lld/test/ELF/conflict-debug-variable.s

   1 // REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
   3 # RUN: llvm-dwarfdump %t.o | FileCheck -check-prefix=INPUT %s
   4 # RUN: not ld.lld %t.o %t.o -o /dev/null 2>&1 | FileCheck %s
   5
   6 # INPUT:     .debug_info contents:
   7 # INPUT:       DW_TAG_variable
   8 # INPUT-NEXT:    DW_AT_name      ("foo")
   9 # INPUT-NEXT:    DW_AT_decl_file ("1.c")
  10 # INPUT-NEXT:    DW_AT_decl_line (1)
  11 # INPUT-NEXT:    DW_AT_type      (0x00000032 "int")
  12 # INPUT-NEXT:    DW_AT_external  (true)
  13 # INPUT-NEXT:    DW_AT_location  (DW_OP_addr 0x0)
  14 # INPUT:       DW_TAG_variable
  15 # INPUT-NEXT:    DW_AT_name      ("bar")
  16 # INPUT-NEXT:    DW_AT_decl_file ("1.c")
  17 # INPUT-NEXT:    DW_AT_decl_line (2)
  18 # INPUT-NEXT:    DW_AT_type      (0x00000032 "int")
  19 # INPUT-NEXT:    DW_AT_external  (true)
  20 # INPUT-NEXT:    DW_AT_location  (DW_OP_addr 0x0)
  21
  22 ## Check we use information from .debug_info in messages.
  23 # CHECK:      duplicate symbol: bar
  24 # CHECK-NEXT: >>> defined at 1.c:2
  25 # CHECK-NEXT: >>>            {{.*}}:(bar)
  26 # CHECK-NEXT: >>> defined at 1.c:2
  27 # CHECK-NEXT: >>>            {{.*}}:(.data+0x0)
  28 # CHECK:      duplicate symbol: foo
  29 # CHECK-NEXT: >>> defined at 1.c:1
  30 # CHECK-NEXT: >>>            {{.*}}:(foo)
  31 # CHECK-NEXT: >>> defined at 1.c:1
  32 # CHECK-NEXT: >>>            {{.*}}:(.bss+0x0)
  33
  34 ## Check that stripping debug sections does not break error reporting.
  35 # RUN: not ld.lld --strip-debug %t.o %t.o -o /dev/null 2>&1 | FileCheck %s
  36
  37 # Used reduced output from following code and gcc 7.1.0
  38 # to produce this input file:
  39 # Source (1.c):
  40 #  int foo = 0;
  41 #  int bar = 1;
  42 #  static int zed = 3;
  43 # Invocation: g++ -g -S 1.c
  44
  45 .data
  46 .globl  bar
  47 .type  bar, @object
  48 .size  bar, 4
  49 bar:
  50  .byte 0
  51
  52 .bss
  53 .globl  foo
  54 .type  foo, @object
  55 .size  foo, 4
  56 foo:
  57
  58 .local zed
  59 zed:
  60
  61 .text
  62 .file 1 "1.c"
  63
  64 .section  .debug_info,"",@progbits
  65   .long  0x5a            # Compile Unit: length = 0x0000004b)
  66   .value  0x4            # version = 0x0004
  67   .long  0               # abbr_offset = 0x0
  68   .byte  0x8             # addr_size = 0x08
  69
  70   .uleb128 0x1           # DW_TAG_compile_unit [1] *
  71   .long  0               # DW_AT_producer [DW_FORM_strp]  ( .debug_str[0x00000000] = )
  72   .byte  0x4             # DW_AT_language [DW_FORM_data1]  (DW_LANG_C_plus_plus)
  73   .string  "1.c"         # DW_AT_name [DW_FORM_string]  ("1.c")
  74   .long  0               # DW_AT_comp_dir [DW_FORM_strp]  ( .debug_str[0x00000000] = )
  75   .long  0               # DW_AT_stmt_list [DW_FORM_sec_offset]  (0x00000000)
  76
  77   .uleb128 0x2           # DW_TAG_variable [2]
  78   .string  "foo"         # DW_AT_name [DW_FORM_string]  ("foo")
  79   .byte  0x1             # DW_AT_decl_file [DW_FORM_data1]  ("1.c")
  80   .byte  0x1             # DW_AT_decl_line [DW_FORM_data1]  (1)
  81   .long  0x32            # DW_AT_type [DW_FORM_ref4]  (cu + 0x0032 => {0x00000032})
  82   .uleb128 0x9           # DW_AT_external [DW_FORM_flag_present]  (true)
  83   .byte  0x3
  84   .quad  foo             # DW_AT_location [DW_FORM_exprloc]  (DW_OP_addr 0x0)
