[llvm] 1fbe8a8 - [DWARF] Add support for parsing/dumping section indices in location lists
Pavel Labath via llvm-commits
llvm-commits at lists.llvm.org
Tue Dec 3 02:48:29 PST 2019
Author: Pavel Labath
Date: 2019-12-03T11:48:28+01:00
New Revision: 1fbe8a82e1ea0168ee10079a18140135222d1d2c
URL: https://github.com/llvm/llvm-project/commit/1fbe8a82e1ea0168ee10079a18140135222d1d2c
DIFF: https://github.com/llvm/llvm-project/commit/1fbe8a82e1ea0168ee10079a18140135222d1d2c.diff
LOG: [DWARF] Add support for parsing/dumping section indices in location lists
Summary:
This does exactly what it says on the box. The only small gotcha is the
section index computation for offset_pair entries, which can use either
the base address section, or the section from the offset_pair entry.
This is to support both the cases where the base address is relocated
(points to the base of the CU, typically), and the case where the base
address is a constant (typically zero) and relocations are on the
offsets themselves.
Reviewers: dblaikie, JDevlieghere, aprantl, SouraVX
Subscribers: hiraditya, llvm-commits, probinson
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70540
Added:
Modified:
llvm/include/llvm/DebugInfo/DWARF/DWARFDebugLoc.h
llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
llvm/lib/DebugInfo/DWARF/DWARFDebugLoc.cpp
llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
llvm/test/DebugInfo/X86/dwarfdump-debug-loc-simple.test
llvm/test/tools/llvm-dwarfdump/X86/debug_loclists.s
Removed:
################################################################################
diff --git a/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugLoc.h b/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugLoc.h
index 358cacb65afd..3b141304f85f 100644
--- a/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugLoc.h
+++ b/llvm/include/llvm/DebugInfo/DWARF/DWARFDebugLoc.h
@@ -34,6 +34,9 @@ struct DWARFLocationEntry {
/// The second value of the location entry (if applicable).
uint64_t Value1;
+ /// The index of the section this entry is relative to (if applicable).
+ uint64_t SectionIndex;
+
/// The location expression itself (if applicable).
SmallVector<uint8_t, 4> Loc;
};
@@ -60,8 +63,9 @@ class DWARFLocationTable {
/// updated to point past the end of the current list).
bool dumpLocationList(uint64_t *Offset, raw_ostream &OS,
Optional<object::SectionedAddress> BaseAddr,
- const MCRegisterInfo *MRI, DWARFUnit *U,
- DIDumpOptions DumpOpts, unsigned Indent) const;
+ const MCRegisterInfo *MRI, const DWARFObject &Obj,
+ DWARFUnit *U, DIDumpOptions DumpOpts,
+ unsigned Indent) const;
Error visitAbsoluteLocationList(
uint64_t Offset, Optional<object::SectionedAddress> BaseAddr,
@@ -72,7 +76,8 @@ class DWARFLocationTable {
DWARFDataExtractor Data;
virtual void dumpRawEntry(const DWARFLocationEntry &Entry, raw_ostream &OS,
- unsigned Indent) const = 0;
+ unsigned Indent, DIDumpOptions DumpOpts,
+ const DWARFObject &Obj) const = 0;
};
class DWARFDebugLoc final : public DWARFLocationTable {
@@ -98,7 +103,8 @@ class DWARFDebugLoc final : public DWARFLocationTable {
: DWARFLocationTable(std::move(Data)) {}
/// Print the location lists found within the debug_loc section.
- void dump(raw_ostream &OS, const MCRegisterInfo *RegInfo, DIDumpOptions DumpOpts,
+ void dump(raw_ostream &OS, const MCRegisterInfo *RegInfo,
+ const DWARFObject &Obj, DIDumpOptions DumpOpts,
Optional<uint64_t> Offset) const;
Error visitLocationList(
@@ -107,7 +113,8 @@ class DWARFDebugLoc final : public DWARFLocationTable {
protected:
void dumpRawEntry(const DWARFLocationEntry &Entry, raw_ostream &OS,
- unsigned Indent) const override;
+ unsigned Indent, DIDumpOptions DumpOpts,
+ const DWARFObject &Obj) const override;
};
class DWARFDebugLoclists final : public DWARFLocationTable {
@@ -121,11 +128,13 @@ class DWARFDebugLoclists final : public DWARFLocationTable {
/// Dump all location lists within the given range.
