
static const char *get_pointer_64(uint64_t Address, uint32_t &offset,
uint32_t &left, SectionRef &S,
DisassembleInfo *info) {
DisassembleInfo *info,
bool objc_only = false) {
offset = 0;
left = 0;
S = SectionRef();
for (unsigned SectIdx = 0; SectIdx != info->Sections->size(); SectIdx++) {
uint64_t SectAddress = ((*(info->Sections))[SectIdx]).getAddress();
uint64_t SectSize = ((*(info->Sections))[SectIdx]).getSize();
if (objc_only) {
StringRef SectName;
((*(info->Sections))[SectIdx]).getName(SectName);
DataRefImpl Ref = ((*(info->Sections))[SectIdx]).getRawDataRefImpl();
StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
if (SegName != "__OBJC" && SectName != "__cstring")
continue;
}
if (Address >= SectAddress && Address < SectAddress + SectSize) {
S = (*(info->Sections))[SectIdx];
offset = Address - SectAddress;
@ -2425,8 +2435,9 @@ static const char *get_pointer_64(uint64_t Address, uint32_t &offset,
static const char *get_pointer_32(uint32_t Address, uint32_t &offset,
uint32_t &left, SectionRef &S,
DisassembleInfo *info) {
return get_pointer_64(Address, offset, left, S, info);
DisassembleInfo *info,
bool objc_only = false) {
return get_pointer_64(Address, offset, left, S, info, objc_only);
}
// get_symbol_64() returns the name of a symbol (or nullptr) and the address of
@ -2705,6 +2716,10 @@ struct objc_image_info32 {
uint32_t version;
uint32_t flags;
};
struct imageInfo_t {
uint32_t version;
uint32_t flags;
};
/* masks for objc_image_info.flags */
#define OBJC_IMAGE_IS_REPLACEMENT (1 << 0)
#define OBJC_IMAGE_SUPPORTS_GC (1 << 1)
@ -2719,6 +2734,101 @@ struct message_ref32 {
uint32_t sel; /* SEL (32-bit pointer) */
};
// Objective-C 1 (32-bit only) meta data structs.
struct objc_module_t {
uint32_t version;
uint32_t size;
uint32_t name; /* char * (32-bit pointer) */
uint32_t symtab; /* struct objc_symtab * (32-bit pointer) */
};
struct objc_symtab_t {
uint32_t sel_ref_cnt;
uint32_t refs; /* SEL * (32-bit pointer) */
uint16_t cls_def_cnt;
uint16_t cat_def_cnt;
// uint32_t defs[1]; /* void * (32-bit pointer) variable size */
};
struct objc_class_t {
uint32_t isa; /* struct objc_class * (32-bit pointer) */
uint32_t super_class; /* struct objc_class * (32-bit pointer) */
uint32_t name; /* const char * (32-bit pointer) */
int32_t version;
int32_t info;
int32_t instance_size;
uint32_t ivars; /* struct objc_ivar_list * (32-bit pointer) */
uint32_t methodLists; /* struct objc_method_list ** (32-bit pointer) */
uint32_t cache; /* struct objc_cache * (32-bit pointer) */
uint32_t protocols; /* struct objc_protocol_list * (32-bit pointer) */
};
#define CLS_GETINFO(cls, infomask) ((cls)->info & (infomask))
// class is not a metaclass
#define CLS_CLASS 0x1
// class is a metaclass
#define CLS_META 0x2
struct objc_category_t {
uint32_t category_name; /* char * (32-bit pointer) */
uint32_t class_name; /* char * (32-bit pointer) */
uint32_t instance_methods; /* struct objc_method_list * (32-bit pointer) */
uint32_t class_methods; /* struct objc_method_list * (32-bit pointer) */
uint32_t protocols; /* struct objc_protocol_list * (32-bit ptr) */
};
struct objc_ivar_t {
uint32_t ivar_name; /* char * (32-bit pointer) */
uint32_t ivar_type; /* char * (32-bit pointer) */
int32_t ivar_offset;
};
struct objc_ivar_list_t {
int32_t ivar_count;
// struct objc_ivar_t ivar_list[1]; /* variable length structure */
};
struct objc_method_list_t {
uint32_t obsolete; /* struct objc_method_list * (32-bit pointer) */
int32_t method_count;
// struct objc_method_t method_list[1]; /* variable length structure */
};
struct objc_method_t {
uint32_t method_name; /* SEL, aka struct objc_selector * (32-bit pointer) */
uint32_t method_types; /* char * (32-bit pointer) */
uint32_t method_imp; /* IMP, aka function pointer, (*IMP)(id, SEL, ...)
