// RUN: llvm-mc %s -defsym ALIGN_4=1 -save-temp-labels -filetype obj -triple arm-none-eabi -o %t.o
// RUN: llvm-nm %t.o | FileCheck %s --check-prefix=L4
// RUN: llvm-dwarfdump -debug-line %t.o 2>&1 | FileCheck %s --implicit-check-not='warning:' --check-prefix=MULT4
// RUN: llvm-mc %s -defsym ALIGN_8=1 -save-temp-labels -filetype obj -triple arm-none-eabi -o %t.o
// RUN: llvm-nm %t.o | FileCheck %s --check-prefix=L8
// RUN: llvm-dwarfdump -debug-line %t.o 2>&1 | FileCheck %s --implicit-check-not='warning:' --check-prefix=MULT8
// RUN: llvm-mc %s -defsym UNALIGNED_PADDING=1 -save-temp-labels -filetype obj -triple arm-none-eabi -o %t.o
// RUN: llvm-nm %t.o | FileCheck %s --check-prefix=LUNALIGN
// RUN: llvm-dwarfdump -debug-line %t.o 2>&1 | FileCheck %s --check-prefix=UNALIGN
/// This test is based on a real example from ARM C/C++ Compiler.
/// It verifies llvm-dwarfdump is able to dump line tables even if they've been
/// placed at aligned offsets.
// L4: 0000002b N .Ltable0_end
// MULT4: Address Line Column File ISA Discriminator OpIndex Flags
// MULT4-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
// MULT4-NEXT: 0x0000000000000000 1 0 1 0 0 0 is_stmt end_sequence
// MULT4-EMPTY:
// MULT4-NEXT: debug_line[0x0000002c]
// MULT4-NEXT: Line table prologue:
// MULT4-NEXT: total_length: 0x0000003a{{$}}
// MULT4-NEXT: format: DWARF32
// MULT4-NEXT: version: 2{{$}}
// MULT4-NEXT: prologue_length: 0x0000001a
// MULT4-NEXT: min_inst_length: 2
// MULT4-NEXT: default_is_stmt: 1
// L8: 00000027 N .Ltable0_end
// MULT8: Address Line Column File ISA Discriminator OpIndex Flags
// MULT8-NEXT: ------------------ ------ ------ ------ --- ------------- ------- -------------
// MULT8-NEXT: 0x0000000000000000 1 0 1 0 0 0 is_stmt end_sequence
// MULT8-EMPTY:
// MULT8-NEXT: debug_line[0x00000028]
// MULT8-NEXT: Line table prologue:
// MULT8-NEXT: total_length: 0x0000003a{{$}}
// MULT8-NEXT: format: DWARF32
// MULT8-NEXT: version: 2{{$}}
// MULT8-NEXT: prologue_length: 0x0000001a
// MULT8-NEXT: min_inst_length: 2
// MULT8-NEXT: default_is_stmt: 1
/// This should fail to dump:
// LUNALIGN: 00000027 N .Ltable0_end
// UNALIGN: warning: parsing line table prologue at offset 0x00000027: unsupported version
.section .debug_line
/// First line table
/// Unit total length:
.long .Ltable0_end - .Ltable0_start
.Ltable0_start:
.short 2 /// Version
/// Header length:
.long .Ltable0_header_end - .Ltable0_header_start
.Ltable0_header_start:
.byte 4 /// Min instruction length
.byte 1 /// Max operations per instruction
.byte 0 /// Default is statement
.byte 6 /// Line range
.byte 10 /// Opcode base
.byte 0 /// standard_opcode_lengths[DW_LNS_copy] = 0
.byte 1 /// standard_opcode_lengths[DW_LNS_advance_pc] = 1
.byte 1 /// standard_opcode_lengths[DW_LNS_advance_line] = 1
.byte 1 /// standard_opcode_lengths[DW_LNS_set_file] = 1
.byte 1 /// standard_opcode_lengths[DW_LNS_set_column] = 1
.byte 0 /// standard_opcode_lengths[DW_LNS_negate_stmt] = 0
.byte 0 /// standard_opcode_lengths[DW_LNS_set_basic_block] = 0
.byte 0 /// standard_opcode_lengths[DW_LNS_const_add_pc] = 0
.byte 0 /// standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 0
.byte 0 /// No include directories
/// File name:
.ifdef ALIGN_4
/// Pad out filename so next 4 byte aligned offset is a multiple of 4 and not 8.
.asciz "foobar.cpp"
.else
.asciz "test.c"
.endif
.byte 0 /// Dir idx
.byte 0 /// Mod time
.byte 0 /// Length
.byte 0 /// End files
.Ltable0_header_end:
/// Line table operations
.byte 0 /// Extended opcode
.byte 1 /// Length 1
.byte 1 /// DW_LNE_end_sequence
.Ltable0_end:
/// End first line table
/// Padding:
.ifdef UNALIGNED_PADDING
.short 0
.else
.byte 0
.endif
/// Second line table
/// Unit total length:
.long .Ltable1_end - .Ltable1_start
.Ltable1_start:
.short 2 /// Version
/// Header length:
.long .Ltable1_header_end - .Ltable1_header_start
.Ltable1_header_start:
.byte 2 /// Min instruction length
.byte 1 /// Max operations per instruction
.byte 0 /// Default is statement
.byte 6 /// Line range
.byte 10 /// Opcode base
.byte 0 /// standard_opcode_lengths[DW_LNS_copy] = 0
.byte 1 /// standard_opcode_lengths[DW_LNS_advance_pc] = 1
.byte 1 /// standard_opcode_lengths[DW_LNS_advance_line] = 1
.byte 1 /// standard_opcode_lengths[DW_LNS_set_file] = 1
.byte 1 /// standard_opcode_lengths[DW_LNS_set_column] = 1
.byte 0 /// standard_opcode_lengths[DW_LNS_negate_stmt] = 0
.byte 0 /// standard_opcode_lengths[DW_LNS_set_basic_block] = 0
.byte 0 /// standard_opcode_lengths[DW_LNS_const_add_pc] = 0
.byte 0 /// standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 0
.byte 0 /// No include directories
.asciz "test.c" /// File name
.byte 0 /// Dir idx
.byte 0 /// Mod time
.byte 0 /// Length
.byte 0 /// End files
.Ltable1_header_end:
/// Line table operations
.byte 4 /// DW_LNS_set_file
.byte 1 /// File 1
.byte 5 /// DW_LNS_set_column
.byte 1 /// Column 1
.byte 0 /// Extended opcode
.byte 5 /// Length 5
.byte 2 /// DW_LNE_set_address
.long 32896 /// Address = 0x00008080
.byte 3 /// DW_LNS_advance_line
.byte 6 /// Line += 6
.byte 1 /// DW_LNS_copy
.byte 5 /// DW_LNS_set_column
.byte 2 /// Column 2
.byte 12 /// Special opcode (address += 0, line += 2)
.byte 30 /// Special opcode (address += 6, line += 2)
.byte 5 /// DW_LNS_set_column
.byte 1 /// Column 1
.byte 17 /// Special opcode (address += 2, line += 1)
.byte 2 /// DW_LNS_advance_pc
.byte 4 /// += (4 * min instruction length)
.byte 0 /// Extended opcode
.byte 1 /// Length 1
.byte 1 /// DW_LNE_end_sequence
.Ltable1_end:
/// End second line table
.short 0 /// Padding (to make section a word multiple)
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