void dumpRange(uint64_t StartOffset, uint64_t Size, raw_ostream &OS,
- const MCRegisterInfo *MRI, DIDumpOptions DumpOpts);
+ const MCRegisterInfo *MRI, const DWARFObject &Obj,
+ DIDumpOptions DumpOpts);
protected:
void dumpRawEntry(const DWARFLocationEntry &Entry, raw_ostream &OS,
- unsigned Indent) const override;
+ unsigned Indent, DIDumpOptions DumpOpts,
+ const DWARFObject &Obj) const override;
private:
uint16_t Version;
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
index 9d662da31b63..b268d2e6aef5 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
@@ -288,6 +288,7 @@ static void dumpRnglistsSection(
static void dumpLoclistsSection(raw_ostream &OS, DIDumpOptions DumpOpts,
DWARFDataExtractor Data,
const MCRegisterInfo *MRI,
+ const DWARFObject &Obj,
Optional<uint64_t> DumpOffset) {
uint64_t Offset = 0;
@@ -306,13 +307,13 @@ static void dumpLoclistsSection(raw_ostream &OS, DIDumpOptions DumpOpts,
if (DumpOffset) {
if (DumpOffset >= Offset && DumpOffset < EndOffset) {
Offset = *DumpOffset;
- Loc.dumpLocationList(&Offset, OS, /*BaseAddr=*/None, MRI, nullptr,
+ Loc.dumpLocationList(&Offset, OS, /*BaseAddr=*/None, MRI, Obj, nullptr,
DumpOpts, /*Indent=*/0);
OS << "\n";
return;
}
} else {
- Loc.dumpRange(Offset, EndOffset - Offset, OS, MRI, DumpOpts);
+ Loc.dumpRange(Offset, EndOffset - Offset, OS, MRI, Obj, DumpOpts);
}
Offset = EndOffset;
}
@@ -394,21 +395,21 @@ void DWARFContext::dump(
if (const auto *Off = shouldDump(Explicit, ".debug_loc", DIDT_ID_DebugLoc,
DObj->getLocSection().Data)) {
- getDebugLoc()->dump(OS, getRegisterInfo(), LLDumpOpts, *Off);
+ getDebugLoc()->dump(OS, getRegisterInfo(), *DObj, LLDumpOpts, *Off);
}
if (const auto *Off =
shouldDump(Explicit, ".debug_loclists", DIDT_ID_DebugLoclists,
DObj->getLoclistsSection().Data)) {
DWARFDataExtractor Data(*DObj, DObj->getLoclistsSection(), isLittleEndian(),
0);
- dumpLoclistsSection(OS, LLDumpOpts, Data, getRegisterInfo(), *Off);
+ dumpLoclistsSection(OS, LLDumpOpts, Data, getRegisterInfo(), *DObj, *Off);
}
if (const auto *Off =
shouldDump(ExplicitDWO, ".debug_loclists.dwo", DIDT_ID_DebugLoclists,
DObj->getLoclistsDWOSection().Data)) {
DWARFDataExtractor Data(*DObj, DObj->getLoclistsDWOSection(),
isLittleEndian(), 0);
- dumpLoclistsSection(OS, LLDumpOpts, Data, getRegisterInfo(), *Off);
+ dumpLoclistsSection(OS, LLDumpOpts, Data, getRegisterInfo(), *DObj, *Off);
}
if (const auto *Off =
@@ -420,11 +421,11 @@ void DWARFContext::dump(
if (*Off) {
uint64_t Offset = **Off;
Loc.dumpLocationList(&Offset, OS,
- /*BaseAddr=*/None, getRegisterInfo(), nullptr,
+ /*BaseAddr=*/None, getRegisterInfo(), *DObj, nullptr,
LLDumpOpts, /*Indent=*/0);
OS << "\n";
} else {
- Loc.dumpRange(0, Data.getData().size(), OS, getRegisterInfo(),
+ Loc.dumpRange(0, Data.getData().size(), OS, getRegisterInfo(), *DObj,
LLDumpOpts);
}
}
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDebugLoc.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDebugLoc.cpp
