# 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: