test/MC/ELF/gen-dwarf.s

   1 // RUN: llvm-mc -g -dwarf-version 2 -triple  i686-pc-linux-gnu %s -filetype=obj -o - | llvm-readobj -r | FileCheck %s
   2 // RUN: not llvm-mc -g -dwarf-version 1  -triple  i686-pc-linux-gnu %s -filetype=asm -o - 2>&1 | FileCheck --check-prefix=DWARF1 %s
   3 // RUN: llvm-mc -g -dwarf-version 2 -triple  i686-pc-linux-gnu %s -filetype=asm -o - | FileCheck --check-prefix=ASM --check-prefix=DWARF2 %s
   4 // RUN: llvm-mc -g -dwarf-version 3 -triple  i686-pc-linux-gnu %s -filetype=asm -o - | FileCheck --check-prefix=ASM --check-prefix=DWARF3 %s
   5 // RUN: llvm-mc -g -triple  i686-pc-linux-gnu %s -filetype=asm -o - | FileCheck --check-prefix=ASM --check-prefix=DWARF4 %s
   6 // RUN: llvm-mc -g -dwarf-version 5  -triple  i686-pc-linux-gnu %s -filetype=asm -o - 2>&1 | FileCheck --check-prefix=DWARF5 %s
   7 // RUN: not llvm-mc -g -dwarf-version 6  -triple  i686-pc-linux-gnu %s -filetype=asm -o - 2>&1 | FileCheck --check-prefix=DWARF6 %s
   8
   9
  10 // Test that on ELF:
  11 // 1. the debug info has a relocation to debug_abbrev and one to debug_line.
  12 // 2. the debug_aranges has relocations to text and debug_line.
  13
  14
  15     .text
  16     .globl foo
  17     .type foo, @function
  18     .align 4
  19 foo:
  20     ret
  21     .size foo, .-foo
  22
  23 // CHECK:      Relocations [
  24 // CHECK:        Section ({{[^ ]+}}) .rel.debug_info {
  25 // CHECK-NEXT:     0x6 R_386_32 .debug_abbrev 0x0
  26 // CHECK-NEXT:     0xC R_386_32 .debug_line 0x0
  27 // CHECK:        }
  28 // CHECK-NEXT:   Section ({{[^ ]+}}) .rel.debug_aranges {
  29 // CHECK-NEXT:     0x6 R_386_32 .debug_info 0x0
  30 // CHECK-NEXT:     0x10 R_386_32 .text 0x0
  31 // CHECK-NEXT:   }
  32 // CHECK:      ]
  33
  34 // First instance of the section is just to give it a label for debug_aranges to refer to
  35 // ASM: .section .debug_info
  36
  37 // ASM: .section .debug_abbrev
  38 // ASM-NEXT: [[ABBREV_LABEL:.Ltmp[0-9]+]]
  39 // DWARF5: .section .debug_abbrev
  40 // DWARF5-NEXT: [[ABBREV_LABEL:.Ltmp[0-9]+]]
  41
  42 // Second instance of the section has the CU
  43 // ASM: .section .debug_info
  44 // Dwarf version
  45 // DWARF2: .short 2
  46 // DWARF3: .short 3
  47 // DWARF4: .short 4
  48 // ASM-NEXT: .long [[ABBREV_LABEL]]
  49 // DWARF5: .short 5
  50 // DWARF5-NEXT: .byte 1
  51 // DWARF5-NEXT: .byte 4
  52 // DWARF5-NEXT: .long [[ABBREV_LABEL]]
  53
  54 // First .byte 1 is the abbreviation number for the compile_unit abbrev
  55 // ASM: .byte 1
  56 // ASM-NEXT: .long [[LINE_LABEL:.L[a-z0-9]+]]
  57
  58 // ASM: .section .debug_line
  59 // ASM-NEXT: [[LINE_LABEL]]
  60
  61 // DWARF1: Dwarf version 1 is not supported.
  62 // DWARF6: Dwarf version 6 is not supported.