dwarfdump-str-offsets.s
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# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
# RUN: llvm-dwarfdump -v %t.o 2> %t.err | FileCheck --check-prefix=COMMON --check-prefix=SPLIT %s
# RUN: llvm-dwarfdump -verify %t.o | FileCheck --check-prefix=VERIFY %s
#
# Check that we don't report an error on a non-existent range list table.
# RUN: FileCheck -allow-empty --check-prefix ERR %s < %t.err
# Test object to verify dwarfdump handles v5 string offset tables.
# We have 2 v5 CUs, a v5 TU, and a split v5 CU and TU.
#
.section .debug_str,"MS",@progbits,1
str_producer:
.asciz "Handmade DWARF producer"
str_CU1:
.asciz "Compile_Unit_1"
str_CU1_dir:
.asciz "/home/test/CU1"
str_CU2:
.asciz "Compile_Unit_2"
str_CU2_dir:
.asciz "/home/test/CU2"
str_TU:
.asciz "Type_Unit"
str_TU_type:
.asciz "MyStruct"
str_Subprogram:
.asciz "MyFunc"
str_Variable1:
.asciz "MyVar1"
str_Variable2:
.asciz "MyVar2"
str_Variable3:
.asciz "MyVar3"
# Every unit contributes to the string_offsets table.
.section .debug_str_offsets,"",@progbits
# CU1's contribution
.long .debug_str_offsets_segment0_end-.debug_str_offsets_base0+4
.short 5 # DWARF version
.short 0 # Padding
.debug_str_offsets_base0:
.long str_producer
.long str_CU1
.long str_CU1_dir
.long str_Subprogram
.long str_Variable1
.long str_Variable2
.long str_Variable3
.debug_str_offsets_segment0_end:
# A 4-byte gap.
.long 0
# CU2's contribution in DWARF64 format
.long 0xffffffff
.quad .debug_str_offsets_segment1_end-.debug_str_offsets_base1+4
.short 5 # DWARF version
.short 0 # Padding
.debug_str_offsets_base1:
.quad str_producer
.quad str_CU2
.quad str_CU2_dir
.debug_str_offsets_segment1_end:
# The TU's contribution
.long .debug_str_offsets_segment2_end-.debug_str_offsets_base2+4
.short 5 # DWARF version
.short 0 # Padding
.debug_str_offsets_base2:
.long str_TU
.long str_TU_type
.debug_str_offsets_segment2_end:
.section .debug_str.dwo,"MSe",@progbits,1
dwo_str_CU_5_producer:
.asciz "Handmade split DWARF producer"
dwo_str_CU_5_name:
.asciz "V5_split_compile_unit"
dwo_str_CU_5_comp_dir:
.asciz "/home/test/splitCU"
dwo_str_TU_5:
.asciz "V5_split_type_unit"
dwo_str_TU_5_type:
.asciz "V5_split_Mystruct"
.section .debug_str_offsets.dwo,"e",@progbits
# One contribution only in a .dwo file
.long .debug_dwo_str_offsets_segment0_end-.debug_dwo_str_offsets_base0+4
.short 5 # DWARF version
.short 0 # Padding
.debug_dwo_str_offsets_base0:
.long dwo_str_CU_5_producer-.debug_str.dwo
.long dwo_str_CU_5_name-.debug_str.dwo
.long dwo_str_CU_5_comp_dir-.debug_str.dwo
.long dwo_str_TU_5-.debug_str.dwo
.long dwo_str_TU_5_type-.debug_str.dwo
.debug_dwo_str_offsets_segment0_end:
