debug-info.yaml
34.4 KB
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## Test that yaml2obj emits .debug_info section.
## a) Generate the .debug_info section from the "DWARF" entry.
## Generate and verify a DWARF32 little endian .debug_info (DWARFv5) section.
# RUN: yaml2obj --docnum=1 -DENDIAN=ELFDATA2LSB %s -o %t1.le.o
# RUN: llvm-readobj --sections --section-data %t1.le.o | \
# RUN: FileCheck -DINDEX=2 -DNAME=15 -DOFFSET=0x9B -DSIZE=179 -DADDRALIGN=1 %s --check-prefixes=SHDR,DWARF32-LE-CONTENT
# SHDR: Index: [[INDEX]]
# SHDR-NEXT: Name: .debug_info ([[NAME]])
# SHDR-NEXT: Type: SHT_PROGBITS (0x1)
# SHDR-NEXT: Flags [ (0x0)
# SHDR-NEXT: ]
# SHDR-NEXT: Address: 0x0
# SHDR-NEXT: Offset: [[OFFSET]]
# SHDR-NEXT: Size: [[SIZE]]
# SHDR-NEXT: Link: 0
# SHDR-NEXT: Info: 0
# SHDR-NEXT: AddressAlignment: [[ADDRALIGN]]
# SHDR-NEXT: EntrySize: 0
# DWARF32-LE-CONTENT-NEXT: SectionData (
# DWARF32-LE-CONTENT-NEXT: 0000: 34120000 05000204 34120000 01785634
## ^------- unit_length (4-byte)
## ^--- version (2-byte)
## ^- unit_type (1-byte) DW_UT_type
## ^- address_size (1-byte)
## ^------- debug_abbrev_offset (4-byte)
## ^- abbreviation code (LEB128) 0x01
## ^----- Form: DW_FORM_addr (4-byte)
# DWARF32-LE-CONTENT-NEXT: 0010: 12020012 34020000 00123434 12785634
## --
## ^--- Form: DW_FORM_block2 size (2-byte)
## ^- ^- Form: DW_FORM_block2 body (2-byte)
## ^-------- Form: DW_FORM_block4 size (4-byte)
## ^-^- Form: DW_FORM_block4 body (2-byte)
## ^---- Form: DW_FORM_data2 (2-byte)
## ^----- Form: DW_FORM_data4 (4-byte)
# DWARF32-LE-CONTENT-NEXT: 0020: 12F0DEBC 9A785634 12616263 64000212
## --
## ^----------------- Form: DW_FORM_data8 (8-byte)
## ^---------- Form: DW_FORM_string "abcd\0"
## ^- Form: DW_FORM_block size (ULEB128)
## ^- Form: DW_FORM_block body (2-byte)
# DWARF32-LE-CONTENT-NEXT: 0030: 34021234 1201B424 78563412 B4247856
## ^- Form: DW_FORM_block body
## ^- Form: DW_FORM_block1 size (1-byte)
## ^-^- Form: DW_FORM_block1 body (2-byte)
## ^- Form: DW_FORM_data1 (1-byte)
## ^- Form: DW_FORM_flag (1-byte)
## ^--- Form: DW_FORM_sdata (SLEB128) 0x1234
## ^------- Form: DW_FORM_strp (4-byte)
## ^--- Form: DW_FORM_udata (ULEB128) 0x1234
## ^--- Form: DW_FORM_ref_addr (4-byte)
# DWARF32-LE-CONTENT-NEXT: 0040: 34121234 12785634 12F0DEBC 9A785634
## ----
## ^- Form: DW_FORM_ref1 (1-byte)
## ^---- Form: DW_FORM_ref2 (2-byte)
## ^-------- Form: DW_FORM_ref4 (4-byte)
## ^-------------- Form: DW_FORM_ref8 (8-byte)
# DWARF32-LE-CONTENT-NEXT: 