[llvm] 8aaeadd - [ObjectYAML][DWARF] Implement the .debug_addr section.
Xing GUO via llvm-commits
llvm-commits at lists.llvm.org
Mon Jun 15 19:49:15 PDT 2020
Author: Xing GUO
Date: 2020-06-16T10:53:10+08:00
New Revision: 8aaeaddec8f3eb3bd535605c5ed7f33ee9806b03
URL: https://github.com/llvm/llvm-project/commit/8aaeaddec8f3eb3bd535605c5ed7f33ee9806b03
DIFF: https://github.com/llvm/llvm-project/commit/8aaeaddec8f3eb3bd535605c5ed7f33ee9806b03.diff
LOG: [ObjectYAML][DWARF] Implement the .debug_addr section.
This patch implements the .debug_addr section.
Reviewed By: jhenderson, grimar
Differential Revision: https://reviews.llvm.org/D81541
Added:
llvm/test/tools/yaml2obj/ELF/DWARF/debug-addr.yaml
Modified:
llvm/include/llvm/ObjectYAML/DWARFEmitter.h
llvm/include/llvm/ObjectYAML/DWARFYAML.h
llvm/lib/ObjectYAML/DWARFEmitter.cpp
llvm/lib/ObjectYAML/DWARFYAML.cpp
llvm/lib/ObjectYAML/ELFEmitter.cpp
Removed:
################################################################################
diff --git a/llvm/include/llvm/ObjectYAML/DWARFEmitter.h b/llvm/include/llvm/ObjectYAML/DWARFEmitter.h
index 23c8934662fd..716386992c29 100644
--- a/llvm/include/llvm/ObjectYAML/DWARFEmitter.h
+++ b/llvm/include/llvm/ObjectYAML/DWARFEmitter.h
@@ -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,
diff --git a/llvm/include/llvm/ObjectYAML/DWARFYAML.h b/llvm/include/llvm/ObjectYAML/DWARFYAML.h
index 7b2f28db1f0e..efa28d422431 100644
--- a/llvm/include/llvm/ObjectYAML/DWARFYAML.h
+++ b/llvm/include/llvm/ObjectYAML/DWARFYAML.h
@@ -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);
};
diff --git a/llvm/lib/ObjectYAML/DWARFEmitter.cpp b/llvm/lib/ObjectYAML/DWARFEmitter.cpp
index b373cfceff22..e11c18397146 100644
--- a/llvm/lib/ObjectYAML/DWARFEmitter.cpp
+++ b/llvm/lib/ObjectYAML/DWARFEmitter.cpp
@@ -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
diff --git a/llvm/lib/ObjectYAML/DWARFYAML.cpp b/llvm/lib/ObjectYAML/DWARFYAML.cpp
index bfb29181e3c6..dcfb27b126ec 100644
--- a/llvm/lib/ObjectYAML/DWARFYAML.cpp
+++ b/llvm/lib/ObjectYAML/DWARFYAML.cpp
@@ -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);
diff --git a/llvm/lib/ObjectYAML/ELFEmitter.cpp b/llvm/lib/ObjectYAML/ELFEmitter.cpp
index cb9d4f0c2b9d..c0fa611e5e2a 100644
--- a/llvm/lib/ObjectYAML/ELFEmitter.cpp
+++ b/llvm/lib/ObjectYAML/ELFEmitter.cpp
@@ -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");
diff --git a/llvm/test/tools/yaml2obj/ELF/DWARF/debug-addr.yaml b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-addr.yaml
new file mode 100644
index 000000000000..e9b553e5969b
--- /dev/null
+++ b/llvm/test/tools/yaml2obj/ELF/DWARF/debug-addr.yaml
@@ -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: []
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