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[DebugInfo] Support DWARF v5 source code embedding extension

Browse Source 
In DWARF v5 the Line Number Program Header is extensible, allowing values with
new content types. In this extension a content type is added,
DW_LNCT_LLVM_source, which contains the embedded source code of the file.

Add new optional attribute for !DIFile IR metadata called source which contains
source text. Use this to output the source to the DWARF line table of code
objects. Analogously extend METADATA_FILE in Bitcode and .file directive in ASM
to support optional source.

Teach llvm-dwarfdump and llvm-objdump about the new values. Update the output
format of llvm-dwarfdump to make room for the new attribute on file_names
entries, and support embedded sources for the -source option in llvm-objdump.

Differential Revision: https://reviews.llvm.org/D42765

llvm-svn: 325970
This commit is contained in:
Scott Linder 2018-02-23 23:01:06 +00:00
parent 636437d0bf
commit 03316a5291
51 changed files with 580 additions and 220 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
docs/AMDGPUUsage.rst
View File

@ -780,7 +780,7 @@ The following relocation types are supported:
DWARF
-----
Standard DWARF [DWARF]_ Version 2 sections can be generated. These contain
Standard DWARF [DWARF]_ Version 5 sections can be generated. These contain
information that maps the code object executable code and data to the source
language constructs. It can be used by tools such as debuggers and profilers.
@ -836,10 +836,60 @@ Register Mapping
Source Text
~~~~~~~~~~~
*This section is WIP.*
Source text for online-compiled programs (e.g. those compiled by the OpenCL
runtime) may be embedded into the DWARF v5 line table using the ``clang
-gembed-source`` option, described in table :ref:`amdgpu-debug-options`.
.. TODO
DWARF extension to include runtime generated source text.
For example:
``-gembed-source``
Enable the embedded source DWARF v5 extension.
``-gno-embed-source``
Disable the embedded source DWARF v5 extension.
.. table:: AMDGPU Debug Options
:name: amdgpu-debug-options
==================== ==================================================
Debug Flag Description
==================== ==================================================
-g[no-]embed-source Enable/disable embedding source text in DWARF
debug sections. Useful for environments where
source cannot be written to disk, such as
when performing online compilation.
==================== ==================================================
This option enables one extended content types in the DWARF v5 Line Number
Program Header, which is used to encode embedded source.
.. table:: AMDGPU DWARF Line Number Program Header Extended Content Types
:name: amdgpu-dwarf-extended-content-types
============================ ======================
Content Type Form
============================ ======================
``DW_LNCT_LLVM_source`` ``DW_FORM_line_strp``
============================ ======================
The source field will contain the UTF-8 encoded, null-terminated source text
with ``'\n'`` line endings. When the source field is present, consumers can use
the embedded source instead of attempting to discover the source on disk. When
the source field is absent, consumers can access the file to get the source
text.
The above content type appears in the ``file_name_entry_format`` field of the
line table prologue, and its corresponding value appear in the ``file_names``
field. The current encoding of the content type is documented in table
:ref:`amdgpu-dwarf-extended-content-types-encoding`
.. table:: AMDGPU DWARF Line Number Program Header Extended Content Types Encoding
:name: amdgpu-dwarf-extended-content-types-encoding
============================ ====================
Content Type Value
============================ ====================
``DW_LNCT_LLVM_source`` 0x2001
============================ ====================
.. _amdgpu-code-conventions:

3
include/llvm/BinaryFormat/Dwarf.def
View File

@ -747,6 +747,9 @@ HANDLE_DW_LNCT(0x02, directory_index)
HANDLE_DW_LNCT(0x03, timestamp)
HANDLE_DW_LNCT(0x04, size)
HANDLE_DW_LNCT(0x05, MD5)
// A vendor extension until http://dwarfstd.org/ShowIssue.php?issue=180201.1 is
// accepted and incorporated into the next DWARF standard.
HANDLE_DW_LNCT(0x2001, LLVM_source)
// DWARF v5 Macro information.
HANDLE_DW_MACRO(0x01, define)

1
include/llvm/DebugInfo/DIContext.h
View File

@ -31,6 +31,7 @@ namespace llvm {
struct DILineInfo {
std::string FileName;
std::string FunctionName;
Optional<StringRef> Source;
uint32_t Line = 0;
uint32_t Column = 0;
uint32_t StartLine = 0;

26
include/llvm/DebugInfo/DWARF/DWARFDebugLine.h
View File

@ -10,6 +10,7 @@
#ifndef LLVM_DEBUGINFO_DWARFDEBUGLINE_H
#define LLVM_DEBUGINFO_DWARFDEBUGLINE_H
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h"
@ -36,6 +37,25 @@ public:
uint64_t ModTime = 0;
uint64_t Length = 0;
MD5::MD5Result Checksum;
DWARFFormValue Source;
};
/// Tracks which optional content types are present in a DWARF file name
/// entry format.
struct ContentTypeTracker {
ContentTypeTracker() = default;
/// Whether filename entries provide a modification timestamp.
bool HasModTime = false;
/// Whether filename entries provide a file size.
bool HasLength = false;
/// For v5, whether filename entries provide an MD5 checksum.
bool HasMD5 = false;
/// For v5, whether filename entries provide source text.
bool HasSource = false;
/// Update tracked content types with \p ContentType.
void trackContentType(dwarf::LineNumberEntryFormat ContentType);
};
struct Prologue {
@ -68,8 +88,8 @@ public:
uint8_t LineRange;
/// The number assigned to the first special opcode.
uint8_t OpcodeBase;
/// For v5, whether filename entries provide an MD5 checksum.
bool HasMD5;
/// This tracks which optional file format content types are present.
ContentTypeTracker ContentTypes;
std::vector<uint8_t> StandardOpcodeLengths;
std::vector<DWARFFormValue> IncludeDirectories;
std::vector<FileNameEntry> FileNames;
@ -239,6 +259,8 @@ public:
private:
uint32_t findRowInSeq(const DWARFDebugLine::Sequence &Seq,
uint64_t Address) const;
Optional<StringRef> getSourceByIndex(uint64_t FileIndex,
DILineInfoSpecifier::FileLineInfoKind Kind) const;
};
const LineTable *getLineTable(uint32_t Offset) const;

9
include/llvm/IR/DIBuilder.h
View File

@ -18,7 +18,7 @@
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
@ -141,10 +141,13 @@ namespace llvm {
/// Create a file descriptor to hold debugging information for a file.
/// \param Filename File name.
/// \param Directory Directory.
/// \param Checksum Checksum kind (e.g. CSK_MD5, CSK_SHA1, etc.) and value.
/// \param Checksum Optional checksum kind (e.g. CSK_MD5, CSK_SHA1, etc.)
/// and value.
/// \param Source Optional source text.
DIFile *
createFile(StringRef Filename, StringRef Directory,
Optional<DIFile::ChecksumInfo<StringRef>> Checksum = None);
Optional<DIFile::ChecksumInfo<StringRef>> Checksum = None,
Optional<StringRef> Source = None);
/// Create debugging information entry for a macro.
/// \param Parent Macro parent (could be nullptr).

46
include/llvm/IR/DebugInfoMetadata.h
View File

@ -455,6 +455,7 @@ public:
inline StringRef getFilename() const;
inline StringRef getDirectory() const;
inline Optional<StringRef> getSource() const;
StringRef getName() const;
DIScopeRef getScope() const;
@ -532,42 +533,48 @@ public:
private:
Optional<ChecksumInfo<MDString *>> Checksum;
Optional<MDString *> Source;
DIFile(LLVMContext &C, StorageType Storage,
Optional<ChecksumInfo<MDString *>> CS,
Optional<ChecksumInfo<MDString *>> CS, Optional<MDString *> Src,
ArrayRef<Metadata *> Ops)
: DIScope(C, DIFileKind, Storage, dwarf::DW_TAG_file_type, Ops),
Checksum(CS) {}
Checksum(CS), Source(Src) {}
~DIFile() = default;
static DIFile *getImpl(LLVMContext &Context, StringRef Filename,
StringRef Directory,
Optional<ChecksumInfo<StringRef>> CS,
Optional<StringRef> Source,
StorageType Storage, bool ShouldCreate = true) {
Optional<ChecksumInfo<MDString *>> MDChecksum;
if (CS)
MDChecksum.emplace(CS->Kind, getCanonicalMDString(Context, CS->Value));
return getImpl(Context, getCanonicalMDString(Context, Filename),
getCanonicalMDString(Context, Directory), MDChecksum,
Source ? Optional<MDString *>(getCanonicalMDString(Context, *Source)) : None,
Storage, ShouldCreate);
}
static DIFile *getImpl(LLVMContext &Context, MDString *Filename,
MDString *Directory,
Optional<ChecksumInfo<MDString *>> CS,
StorageType Storage, bool ShouldCreate = true);
Optional<MDString *> Source, StorageType Storage,
bool ShouldCreate = true);
TempDIFile cloneImpl() const {
return getTemporary(getContext(), getFilename(), getDirectory(),
getChecksum());
getChecksum(), getSource());
}
public:
DEFINE_MDNODE_GET(DIFile, (StringRef Filename, StringRef Directory,
Optional<ChecksumInfo<StringRef>> CS = None),
(Filename, Directory, CS))
Optional<ChecksumInfo<StringRef>> CS = None,
Optional<StringRef> Source = None),
(Filename, Directory, CS, Source))
DEFINE_MDNODE_GET(DIFile, (MDString * Filename, MDString *Directory,
Optional<ChecksumInfo<MDString *>> CS = None),
(Filename, Directory, CS))
Optional<ChecksumInfo<MDString *>> CS = None,
Optional<MDString *> Source = None),
(Filename, Directory, CS, Source))
TempDIFile clone() const { return cloneImpl(); }
@ -579,10 +586,14 @@ public:
StringRefChecksum.emplace(Checksum->Kind, Checksum->Value->getString());
return StringRefChecksum;
}
Optional<StringRef> getSource() const {
return Source ? Optional<StringRef>((*Source)->getString()) : None;
}
MDString *getRawFilename() const { return getOperandAs<MDString>(0); }
MDString *getRawDirectory() const { return getOperandAs<MDString>(1); }
Optional<ChecksumInfo<MDString *>> getRawChecksum() const { return Checksum; }
Optional<MDString *> getRawSource() const { return Source; }
static StringRef getChecksumKindAsString(ChecksumKind CSKind);
static Optional<ChecksumKind> getChecksumKind(StringRef CSKindStr);
@ -604,6 +615,12 @@ StringRef DIScope::getDirectory() const {
return "";
}
Optional<StringRef> DIScope::getSource() const {
if (auto *F = getFile())
return F->getSource();
return None;
}
/// Base class for types.
///
/// TODO: Remove the hardcoded name and context, since many types don't use
@ -1408,6 +1425,7 @@ public:
DIFile *getFile() const { return getScope()->getFile(); }
StringRef getFilename() const { return getScope()->getFilename(); }
StringRef getDirectory() const { return getScope()->getDirectory(); }
Optional<StringRef> getSource() const { return getScope()->getSource(); }
/// Get the scope where this is inlined.
///
@ -2177,6 +2195,12 @@ public:
return "";
}
Optional<StringRef> getSource() const {
if (auto *F = getFile())
return F->getSource();
return None;
}
Metadata *getRawScope() const { return getOperand(0); }
MDString *getRawName() const { return getOperandAs<MDString>(1); }
Metadata *getRawFile() const { return getOperand(2); }
@ -2624,6 +2648,12 @@ public:
return "";
}
Optional<StringRef> getSource() const {
if (auto *F = getFile())
return F->getSource();
return None;
}
MDString *getRawName() const { return getOperandAs<MDString>(0); }
Metadata *getRawFile() const { return getOperand(1); }
MDString *getRawGetterName() const { return getOperandAs<MDString>(2); }

4
include/llvm/MC/MCContext.h
View File

@ -11,6 +11,7 @@
#define LLVM_MC_MCCONTEXT_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
@ -496,7 +497,8 @@ namespace llvm {
/// Creates an entry in the dwarf file and directory tables.
Expected<unsigned> getDwarfFile(StringRef Directory, StringRef FileName,
unsigned FileNumber,
MD5::MD5Result *Checksum, unsigned CUID);
MD5::MD5Result *Checksum,
Optional<StringRef> Source, unsigned CUID);
bool isValidDwarfFileNumber(unsigned FileNumber, unsigned CUID = 0);

19
include/llvm/MC/MCDwarf.h
View File

@ -16,6 +16,7 @@
#define LLVM_MC_MCDWARF_H
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
@ -48,7 +49,6 @@ class SourceMgr;
/// index 0 is not used and not a valid dwarf file number).
struct MCDwarfFile {
// \brief The base name of the file without its directory path.
// The StringRef references memory allocated in the MCContext.
std::string Name;
// \brief The index into the list of directory names for this file name.
@ -57,6 +57,10 @@ struct MCDwarfFile {
/// The MD5 checksum, if there is one. Non-owning pointer to data allocated
/// in MCContext.
MD5::MD5Result *Checksum = nullptr;
/// The source code of the file. Non-owning reference to data allocated in
/// MCContext.
Optional<StringRef> Source;
};
/// \brief Instances of this class represent the information from a
@ -211,11 +215,13 @@ struct MCDwarfLineTableHeader {
StringMap<unsigned> SourceIdMap;
StringRef CompilationDir;
bool HasMD5 = false;
bool HasSource = false;
MCDwarfLineTableHeader() = default;
Expected<unsigned> tryGetFile(StringRef &Directory, StringRef &FileName,
MD5::MD5Result *Checksum,
Optional<StringRef> &Source,
unsigned FileNumber = 0);
std::pair<MCSymbol *, MCSymbol *>
Emit(MCStreamer *MCOS, MCDwarfLineTableParams Params,
@ -240,8 +246,8 @@ public:
}
unsigned getFile(StringRef Directory, StringRef FileName,
MD5::MD5Result *Checksum) {
return cantFail(Header.tryGetFile(Directory, FileName, Checksum));
MD5::MD5Result *Checksum, Optional<StringRef> Source) {
return cantFail(Header.tryGetFile(Directory, FileName, Checksum, Source));
}
void Emit(MCStreamer &MCOS, MCDwarfLineTableParams Params) const;
@ -261,10 +267,13 @@ public:
Expected<unsigned> tryGetFile(StringRef &Directory, StringRef &FileName,
MD5::MD5Result *Checksum,
Optional<StringRef> Source,
unsigned FileNumber = 0);
unsigned getFile(StringRef &Directory, StringRef &FileName,
MD5::MD5Result *Checksum, unsigned FileNumber = 0) {
return cantFail(tryGetFile(Directory, FileName, Checksum, FileNumber));
MD5::MD5Result *Checksum, Optional<StringRef> &Source,
unsigned FileNumber = 0) {
return cantFail(tryGetFile(Directory, FileName, Checksum, Source,
FileNumber));
}
MCSymbol *getLabel() const {

16
include/llvm/MC/MCStreamer.h
View File

@ -16,6 +16,7 @@
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/MC/MCDirectives.h"
@ -756,17 +757,22 @@ public:
unsigned EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
StringRef Filename,
MD5::MD5Result *Checksum = nullptr,
Optional<StringRef> Source = None,
unsigned CUID = 0) {
return cantFail(
tryEmitDwarfFileDirective(FileNo, Directory, Filename, Checksum, CUID));
tryEmitDwarfFileDirective(FileNo, Directory, Filename, Checksum,
Source, CUID));
}
/// Associate a filename with a specified logical file number. Returns a
/// StringError for any problem, or the file number. This implements the
/// DWARF2 '.file 4 "foo.c"' assembler directive.
/// Associate a filename with a specified logical file number.
/// Also associate a directory, optional checksum, and optional source
/// text with the logical file. This implements the DWARF2
/// '.file 4 "dir/foo.c"' assembler directive, and the DWARF5
/// '.file 4 "dir/foo.c" md5 "..." source "..."' assembler directive.
virtual Expected<unsigned> tryEmitDwarfFileDirective(
unsigned FileNo, StringRef Directory, StringRef Filename,
MD5::MD5Result *Checksum = nullptr, unsigned CUID = 0);
MD5::MD5Result *Checksum = nullptr, Optional<StringRef> Source = None,
unsigned CUID = 0);
/// \brief This implements the DWARF2 '.loc fileno lineno ...' assembler
/// directive.

13
lib/AsmParser/LLParser.cpp
View File

@ -4243,9 +4243,10 @@ bool LLParser::ParseDISubroutineType(MDNode *&Result, bool IsDistinct) {
}
/// ParseDIFileType:
/// ::= !DIFileType(filename: "path/to/file", directory: "/path/to/dir"
/// ::= !DIFileType(filename: "path/to/file", directory: "/path/to/dir",
/// checksumkind: CSK_MD5,
/// checksum: "000102030405060708090a0b0c0d0e0f")
/// checksum: "000102030405060708090a0b0c0d0e0f",
/// source: "source file contents")
bool LLParser::ParseDIFile(MDNode *&Result, bool IsDistinct) {
// The default constructed value for checksumkind is required, but will never
// be used, as the parser checks if the field was actually Seen before using
@ -4254,7 +4255,8 @@ bool LLParser::ParseDIFile(MDNode *&Result, bool IsDistinct) {
REQUIRED(filename, MDStringField, ); \
REQUIRED(directory, MDStringField, ); \
OPTIONAL(checksumkind, ChecksumKindField, (DIFile::CSK_MD5)); \
OPTIONAL(checksum, MDStringField, );
OPTIONAL(checksum, MDStringField, ); \
OPTIONAL(source, MDStringField, );
PARSE_MD_FIELDS();
#undef VISIT_MD_FIELDS
@ -4264,8 +4266,11 @@ bool LLParser::ParseDIFile(MDNode *&Result, bool IsDistinct) {
else if (checksumkind.Seen || checksum.Seen)
return Lex.Error("'checksumkind' and 'checksum' must be provided together");
Optional<MDString *> OptSource;
if (source.Seen)
OptSource = source.Val;
Result = GET_OR_DISTINCT(DIFile, (Context, filename.Val, directory.Val,
OptChecksum));
OptChecksum, OptSource));
return false;
}

9
lib/Bitcode/Reader/MetadataLoader.cpp
View File

@ -1350,7 +1350,7 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
}
case bitc::METADATA_FILE: {
if (Record.size() != 3 && Record.size() != 5)
if (Record.size() != 3 && Record.size() != 5 && Record.size() != 6)
return error("Invalid record");
IsDistinct = Record[0];
@ -1360,14 +1360,15 @@ Error MetadataLoader::MetadataLoaderImpl::parseOneMetadata(
// and the old encoding for CSK_None in the ChecksumKind. The new
// representation reserves the value 0 in the ChecksumKind to continue to
// encode None in a backwards-compatible way.