0050: 12B42408 65666768 00341200 00021234
## --
## ^--- Form: DW_FORM_ref_udata (ULEB128) 0x1234
## ^- Form: DW_FORM_indirect (ULEB128) DW_FORM_string
## ^---------- "efgh\0"
## ^-------- Form: DW_FORM_sec_offset (4-byte)
## ^- Form: DW_FORM_exprloc size (ULEB128) 0x02
## ^-^- Form: DW_FORM_exprloc body (2-byte)
# DWARF32-LE-CONTENT-NEXT: 0060: B424B424 78563412 78563412 78563412
## ^--- Form: DW_FORM_strx (ULEB128)
## ^--- Form: DW_FORM_addrx (ULEB128)
## ^------- Form: DW_FORM_ref_sup4 (4-byte)
## ^------- Form: DW_FORM_strp_sup (4-byte)
## ^------- Form: DW_FORM_line_strp (4-byte)
# DWARF32-LE-CONTENT-NEXT: 0070: F0DEBC9A 78563412 B424B424 F0DEBC9A
## ^---------------- Form: DW_FORM_ref_sig8 (8-byte)
## ^--- Form: DW_FORM_loclistx (ULEB128)
## ^--- Form: DW_FORM_rnglistx (ULEB128)
## ^------- Form: DW_FORM_ref_sup8 (8-byte)
# DWARF32-LE-CONTENT-NEXT: 0080: 78563412 12341278 56341212 34127856
## --------
## ^- Form: DW_FORM_strx1 (1-byte)
## ^--- Form: DW_FORM_strx2 (2-byte)
## ^-------- Form: DW_FORM_strx4 (4-byte)
## ^- Form: DW_FORM_addrx1 (1-byte)
## ^--- Form: DW_FORM_addrx2 (1-byte)
## ^--- Form: DW_FORM_addrx4 (4-byte)
# DWARF32-LE-CONTENT-NEXT: 0090: 34123412 00000500 01043412 00000078
## ----
## ^-------- unit_length (4-byte)
## ^--- version (2-byte)
## ^- unit_type (1-byte)
## ^- address_size (1-byte)
## ^-------- debug_abbrev_offset (4-byte)
## ^- abbrev code (ULEB128) 0x00
## ^- unit_length (4-byte)
# DWARF32-LE-CONTENT-NEXT: 00A0: 56000004 00785600 00040178 56341202
## ------
## ^---- version (2-byte)
## ^-------- debug_abbrev_offset (4-byte)
## ^- address_size (1-byte)
## ^- abbrev code (ULEB128) 0x01
## ^-------- Form: DW_FORM_addr
## ^- Form: DW_FORM_block2 size (2-byte)
# DWARF32-LE-CONTENT-NEXT: 00B0: 001234
## --
## ^-^- Form: DW_FORM_block2 body (2-byte)
# DWARF32-LE-CONTENT-NEXT: )
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: [[ENDIAN]]
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_abbrev:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes:
- Attribute: 0x01
Form: DW_FORM_addr ## 0x01
- Attribute: 0x01
Form: DW_FORM_block2 ## 0x03
- Attribute: 0x01
Form: DW_FORM_block4 ## 0x04
- Attribute: 0x01
Form: DW_FORM_data2 ## 0x05
- Attribute: 0x01
Form: DW_FORM_data4 ## 0x06
- Attribute: 0x01
Form: DW_FORM_data8 ## 0x07
- Attribute: 0x01
Form: DW_FORM_string ## 0x08
- Attribute: 0x01
Form: DW_FORM_block ## 0x09
- Attribute: 0x01
Form: DW_FORM_block1 ## 0x0a
- Attribute: 0x01
