## Test that yaml2obj emits .debug_abbrev section.
## a) Generate the .debug_abbrev section from the "DWARF" entry.
# RUN: yaml2obj --docnum=1 %s -o %t1.o
# RUN: llvm-readobj --sections --section-data %t1.o | \
# RUN: FileCheck -DSIZE=59 -DADDRALIGN=1 %s --check-prefixes=SHDR,CONTENT
# SHDR: Index: 1
# SHDR-NEXT: Name: .debug_abbrev (1)
# SHDR-NEXT: Type: SHT_PROGBITS (0x1)
# SHDR-NEXT: Flags [ (0x0)
# SHDR-NEXT: ]
# SHDR-NEXT: Address: 0x0
# SHDR-NEXT: Offset: 0x40
# SHDR-NEXT: Size: [[SIZE]]
# SHDR-NEXT: Link: 0
# SHDR-NEXT: Info: 0
# SHDR-NEXT: AddressAlignment: [[ADDRALIGN]]
# SHDR-NEXT: EntrySize: 0
# CONTENT-NEXT: SectionData (
# CONTENT-NEXT: 000: 01110125 0E130503
## ^- abbreviation code ULEB128 ^- DW_FORM_strp ULEB128
## ^- DW_TAG_compile_unit ULEB128 ^- DW_AT_language ULEB128
## ^- DW_CHILDREN_yes 1-byte ^- DW_FORM_data2 ULEB128
## ^- DW_AT_producer ULEB128 ^- DW_AT_name ULEB128
##
## CONTENT: 1A000002 2E011101 |...%............|
## ^- DW_AT_strx ULEB128 ^- DW_TAG_subprogram ULEB128
## ^--- attr terminator ^- DW_CHILDREN_yes 1-byte
## ^- abbreviation code ULEB128 ^- DW_AT_low_pc ULEB128
## ^- DW_FORM_addr ULEB128
##
# CONTENT-NEXT: 0010: 121B0000 03060081
## ^- DW_AT_high_pc ULEB128 ^- abbreviation code ULEB128
## ^- DW_FORM_addrx ULEB128 ^- Tag: value UELB128
## ^--- attr terminator ^- DW_CHILDREN_no 1-byte
## ^- DW_AT_call_pc ULEB128 (0x81)
##
# CONTENT: 01810104 02A04021 |..............@!|
## -- ^- Form: reserved ULEB128
## ^--- Form: invalid ULEB128 (0x81) ^--- Attribute: reserved ULEB128 (0x2020)
## ^- Attribute: reserved ULEB128 ^- DW_FORM_implicit_const ULEB128
##
# CONTENT-NEXT: 0020: CEC2F105 00000001
## ^------- Value SLEB128 (12345678) ^--- attr terminator
## ^- abbrev terminator
## ^- abbreviation code ULEB128
# CONTENT: 1101250E 0000022E |..........%.....|
## ^- DW_TAG_compile_unit ULEB128 ^--- attr terminator
## ^- DW_CHILDREN_yes 1-byte ^- abbreviation code ULEB128
## ^- DW_AT_producer ULEB128 ^- DW_TAG_subprogram ULEB128
## ^- DW_FORM_strp ULEB128
# CONTENT-NEXT: 0030: 01110100 00031100 000000 |...........|
## ^- DW_CHILDREN_yes 1-byte ^--- attr terminator
## ^- DW_AT_low_pc ULEB128 ^- abbrev table terminator
## ^- DW_FORM_addr UELB128
## ^---- attr terminator
## ^- abbrev code ULEB128 (0x03)
## ^- DW_TAG_compile_unit
## ^- DW_CHILDREN_no
# CONTENT-NEXT: )
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
DWARF:
debug_abbrev:
- Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_yes
Attributes:
- Attribute: DW_AT_producer
Form: DW_FORM_strp
- Attribute: DW_AT_language
Form: DW_FORM_data2
- Attribute: DW_AT_name
Form: DW_FORM_strx
- Code: 2
Tag: DW_TAG_subprogram
Children: DW_CHILDREN_yes
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_addr
- Attribute: DW_AT_high_pc
Form: DW_FORM_addrx
- Code: 3
## Test a reserved tag value.
Tag: 0x06
Children: DW_CHILDREN_no
Attributes:
## Test an attribute value that is more than one byte.
- Attribute: DW_AT_call_pc
## Test a form value that is more than one byte.
Form: 0x81
## Test a reserved attribute value.
- Attribute: 0x04
## Test a reserved form value.
Form: 0x02
- Attribute: 0x2020
## Test one special attribute form DW_FORM_implicit_const,
## who is followed by a SLEB128 value.
Form: DW_FORM_implicit_const
Value: 12345678
- Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_yes
Attributes:
- Attribute: DW_AT_producer
Form: DW_FORM_strp
- Code: 2
Tag: DW_TAG_subprogram
Children: DW_CHILDREN_yes
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_addr
## Test that if the 'Attributes' field is not specified, yaml2obj emits
## a terminating entry, 0 for the attribute, 0 for the form.
- Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
## b) Generate the .debug_abbrev section from raw section content.
# RUN: yaml2obj --docnum=2 %s -o %t2.o
# RUN: llvm-readobj --sections --section-data %t2.o | \
# RUN: FileCheck -DADDRALIGN=0 -DSIZE=3 %s --check-prefixes=SHDR,ARBITRARY-CONTENT
# ARBITRARY-CONTENT-NEXT: SectionData (
# ARBITRARY-CONTENT-NEXT: 0000: 112233
# ARBITRARY-CONTENT-NEXT: )
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .debug_abbrev
Type: SHT_PROGBITS
Content: "112233"