(32-bit pointer) */
};
struct objc_protocol_list_t {
uint32_t next; /* struct objc_protocol_list * (32-bit pointer) */
int32_t count;
// uint32_t list[1]; /* Protocol *, aka struct objc_protocol_t *
// (32-bit pointer) */
};
struct objc_protocol_t {
uint32_t isa; /* struct objc_class * (32-bit pointer) */
uint32_t protocol_name; /* char * (32-bit pointer) */
uint32_t protocol_list; /* struct objc_protocol_list * (32-bit pointer) */
uint32_t instance_methods; /* struct objc_method_description_list *
(32-bit pointer) */
uint32_t class_methods; /* struct objc_method_description_list *
(32-bit pointer) */
};
struct objc_method_description_list_t {
int32_t count;
// struct objc_method_description_t list[1];
};
struct objc_method_description_t {
uint32_t name; /* SEL, aka struct objc_selector * (32-bit pointer) */
uint32_t types; /* char * (32-bit pointer) */
};
inline void swapStruct(struct cfstring64_t &cfs) {
sys::swapByteOrder(cfs.isa);
sys::swapByteOrder(cfs.flags);
@ -2895,6 +3005,11 @@ inline void swapStruct(struct objc_image_info32 &o) {
sys::swapByteOrder(o.flags);
}
inline void swapStruct(struct imageInfo_t &o) {
sys::swapByteOrder(o.version);
sys::swapByteOrder(o.flags);
}
inline void swapStruct(struct message_ref64 &mr) {
sys::swapByteOrder(mr.imp);
sys::swapByteOrder(mr.sel);
@ -2905,6 +3020,84 @@ inline void swapStruct(struct message_ref32 &mr) {
sys::swapByteOrder(mr.sel);
}
inline void swapStruct(struct objc_module_t &module) {
sys::swapByteOrder(module.version);
sys::swapByteOrder(module.size);
sys::swapByteOrder(module.name);
sys::swapByteOrder(module.symtab);
};
inline void swapStruct(struct objc_symtab_t &symtab) {
sys::swapByteOrder(symtab.sel_ref_cnt);
sys::swapByteOrder(symtab.refs);
sys::swapByteOrder(symtab.cls_def_cnt);
sys::swapByteOrder(symtab.cat_def_cnt);
};
inline void swapStruct(struct objc_class_t &objc_class) {
sys::swapByteOrder(objc_class.isa);
sys::swapByteOrder(objc_class.super_class);
sys::swapByteOrder(objc_class.name);
sys::swapByteOrder(objc_class.version);
sys::swapByteOrder(objc_class.info);
sys::swapByteOrder(objc_class.instance_size);
sys::swapByteOrder(objc_class.ivars);
sys::swapByteOrder(objc_class.methodLists);
sys::swapByteOrder(objc_class.cache);
sys::swapByteOrder(objc_class.protocols);
};
inline void swapStruct(struct objc_category_t &objc_category) {
sys::swapByteOrder(objc_category.category_name);
sys::swapByteOrder(objc_category.class_name);
sys::swapByteOrder(objc_category.instance_methods);
sys::swapByteOrder(objc_category.class_methods);
sys::swapByteOrder(objc_category.protocols);
}
inline void swapStruct(struct objc_ivar_list_t &objc_ivar_list) {
sys::swapByteOrder(objc_ivar_list.ivar_count);
}
inline void swapStruct(struct objc_ivar_t &objc_ivar) {
sys::swapByteOrder(objc_ivar.ivar_name);
sys::swapByteOrder(objc_ivar.ivar_type);
sys::swapByteOrder(objc_ivar.ivar_offset);
};
inline void swapStruct(struct objc_method_list_t &method_list) {
sys::swapByteOrder(method_list.obsolete);
sys::swapByteOrder(method_list.method_count);
}
inline void swapStruct(struct objc_method_t &method) {
sys::swapByteOrder(method.method_name);
sys::swapByteOrder(method.method_types);
sys::swapByteOrder(method.method_imp);
}
inline void swapStruct(struct objc_protocol_list_t &protocol_list) {
sys::swapByteOrder(protocol_list.next);
sys::swapByteOrder(protocol_list.count);
}
inline void swapStruct(struct objc_protocol_t &protocol) {
sys::swapByteOrder(protocol.isa);