# All CUs/TUs use the same abbrev section for simplicity.
.section .debug_abbrev,"",@progbits
.byte 0x01 # Abbrev code
.byte 0x11 # DW_TAG_compile_unit
.byte 0x01 # DW_CHILDREN_yes
.byte 0x25 # DW_AT_producer
.byte 0x1a # DW_FORM_strx
.byte 0x03 # DW_AT_name
.byte 0x1a # DW_FORM_strx
.byte 0x72 # DW_AT_str_offsets_base
.byte 0x17 # DW_FORM_sec_offset
.byte 0x1b # DW_AT_comp_dir
.byte 0x1a # DW_FORM_strx
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x02 # Abbrev code
.byte 0x41 # DW_TAG_type_unit
.byte 0x01 # DW_CHILDREN_yes
.byte 0x03 # DW_AT_name
.byte 0x1a # DW_FORM_strx
.byte 0x72 # DW_AT_str_offsets_base
.byte 0x17 # DW_FORM_sec_offset
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x03 # Abbrev code
.byte 0x13 # DW_TAG_structure_type
.byte 0x00 # DW_CHILDREN_no (no members)
.byte 0x03 # DW_AT_name
.byte 0x1a # DW_FORM_strx
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x04 # Abbrev code
.byte 0x2e # DW_TAG_subprogram
.byte 0x01 # DW_CHILDREN_yes
.byte 0x03 # DW_AT_name
.byte 0x25 # DW_FORM_strx1
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x05 # Abbrev code
.byte 0x34 # DW_TAG_variable
.byte 0x00 # DW_CHILDREN_no
.byte 0x03 # DW_AT_name
.byte 0x26 # DW_FORM_strx2
.byte 0x49 # DW_AT_type
.byte 0x13 # DW_FORM_ref4
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x06 # Abbrev code
.byte 0x34 # DW_TAG_variable
.byte 0x00 # DW_CHILDREN_no
.byte 0x03 # DW_AT_name
.byte 0x27 # DW_FORM_strx3
.byte 0x49 # DW_AT_type
.byte 0x13 # DW_FORM_ref4
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x07 # Abbrev code
.byte 0x34 # DW_TAG_variable
.byte 0x00 # DW_CHILDREN_no
.byte 0x03 # DW_AT_name
.byte 0x28 # DW_FORM_strx4
.byte 0x49 # DW_AT_type
.byte 0x13 # DW_FORM_ref4
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x08 # Abbrev code
.byte 0x24 # DW_TAG_base_type
.byte 0x00 # DW_CHILDREN_no
.byte 0x3e # DW_AT_encoding
.byte 0x0b # DW_FORM_data1
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x09 # Abbrev code
.byte 0x11 # DW_TAG_compile_unit
.byte 0x00 # DW_CHILDREN_no
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x00 # EOM(3)
# And a .dwo copy of a subset for the .dwo sections.
.section .debug_abbrev.dwo,"e",@progbits
.byte 0x01 # Abbrev code
.byte 0x11 # DW_TAG_compile_unit
.byte 0x00 # DW_CHILDREN_no
.byte 0x25 # DW_AT_producer
.byte 0x1a # DW_FORM_strx
.byte 0x03 # DW_AT_name
.byte 0x1a # DW_FORM_strx
.byte 0x1b # DW_AT_comp_dir
.byte 0x1a # DW_FORM_strx
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x02 # Abbrev code
.byte 0x41 # DW_TAG_type_unit
.byte 0x01 # DW_CHILDREN_yes
.byte 0x03 # DW_AT_name
.byte 0x1a # DW_FORM_strx
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x03 # Abbrev code
.byte 0x13 # DW_TAG_structure_type
.byte 0x00 # DW_CHILDREN_no (no members)
.byte 0x03 # DW_AT_name
.byte 0x1a # DW_FORM_strx
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.byte 0x00 # EOM(3)
.section .debug_info,"",@progbits
# DWARF v5 CU header.
.long CU1_5_end-CU1_5_version # Length of Unit
CU1_5_version:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
# The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
# DW_AT_str_offsets and DW_AT_compdir.
.byte 1 # Abbreviation code
.byte 0 # The index of the producer string
.byte 1 # The index of the CU name string
.long .debug_str_offsets_base0
.byte 2 # The index of the comp dir string
# A subprogram DIE with DW_AT_name, using DW_FORM_strx1.
.byte 4 # Abbreviation code
.byte 3 # Subprogram name string (DW_FORM_strx1)
# A variable DIE with DW_AT_name, using DW_FORM_strx2, and DW_AT_type.
.byte 5 # Abbreviation code
.short 0x0004 # Subprogram name string (DW_FORM_strx2)
