lld/test/ELF/gdb-index.s

   1 # REQUIRES: x86, zlib
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
   3 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/gdb-index.s -o %t2.o
   4 # RUN: ld.lld --gdb-index %t1.o %t2.o -o %t
   5
   6 # RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
   7 # RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s --check-prefix=DWARF
   8
   9 ## Drop .debug_gnu_pubnames and .debug_gnu_pubtypes.
  10 ## Also drop their relocation sections if --emit-relocs is specified.
  11 # RUN: ld.lld --gdb-index --emit-relocs %t1.o %t2.o -o %t1
  12 # RUN: llvm-readelf --sections %t1 | FileCheck %s --check-prefix=SECTION
  13
  14 # SECTION-NOT: .debug_gnu_pubnames
  15 # SECTION-NOT: .debug_gnu_pubtypes
  16
  17 # RUN: llvm-mc -compress-debug-sections=zlib -filetype=obj -triple=x86_64-pc-linux \
  18 # RUN:   %p/Inputs/gdb-index.s -o %t2.o
  19 # RUN: ld.lld --gdb-index %t1.o %t2.o -o %t
  20
  21 # RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
  22 # RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s --check-prefix=DWARF
  23 # RUN: llvm-readelf -S %t | FileCheck %s --check-prefix=SECTION
  24
  25 # RUN: %if zstd %{ llvm-mc -compress-debug-sections=zlib -filetype=obj -triple=x86_64 %p/Inputs/gdb-index.s -o %t2.o %}
  26 # RUN: %if zstd %{ ld.lld --gdb-index %t1.o %t2.o -o %t %}
  27 # RUN: %if zstd %{ llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM %}
  28 # RUN: %if zstd %{ llvm-dwarfdump --gdb-index %t | FileCheck %s --check-prefix=DWARF %}
  29 # RUN: %if zstd %{ llvm-readelf -S %t | FileCheck %s --check-prefix=SECTION %}
  30
  31 # DISASM:       Disassembly of section .text:
  32 # DISASM-EMPTY:
  33 # DISASM:       <entrypoint>:
  34 # DISASM-CHECK:   201000: 90 nop
  35 # DISASM-CHECK:   201001: cc int3
  36 # DISASM-CHECK:   201002: cc int3
  37 # DISASM-CHECK:   201003: cc int3
  38 # DISASM:       <aaaaaaaaaaaaaaaa>:
  39 # DISASM-CHECK:   201004: 90 nop
  40 # DISASM-CHECK:   201005: 90 nop
  41
  42 # DWARF:      .gdb_index contents:
  43 # DWARF-NEXT:    Version = 7
  44 # DWARF:       CU list offset = 0x18, has 2 entries:
  45 # DWARF-NEXT:    0: Offset = 0x0, Length = 0x34
  46 # DWARF-NEXT:    1: Offset = 0x34, Length = 0x34
  47 # DWARF:       Address area offset = 0x38, has 2 entries:
  48 # DWARF-NEXT:    Low/High address = [0x201120, 0x201121) (Size: 0x1), CU id = 0
  49 # DWARF-NEXT:    Low/High address = [0x201124, 0x201126) (Size: 0x2), CU id = 1
  50 # DWARF:       Symbol table offset = 0x60, size = 1024, filled slots:
  51 # DWARF-NEXT:    512: Name offset = 0x1c, CU vector offset = 0x0
  52 # DWARF-NEXT:      String name: aaaaaaaaaaaaaaaa, CU vector index: 0
  53 # DWARF-NEXT:    754: Name offset = 0x38, CU vector offset = 0x10
  54 # DWARF-NEXT:      String name: int, CU vector index: 2
  55 # DWARF-NEXT:    822: Name offset = 0x2d, CU vector offset = 0x8
  56 # DWARF-NEXT:      String name: entrypoint, CU vector index: 1
  57 # DWARF:       Constant pool offset = 0x2060, has 3 CU vectors:
  58 # DWARF-NEXT:    0(0x0): 0x30000001
  59 # DWARF-NEXT:    1(0x8): 0x30000000
  60 # DWARF-NEXT:    2(0x10): 0x90000000 0x90000001
  61
  62 # RUN: ld.lld --gdb-index --no-gdb-index %t1.o %t2.o -o %t2
  63 # RUN: llvm-readobj --sections %t2 | FileCheck -check-prefix=NOGDB %s
  64 # NOGDB-NOT: Name: .gdb_index
  65
  66 ## The following section contents are created by this using gcc 7.1.0:
  67 ## echo 'int entrypoint() { return 0; }' | gcc -gsplit-dwarf -xc++ -S -o- -
  68
  69 .text
  70 .Ltext0:
  71 .globl entrypoint
  72 .type entrypoint, @function
  73 entrypoint:
  74  nop
  75 .Letext0:
  76
  77 .section .debug_info,"",@progbits
  78 .long 0x30
  79 .value 0x4
  80 .long 0
  81 .byte 0x8
  82 .uleb128 0x1
  83 .quad .Ltext0
  84 .quad .Letext0-.Ltext0
  85 .long 0
  86 .long 0
  87 .long 0
  88 .long 0
  89 .byte 0x63
  90 .byte 0x88
  91 .byte 0xb4
  92 .byte 0x61
  93 .byte 0xaa
  94 .byte 0xb6
  95 .byte 0xb0
  96 .byte 0x67
  97
  98 .section .debug_abbrev,"",@progbits
  99 .uleb128 0x1
 100 .uleb128 0x11
 101 .byte 0
 102 .uleb128 0x11
 103 .uleb128 0x1
 104 .uleb128 0x12
 105 .uleb128 0x7
 106 .uleb128 0x10
 107 .uleb128 0x17
 108 .uleb128 0x2130
 109 .uleb128 0xe
 110 .uleb128 0x1b
 111 .uleb128 0xe
 112 .uleb128 0x2134
 113 .uleb128 0x19
 114 .uleb128 0x2133
 115 .uleb128 0x17
 116 .uleb128 0x2131
 117 .uleb128 0x7
 118 .byte 0
 119 .byte 0
 120 .byte 0
 121
 122 .section .debug_gnu_pubnames,"",@progbits
 123 .long 0x1e
 124 .value 0x2
 125 .long .debug_info
 126 .long 0x33
 127 .long 0x18
 128 .byte 0x30
 129 .string "entrypoint"
 130 .long 0
 131
 132 .section .debug_gnu_pubtypes,"",@progbits
 133 .long 0x17
 134 .value 0x2
 135 .long .debug_info
 136 .long 0x33
 137 .long 0x2b
 138 .byte 0x90
 139 .string "int"
 140 .long 0