forked from OSchip/llvm-project
[ObjectYAML][ELF] Add support for emitting the .debug_pubtypes section.
This patch helps add support for emitting the .debug_pubtypes section. Reviewed By: jhenderson Differential Revision: https://reviews.llvm.org/D82347
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@ -40,6 +40,8 @@ SetVector<StringRef> DWARFYAML::Data::getUsedSectionNames() const {
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SecNames.insert("debug_info");
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if (PubNames)
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SecNames.insert("debug_pubnames");
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if (PubTypes)
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SecNames.insert("debug_pubtypes");
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return SecNames;
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}
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@ -945,6 +945,8 @@ Expected<uint64_t> emitDWARF(typename ELFT::Shdr &SHeader, StringRef Name,
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Err = DWARFYAML::emitDebugInfo(*OS, DWARF);
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else if (Name == ".debug_pubnames")
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Err = DWARFYAML::emitPubSection(*OS, *DWARF.PubNames, DWARF.IsLittleEndian);
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else if (Name == ".debug_pubtypes")
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Err = DWARFYAML::emitPubSection(*OS, *DWARF.PubTypes, DWARF.IsLittleEndian);
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else
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llvm_unreachable("unexpected emitDWARF() call");
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@ -0,0 +1,231 @@
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## Test that yaml2obj emits .debug_pubtypes section.
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## a) Generate the '.debug_pubtypes' section from the 'DWARF' entry.
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## Generate and verify a 32-bit little endian .debug_pubtypes section.
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# RUN: yaml2obj --docnum=1 -DENDIAN=ELFDATA2LSB %s -o %t1.le.o
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# RUN: llvm-readobj --sections --section-data %t1.le.o | \
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# RUN: FileCheck -DSIZE=30 -DADDRALIGN=1 %s --check-prefixes=SHDR,DWARF32-LE
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# SHDR: Index: 1
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# SHDR-NEXT: Name: .debug_pubtypes (1)
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# SHDR-NEXT: Type: SHT_PROGBITS (0x1)
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# SHDR-NEXT: Flags [ (0x0)
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# SHDR-NEXT: ]
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# SHDR-NEXT: Address: 0x0
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# SHDR-NEXT: Offset: 0x40
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# SHDR-NEXT: Size: [[SIZE]]
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# SHDR-NEXT: Link: 0
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# SHDR-NEXT: Info: 0
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# SHDR-NEXT: AddressAlignment: [[ADDRALIGN]]
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# SHDR-NEXT: EntrySize: 0
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# DWARF32-LE-NEXT: SectionData (
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# DWARF32-LE-NEXT: 0000: 34120000 02003412 00002143 00007856 |4.....4...!C..xV|
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## ^------- unit_length (4-byte)
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## ^--- version (2-byte)
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## ^-------- debug_info_offset (4-byte)
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## ^-------- debug_info_length (4-byte)
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## ^--- offset (4-byte)
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##
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# DWARF32-LE-NEXT: 0010: 34126162 63002143 65876465 6600 |4.abc.!Ce.def.|
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## ----
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## ^-------- name "abc\0"
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## ^-------- offset (4-byte)
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## ^-------- name "def\0"
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# DWARF32-LE-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: [[ENDIAN]]
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Type: ET_EXEC
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Machine: EM_X86_64
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DWARF:
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debug_pubtypes:
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Length:
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TotalLength: 0x1234
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Version: 2
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UnitOffset: 0x1234
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UnitSize: 0x4321
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Entries:
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- DieOffset: 0x12345678
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Name: abc
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- DieOffset: 0x87654321
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Name: def
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## Generate and verify a 32-bit big endian .debug_pubtypes section.
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# RUN: yaml2obj --docnum=1 -DENDIAN=ELFDATA2MSB %s -o %t1.be.o
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# RUN: llvm-readobj --sections --section-data %t1.be.o | \
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# RUN: FileCheck -DSIZE=30 -DADDRALIGN=1 %s --check-prefixes=SHDR,DWARF32-BE
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# DWARF32-BE-NEXT: SectionData (
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# DWARF32-BE-NEXT: 0000: 00001234 00020000 12340000 43211234 |...4.....4..C!.4|
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## ^------- unit_length (4-byte)
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## ^--- version (2-byte)
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## ^-------- debug_info_offset (4-byte)
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## ^-------- debug_info_length (4-byte)
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## ^--- offset (4-byte)
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##
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# DWARF32-BE-NEXT: 0010: 56786162 63008765 43216465 6600 |Vxabc..eC!def.|
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## ----
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## ^-------- name "abc\0"
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## ^-------- offset (4-byte)
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## ^-------- name "def\0"
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# DWARF32-BE-NEXT: )
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## b) Generate the .debug_pubtypes section from raw section content.
