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[ObjectYAML][DWARF] Implement the .debug_addr section.

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This patch implements the .debug_addr section.

Reviewed By: jhenderson, grimar

Differential Revision: https://reviews.llvm.org/D81541
This commit is contained in:
Xing GUO 2020-06-16 10:50:49 +08:00
parent 14315371b9
commit 972e60a052
6 changed files with 675 additions and 0 deletions
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1
include/llvm/ObjectYAML/DWARFEmitter.h
View File

@ -37,6 +37,7 @@ Error emitPubSection(raw_ostream &OS, const PubSection &Sect,
bool IsLittleEndian);
Error emitDebugInfo(raw_ostream &OS, const Data &DI);
Error emitDebugLine(raw_ostream &OS, const Data &DI);
Error emitDebugAddr(raw_ostream &OS, const Data &DI);
Expected<StringMap<std::unique_ptr<MemoryBuffer>>>
emitDebugSections(StringRef YAMLString, bool ApplyFixups = false,

25
include/llvm/ObjectYAML/DWARFYAML.h
View File

@ -160,6 +160,20 @@ struct LineTable {
std::vector<LineTableOpcode> Opcodes;
};
struct SegAddrPair {
yaml::Hex64 Segment;
yaml::Hex64 Address;
};
struct AddrTableEntry {
dwarf::DwarfFormat Format;
Optional<yaml::Hex64> Length;
yaml::Hex16 Version;
Optional<yaml::Hex8> AddrSize;
yaml::Hex8 SegSelectorSize;
std::vector<SegAddrPair> SegAddrPairs;
};
struct Data {
bool IsLittleEndian;
bool Is64bit;
@ -167,6 +181,7 @@ struct Data {
std::vector<StringRef> DebugStrings;
std::vector<ARange> ARanges;
std::vector<Ranges> DebugRanges;
std::vector<AddrTableEntry> DebugAddr;
Optional<PubSection> PubNames;
Optional<PubSection> PubTypes;
@ -198,6 +213,8 @@ LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::DWARFYAML::Entry)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::DWARFYAML::File)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::DWARFYAML::LineTable)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::DWARFYAML::LineTableOpcode)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::DWARFYAML::SegAddrPair)
LLVM_YAML_IS_SEQUENCE_VECTOR(llvm::DWARFYAML::AddrTableEntry)
namespace llvm {
namespace yaml {
@ -262,6 +279,14 @@ template <> struct MappingTraits<DWARFYAML::LineTable> {
static void mapping(IO &IO, DWARFYAML::LineTable &LineTable);
};
template <> struct MappingTraits<DWARFYAML::SegAddrPair> {
static void mapping(IO &IO, DWARFYAML::SegAddrPair &SegAddrPair);
};
template <> struct MappingTraits<DWARFYAML::AddrTableEntry> {
static void mapping(IO &IO, DWARFYAML::AddrTableEntry &AddrTable);
};
template <> struct MappingTraits<DWARFYAML::InitialLength> {
static void mapping(IO &IO, DWARFYAML::InitialLength &DWARF);
};

34
lib/ObjectYAML/DWARFEmitter.cpp
View File

@ -352,6 +352,40 @@ Error DWARFYAML::emitDebugLine(raw_ostream &OS, const DWARFYAML::Data &DI) {
return Error::success();
}
Error DWARFYAML::emitDebugAddr(raw_ostream &OS, const Data &DI) {
for (const AddrTableEntry &TableEntry : DI.DebugAddr) {
uint8_t AddrSize;
if (TableEntry.AddrSize)
AddrSize = *TableEntry.AddrSize;
else
AddrSize = DI.Is64bit ? 8 : 4;
uint64_t Length;
if (TableEntry.Length)
Length = (uint64_t)*TableEntry.Length;
else
// 2 (version) + 1 (address_size) + 1 (segment_selector_size) = 4
Length = 4 + (AddrSize + TableEntry.SegSelectorSize) *
TableEntry.SegAddrPairs.size();
writeInitialLength(TableEntry.Format, Length, OS, DI.IsLittleEndian);
writeInteger((uint16_t)TableEntry.Version, OS, DI.IsLittleEndian);
writeInteger((uint8_t)AddrSize, OS, DI.IsLittleEndian);
writeInteger((uint8_t)TableEntry.SegSelectorSize, OS, DI.IsLittleEndian);
for (const SegAddrPair &Pair : TableEntry.SegAddrPairs) {
if (TableEntry.SegSelectorSize != 0)
writeVariableSizedInteger(Pair.Segment, TableEntry.SegSelectorSize, OS,
DI.IsLittleEndian);
if (AddrSize != 0)
writeVariableSizedInteger(Pair.Address, AddrSize, OS,
DI.IsLittleEndian);
}
}
return Error::success();
}
using EmitFuncType = Error (*)(raw_ostream &, const DWARFYAML::Data &);
static Error

