| // 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) |
