| ## This file contains test cases for generating sections in Mach-O object files. |
| |
| ## a) Test that yaml2obj emits sections and obj2yaml converts them back. |
| |
| # RUN: yaml2obj --docnum=1 %s | obj2yaml | FileCheck %s |
| |
| --- !mach-o |
| FileHeader: |
| magic: 0xFEEDFACF |
| cputype: 0x01000007 |
| cpusubtype: 0x80000003 |
| filetype: 0x00000002 |
| ncmds: 16 |
| sizeofcmds: 1408 |
| flags: 0x00218085 |
| reserved: 0x00000000 |
| 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: 552 |
| segname: __TEXT |
| vmaddr: 4294967296 |
| vmsize: 8192 |
| fileoff: 0 |
| filesize: 8192 |
| maxprot: 7 |
| initprot: 5 |
| nsects: 6 |
| flags: 0 |
| Sections: |
| - sectname: __text |
| segname: __TEXT |
| addr: 0x0000000100001160 |
| size: 3099 |
| offset: 0x00001160 |
| align: 4 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x80000400 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __stubs |
| segname: __TEXT |
| addr: 0x0000000100001D7C |
| size: 90 |
| offset: 0x00001D7C |
| align: 1 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x80000408 |
| reserved1: 0x00000000 |
| reserved2: 0x00000006 |
| reserved3: 0x00000000 |
| - sectname: __stub_helper |
| segname: __TEXT |
| addr: 0x0000000100001DD8 |
| size: 166 |
| offset: 0x00001DD8 |
| align: 2 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x80000400 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __gcc_except_tab |
| segname: __TEXT |
| addr: 0x0000000100001E80 |
| size: 240 |
| offset: 0x00001E80 |
| align: 2 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000000 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __cstring |
| segname: __TEXT |
| addr: 0x0000000100001F70 |
| size: 15 |
| offset: 0x00001F70 |
| align: 0 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000002 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __unwind_info |
| segname: __TEXT |
| addr: 0x0000000100001F80 |
| size: 120 |
| offset: 0x00001F80 |
| align: 2 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000000 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - cmd: LC_SEGMENT_64 |
| cmdsize: 312 |
| segname: __DATA |
| vmaddr: 4294975488 |
| vmsize: 4096 |
| fileoff: 8192 |
| filesize: 4096 |
| maxprot: 7 |
| initprot: 3 |
| nsects: 3 |
| flags: 0 |
| Sections: |
| - sectname: __got |
| segname: __DATA |
| addr: 0x0000000100002000 |
| size: 24 |
| offset: 0x00002000 |
| align: 3 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000006 |
| reserved1: 0x0000000F |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __nl_symbol_ptr |
| segname: __DATA |
| addr: 0x0000000100002018 |
| size: 16 |
| offset: 0x00002018 |
| align: 3 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000006 |
| reserved1: 0x00000012 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __la_symbol_ptr |
| segname: __DATA |
| addr: 0x0000000100002028 |
| size: 120 |
| offset: 0x00002028 |
| align: 3 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000007 |
| reserved1: 0x00000014 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - cmd: LC_SEGMENT_64 |
| cmdsize: 72 |
| segname: __LINKEDIT |
| vmaddr: 4294979584 |
| vmsize: 4096 |
| fileoff: 12288 |
| filesize: 2508 |
| maxprot: 7 |
| initprot: 1 |
| nsects: 0 |
| flags: 0 |
| - cmd: LC_DYLD_INFO_ONLY |
| cmdsize: 48 |
| rebase_off: 12288 |
| rebase_size: 8 |
| bind_off: 12296 |
| bind_size: 96 |
| weak_bind_off: 0 |
| weak_bind_size: 0 |
| lazy_bind_off: 12392 |
| lazy_bind_size: 624 |
| export_off: 13016 |
| export_size: 48 |
| - cmd: LC_SYMTAB |
| cmdsize: 24 |
| symoff: 13080 |
| nsyms: 30 |
| stroff: 13700 |
| strsize: 1096 |
| - cmd: LC_DYSYMTAB |
