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# Test object to verify dwarfdump handles a syntactically correct line-number
# program containing unrecognized extended opcodes.
# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
# RUN: llvm-dwarfdump -v %t.o | FileCheck %s
# RUN: llvm-dwarfdump -v %t.o 2>&1 | FileCheck %s --check-prefix=ERR
.section .text
# Dummy function
foo: ret
# FIXME: When we can dump a line-table without a unit, we could remove
# the .debug_abbrev and .debug_info sections from this test.
.section .debug_abbrev,"",@progbits
.byte 0x01 # Abbrev code
.byte 0x11 # DW_TAG_compile_unit
.byte 0x00 # DW_CHILDREN_no
.byte 0x10 # DW_AT_stmt_list
.byte 0x17 # DW_FORM_sec_offset
.byte 0x00 # EOM(1)
.byte 0x00 # EOM(2)
.section .debug_info,"",@progbits
.long CU_end-CU_version # Length of Unit
CU_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_stmt_list.
.byte 1
.long LT_start
.byte 0 # NULL
CU_end:
.long CU2_end-CU2_version # Length of Unit
CU2_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_stmt_list.
.byte 1
.long LT2_start
.byte 0 # NULL
CU2_end:
.section .debug_line,"",@progbits
# CHECK-LABEL: .debug_line contents:
# DWARF v4 line-table header.
LT_start:
.long LT_end-LT_version # Length of Unit (DWARF-32 format)
LT_version:
.short 4 # DWARF version number
.long LT_header_end-LT_params # Length of Prologue
LT_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
# No directories.
.byte 0
# No files.
.byte 0
LT_header_end:
# Bogus extended opcode with zero length.
.byte 0 # Extended opcode indicator.
.byte 0 # LEB length of extended opcode + operands.
# Real opcode and operand.
.byte 0
.byte 9
.byte 2 # DW_LNE_set_address
.quad .text
# Bogus extended opcode with multibyte LEB length.
.byte 0
.byte 0x82 # Length of 2 but with additional length byte.
.byte 0 # Additional length byte.
.byte 0x47 # Unrecognized opcode...
.byte 0 # with its 1-byte operand.
# Proper end-sequence opcode.
.byte 0
.byte 1
.byte 1 # DW_LNE_end_sequence
LT_end:
# CHECK: Line table prologue:
# CHECK: version: 4
# Exact prologue length isn't important but it tells us where to expect the
# line-number program to start, and we do want to verify those offsets.
# CHECK-NEXT: prologue_length: 0x00000014
# CHECK: 0x0000001e: 00 Badly formed extended line op
# CHECK-NEXT: 0x00000020: 00 DW_LNE_set_address
# CHECK-NEXT: 0x0000002b: 00 Unrecognized extended op 0x47 length 2
# CHECK-NEXT: 0x00000030: 00 DW_LNE_end_sequence
# CHECK-NEXT: 0x0000000000000000 {{.*}} is_stmt end_sequence
# DWARF v4 line-table header #2.
LT2_start:
.long LT2_end-LT2_version # Length of Unit (DWARF-32 format)
LT2_version:
.short 4 # DWARF version number
.long LT2_header_end-LT2_params # Length of Prologue
LT2_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
# No directories.
.byte 0
# No files.
.byte 0
LT2_header_end:
# Real opcode and operand.
.byte 0
.byte 9
.byte 2 # DW_LNE_set_address
.quad .text
# Real opcode with incorrect length.
.byte 0
.byte 2 # Wrong length, should be 1.
.byte 1 # DW_LNE_end_sequence
LT2_end:
# ERR: warning: unexpected line op length at offset 0x0000005e
# ERR-SAME: expected 0x02 found 0x01
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