lld/test/MachO/linkedit-contiguity.s

   1 # REQUIRES: x86
   2 # RUN: rm -rf %t; split-file %s %t
   3
   4 ## codesign requires that each section in __LINKEDIT ends where the next one
   5 ## starts and that they follow a certain order. This test enforces that invariant.
   6 ## It also checks that the last section in __LINKEDIT covers the last byte of
   7 ## the segment.
   8
   9 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/foo.s -o %t/foo.o
  10 # RUN: %lld %t/foo.o -dylib -o %t/libfoo.dylib
  11
  12 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %t/test.s -o %t/test.o
  13
  14 # RUN: %lld -lSystem -adhoc_codesign -o %t/test %t/libfoo.dylib %t/test.o
  15 # RUN: llvm-objdump --macho --all-headers %t/test | FileCheck --check-prefixes=CHECK,OPCODE %s
  16
  17 # RUN: %lld -lSystem -adhoc_codesign -fixup_chains -o %t/chained_test %t/libfoo.dylib %t/test.o
  18 # RUN: llvm-objdump --macho --all-headers %t/chained_test | FileCheck --check-prefixes=CHECK,CHAINED %s
  19
  20 # CHECK:      segname __LINKEDIT
  21 # CHECK-NEXT: vmaddr
  22 # CHECK-NEXT: vmsize
  23 # CHECK-NEXT: fileoff [[#LINKEDIT_OFF:]]
  24 # CHECK-NEXT: filesize [[#LINKEDIT_SIZE:]]
  25
  26 # OPCODE:      cmd LC_DYLD_INFO_ONLY
  27 # OPCODE-NEXT: cmdsize 48
  28 # OPCODE-NEXT: rebase_off [[#REBASE_OFF:]]
  29 # OPCODE-NEXT: rebase_size [[#REBASE_SIZE:]]
  30 # OPCODE-NEXT: bind_off [[#BIND_OFF: REBASE_OFF + REBASE_SIZE]]
  31 # OPCODE-NEXT: bind_size [[#BIND_SIZE:]]
  32 # OPCODE-NEXT: weak_bind_off [[#WEAK_OFF: BIND_OFF + BIND_SIZE]]
  33 # OPCODE-NEXT: weak_bind_size [[#WEAK_SIZE:]]
  34 # OPCODE-NEXT: lazy_bind_off [[#LAZY_OFF: WEAK_OFF + WEAK_SIZE]]
  35 # OPCODE-NEXT: lazy_bind_size [[#LAZY_SIZE:]]
  36 # OPCODE-NEXT: export_off [[#EXPORT_OFF: LAZY_OFF + LAZY_SIZE]]
  37 # OPCODE-NEXT: export_size [[#EXPORT_SIZE:]]
  38
  39 # CHAINED:      cmd LC_DYLD_CHAINED_FIXUPS
  40 # CHAINED-NEXT: cmdsize
  41 # CHAINED-NEXT: dataoff [[#FIXUPS_OFF: LINKEDIT_OFF]]
  42 # CHAINED-NEXT: datasize [[#FIXUPS_SIZE:]]
  43
  44 # CHAINED:      cmd LC_DYLD_EXPORTS_TRIE
  45 # CHAINED-NEXT: cmdsize
  46 # CHAINED-NEXT: dataoff [[#EXPORT_OFF: FIXUPS_OFF + FIXUPS_SIZE]]
  47 # CHAINED-NEXT: datasize [[#EXPORT_SIZE:]]
  48
  49 # CHECK:      cmd LC_FUNCTION_STARTS
  50 # CHECK-NEXT: cmdsize
  51 # CHECK-NEXT: dataoff [[#FUNCSTARTS_OFF: EXPORT_OFF + EXPORT_SIZE]]
  52 # CHECK-NEXT: datasize [[#FUNCSTARTS_SIZE:]]
  53
  54 # CHECK:      cmd LC_DATA_IN_CODE
  55 # CHECK-NEXT: cmdsize
  56 # CHECK-NEXT: dataoff [[#DIC_OFF: FUNCSTARTS_OFF + FUNCSTARTS_SIZE]]
  57
  58 # CHECK:      cmd LC_CODE_SIGNATURE
  59 # CHECK-NEXT: cmdsize 16
  60 # CHECK-NEXT: dataoff [[#SIG_OFF:]]
  61 # CHECK-NEXT: datasize [[#SIG_SIZE: LINKEDIT_OFF + LINKEDIT_SIZE - SIG_OFF]]
  62
  63 #--- foo.s
  64 .globl _foo, _weak_foo
  65 .weak_definition _weak_foo
  66 _foo:
  67 _weak_foo:
  68
  69 #--- test.s
  70 .globl _main
  71 _main:
  72   callq _foo
  73   callq _weak_foo
  74   ret
  75
  76 .p2align 2, 0x90
  77 .data_region jt32
  78 .long 0
  79 .end_data_region