mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
0b11ff752f
The directory and file tables now have form-based content descriptors. Parse these and extract the per-directory/file records based on the descriptors. For now we support only DW_FORM_string (inline) for the path names; follow-up work will add support for indirect forms (i.e., DW_FORM_strp, strx<N>, and line_strp). Differential Revision: http://reviews.llvm.org/D32713 llvm-svn: 301978
258 lines
8.5 KiB
ArmAsm
258 lines
8.5 KiB
ArmAsm
# Test object to verify dwarfdump handles v4 and v5 CU/TU/line headers.
|
|
# We have a representative set of units: v4 CU, v5 CU, v4 TU, v5 split TU.
|
|
# We have v4 and v5 line-table headers.
|
|
#
|
|
# To generate the test object:
|
|
# llvm-mc -triple x86_64-unknown-linux dwarfdump-header.s -filetype=obj \
|
|
# -o dwarfdump-header.elf-x86-64
|
|
|
|
.section .debug_str,"MS",@progbits,1
|
|
str_producer:
|
|
.asciz "Handmade DWARF producer"
|
|
str_CU_4:
|
|
.asciz "V4_compile_unit"
|
|
str_CU_5:
|
|
.asciz "V5_compile_unit"
|
|
str_TU_4:
|
|
.asciz "V4_type_unit"
|
|
|
|
.section .debug_str.dwo,"MS",@progbits,1
|
|
dwo_TU_5:
|
|
.asciz "V5_split_type_unit"
|
|
|
|
# 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 0x00 # DW_CHILDREN_no
|
|
.byte 0x25 # DW_AT_producer
|
|
.byte 0x0e # DW_FORM_strp
|
|
.byte 0x03 # DW_AT_name
|
|
.byte 0x0e # DW_FORM_strp
|
|
.byte 0x10 # DW_AT_stmt_list
|
|
.byte 0x17 # DW_FORM_sec_offset
|
|
.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 0x0e # DW_FORM_strp
|
|
.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 0x0e # DW_FORM_strp
|
|
.byte 0x00 # EOM(1)
|
|
.byte 0x00 # EOM(2)
|
|
.byte 0x00 # EOM(3)
|
|
|
|
# And a .dwo copy for the .dwo sections.
|
|
.section .debug_abbrev.dwo,"",@progbits
|
|
.byte 0x01 # Abbrev code
|
|
.byte 0x11 # DW_TAG_compile_unit
|
|
.byte 0x00 # DW_CHILDREN_no
|
|
.byte 0x25 # DW_AT_producer
|
|
.byte 0x0e # DW_FORM_strp
|
|
.byte 0x03 # DW_AT_name
|
|
.byte 0x0e # DW_FORM_strp
|
|
.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 0x0e # DW_FORM_strp
|
|
.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 0x0e # DW_FORM_strp
|
|
.byte 0x00 # EOM(1)
|
|
.byte 0x00 # EOM(2)
|
|
.byte 0x00 # EOM(3)
|
|
|
|
.section .debug_info,"",@progbits
|
|
|
|
# DWARF v4 CU header. V4 CU headers all look the same so we do only one.
|
|
.long CU_4_end-CU_4_version # Length of Unit
|
|
CU_4_version:
|
|
.short 4 # DWARF version number
|
|
.long .debug_abbrev # Offset Into Abbrev. Section
|
|
.byte 8 # Address Size (in bytes)
|
|
# The compile-unit DIE, with DW_AT_producer, DW_AT_name, DW_AT_stmt_list.
|
|
.byte 1
|
|
.long str_producer
|
|
.long str_CU_4
|
|
.long LH_4_start
|
|
.byte 0 # NULL
|
|
CU_4_end:
|
|
|
|
# DWARF v5 normal CU header.
|
|
.long CU_5_end-CU_5_version # Length of Unit
|
|
CU_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 DW_AT_producer, DW_AT_name, DW_AT_stmt_list.
|
|
.byte 1
|
|
.long str_producer
|
|
.long str_CU_5
|
|
.long LH_5_start
|
|
.byte 0 # NULL
|
|
CU_5_end:
|
|
|
|
.section .debug_types,"",@progbits
|
|
|
|
# DWARF v4 Type unit header. Normal/split are identical so we do only one.
|
|
TU_4_start:
|
|
.long TU_4_end-TU_4_version # Length of Unit
|
|
TU_4_version:
|
|
.short 4 # DWARF version number
|
|
.long .debug_abbrev # Offset Into Abbrev. Section
|
|
.byte 8 # Address Size (in bytes)
