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|
## This test verifies that the linkedit segment is
## laid out in the right order.
# RUN: yaml2obj %s -o %t.original
# RUN: llvm-objcopy %t.original %t.copy
# RUN: obj2yaml %t.copy > %t.yaml
## Print the results several times in order to capture the linkedit offsets
## in the order they are needed, but still following the order of the load
## commands where they appear.
# RUN: cat %t.yaml %t.yaml %t.yaml | FileCheck %s
# CHECK: cmd: LC_SEGMENT_64
# CHECK: segname: __LINKEDIT
# CHECK: fileoff: [[#LINKEDIT_FILEOFF:]]
# CHECK: filesize: [[#LINKEDIT_FILESIZE:]]
# CHECK: cmd: LC_DYLD_CHAINED_FIXUPS
# CHECK: dataoff: [[#CHAINED_FIXUPS_FILEOFF: LINKEDIT_FILEOFF]]
# CHECK: datasize: [[#CHAINED_FIXUPS_FILESIZE:]]
# CHECK: cmd: LC_DYLD_EXPORTS_TRIE
# CHECK: dataoff: [[#DYLD_EXPORTS_TRIE_FILEOFF: CHAINED_FIXUPS_FILEOFF + CHAINED_FIXUPS_FILESIZE]]
# CHECK: datasize: [[#DYLD_EXPORTS_TRIE_FILESIZE:]]
## Jump over LC_SYMTAB and LC_DYSYMTAB, which will be checked during
## later.
# CHECK: cmd: LC_FUNCTION_STARTS
# CHECK: dataoff: [[#FUNCTION_STARTS_FILEOFF: DYLD_EXPORTS_TRIE_FILEOFF + DYLD_EXPORTS_TRIE_FILESIZE]]
# CHECK: datasize: [[#FUNCTION_STARTS_FILESIZE:]]
# CHECK: cmd: LC_DATA_IN_CODE
# CHECK: dataoff: [[#DATA_IN_CODE_FILEOFF: FUNCTION_STARTS_FILEOFF + FUNCTION_STARTS_FILESIZE]]
# CHECK: datasize: [[#DATA_IN_CODE_FILESIZE:]]
## Jump over LC_CODE_SIGNATURE, which needs to be checked last
# CHECK: --- !mach-o
# CHECK: cmd: LC_SYMTAB
# CHECK: symoff: [[#SYMTAB_SYMOFF: DATA_IN_CODE_FILEOFF + DATA_IN_CODE_FILESIZE]]
# CHECK: nsyms: [[#SYMTAB_NSYMS:]]
## Skip over the strings table offset/size (part of LC_SYMTAB) until next loop.
# CHECK: cmd: LC_DYSYMTAB
# CHECK: indirectsymoff: [[#DYSYMTAB_INDIRECTSYMOFF: SYMTAB_SYMOFF + mul(SYMTAB_NSYMS, 16)]]
# CHECK: nindirectsyms: [[#DYSYMTAB_NINDIRECTSYMS:]]
# CHECK: --- !mach-o
# CHECK: cmd: LC_SYMTAB
# CHECK: stroff: [[#SYMTAB_STROFF: DYSYMTAB_INDIRECTSYMOFF + mul(DYSYMTAB_NINDIRECTSYMS, 4)]]
# CHECK: strsize: [[#SYMTAB_STRSIZE:]]
# CHECK: cmd: LC_CODE_SIGNATURE
## LC_CODE_SIGNATURE needs to be aligned to 16 bytes boundaries.
# CHECK: dataoff: [[#CODE_SIGNATURE_FILEOFF: mul(div(SYMTAB_STROFF + SYMTAB_STRSIZE + 8, 16), 16)]]
# CHECK: datasize: [[#CODE_SIGNATURE_FILESIZE:LINKEDIT_FILEOFF + LINKEDIT_FILESIZE - CODE_SIGNATURE_FILEOFF]]
--- !mach-o
FileHeader:
magic: 0xFEEDFACF
cputype: 0x1000007
cpusubtype: 0x3
filetype: 0x2
ncmds: 18
sizeofcmds: 1032
flags: 0x210085
reserved: 0x0
LoadCommands:
- cmd: LC_SEGMENT_64
cmdsize: 72
segname: __PAGEZERO
vmaddr: 0
vmsize: 4294967296
fileoff: 0
filesize: 0
maxprot: 0
initprot: 0
nsects: 0
flags: 0
- cmd: LC_SEGMENT_64
cmdsize: 312
segname: __TEXT
vmaddr: 4294967296
vmsize: 16384
fileoff: 0
filesize: 16384
maxprot: 5
initprot: 5
nsects: 3
flags: 0
Sections:
- sectname: __text
segname: __TEXT
addr: 0x100003F9C
size: 16
offset: 0x3F9C
align: 2
reloff: 0x0
nreloc: 0
flags: 0x80000400
reserved1: 0x0
reserved2: 0x0
reserved3: 0x0
content: E80B000000E80C000000C39000000000
- sectname: __stubs
segname: __TEXT
addr: 0x100003FAC
size: 12
offset: 0x3FAC
align: 1
reloff: 0x0
nreloc: 0
flags: 0x80000408
reserved1: 0x0
reserved2: 0x6
reserved3: 0x0
content: FF254E000000FF2550000000
- sectname: __unwind_info
segname: __TEXT
addr: 0x100003FB8
size: 72
offset: 0x3FB8
align: 2
reloff: 0x0
nreloc: 0
flags: 0x0
reserved1: 0x0
reserved2: 0x0
reserved3: 0x0