.long TypeDie-.debug_info
# A variable DIE with DW_AT_name, using DW_FORM_strx3, and DW_AT_type.
.byte 6 # Abbreviation code
.byte 5 # Subprogram name string (DW_FORM_strx3)
.short 0 # Subprogram name string (DW_FORM_strx3)
.long TypeDie-.debug_info
# A variable DIE with DW_AT_name, using DW_FORM_strx4, and DW_AT_type.
.byte 7 # Abbreviation code
.long 6 # Subprogram name string (DW_FORM_strx4)
.long TypeDie-.debug_info
.byte 0 # NULL
# A base type DIE with DW_AT_encoding.
TypeDie:
.byte 8 # Abbreviation code
.byte 5 # DW_ATE_signed
.byte 0 # NULL
.byte 0 # NULL
CU1_5_end:
# DWARF v5 CU header
.long 0xffffffff
.quad CU2_5_end-CU2_5_version # Length of Unit
CU2_5_version:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.quad .debug_abbrev # Offset Into Abbrev. Section
# The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
# DW_AT_str_offsets and DW_AT_compdir.
.byte 1 # Abbreviation code
.byte 0 # The index of the producer string
.byte 1 # The index of the CU name string
.quad .debug_str_offsets_base1
.byte 2 # The index of the comp dir string
.byte 0 # NULL
CU2_5_end:
# DWARF v5 CU without str_offsets_base - this shouldn't produce an error/nor
# prevent other str_offsets contributions from being dumped.
.long CU3_5_end-CU3_5_version # Length of Unit
CU3_5_version:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
# The compile-unit DIE with no attributes.
.byte 9 # Abbreviation code
CU3_5_end:
.section .debug_types,"",@progbits
# DWARF v5 Type unit header.
TU_5_start:
.long TU_5_end-TU_5_version # Length of Unit
TU_5_version:
.short 5 # DWARF version number
.byte 2 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev # Offset Into Abbrev. Section
.quad 0x0011223344556677 # Type Signature
.long TU_5_type-TU_5_start # Type offset
# The type-unit DIE, which has a name.
.byte 2 # Abbreviation code
.byte 0 # Index of the unit type name string
.long .debug_str_offsets_base2 # offset into the str_offsets section
# The type DIE, which has a name.
TU_5_type:
.byte 3 # Abbreviation code
.byte 1 # Index of the type name string
.byte 0 # NULL
.byte 0 # NULL
TU_5_end:
.section .debug_info.dwo,"e",@progbits
# DWARF v5 split CU header.
.long CU_split_5_end-CU_split_5_version # Length of Unit
CU_split_5_version:
.short 5 # DWARF version number
.byte 1 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev.dwo # Offset Into Abbrev Section
# The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
# DW_AT_str_offsets and DW_AT_compdir.
.byte 1 # Abbreviation code
.byte 0 # The index of the producer string
.byte 1 # The index of the CU name string
.byte 2 # The index of the comp dir string
.byte 0 # NULL
CU_split_5_end:
.section .debug_types.dwo,"e",@progbits
# DWARF v5 split type unit header.
TU_split_5_start:
.long TU_split_5_end-TU_split_5_version # Length of Unit
TU_split_5_version:
.short 5 # DWARF version number
.byte 6 # DWARF Unit Type
.byte 8 # Address Size (in bytes)
.long .debug_abbrev.dwo # Offset Into Abbrev Section
.quad 0x8899aabbccddeeff # Type Signature
.long TU_split_5_type-TU_split_5_start # Type offset
# The type-unit DIE, which has a name.
.byte 2 # Abbreviation code
.byte 3 # The index of the type unit name string
# The type DIE, which has a name.
TU_split_5_type:
.byte 3 # Abbreviation code
.byte 4 # The index of the type name string
.byte 0 # NULL
.byte 0 # NULL
TU_split_5_end:
