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# Test handling of (optimized-out/location-less) variables whose value is
# specified by DW_AT_const_value
# 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"
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