index baa35eb813cf..8f373e2f551b 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDebugLoc.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDebugLoc.cpp
@@ -66,23 +66,24 @@ DWARFLocationInterpreter::Interpret(const DWARFLocationEntry &E) {
LowPC->SectionIndex},
E.Loc};
}
- case dwarf::DW_LLE_offset_pair:
+ case dwarf::DW_LLE_offset_pair: {
if (!Base) {
return createStringError(
inconvertibleErrorCode(),
"Unable to resolve DW_LLE_offset_pair: base address unknown");
}
- return DWARFLocationExpression{DWARFAddressRange{Base->Address + E.Value0,
- Base->Address + E.Value1,
- Base->SectionIndex},
- E.Loc};
+ DWARFAddressRange Range{Base->Address + E.Value0, Base->Address + E.Value1,
+ Base->SectionIndex};
+ if (Range.SectionIndex == SectionedAddress::UndefSection)
+ Range.SectionIndex = E.SectionIndex;
+ return DWARFLocationExpression{Range, E.Loc};
+ }
case dwarf::DW_LLE_base_address:
- Base = SectionedAddress{E.Value0, SectionedAddress::UndefSection};
+ Base = SectionedAddress{E.Value0, E.SectionIndex};
return None;
case dwarf::DW_LLE_start_length:
return DWARFLocationExpression{
- DWARFAddressRange{E.Value0, E.Value0 + E.Value1,
- SectionedAddress::UndefSection},
+ DWARFAddressRange{E.Value0, E.Value0 + E.Value1, E.SectionIndex},
E.Loc};
default:
llvm_unreachable("unreachable locations list kind");
@@ -104,7 +105,8 @@ static void dumpExpression(raw_ostream &OS, ArrayRef<uint8_t> Data,
bool DWARFLocationTable::dumpLocationList(uint64_t *Offset, raw_ostream &OS,
Optional<SectionedAddress> BaseAddr,
const MCRegisterInfo *MRI,
- DWARFUnit *U, DIDumpOptions DumpOpts,
+ const DWARFObject &Obj, DWARFUnit *U,
+ DIDumpOptions DumpOpts,
unsigned Indent) const {
DWARFLocationInterpreter Interp(
BaseAddr, [U](uint32_t Index) -> Optional<SectionedAddress> {
@@ -116,7 +118,7 @@ bool DWARFLocationTable::dumpLocationList(uint64_t *Offset, raw_ostream &OS,
Error E = visitLocationList(Offset, [&](const DWARFLocationEntry &E) {
Expected<Optional<DWARFLocationExpression>> Loc = Interp.Interpret(E);
if (!Loc || DumpOpts.DisplayRawContents)
- dumpRawEntry(E, OS, Indent);
+ dumpRawEntry(E, OS, Indent, DumpOpts, Obj);
if (Loc && *Loc) {
OS << "\n";
OS.indent(Indent);
@@ -125,10 +127,7 @@ bool DWARFLocationTable::dumpLocationList(uint64_t *Offset, raw_ostream &OS,
DIDumpOptions RangeDumpOpts(DumpOpts);
RangeDumpOpts.DisplayRawContents = false;
- const DWARFObject *Obj = nullptr;
- if (U)
- Obj = &U->getContext().getDWARFObj();
- Loc.get()->Range->dump(OS, Data.getAddressSize(), RangeDumpOpts, Obj);
+ Loc.get()->Range->dump(OS, Data.getAddressSize(), RangeDumpOpts, &Obj);
}
if (!Loc)
consumeError(Loc.takeError());
@@ -167,12 +166,12 @@ Error DWARFLocationTable::visitAbsoluteLocationList(
}
void DWARFDebugLoc::dump(raw_ostream &OS, const MCRegisterInfo *MRI,
- DIDumpOptions DumpOpts,
+ const DWARFObject &Obj, DIDumpOptions DumpOpts,
Optional<uint64_t> DumpOffset) const {
auto BaseAddr = None;
unsigned Indent = 12;
if (DumpOffset) {
- dumpLocationList(&*DumpOffset, OS, BaseAddr, MRI, nullptr, DumpOpts,