## c) Generate the .debug_abbrev section when the "Size" is specified.
# RUN: yaml2obj --docnum=3 %s -o %t3.o
# RUN: llvm-readobj --sections --section-data %t3.o | \
# RUN: FileCheck -DSIZE=16 -DADDRALIGN=0 %s --check-prefixes=SHDR,SIZE
# SIZE-NEXT: SectionData (
# SIZE-NEXT: 0000: 00000000 00000000 00000000 00000000 |................|
# SIZE-NEXT: )
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .debug_abbrev
Type: SHT_PROGBITS
Size: 0x10
## d) Test that yaml2obj emits an error message when both the "Size" and the
## "debug_abbrev" entry are specified at the same time.
# RUN: not yaml2obj --docnum=4 %s 2>&1 | FileCheck %s --check-prefix=ERROR
# ERROR: yaml2obj: error: cannot specify section '.debug_abbrev' contents in the 'DWARF' entry and the 'Content' or 'Size' in the 'Sections' entry at the same time
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .debug_abbrev
Type: SHT_PROGBITS
Size: 0x10
DWARF:
debug_abbrev:
- Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
## e) Test that yaml2obj emits an error message when both the "Content" and the
## "debug_abbrev" entry are specified at the same time.
# RUN: not yaml2obj --docnum=5 %s 2>&1 | FileCheck %s --check-prefix=ERROR
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .debug_abbrev
Type: SHT_PROGBITS
Content: "00"
DWARF:
debug_abbrev:
- Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
## f) Test that all the properties can be overridden by the section header when
## the "debug_abbrev" entry doesn't exist.
# RUN: yaml2obj --docnum=6 %s -o %t6.o
# RUN: llvm-readelf --sections %t6.o | FileCheck %s --check-prefix=OVERRIDDEN
# OVERRIDDEN: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
# OVERRIDDEN: [ 1] .debug_abbrev STRTAB 0000000000002020 000050 000006 01 A 2 1 2
# OVERRIDDEN-NEXT: [ 2] .sec STRTAB 0000000000000000 000056 000000 00 0 0 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .debug_abbrev
Type: SHT_STRTAB ## SHT_PROGBITS by default.
Flags: [SHF_ALLOC] ## 0 by default.
Link: .sec ## 0 by default.
EntSize: 1 ## 0 by default.
Info: 1 ## 0 by default.
AddressAlign: 2 ## 0 by default.
Address: 0x2020 ## 0x00 by default.
Offset: 0x50 ## 0x40 for the first section.
Size: 0x06 ## Set the "Size" so that we can reuse the check tag "OVERRIDDEN".
- Name: .sec ## Linked by .debug_abbrev.
Type: SHT_STRTAB
## g) Test that all the properties can be overridden by the section header when
## the "debug_abbrev" entry exists.
# RUN: yaml2obj --docnum=7 %s -o %t7.o
# RUN: llvm-readelf --sections %t7.o | FileCheck %s --check-prefix=OVERRIDDEN
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Sections:
- Name: .debug_abbrev
Type: SHT_STRTAB ## SHT_PROGBITS by default.
Flags: [SHF_ALLOC] ## 0 by default.
Link: .sec ## 0 by default.
EntSize: 1 ## 0 by default.
Info: 1 ## 0 by default.
AddressAlign: 2 ## 1 by default.
Address: 0x2020 ## 0x00 by default.
Offset: 0x50 ## 0x40 for the first section.
- Name: .sec ## Linked by .debug_abbrev.
Type: SHT_STRTAB
DWARF:
debug_abbrev:
- Table:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
## h) Test that yaml2obj automatically generates abbreviation codes for us.
# RUN: yaml2obj --docnum=8 %s -o %t8.o
# RUN: llvm-readelf --hex-dump=.debug_abbrev %t8.o | FileCheck %s --check-prefix=CODE
# CODE: 0x00000000 01110000 00022e00 0000042e 00000004
## ^- abbreviation code ULEB128
## ^- abbreviation code ULEB128
## ^- abbreviation code (ULEB128) 0x04
## ^- abbreviation code (ULEB128) 0x04
##
# CODE-NEXT: 0x00000010 2e000000 052e0000 00062e00 00000001
## ^- abbreviation code ULEB128
## ^- abbreviation code ULEB128
## ^- abbreviation code ULEB128
# CODE-NEXT: 0x00000020 11000000 022e0000 0000
## ^- abbreviation code ULEB128
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
DWARF:
debug_abbrev:
- Table:
- Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
- Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
- Code: 4
Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
- Code: 4
Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
- Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
- Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
- Table:
## Test that the abbrev codes in a new table start from 1 by default.
- Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
- Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
## i) Test that yaml2obj emits an error message when there are non-empty compilation units
## and multiple abbrev tables are assigned the same ID.
## RUN: not yaml2obj --docnum=9 %s 2>&1 | FileCheck %s --check-prefix=ID-COLLISION
# ID-COLLISION: yaml2obj: error: the ID (1) of abbrev table with index 1 has been used by abbrev table with index 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_abbrev:
- ID: 1
- ID: 1
debug_info:
- Version: 4
AbbrOffset: 0x00
Entries:
- AbbrCode: 1
Values:
- Value: 0x1234
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