if (Record.size() == 5 && Record[3] && Record[4])
if (Record.size() > 4 && Record[3] && Record[4])
Checksum.emplace(static_cast<DIFile::ChecksumKind>(Record[3]),
getMDString(Record[4]));
MetadataList.assignValue(
GET_OR_DISTINCT(
DIFile,
(Context, getMDString(Record[1]), getMDString(Record[2]),
Checksum)),
(Context, getMDString(Record[1]), getMDString(Record[2]), Checksum,
Record.size() > 5 ? Optional<MDString *>(getMDString(Record[5]))
: None)),
NextMetadataNo);
NextMetadataNo++;
break;

3
lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -1560,6 +1560,9 @@ void ModuleBitcodeWriter::writeDIFile(const DIFile *N,
Record.push_back(0);
Record.push_back(VE.getMetadataOrNullID(nullptr));
}
auto Source = N->getRawSource();
if (Source)
Record.push_back(VE.getMetadataOrNullID(*Source));
Stream.EmitRecord(bitc::METADATA_FILE, Record, Abbrev);
Record.clear();

5
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -102,9 +102,10 @@ unsigned DwarfCompileUnit::getOrCreateSourceID(const DIFile *File) {
// extend .file to support this.
unsigned CUID = Asm->OutStreamer->hasRawTextSupport() ? 0 : getUniqueID();
if (!File)
return Asm->OutStreamer->EmitDwarfFileDirective(0, "", "", nullptr, CUID);
return Asm->OutStreamer->EmitDwarfFileDirective(0, "", "", nullptr, None, CUID);
return Asm->OutStreamer->EmitDwarfFileDirective(
0, File->getDirectory(), File->getFilename(), getMD5AsBytes(File), CUID);
0, File->getDirectory(), File->getFilename(), getMD5AsBytes(File),
File->getSource(), CUID);
}
DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(

6
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -1384,7 +1384,7 @@ void DwarfDebug::endFunctionImpl(const MachineFunction *MF) {
void DwarfDebug::recordSourceLine(unsigned Line, unsigned Col, const MDNode *S,
unsigned Flags) {
StringRef Fn;
unsigned Src = 1;
unsigned FileNo = 1;
unsigned Discriminator = 0;
if (auto *Scope = cast_or_null<DIScope>(S)) {
Fn = Scope->getFilename();
@ -1393,10 +1393,10 @@ void DwarfDebug::recordSourceLine(unsigned Line, unsigned Col, const MDNode *S,
Discriminator = LBF->getDiscriminator();
unsigned CUID = Asm->OutStreamer->getContext().getDwarfCompileUnitID();
Src = static_cast<DwarfCompileUnit &>(*InfoHolder.getUnits()[CUID])
FileNo = static_cast<DwarfCompileUnit &>(*InfoHolder.getUnits()[CUID])
.getOrCreateSourceID(Scope->getFile());
}
Asm->OutStreamer->EmitDwarfLocDirective(Src, Line, Col, Flags, 0,
Asm->OutStreamer->EmitDwarfLocDirective(FileNo, Line, Col, Flags, 0,
Discriminator, Fn);
}

4
lib/CodeGen/AsmPrinter/DwarfUnit.cpp
View File

@ -302,7 +302,9 @@ MD5::MD5Result *DwarfUnit::getMD5AsBytes(const DIFile *File) {
unsigned DwarfTypeUnit::getOrCreateSourceID(const DIFile *File) {
return SplitLineTable
? SplitLineTable->getFile(File->getDirectory(),
File->getFilename(), getMD5AsBytes(File))
File->getFilename(),
getMD5AsBytes(File),
File->getSource())
: getCU().getOrCreateSourceID(File);
}

4
lib/DebugInfo/DWARF/DWARFContext.cpp
View File

@ -466,7 +466,9 @@ void DWARFContext::dump(
uint32_t offset = 0;
uint32_t strOffset = 0;
while (const char *s = strData.getCStr(&offset)) {
OS << format("0x%8.8x: \"%s\"\n", strOffset, s);
OS << format("0x%8.8x: \"", strOffset);
OS.write_escaped(s);
OS << "\"\n";
strOffset = offset;
}
}

98
lib/DebugInfo/DWARF/DWARFDebugLine.cpp
View File

@ -8,6 +8,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/DWARF/DWARFDebugLine.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
@ -40,6 +41,28 @@ using ContentDescriptors = SmallVector<ContentDescriptor, 4>;
} // end anonmyous namespace
void DWARFDebugLine::ContentTypeTracker::trackContentType(
dwarf::LineNumberEntryFormat ContentType) {
switch (ContentType) {
case dwarf::DW_LNCT_timestamp:
HasModTime = true;
break;
case dwarf::DW_LNCT_size:
HasLength = true;
break;
case dwarf::DW_LNCT_MD5:
HasMD5 = true;
break;
case dwarf::DW_LNCT_LLVM_source:
HasSource = true;
break;
default:
// We only care about values we consider optional, and new values may be
// added in the vendor extension range, so we do not match exhaustively.
break;
}
}
DWARFDebugLine::Prologue::Prologue() { clear(); }
void DWARFDebugLine::Prologue::clear() {
@ -48,7 +71,7 @@ void DWARFDebugLine::Prologue::clear() {
MinInstLength = MaxOpsPerInst = DefaultIsStmt = LineBase = LineRange = 0;
OpcodeBase = 0;
FormParams = DWARFFormParams({0, 0, DWARF32});
HasMD5 = false;
ContentTypes = ContentTypeTracker();
StandardOpcodeLengths.clear();
IncludeDirectories.clear();
FileNames.clear();
@ -85,28 +108,26 @@ void DWARFDebugLine::Prologue::dump(raw_ostream &OS,
}
if (!FileNames.empty()) {
if (HasMD5)
OS << " Dir MD5 Checksum File Name\n"
<< " ---- -------------------------------- -----------"
"---------------\n";
else
OS << " Dir Mod Time File Len File Name\n"
<< " ---- ---------- ---------- -----------"
"----------------\n";
// DWARF v5 starts file indexes at 0.
uint32_t FileBase = getVersion() >= 5 ? 0 : 1;
for (uint32_t I = 0; I != FileNames.size(); ++I) {
const FileNameEntry &FileEntry = FileNames[I];
OS << format("file_names[%3u] %4" PRIu64 " ", I + FileBase,
FileEntry.DirIdx);
if (HasMD5)
OS << FileEntry.Checksum.digest();
else
OS << format("0x%8.8" PRIx64 " 0x%8.8" PRIx64, FileEntry.ModTime,
FileEntry.Length);
OS << ' ';
OS << format("file_names[%3u]:\n", I + FileBase);
OS << " name: ";
FileEntry.Name.dump(OS, DumpOptions);
OS << '\n';
OS << '\n'
<< format(" dir_index: %" PRIu64 "\n", FileEntry.DirIdx);
if (ContentTypes.HasMD5)
OS << " md5_checksum: " << FileEntry.Checksum.digest() << '\n';
if (ContentTypes.HasModTime)
OS << format(" mod_time: 0x%8.8" PRIx64 "\n", FileEntry.ModTime);
if (ContentTypes.HasLength)
OS << format(" length: 0x%8.8" PRIx64 "\n", FileEntry.Length);
if (ContentTypes.HasSource) {
OS << " source: ";
FileEntry.Source.dump(OS, DumpOptions);
OS << '\n';
}
}
}
}
@ -115,6 +136,7 @@ void DWARFDebugLine::Prologue::dump(raw_ostream &OS,
static void
parseV2DirFileTables(const DWARFDataExtractor &DebugLineData,
uint32_t *OffsetPtr, uint64_t EndPrologueOffset,
DWARFDebugLine::ContentTypeTracker &ContentTypes,
std::vector<DWARFFormValue> &IncludeDirectories,
std::vector<DWARFDebugLine::FileNameEntry> &FileNames) {
while (*OffsetPtr < EndPrologueOffset) {
@ -138,14 +160,18 @@ parseV2DirFileTables(const DWARFDataExtractor &DebugLineData,
FileEntry.Length = DebugLineData.getULEB128(OffsetPtr);
FileNames.push_back(FileEntry);
}
ContentTypes.HasModTime = true;
ContentTypes.HasLength = true;
}
// Parse v5 directory/file entry content descriptions.
