## 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 ...