lld/test/ELF/relocation.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
   3 // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/shared.s -o %t2
   4 // RUN: ld.lld %t2 -soname fixed-length-string.so -o %t2.so -shared
   5 // RUN: ld.lld --hash-style=sysv %t %t2.so -o %t3
   6 // RUN: llvm-readobj -S  %t3 | FileCheck --check-prefix=SEC %s
   7 // RUN: llvm-objdump -s -d %t3 | FileCheck %s
   8
   9 // SEC:      Name: .plt
  10 // SEC-NEXT: Type: SHT_PROGBITS
  11 // SEC-NEXT: Flags [
  12 // SEC-NEXT:   SHF_ALLOC
  13 // SEC-NEXT:   SHF_EXECINSTR
  14 // SEC-NEXT: ]
  15 // SEC-NEXT: Address: 0x201340
  16 // SEC-NEXT: Offset: 0x340
  17 // SEC-NEXT: Size: 48
  18
  19 // SEC:         Name: .got
  20 // SEC-NEXT:   Type: SHT_PROGBITS
  21 // SEC-NEXT:   Flags [
  22 // SEC-NEXT:     SHF_ALLOC
  23 // SEC-NEXT:     SHF_WRITE
  24 // SEC-NEXT:   ]
  25 // SEC-NEXT:   Address: 0x202460
  26 // SEC-NEXT:   Offset:
  27 // SEC-NEXT:   Size: 8
  28 // SEC-NEXT:   Link: 0
  29 // SEC-NEXT:   Info: 0
  30 // SEC-NEXT:   AddressAlignment: 8
  31 // SEC-NEXT:   EntrySize: 0
  32 // SEC-NEXT: }
  33
  34 // SEC:        Name: .got.plt
  35 // SEC-NEXT:   Type: SHT_PROGBITS
  36 // SEC-NEXT:   Flags [
  37 // SEC-NEXT:     SHF_ALLOC
  38 // SEC-NEXT:     SHF_WRITE
  39 // SEC-NEXT:   ]
  40 // SEC-NEXT:   Address: 0x203468
  41 // SEC-NEXT:   Offset: 0x468
  42 // SEC-NEXT:   Size: 40
  43 // SEC-NEXT:   Link: 0
  44 // SEC-NEXT:   Info: 0
  45 // SEC-NEXT:   AddressAlignment: 8
  46 // SEC-NEXT:   EntrySize: 0
  47 // SEC-NEXT:   }
  48
  49 .section .R_X86_64_64,"a",@progbits
  50 .global R_X86_64_64
  51 R_X86_64_64:
  52  .quad R_X86_64_64
  53
  54 // CHECK:      Contents of section .R_X86_64_64:
  55 // CHECK-NEXT:   2002f8 f8022000 00000000
  56
  57 .section .R_X86_64_GOTPCREL,"a",@progbits
  58 .global R_X86_64_GOTPCREL
  59 R_X86_64_GOTPCREL:
  60  .long zed@gotpcrel
  61
  62 // 0x202460(.got) - 0x200300(.R_X86_64_GOTPCREL) = 0x2160
  63 // CHECK:      Contents of section .R_X86_64_GOTPCREL
  64 // CHECK-NEXT:   200300 60210000
  65
  66 .section .R_X86_64_GOT32,"a",@progbits
  67 .global R_X86_64_GOT32
  68 R_X86_64_GOT32:
  69         .long zed@got
  70
  71 // CHECK: Contents of section .R_X86_64_GOT32:
  72 // CHECK-NEXT: f8efffff
  73
  74
  75 // CHECK: Contents of section .R_X86_64_GOT64:
  76 // CHECK-NEXT: f8efffff ffffffff
  77 .section .R_X86_64_GOT64,"a",@progbits
  78 .global R_X86_64_GOT64
  79 R_X86_64_GOT64:
  80         .quad zed@got
  81
  82 .section       .text,"ax",@progbits,unique,1
  83 .global _start
  84 _start:
  85   call lulz
  86
  87 .section       .text,"ax",@progbits,unique,2
  88 .zero 4
  89 .global lulz
  90 lulz:
  91   nop
  92
  93 // CHECK: Disassembly of section .text:
  94 // CHECK-EMPTY:
  95 // CHECK-NEXT: <_start>:
  96 // CHECK-NEXT:   201310:  e8 04 00 00 00   callq 0x201319
  97 // CHECK-NEXT:   201315:
  98
  99 // CHECK:      <lulz>:
 100 // CHECK-NEXT:   201319:  90  nop
 101
 102
 103 .section       .text2,"ax",@progbits
 104 .global R_X86_64_32
 105 R_X86_64_32:
 106   movl $R_X86_64_32, %edx
 107
 108 // FIXME: this would be far more self evident if llvm-objdump printed
 109 // constants in hex.
 110 // CHECK: Disassembly of section .text2:
 111 // CHECK-EMPTY:
 112 // CHECK-NEXT: <R_X86_64_32>:
 113 // CHECK-NEXT:  20131a: {{.*}} movl $2102042, %edx
 114
 115 .section .R_X86_64_32S,"ax",@progbits
 116 .global R_X86_64_32S
 117 R_X86_64_32S:
 118   movq lulz - 0x100000, %rdx
 119
 120 // CHECK: Disassembly of section .R_X86_64_32S:
 121 // CHECK-EMPTY:
 122 // CHECK-NEXT: <R_X86_64_32S>:
 123 // CHECK-NEXT:  {{.*}}: {{.*}} movq 1053465, %rdx
 124
 125 .section .R_X86_64_PC32,"ax",@progbits
 126 .global R_X86_64_PC32
 127 R_X86_64_PC32:
 128  call bar
 129  movl $bar, %eax
 130 //16 is a size of PLT[0]
 131 // 0x201340 + 16 - (0x201327 + 5) = 36
 132 // CHECK:      Disassembly of section .R_X86_64_PC32:
 133 // CHECK-EMPTY:
 134 // CHECK-NEXT: <R_X86_64_PC32>:
 135 // CHECK-NEXT:  201327:   {{.*}}  callq  0x201350
 136 // CHECK-NEXT:  20132c:   {{.*}}  movl $2102096, %eax
 137
 138 .section .R_X86_64_32S_2,"ax",@progbits
 139 .global R_X86_64_32S_2
 140 R_X86_64_32S_2:
 141   mov bar2, %eax
 142 // plt is  at 0x201340. The second plt entry is at 0x201360 == 2102112
 143 // CHECK:      Disassembly of section .R_X86_64_32S_2:
 144 // CHECK-EMPTY:
 145 // CHECK-NEXT: <R_X86_64_32S_2>:
 146 // CHECK-NEXT: 201331: {{.*}}  movl    2102112, %eax