# We are using a hand-constructed object file and are interest in the correct
# diplay of the DW_str_offsetsbase attribute, the correct display of strings
# and the dump of the .debug_str_offsets[.dwo] table.
# Abbreviation for DW_AT_str_offsets_base
# COMMON: .debug_abbrev contents:
# COMMON-NOT: contents:
# COMMON: DW_TAG_compile_unit
# COMMON-NOT: DW_TAG
# COMMON: DW_AT_str_offsets_base DW_FORM_sec_offset
#
# Verify that strings are displayed correctly as indexed strings
# COMMON: .debug_info contents:
# COMMON-NOT: contents:
# COMMON: DW_TAG_compile_unit
# COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
# COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_1")
# COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
# COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU1")
# COMMON-NOT: NULL
# COMMON: DW_TAG_subprogram
# COMMON-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000003) string = "MyFunc")
# COMMON-NOT: NULL
# COMMON: DW_TAG_variable
# COMMON-NEXT: DW_AT_name [DW_FORM_strx2] (indexed (00000004) string = "MyVar1")
# COMMON-NOT: NULL
# COMMON: DW_TAG_variable
# COMMON-NEXT: DW_AT_name [DW_FORM_strx3] (indexed (00000005) string = "MyVar2")
# COMMON-NOT: NULL
# COMMON: DW_TAG_variable
# COMMON-NEXT: DW_AT_name [DW_FORM_strx4] (indexed (00000006) string = "MyVar3")
#
# Second compile unit (b.cpp)
# COMMON: DW_TAG_compile_unit
# COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
# COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_2")
# COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000000000000038)
# COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU2")
#
# The split CU
# SPLIT: .debug_info.dwo contents:
# SPLIT-NOT: contents:
# SPLIT: DW_TAG_compile_unit
# SPLIT-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade split DWARF producer")
# SPLIT-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "V5_split_compile_unit")
# SPLIT-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/splitCU")
#
# The type unit
# COMMON: .debug_types contents:
# COMMON: DW_TAG_type_unit
# COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000000) string = "Type_Unit")
# COMMON: DW_TAG_structure_type
# COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "MyStruct")
#
# The split type unit
# SPLIT: .debug_types.dwo contents:
# SPLIT: DW_TAG_type_unit
# SPLIT-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000003) string = "V5_split_type_unit")
# SPLIT: DW_TAG_structure_type
# SPLIT-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000004) string = "V5_split_Mystruct")
#
# The .debug_str_offsets section
# COMMON: .debug_str_offsets contents:
# COMMON-NEXT: 0x00000000: Contribution size = 32, Format = DWARF32, Version = 5
# COMMON-NEXT: 0x00000008: 00000000 "Handmade DWARF producer"
# COMMON-NEXT: 0x0000000c: 00000018 "Compile_Unit_1"
# COMMON-NEXT: 0x00000010: 00000027 "/home/test/CU1"
# COMMON-NEXT: 0x00000014: 00000067 "MyFunc"
# COMMON-NEXT: 0x00000018: 0000006e "MyVar1"
# COMMON-NEXT: 0x0000001c: 00000075 "MyVar2"
# COMMON-NEXT: 0x00000020: 0000007c "MyVar3"
# COMMON-NEXT: Gap, length = 4
# COMMON-NEXT: 0x00000028: Contribution size = 28, Format = DWARF64, Version = 5
# COMMON-NEXT: 0x00000038: 0000000000000000 "Handmade DWARF producer"
# COMMON-NEXT: 0x00000040: 0000000000000036 "Compile_Unit_2"
# COMMON-NEXT: 0x00000048: 0000000000000045 "/home/test/CU2"
# COMMON-NEXT: 0x00000050: Contribution size = 12, Format = DWARF32, Version = 5
# COMMON-NEXT: 0x00000058: 00000054 "Type_Unit"
# COMMON-NEXT: 0x0000005c: 0000005e "MyStruct"
#
# SPLIT: .debug_str_offsets.dwo contents:
# SPLIT-NEXT: 0x00000000: Contribution size = 24, Format = DWARF32, Version = 5
# SPLIT-NEXT: 0x00000008: 00000000 "Handmade split DWARF producer"
# SPLIT-NEXT: 0x0000000c: 0000001e "V5_split_compile_unit"
# SPLIT-NEXT: 0x00000010: 00000034 "/home/test/splitCU"
# SPLIT-NEXT: 0x00000014: 00000047 "V5_split_type_unit"
# SPLIT-NEXT: 0x00000018: 0000005a "V5_split_Mystruct"
# VERIFY: No errors.
# ERR-NOT: parsing a range list table: