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03316a5291
In DWARF v5 the Line Number Program Header is extensible, allowing values with new content types. In this extension a content type is added, DW_LNCT_LLVM_source, which contains the embedded source code of the file. Add new optional attribute for !DIFile IR metadata called source which contains source text. Use this to output the source to the DWARF line table of code objects. Analogously extend METADATA_FILE in Bitcode and .file directive in ASM to support optional source. Teach llvm-dwarfdump and llvm-objdump about the new values. Update the output format of llvm-dwarfdump to make room for the new attribute on file_names entries, and support embedded sources for the -source option in llvm-objdump. Differential Revision: https://reviews.llvm.org/D42765 llvm-svn: 325970
158 lines
5.4 KiB
ArmAsm
158 lines
5.4 KiB
ArmAsm
# Test object to verify dwarfdump handles a DWARF-64 v5 line header.
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# FIXME: Make the other headers DWARF-64 also.
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# FIXME: Add variants for earlier DWARF versions.
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# Lines beginning with @ELF@ should be preserved for ELF targets;
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# lines beginning with @MACHO@ should be preserved for Mach-O targets.
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# RUN: sed -e 's/@ELF@//;s/@MACHO@.*//' %s | \
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# RUN: llvm-mc -triple x86_64-unknown-linux -filetype=obj -o - | \
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# RUN: llvm-dwarfdump -v - | FileCheck %s
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# RUN: sed -e 's/@ELF@.*//;s/@MACHO@//' %s | \
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# RUN: llvm-mc -triple x86_64-apple-darwin -filetype=obj -o - | \
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# RUN: llvm-dwarfdump -v - | FileCheck %s
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@ELF@ .section .debug_str,"MS",@progbits,1
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@MACHO@ .section __DWARF,__debug_str,regular,debug
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str_producer:
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.asciz "Handmade DWARF producer"
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str_CU_5:
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.asciz "V5_compile_unit"
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str_LT_5a:
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.asciz "Directory5a"
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str_LT_5b:
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.asciz "Directory5b"
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@ELF@ .section .debug_abbrev,"",@progbits
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@MACHO@ .section __DWARF,__debug_abbrev,regular,debug
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abbrev:
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.byte 0x01 # Abbrev code
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.byte 0x11 # DW_TAG_compile_unit
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.byte 0x00 # DW_CHILDREN_no
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.byte 0x25 # DW_AT_producer
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.byte 0x0e # DW_FORM_strp
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.byte 0x03 # DW_AT_name
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.byte 0x0e # DW_FORM_strp
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.byte 0x10 # DW_AT_stmt_list
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.byte 0x17 # DW_FORM_sec_offset
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.byte 0x00 # EOM(1)
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.byte 0x00 # EOM(2)
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@ELF@ .section .debug_info,"",@progbits
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@MACHO@ .section __DWARF,__debug_info,regular,debug
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# DWARF-32 v5 normal CU header.
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Lset0 = CU_5_end-CU_5_version # Length of Unit
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.long Lset0
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CU_5_version:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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@ELF@ .long abbrev # Offset Into Abbrev. Section
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@MACHO@ .long 0
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# The compile-unit DIE, with DW_AT_producer, DW_AT_name, DW_AT_stmt_list.
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.byte 1
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.long str_producer
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.long str_CU_5
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@ELF@ .long LH_5_start
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@MACHO@ .long 0
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.byte 0 # NULL
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CU_5_end:
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# CHECK-LABEL: .debug_info contents:
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# CHECK: 0x00000000: Compile Unit: length = 0x00000016 version = 0x0005 unit_type = DW_UT_compile abbr_offset = 0x0000 addr_size = 0x08 (next unit at 0x0000001a)
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# CHECK: 0x0000000c: DW_TAG_compile_unit
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# CHECK-NEXT: DW_AT_producer {{.*}} "Handmade DWARF producer"
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# CHECK-NEXT: DW_AT_name {{.*}} "V5_compile_unit"
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# CHECK-NEXT: DW_AT_stmt_list {{.*}} (0x00000000)
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@ELF@ .section .debug_line,"",@progbits
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@MACHO@ .section __DWARF,__debug_line,regular,debug
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# DWARF-64 v5 line-table header.
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LH_5_start:
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.long -1
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Lset1 = LH_5_end-LH_5_version # Length of Unit
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.quad Lset1
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LH_5_version:
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.short 5 # DWARF version number
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.byte 8 # Address Size
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.byte 0 # Segment Selector Size
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Lset2 = LH_5_header_end-LH_5_params # Length of Prologue
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.quad Lset2
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LH_5_params:
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.byte 1 # Minimum Instruction Length
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.byte 1 # Maximum Operations per Instruction
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.byte 1 # Default is_stmt
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.byte -5 # Line Base
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.byte 14 # Line Range
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.byte 13 # Opcode Base
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.byte 0 # Standard Opcode Lengths
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.byte 1
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.byte 1
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.byte 1
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.byte 1
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.byte 0
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.byte 0
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.byte 0
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.byte 1
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.byte 0
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.byte 0
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.byte 1
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# Directory table format
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.byte 1 # One element per directory entry
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.byte 1 # DW_LNCT_path
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.byte 0x0e # DW_FORM_strp (-> .debug_str)
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# Directory table entries
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.byte 2 # Two directories
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.quad str_LT_5a
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.quad str_LT_5b
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# File table format
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.byte 4 # Four elements per file entry
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.byte 1 # DW_LNCT_path
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.byte 0x08 # DW_FORM_string
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.byte 2 # DW_LNCT_directory_index
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.byte 0x0b # DW_FORM_data1
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.byte 3 # DW_LNCT_timestamp
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.byte 0x0f # DW_FORM_udata
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.byte 4 # DW_LNCT_size
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.byte 0x0f # DW_FORM_udata
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# File table entries
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.byte 2 # Two files
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.asciz "File5a"
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.byte 0
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.byte 0x51
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.byte 0x52
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.asciz "File5b"
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.byte 1
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.byte 0x53
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.byte 0x54
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LH_5_header_end:
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# Line number program, which is empty.
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LH_5_end:
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# CHECK-LABEL: .debug_line contents:
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# CHECK: Line table prologue:
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# CHECK: total_length: 0x00000050
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# CHECK: version: 5
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# CHECK: address_size: 8
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# CHECK: seg_select_size: 0
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# CHECK: prologue_length: 0x00000044
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# CHECK: max_ops_per_inst: 1
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# CHECK: include_directories[ 0] = .debug_str[0x00000028] = "Directory5a"
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# CHECK: include_directories[ 1] = .debug_str[0x00000034] = "Directory5b"
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# CHECK-NOT: include_directories
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# CHECK: file_names[ 0]:
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# CHECK-NEXT: name: "File5a"
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# CHECK-NEXT: dir_index: 0
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# CHECK-NEXT: mod_time: 0x00000051
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# CHECK-NEXT: length: 0x00000052
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# CHECK: file_names[ 1]:
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# CHECK-NEXT: name: "File5b"
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# CHECK-NEXT: dir_index: 1
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# CHECK-NEXT: mod_time: 0x00000053
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# CHECK-NEXT: length: 0x00000054
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# CHECK-NOT: file_names
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