// Returns the descriptors, or an empty vector if we did not find a path or
// ran off the end of the prologue.
static ContentDescriptors
parseV5EntryFormat(const DWARFDataExtractor &DebugLineData, uint32_t *OffsetPtr,
uint64_t EndPrologueOffset, bool *HasMD5) {
parseV5EntryFormat(const DWARFDataExtractor &DebugLineData, uint32_t
*OffsetPtr, uint64_t EndPrologueOffset, DWARFDebugLine::ContentTypeTracker
*ContentTypes) {
ContentDescriptors Descriptors;
int FormatCount = DebugLineData.getU8(OffsetPtr);
bool HasPath = false;
@ -158,8 +184,8 @@ parseV5EntryFormat(const DWARFDataExtractor &DebugLineData, uint32_t *OffsetPtr,
Descriptor.Form = dwarf::Form(DebugLineData.getULEB128(OffsetPtr));
if (Descriptor.Type == dwarf::DW_LNCT_path)
HasPath = true;
else if (Descriptor.Type == dwarf::DW_LNCT_MD5 && HasMD5)
*HasMD5 = true;
if (ContentTypes)
ContentTypes->trackContentType(Descriptor.Type);
Descriptors.push_back(Descriptor);
}
return HasPath ? Descriptors : ContentDescriptors();
@ -168,8 +194,9 @@ parseV5EntryFormat(const DWARFDataExtractor &DebugLineData, uint32_t *OffsetPtr,
static bool
parseV5DirFileTables(const DWARFDataExtractor &DebugLineData,
uint32_t *OffsetPtr, uint64_t EndPrologueOffset,
const DWARFFormParams &FormParams, const DWARFContext &Ctx,
const DWARFUnit *U, bool &HasMD5,
const DWARFFormParams &FormParams, const DWARFContext
&Ctx, const DWARFUnit *U,
DWARFDebugLine::ContentTypeTracker &ContentTypes,
std::vector<DWARFFormValue> &IncludeDirectories,
std::vector<DWARFDebugLine::FileNameEntry> &FileNames) {
// Get the directory entry description.
@ -200,7 +227,8 @@ parseV5DirFileTables(const DWARFDataExtractor &DebugLineData,
// Get the file entry description.
ContentDescriptors FileDescriptors =
parseV5EntryFormat(DebugLineData, OffsetPtr, EndPrologueOffset, &HasMD5);
parseV5EntryFormat(DebugLineData, OffsetPtr, EndPrologueOffset,
&ContentTypes);
if (FileDescriptors.empty())
return false;
@ -218,6 +246,9 @@ parseV5DirFileTables(const DWARFDataExtractor &DebugLineData,
case DW_LNCT_path:
FileEntry.Name = Value;
break;
case DW_LNCT_LLVM_source:
FileEntry.Source = Value;
break;
case DW_LNCT_directory_index:
FileEntry.DirIdx = Value.getAsUnsignedConstant().getValue();
break;
@ -285,8 +316,8 @@ bool DWARFDebugLine::Prologue::parse(const DWARFDataExtractor &DebugLineData,
if (getVersion() >= 5) {
if (!parseV5DirFileTables(DebugLineData, OffsetPtr, EndPrologueOffset,
FormParams, Ctx, U, HasMD5, IncludeDirectories,
FileNames)) {
FormParams, Ctx, U, ContentTypes,
IncludeDirectories, FileNames)) {
fprintf(stderr,
"warning: parsing line table prologue at 0x%8.8" PRIx64
" found an invalid directory or file table description at"
@ -295,7 +326,7 @@ bool DWARFDebugLine::Prologue::parse(const DWARFDataExtractor &DebugLineData,
}
} else
parseV2DirFileTables(DebugLineData, OffsetPtr, EndPrologueOffset,
IncludeDirectories, FileNames);
ContentTypes, IncludeDirectories, FileNames);
if (*OffsetPtr != EndPrologueOffset) {
fprintf(stderr,
@ -912,6 +943,16 @@ bool DWARFDebugLine::LineTable::hasFileAtIndex(uint64_t FileIndex) const {
return FileIndex != 0 && FileIndex <= Prologue.FileNames.size();
}
Optional<StringRef> DWARFDebugLine::LineTable::getSourceByIndex(uint64_t FileIndex,
FileLineInfoKind Kind) const {
if (Kind == FileLineInfoKind::None || !hasFileAtIndex(FileIndex))
return None;
const FileNameEntry &Entry = Prologue.FileNames[FileIndex - 1];
if (Optional<const char *> source = Entry.Source.getAsCString())
return StringRef(*source);
return None;
}
bool DWARFDebugLine::LineTable::getFileNameByIndex(uint64_t FileIndex,
const char *CompDir,
FileLineInfoKind Kind,
@ -963,5 +1004,6 @@ bool DWARFDebugLine::LineTable::getFileLineInfoForAddress(
Result.Line = Row.Line;
Result.Column = Row.Column;
Result.Discriminator = Row.Discriminator;
Result.Source = getSourceByIndex(Row.File, Kind);
return true;
}

2
lib/IR/AsmWriter.cpp
View File

@ -1723,6 +1723,8 @@ static void writeDIFile(raw_ostream &Out, const DIFile *N, TypePrinting *,
// Print all values for checksum together, or not at all.
if (N->getChecksum())
Printer.printChecksum(*N->getChecksum());
Printer.printString("source", N->getSource().getValueOr(StringRef()),
/* ShouldSkipEmpty */ true);
Out << ")";
}

6
lib/IR/DIBuilder.cpp
View File

@ -14,6 +14,7 @@
#include "llvm/IR/DIBuilder.h"
#include "llvm/IR/IRBuilder.h"
#include "LLVMContextImpl.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/IR/Constants.h"
@ -204,8 +205,9 @@ DIImportedEntity *DIBuilder::createImportedDeclaration(DIScope *Context,
}
DIFile *DIBuilder::createFile(StringRef Filename, StringRef Directory,
Optional<DIFile::ChecksumInfo<StringRef>> CS) {
return DIFile::get(VMContext, Filename, Directory, CS);
Optional<DIFile::ChecksumInfo<StringRef>> CS,
Optional<StringRef> Source) {
return DIFile::get(VMContext, Filename, Directory, CS, Source);
}
DIMacro *DIBuilder::createMacro(DIMacroFile *Parent, unsigned LineNumber,

11
lib/IR/DebugInfoMetadata.cpp
View File

@ -417,13 +417,16 @@ Optional<DIFile::ChecksumKind> DIFile::getChecksumKind(StringRef CSKindStr) {
DIFile *DIFile::getImpl(LLVMContext &Context, MDString *Filename,
MDString *Directory,
Optional<DIFile::ChecksumInfo<MDString *>> CS,
StorageType Storage, bool ShouldCreate) {
Optional<MDString *> Source, StorageType Storage,
bool ShouldCreate) {
assert(isCanonical(Filename) && "Expected canonical MDString");
assert(isCanonical(Directory) && "Expected canonical MDString");
assert((!CS || isCanonical(CS->Value)) && "Expected canonical MDString");
DEFINE_GETIMPL_LOOKUP(DIFile, (Filename, Directory, CS));
Metadata *Ops[] = {Filename, Directory, CS ? CS->Value : nullptr};
DEFINE_GETIMPL_STORE(DIFile, (CS), Ops);
assert((!Source || isCanonical(*Source)) && "Expected canonical MDString");
DEFINE_GETIMPL_LOOKUP(DIFile, (Filename, Directory, CS, Source));
Metadata *Ops[] = {Filename, Directory, CS ? CS->Value : nullptr,
Source.getValueOr(nullptr)};
DEFINE_GETIMPL_STORE(DIFile, (CS, Source), Ops);
}
DICompileUnit *DICompileUnit::getImpl(

18
lib/IR/LLVMContextImpl.h
View File

@ -575,24 +575,28 @@ template <> struct MDNodeKeyImpl<DIFile> {
MDString *Filename;
MDString *Directory;
Optional<DIFile::ChecksumInfo<MDString *>> Checksum;
Optional<MDString *> Source;
MDNodeKeyImpl(MDString *Filename, MDString *Directory,
Optional<DIFile::ChecksumInfo<MDString *>> Checksum)
: Filename(Filename), Directory(Directory), Checksum(Checksum) {}
Optional<DIFile::ChecksumInfo<MDString *>> Checksum,
Optional<MDString *> Source)
: Filename(Filename), Directory(Directory), Checksum(Checksum),
Source(Source) {}
MDNodeKeyImpl(const DIFile *N)
: Filename(N->getRawFilename()), Directory(N->getRawDirectory()),
Checksum(N->getRawChecksum()) {}
Checksum(N->getRawChecksum()), Source(N->getRawSource()) {}
bool isKeyOf(const DIFile *RHS) const {
return Filename == RHS->getRawFilename() &&
Directory == RHS->getRawDirectory() &&
Checksum == RHS->getRawChecksum();
Checksum == RHS->getRawChecksum() &&
Source == RHS->getRawSource();
}
unsigned getHashValue() const {
if (Checksum)
return hash_combine(Filename, Directory, Checksum->Kind, Checksum->Value);
return hash_combine(Filename, Directory);
return hash_combine(
Filename, Directory, Checksum ? Checksum->Kind : 0,
Checksum ? Checksum->Value : nullptr, Source.getValueOr(nullptr));
}
};

10
lib/MC/MCAsmStreamer.cpp
View File

@ -7,6 +7,7 @@
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
@ -215,6 +216,7 @@ public:
StringRef Directory,
StringRef Filename,
MD5::MD5Result *Checksum = 0,
Optional<StringRef> Source = None,
unsigned CUID = 0) override;
void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
unsigned Column, unsigned Flags,
@ -1076,13 +1078,13 @@ void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
Expected<unsigned> MCAsmStreamer::tryEmitDwarfFileDirective(
unsigned FileNo, StringRef Directory, StringRef Filename,
MD5::MD5Result *Checksum, unsigned CUID) {
MD5::MD5Result *Checksum, Optional<StringRef> Source, unsigned CUID) {
assert(CUID == 0);
MCDwarfLineTable &Table = getContext().getMCDwarfLineTable(CUID);
unsigned NumFiles = Table.getMCDwarfFiles().size();
Expected<unsigned> FileNoOrErr =
Table.tryGetFile(Directory, Filename, Checksum, FileNo);
Table.tryGetFile(Directory, Filename, Checksum, Source, FileNo);
if (!FileNoOrErr)
return FileNoOrErr.takeError();
FileNo = FileNoOrErr.get();
@ -1114,6 +1116,10 @@ Expected<unsigned> MCAsmStreamer::tryEmitDwarfFileDirective(
OS1 << " md5 ";
PrintQuotedString(Checksum->digest(), OS1);
}
if (Source) {
OS1 << " source ";
PrintQuotedString(*Source, OS1);
}
if (MCTargetStreamer *TS = getTargetStreamer()) {
TS->emitDwarfFileDirective(OS1.str());
} else {

6
lib/MC/MCContext.cpp
View File

@ -8,6 +8,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCContext.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringMap.h"
@ -532,7 +533,7 @@ MCSubtargetInfo &MCContext::getSubtargetCopy(const MCSubtargetInfo &STI) {
// Dwarf Management
//===----------------------------------------------------------------------===//
/// getDwarfFile - takes a file name an number to place in the dwarf file and
/// getDwarfFile - takes a file name and number to place in the dwarf file and
/// directory tables. If the file number has already been allocated it is an
/// error and zero is returned and the client reports the error, else the
/// allocated file number is returned. The file numbers may be in any order.
