lld/test/MachO/x86-64-reloc-unsigned.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
   3 # RUN: %lld -o %t %t.o
   4 # RUN: llvm-objdump --macho --rebase --full-contents %t | FileCheck %s
   5
   6 # RUN: %lld -pie -o %t-pie %t.o
   7 # RUN: llvm-objdump --macho --rebase %t-pie | FileCheck %s --check-prefix=PIE
   8 # RUN: %lld -pie -no_pie -o %t-no-pie %t.o
   9 # RUN: llvm-objdump --macho --rebase %t-no-pie | FileCheck %s --check-prefix=NO-PIE
  10 # RUN: %lld -no_pie -pie -o %t-pie %t.o
  11 # RUN: llvm-objdump --macho --rebase %t-pie | FileCheck %s --check-prefix=PIE
  12
  13 # CHECK:       Contents of section __DATA,foo:
  14 # CHECK-NEXT:  100001000 08100000 01000000
  15 # CHECK:       Contents of section __DATA,bar:
  16 # CHECK-NEXT:  100001008 011000f0 11211111 02000000
  17
  18 # PIE:      Rebase table:
  19 # PIE-NEXT: segment  section            address           type
  20 # PIE-DAG:  __DATA   foo                0x[[#%X,ADDR:]]   pointer
  21 # PIE-DAG:  __DATA   bar                0x[[#ADDR + 8]]   pointer
  22 # PIE-DAG:  __DATA   bar                0x[[#ADDR + 12]]  pointer
  23 # PIE-DAG:  __DATA   baz                0x[[#ADDR + 20]]  pointer
  24
  25 # NO-PIE:      Rebase table:
  26 # NO-PIE-NEXT: segment  section            address           type
  27 # NO-PIE-EMPTY:
  28
  29 .globl _main, _foo, _bar
  30
  31 .section __DATA,foo
  32 _foo:
  33 .quad _bar
  34
  35 .section __DATA,bar
  36 _bar:
  37 ## We create a .int symbol reference here -- with non-zero data immediately
  38 ## after -- to check that lld reads precisely 32 bits (and not more) of the
  39 ## implicit addend when handling unsigned relocations of r_length = 2.
  40 ## Note that __PAGEZERO occupies the lower 32 bits, so all symbols are above
  41 ## that. To get a final relocated address that fits within 32 bits, we need to
  42 ## subtract an offset here.
  43 .int _foo - 0x0fffffff
  44 ## The unsigned relocation should support 64-bit addends too (r_length = 3).
  45 .quad _foo + 0x111111111
  46
  47 .section __DATA,baz
  48 ## Generates a section relocation.
  49 .quad L_.baz
  50 L_.baz:
  51   .space 0
  52
  53 .text
  54 _main:
  55   mov $0, %rax
  56   ret