+ dumpLocationList(&*DumpOffset, OS, BaseAddr, MRI, Obj, nullptr, DumpOpts,
Indent);
} else {
uint64_t Offset = 0;
@@ -182,7 +181,7 @@ void DWARFDebugLoc::dump(raw_ostream &OS, const MCRegisterInfo *MRI,
OS << Separator;
Separator = "\n";
- CanContinue = dumpLocationList(&Offset, OS, BaseAddr, MRI, nullptr,
+ CanContinue = dumpLocationList(&Offset, OS, BaseAddr, MRI, Obj, nullptr,
DumpOpts, Indent);
OS << '\n';
}
@@ -194,8 +193,9 @@ Error DWARFDebugLoc::visitLocationList(
function_ref<bool(const DWARFLocationEntry &)> Callback) const {
DataExtractor::Cursor C(*Offset);
while (true) {
+ uint64_t SectionIndex;
uint64_t Value0 = Data.getRelocatedAddress(C);
- uint64_t Value1 = Data.getRelocatedAddress(C);
+ uint64_t Value1 = Data.getRelocatedAddress(C, &SectionIndex);
DWARFLocationEntry E;
@@ -208,10 +208,12 @@ Error DWARFDebugLoc::visitLocationList(
} else if (Value0 == (Data.getAddressSize() == 4 ? -1U : -1ULL)) {
E.Kind = dwarf::DW_LLE_base_address;
E.Value0 = Value1;
+ E.SectionIndex = SectionIndex;
} else {
E.Kind = dwarf::DW_LLE_offset_pair;
E.Value0 = Value0;
E.Value1 = Value1;
+ E.SectionIndex = SectionIndex;
unsigned Bytes = Data.getU16(C);
// A single location description describing the location of the object...
Data.getU8(C, E.Loc, Bytes);
@@ -227,7 +229,9 @@ Error DWARFDebugLoc::visitLocationList(
}
void DWARFDebugLoc::dumpRawEntry(const DWARFLocationEntry &Entry,
- raw_ostream &OS, unsigned Indent) const {
+ raw_ostream &OS, unsigned Indent,
+ DIDumpOptions DumpOpts,
+ const DWARFObject &Obj) const {
uint64_t Value0, Value1;
switch (Entry.Kind) {
case dwarf::DW_LLE_base_address:
@@ -248,6 +252,7 @@ void DWARFDebugLoc::dumpRawEntry(const DWARFLocationEntry &Entry,
OS.indent(Indent);
OS << '(' << format_hex(Value0, 2 + Data.getAddressSize() * 2) << ", "
<< format_hex(Value1, 2 + Data.getAddressSize() * 2) << ')';
+ DWARFFormValue::dumpAddressSection(Obj, OS, DumpOpts, Entry.SectionIndex);
}
Error DWARFDebugLoclists::visitLocationList(
@@ -276,12 +281,13 @@ Error DWARFDebugLoclists::visitLocationList(
case dwarf::DW_LLE_offset_pair:
E.Value0 = Data.getULEB128(C);
E.Value1 = Data.getULEB128(C);
+ E.SectionIndex = SectionedAddress::UndefSection;
break;
case dwarf::DW_LLE_base_address:
- E.Value0 = Data.getRelocatedAddress(C);
+ E.Value0 = Data.getRelocatedAddress(C, &E.SectionIndex);
break;
case dwarf::DW_LLE_start_length:
- E.Value0 = Data.getRelocatedAddress(C);
+ E.Value0 = Data.getRelocatedAddress(C, &E.SectionIndex);
E.Value1 = Data.getULEB128(C);
break;
case dwarf::DW_LLE_startx_endx:
@@ -310,7 +316,9 @@ Error DWARFDebugLoclists::visitLocationList(
}
void DWARFDebugLoclists::dumpRawEntry(const DWARFLocationEntry &Entry,
- raw_ostream &OS, unsigned Indent) const {
+ raw_ostream &OS, unsigned Indent,
+ DIDumpOptions DumpOpts,
+ const DWARFObject &Obj) const {
size_t MaxEncodingStringLength = 0;
#define HANDLE_DW_LLE(ID, NAME) \
MaxEncodingStringLength = std::max(MaxEncodingStringLength, \
