llvm/test/MC/ELF/gen-dwarf64.s

   1 ## This checks that llvm-mc is able to produce 64-bit debug info.
   2
   3 # RUN: llvm-mc -g -dwarf-version 3 -dwarf64 -triple x86_64 %s -filetype=obj -o %t3.o
   4 # RUN: llvm-readobj -r %t3.o | FileCheck --check-prefixes=REL,REL3 %s --implicit-check-not="R_{{.*}} .debug_"
   5 # RUN: llvm-dwarfdump -v %t3.o | FileCheck --check-prefixes=DUMP,DUMP3 %s
   6
   7 # RUN: llvm-mc -g -dwarf-version 5 -dwarf64 -triple x86_64 %s -filetype=obj -o %t5.o
   8 # RUN: llvm-readobj -r %t5.o | FileCheck --check-prefixes=REL,REL5 %s --implicit-check-not="R_{{.*}} .debug_"
   9 # RUN: llvm-dwarfdump -v %t5.o | FileCheck --check-prefixes=DUMP,DUMP5 %s
  10
  11 ## The references to other debug info sections are 64-bit, as required for DWARF64.
  12 # REL:         Section ({{[0-9]+}}) .rela.debug_frame {
  13 # REL-NEXT:      R_X86_64_64 .debug_frame 0x0
  14 # REL:         Section ({{[0-9]+}}) .rela.debug_info {
  15 # REL-NEXT:      R_X86_64_64 .debug_abbrev 0x0
  16 # REL-NEXT:      R_X86_64_64 .debug_line 0x0
  17 # REL3-NEXT:     R_X86_64_64 .debug_ranges 0x0
  18 # REL5-NEXT:     R_X86_64_64 .debug_rnglists 0x14
  19 # REL:         Section ({{[0-9]+}}) .rela.debug_aranges {
  20 # REL-NEXT:      R_X86_64_64 .debug_info 0x0
  21 # REL5:        Section ({{[0-9]+}}) .rela.debug_line {
  22 # REL5-NEXT:     R_X86_64_64 .debug_line_str 0x0
  23 # REL5-NEXT:     R_X86_64_64 .debug_line_str 0x
  24
  25 ## DW_FORM_sec_offset was introduced in DWARFv4.
  26 ## For DWARFv3, DW_FORM_data8 is used instead.
  27 # DUMP:       .debug_abbrev contents:
  28 # DUMP3:        DW_AT_stmt_list DW_FORM_data8
  29 # DUMP3-NEXT:   DW_AT_ranges    DW_FORM_data8
  30 # DUMP5:        DW_AT_stmt_list DW_FORM_sec_offset
  31 # DUMP5-NEXT:   DW_AT_ranges    DW_FORM_sec_offset
  32
  33 # DUMP:       .debug_info contents:
  34 # DUMP-NEXT:  0x00000000: Compile Unit: {{.*}} format = DWARF64
  35 # DUMP:       DW_TAG_compile_unit [1] *
  36 # DUMP3-NEXT:   DW_AT_stmt_list [DW_FORM_data8] (0x0000000000000000)
  37 # DUMP5-NEXT:   DW_AT_stmt_list [DW_FORM_sec_offset] (0x0000000000000000)
  38 # DUMP3-NEXT:   DW_AT_ranges [DW_FORM_data8] (0x0000000000000000
  39 # DUMP5-NEXT:   DW_AT_ranges [DW_FORM_sec_offset] (0x0000000000000014
  40 # DUMP-NEXT:      [0x0000000000000000, 0x0000000000000001) ".foo"
  41 # DUMP-NEXT:      [0x0000000000000000, 0x0000000000000001) ".bar")
  42 # DUMP:       DW_TAG_label [2]
  43 # DUMP-NEXT:    DW_AT_name [DW_FORM_string] ("foo")
  44 # DUMP:       DW_TAG_label [2]
  45 # DUMP-NEXT:    DW_AT_name [DW_FORM_string] ("bar")
  46
  47 # DUMP:       .debug_frame contents:
  48 # DUMP:       00000000 {{([[:xdigit:]]{16})}} ffffffffffffffff CIE
  49 # DUMP-NEXT:    Format: DWARF64
  50 # DUMP:       {{([[:xdigit:]]{8})}} {{([[:xdigit:]]{16})}} 0000000000000000 FDE cie=00000000 pc=00000000...00000001
  51 # DUMP-NEXT:    Format: DWARF64
  52
  53 ## Even though the debug info sections are in the 64-bit format,
  54 ## .eh_frame is still generated as 32-bit.