Form: DW_FORM_data1 ## 0x0b
- Attribute: 0x01
Form: DW_FORM_flag ## 0x0c
- Attribute: 0x01
Form: DW_FORM_sdata ## 0x0d
- Attribute: 0x01
Form: DW_FORM_strp ## 0x0e
- Attribute: 0x01
Form: DW_FORM_udata ## 0x0f
- Attribute: 0x01
Form: DW_FORM_ref_addr ## 0x10
- Attribute: 0x01
Form: DW_FORM_ref1 ## 0x11
- Attribute: 0x01
Form: DW_FORM_ref2 ## 0x12
- Attribute: 0x01
Form: DW_FORM_ref4 ## 0x13
- Attribute: 0x01
Form: DW_FORM_ref8 ## 0x14
- Attribute: 0x01
Form: DW_FORM_ref_udata ## 0x15
- Attribute: 0x01
Form: DW_FORM_indirect ## 0x16
- Attribute: 0x01
Form: DW_FORM_sec_offset ## 0x17
- Attribute: 0x01
Form: DW_FORM_exprloc ## 0x18
- Attribute: 0x01
Form: DW_FORM_strx ## 0x1a
- Attribute: 0x01
Form: DW_FORM_addrx ## 0x1b
- Attribute: 0x01
Form: DW_FORM_ref_sup4 ## 0x1c
- Attribute: 0x01
Form: DW_FORM_strp_sup ## 0x1d
- Attribute: 0x01
Form: DW_FORM_data16 ## 0x1e
- Attribute: 0x01
Form: DW_FORM_line_strp ## 0x1f
- Attribute: 0x01
Form: DW_FORM_ref_sig8 ## 0x20
- Attribute: 0x01
Form: DW_FORM_implicit_const ## 0x21
Value: 0x01
- Attribute: 0x01
Form: DW_FORM_loclistx ## 0x22
- Attribute: 0x01
Form: DW_FORM_rnglistx ## 0x23
- Attribute: 0x01
Form: DW_FORM_ref_sup8 ## 0x24
- Attribute: 0x01
Form: DW_FORM_strx1 ## 0x25
- Attribute: 0x01
Form: DW_FORM_strx2 ## 0x26
- Attribute: 0x01
Form: DW_FORM_strx3 ## 0x27
- Attribute: 0x01
Form: DW_FORM_strx4 ## 0x28
- Attribute: 0x01
Form: DW_FORM_addrx1 ## 0x29
- Attribute: 0x01
Form: DW_FORM_addrx2 ## 0x2a
- Attribute: 0x01
Form: DW_FORM_addrx3 ## 0x2b
- Attribute: 0x01
Form: DW_FORM_addrx4 ## 0x2c
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries:
- AbbrCode: 1
Values:
- Value: 0x12345678 ## DW_FORM_addr
- BlockData: ## DW_FORM_block2
- 0x12
- 0x34
- BlockData: ## DW_FORM_block4
- 0x12
- 0x34
- Value: 0x1234 ## DW_FORM_data2
- Value: 0x12345678 ## DW_FORM_data4
- Value: 0x123456789abcdef0 ## DW_FORM_data8
- CStr: abcd ## DW_FORM_string
- BlockData: ## DW_FORM_block
- 0x12
- 0x34
- BlockData: ## DW_FORM_block1
- 0x12
- 0x34
- Value: 0x12 ## DW_FORM_data1
- Value: 0x01 ## DW_FORM_flag
- Value: 0x1234 ## DW_FORM_sdata
- Value: 0x12345678 ## DW_FORM_strp
- Value: 0x1234 ## DW_FORM_udata
- Value: 0x12345678 ## DW_FORM_ref_addr
- Value: 0x12 ## DW_FORM_ref1
- Value: 0x1234 ## DW_FORM_ref2
- Value: 0x12345678 ## DW_FORM_ref4
- Value: 0x123456789abcdef0 ## DW_FORM_ref8
- Value: 0x1234 ## DW_FORM_ref_udata
- Value: 0x08 ## DW_FORM_indirect. The following value's form is 0x08, which is DW_FORM_string.