@@ -339,10 +347,19 @@ void DWARFDebugLoclists::dumpRawEntry(const DWARFLocationEntry &Entry,
break;
}
OS << ')';
+ switch (Entry.Kind) {
+ case dwarf::DW_LLE_start_length:
+ case dwarf::DW_LLE_base_address:
+ DWARFFormValue::dumpAddressSection(Obj, OS, DumpOpts, Entry.SectionIndex);
+ break;
+ default:
+ break;
+ }
}
void DWARFDebugLoclists::dumpRange(uint64_t StartOffset, uint64_t Size,
raw_ostream &OS, const MCRegisterInfo *MRI,
+ const DWARFObject &Obj,
DIDumpOptions DumpOpts) {
if (!Data.isValidOffsetForDataOfSize(StartOffset, Size)) {
OS << "Invalid dump range\n";
@@ -355,8 +372,8 @@ void DWARFDebugLoclists::dumpRange(uint64_t StartOffset, uint64_t Size,
OS << Separator;
Separator = "\n";
- CanContinue = dumpLocationList(&Offset, OS, /*BaseAddr=*/None, MRI, nullptr,
- DumpOpts, /*Indent=*/12);
+ CanContinue = dumpLocationList(&Offset, OS, /*BaseAddr=*/None, MRI, Obj,
+ nullptr, DumpOpts, /*Indent=*/12);
OS << '\n';
}
}
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
index cc3d021b0ddb..404bc13b178a 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
@@ -96,7 +96,8 @@ static void dumpLocation(raw_ostream &OS, DWARFFormValue &FormValue,
return;
}
U->getLocationTable().dumpLocationList(&Offset, OS, U->getBaseAddress(),
- MRI, U, DumpOpts, Indent);
+ MRI, Ctx.getDWARFObj(), U, DumpOpts,
+ Indent);
return;
}
diff --git a/llvm/test/DebugInfo/X86/dwarfdump-debug-loc-simple.test b/llvm/test/DebugInfo/X86/dwarfdump-debug-loc-simple.test
index 15d688ea72d4..29d27982acce 100644
--- a/llvm/test/DebugInfo/X86/dwarfdump-debug-loc-simple.test
+++ b/llvm/test/DebugInfo/X86/dwarfdump-debug-loc-simple.test
@@ -4,19 +4,19 @@ Note: the input file was generated from Inputs/dwarfdump-test-loc-list-32bit.elf
CHECK: .debug_info
CHECK: DW_AT_name{{.*}}"f"
CHECK: DW_AT_location{{.*}}([[F_LOC:0x[0-9a-f]*]]
-CHECK-NEXT: [0x00000000, 0x00000023): DW_OP_reg1 ECX
-CHECK-NEXT: [0x00000023, 0x0000005d): DW_OP_breg5 EBP-16)
+CHECK-NEXT: [0x00000000, 0x00000023) ".text": DW_OP_reg1 ECX
+CHECK-NEXT: [0x00000023, 0x0000005d) ".text": DW_OP_breg5 EBP-16)
CHECK: DW_AT_name{{.*}}"g"
CHECK: DW_AT_location{{.*}}([[G_LOC:0x[0-9a-f]*]]
-CHECK-NEXT: [0x00000000, 0x00000020): DW_OP_reg0 EAX
-CHECK-NEXT: [0x00000020, 0x0000005d): DW_OP_breg5 EBP-12)
+CHECK-NEXT: [0x00000000, 0x00000020) ".text": DW_OP_reg0 EAX
+CHECK-NEXT: [0x00000020, 0x0000005d) ".text": DW_OP_breg5 EBP-12)
CHECK: .debug_loc contents:
CHECK-NEXT: [[F_LOC]]:
this is actually the wrong location due to PR14763, but that doesn't matter for
the purposes of testing dwarfdump
-CHECK-NEXT: (0x00000000, 0x00000023): DW_OP_reg1 ECX
-CHECK-NEXT: (0x00000023, 0x0000005d): DW_OP_breg5 EBP-16
+CHECK-NEXT: (0x00000000, 0x00000023) ".text": DW_OP_reg1 ECX
+CHECK-NEXT: (0x00000023, 0x0000005d) ".text": DW_OP_breg5 EBP-16
CHECK: [[G_LOC]]:
-CHECK-NEXT: (0x00000000, 0x00000020): DW_OP_reg0 EAX
-CHECK-NEXT: (0x00000020, 0x0000005d): DW_OP_breg5 EBP-12
+CHECK-NEXT: (0x00000000, 0x00000020) ".text": DW_OP_reg0 EAX