sys::swapByteOrder(protocol.protocol_name);
sys::swapByteOrder(protocol.protocol_list);
sys::swapByteOrder(protocol.instance_methods);
sys::swapByteOrder(protocol.class_methods);
}
inline void swapStruct(struct objc_method_description_list_t &mdl) {
sys::swapByteOrder(mdl.count);
}
inline void swapStruct(struct objc_method_description_t &md) {
sys::swapByteOrder(md.name);
sys::swapByteOrder(md.types);
}
static const char *get_dyld_bind_info_symbolname(uint64_t ReferenceValue,
struct DisassembleInfo *info);
@ -3248,10 +3441,9 @@ static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info,
const char *indent) {
struct method_list32_t ml;
struct method32_t m;
const char *r;
const char *r, *name;
uint32_t offset, xoffset, left, i;
SectionRef S, xS;
const char *name;
r = get_pointer_32(p, offset, left, S, info);
if (r == nullptr)
@ -3306,6 +3498,78 @@ static void print_method_list32_t(uint64_t p, struct DisassembleInfo *info,
}
}
static bool print_method_list(uint32_t p, struct DisassembleInfo *info) {
uint32_t offset, left, xleft;
SectionRef S;
struct objc_method_list_t method_list;
struct objc_method_t method;
const char *r, *methods, *name, *SymbolName;
int32_t i;
r = get_pointer_32(p, offset, left, S, info, true);
if (r == nullptr)
return true;
outs() << "\n";
if (left > sizeof(struct objc_method_list_t)) {
memcpy(&method_list, r, sizeof(struct objc_method_list_t));
} else {
outs() << "\t\t objc_method_list extends past end of the section\n";
memset(&method_list, '\0', sizeof(struct objc_method_list_t));
memcpy(&method_list, r, left);
}
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(method_list);
outs() << "\t\t obsolete "
<< format("0x%08" PRIx32, method_list.obsolete) << "\n";
outs() << "\t\t method_count " << method_list.method_count << "\n";
methods = r + sizeof(struct objc_method_list_t);
for (i = 0; i < method_list.method_count; i++) {
if ((i + 1) * sizeof(struct objc_method_t) > left) {
outs() << "\t\t remaining method's extend past the of the section\n";
break;
}
memcpy(&method, methods + i * sizeof(struct objc_method_t),
sizeof(struct objc_method_t));
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(method);
outs() << "\t\t method_name "
<< format("0x%08" PRIx32, method.method_name);
if (info->verbose) {
name = get_pointer_32(method.method_name, offset, xleft, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", xleft, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t method_types "
<< format("0x%08" PRIx32, method.method_types);
if (info->verbose) {
name = get_pointer_32(method.method_types, offset, xleft, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", xleft, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t method_imp "
<< format("0x%08" PRIx32, method.method_imp) << " ";
if (info->verbose) {
SymbolName = GuessSymbolName(method.method_imp, info->AddrMap);
if (SymbolName != nullptr)
outs() << SymbolName;
}
outs() << "\n";
}
return false;
}
static void print_protocol_list64_t(uint64_t p, struct DisassembleInfo *info) {
struct protocol_list64_t pl;
uint64_t q, n_value;
@ -3511,6 +3775,196 @@ static void print_protocol_list32_t(uint32_t p, struct DisassembleInfo *info) {
}
}
static void print_indent(uint32_t indent) {
for (uint32_t i = 0; i < indent;) {
if (indent - i >= 8) {
outs() << "\t";
i += 8;
} else {
for (uint32_t j = i; j < indent; j++)
outs() << " ";
return;
}
}
}
static bool print_method_description_list(uint32_t p, uint32_t indent,
struct DisassembleInfo *info) {
uint32_t offset, left, xleft;
SectionRef S;
struct objc_method_description_list_t mdl;
struct objc_method_description_t md;
const char *r, *list, *name;
int32_t i;
r = get_pointer_32(p, offset, left, S, info, true);
if (r == nullptr)
return true;
outs() << "\n";
if (left > sizeof(struct objc_method_description_list_t)) {
memcpy(&mdl, r, sizeof(struct objc_method_description_list_t));
} else {
print_indent(indent);
outs() << " objc_method_description_list extends past end of the section\n";
memset(&mdl, '\0', sizeof(struct objc_method_description_list_t));
memcpy(&mdl, r, left);
}
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(mdl);
print_indent(indent);
outs() << " count " << mdl.count << "\n";
list = r + sizeof(struct objc_method_description_list_t);
for (i = 0; i < mdl.count; i++) {
if ((i + 1) * sizeof(struct objc_method_description_t) > left) {
print_indent(indent);
outs() << " remaining list entries extend past the of the section\n";
break;
}
print_indent(indent);
outs() << " list[" << i << "]\n";
memcpy(&md, list + i * sizeof(struct objc_method_description_t),
sizeof(struct objc_method_description_t));
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(md);
print_indent(indent);
outs() << " name " << format("0x%08" PRIx32, md.name);
if (info->verbose) {
name = get_pointer_32(md.name, offset, xleft, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", xleft, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
print_indent(indent);
outs() << " types " << format("0x%08" PRIx32, md.types);
if (info->verbose) {
name = get_pointer_32(md.types, offset, xleft, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", xleft, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
}
return false;
}
static bool print_protocol_list(uint32_t p, uint32_t indent,
struct DisassembleInfo *info);
static bool print_protocol(uint32_t p, uint32_t indent,
struct DisassembleInfo *info) {
uint32_t offset, left;
SectionRef S;
struct objc_protocol_t protocol;
const char *r, *name;
r = get_pointer_32(p, offset, left, S, info, true);
if (r == nullptr)
return true;
outs() << "\n";
if (left >= sizeof(struct objc_protocol_t)) {
memcpy(&protocol, r, sizeof(struct objc_protocol_t));
} else {
print_indent(indent);
outs() << " Protocol extends past end of the section\n";
memset(&protocol, '\0', sizeof(struct objc_protocol_t));
memcpy(&protocol, r, left);
}
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(protocol);
print_indent(indent);
outs() << " isa " << format("0x%08" PRIx32, protocol.isa)
<< "\n";
print_indent(indent);
outs() << " protocol_name "
<< format("0x%08" PRIx32, protocol.protocol_name);
if (info->verbose) {
name = get_pointer_32(protocol.protocol_name, offset, left, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", left, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
print_indent(indent);
outs() << " protocol_list "
<< format("0x%08" PRIx32, protocol.protocol_list);
if (print_protocol_list(protocol.protocol_list, indent + 4, info))
outs() << " (not in an __OBJC section)\n";
print_indent(indent);
outs() << " instance_methods "
<< format("0x%08" PRIx32, protocol.instance_methods);
if (print_method_description_list(protocol.instance_methods, indent, info))
outs() << " (not in an __OBJC section)\n";
print_indent(indent);
outs() << " class_methods "
<< format("0x%08" PRIx32, protocol.class_methods);