- CStr: efgh
- Value: 0x1234 ## DW_FORM_sec_offset
- BlockData: ## DW_FORM_exprloc
- 0x12
- 0x34
- Value: 0x1234 ## DW_FORM_strx
- Value: 0x1234 ## DW_FORM_addrx
- Value: 0x12345678 ## DW_FORM_ref_sup4
- Value: 0x12345678 ## DW_FORM_strp_sup
- Value: 0x1234 ## DW_FORM_data16 (unimplemented)
- Value: 0x12345678 ## DW_FORM_line_strp
- Value: 0x123456789abcdef0 ## DW_FORM_ref_sig8
- Value: 0x1234 ## DW_FORM_implicit_const (unimplemented)
- Value: 0x1234 ## DW_FORM_loclistx
- Value: 0x1234 ## DW_FORM_rnglistx
- Value: 0x123456789abcdef0 ## DW_FORM_ref_sup8
- Value: 0x12 ## DW_FORM_strx1
- Value: 0x1234 ## DW_FORM_strx2
- Value: 0x123456 ## DW_FORM_strx3 (unimplemented)
- Value: 0x12345678 ## DW_FORM_strx4
- Value: 0x12 ## DW_FORM_addrx1
- Value: 0x1234 ## DW_FORM_addrx2
- Value: 0x123456 ## DW_FORM_addrx3 (unimplemented)
- Value: 0x12345678 ## DW_FORM_addrx4
- Length: 0x1234
Version: 5
## Test another unit type.
UnitType: DW_UT_compile
AbbrOffset: 0x1234
AddrSize: 4
Entries:
- AbbrCode: 0
Values: []
- Length: 0x5678
## Test DWARFv4
Version: 4
AbbrOffset: 0x5678
AddrSize: 4
Entries:
- AbbrCode: 1
Values:
