## Test that yaml2obj emits a .debug_str_offsets section when requested. ## a) Generate and verify a little endian .debug_str_offsets section. # RUN: yaml2obj -DENDIAN=ELFDATA2LSB --docnum=1 %s -o %t1.le.o # RUN: llvm-readobj --sections --section-data %t1.le.o | \ # RUN: FileCheck -DSIZE=48 -DADDRALIGN=1 %s --check-prefixes=SHDR,DWARF-LE # SHDR: Index: 1 # SHDR-NEXT: Name: .debug_str_offsets (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 # DWARF-LE-NEXT: SectionData ( # DWARF-LE-NEXT: 0000: 0C000000 05000000 78563412 21436587 |........xV4.!Ce.| ## ^------- unit_length (4-byte) ## ^--- version (2-byte) ## ^--- padding (2-byte) ## ^------- offsets[0] (4-byte) ## ^------- offsets[1] (4-byte) # DWARF-LE-NEXT: 0010: FFFFFFFF 14000000 00000000 05000000 |................| ## ^------------------------- unit_length (12-byte) ## ^--- version (2-byte) ## ^--- padding (2-byte) # DWARF-LE-NEXT: 0020: F0DEBC9A 78563412 89674523 01EFCDAB |....xV4..gE#....| ## ^---------------- offsets[0] (8-byte) ## ^---------------- offsets[1] (8-byte) # DWARF-LE-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: [[ENDIAN]] Type: ET_EXEC DWARF: debug_str_offsets: - Offsets: - 0x12345678 - 0x87654321 - Format: DWARF64 Offsets: - 0x123456789abcdef0 - 0xabcdef0123456789 ## b) Generate and verify a big endian .debug_str_offsets section. # RUN: yaml2obj -DENDIAN=ELFDATA2MSB --docnum=1 %s -o %t1.be.o # RUN: llvm-readobj --sections --section-data %t1.be.o | \ # RUN: FileCheck -DSIZE=48 -DADDRALIGN=1 %s --check-prefixes=SHDR,DWARF-BE # DWARF-BE-NEXT: SectionData ( # DWARF-BE-NEXT: 0000: 0000000C 00050000 12345678 87654321 |.........4Vx.eC!| ## ^------- unit_length (4-byte) ## ^--- version (2-byte) ## ^--- padding (2-byte) ## ^------- offsets[0] (4-byte) ## ^------- offsets[1] (4-byte) # DWARF-BE-NEXT: 0010: FFFFFFFF 00000000 00000014 00050000 |................| ## ^------------------------- unit_length (12-byte) ## ^--- version (2-byte) ## ^--- padding (2-byte) # DWARF-BE-NEXT: 0020: 12345678 9ABCDEF0 ABCDEF01 23456789 |.4Vx........#Eg.| ## ^---------------- offsets[0] (8-byte) ## ^---------------- offsets[1] (8-byte) # DWARF-BE-NEXT: ) ## c) Test that the length, version and padding fields can be overwritten. # RUN: yaml2obj --docnum=2 %s -o %t2.o # RUN: llvm-readelf --hex-dump=.debug_str_offsets %t2.o | \ # RUN: FileCheck %s --check-prefix=OVERWRITE # OVERWRITE: Hex dump of section '.debug_str_offsets': # OVERWRITE-NEXT: 0x00000000 34120000 06001200 4....... ## ^------- unit_length (4-byte) ## ^--- version (2-byte) ## ^--- padding (2-bye) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC DWARF: debug_str_offsets: - Length: 0x1234 Version: 6 Padding: 0x12 ## d) Test that an empty 'Offsets' field is allowed. # RUN: yaml2obj --docnum=3 %s -o %t3.o # RUN: llvm-readelf --hex-dump=.debug_str_offsets %t3.o | \ # RUN: FileCheck %s --check-prefix=EMPTY-OFFSETS # EMPTY-OFFSETS: Hex dump of section '.debug_str_offsets': # EMPTY-OFFSETS-NEXT: 0x00000000 04000000 05000000 ........ ## ^------- unit_length (4-byte) ## ^--- version (2-byte) ## ^--- padding (2-byte) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC DWARF: debug_str_offsets: - Offsets: [] ## e) Test that the .debug_str_offsets section header is emitted if the "debug_str_offsets" is empty. # RUN: yaml2obj --docnum=4 %s -o %t4.o # RUN: llvm-readobj --sections --section-data %t4.o | \ # RUN: FileCheck -DSIZE=0 -DADDRALIGN=1 %s --check-prefixes=SHDR,EMPTY-CONTENT # EMPTY-CONTENT-NEXT: SectionData ( # EMPTY-CONTENT-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC DWARF: debug_str_offsets: [] ## f) Generate the .debug_str_offsets section from raw section content. # RUN: yaml2obj --docnum=5 %s -o %t5.o # RUN: llvm-readobj --sections --section-data %t5.o | \ # RUN: FileCheck %s -DADDRALIGN=0 -DSIZE=3 --check-prefixes=SHDR,ARBITRARY-CONTENT # ARBITRARY-CONTENT: SectionData ( # ARBITRARY-CONTENT-NEXT: 0000: 112233 # ARBITRARY-CONTENT-NEXT: ) --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .debug_str_offsets Type: SHT_PROGBITS Content: "112233" ## g) Generate the .debug_str_offsets section when the "Size" is specified. # RUN: yaml2obj --docnum=6 %s -o %t6.o # RUN: llvm-readelf --hex-dump=.debug_str_offsets %t6.o | \ # RUN: FileCheck %s --check-prefix=SIZE # SIZE: Hex dump of section '.debug_str_offsets': # SIZE-NEXT: 0x00000000 00000000 00000000 00000000 00000000 ................ # SIZE-EMPTY: --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .debug_str_offsets Type: SHT_PROGBITS Size: 0x10 ## h) Test that yaml2obj emits an error message when both the "Size" and the ## "debug_str_offsets" entry are specified at the same time. # RUN: not yaml2obj --docnum=7 %s 2>&1 | FileCheck %s --check-prefix=ERROR # ERROR: yaml2obj: error: cannot specify section '.debug_str_offsets' 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_str_offsets Type: SHT_PROGBITS Size: 0x10 DWARF: debug_str_offsets: - Offsets: [] ## i) Test that yaml2obj emits an error message when both the "Content" and the ## "debug_str_offsets" entry are specified at the same time. # RUN: not yaml2obj --docnum=8 %s 2>&1 | FileCheck %s --check-prefix=ERROR --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .debug_str_offsets Type: SHT_PROGBITS Content: "00" DWARF: debug_str_offsets: - Offsets: [] ## j) Test that all the properties can be overridden by the section header when ## the "debug_str_offsets" entry doesn't exist. # RUN: yaml2obj --docnum=9 %s -o %t9.o # RUN: llvm-readelf --sections %t9.o | FileCheck %s --check-prefix=OVERRIDDEN # OVERRIDDEN: [Nr] Name Type Address Off Size ES Flg Lk Inf Al # OVERRIDDEN: [ 1] .debug_str_offsets STRTAB 0000000000002020 000050 000008 01 A 2 1 2 # OVERRIDDEN-NEXT: [ 2] .sec STRTAB 0000000000000000 000058 000000 00 0 0 0 --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .debug_str_offsets 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: 0x08 ## Set the "Size" so that we can reuse the check tag "OVERRIDDEN". - Name: .sec ## Linked by .debug_str_offsets. Type: SHT_STRTAB ## k) Test that all the properties can be overridden by the section header when ## the "debug_str_offsets" entry exists. # RUN: yaml2obj --docnum=10 %s -o %t10.o # RUN: llvm-readelf --sections %t10.o | FileCheck %s --check-prefix=OVERRIDDEN --- !ELF FileHeader: Class: ELFCLASS64 Data: ELFDATA2LSB Type: ET_EXEC Sections: - Name: .debug_str_offsets 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_str_offsets. Type: SHT_STRTAB DWARF: debug_str_offsets: - Offsets: []