if (print_method_description_list(protocol.class_methods, indent, info))
outs() << " (not in an __OBJC section)\n";
return false;
}
static bool print_protocol_list(uint32_t p, uint32_t indent,
struct DisassembleInfo *info) {
uint32_t offset, left, l;
SectionRef S;
struct objc_protocol_list_t protocol_list;
const char *r, *list;
int32_t i;
r = get_pointer_32(p, offset, left, S, info, true);
if (r == nullptr)
return true;
outs() << "\n";
if (left > sizeof(struct objc_protocol_list_t)) {
memcpy(&protocol_list, r, sizeof(struct objc_protocol_list_t));
} else {
outs() << "\t\t objc_protocol_list_t extends past end of the section\n";
memset(&protocol_list, '\0', sizeof(struct objc_protocol_list_t));
memcpy(&protocol_list, r, left);
}
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(protocol_list);
print_indent(indent);
outs() << " next " << format("0x%08" PRIx32, protocol_list.next)
<< "\n";
print_indent(indent);
outs() << " count " << protocol_list.count << "\n";
list = r + sizeof(struct objc_protocol_list_t);
for (i = 0; i < protocol_list.count; i++) {
if ((i + 1) * sizeof(uint32_t) > left) {
outs() << "\t\t remaining list entries extend past the of the section\n";
break;
}
memcpy(&l, list + i * sizeof(uint32_t), sizeof(uint32_t));
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
sys::swapByteOrder(l);
print_indent(indent);
outs() << " list[" << i << "] " << format("0x%08" PRIx32, l);
if (print_protocol(l, indent, info))
outs() << "(not in an __OBJC section)\n";
}
return false;
}
static void print_ivar_list64_t(uint64_t p, struct DisassembleInfo *info) {
struct ivar_list64_t il;
struct ivar64_t i;
@ -4155,6 +4609,166 @@ static void print_class32_t(uint32_t p, struct DisassembleInfo *info) {
}
}
static void print_objc_class_t(struct objc_class_t *objc_class,
struct DisassembleInfo *info) {
uint32_t offset, left, xleft;
const char *name, *p, *ivar_list;
SectionRef S;
int32_t i;
struct objc_ivar_list_t objc_ivar_list;
struct objc_ivar_t ivar;
outs() << "\t\t isa " << format("0x%08" PRIx32, objc_class->isa);
if (info->verbose && CLS_GETINFO(objc_class, CLS_META)) {
name = get_pointer_32(objc_class->isa, offset, left, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", left, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t super_class "
<< format("0x%08" PRIx32, objc_class->super_class);
if (info->verbose) {
name = get_pointer_32(objc_class->super_class, offset, left, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", left, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t name " << format("0x%08" PRIx32, objc_class->name);
if (info->verbose) {
name = get_pointer_32(objc_class->name, offset, left, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", left, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t version " << format("0x%08" PRIx32, objc_class->version)
<< "\n";
outs() << "\t\t info " << format("0x%08" PRIx32, objc_class->info);
if (info->verbose) {
if (CLS_GETINFO(objc_class, CLS_CLASS))
outs() << " CLS_CLASS";
else if (CLS_GETINFO(objc_class, CLS_META))
outs() << " CLS_META";
}
outs() << "\n";
outs() << "\t instance_size "
<< format("0x%08" PRIx32, objc_class->instance_size) << "\n";
p = get_pointer_32(objc_class->ivars, offset, left, S, info, true);
outs() << "\t\t ivars " << format("0x%08" PRIx32, objc_class->ivars);
if (p != nullptr) {
if (left > sizeof(struct objc_ivar_list_t)) {
outs() << "\n";
memcpy(&objc_ivar_list, p, sizeof(struct objc_ivar_list_t));
} else {