+CHECK-NEXT: (0x00000020, 0x0000005d) ".text": DW_OP_breg5 EBP-12
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug_loclists.s b/llvm/test/tools/llvm-dwarfdump/X86/debug_loclists.s
index 7e97fe902376..fa2fcb47b999 100644
--- a/llvm/test/tools/llvm-dwarfdump/X86/debug_loclists.s
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug_loclists.s
@@ -1,13 +1,44 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-pc-linux -o %t
-# RUN: llvm-dwarfdump %t | FileCheck %s
+# RUN: llvm-dwarfdump -debug-info -debug-loclists %t \
+# RUN: | FileCheck %s --check-prefix=REGULAR --check-prefix=BOTH
+# RUN: llvm-dwarfdump -debug-info -debug-loclists --verbose %t \
+# RUN: | FileCheck %s --check-prefix=VERBOSE --check-prefix=BOTH
-# CHECK: DW_AT_location (0x0000000c
-# CHECK-NEXT: [0x0000000000000000, 0x0000000000000001): DW_OP_reg0 RAX
-# CHECK-NEXT: [0x0000000000000001, 0x0000000000000002): DW_OP_reg1 RDX
-# CHECK-NEXT: [0x0000000000000002, 0x0000000000000003): DW_OP_reg2 RCX
-# CHECK-NEXT: [0x0000000000000003, 0x0000000000000004): DW_OP_reg3 RBX
-# CHECK-NEXT: DW_LLE_startx_length (0x000000000000dead, 0x0000000000000001): DW_OP_reg4 RSI)
+# BOTH: DW_AT_location {{.*}}(0x0000000c
+
+# REGULAR-NEXT: [0x0000000000000000, 0x0000000000000001): DW_OP_reg0 RAX
+# VERBOSE-NEXT: [0x0000000000000000, 0x0000000000000001) ".text": DW_OP_reg0 RAX
+
+# REGULAR-NEXT: [0x0000000000000001, 0x0000000000000002): DW_OP_reg1 RDX
+# VERBOSE-NEXT: [0x0000000000000001, 0x0000000000000002) ".text": DW_OP_reg1 RDX
+
+# REGULAR-NEXT: [0x0000000000000002, 0x0000000000000003): DW_OP_reg2 RCX
+# VERBOSE-NEXT: [0x0000000000000002, 0x0000000000000003) ".text": DW_OP_reg2 RCX
+
+# REGULAR-NEXT: [0x0000000000000003, 0x0000000000000004): DW_OP_reg3 RBX
+# VERBOSE-NEXT: [0x0000000000000003, 0x0000000000000004) ".text": DW_OP_reg3 RBX
+
+# BOTH-NEXT: DW_LLE_startx_length (0x000000000000dead, 0x0000000000000001): DW_OP_reg4 RSI)
+
+# BOTH: locations list header: length = 0x00000034, version = 0x0005, addr_size = 0x08, seg_size = 0x00, offset_entry_count = 0x00000000
+# BOTH-NEXT: 0x0000000c:
+# BOTH-NEXT: DW_LLE_startx_length (0x0000000000000000, 0x0000000000000001): DW_OP_reg0 RAX
+# BOTH-NEXT: DW_LLE_offset_pair (0x0000000000000001, 0x0000000000000002): DW_OP_reg1 RDX
+
+# REGULAR-NEXT: [0x0000000000000002, 0x0000000000000003): DW_OP_reg2 RCX
+# VERBOSE-NEXT: DW_LLE_start_length (0x0000000000000002, 0x0000000000000001) ".text"
+# VERBOSE-NEXT: => [0x0000000000000002, 0x0000000000000003) ".text": DW_OP_reg2 RCX
+
+# VERBOSE-NEXT: DW_LLE_base_address (0x0000000000000003) ".text"
+
+# REGULAR-NEXT: [0x0000000000000003, 0x0000000000000004): DW_OP_reg3 RBX
+# VERBOSE-NEXT: DW_LLE_offset_pair (0x0000000000000000, 0x0000000000000001)
+# VERBOSE-NEXT: => [0x0000000000000003, 0x0000000000000004) ".text": DW_OP_reg3 RBX
+
+# BOTH-NEXT: DW_LLE_startx_length (0x000000000000dead, 0x0000000000000001): DW_OP_reg4 RSI
+
+# VERBOSE-NEXT: DW_LLE_end_of_list ()
.text
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