  85
  86   .uleb128 0x3           # DW_TAG_base_type [3]
  87   .byte  0x4             # DW_AT_byte_size [DW_FORM_data1]  (0x04)
  88   .byte  0x5             # DW_AT_encoding [DW_FORM_data1]  (DW_ATE_signed)
  89   .string  "int"         # DW_AT_name [DW_FORM_string]  ("int")
  90
  91   .uleb128 0x2           # DW_TAG_variable [2]
  92   .string  "bar"         # DW_AT_name [DW_FORM_string]  ("bar")
  93   .byte  0x1             # DW_AT_decl_file [DW_FORM_data1]  ("1.c")
  94   .byte  0x2             # DW_AT_decl_line [DW_FORM_data1]  (2)
  95   .long  0x32            # DW_AT_type [DW_FORM_ref4]  (cu + 0x0032 => {0x00000032})
  96   .uleb128 0x9           # DW_AT_external [DW_FORM_flag_present]  (true)
  97   .byte  0x3
  98   .quad  bar             # DW_AT_location [DW_FORM_exprloc]  (DW_OP_addr 0x0)
  99
 100   .uleb128 0x4           # DW_TAG_variable [2]
 101   .string  "zed"         # DW_AT_name [DW_FORM_string]  ("zed")
 102   .byte  0x1             # DW_AT_decl_file [DW_FORM_data1]  ("1.c")
 103   .byte  0x3             # DW_AT_decl_line [DW_FORM_data1]  (2)
 104   .long  0x32            # DW_AT_type [DW_FORM_ref4]  (cu + 0x0032 => {0x00000032})
 105   .quad  zed             # DW_AT_location [DW_FORM_exprloc]  (DW_OP_addr 0x0)
 106
 107   .byte  0               # END
 108
 109
 110 .section  .debug_abbrev,"",@progbits
 111   .uleb128 0x1   # Abbreviation code.
 112   .uleb128 0x11  # DW_TAG_compile_unit
 113
 114   .byte  0x1     # ID
 115   .uleb128 0x25  # DW_AT_producer, DW_FORM_strp
 116   .uleb128 0xe
 117   .uleb128 0x13  # DW_AT_language, DW_FORM_data1
 118   .uleb128 0xb
 119   .uleb128 0x3   # DW_AT_name, DW_FORM_string
 120   .uleb128 0x8
 121   .uleb128 0x1b  # DW_AT_comp_dir, DW_FORM_strp
 122   .uleb128 0xe
 123   .uleb128 0x10  # DW_AT_stmt_list, DW_FORM_sec_offset
 124   .uleb128 0x17
 125   .byte  0
 126   .byte  0
 127
 128   .uleb128 0x2  # ID
 129   .uleb128 0x34 # DW_TAG_variable, DW_CHILDREN_no
 130   .byte  0
 131   .uleb128 0x3  # DW_AT_name, DW_FORM_string
 132   .uleb128 0x8
 133   .uleb128 0x3a # DW_AT_decl_file, DW_FORM_data1
 134   .uleb128 0xb
 135   .uleb128 0x3b # DW_AT_decl_line, DW_FORM_data1
 136   .uleb128 0xb
 137   .uleb128 0x49 # DW_AT_type, DW_FORM_ref4
 138   .uleb128 0x13
 139   .uleb128 0x3f # DW_AT_external, DW_FORM_flag_present
 140   .uleb128 0x19
 141   .uleb128 0x2  # DW_AT_location, DW_FORM_exprloc
 142   .uleb128 0x18
 143   .byte  0
 144   .byte  0
 145
 146   .uleb128 0x3  # ID
 147   .uleb128 0x24 # DW_TAG_base_type, DW_CHILDREN_no
 148   .byte  0
 149   .uleb128 0xb  # DW_AT_byte_size, DW_FORM_data1
 150   .uleb128 0xb
 151   .uleb128 0x3e # DW_AT_encoding, DW_FORM_data1
 152   .uleb128 0xb
 153   .uleb128 0x3  # DW_AT_name, DW_FORM_string
 154   .uleb128 0x8
 155   .byte  0
 156   .byte  0
 157
 158   .uleb128 0x4  # ID
 159   .uleb128 0x34 # DW_TAG_variable, DW_CHILDREN_no
 160   .byte  0
 161   .uleb128 0x3  # DW_AT_name, DW_FORM_string
 162   .uleb128 0x8
 163   .uleb128 0x3a # DW_AT_decl_file, DW_FORM_data1
 164   .uleb128 0xb
 165   .uleb128 0x3b # DW_AT_decl_line, DW_FORM_data1
 166   .uleb128 0xb
 167   .uleb128 0x49 # DW_AT_type, DW_FORM_ref4
 168   .uleb128 0x13
 169   .uleb128 0x2  # DW_AT_location, DW_FORM_exprloc
 170   .uleb128 0x18
 171   .byte  0
 172   .byte  0
 173
 174   .byte  0