outs() << " (entends past the end of the section)\n";
memset(&objc_ivar_list, '\0', sizeof(struct objc_ivar_list_t));
memcpy(&objc_ivar_list, p, left);
}
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(objc_ivar_list);
outs() << "\t\t ivar_count " << objc_ivar_list.ivar_count << "\n";
ivar_list = p + sizeof(struct objc_ivar_list_t);
for (i = 0; i < objc_ivar_list.ivar_count; i++) {
if ((i + 1) * sizeof(struct objc_ivar_t) > left) {
outs() << "\t\t remaining ivar's extend past the of the section\n";
break;
}
memcpy(&ivar, ivar_list + i * sizeof(struct objc_ivar_t),
sizeof(struct objc_ivar_t));
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(ivar);
outs() << "\t\t\tivar_name " << format("0x%08" PRIx32, ivar.ivar_name);
if (info->verbose) {
name = get_pointer_32(ivar.ivar_name, offset, xleft, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", xleft, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t\tivar_type " << format("0x%08" PRIx32, ivar.ivar_type);
if (info->verbose) {
name = get_pointer_32(ivar.ivar_type, offset, xleft, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", xleft, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t ivar_offset "
<< format("0x%08" PRIx32, ivar.ivar_offset) << "\n";
}
} else {
outs() << " (not in an __OBJC section)\n";
}
outs() << "\t\t methods " << format("0x%08" PRIx32, objc_class->methodLists);
if (print_method_list(objc_class->methodLists, info))
outs() << " (not in an __OBJC section)\n";
outs() << "\t\t cache " << format("0x%08" PRIx32, objc_class->cache)
<< "\n";
outs() << "\t\tprotocols " << format("0x%08" PRIx32, objc_class->protocols);
if (print_protocol_list(objc_class->protocols, 16, info))
outs() << " (not in an __OBJC section)\n";
}
static void print_objc_objc_category_t(struct objc_category_t *objc_category,
struct DisassembleInfo *info) {
uint32_t offset, left;
const char *name;
SectionRef S;
outs() << "\t category name "
<< format("0x%08" PRIx32, objc_category->category_name);
if (info->verbose) {
name = get_pointer_32(objc_category->category_name, offset, left, S, info,
true);
if (name != nullptr)
outs() << format(" %.*s", left, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t\t class name "
<< format("0x%08" PRIx32, objc_category->class_name);
if (info->verbose) {
name =
get_pointer_32(objc_category->class_name, offset, left, S, info, true);
if (name != nullptr)
outs() << format(" %.*s", left, name);
else
outs() << " (not in an __OBJC section)";
}
outs() << "\n";
outs() << "\t instance methods "
<< format("0x%08" PRIx32, objc_category->instance_methods);
if (print_method_list(objc_category->instance_methods, info))
outs() << " (not in an __OBJC section)\n";
outs() << "\t class methods "
<< format("0x%08" PRIx32, objc_category->class_methods);
if (print_method_list(objc_category->class_methods, info))
outs() << " (not in an __OBJC section)\n";
}
static void print_category64_t(uint64_t p, struct DisassembleInfo *info) {
struct category64_t c;
const char *r;
@ -4513,6 +5127,41 @@ static void print_image_info32(SectionRef S, struct DisassembleInfo *info) {
outs() << "\n";
}
static void print_image_info(SectionRef S, struct DisassembleInfo *info) {
uint32_t left, offset, p;
struct imageInfo_t o;
const char *r;
StringRef SectName;
S.getName(SectName);
DataRefImpl Ref = S.getRawDataRefImpl();
StringRef SegName = info->O->getSectionFinalSegmentName(Ref);
outs() << "Contents of (" << SegName << "," << SectName << ") section\n";
