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