- Value: 0x12345678 ## DW_FORM_addr
- BlockData: ## DW_FORM_block2
- 0x12
- 0x34
## Generate and verify a DWARF32 big endian .debug_info (DWARFv4) section.
# RUN: yaml2obj --docnum=1 -DENDIAN=ELFDATA2MSB %s -o %t1.be.o
# RUN: llvm-readobj --sections --section-data %t1.be.o | \
# RUN: FileCheck -DINDEX=2 -DNAME=15 -DOFFSET=0x9B -DSIZE=179 -DADDRALIGN=1 %s --check-prefixes=SHDR,DWARF32-BE-CONTENT
# DWARF32-BE-CONTENT-NEXT: SectionData (
# DWARF32-BE-CONTENT-NEXT: 0000: 00001234 00050204 00001234 01123456
## ^------- unit_length (4-byte)
## ^--- version (2-byte)
## ^- unit_type (1-byte) DW_UT_type
## ^- address_size (1-byte)
## ^------- debug_abbrev_offset (4-byte)
## ^- abbreviation code (LEB128) 0x01
## ^----- Form: DW_FORM_addr (4-byte)
# DWARF32-BE-CONTENT-NEXT: 0010: 78000212 34000000 02123412 34123456
## --
## ^--- Form: DW_FORM_block2 size (2-byte)
## ^- ^- Form: DW_FORM_block2 body (2-byte)
## ^-------- Form: DW_FORM_block4 size (4-byte)
## ^-^- Form: DW_FORM_block4 body (2-byte)
## ^---- Form: DW_FORM_data2 (2-byte)
## ^----- Form: DW_FORM_data4 (4-byte)
# DWARF32-BE-CONTENT-NEXT: 0020: 78123456 789ABCDE F0616263 64000212
## --
## ^----------------- Form: DW_FORM_data8 (8-byte)
## ^---------- Form: DW_FORM_string "abcd\0"
## ^- Form: DW_FORM_block size (ULEB128)
## ^- Form: DW_FORM_block body (2-byte)
# DWARF32-BE-CONTENT-NEXT: 0030: 34021234 1201B424 12345678 B4241234
## ^- Form: DW_FORM_block body
## ^- Form: DW_FORM_block1 size (1-byte)
## ^-^- Form: DW_FORM_block1 body (2-byte)
## ^- Form: DW_FORM_data1 (1-byte)
## ^- Form: DW_FORM_flag (1-byte)
## ^--- Form: DW_FORM_sdata (SLEB128) 0x1234
## ^------- Form: DW_FORM_strp (4-byte)
## ^--- Form: DW_FORM_udata (ULEB128) 0x1234
## ^--- Form: DW_FORM_ref_addr (4-byte)
# DWARF32-BE-CONTENT-NEXT: 0040: 56781212 34123456 78123456 789ABCDE
## ----
## ^- Form: DW_FORM_ref1 (1-byte)
## ^---- Form: DW_FORM_ref2 (2-byte)
## ^-------- Form: DW_FORM_ref4 (4-byte)
## ^-------------- Form: DW_FORM_ref8 (8-byte)
# DWARF32-BE-CONTENT-NEXT: 0050: F0B42408 65666768 00000012 34021234
## --
## ^--- Form: DW_FORM_ref_udata (ULEB128) 0x1234
## ^- Form: DW_FORM_indirect (ULEB128) DW_FORM_string
## ^---------- "efgh\0"
## ^-------- Form: DW_FORM_sec_offset (4-byte)
## ^- Form: DW_FORM_exprloc size (ULEB128) 0x02
## ^-^- Form: DW_FORM_exprloc body (2-byte)
# DWARF32-BE-CONTENT-NEXT: 0060: B424B424 12345678 12345678 12345678
## ^--- Form: DW_FORM_strx (ULEB128)
## ^--- Form: DW_FORM_addrx (ULEB128)
## ^------- Form: DW_FORM_ref_sup4 (4-byte)
## ^------- Form: DW_FORM_strp_sup (4-byte)
## ^------- Form: DW_FORM_line_strp (4-byte)
# DWARF32-BE-CONTENT-NEXT: 0070: 12345678 9ABCDEF0 B424B424 12345678
## ^---------------- Form: DW_FORM_ref_sig8 (8-byte)
## ^--- Form: DW_FORM_loclistx (ULEB128)
## ^--- Form: DW_FORM_rnglistx (ULEB128)
## ^------- Form: DW_FORM_ref_sup8 (8-byte)
# DWARF32-BE-CONTENT-NEXT: 0080: 9ABCDEF0 12123412 34567812 12341234
## --------
## ^- Form: DW_FORM_strx1 (1-byte)
## ^--- Form: DW_FORM_strx2 (2-byte)
## ^-------- Form: DW_FORM_strx4 (4-byte)
## ^- Form: DW_FORM_addrx1 (1-byte)
## ^--- Form: DW_FORM_addrx2 (1-byte)
## ^--- Form: DW_FORM_addrx4 (4-byte)
# DWARF32-BE-CONTENT-NEXT: 0090: 56780000 12340005 01040000 12340000
## ----
## ^-------- unit_length (4-byte)
## ^--- version (2-byte)
## ^- unit_type (1-byte)
## ^- address_size (1-byte)
## ^-------- debug_abbrev_offset (4-byte)
## ^- abbrev code (ULEB128) 0x00
## ^- unit_length (4-byte)
# DWARF32-BE-CONTENT-NEXT: 00A0: 00567800 04000056 78040112 34567800
## ------
## ^---- version (2-byte)
## ^-------- debug_abbrev_offset (4-byte)
## ^- address_size (1-byte)
## ^- abbrev code (ULEB128) 0x01
## ^-------- Form: DW_FORM_addr
## ^- Form: DW_FORM_block2 size (2-byte)
# DWARF32-BE-CONTENT-NEXT: 00B0: 021234
## --
## ^-^- Form: DW_FORM_block2 body (2-byte)
# DWARF32-BE-CONTENT-NEXT: )
## b) Generate the .debug_info section from raw section content.
