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4e33537215
Summary: This commit renames DWARFAcceleratorTable to AppleAcceleratorTable to free up the first name as an interface for the different accelerator tables. Then I add a DWARFDebugNames class for the dwarf5 table. Presently, the only common functionality of the two classes is the dump() method, because this is the only method that was necessary to implement dwarfdump -debug-names; and because the rest of the AppleAcceleratorTable interface does not directly transfer to the dwarf5 tables (the main reason for that is that the present interface assumes the tables are homogeneous, but the dwarf5 tables can have different keys associated with each entry). I expect to make the common interface richer as I add more functionality to the new class (and invent a way to represent it in generic way). In terms of sharing the implementation, I found the format of the two tables sufficiently different to frustrate any attempts to have common parsing or dumping code, so presently the implementations share just low level code for formatting dwarf constants. Reviewers: vleschuk, JDevlieghere, clayborg, aprantl, probinson, echristo, dblaikie Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D42297 llvm-svn: 323638
177 lines
6.2 KiB
ArmAsm
177 lines
6.2 KiB
ArmAsm
# RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj -o - | llvm-dwarfdump -debug-names - | FileCheck %s
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "foo"
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.Linfo_string1:
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.asciz "_Z3foov"
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.Linfo_string2:
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.asciz "bar"
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# Fake .debug_info. We just need it for the offsets to two "compile units" and
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# two "DIEs"
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.section .debug_info,"",@progbits
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.Lcu_begin0:
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.byte 0
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.Ldie0:
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.byte 0
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.Lcu_begin1:
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.byte 0
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.Ldie1:
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.byte 0
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.section .debug_names,"",@progbits
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.long .Lnames_end0-.Lnames_start0 # Header: contribution length
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.Lnames_start0:
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.short 5 # Header: version
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.short 0 # Header: padding
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.long 1 # Header: compilation unit count
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.long 0 # Header: local type unit count
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.long 0 # Header: foreign type unit count
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.long 2 # Header: bucket count
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.long 2 # Header: name count
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.long .Lnames_abbrev_end0-.Lnames_abbrev_start0 # Header: abbreviation table size
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.long 0 # Header: augmentation length
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.long .Lcu_begin0 # Compilation unit 0
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.long 0 # Bucket 0
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.long 1 # Bucket 1
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.long 193491849 # Hash in Bucket 1
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.long -1257882357 # Hash in Bucket 1
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.long .Linfo_string0 # String in Bucket 1: foo
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.long .Linfo_string1 # String in Bucket 1: _Z3foov
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.long .Lnames0-.Lnames_entries0 # Offset in Bucket 1
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.long .Lnames1-.Lnames_entries0 # Offset in Bucket 1
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.Lnames_abbrev_start0:
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.byte 46 # Abbrev code
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.byte 46 # DW_TAG_subprogram
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.byte 3 # DW_IDX_die_offset
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.byte 6 # DW_FORM_data4
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.byte 0 # End of abbrev
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.byte 0 # End of abbrev
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.byte 0 # End of abbrev list
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.Lnames_abbrev_end0:
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.Lnames_entries0:
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.Lnames0:
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.byte 46 # Abbrev code
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.long .Ldie0 # DW_IDX_die_offset
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.long 0 # End of list: foo
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.Lnames1:
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.byte 46 # Abbrev code
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.long .Ldie0 # DW_IDX_die_offset
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.long 0 # End of list: _Z3foov
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.p2align 2
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.Lnames_end0:
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.long .Lnames_end1-.Lnames_start1 # Header: contribution length
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.Lnames_start1:
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.short 5 # Header: version
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.short 0 # Header: padding
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.long 1 # Header: compilation unit count
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.long 0 # Header: local type unit count
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.long 0 # Header: foreign type unit count
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.long 1 # Header: bucket count
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.long 1 # Header: name count
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.long .Lnames_abbrev_end1-.Lnames_abbrev_start1 # Header: abbreviation table size
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.long 0 # Header: augmentation length
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.long .Lcu_begin1 # Compilation unit 0
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.long 1 # Bucket 0
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.long 193487034 # Hash in Bucket 0
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.long .Linfo_string2 # String in Bucket 0: bar
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.long .Lnames2-.Lnames_entries1 # Offset in Bucket 0
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.Lnames_abbrev_start1:
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.byte 52 # Abbrev code