19
lib/ObjectYAML/DWARFYAML.cpp
View File

@ -32,6 +32,8 @@ SetVector<StringRef> DWARFYAML::Data::getUsedSectionNames() const {
SecNames.insert("debug_ranges");
if (!DebugLines.empty())
SecNames.insert("debug_line");
if (!DebugAddr.empty())
SecNames.insert("debug_addr");
return SecNames;
}
@ -52,6 +54,7 @@ void MappingTraits<DWARFYAML::Data>::mapping(IO &IO, DWARFYAML::Data &DWARF) {
IO.mapOptional("debug_gnu_pubtypes", DWARF.GNUPubTypes);
IO.mapOptional("debug_info", DWARF.CompileUnits);
IO.mapOptional("debug_line", DWARF.DebugLines);
IO.mapOptional("debug_addr", DWARF.DebugAddr);
IO.setContext(&oldContext);
}
@ -192,6 +195,22 @@ void MappingTraits<DWARFYAML::LineTable>::mapping(
IO.mapRequired("Opcodes", LineTable.Opcodes);
}
void MappingTraits<DWARFYAML::SegAddrPair>::mapping(
IO &IO, DWARFYAML::SegAddrPair &SegAddrPair) {
IO.mapOptional("Segment", SegAddrPair.Segment, 0);
IO.mapOptional("Address", SegAddrPair.Address, 0);
}
void MappingTraits<DWARFYAML::AddrTableEntry>::mapping(
IO &IO, DWARFYAML::AddrTableEntry &AddrTable) {
IO.mapOptional("Format", AddrTable.Format, dwarf::DWARF32);
IO.mapOptional("Length", AddrTable.Length);
IO.mapRequired("Version", AddrTable.Version);
IO.mapOptional("AddressSize", AddrTable.AddrSize);
IO.mapOptional("SegmentSelectorSize", AddrTable.SegSelectorSize, 0);
IO.mapOptional("Entries", AddrTable.SegAddrPairs);
}
void MappingTraits<DWARFYAML::InitialLength>::mapping(
IO &IO, DWARFYAML::InitialLength &InitialLength) {
IO.mapRequired("TotalLength", InitialLength.TotalLength);

2
lib/ObjectYAML/ELFEmitter.cpp
View File

@ -937,6 +937,8 @@ Expected<uint64_t> emitDWARF(typename ELFT::Shdr &SHeader, StringRef Name,
Err = DWARFYAML::emitDebugRanges(*OS, DWARF);
else if (Name == ".debug_line")
Err = DWARFYAML::emitDebugLine(*OS, DWARF);
else if (Name == ".debug_addr")
Err = DWARFYAML::emitDebugAddr(*OS, DWARF);
else
llvm_unreachable("unexpected emitDWARF() call");