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# RUN: yaml2obj --docnum=2 %s -o %t2.o
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# RUN: llvm-readobj --sections --section-data %t2.o | \
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# RUN: FileCheck %s -DADDRALIGN=0 -DSIZE=3 --check-prefixes=SHDR,ARBITRARY-CONTENT
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# ARBITRARY-CONTENT: SectionData (
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# ARBITRARY-CONTENT-NEXT: 0000: 112233
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# ARBITRARY-CONTENT-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .debug_pubtypes
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Type: SHT_PROGBITS
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Content: "112233"
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## c) Generate the .debug_pubtypes section when the "Size" is specified.
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# RUN: yaml2obj --docnum=3 %s -o %t3.o
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# RUN: llvm-readobj --sections --section-data %t3.o | \
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# RUN: FileCheck -DSIZE=16 -DADDRALIGN=0 %s --check-prefixes=SHDR,SIZE
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# SIZE: SectionData (
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# SIZE-NEXT: 0000: 00000000 00000000 00000000 00000000 |................|
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# SIZE-NEXT: )
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .debug_pubtypes
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Type: SHT_PROGBITS
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Size: 0x10
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## d) Test that yaml2obj emits an error message when both the "Size" and the
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## "debug_pubtypes" entry are specified at the same time.
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# RUN: not yaml2obj --docnum=4 %s 2>&1 | FileCheck %s --check-prefix=ERROR
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# ERROR: yaml2obj: error: cannot specify section '.debug_pubtypes' contents in the 'DWARF' entry and the 'Content' or 'Size' in the 'Sections' entry at the same time
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .debug_pubtypes
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Type: SHT_PROGBITS
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Size: 0x10
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DWARF:
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debug_pubtypes:
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Length:
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TotalLength: 0x1234
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Version: 2
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UnitOffset: 0x1234
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UnitSize: 0x4321
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Entries: []
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## e) Test that yaml2obj emits an error message when both the "Content" and the
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## "debug_pubtypes" entry are specified at the same time.
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# RUN: not yaml2obj --docnum=5 %s 2>&1 | FileCheck %s --check-prefix=ERROR
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .debug_pubtypes
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Type: SHT_PROGBITS
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Content: "00"
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DWARF:
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debug_pubtypes:
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Length:
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TotalLength: 0x1234
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Version: 2
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UnitOffset: 0x1234
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UnitSize: 0x4321
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Entries: []
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## f) Test that all the properties can be overridden by the section header when
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## the "debug_pubtypes" entry doesn't exist.
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# RUN: yaml2obj --docnum=6 %s -o %t6.o
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# RUN: llvm-readelf --sections %t6.o | FileCheck %s --check-prefix=OVERRIDDEN
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# OVERRIDDEN: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# OVERRIDDEN: [ 1] .debug_pubtypes STRTAB 0000000000002020 000050 00000e 01 A 2 1 2
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# OVERRIDDEN-NEXT: [ 2] .sec STRTAB 0000000000000000 00005e 000000 00 0 0 0
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .debug_pubtypes
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Type: SHT_STRTAB ## SHT_PROGBITS by default.
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Flags: [SHF_ALLOC] ## 0 by default.
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Link: .sec ## 0 by default.
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EntSize: 1 ## 0 by default.
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Info: 1 ## 0 by default.
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AddressAlign: 2 ## 0 by default.
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Address: 0x2020 ## 0x00 by default.
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Offset: 0x50 ## 0x40 for the first section.
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Size: 0x0e ## Set the "Size" so that we can reuse the check tag "OVERRIDDEN".
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- Name: .sec ## Linked by .debug_pubtypes.
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Type: SHT_STRTAB
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## g) Test that all the properties can be overridden by the section header when
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## the "debug_pubtypes" entry exists.
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# RUN: yaml2obj --docnum=7 %s -o %t7.o
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# RUN: llvm-readelf --sections %t7.o | FileCheck %s --check-prefix=OVERRIDDEN
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--- !ELF
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FileHeader:
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Class: ELFCLASS64
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Data: ELFDATA2LSB
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Type: ET_EXEC
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Machine: EM_X86_64
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Sections:
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- Name: .debug_pubtypes
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Type: SHT_STRTAB ## SHT_PROGBITS by default.
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Flags: [SHF_ALLOC] ## 0 by default.
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Link: .sec ## 0 by default.
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EntSize: 1 ## 0 by default.
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Info: 1 ## 0 by default.
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AddressAlign: 2 ## 1 by default.
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Address: 0x2020 ## 0x00 by default.
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Offset: 0x50 ## 0x40 for the first section.
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- Name: .sec ## Linked by .debug_pubtypes.
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Type: SHT_STRTAB
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DWARF:
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debug_pubtypes:
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Length:
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TotalLength: 0x1234
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Version: 2
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UnitOffset: 0x1234
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UnitSize: 0x4321
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Entries: []
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