@ -540,9 +541,10 @@ Expected<unsigned> MCContext::getDwarfFile(StringRef Directory,
StringRef FileName,
unsigned FileNumber,
MD5::MD5Result *Checksum,
Optional<StringRef> Source,
unsigned CUID) {
MCDwarfLineTable &Table = MCDwarfLineTablesCUMap[CUID];
return Table.tryGetFile(Directory, FileName, Checksum, FileNumber);
return Table.tryGetFile(Directory, FileName, Checksum, Source, FileNumber);
}
/// isValidDwarfFileNumber - takes a dwarf file number and returns true if it

51
lib/MC/MCDwarf.cpp
View File

@ -11,7 +11,7 @@
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
@ -373,8 +373,13 @@ void MCDwarfLineTableHeader::emitV5FileDirTables(
// The file format, which is the inline null-terminated filename and a
// directory index. We don't track file size/timestamp so don't emit them
// in the v5 table. Emit MD5 checksums if we have them.
MCOS->EmitIntValue(HasMD5 ? 3 : 2, 1);
// in the v5 table. Emit MD5 checksums and source if we have them.
uint64_t Entries = 2;
if (HasMD5)
Entries += 1;
if (HasSource)
Entries += 1;
MCOS->EmitIntValue(Entries, 1);
MCOS->EmitULEB128IntValue(dwarf::DW_LNCT_path);
MCOS->EmitULEB128IntValue(LineStr ? dwarf::DW_FORM_line_strp
: dwarf::DW_FORM_string);
@ -384,6 +389,11 @@ void MCDwarfLineTableHeader::emitV5FileDirTables(
MCOS->EmitULEB128IntValue(dwarf::DW_LNCT_MD5);
MCOS->EmitULEB128IntValue(dwarf::DW_FORM_data16);
}
if (HasSource) {
MCOS->EmitULEB128IntValue(dwarf::DW_LNCT_LLVM_source);
MCOS->EmitULEB128IntValue(LineStr ? dwarf::DW_FORM_line_strp
: dwarf::DW_FORM_string);
}
// Then the list of file names. These start at 1.
MCOS->EmitULEB128IntValue(MCDwarfFiles.size() - 1);
for (unsigned i = 1; i < MCDwarfFiles.size(); ++i) {
@ -401,6 +411,15 @@ void MCDwarfLineTableHeader::emitV5FileDirTables(
StringRef(reinterpret_cast<const char *>(Cksum->Bytes.data()),
Cksum->Bytes.size()));
}
if (HasSource) {
if (LineStr)
LineStr->emitRef(MCOS, MCDwarfFiles[i].Source.getValueOr(StringRef()));
else {
MCOS->EmitBytes(
MCDwarfFiles[i].Source.getValueOr(StringRef())); // Source and...
MCOS->EmitBytes(StringRef("\0", 1)); // its null terminator.
}
}
}
}
@ -500,14 +519,17 @@ void MCDwarfLineTable::EmitCU(MCObjectStreamer *MCOS,
Expected<unsigned> MCDwarfLineTable::tryGetFile(StringRef &Directory,
StringRef &FileName,
MD5::MD5Result *Checksum,
Optional<StringRef> Source,
unsigned FileNumber) {
return Header.tryGetFile(Directory, FileName, Checksum, FileNumber);
return Header.tryGetFile(Directory, FileName, Checksum, Source, FileNumber);
}
Expected<unsigned> MCDwarfLineTableHeader::tryGetFile(StringRef &Directory,
StringRef &FileName,
MD5::MD5Result *Checksum,
unsigned FileNumber) {
Expected<unsigned>
MCDwarfLineTableHeader::tryGetFile(StringRef &Directory,
StringRef &FileName,
MD5::MD5Result *Checksum,
Optional<StringRef> &Source,
unsigned FileNumber) {
if (Directory == CompilationDir)
Directory = "";
if (FileName.empty()) {
@ -515,9 +537,11 @@ Expected<unsigned> MCDwarfLineTableHeader::tryGetFile(StringRef &Directory,
Directory = "";
}
assert(!FileName.empty());
// If any files have an MD5 checksum, they all must.
if (MCDwarfFiles.empty())
// If any files have an MD5 checksum or embedded source, they all must.
if (MCDwarfFiles.empty()) {
HasMD5 = (Checksum != nullptr);
HasSource = (Source != None);
}
if (FileNumber == 0) {
// File numbers start with 1 and/or after any file numbers
// allocated by inline-assembler .file directives.
@ -545,6 +569,10 @@ Expected<unsigned> MCDwarfLineTableHeader::tryGetFile(StringRef &Directory,
if (HasMD5 != (Checksum != nullptr))
return make_error<StringError>("inconsistent use of MD5 checksums",
inconvertibleErrorCode());
// If any files have embedded source, they all must.
if (HasSource != (Source != None))
return make_error<StringError>("inconsistent use of embedded source",
inconvertibleErrorCode());
if (Directory.empty()) {
// Separate the directory part from the basename of the FileName.
@ -582,6 +610,9 @@ Expected<unsigned> MCDwarfLineTableHeader::tryGetFile(StringRef &Directory,
File.Checksum = Checksum;
if (Checksum)
HasMD5 = true;
File.Source = Source;
if (Source)
HasSource = true;
// return the allocated FileNumber.
return FileNumber;

48
lib/MC/MCParser/AsmParser.cpp
View File

@ -3250,7 +3250,7 @@ bool AsmParser::parseDirectiveAlign(bool IsPow2, unsigned ValueSize) {
/// parseDirectiveFile
/// ::= .file filename
/// ::= .file number [directory] filename [md5 checksum]
/// ::= .file number [directory] filename [md5 checksum] [source source-text]
bool AsmParser::parseDirectiveFile(SMLoc DirectiveLoc) {
// FIXME: I'm not sure what this is.
int64_t FileNumber = -1;
@ -3286,23 +3286,36 @@ bool AsmParser::parseDirectiveFile(SMLoc DirectiveLoc) {
}
std::string Checksum;
if (!parseOptionalToken(AsmToken::EndOfStatement)) {
Optional<StringRef> Source;
bool HasSource = false;
std::string SourceString;
while (!parseOptionalToken(AsmToken::EndOfStatement)) {
StringRef Keyword;
if (check(getTok().isNot(AsmToken::Identifier),
"unexpected token in '.file' directive") ||
parseIdentifier(Keyword) ||
check(Keyword != "md5", "unexpected token in '.file' directive"))
return true;
if (getLexer().is(AsmToken::String) &&
check(FileNumber == -1, "MD5 checksum specified, but no file number"))
return true;
if (check(getTok().isNot(AsmToken::String),
"unexpected token in '.file' directive") ||
parseEscapedString(Checksum) ||
check(Checksum.size() != 32, "invalid MD5 checksum specified") ||
parseToken(AsmToken::EndOfStatement,
"unexpected token in '.file' directive"))
parseIdentifier(Keyword))
return true;
if (Keyword == "md5") {
if (check(FileNumber == -1,
"MD5 checksum specified, but no file number") ||
check(getTok().isNot(AsmToken::String),
"unexpected token in '.file' directive") ||
parseEscapedString(Checksum) ||
check(Checksum.size() != 32, "invalid MD5 checksum specified"))
return true;
} else if (Keyword == "source") {
HasSource = true;
if (check(FileNumber == -1,
"source specified, but no file number") ||
check(getTok().isNot(AsmToken::String),
"unexpected token in '.file' directive") ||
parseEscapedString(SourceString))
return true;
} else {
return TokError("unexpected token in '.file' directive");
}
}
if (FileNumber == -1)
@ -3316,13 +3329,18 @@ bool AsmParser::parseDirectiveFile(SMLoc DirectiveLoc) {
CKMem = (MD5::MD5Result *)Ctx.allocate(sizeof(MD5::MD5Result), 1);
memcpy(&CKMem->Bytes, Checksum.data(), 16);
}
if (HasSource) {
char *SourceBuf = static_cast<char *>(Ctx.allocate(SourceString.size()));
memcpy(SourceBuf, SourceString.data(), SourceString.size());
Source = StringRef(SourceBuf, SourceString.size());
}
// If there is -g option as well as debug info from directive file,
// we turn off -g option, directly use the existing debug info instead.