  55 # DUMP:       .eh_frame contents:
  56 # DUMP:       00000000 {{([[:xdigit:]]{8})}} 00000000 CIE
  57 # DUMP-NEXT:    Format: DWARF32
  58 # DUMP:       {{([[:xdigit:]]{8})}} {{([[:xdigit:]]{8})}} {{([[:xdigit:]]{8})}} FDE cie=00000000 pc=00000000...00000001
  59 # DUMP-NEXT:    Format: DWARF32
  60
  61 # DUMP:       .debug_aranges contents:
  62 # DUMP-NEXT:  Address Range Header: length = 0x0000000000000044, format = DWARF64, version = 0x0002, cu_offset = 0x0000000000000000, addr_size = 0x08, seg_size = 0x00
  63 # DUMP-NEXT:  [0x0000000000000000,  0x0000000000000001)
  64 # DUMP-NEXT:  [0x0000000000000000,  0x0000000000000001)
  65 # DUMP-EMPTY:
  66
  67 # DUMP:       .debug_line contents:
  68 # DUMP-NEXT:  debug_line[0x00000000]
  69 # DUMP-NEXT:  Line table prologue:
  70 # DUMP-NEXT:      total_length:
  71 # DUMP-NEXT:            format: DWARF64
  72 # DUMP5:      include_directories[  0] = .debug_line_str[0x0000000000000000] = "[[DIR:.+]]"
  73 # DUMP5-NEXT: file_names[  0]:
  74 # DUMP5-NEXT:            name: .debug_line_str[0x00000000[[FILEOFF:[[:xdigit:]]{8}]]] = "[[FILE:.+]]"
  75 # DUMP5-NEXT:       dir_index: 0
  76
  77 # DUMP5:      .debug_line_str contents:
  78 # DUMP5-NEXT: 0x00000000: "[[DIR]]"
  79 # DUMP5-NEXT: 0x[[FILEOFF]]: "[[FILE]]"
  80
  81 # DUMP3:      .debug_ranges contents:
  82 # DUMP3-NEXT: 00000000 ffffffffffffffff 0000000000000000
  83 # DUMP3-NEXT: 00000000 0000000000000000 0000000000000001
  84 # DUMP3-NEXT: 00000000 ffffffffffffffff 0000000000000000
  85 # DUMP3-NEXT: 00000000 0000000000000000 0000000000000001
  86 # DUMP3-NEXT: 00000000 <End of list>
  87
  88 # DUMP5:      .debug_rnglists contents:
  89 # DUMP5-NEXT: 0x00000000: range list header: length = 0x000000000000001d, format = DWARF64, version = 0x0005, addr_size = 0x08, seg_size = 0x00, offset_entry_count = 0x00000000
  90 # DUMP5-NEXT: ranges:
  91 # DUMP5-NEXT: 0x00000014: [DW_RLE_start_length]: 0x0000000000000000, 0x0000000000000001 => [0x0000000000000000, 0x0000000000000001)
  92 # DUMP5-NEXT: 0x0000001e: [DW_RLE_start_length]: 0x0000000000000000, 0x0000000000000001 => [0x0000000000000000, 0x0000000000000001)
  93 # DUMP5-NEXT: 0x00000028: [DW_RLE_end_of_list ]
  94
  95     .cfi_sections .eh_frame, .debug_frame
  96
  97     .section .foo, "ax", @progbits
  98 foo:
  99     nop
 100
 101     .section .bar, "ax", @progbits
 102 bar:
 103     .cfi_startproc
 104     nop
 105     .cfi_endproc