| # Test handling of (optimized-out/location-less) variables whose value is |
| # specified by DW_AT_const_value |
| |
| # REQUIRES: x86 |
| |
| # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux %s -o %t |
| # RUN: %lldb %t \ |
| # RUN: -o "target variable udata data1 data2 data4 data8 string strp ref4 udata_ptr" \ |
| # RUN: -o exit | FileCheck %s |
| |
| # CHECK-LABEL: target variable |
| ## Variable specified via DW_FORM_udata. This is typical for clang (10). |
| # CHECK: (unsigned long) udata = 4742474247424742 |
| ## Variables specified via fixed-size forms. This is typical for gcc (9). |
| # CHECK: (unsigned long) data1 = 47 |
| # CHECK: (unsigned long) data2 = 4742 |
| # CHECK: (unsigned long) data4 = 47424742 |
| # CHECK: (unsigned long) data8 = 4742474247424742 |
| ## Variables specified using string forms. This behavior purely speculative -- I |
| ## don't know of any compiler that would represent character strings this way. |
| # CHECK: (char [7]) string = "string" |
| # CHECK: (char [7]) strp = "strp" |
| ## Bogus attribute form. Let's make sure we don't crash at least. |
| # CHECK: (char [7]) ref4 = <empty constant data> |
| ## A variable of pointer type. |
| # CHECK: (unsigned long *) udata_ptr = 0xdeadbeefbaadf00d |
| |
| .section .debug_abbrev,"",@progbits |
| .byte 1 # Abbreviation Code |
| .byte 17 # DW_TAG_compile_unit |
| .byte 1 # DW_CHILDREN_yes |
| .byte 37 # DW_AT_producer |
| .byte 8 # DW_FORM_string |
| .byte 3 # DW_AT_name |
| .byte 8 # DW_FORM_string |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 2 # Abbreviation Code |
| .byte 15 # DW_TAG_pointer_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 4 # Abbreviation Code |
| .byte 1 # DW_TAG_array_type |
| .byte 1 # DW_CHILDREN_yes |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 5 # Abbreviation Code |
| .byte 33 # DW_TAG_subrange_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 55 # DW_AT_count |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 6 # Abbreviation Code |
| .byte 36 # DW_TAG_base_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 8 # DW_FORM_string |
| .byte 11 # DW_AT_byte_size |
| .byte 11 # DW_FORM_data1 |
| .byte 62 # DW_AT_encoding |
| .byte 11 # DW_FORM_data1 |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .macro var code, form |
| .byte \code # Abbreviation Code |
| .byte 52 # DW_TAG_variable |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 8 # DW_FORM_string |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 28 # DW_AT_const_value |
| .byte \form |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .endm |
| var 10, 0xf # DW_FORM_udata |
| var 11, 0xb # DW_FORM_data1 |
| var 12, 0x5 # DW_FORM_data2 |
| var 13, 0x6 # DW_FORM_data4 |
| var 14, 0x7 # DW_FORM_data8 |
| var 15, 0x8 # DW_FORM_string |
| var 16, 0xe # DW_FORM_strp |
| var 17, 0x13 # DW_FORM_ref4 |
| .byte 0 # EOM(3) |
| .section .debug_info,"",@progbits |
| .Lcu_begin0: |
| .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit |
| .Ldebug_info_start0: |
| .short 4 # DWARF version number |
| .long .debug_abbrev # Offset Into Abbrev. Section |
| .byte 8 # Address Size (in bytes) |
| .byte 1 # Abbrev DW_TAG_compile_unit |
| .asciz "Hand-written DWARF" # DW_AT_producer |
| .asciz "const.c" # DW_AT_name |
| .Lchar_arr: |
| .byte 4 # Abbrev DW_TAG_array_type |
| .long .Lchar-.Lcu_begin0 # DW_AT_type |
| .byte 5 # Abbrev DW_TAG_subrange_type |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| .byte 7 # DW_AT_count |
| .byte 0 # End Of Children Mark |
| .Lchar: |
| .byte 6 # Abbrev DW_TAG_base_type |
| .asciz "char" # DW_AT_name |
| .byte 1 # DW_AT_byte_size |
| .byte 6 # DW_AT_encoding |
| .Lulong: |
| .byte 6 # Abbrev DW_TAG_base_type |
| .asciz "unsigned long" # DW_AT_name |
| .byte 8 # DW_AT_byte_size |
| .byte 7 # DW_AT_encoding |
| .Lulong_ptr: |
| .byte 2 # Abbrev DW_TAG_pointer_type |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| |
| .byte 10 # Abbrev DW_TAG_variable |
| .asciz "udata" # DW_AT_name |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| .uleb128 4742474247424742 # DW_AT_const_value |
| |
| .byte 11 # Abbrev DW_TAG_variable |
| .asciz "data1" # DW_AT_name |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| .byte 47 # DW_AT_const_value |
| |
| .byte 12 # Abbrev DW_TAG_variable |
| .asciz "data2" # DW_AT_name |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| .word 4742 # DW_AT_const_value |
| |
| .byte 13 # Abbrev DW_TAG_variable |
| .asciz "data4" # DW_AT_name |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| .long 47424742 # DW_AT_const_value |
| |
| .byte 14 # Abbrev DW_TAG_variable |
| .asciz "data8" # DW_AT_name |
| .long .Lulong-.Lcu_begin0 # DW_AT_type |
| .quad 4742474247424742 # DW_AT_const_value |
| |
| .byte 15 # Abbrev DW_TAG_variable |
| .asciz "string" # DW_AT_name |
| .long .Lchar_arr-.Lcu_begin0 # DW_AT_type |
| .asciz "string" # DW_AT_const_value |
| |
| .byte 16 # Abbrev DW_TAG_variable |
| .asciz "strp" # DW_AT_name |
| .long .Lchar_arr-.Lcu_begin0 # DW_AT_type |
| .long .Lstrp # DW_AT_const_value |
| |
| .byte 17 # Abbrev DW_TAG_variable |
| .asciz "ref4" # DW_AT_name |
| .long .Lchar_arr-.Lcu_begin0 # DW_AT_type |
| .long .Lulong-.Lcu_begin0 # DW_AT_const_value |
| |
| .byte 10 # Abbrev DW_TAG_variable |
| .asciz "udata_ptr" # DW_AT_name |
| .long .Lulong_ptr-.Lcu_begin0 # DW_AT_type |
| .uleb128 0xdeadbeefbaadf00d # DW_AT_const_value |
| |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| |
| .section .debug_str,"MS",@progbits,1 |
| .Lstrp: |
| .asciz "strp" |