p = S.getAddress();
r = get_pointer_32(p, offset, left, S, info);
if (r == nullptr)
return;
memset(&o, '\0', sizeof(struct imageInfo_t));
if (left < sizeof(struct imageInfo_t)) {
memcpy(&o, r, left);
outs() << " (imageInfo entends past the end of the section)\n";
} else
memcpy(&o, r, sizeof(struct imageInfo_t));
if (info->O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(o);
outs() << " version " << o.version << "\n";
outs() << " flags " << format("0x%" PRIx32, o.flags);
if (o.flags & 0x1)
outs() << " F&C";
if (o.flags & 0x2)
outs() << " GC";
if (o.flags & 0x4)
outs() << " GC-only";
else
outs() << " RR";
outs() << "\n";
}
static void printObjc2_64bit_MetaData(MachOObjectFile *O, bool verbose) {
SymbolAddressMap AddrMap;
if (verbose)
@ -4711,13 +5360,189 @@ static void printObjc2_32bit_MetaData(MachOObjectFile *O, bool verbose) {
}
static bool printObjc1_32bit_MetaData(MachOObjectFile *O, bool verbose) {
uint32_t i, j, p, offset, xoffset, left, defs_left, def;
const char *r, *name, *defs;
struct objc_module_t module;
SectionRef S, xS;
struct objc_symtab_t symtab;
struct objc_class_t objc_class;
struct objc_category_t objc_category;
outs() << "Objective-C segment\n";
const SectionRef S = get_section(O, "__OBJC", "__module_info");
if (S != SectionRef()) {
outs() << "Printing Objc1 32-bit MetaData not yet supported\n";
return true;
S = get_section(O, "__OBJC", "__module_info");
if (S == SectionRef())
return false;
SymbolAddressMap AddrMap;
if (verbose)
CreateSymbolAddressMap(O, &AddrMap);
std::vector<SectionRef> Sections;
for (const SectionRef &Section : O->sections()) {
StringRef SectName;
Section.getName(SectName);
Sections.push_back(Section);
}
return false;
struct DisassembleInfo info;
// Set up the block of info used by the Symbolizer call backs.
info.verbose = verbose;
info.O = O;
info.AddrMap = &AddrMap;
info.Sections = &Sections;
info.class_name = nullptr;
info.selector_name = nullptr;
info.method = nullptr;
info.demangled_name = nullptr;
info.bindtable = nullptr;
info.adrp_addr = 0;
info.adrp_inst = 0;
for (i = 0; i < S.getSize(); i += sizeof(struct objc_module_t)) {
p = S.getAddress() + i;
r = get_pointer_32(p, offset, left, S, &info, true);
if (r == nullptr)
return true;
memset(&module, '\0', sizeof(struct objc_module_t));
if (left < sizeof(struct objc_module_t)) {
memcpy(&module, r, left);
outs() << " (module extends past end of __module_info section)\n";
} else
memcpy(&module, r, sizeof(struct objc_module_t));
if (O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(module);
outs() << "Module " << format("0x%" PRIx32, p) << "\n";
outs() << " version " << module.version << "\n";
outs() << " size " << module.size << "\n";
outs() << " name ";
name = get_pointer_32(module.name, xoffset, left, xS, &info, true);
if (name != nullptr)
outs() << format("%.*s", left, name);
else
outs() << format("0x%08" PRIx32, module.name)
<< "(not in an __OBJC section)";
outs() << "\n";
r = get_pointer_32(module.symtab, xoffset, left, xS, &info, true);
if (module.symtab == 0 || r == nullptr) {
outs() << " symtab " << format("0x%08" PRIx32, module.symtab)
<< " (not in an __OBJC section)\n";
continue;
}
outs() << " symtab " << format("0x%08" PRIx32, module.symtab) << "\n";
memset(&symtab, '\0', sizeof(struct objc_symtab_t));
defs_left = 0;
defs = nullptr;
if (left < sizeof(struct objc_symtab_t)) {
memcpy(&symtab, r, left);
outs() << "\tsymtab extends past end of an __OBJC section)\n";
} else {
