lld/test/COFF/code-merge.s

   1 # REQUIRES: x86
   2
   3 # Test merging code sections with data sections.
   4
   5 # RUN: llvm-mc -triple x86_64-windows-msvc %s -filetype=obj -o %t.obj
   6 # RUN: lld-link -machine:amd64 -dll -noentry -out:%t.dll %t.obj -merge:.testx=.testd -merge:.testx2=.testbss -merge:.testd2=.testx3 -merge:.testbss2=.testx4
   7
   8 # RUN: llvm-readobj --sections %t.dll | FileCheck %s
   9 # CHECK:      Sections [
  10 # CHECK-NEXT:   Section {
  11 # CHECK-NEXT:     Number: 1
  12 # CHECK-NEXT:     Name: .testbss (2E 74 65 73 74 62 73 73)
  13 # CHECK-NEXT:     VirtualSize: 0x18
  14 # CHECK-NEXT:     VirtualAddress: 0x1000
  15 # CHECK-NEXT:     RawDataSize: 512
  16 # CHECK-NEXT:     PointerToRawData: 0x400
  17 # CHECK-NEXT:     PointerToRelocations: 0x0
  18 # CHECK-NEXT:     PointerToLineNumbers: 0x0
  19 # CHECK-NEXT:     RelocationCount: 0
  20 # CHECK-NEXT:     LineNumberCount: 0
  21 # CHECK-NEXT:     Characteristics [ (0xC0000020)
  22 # CHECK-NEXT:       IMAGE_SCN_CNT_CODE (0x20)
  23 # CHECK-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
  24 # CHECK-NEXT:       IMAGE_SCN_MEM_WRITE (0x80000000)
  25 # CHECK-NEXT:     ]
  26 # CHECK-NEXT:   }
  27 # CHECK-NEXT:   Section {
  28 # CHECK-NEXT:     Number: 2
  29 # CHECK-NEXT:     Name: .testd (2E 74 65 73 74 64 00 00)
  30 # CHECK-NEXT:     VirtualSize: 0x18
  31 # CHECK-NEXT:     VirtualAddress: 0x2000
  32 # CHECK-NEXT:     RawDataSize: 512
  33 # CHECK-NEXT:     PointerToRawData: 0x600
  34 # CHECK-NEXT:     PointerToRelocations: 0x0
  35 # CHECK-NEXT:     PointerToLineNumbers: 0x0
  36 # CHECK-NEXT:     RelocationCount: 0
  37 # CHECK-NEXT:     LineNumberCount: 0
  38 # CHECK-NEXT:     Characteristics [ (0x40000020)
  39 # CHECK-NEXT:       IMAGE_SCN_CNT_CODE (0x20)
  40 # CHECK-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
  41 # CHECK-NEXT:     ]
  42 # CHECK-NEXT:   }
  43 # CHECK-NEXT:   Section {
  44 # CHECK-NEXT:     Number: 3
  45 # CHECK-NEXT:     Name: .testx3 (2E 74 65 73 74 78 33 00)
  46 # CHECK-NEXT:     VirtualSize: 0x12
  47 # CHECK-NEXT:     VirtualAddress: 0x3000
  48 # CHECK-NEXT:     RawDataSize: 512
  49 # CHECK-NEXT:     PointerToRawData: 0x800
  50 # CHECK-NEXT:     PointerToRelocations: 0x0
  51 # CHECK-NEXT:     PointerToLineNumbers: 0x0
  52 # CHECK-NEXT:     RelocationCount: 0
  53 # CHECK-NEXT:     LineNumberCount: 0
  54 # CHECK-NEXT:     Characteristics [ (0x60000020)
  55 # CHECK-NEXT:       IMAGE_SCN_CNT_CODE (0x20)
  56 # CHECK-NEXT:       IMAGE_SCN_MEM_EXECUTE (0x20000000)
  57 # CHECK-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
  58 # CHECK-NEXT:     ]
  59 # CHECK-NEXT:   }
  60 # CHECK-NEXT:   Section {
  61 # CHECK-NEXT:     Number: 4
  62 # CHECK-NEXT:     Name: .testx4 (2E 74 65 73 74 78 34 00)
  63 # CHECK-NEXT:     VirtualSize: 0x14
  64 # CHECK-NEXT:     VirtualAddress: 0x4000
  65 # CHECK-NEXT:     RawDataSize: 512
  66 # CHECK-NEXT:     PointerToRawData: 0xA00
  67 # CHECK-NEXT:     PointerToRelocations: 0x0
  68 # CHECK-NEXT:     PointerToLineNumbers: 0x0
  69 # CHECK-NEXT:     RelocationCount: 0
  70 # CHECK-NEXT:     LineNumberCount: 0
  71 # CHECK-NEXT:     Characteristics [ (0x60000020)
  72 # CHECK-NEXT:       IMAGE_SCN_CNT_CODE (0x20)
  73 # CHECK-NEXT:       IMAGE_SCN_MEM_EXECUTE (0x20000000)
  74 # CHECK-NEXT:       IMAGE_SCN_MEM_READ (0x40000000)
  75 # CHECK-NEXT:     ]
  76 # CHECK-NEXT:   }
  77 # CHECK-NEXT: ]
  78
  79 # RUN: llvm-objdump -d %t.dll | FileCheck -check-prefix=DISASM %s
  80 # DISASM:      Disassembly of section .testbss:
  81 # DISASM-EMPTY:
  82 # DISASM-NEXT: 0000000180001000 <.testbss>:
  83 # DISASM-NEXT: 180001000: 00 00                        addb    %al, (%rax)
  84 # DISASM-NEXT: 180001002: 00 00                        addb    %al, (%rax)
  85 # DISASM-NEXT: 180001004: cc                           int3
  86 # DISASM-NEXT: 180001005: cc                           int3
  87 # DISASM-NEXT: 180001006: cc                           int3
  88 # DISASM-NEXT: 180001007: cc                           int3
  89 # DISASM-NEXT: 180001008: cc                           int3
  90 # DISASM-NEXT: 180001009: cc                           int3
  91 # DISASM-NEXT: 18000100a: cc                           int3
  92 # DISASM-NEXT: 18000100b: cc                           int3