content: 010000001C000000000000001C000000000000001C000000020000009C3F00003400000034000000AD3F00000000000034000000030000000C000100100001000000000000000000
- cmd: LC_SEGMENT_64
cmdsize: 152
segname: __DATA_CONST
vmaddr: 4294983680
vmsize: 16384
fileoff: 16384
filesize: 16384
maxprot: 3
initprot: 3
nsects: 1
flags: 16
Sections:
- sectname: __got
segname: __DATA_CONST
addr: 0x100004000
size: 16
offset: 0x4000
align: 3
reloff: 0x0
nreloc: 0
flags: 0x6
reserved1: 0x2
reserved2: 0x0
reserved3: 0x0
content: '00000000000010800100000000000080'
- cmd: LC_SEGMENT_64
cmdsize: 72
segname: __LINKEDIT
vmaddr: 4295000064
vmsize: 16384
fileoff: 32768
filesize: 719
maxprot: 1
initprot: 1
nsects: 0
flags: 0
- cmd: LC_DYLD_CHAINED_FIXUPS
cmdsize: 16
dataoff: 32768
datasize: 104
- cmd: LC_DYLD_EXPORTS_TRIE
cmdsize: 16
dataoff: 32872
datasize: 48
- cmd: LC_SYMTAB
cmdsize: 24
symoff: 32936
nsyms: 4
stroff: 33016
strsize: 48
- cmd: LC_DYSYMTAB
cmdsize: 80
ilocalsym: 0
nlocalsym: 0
iextdefsym: 0
nextdefsym: 2
iundefsym: 2
nundefsym: 2
tocoff: 0
ntoc: 0
modtaboff: 0
nmodtab: 0
extrefsymoff: 0
nextrefsyms: 0
indirectsymoff: 33000
nindirectsyms: 4
extreloff: 0
nextrel: 0
locreloff: 0
nlocrel: 0
- cmd: LC_LOAD_DYLINKER
cmdsize: 32
name: 12
Content: '/usr/lib/dyld'
ZeroPadBytes: 7
- cmd: LC_UUID
cmdsize: 24
uuid: F74FD957-51B1-3D8E-AE70-D8A248BB5D93
- cmd: LC_BUILD_VERSION
cmdsize: 32
platform: 1
minos: 786432
sdk: 787200
ntools: 1
Tools:
- tool: 3
version: 50069504
- cmd: LC_SOURCE_VERSION
cmdsize: 16
version: 0
- cmd: LC_MAIN
cmdsize: 24
entryoff: 16284
stacksize: 0
- cmd: LC_LOAD_DYLIB
cmdsize: 56
dylib:
name: 24
timestamp: 2
current_version: 0
compatibility_version: 0
Content: libFoo-chained-fixups.dylib
ZeroPadBytes: 5
- cmd: LC_LOAD_DYLIB
cmdsize: 56
dylib:
name: 24
timestamp: 2
current_version: 85943299
compatibility_version: 65536
Content: '/usr/lib/libSystem.B.dylib'
ZeroPadBytes: 6
- cmd: LC_FUNCTION_STARTS
cmdsize: 16
dataoff: 32920
datasize: 8
- cmd: LC_DATA_IN_CODE
cmdsize: 16
dataoff: 32928
datasize: 8
- cmd: LC_CODE_SIGNATURE
cmdsize: 16
dataoff: 33072
datasize: 415
LinkEditData:
ExportTrie:
TerminalSize: 0
NodeOffset: 0
Name: ''
Flags: 0x0
Address: 0x0
Other: 0x0
ImportName: ''
Children:
- TerminalSize: 0
NodeOffset: 5
Name: _
Flags: 0x0
Address: 0x0
Other: 0x0
ImportName: ''
Children:
- TerminalSize: 2
NodeOffset: 33
Name: _mh_execute_header
Flags: 0x0
Address: 0x0
Other: 0x0
ImportName: ''
- TerminalSize: 3
NodeOffset: 37
Name: main
Flags: 0x0
Address: 0x3F9C
Other: 0x0
ImportName: ''
NameList:
- n_strx: 2
n_type: 0xF
n_sect: 1
n_desc: 16
n_value: 4294967296
- n_strx: 22
n_type: 0xF
n_sect: 1
n_desc: 0
n_value: 4294983580
- n_strx: 28
n_type: 0x1
n_sect: 0
n_desc: 256
n_value: 0
- n_strx: 33
n_type: 0x1
n_sect: 0
n_desc: 384
n_value: 0
StringTable:
- ' '
- __mh_execute_header
- _main
- _foo
- _weak_foo
- ''
- ''
- ''
- ''
- ''
IndirectSymbols: [ 0x2, 0x3, 0x2, 0x3 ]
FunctionStarts: [ 0x3F9C ]
ChainedFixups: [ 0x0, 0x0, 0x0, 0x0, 0x20, 0x0, 0x0, 0x0, 0x50, 0x0,
0x0, 0x0, 0x58, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0,
0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x18, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x18, 0x0, 0x0, 0x0,
0x0, 0x10, 0x6, 0x0, 0x0, 0x40, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0,
0x1, 0x2, 0x0, 0x0, 0xFD, 0xC, 0x0, 0x0, 0x0, 0x5F,
0x66, 0x6F, 0x6F, 0x0, 0x5F, 0x77, 0x65, 0x61, 0x6B,
0x5F, 0x66, 0x6F, 0x6F, 0x0 ]
DataInCode:
- Offset: 0x3FA8
Length: 4
Kind: 0x4
...
|