memcpy(&symtab, r, sizeof(struct objc_symtab_t));
if (left > sizeof(struct objc_symtab_t)) {
defs_left = left - sizeof(struct objc_symtab_t);
defs = r + sizeof(struct objc_symtab_t);
}
}
if (O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(symtab);
outs() << "\tsel_ref_cnt " << symtab.sel_ref_cnt << "\n";
r = get_pointer_32(symtab.refs, xoffset, left, xS, &info, true);
outs() << "\trefs " << format("0x%08" PRIx32, symtab.refs);
if (r == nullptr)
outs() << " (not in an __OBJC section)";
outs() << "\n";
outs() << "\tcls_def_cnt " << symtab.cls_def_cnt << "\n";
outs() << "\tcat_def_cnt " << symtab.cat_def_cnt << "\n";
if (symtab.cls_def_cnt > 0)
outs() << "\tClass Definitions\n";
for (j = 0; j < symtab.cls_def_cnt; j++) {
if ((j + 1) * sizeof(uint32_t) > defs_left) {
outs() << "\t(remaining class defs entries entends past the end of the "
<< "section)\n";
break;
}
memcpy(&def, defs + j * sizeof(uint32_t), sizeof(uint32_t));
if (O->isLittleEndian() != sys::IsLittleEndianHost)
sys::swapByteOrder(def);
r = get_pointer_32(def, xoffset, left, xS, &info, true);
outs() << "\tdefs[" << j << "] " << format("0x%08" PRIx32, def);
if (r != nullptr) {
if (left > sizeof(struct objc_class_t)) {
outs() << "\n";
memcpy(&objc_class, r, sizeof(struct objc_class_t));
} else {
outs() << " (entends past the end of the section)\n";
memset(&objc_class, '\0', sizeof(struct objc_class_t));
memcpy(&objc_class, r, left);
}
if (O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(objc_class);
print_objc_class_t(&objc_class, &info);
} else {
outs() << "(not in an __OBJC section)\n";
}
if (CLS_GETINFO(&objc_class, CLS_CLASS)) {
outs() << "\tMeta Class";
r = get_pointer_32(objc_class.isa, xoffset, left, xS, &info, true);
if (r != nullptr) {
if (left > sizeof(struct objc_class_t)) {
outs() << "\n";
memcpy(&objc_class, r, sizeof(struct objc_class_t));
} else {
outs() << " (entends past the end of the section)\n";
memset(&objc_class, '\0', sizeof(struct objc_class_t));
memcpy(&objc_class, r, left);
}
if (O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(objc_class);
print_objc_class_t(&objc_class, &info);
} else {
outs() << "(not in an __OBJC section)\n";
}
}
}
if (symtab.cat_def_cnt > 0)
outs() << "\tCategory Definitions\n";
for (j = 0; j < symtab.cat_def_cnt; j++) {
if ((j + symtab.cls_def_cnt + 1) * sizeof(uint32_t) > defs_left) {
outs() << "\t(remaining category defs entries entends past the end of "
<< "the section)\n";
break;
}
memcpy(&def, defs + (j + symtab.cls_def_cnt) * sizeof(uint32_t),
sizeof(uint32_t));
if (O->isLittleEndian() != sys::IsLittleEndianHost)
sys::swapByteOrder(def);
r = get_pointer_32(def, xoffset, left, xS, &info, true);
outs() << "\tdefs[" << j + symtab.cls_def_cnt << "] "
<< format("0x%08" PRIx32, def);
if (r != nullptr) {
if (left > sizeof(struct objc_category_t)) {
outs() << "\n";
memcpy(&objc_category, r, sizeof(struct objc_category_t));
} else {
outs() << " (entends past the end of the section)\n";
memset(&objc_category, '\0', sizeof(struct objc_category_t));
memcpy(&objc_category, r, left);
}
if (O->isLittleEndian() != sys::IsLittleEndianHost)
swapStruct(objc_category);
print_objc_objc_category_t(&objc_category, &info);
} else {
outs() << "(not in an __OBJC section)\n";
}
}
}
const SectionRef II = get_section(O, "__OBJC", "__image_info");
if (II != SectionRef())
print_image_info(II, &info);
return true;
}
static void printObjcMetaData(MachOObjectFile *O, bool verbose) {