  93 # DISASM-NEXT: 18000100c: cc                           int3
  94 # DISASM-NEXT: 18000100d: cc                           int3
  95 # DISASM-NEXT: 18000100e: cc                           int3
  96 # DISASM-NEXT: 18000100f: cc                           int3
  97 # DISASM-NEXT: 180001010: 48 c7 c0 02 00 00 00         movq    $0x2, %rax
  98 # DISASM-NEXT: 180001017: c3                           retq
  99 # DISASM-EMPTY:
 100 # DISASM-NEXT: Disassembly of section .testd:
 101 # DISASM-EMPTY:
 102 # DISASM-NEXT: 0000000180002000 <.testd>:
 103 # DISASM-NEXT: 180002000: 01 00                        addl    %eax, (%rax)
 104 # DISASM-NEXT: 180002002: cc                           int3
 105 # DISASM-NEXT: 180002003: cc                           int3
 106 # DISASM-NEXT: 180002004: cc                           int3
 107 # DISASM-NEXT: 180002005: cc                           int3
 108 # DISASM-NEXT: 180002006: cc                           int3
 109 # DISASM-NEXT: 180002007: cc                           int3
 110 # DISASM-NEXT: 180002008: cc                           int3
 111 # DISASM-NEXT: 180002009: cc                           int3
 112 # DISASM-NEXT: 18000200a: cc                           int3
 113 # DISASM-NEXT: 18000200b: cc                           int3
 114 # DISASM-NEXT: 18000200c: cc                           int3
 115 # DISASM-NEXT: 18000200d: cc                           int3
 116 # DISASM-NEXT: 18000200e: cc                           int3
 117 # DISASM-NEXT: 18000200f: cc                           int3
 118 # DISASM-NEXT: 180002010: 48 c7 c0 01 00 00 00         movq    $0x1, %rax
 119 # DISASM-NEXT: 180002017: c3                           retq
 120 # DISASM-EMPTY:
 121 # DISASM-NEXT: Disassembly of section .testx3:
 122 # DISASM-EMPTY:
 123 # DISASM-NEXT: 0000000180003000 <.testx3>:
 124 # DISASM-NEXT: 180003000: 48 c7 c0 03 00 00 00         movq    $0x3, %rax
 125 # DISASM-NEXT: 180003007: c3                           retq
 126 # DISASM-NEXT: 180003008: cc                           int3
 127 # DISASM-NEXT: 180003009: cc                           int3
 128 # DISASM-NEXT: 18000300a: cc                           int3
 129 # DISASM-NEXT: 18000300b: cc                           int3
 130 # DISASM-NEXT: 18000300c: cc                           int3
 131 # DISASM-NEXT: 18000300d: cc                           int3
 132 # DISASM-NEXT: 18000300e: cc                           int3
 133 # DISASM-NEXT: 18000300f: cc                           int3
 134 # DISASM-NEXT: 180003010: 02 00                        addb    (%rax), %al
 135 # DISASM-EMPTY:
 136 # DISASM-NEXT: Disassembly of section .testx4:
 137 # DISASM-EMPTY:
 138 # DISASM-NEXT: 0000000180004000 <.testx4>:
 139 # DISASM-NEXT: 180004000: 48 c7 c0 04 00 00 00         movq    $0x4, %rax
 140 # DISASM-NEXT: 180004007: c3                           retq
 141 # DISASM-NEXT: 180004008: cc                           int3
 142 # DISASM-NEXT: 180004009: cc                           int3
 143 # DISASM-NEXT: 18000400a: cc                           int3
 144 # DISASM-NEXT: 18000400b: cc                           int3
 145 # DISASM-NEXT: 18000400c: cc                           int3
 146 # DISASM-NEXT: 18000400d: cc                           int3
 147 # DISASM-NEXT: 18000400e: cc                           int3
 148 # DISASM-NEXT: 18000400f: cc                           int3
 149 # DISASM-NEXT: 180004010: 00 00                        addb    %al, (%rax)
 150 # DISASM-NEXT: 180004012: 00 00                        addb    %al, (%rax)
 151
 152
 153         .section .testx, "xr"
 154         .p2align 4
 155         movq $1, %rax
 156         retq
 157
 158         .section .testx2, "xr"
 159         .p2align 4
 160         movq $2, %rax
 161         retq
 162
 163         .section .testd, "dr"
 164         .p2align 4
 165         .word 1
 166
 167         .section .testbss, "b"
 168         .p2align 4
 169         .skip 4
 170
 171         .section .testx3, "xr"
 172         .p2align 4
 173         movq $3, %rax
 174         retq
 175
 176         .section .testx4, "xr"
 177         .p2align 4
 178         movq $4, %rax
 179         retq
 180
 181         .section .testd2, "dr"
 182         .p2align 4
 183         .word 2
 184
 185         .section .testbss2, "b"
 186         .p2align 4
 187         .skip 4