|
|
.quad 0x0011223344556677 # Type Signature
|
|
.long TU_4_type-TU_4_start # Type offset
|
|
# The type-unit DIE, which has a name.
|
|
.byte 2
|
|
.long str_TU_4
|
|
# The type DIE, which has a name.
|
|
TU_4_type:
|
|
.byte 3
|
|
.long str_TU_4
|
|
.byte 0 # NULL
|
|
.byte 0 # NULL
|
|
TU_4_end:
|
|
|
|
.section .debug_types.dwo,"",@progbits
|
|
# FIXME: DWARF v5 wants type units in .debug_info[.dwo] not .debug_types[.dwo].
|
|
|
|
# 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
|
|
.long dwo_TU_5
|
|
# The type DIE, which has a name.
|
|
TU_split_5_type:
|
|
.byte 3
|
|
.long dwo_TU_5
|
|
.byte 0 # NULL
|
|
.byte 0 # NULL
|
|
TU_split_5_end:
|
|
|
|
.section .debug_line,"",@progbits
|
|
# DWARF v4 line-table header.
|
|
LH_4_start:
|
|
.long LH_4_end-LH_4_version # Length of Unit
|
|
LH_4_version:
|
|
.short 4 # DWARF version number
|
|
.long LH_4_header_end-LH_4_params # Length of Prologue
|
|
LH_4_params:
|
|
.byte 1 # Minimum Instruction Length
|
|
.byte 1 # Maximum Operations per Instruction
|
|
.byte 1 # Default is_stmt
|
|
.byte -5 # Line Base
|
|
.byte 14 # Line Range
|
|
.byte 13 # Opcode Base
|
|
.byte 0 # Standard Opcode Lengths
|
|
.byte 1
|
|
.byte 1
|
|
.byte 1
|
|
.byte 1
|
|
.byte 0
|
|
.byte 0
|
|
.byte 0
|
|
.byte 1
|
|
.byte 0
|
|
.byte 0
|
|
.byte 1
|
|
# Directory table
|
|
.asciz "Directory4a"
|
|
.asciz "Directory4b"
|
|
.byte 0
|
|
# File table
|
|
.asciz "File4a" # File name 1
|
|
.byte 1 # Directory index 1
|
|
.byte 0x41 # Timestamp 1
|
|
.byte 0x42 # File Size 1
|
|
.asciz "File4b" # File name 2
|
|
.byte 0 # Directory index 2
|
|
.byte 0x43 # Timestamp 2
|
|
.byte 0x44 # File Size 2
|
|
.byte 0 # End of list
|
|
LH_4_header_end:
|
|
# Line number program, which is empty.
|
|
LH_4_end:
|
|
|
|
# DWARF v5 line-table header.
|
|
LH_5_start:
|
|
.long LH_5_end-LH_5_version # Length of Unit
|
|
LH_5_version:
|
|
.short 5 # DWARF version number
|
|
.byte 8 # Address Size
|
|
.byte 0 # Segment Selector Size
|
|
.long LH_5_header_end-LH_5_params # Length of Prologue
|
|
LH_5_params:
|
|
.byte 1 # Minimum Instruction Length
|
|
.byte 1 # Maximum Operations per Instruction
|
|
.byte 1 # Default is_stmt
|
|
.byte -5 # Line Base
|
|
.byte 14 # Line Range
|
|
.byte 13 # Opcode Base
|
|
.byte 0 # Standard Opcode Lengths
|
|
.byte 1
|
|
.byte 1
|
|
.byte 1
|
|
.byte 1
|
|
.byte 0
|
|
.byte 0
|
|
.byte 0
|
|
.byte 1
|
|
.byte 0
|
|
.byte 0
|
|
.byte 1
|
|
# Directory table format
|
|
.byte 1 # One element per directory entry
|
|
.byte 1 # DW_LNCT_path
|
|
.byte 0x08 # DW_FORM_string
|
|
# Directory table entries
|
|
.byte 2 # Two directories
|
|
.asciz "Directory5a"
|
|
.asciz "Directory5b"
|
|
# File table format
|
|
.byte 4 # Four elements per file entry
|
|
.byte 1 # DW_LNCT_path
|
|
.byte 0x08 # DW_FORM_string
|
|
.byte 2 # DW_LNCT_directory_index
|
|
.byte 0x0b # DW_FORM_data1
|
|
.byte 3 # DW_LNCT_timestamp
|
|
.byte 0x0f # DW_FORM_udata
|
|
.byte 4 # DW_LNCT_size
|
|
.byte 0x0f # DW_FORM_udata
|
|
# File table entries
|
|
.byte 2 # Two files
|
|
.asciz "File5a"
|
|
.byte 1
|
|
.byte 0x51
|
|
.byte 0x52
|
|
.asciz "File5b"
|
|
.byte 2
|
|
.byte 0x53
|
|
.byte 0x54
|
|
LH_5_header_end:
|
|
# Line number program, which is empty.
|
|
LH_5_end:
|