594
test/tools/yaml2obj/ELF/DWARF/debug-addr.yaml Normal file
View File

@ -0,0 +1,594 @@
## Test that yaml2obj emits .debug_addr section.
## a) Generate and verify a little endian DWARF32 .debug_addr section in a 64-bit object file.
# RUN: yaml2obj --docnum=1 -DENDIAN=ELFDATA2LSB %s -o %t1.dwarf32.le.o
# RUN: llvm-readobj --sections --section-data %t1.dwarf32.le.o | \
# RUN: FileCheck %s -DSIZE=264 -DADDRALIGN=1 --check-prefixes=SHDR,DWARF32-LE
# SHDR: Index: 1
# SHDR-NEXT: Name: .debug_addr (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
# DWARF32-LE-NEXT: SectionData (
# DWARF32-LE-NEXT: 0000: 0C000000 05000400 34120000 78560000
## | | | | | |
## | | | | | +------- address (4-byte)
## | | | | +------- address (4-byte)
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 1) unit_length (4-byte)
##
# DWARF32-LE-NEXT: 0010: 14000000 05000800 21430000 00000000
## | | | | |
## | | | | +---------------- address (8-byte)
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 2) unit_length (4-byte)
##
# DWARF32-LE-NEXT: 0020: 65870000 00000000 0C000000 05000004
## | | | | |
## | | | | +- segment_selector_size (1-byte)
## | | | +- address_size (1-byte)
## | | +--- version (2-byte)
## | +------- 3) unit_length (4-byte)
## +---------------- address (8-byte)
##
# DWARF32-LE-NEXT: 0030: 34120000 78560000 14000000 05000008
## | | | | | |
## | | | | | +- segment_selector_size (1-byte)
## | | | | +- address_size (1-byte)
## | | | +--- version (2-byte)
## | | +------- 4) unit_length (4-byte)
## | +------- segment (4-byte)
## +------- segment (4-byte)
##
# DWARF32-LE-NEXT: 0040: 21430000 00000000 65870000 00000000
## | |
## | +---------------- segment (8-byte)
## +---------------- segment (8-byte)
##
# DWARF32-LE-NEXT: 0050: 1C000000 05000404 34120000 78560000
## | | | | | |
## | | | | | +------- address (4-byte)
## | | | | +------- segment (4-byte)
## | | | +- segment_selector_size (4-byte)
## | | +- address_size (4-byte)
## | +--- version (2-byte)
## +------- 5) unit_length (4-byte)
##
# DWARF32-LE-NEXT: 0060: 21430000 00000000 00000000 21430000
## | | | |
## | | | +------- address (4-byte)
## | | +------- segment (4-byte)
## | +------- address (4-byte)
## +------- segment (4-byte)
##
# DWARF32-LE-NEXT: 0070: 34000000 05000808 34120000 00000000
## | | | | |
## | | | | +---------------- segment (8-byte)
## | | | +- segment_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 6) unit_length (4-byte)
##
# DWARF32-LE-NEXT: 0080: 78560000 00000000 21430000 00000000
## | |
## | +---------------- segment (8-byte)
## +---------------- address (8-byte)
##
# DWARF32-LE-NEXT: 0090: 00000000 00000000 00000000 00000000
## | +---------------- segment (8-byte)
## +---------------- address (8-byte)
##
# DWARF32-LE-NEXT: 00A0: 21430000 00000000 28000000 05000408
## | | | | |
## | | | | +- segment_size (1-byte)
## | | | +- address_size (1-byte)
## | | +--- version (2-byte)
## | +------- 7) unit_length (4-byte)
## +---------------- address (8-byte)
##
# DWARF32-LE-NEXT: 00B0: 34120000 00000000 78560000 21430000
## | | |
## | | +------- segment (8-byte)
## | +------- address (4-byte)
## +---------------- segment (8-byte)
##
# DWARF32-LE-NEXT: 00C0: 00000000 00000000 00000000 00000000
## | | +---------------- segment (8-byte)
## | +------- address (4-btye)
## +------- higher 4-byte of segment
##
# DWARF32-LE-NEXT: 00D0: 21430000 28000000 05000804 34120000
## | | | | | +------- segment (4-byte)
## | | | | +- segment_size (1-byte)
## | | | +- address_size (1-byte)
## | | +--- version (2-byte)
## | +------- 8) unit_length (4-byte)
## +------- address (4-byte)
##
# DWARF32-LE-NEXT: 00E0: 78560000 00000000 21430000 00000000
## | | |
## | | +------- address (8-byte)
## | +------- segment (4-byte)
## +---------------- address (8-byte)
##
# DWARF32-LE-NEXT: 00F0: 00000000 00000000 21430000 00000000
## | | |
## | | +---------------- address (8-byte)
## | +------- segment (4-byte)
## +------- higher 4-byte of address
##
# DWARF32-LE-NEXT: 0100: 34120000 02000400
## | | | |
## | | | +- segment_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 9) unit_length (4-byte)
# DWARF32-LE-NEXT: )
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: [[ENDIAN]]