| cmdsize: 80 |
| ilocalsym: 0 |
| nlocalsym: 9 |
| iextdefsym: 9 |
| nextdefsym: 2 |
| iundefsym: 11 |
| nundefsym: 19 |
| tocoff: 0 |
| ntoc: 0 |
| modtaboff: 0 |
| nmodtab: 0 |
| extrefsymoff: 0 |
| nextrefsyms: 0 |
| indirectsymoff: 13560 |
| nindirectsyms: 35 |
| extreloff: 0 |
| nextrel: 0 |
| locreloff: 0 |
| nlocrel: 0 |
| - cmd: LC_LOAD_DYLINKER |
| cmdsize: 32 |
| name: 12 |
| - cmd: LC_UUID |
| cmdsize: 24 |
| uuid: 461A1B28-822F-3F38-B670-645419E636F5 |
| - cmd: LC_VERSION_MIN_MACOSX |
| cmdsize: 16 |
| version: 658176 |
| sdk: 658176 |
| - cmd: LC_SOURCE_VERSION |
| cmdsize: 16 |
| version: 0 |
| - cmd: LC_MAIN |
| cmdsize: 24 |
| entryoff: 4448 |
| stacksize: 0 |
| - cmd: LC_LOAD_DYLIB |
| cmdsize: 48 |
| dylib: |
| name: 24 |
| timestamp: 2 |
| current_version: 7864576 |
| compatibility_version: 65536 |
| - cmd: LC_LOAD_DYLIB |
| cmdsize: 56 |
| dylib: |
| name: 24 |
| timestamp: 2 |
| current_version: 80349697 |
| compatibility_version: 65536 |
| - cmd: LC_FUNCTION_STARTS |
| cmdsize: 16 |
| dataoff: 13064 |
| datasize: 16 |
| - cmd: LC_DATA_IN_CODE |
| cmdsize: 16 |
| dataoff: 13080 |
| datasize: 0 |
| ... |
| |
| |
| #CHECK: - cmd: LC_SEGMENT_64 |
| #CHECK: segname: __PAGEZERO |
| #CHECK: - cmd: LC_SEGMENT_64 |
| #CHECK: segname: __TEXT |
| #CHECK: Sections: |
| #CHECK: - sectname: __text |
| #CHECK: segname: __TEXT |
| #CHECK: addr: 0x100001160 |
| #CHECK: size: 3099 |
| #CHECK: offset: 0x1160 |
| #CHECK: align: 4 |
| #CHECK: reloff: 0x0 |
| #CHECK: nreloc: 0 |
| #CHECK: flags: 0x80000400 |
| #CHECK: reserved1: 0x0 |
| #CHECK: reserved2: 0x0 |
| #CHECK: reserved3: 0x0 |
| #CHECK: - sectname: __stubs |
| #CHECK: segname: __TEXT |
| #CHECK: - sectname: __stub_helper |
| #CHECK: segname: __TEXT |
| #CHECK: - sectname: __gcc_except_tab |
| #CHECK: segname: __TEXT |
| #CHECK: - sectname: __cstring |
| #CHECK: segname: __TEXT |
| #CHECK: - sectname: __unwind_info |
| #CHECK: segname: __TEXT |
| #CHECK: - cmd: LC_SEGMENT_64 |
| #CHECK: segname: __DATA |
| #CHECK: Sections: |
| #CHECK: - sectname: __got |
| #CHECK: segname: __DATA |
| #CHECK: - sectname: __nl_symbol_ptr |
| #CHECK: segname: __DATA |
| #CHECK: - sectname: __la_symbol_ptr |
| #CHECK: segname: __DATA |
| |
| ## b) Test that yaml2obj emits an error message if we specify an offset that |
| ## makes the current section and the previous one overlap. |
| |
| # RUN: not yaml2obj --docnum=2 %s -o %t2.macho 2>&1 | FileCheck %s --check-prefix=OVERLAP |
| |
| # OVERLAP: yaml2obj: error: wrote too much data somewhere, section offsets in section __sec2 for segment __SEC don't line up: [cursor=0x121], [fileStart=0x0], [sectionOffset=0x1] |
| |
| --- !mach-o |
| FileHeader: |
| magic: 0xFEEDFACF |
| cputype: 0x01000007 |
| cpusubtype: 0x80000003 |
| filetype: 0x00000002 |
| ncmds: 1 |
| sizeofcmds: 1024 |
| flags: 0x00000000 |
| reserved: 0x00000000 |
| LoadCommands: |
| - cmd: LC_SEGMENT_64 |
| cmdsize: 0xff |
| segname: __SEC |
| vmaddr: 0 |
| vmsize: 0 |
| fileoff: 0 |
| filesize: 0 |
| maxprot: 0 |
| initprot: 0 |
| nsects: 2 |
| flags: 0 |
| Sections: |
| - sectname: __sec1 |
| segname: __SEC |
| addr: 0x0000000000000000 |
| size: 2 |
| offset: 0x00000000 |
| align: 0 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000000 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
| - sectname: __sec2 |
| segname: __SEC |
| addr: 0x0000000000000000 |
| size: 2 |
| offset: 0x00000001 ## Specify an offset that makes __sec1 and __sec2 overlap. |
| align: 1 |
| reloff: 0x00000000 |
| nreloc: 0 |
| flags: 0x00000000 |
| reserved1: 0x00000000 |
| reserved2: 0x00000000 |
| reserved3: 0x00000000 |
