lld/test/ELF/relocation-i686.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=i686 %s -o %t.o
   3 // RUN: llvm-mc -filetype=obj -triple=i686 %p/Inputs/shared.s -o %t2.o
   4 // RUN: ld.lld -shared %t2.o -soname=t2.so -o %t2.so
   5 // RUN: ld.lld --hash-style=sysv %t.o %t2.so -o %t
   6 // RUN: llvm-readobj -S %t | FileCheck --check-prefix=ADDR %s
   7 // RUN: llvm-objdump --no-print-imm-hex -d --no-show-raw-insn %t | FileCheck %s
   8
   9 .global _start
  10 _start:
  11
  12 .section       .R_386_32,"ax",@progbits
  13 .global R_386_32
  14 R_386_32:
  15   movl $R_386_32 + 1, %edx
  16
  17
  18 .section       .R_386_PC32,"ax",@progbits,unique,1
  19 .global R_386_PC32
  20 R_386_PC32:
  21   call R_386_PC32_2
  22
  23 .section       .R_386_PC32,"ax",@progbits,unique,2
  24 .zero 4
  25 R_386_PC32_2:
  26   nop
  27
  28 // CHECK: Disassembly of section .R_386_32:
  29 // CHECK-EMPTY:
  30 // CHECK-NEXT: <R_386_32>:
  31 // CHECK-NEXT:   movl $4198829, %edx
  32
  33 // CHECK: Disassembly of section .R_386_PC32:
  34 // CHECK-EMPTY:
  35 // CHECK-NEXT: <R_386_PC32>:
  36 // CHECK-NEXT:   calll 0x4011ba
  37
  38 // CHECK:      <R_386_PC32_2>:
  39 // CHECK-NEXT:   nop
  40
  41 // Create a .got
  42 movl bar@GOT, %eax
  43
  44 // ADDR:      Name: .plt
  45 // ADDR-NEXT: Type: SHT_PROGBITS
  46 // ADDR-NEXT: Flags [
  47 // ADDR-NEXT:   SHF_ALLOC
  48 // ADDR-NEXT:   SHF_EXECINSTR
  49 // ADDR-NEXT: ]
  50 // ADDR-NEXT: Address: 0x4011E0
  51 // ADDR-NEXT: Offset: 0x1E0
  52 // ADDR-NEXT: Size: 32
  53
  54 // ADDR:      Name: .got.plt (
  55 // ADDR-NEXT: Type: SHT_PROGBITS
  56 // ADDR-NEXT: Flags [
  57 // ADDR-NEXT:   SHF_ALLOC
  58 // ADDR-NEXT:   SHF_WRITE
  59 // ADDR-NEXT: ]
  60 // ADDR-NEXT: Address: 0x403280
  61 // ADDR-NEXT: Offset:
  62 // ADDR-NEXT: Size:
  63
  64 .section .R_386_GOTPC,"ax",@progbits
  65 R_386_GOTPC:
  66  movl $_GLOBAL_OFFSET_TABLE_, %eax
  67
  68 // .got.plt - 0x4011c0 = 0x403280 - 0x4011c0 = 8384
  69 // CHECK:      Disassembly of section .R_386_GOTPC:
  70 // CHECK-EMPTY:
  71 // CHECK-NEXT: <R_386_GOTPC>:
  72 // CHECK-NEXT:   4011c0:       movl  $8384, %eax
  73
  74 .section .dynamic_reloc, "ax",@progbits
  75  call bar
  76 // .plt + 16 - (0x4011c5 + 5) = 0x4011e0 + 16 - 0x4011ca = 38
  77 // CHECK:      Disassembly of section .dynamic_reloc:
  78 // CHECK-EMPTY:
  79 // CHECK-NEXT: <.dynamic_reloc>:
  80 // CHECK-NEXT:   4011c5:       calll 0x4011f0 <bar@plt>
  81
  82 .section .R_386_GOT32,"ax",@progbits
  83 .global R_386_GOT32
  84 R_386_GOT32:
  85  movl bar@GOT, %eax
  86  movl zed@GOT, %eax
  87  movl bar+8@GOT, %eax
  88  movl zed+4@GOT, %eax
  89
  90 // &.got[0] - .got.plt = 0x402278 - 0x403280 = 4294963192
  91 // &.got[1] - .got.plt = 0x402278 + 4 - 0x403280 = 4294963196
  92 // &.got[2] - .got.plt = 0x402278 + 8 - 0x403280 = 4294963200
  93 // CHECK:      Disassembly of section .R_386_GOT32:
  94 // CHECK-EMPTY:
  95 // CHECK-NEXT: <R_386_GOT32>:
  96 // CHECK-NEXT: 4011ca:       movl 4294963192, %eax
  97 // CHECK-NEXT:               movl 4294963196, %eax
  98 // CHECK-NEXT:               movl 4294963200, %eax
  99 // CHECK-NEXT:               movl 4294963200, %eax