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_addr:
## 1) Only address (4-byte) exists.
- Version: 5
AddressSize: 0x04
Entries:
- Address: 0x1234
- Address: 0x5678
## 2) Only address (8-byte) exists (AddressSize is derived from FileHeader).
- Version: 5
Entries:
- Address: 0x4321
- Address: 0x8765
## 3) Only segment (4-byte) exists.
- Version: 5
AddressSize: 0x00
SegmentSelectorSize: 0x04
Entries:
- Segment: 0x1234
- Segment: 0x5678
## 4) Only segment (8-byte) exists.
- Version: 5
AddressSize: 0x00
SegmentSelectorSize: 0x08
Entries:
- Segment: 0x4321
- Segment: 0x8765
## 5) Both address (4-byte) and segment (4-byte) exist.
- Version: 5
AddressSize: 0x04
SegmentSelectorSize: 0x04
Entries:
- Segment: 0x1234
Address: 0x5678
- Segment: 0x4321
## Segment exists, while address takes the default value 0x00.
- Address: 0x4321
## Address exists, while segment takes the default value 0x00.
## 6) Both address (8-byte) and segment (8-byte) exist (AddressSize is derived from FileHeader).
- Version: 5
SegmentSelectorSize: 0x08
Entries:
- Segment: 0x1234
Address: 0x5678
- Segment: 0x4321
## Segment exists, while address takes the default value 0x00.
- Address: 0x4321
## Address exists, while segment takes the default value 0x00.
## 7) Both address (4-byte) and segment (8-byte) exist.
- Version: 5
AddressSize: 0x04
SegmentSelectorSize: 0x08
Entries:
- Segment: 0x1234
Address: 0x5678
- Segment: 0x4321
## Segment exists, while address takes the default value 0x00.
- Address: 0x4321
## Address exists, while segment takes the default value 0x00.
## 8) Both address (8-byte) and segment (4-byte) exist (AddressSize is derived from FileHeader).
- Version: 5
SegmentSelectorSize: 0x04
Entries:
- Segment: 0x1234
Address: 0x5678
- Segment: 0x4321
## Segment exists, while address takes the default value 0x00.
- Address: 0x4321
## Address exists, while segment takes the default value 0x00.
## 9) Explicitly assign a value to 'Length'.
- Length: 0x1234
Version: 0x02
AddressSize: 0x04
SegmentSelectorSize: 0x00
Entries: []
## b) Generate and verify a big endian DWARF32 .debug_addr section.
# RUN: yaml2obj --docnum=1 -DENDIAN=ELFDATA2MSB %s -o %t1.dwarf32.be.o
# RUN: llvm-readobj --sections --section-data %t1.dwarf32.be.o | \
# RUN: FileCheck %s -DSIZE=264 -DADDRALIGN=1 --check-prefixes=SHDR,DWARF32-BE
# DWARF32-BE-NEXT: SectionData (
# DWARF32-BE-NEXT: 0000: 0000000C 00050400 00001234 00005678
## | | | | | |
## | | | | | +------- address (4-byte)
## | | | | +------- address (4-byte)
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 1) unit_length (4-byte)
##
# DWARF32-BE-NEXT: 0010: 00000014 00050800 00000000 00004321
## | | | | |
## | | | | +---------------- address (8-byte)
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 2) unit_length (4-byte)
##
# DWARF32-BE-NEXT: 0020: 00000000 00008765 0000000C 00050004
## | | | | |
## | | | | +- segment_selector_size (1-byte)
## | | | +- address_size (1-byte)
## | | +--- version (2-byte)
## | +------- 3) unit_length (4-byte)
## +---------------- address (8-byte)
##
# DWARF32-BE-NEXT: 0030: 00001234 00005678 00000014 00050008
## | | | | | |
## | | | | | +- segment_selector_size (1-byte)
## | | | | +- address_size (1-byte)
## | | | +--- version (2-byte)
## | | +------- 4) unit_length (4-byte)
## | +------- segment (4-byte)
## +------- segment (4-byte)
##
# DWARF32-BE-NEXT: 0040: 00000000 00004321 00000000 00008765
## | |
