test/MC/AArch64/seh.s

   1 // This test checks that the SEH directives emit the correct unwind data.
   2
   3 // RUN: llvm-mc -triple aarch64-pc-win32 -filetype=obj %s | llvm-readobj -S -r | FileCheck %s
   4
   5 // CHECK:      Sections [
   6 // CHECK:        Section {
   7 // CHECK:          Name: .text
   8 // CHECK:          RelocationCount: 0
   9 // CHECK:          Characteristics [
  10 // CHECK-NEXT:       ALIGN_4BYTES
  11 // CHECK-NEXT:       CNT_CODE
  12 // CHECK-NEXT:       MEM_EXECUTE
  13 // CHECK-NEXT:       MEM_READ
  14 // CHECK-NEXT:     ]
  15 // CHECK-NEXT:   }
  16 // CHECK:        Section {
  17 // CHECK:          Name: .xdata
  18 // CHECK:          RawDataSize: 24
  19 // CHECK:          RelocationCount: 1
  20 // CHECK:          Characteristics [
  21 // CHECK-NEXT:       ALIGN_4BYTES
  22 // CHECK-NEXT:       CNT_INITIALIZED_DATA
  23 // CHECK-NEXT:       MEM_READ
  24 // CHECK-NEXT:     ]
  25 // CHECK-NEXT:   }
  26 // CHECK:        Section {
  27 // CHECK:          Name: .pdata
  28 // CHECK:          RelocationCount: 6
  29 // CHECK:          Characteristics [
  30 // CHECK-NEXT:       ALIGN_4BYTES
  31 // CHECK-NEXT:       CNT_INITIALIZED_DATA
  32 // CHECK-NEXT:       MEM_READ
  33 // CHECK-NEXT:     ]
  34 // CHECK-NEXT:   }
  35 // CHECK-NEXT: ]
  36
  37 // CHECK-NEXT: Relocations [
  38 // CHECK-NEXT:   Section (4) .xdata {
  39 // CHECK-NEXT:     0x8 IMAGE_REL_ARM64_ADDR32NB __C_specific_handler
  40 // CHECK-NEXT:   }
  41 // CHECK-NEXT:   Section (5) .pdata {
  42 // CHECK-NEXT:     0x0 IMAGE_REL_ARM64_ADDR32NB func
  43 // CHECK-NEXT:     0x4 IMAGE_REL_ARM64_ADDR32NB .xdata
  44 // CHECK-NEXT:     0x8 IMAGE_REL_ARM64_ADDR32NB func
  45 // CHECK-NEXT:     0xC IMAGE_REL_ARM64_ADDR32NB .xdata
  46 // CHECK-NEXT:     0x10 IMAGE_REL_ARM64_ADDR32NB smallFunc
  47 // CHECK-NEXT:     0x14 IMAGE_REL_ARM64_ADDR32NB .xdata
  48 // CHECK-NEXT:   }
  49 // CHECK-NEXT: ]
  50
  51
  52     .text
  53     .globl func
  54     .def func
  55     .scl 2
  56     .type 32
  57     .endef
  58     .seh_proc func
  59 func:
  60     sub sp, sp, #24
  61     .seh_stackalloc 24
  62     mov x29, sp
  63     .seh_endprologue
  64     .seh_handler __C_specific_handler, @except
  65     .seh_handlerdata
  66     .long 0
  67     .text
  68     .seh_startchained
  69     .seh_endprologue
  70     .seh_endchained
  71     add sp, sp, #24
  72     ret
  73     .seh_endproc
  74
  75 // Test emission of small functions.
  76     .globl smallFunc
  77     .def smallFunc
  78     .scl 2
  79     .type 32
  80     .endef
  81     .seh_proc smallFunc
  82 smallFunc:
  83     ret
  84     .seh_endproc