if (getContext().getGenDwarfForAssembly())
getContext().setGenDwarfForAssembly(false);
else {
Expected<unsigned> FileNumOrErr = getStreamer().tryEmitDwarfFileDirective(
FileNumber, Directory, Filename, CKMem);
FileNumber, Directory, Filename, CKMem, Source);
if (!FileNumOrErr)
return Error(DirectiveLoc, toString(FileNumOrErr.takeError()));
FileNumber = FileNumOrErr.get();

8
lib/MC/MCStreamer.cpp
View File

@ -8,6 +8,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCStreamer.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
@ -191,8 +192,11 @@ void MCStreamer::EmitZeros(uint64_t NumBytes) {
Expected<unsigned>
MCStreamer::tryEmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
StringRef Filename,
MD5::MD5Result *Checksum, unsigned CUID) {
return getContext().getDwarfFile(Directory, Filename, FileNo, Checksum, CUID);
MD5::MD5Result *Checksum,
Optional<StringRef> Source,
unsigned CUID) {
return getContext().getDwarfFile(Directory, Filename, FileNo, Checksum,
Source, CUID);
}
void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,

9
test/Assembler/debug-info.ll
View File

@ -1,8 +1,8 @@
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
; RUN: verify-uselistorder %s
; CHECK: !named = !{!0, !0, !1, !2, !3, !4, !5, !6, !7, !8, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !27, !28, !29, !30, !31, !32, !33, !34, !35}
!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37, !38}
; CHECK: !named = !{!0, !0, !1, !2, !3, !4, !5, !6, !7, !8, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37}
!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10, !11, !12, !13, !14, !15, !16, !17, !18, !19, !20, !21, !22, !23, !24, !25, !26, !27, !28, !29, !30, !31, !32, !33, !34, !35, !36, !37, !38, !39, !40}
; CHECK: !0 = !DISubrange(count: 3)
; CHECK-NEXT: !1 = !DISubrange(count: 3, lowerBound: 4)
@ -89,3 +89,8 @@
!36 = !DICompositeType(tag: DW_TAG_variant_part, name: "A", scope: !16, size: 64, discriminator: !37)
!37 = !DIDerivedType(tag: DW_TAG_member, scope: !36, baseType: !38, size: 64, align: 64, flags: DIFlagArtificial)
!38 = !DIBasicType(name: "u64", size: 64, encoding: DW_ATE_unsigned)
; CHECK-NEXT: !36 = !DIFile(filename: "file", directory: "dir", source: "int source() { }\0A")
; CHECK-NEXT: !37 = !DIFile(filename: "file", directory: "dir", checksumkind: CSK_MD5, checksum: "3a420e2646916a475e68de8d48f779f5", source: "int source() { }\0A")
!39 = !DIFile(filename: "file", directory: "dir", source: "int source() { }\0A")
!40 = !DIFile(filename: "file", directory: "dir", checksumkind: CSK_MD5, checksum: "3a420e2646916a475e68de8d48f779f5", source: "int source() { }\0A")

4
test/CodeGen/BPF/dwarfdump.ll
View File

@ -59,6 +59,8 @@ attributes #1 = { nounwind readnone }
!26 = !DILocation(line: 7, column: 17, scope: !2)
!27 = !DILocation(line: 9, column: 9, scope: !2)
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 "testprog.c"
; CHECK: file_names[ 1]:
; CHECK-NEXT: name: "testprog.c"
; CHECK-NEXT: dir_index: 0
; CHECK: 0x0000000000000000 2
; CHECK: 0x0000000000000028 7

20
test/CodeGen/Generic/dwarf-md5.ll
View File

@ -16,13 +16,21 @@
; ASM: .file 1 ".{{/|\\\\}}t1.h" md5 "11111111111111111111111111111111"
; ASM: .file 2 ".{{/|\\\\}}t2.h" md5 "22222222222222222222222222222222"
; OBJ-4: Dir Mod Time File Len File Name
; OBJ-4: file_names[ 1] 1 0x00000000 0x00000000 "t1.h"
; OBJ-4: file_names[ 2] 1 0x00000000 0x00000000 "t2.h"
; OBJ-4: file_names[ 1]:
; OBJ-4-NEXT: name: "t1.h"
; OBJ-4-NEXT: dir_index: 1
; OBJ-4: file_names[ 2]:
; OBJ-4-NEXT: name: "t2.h"
; OBJ-4-NEXT: dir_index: 1
; OBJ-5: Dir MD5 Checksum File Name
; OBJ-5: file_names[ 0] 1 11111111111111111111111111111111 "t1.h"
; OBJ-5: file_names[ 1] 1 22222222222222222222222222222222 "t2.h"
; OBJ-5: file_names[ 0]:
; OBJ-5-NEXT: name: "t1.h"
; OBJ-5-NEXT: dir_index: 1
; OBJ-5-NEXT: md5_checksum: 11111111111111111111111111111111
; OBJ-5: file_names[ 1]:
; OBJ-5-NEXT: name: "t2.h"
; OBJ-5-NEXT: dir_index: 1
; OBJ-5-NEXT: md5_checksum: 22222222222222222222222222222222
; ModuleID = 't.c'
source_filename = "t.c"

6
test/CodeGen/X86/dwarf-comp-dir.ll
View File

@ -15,7 +15,7 @@ target triple = "x86_64-unknown-linux-gnu"
!7 = !{!6}
; The important part of the following check is that dir = #0.
; Dir Mod Time File Len File Name
; ---- ---------- ---------- ---------------------------
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 "empty.c"
; CHECK: file_names[ 1]:
; CHECK-NEXT: name: "empty.c"
; CHECK-NEXT: dir_index: 0
!5 = !{i32 1, !"Debug Info Version", i32 3}

4
test/DebugInfo/AMDGPU/dwarfdump-relocs.ll
View File

@ -13,7 +13,9 @@
; }
; CHECK-NOT: failed to compute relocation
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 "dwarfdump-relocs.cl"
; CHECK: file_names[ 1]:
; CHECK-NEXT: name: "dwarfdump-relocs.cl"
; CHECK-NEXT: dir_index: 0
declare void @llvm.dbg.declare(metadata, metadata, metadata)

8
test/DebugInfo/Generic/lto-comp-dir.ll
View File

@ -11,13 +11,17 @@
; CHECK-NEXT: debug_line[{{.*}}]
; CHECK-NEXT: Line table prologue:
; CHECK-NOT: include_directories
; CHECK: file_names[ 1] 0 {{.*}} "a.cpp"
; CHECK: file_names[ 1]
; CHECK: name: "a.cpp"
; CHECK-NEXT: dir_index: 0
; CHECK-NOT: file_names
; CHECK: debug_line[{{.*}}]
; CHECK-NEXT: Line table prologue:
; CHECK-NOT: include_directories
; CHECK: file_names[ 1] 0 {{.*}} "b.cpp"
; CHECK: file_names[ 1]
; CHECK: name: "b.cpp"
; CHECK-NEXT: dir_index: 0
; CHECK-NOT: file_names
; However, if a single line table is emitted and shared between CUs, the

11
test/DebugInfo/X86/debug-macro.ll
View File

@ -28,11 +28,12 @@
; CHECK-NEXT: DW_MACINFO_end_file
; CHECK-LABEL: .debug_line contents:
; CHECK: Dir Mod Time File Len File Name
; CHECK: file_names[ 1] {{.*}}debug-macro.cpp
; CHECK: file_names[ 2] {{.*}}debug-macro.h
; CHECK: Dir Mod Time File Len File Name
; CHECK: file_names[ 1] {{.*}}debug-macro1.cpp
; CHECK: file_names[ 1]:
; CHECK: name: "debug-macro.cpp"
; CHECK: file_names[ 2]:
; CHECK: name: "debug-macro.h"
; CHECK: file_names[ 1]:
; CHECK: name: "debug-macro1.cpp"
!llvm.dbg.cu = !{!0, !16, !20}
!llvm.module.flags = !{!13, !14}

12
test/DebugInfo/X86/dwarfdump-header-64.s
View File

@ -144,6 +144,14 @@ LH_5_end:
# CHECK: include_directories[ 0] = .debug_str[0x00000028] = "Directory5a"
# CHECK: include_directories[ 1] = .debug_str[0x00000034] = "Directory5b"
# CHECK-NOT: include_directories
# CHECK: file_names[ 0] 0 0x00000051 0x00000052 "File5a"
# CHECK: file_names[ 1] 1 0x00000053 0x00000054 "File5b"
# CHECK: file_names[ 0]:
# CHECK-NEXT: name: "File5a"
# CHECK-NEXT: dir_index: 0
# CHECK-NEXT: mod_time: 0x00000051
# CHECK-NEXT: length: 0x00000052
# CHECK: file_names[ 1]:
# CHECK-NEXT: name: "File5b"
# CHECK-NEXT: dir_index: 1
# CHECK-NEXT: mod_time: 0x00000053
# CHECK-NEXT: length: 0x00000054
# CHECK-NOT: file_names

35
test/DebugInfo/X86/dwarfdump-header.s
View File

@ -258,8 +258,16 @@ LH_4_end:
# CHECK: include_directories[ 1] = "Directory4a"
# CHECK: include_directories[ 2] = "Directory4b"
# CHECK-NOT: include_directories
# CHECK: file_names[ 1] 1 0x00000041 0x00000042 "File4a"
# CHECK: file_names[ 2] 0 0x00000043 0x00000044 "File4b"
# CHECK: file_names[ 1]:
# CHECK-NEXT: name: "File4a"
# CHECK-NEXT: dir_index: 1
# CHECK-NEXT: mod_time: 0x00000041
# CHECK-NEXT: length: 0x00000042
# CHECK: file_names[ 2]:
# CHECK-NEXT: name: "File4b"
# CHECK-NEXT: dir_index: 0
# CHECK-NEXT: mod_time: 0x00000043
# CHECK-NEXT: length: 0x00000044
# CHECK-NOT: file_names
# DWARF v5 line-table header.
@ -329,9 +337,14 @@ LH_5_end:
# CHECK: include_directories[ 0] = .debug_str[0x00000045] = "Directory5a"
# CHECK: include_directories[ 1] = .debug_str[0x00000051] = "Directory5b"
# CHECK-NOT: include_directories
# CHECK: MD5 Checksum
# CHECK: file_names[ 0] 0 00112233445566778899aabbccddeeff .debug_line_str[0x00000000] = "File5a"
# CHECK: file_names[ 1] 1 ffeeddccbbaa99887766554433221100 .debug_line_str[0x00000007] = "File5b"
# CHECK: file_names[ 0]:
# CHECK-NEXT: name: .debug_line_str[0x00000000] = "File5a"
# CHECK-NEXT: dir_index: 0
# CHECK-NEXT: md5_checksum: 00112233445566778899aabbccddeeff
# CHECK: file_names[ 1]:
# CHECK-NEXT: name: .debug_line_str[0x00000007] = "File5b"
# CHECK-NEXT: dir_index: 1
# CHECK-NEXT: md5_checksum: ffeeddccbbaa99887766554433221100
# CHECK-NOT: file_names
.section .debug_line_str,"MS",@progbits,1
@ -410,6 +423,14 @@ dwo_LH_5_end:
# CHECK: include_directories[ 0] = .debug_str[0x0000003d] = "DWODirectory5a"
# CHECK: include_directories[ 1] = .debug_str[0x0000004c] = "DWODirectory5b"
# CHECK-NOT: include_directories
# CHECK: file_names[ 0] 0 0x00000015 0x00000025 "DWOFile5a"
# CHECK: file_names[ 1] 1 0x00000035 0x00000045 "DWOFile5b"
# CHECK: file_names[ 0]:
# CHECK-NEXT: name: "DWOFile5a"
# CHECK-NEXT: dir_index: 0
# CHECK-NEXT: mod_time: 0x00000015
# CHECK-NEXT: length: 0x00000025
# CHECK: file_names[ 1]:
# CHECK-NEXT: name: "DWOFile5b"
# CHECK-NEXT: dir_index: 1
# CHECK-NEXT: mod_time: 0x00000035
# CHECK-NEXT: length: 0x00000045
# CHECK-NOT: file_names

6
test/DebugInfo/X86/dwarfdump-line-dwo.s
View File

@ -47,7 +47,8 @@ LH_1_end:
# PART1-NEXT: version: 4
# PART1-NEXT: prologue_length: 0x00000028
# PART1: include_directories[ 1] = "Directory1"
# PART1: file_names[ 1] {{.*}} "File1"
# PART1: file_names[ 1]
# PART1: name: "File1"
# Second line table.
LH_2_start:
@ -93,5 +94,6 @@ LH_2_end:
# PART2-NEXT: prologue_length: 0x00000022
# PART2-NOT: prologue:
# PART2: include_directories[ 1] = "Dir2"
# PART2: file_names[ 1] {{.*}} "File2"
# PART2: file_names[ 1]
# PART2: name: "File2"
# PART2-NOT: prologue:

12
test/DebugInfo/X86/dwarfdump-line-only.s
View File

@ -94,7 +94,15 @@ ls_F2: .asciz "File2"
# CHECK: include_directories[ 0] = .debug_str[0x00000000] = "Directory1"
# CHECK: include_directories[ 1] = .debug_str[0x0000000b] = "Directory2"
# CHECK-NOT: include_directories
# CHECK: file_names[ 0] 1 0x00000051 0x00000052 .debug_line_str[0x00000000] = "File1"
# CHECK: file_names[ 1] 0 0x00000053 0x00000054 .debug_line_str[0x00000006] = "File2"
# CHECK: file_names[ 0]:
# CHECK-NEXT: name: .debug_line_str[0x00000000] = "File1"
# CHECK-NEXT: dir_index: 1
# CHECK-NEXT: mod_time: 0x00000051
# CHECK-NEXT: length: 0x00000052
# CHECK: file_names[ 1]:
# CHECK-NEXT: name: .debug_line_str[0x00000006] = "File2"
# CHECK-NEXT: dir_index: 0
# CHECK-NEXT: mod_time: 0x00000053
# CHECK-NEXT: length: 0x00000054
# CHECK-NOT: file_names
# CHECK: 0x0000000000000000 {{.*}} is_stmt end_sequence

12
test/DebugInfo/X86/generate-odr-hash.ll
View File

@ -122,8 +122,10 @@
; CHECK-LABEL: .debug_line contents:
; CHECK: Line table prologue
; CHECK-NOT: file_names[
; SINGLE: file_names{{.*}} "bar.h"
; CHECK: file_names{{.*}} "bar.cpp"
; SINGLE: file_names[
; SINGLE-NEXT: name: "bar.h"
; CHECK: file_names[
; CHECK-NEXT: name: "bar.cpp"
; CHECK-NOT: file_names[
; FISSION: .debug_line.dwo contents:
@ -133,8 +135,10 @@
; FISSION-NOT: standard_opcode_lengths
; FISSION-NOT: include_directories
; FISSION-NOT: file_names[
; FISSION: file_names{{.*}} "bar.h"
; FISSION: file_names{{.*}} "bar.cpp"
; FISSION: file_names[
; FISSION-NEXT: name: "bar.h"
; FISSION: file_names[
; FISSION-NEXT: name: "bar.cpp"
; FISSION-NOT: file_names[
; CHECK-LABEL: .debug_str contents:

16
test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
View File

@ -27,11 +27,15 @@
; CHECK-NEXT: debug_line[{{.*}}]
; CHECK-NEXT: Line table prologue:
; CHECK-NEXT: total_length: 0x00000038
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 "simple.c"
; CHECK: file_names[ 1]:
; CHECK-NEXT: name: "simple.c"
; CHECK-NEXT: dir_index: 0
; CHECK: debug_line[{{.*}}]
; CHECK-NEXT: Line table prologue:
; CHECK-NEXT: total_length: 0x00000039
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 "simple2.c"
; CHECK: file_names[ 1]:
; CHECK-NEXT: name: "simple2.c"
; CHECK-NEXT: dir_index: 0
; CHECK-NOT: file_names
; DWARF3: .debug_info contents:
@ -46,11 +50,15 @@
; DWARF3-NEXT: debug_line[{{.*}}]
; DWARF3-NEXT: Line table prologue:
; DWARF3-NEXT: total_length: 0x00000038
; DWARF3: file_names[ 1] 0 0x00000000 0x00000000 "simple.c"
; DWARF3: file_names[ 1]:
; DWARF3-NEXT: name: "simple.c"
; DWARF3-NEXT: dir_index: 0
; DWARF3: debug_line[{{.*}}]
; DWARF3-NEXT: Line table prologue:
; DWARF3-NEXT: total_length: 0x00000039
; DWARF3: file_names[ 1] 0 0x00000000 0x00000000 "simple2.c"
; DWARF3: file_names[ 1]:
; DWARF3-NEXT: name: "simple2.c"
; DWARF3-NEXT: dir_index: 0
; DWARF3-NOT: file_names
; PR15408

12
test/DebugInfo/debugmacinfo.test
View File

@ -22,6 +22,12 @@ TEST_MACINFO: DW_MACINFO_define - lineno: 3 macro: M2(x,y) ((x)+(y)* Value2)
TEST_MACINFO: DW_MACINFO_end_file
TEST_LINE: .debug_line contents:
TEST_LINE: file_names[ 1] 0 0x00000000 0x00000000 "dwarfdump-macro.cc"
TEST_LINE: file_names[ 2] 1 0x00000000 0x00000000 "dwarfdump-macro-cmd.h"
TEST_LINE: file_names[ 3] 0 0x00000000 0x00000000 "dwarfdump-macro.h"
TEST_LINE: file_names[ 1]:
TEST_LINE-NEXT: name: "dwarfdump-macro.cc"
TEST_LINE-NEXT: dir_index: 0
TEST_LINE: file_names[ 2]:
TEST_LINE-NEXT: name: "dwarfdump-macro-cmd.h"
TEST_LINE-NEXT: dir_index: 1
TEST_LINE: file_names[ 3]:
TEST_LINE-NEXT: name: "dwarfdump-macro.h"
TEST_LINE-NEXT: dir_index: 0

12
test/Linker/subprogram-linkonce-weak.ll
View File

@ -147,14 +147,18 @@ entry:
; DW-LABEL: .debug_line contents:
; Check that we have the right things in the line table as well.