## | +---------------- segment (8-byte)
## +---------------- segment (8-byte)
##
# DWARF32-BE-NEXT: 0050: 0000001C 00050404 00001234 00005678
## | | | | | |
## | | | | | +------- address (4-byte)
## | | | | +------- segment (4-byte)
## | | | +- segment_selector_size (4-byte)
## | | +- address_size (4-byte)
## | +--- version (2-byte)
## +------- 5) unit_length (4-byte)
##
# DWARF32-BE-NEXT: 0060: 00004321 00000000 00000000 00004321
## | | | |
## | | | +------- address (4-byte)
## | | +------- segment (4-byte)
## | +------- address (4-byte)
## +------- segment (4-byte)
##
# DWARF32-BE-NEXT: 0070: 00000034 00050808 00000000 00001234
## | | | | |
## | | | | +---------------- segment (8-byte)
## | | | +- segment_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 6) unit_length (4-byte)
##
# DWARF32-BE-NEXT: 0080: 00000000 00005678 00000000 00004321
## | |
## | +---------------- segment (8-byte)
## +---------------- address (8-byte)
##
# DWARF32-BE-NEXT: 0090: 00000000 00000000 00000000 00000000
## | |
## | +---------------- segment (8-byte)
## +---------------- address (8-byte)
##
# DWARF32-BE-NEXT: 00A0: 00000000 00004321 00000028 00050408
## | | | | |
## | | | | +- segment_size (1-byte)
## | | | +- address_size (1-byte)
## | | +--- version (2-byte)
## | +------- 7) unit_length (4-byte)
## +---------------- address (8-byte)
##
# DWARF32-BE-NEXT: 00B0: 00000000 00001234 00005678 00000000
## | | |
## | | +------- segment (8-byte)
## | +------- address (4-byte)
## +---------------- segment (8-byte)
##
# DWARF32-BE-NEXT: 00C0: 00004321 00000000 00000000 00000000
## | | |
## | | +---------------- segment (8-byte)
## | +------- address (4-btye)
## +------- lower 4-byte of segment
##
# DWARF32-BE-NEXT: 00D0: 00004321 00000028 00050804 00001234
## | | | | | |
## | | | | | +------- segment (4-byte)
## | | | | +- segment_size (1-byte)
## | | | +- address_size (1-byte)
## | | +--- version (2-byte)
## | +------- 8) unit_length (4-byte)
## +------- address (4-byte)
##
# DWARF32-BE-NEXT: 00E0: 00000000 00005678 00004321 00000000
## | | |
## | | +------- address (8-byte)
## | +------- segment (4-byte)
## +---------------- address (8-byte)
##
# DWARF32-BE-NEXT: 00F0: 00000000 00000000 00000000 00004321
## | | |
## | | +---------------- address (8-byte)
## | +------- segment (4-byte)
## +------- lower 4-byte of address
##
# DWARF32-BE-NEXT: 0100: 00001234 00020400
## | | | |
## | | | +- segment_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- 9) unit_length (4-byte)
# DWARF32-BE-NEXT: )
## c) Generate and verify a little endian DWARF64 .debug_addr section.
# RUN: yaml2obj --docnum=2 -DENDIAN=ELFDATA2LSB %s -o %t2.dwarf64.le.o
# RUN: llvm-readobj --sections --section-data %t2.dwarf64.le.o | \
# RUN: FileCheck %s -DSIZE=56 -DADDRALIGN=1 --check-prefixes=SHDR,DWARF64-LE
# DWARF64-LE-NEXT: SectionData (
# DWARF64-LE-NEXT: 0000: FFFFFFFF 0C000000 00000000 05000400
## | | | |
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------------------------- unit_length (12-byte)
##
# DWARF64-LE-NEXT: 0010: 34120000 78560000 FFFFFFFF 14000000
## | | |
## | | +---------------- unit_length (12-byte)
## | +------- address (4-byte)
## +------- address (4-byte)
##
# DWARF64-LE-NEXT: 0020: 00000000 05000800 21430000 00000000
## | | | | |
## | | | | +---------------- address (8-byte)
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- last 4-byte of unit_length
##
# DWARF64-LE-NEXT: 0030: 65870000 00000000
## |
## +---------------- address (8-byte)
# DWARF64-LE-NEXT: )
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: [[ENDIAN]]
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_addr:
- Format: DWARF64
Version: 5
AddressSize: 0x04
Entries:
- Address: 0x1234
- Address: 0x5678
- Format: DWARF64
Version: 5
Entries:
- Address: 0x4321
- Address: 0x8765
