lld/test/MachO/segments.s

   1 # REQUIRES: x86, aarch64
   2 # RUN: rm -rf %t; mkdir -p %t
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t/x86_64.o
   4 # RUN: llvm-mc -filetype=obj -triple=arm64_32-apple-watchos %s -o %t/arm64-32.o
   5 # RUN: %lld -o %t/x86_64 %t/x86_64.o
   6 # RUN: %lld-watchos -o %t/arm64_32 %t/arm64-32.o
   7
   8 # RUN: llvm-readobj --macho-segment %t/x86_64 > %t/x86_64.out
   9 # RUN: echo "Total file size" >> %t/x86_64.out
  10 # RUN: wc -c %t/x86_64 >> %t/x86_64.out
  11 # RUN: FileCheck %s -DSUFFIX=_64 -DPAGEZERO_SIZE=0x100000000 -DTEXT_ADDR=0x100000000 < %t/x86_64.out
  12
  13 # RUN: llvm-readobj --macho-segment %t/arm64_32 > %t/arm64-32.out
  14 # RUN: echo "Total file size" >> %t/arm64-32.out
  15 # RUN: wc -c %t/arm64_32 >> %t/arm64-32.out
  16 # RUN: FileCheck %s -DSUFFIX= -DPAGEZERO_SIZE=0x4000 -DTEXT_ADDR=0x4000 < %t/arm64-32.out
  17
  18 ## These two segments must always be present at the start of an executable.
  19 # CHECK-NOT:  Segment {
  20 # CHECK:      Segment {
  21 # CHECK-NEXT:   Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
  22 # CHECK-NEXT:   Name: __PAGEZERO
  23 # CHECK-NEXT:   Size:
  24 # CHECK-NEXT:   vmaddr: 0x0
  25 # CHECK-NEXT:   vmsize: [[PAGEZERO_SIZE]]
  26 # CHECK-NEXT:   fileoff: 0
  27 # CHECK-NEXT:   filesize: 0
  28 ## The kernel won't execute a binary with the wrong protections for __PAGEZERO.
  29 # CHECK-NEXT:   maxprot: ---
  30 # CHECK-NEXT:   initprot: ---
  31 # CHECK-NEXT:   nsects: 0
  32 # CHECK-NEXT:   flags: 0x0
  33 # CHECK-NEXT: }
  34 # CHECK-NEXT: Segment {
  35 # CHECK-NEXT:   Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
  36 # CHECK-NEXT:   Name: __TEXT
  37 # CHECK-NEXT:   Size:
  38 # CHECK-NEXT:   vmaddr: [[TEXT_ADDR]]
  39 # CHECK-NEXT:   vmsize:
  40 ## dyld3 assumes that the __TEXT segment starts from the file header
  41 # CHECK-NEXT:   fileoff: 0
  42 # CHECK-NEXT:   filesize:
  43 # CHECK-NEXT:   maxprot: r-x
  44 # CHECK-NEXT:   initprot: r-x
  45 # CHECK-NEXT:   nsects: 1
  46 # CHECK-NEXT:   flags: 0x0
  47 # CHECK-NEXT: }
  48
  49 ## Check that we handle max-length names correctly.
  50 # CHECK:      Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
  51 # CHECK-NEXT: Name: maxlen_16ch_name
  52
  53 ## This segment must always be present at the end of an executable, and cover
  54 ## its last byte.
  55 # CHECK:      Name: __LINKEDIT
  56 # CHECK-NEXT: Size:
  57 # CHECK-NEXT: vmaddr:
  58 # CHECK-NEXT: vmsize:
  59 # CHECK-NEXT: fileoff: [[#%u, LINKEDIT_OFF:]]
  60 # CHECK-NEXT: filesize: [[#%u, LINKEDIT_SIZE:]]
  61 # CHECK-NEXT: maxprot: r--
  62 # CHECK-NEXT: initprot: r--
  63 # CHECK-NOT:  Cmd: LC_SEGMENT[[SUFFIX]]{{$}}
  64
  65 # CHECK-LABEL: Total file size
  66 # CHECK-NEXT:  [[#%u, LINKEDIT_OFF + LINKEDIT_SIZE]]
  67
  68 .text
  69 .global _main
  70 _main:
  71   ret
  72
  73 .section maxlen_16ch_name,foo