# RUN: yaml2obj --docnum=2 %s -o %t2.o
# RUN: llvm-readobj --sections --section-data %t2.o | \
# RUN: FileCheck -DINDEX=1 -DNAME=1 -DOFFSET=0x40 -DSIZE=3 -DADDRALIGN=0 %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
Machine: EM_X86_64
Sections:
- Name: .debug_info
Type: SHT_PROGBITS
Content: "112233"
## c) Generate the .debug_info section when the "Size" is specified.
# RUN: yaml2obj --docnum=3 %s -o %t3.o
# RUN: llvm-readobj --sections --section-data %t3.o | \
# RUN: FileCheck -DINDEX=1 -DNAME=1 -DOFFSET=0x40 -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
Machine: EM_X86_64
Sections:
- Name: .debug_info
Type: SHT_PROGBITS
Size: 0x10
## d) Test that yaml2obj emits an error message when both the "Size" and the
## "debug_info" entry are specified at the same time.
# RUN: not yaml2obj --docnum=4 %s 2>&1 | FileCheck %s --check-prefix=AMBIGUOUS-CONTENT
# AMBIGUOUS-CONTENT: yaml2obj: error: cannot specify section '.debug_info' 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
Machine: EM_X86_64
Sections:
- Name: .debug_info
Type: SHT_PROGBITS
Size: 0x10
DWARF:
debug_abbrev:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes: []
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries: []
## e) Test that yaml2obj emits an error message when both the "Content" and the
## "debug_info" entry are specified at the same time.
# RUN: not yaml2obj --docnum=5 %s 2>&1 | FileCheck %s --check-prefix=AMBIGUOUS-CONTENT
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .debug_info
Type: SHT_PROGBITS
Content: "00"
DWARF:
debug_abbrev:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes: []
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries: []
## f) Test that all the properties can be overridden by the section header when
## the "debug_info" 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_info STRTAB 0000000000002020 000050 00000d 01 A 2 1 2
# OVERRIDDEN-NEXT: [ 2] .sec STRTAB 0000000000000000 00005d 000000 00 0 0 0
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .debug_info
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: 0x0d ## Set the "Size" so that we can reuse the check tag "OVERRIDDEN".
- Name: .sec ## Linked by .debug_info.
Type: SHT_STRTAB
## g) Test that all the properties can be overridden by the section header when
## the "debug_info" 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
Machine: EM_X86_64
Sections:
- Name: .debug_info
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.
- Name: .sec ## Linked by .debug_info.
Type: SHT_STRTAB
DWARF:
debug_abbrev:
- Code: 1
Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_no
Attributes: []
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries:
- AbbrCode: 0
Values: []
## h) Test that yaml2obj doesn't crash when the 'Entries' of a compilation unit is empty.
# RUN: yaml2obj --docnum=8 %s -o %t8.o
# RUN: llvm-readelf --hex-dump=.debug_info %t8.o | \
# RUN: FileCheck %s --check-prefix=EMPTY-ENTRIES --match-full-lines
# EMPTY-ENTRIES: Hex dump of section '.debug_info':
# EMPTY-ENTRIES-NEXT: 0x00000000 34120000 05000204 34120000 4.......4...
# EMPTY-ENTRIES-EMPTY:
## ^- 'Entries' is empty
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries: []