## d) Generate and verify a big endian DWARF64 .debug_addr section.
# RUN: yaml2obj --docnum=2 -DENDIAN=ELFDATA2MSB %s -o %t2.dwarf64.be.o
# RUN: llvm-readobj --sections --section-data %t2.dwarf64.be.o | \
# RUN: FileCheck %s -DSIZE=56 -DADDRALIGN=1 --check-prefixes=SHDR,DWARF64-BE
# DWARF64-BE-NEXT: SectionData (
# DWARF64-BE-NEXT: 0000: FFFFFFFF 00000000 0000000C 00050400
## | | | |
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------------------------- unit_length (12-byte)
##
# DWARF64-BE-NEXT: 0010: 00001234 00005678 FFFFFFFF 00000000
## | | |
## | | +---------------- unit_length (12-byte)
## | +------- address (4-byte)
## +------- address (4-byte)
##
# DWARF64-BE-NEXT: 0020: 00000014 00050800 00000000 00004321
## | | | | |
## | | | | +---------------- address (8-byte)
## | | | +- segment_selector_size (1-byte)
## | | +- address_size (1-byte)
## | +--- version (2-byte)
## +------- last 4-byte of unit_length
##
# DWARF64-BE-NEXT: 0030: 00000000 00008765
## |
## +---------------- address (8-byte)
# DWARF64-BE-NEXT: )
## e) Test that yaml2obj emits an error message if the 'Version' fields is missing.
# RUN: not yaml2obj --docnum=3 %s 2>&1 | FileCheck %s --check-prefix=MISSING-VERSION
# MISSING-VERSION: error: missing required key 'Version'
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
DWARF:
debug_addr:
- Entries: []
## f) Generate the .debug_addr section from raw section content.
# RUN: yaml2obj --docnum=4 %s -o %t4.o
# RUN: llvm-readobj --sections --section-data %t4.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
Machine: EM_X86_64
Sections:
- Name: .debug_addr
Type: SHT_PROGBITS
Content: "112233"
## g) Generate the .debug_addr section when the "Size" is specified.
# RUN: yaml2obj --docnum=5 %s -o %t5.o
# RUN: llvm-readelf --hex-dump=.debug_addr %t5.o | FileCheck %s --check-prefix=SIZE
# SIZE: Hex dump of section '.debug_addr':
# SIZE-NEXT: 0x00000000 00000000 00000000 00000000 00000000 ................
# SIZE-EMPTY:
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .debug_addr
Type: SHT_PROGBITS
Size: 0x10
## h) Test that yaml2obj emits an error message when both the "Size" and the
## "debug_addr" entry are specified at the same time.
# RUN: not yaml2obj --docnum=6 %s 2>&1 | FileCheck %s --check-prefix=ERROR
# ERROR: yaml2obj: error: cannot specify section '.debug_addr' 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_addr
Type: SHT_PROGBITS
Size: 0x10
DWARF:
debug_addr:
- Version: 5
Entries: []
## i) Test that yaml2obj emits an error message when both the "Content" and the
## "debug_addr" entry are specified at the same time.
# RUN: not yaml2obj --docnum=7 %s 2>&1 | FileCheck %s --check-prefix=ERROR
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .debug_addr
Type: SHT_PROGBITS
Content: "00"
DWARF:
debug_addr:
- Version: 5
Entries: []
## j) Test that all the properties can be overridden by the section header when
## the "debug_addr" entry doesn't exist.
# RUN: yaml2obj --docnum=8 %s -o %t8.o
# RUN: llvm-readelf --sections %t8.o | FileCheck %s --check-prefix=OVERRIDDEN
# OVERRIDDEN: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
# OVERRIDDEN: [ 1] .debug_addr 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
Machine: EM_X86_64
Sections:
- Name: .debug_addr
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_addr.
Type: SHT_STRTAB
## k) Test that all the properties can be overridden by the section header when
## the "debug_addr" entry exists.
# RUN: yaml2obj --docnum=9 %s -o %t9.o
# RUN: llvm-readelf --sections %t9.o | FileCheck %s --check-prefix=OVERRIDDEN
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_EXEC
Machine: EM_X86_64
Sections:
- Name: .debug_addr
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_addr.
Type: SHT_STRTAB
DWARF:
debug_addr:
- Version: 5
Entries: []