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.byte 52 # DW_TAG_variable
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.byte 3 # DW_IDX_die_offset
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.byte 6 # DW_FORM_data4
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.byte 0 # End of abbrev
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.byte 0 # End of abbrev
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.byte 0 # End of abbrev list
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.Lnames_abbrev_end1:
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.Lnames_entries1:
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.Lnames2:
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.byte 52 # Abbrev code
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.long .Ldie1 # DW_IDX_die_offset
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.long 0 # End of list: bar
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.p2align 2
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.Lnames_end1:
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# CHECK: .debug_names contents:
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# CHECK-NEXT: Name Index @ 0x0 {
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# CHECK-NEXT: Header {
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# CHECK-NEXT: Length: 0x60
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# CHECK-NEXT: Version: 5
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# CHECK-NEXT: Padding: 0x0
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# CHECK-NEXT: CU count: 1
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# CHECK-NEXT: Local TU count: 0
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# CHECK-NEXT: Foreign TU count: 0
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# CHECK-NEXT: Bucket count: 2
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# CHECK-NEXT: Name count: 2
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# CHECK-NEXT: Abbreviations table size: 0x7
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# CHECK-NEXT: Augmentation: ''
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# CHECK-NEXT: }
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# CHECK-NEXT: Compilation Unit offsets [
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# CHECK-NEXT: CU[0]: 0x00000000
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# CHECK-NEXT: ]
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# CHECK-NEXT: Abbreviations [
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# CHECK-NEXT: Abbreviation 0x2e {
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# CHECK-NEXT: Tag: DW_TAG_subprogram
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# CHECK-NEXT: DW_IDX_die_offset: DW_FORM_data4
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# CHECK-NEXT: }
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# CHECK-NEXT: ]
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# CHECK-NEXT: Bucket 0 [
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# CHECK-NEXT: EMPTY
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# CHECK-NEXT: ]
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# CHECK-NEXT: Bucket 1 [
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# CHECK-NEXT: Name 1 {
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# CHECK-NEXT: Hash: 0xB887389
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# CHECK-NEXT: String: 0x00000000 "foo"
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# CHECK-NEXT: Entry @ 0x4f {
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# CHECK-NEXT: Abbrev: 0x2E
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# CHECK-NEXT: Tag: DW_TAG_subprogram
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# CHECK-NEXT: DW_IDX_die_offset: 0x00000001
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# CHECK-NEXT: }
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# CHECK-NEXT: }
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# CHECK-NEXT: Name 2 {
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# CHECK-NEXT: Hash: 0xB5063D0B
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# CHECK-NEXT: String: 0x00000004 "_Z3foov"
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# CHECK-NEXT: Entry @ 0x58 {
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# CHECK-NEXT: Abbrev: 0x2E
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# CHECK-NEXT: Tag: DW_TAG_subprogram
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# CHECK-NEXT: DW_IDX_die_offset: 0x00000001
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# CHECK-NEXT: }
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# CHECK-NEXT: }
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# CHECK-NEXT: ]
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# CHECK-NEXT: }
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# CHECK-NEXT: Name Index @ 0x64 {
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# CHECK-NEXT: Header {
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# CHECK-NEXT: Length: 0x44
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# CHECK-NEXT: Version: 5
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# CHECK-NEXT: Padding: 0x0
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# CHECK-NEXT: CU count: 1
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# CHECK-NEXT: Local TU count: 0
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# CHECK-NEXT: Foreign TU count: 0
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# CHECK-NEXT: Bucket count: 1
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# CHECK-NEXT: Name count: 1
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# CHECK-NEXT: Abbreviations table size: 0x7
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# CHECK-NEXT: Augmentation: ''
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# CHECK-NEXT: }
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# CHECK-NEXT: Compilation Unit offsets [
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# CHECK-NEXT: CU[0]: 0x00000002
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# CHECK-NEXT: ]
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# CHECK-NEXT: Abbreviations [
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# CHECK-NEXT: Abbreviation 0x34 {
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# CHECK-NEXT: Tag: DW_TAG_variable
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# CHECK-NEXT: DW_IDX_die_offset: DW_FORM_data4
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# CHECK-NEXT: }
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# CHECK-NEXT: ]
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# CHECK-NEXT: Bucket 0 [
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# CHECK-NEXT: Name 1 {
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# CHECK-NEXT: Hash: 0xB8860BA
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# CHECK-NEXT: String: 0x0000000c "bar"
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# CHECK-NEXT: Entry @ 0xa3 {
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# CHECK-NEXT: Abbrev: 0x34
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# CHECK-NEXT: Tag: DW_TAG_variable
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# CHECK-NEXT: DW_IDX_die_offset: 0x00000003
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# CHECK-NEXT: }
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# CHECK-NEXT: }
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# CHECK-NEXT: ]
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# CHECK-NEXT: }
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