## h) Test that yaml2obj emits values in the DIE according to the abbreviation whose
## index is equal to the value in 'AbbrevCode'.
# RUN: yaml2obj --docnum=9 %s -o %t9.o
# RUN: llvm-readelf --hex-dump=.debug_info %t9.o | \
# RUN: FileCheck %s --check-prefix=FORM --match-full-lines
# FORM: Hex dump of section '.debug_info':
# FORM-NEXT: 0x00000000 34120000 05000204 34120000 02341221 4.......4....4.!
## ^------- unit_length (4-byte)
## ^- abbreviation code (ULEB128)
## ^--- Form: DW_FORM_data2 (2-byte)
## ^- Form: DW_FORM_data4 (4-byte)
# FORM-NEXT: 0x00000010 43658701 21436587 341200 Ce..!Ce.4..
## ------
## ^- abbreviation code (ULEB128)
## ^------- Form: DW_FORM_data4 (4-byte)
## ^--- Form: DW_FORM_data2 (2-byte)
## ^- abbreviation code (ULEB128)
# FORM-EMPTY:
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_abbrev:
- Tag: DW_TAG_compile_unit
Children: DW_CHILDREN_yes
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_data4
- Attribute: DW_AT_high_pc
Form: DW_FORM_data2
- Tag: DW_TAG_subprogram
Children: DW_CHILDREN_no
Attributes:
- Attribute: DW_AT_low_pc
Form: DW_FORM_data2
- Attribute: DW_AT_high_pc
Form: DW_FORM_data4
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries:
## Test that yaml2obj emits values when the abbrev code is specified.
- AbbrCode: 2
Values:
- Value: 0x1234
- Value: 0x87654321
## Test that yaml2obj emits values when the abbrev code is specified to
## be lower than the first abbrev.
- AbbrCode: 1
Values:
- Value: 0x87654321
- Value: 0x1234
## Test that yaml2obj ignores the contents of entries with abbrev code 0.
- AbbrCode: 0
Values:
- Value: 0x1234
## i) Test that yaml2obj reports an error when 'debug_info' has values in its
## entries but 'debug_abbrev' doesn't have enough attributes for them.
# RUN: not yaml2obj --docnum=10 %s -o %t10.o 2>&1 | \
# RUN: FileCheck %s --check-prefixes=ERROR
# ERROR: yaml2obj: error: abbrev code must be less than or equal to the number of entries in abbreviation table
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_info:
- Length: 0x1234
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 4
Entries:
- AbbrCode: 1
Values:
- Value: 0x1234
## j) Test that yaml2obj emits the correct DWARF64 unit headers.
## DWARFv5 unit header.
# RUN: yaml2obj --docnum=11 %s -o %t11.o
# RUN: llvm-readelf --hex-dump=.debug_info %t11.o | \
# RUN: FileCheck %s --check-prefix=DWARFV5-HEADER
# DWARFV5-HEADER: Hex dump of section '.debug_info':
# DWARFV5-HEADER-NEXT: 0x00000000 ffffffff 0c000000 00000000 05000208 ................
## ^------------------------- unit_length (12-byte)
## ^--- version (2-byte)
## ^- unit_type (1-byte)
## ^- address_size (1-byte)
# DWARFV5-HEADER-NEXT: 0x00000010 34120000 00000000 4.......
## ^---------------- debug_abbrev_offset (8-byte)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_info:
- Format: DWARF64
Length: 0x0c
Version: 5
UnitType: DW_UT_type
AbbrOffset: 0x1234
AddrSize: 8
Entries: []
## DWARFv4 unit header.
# RUN: yaml2obj --docnum=12 %s -o %t12.o
# RUN: llvm-readelf --hex-dump=.debug_info %t12.o | \
# RUN: FileCheck %s --check-prefix=DWARFV4-HEADER
# DWARFV4-HEADER: Hex dump of section '.debug_info':
# DWARFV4-HEADER-NEXT: 0x00000000 ffffffff 0c000000 00000000 04003412 ..............4.
## ^------------------------- unit_length (12-byte)
## ^--- version (2-byte)
## ^--- debug_abbrev_offset (8-byte)
# DWARFV4-HEADER-NEXT: 0x00000010 00000000 000008 .......
## -------------
## ^- address_size (1-byte)
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_info:
- Format: DWARF64
Length: 0x0c
Version: 4
AbbrOffset: 0x1234
AddrSize: 8
Entries: []