test/MC/COFF/seh-section.s

   1 // This test ensures functions in custom sections get unwind info emitted in a
   2 // distinct .xdata section. Ideally we'd just emit a second .xdata section with
   3 // the same name and characteristics, but MC uniques sections by name and
   4 // characteristics, so that is not possible.
   5 // RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s | llvm-readobj -s -sd | FileCheck %s
   6
   7 // CHECK:      Name: .xdata$foo
   8 // CHECK-NEXT: VirtualSize
   9 // CHECK-NEXT: VirtualAddress
  10 // CHECK-NEXT: RawDataSize: 8
  11 // CHECK-NEXT: PointerToRawData
  12 // CHECK-NEXT: PointerToRelocations
  13 // CHECK-NEXT: PointerToLineNumbers
  14 // CHECK-NEXT: RelocationCount: 0
  15 // CHECK-NEXT: LineNumberCount: 0
  16 // CHECK-NEXT: Characteristics [
  17 // CHECK-NEXT:   IMAGE_SCN_ALIGN_4BYTES
  18 // CHECK-NEXT:   IMAGE_SCN_CNT_INITIALIZED_DATA
  19 // CHECK-NEXT:   IMAGE_SCN_MEM_READ
  20 // CHECK-NEXT: ]
  21 // CHECK-NEXT: SectionData (
  22 // CHECK-NEXT:   0000: 01050200 05500402
  23 // CHECK-NEXT: )
  24
  25 // CHECK:      Name: .xdata$.mytext
  26 // CHECK-NEXT: VirtualSize
  27 // CHECK-NEXT: VirtualAddress
  28 // CHECK-NEXT: RawDataSize: 8
  29 // CHECK-NEXT: PointerToRawData
  30 // CHECK-NEXT: PointerToRelocations
  31 // CHECK-NEXT: PointerToLineNumbers
  32 // CHECK-NEXT: RelocationCount: 0
  33 // CHECK-NEXT: LineNumberCount: 0
  34 // CHECK-NEXT: Characteristics [
  35 // CHECK-NEXT:   IMAGE_SCN_ALIGN_4BYTES
  36 // CHECK-NEXT:   IMAGE_SCN_CNT_INITIALIZED_DATA
  37 // CHECK-NEXT:   IMAGE_SCN_MEM_READ
  38 // CHECK-NEXT: ]
  39 // CHECK-NEXT: SectionData (
  40 // CHECK-NEXT:   0000: 01050200 05500402
  41 // CHECK-NEXT: )
  42
  43 // CHECK:      Name: .xdata
  44 // CHECK-NEXT: VirtualSize
  45 // CHECK-NEXT: VirtualAddress
  46 // CHECK-NEXT: RawDataSize: 8
  47 // CHECK-NEXT: PointerToRawData
  48 // CHECK-NEXT: PointerToRelocations
  49 // CHECK-NEXT: PointerToLineNumbers
  50 // CHECK-NEXT: RelocationCount: 0
  51 // CHECK-NEXT: LineNumberCount: 0
  52 // CHECK-NEXT: Characteristics [
  53 // CHECK-NEXT:   IMAGE_SCN_ALIGN_4BYTES
  54 // CHECK-NEXT:   IMAGE_SCN_CNT_INITIALIZED_DATA
  55 // CHECK-NEXT:   IMAGE_SCN_MEM_READ
  56 // CHECK-NEXT: ]
  57 // CHECK-NEXT: SectionData (
  58 // CHECK-NEXT:   0000: 01050200 05500402
  59 // CHECK-NEXT: )
  60
  61
  62
  63     .section .text$foo,"x"
  64     .globl foo
  65     .def foo; .scl 2; .type 32; .endef
  66     .seh_proc foo
  67 foo:
  68     subq $8, %rsp
  69     .seh_stackalloc 8
  70     pushq %rbp
  71     .seh_pushreg %rbp
  72     .seh_endprologue
  73     popq %rbp
  74     addq $8, %rsp
  75     ret
  76     .seh_endproc
  77
  78     .section .mytext,"x"
  79     .globl bar
  80     .def bar; .scl 2; .type 32; .endef
  81     .seh_proc bar
  82 bar:
  83     subq $8, %rsp
  84     .seh_stackalloc 8
  85     pushq %rbp
  86     .seh_pushreg %rbp
  87     .seh_endprologue
  88     popq %rbp
  89     addq $8, %rsp
  90     ret
  91     .seh_endproc
  92
  93     .section .text
  94     .globl baz
  95     .def baz; .scl 2; .type 32; .endef
  96     .seh_proc baz
  97 baz:
  98     subq $8, %rsp
  99     .seh_stackalloc 8
 100     pushq %rbp
 101     .seh_pushreg %rbp
 102     .seh_endprologue
 103     popq %rbp
 104     addq $8, %rsp
 105     ret
 106     .seh_endproc
 107