; DWLW-LABEL: file_names[{{ *}}1]{{.*}} "bar.c"
; DWLW-LABEL: file_names[ 1]:
; DWLW-NEXT: name: "bar.c"
; DWLW: 2 0 1 0 0 is_stmt prologue_end
; DWLW-LABEL: file_names[{{ *}}1]{{.*}} "foo.c"
; DWLW-LABEL: file_names[ 1]:
; DWLW-NEXT: name: "foo.c"
; DWLW: 52 0 1 0 0 is_stmt prologue_end
; DWLW-NOT: prologue_end
; DWWL-LABEL: file_names[{{ *}}1]{{.*}} "foo.c"
; DWWL-LABEL: file_names[ 1]:
; DWWL-NEXT: name: "foo.c"
; DWWL: 52 0 1 0 0 is_stmt prologue_end
; DWWL-LABEL: file_names[{{ *}}1]{{.*}} "bar.c"
; DWWL-LABEL: file_names[ 1]:
; DWWL-NEXT: name: "bar.c"
; DWWL: 2 0 1 0 0 is_stmt prologue_end
; DWWL-NOT: prologue_end

3
test/MC/ARM/dwarf-asm-multiple-sections.s
View File

@ -55,7 +55,8 @@ b:
// DWARF-DL: version: [[DWVER]]
// DWARF-DL-5: address_size: 4
// DWARF-DL-5: include_directories[ 0] = ""
// DWARF-DL: file_names[ [[DWFILE]]] {{.*}} "<stdin>"
// DWARF-DL: file_names[ [[DWFILE]]]:
// DWARF-DL: name: "<stdin>"
// DWARF-DL: 0x0000000000000000 17 0 1 0 0 is_stmt
// DWARF-DL-NEXT: 0x0000000000000004 17 0 1 0 0 is_stmt end_sequence
// DWARF-DL-NEXT: 0x0000000000000000 21 0 1 0 0 is_stmt

11
test/MC/ELF/debug-md5.s
View File

@ -13,9 +13,14 @@
# CHECK: include_directories[ 1] = .debug_line_str[0x[[DIR1:[0-9a-f]+]]] = "dir1"
# CHECK: include_directories[ 2] = .debug_line_str[0x[[DIR2:[0-9a-f]+]]] = "dir2"
# CHECK-NOT: include_directories
# CHECK: Dir MD5 Checksum File Name
# CHECK: file_names[ 0] 1 00112233445566778899aabbccddeeff .debug_line_str[0x[[FILE1:[0-9a-f]+]]] = "foo"
# CHECK: file_names[ 1] 2 ffeeddccbbaa99887766554433221100 .debug_line_str[0x[[FILE2:[0-9a-f]+]]] = "bar"
# CHECK: file_names[ 0]:
# CHECK-NEXT: name: .debug_line_str[0x[[FILE1:[0-9a-f]+]]] = "foo"
# CHECK-NEXT: dir_index: 1
# CHECK-NEXT: md5_checksum: 00112233445566778899aabbccddeeff
# CHECK: file_names[ 1]:
# CHECK-NEXT: name: .debug_line_str[0x[[FILE2:[0-9a-f]+]]] = "bar"
# CHECK-NEXT: dir_index: 2
# CHECK-NEXT: md5_checksum: ffeeddccbbaa99887766554433221100
# CHECK: .debug_line_str contents:
# CHECK-NEXT: 0x[[DIR0]]: ""

14
test/MC/MachO/gen-dwarf-cpp.s
View File

@ -16,11 +16,15 @@ L1: leave
// We check that the source name "t.s" is picked up
// CHECK: include_directories[ 1] = "{{.*(/|\\\\)}}test{{(/|\\\\)}}MC{{(/|\\\\)}}MachO"
// CHECK: include_directories[ 2] = "inc"
// CHECK: Dir Mod Time File Len File Name
// CHECK: ---- ---------- ---------- ---------------------------
// CHECK: file_names[ 1] 1 0x00000000 0x00000000 "gen-dwarf-cpp.s"
// CHECK: file_names[ 2] 0 0x00000000 0x00000000 "t.s"
// CHECK: file_names[ 3] 2 0x00000000 0x00000000 "g.s"
// CHECK: file_names[ 1]:
// CHECK-NEXT: name: "gen-dwarf-cpp.s"
// CHECK-NEXT: dir_index: 1
// CHECK: file_names[ 2]:
// CHECK-NEXT: name: "t.s"
// CHECK-NEXT: dir_index: 0
// CHECK: file_names[ 3]:
// CHECK-NEXT: name: "g.s"
// CHECK-NEXT: dir_index: 2
// CHECK-NOT: file_names
// We check that the source line number 100 is picked up before the "movl"

10
test/MC/MachO/gen-dwarf-macro-cpp.s
View File

@ -11,7 +11,9 @@
// rdar://12637628
// We check that the source name "foo.S" is picked up
// CHECK: Dir Mod Time File Len File Name
// CHECK: ---- ---------- ---------- ---------------------------
// CHECK: file_names[ 1] 1 0x00000000 0x00000000 "gen-dwarf-macro-cpp.s"
// CHECK: file_names[ 2] 0 0x00000000 0x00000000 "foo.S"
// CHECK: file_names[ 1]:
// CHECK-NEXT: name: "gen-dwarf-macro-cpp.s"
// CHECK-NEXT: dir_index: 1
// CHECK: file_names[ 2]:
// CHECK-NEXT: name: "foo.S"
// CHECK-NEXT: dir_index: 0

6
test/MC/MachO/gen-dwarf.s
View File

@ -109,9 +109,9 @@ _x: .long 1
// CHECK: standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
// CHECK: standard_opcode_lengths[DW_LNS_set_isa] = 1
// We don't check include_directories as it has a temp path
// CHECK: Dir Mod Time File Len File Name
// CHECK: ---- ---------- ---------- ---------------------------
// CHECK: file_names[ 1] 1 0x00000000 0x00000000 "gen-dwarf.s"
// CHECK: file_names[ 1]:
// CHECK-NEXT: name: "gen-dwarf.s"
// CHECK-NEXT: dir_index: 1
// CHECK: Address Line Column File ISA Discriminator Flags
// CHECK: ------------------ ------ ------ ------ --- ------------- -------------

18
test/tools/dsymutil/X86/basic-linking-x86.test
View File

@ -153,18 +153,18 @@ CHECK-NEXT:[0x0000000100000f40, 0x0000000100000f84)
CHECK-NEXT:[0x0000000100000f90, 0x0000000100000fa9)
CHECK: .debug_line contents:
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic1.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic1.c"
CHECK-NEXT: dir_index: 0
CHECK: Address Line Column File ISA Discriminator Flags
CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
CHECK-NEXT: 0x0000000100000ea0 23 0 1 0 0 is_stmt
CHECK-NEXT: 0x0000000100000eb6 24 0 1 0 0 is_stmt prologue_end
CHECK-NEXT: 0x0000000100000ec4 24 0 1 0 0 is_stmt end_sequence
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic2.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic2.c"
CHECK-NEXT: dir_index: 0
CHECK: Address Line Column File ISA Discriminator Flags
CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
CHECK-NEXT: 0x0000000100000ed0 19 0 1 0 0 is_stmt
@ -174,9 +174,9 @@ CHECK-NEXT: 0x0000000100000f20 14 0 1 0 0 is_stmt
CHECK-NEXT: 0x0000000100000f24 15 0 1 0 0 is_stmt prologue_end
CHECK-NEXT: 0x0000000100000f37 15 0 1 0 0 is_stmt end_sequence
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic3.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic3.c"
CHECK-NEXT: dir_index: 0
CHECK: Address Line Column File ISA Discriminator Flags
CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
CHECK-NEXT: 0x0000000100000f40 16 0 1 0 0 is_stmt

18
test/tools/dsymutil/X86/basic-lto-dw4-linking-x86.test
View File

@ -138,9 +138,9 @@ CHECK-NEXT: Address Range Header: length = 0x0000002c, version = 0x0002, cu_offs
CHECK-NEXT: [0x0000000100000f90, 0x0000000100000fb4)
CHECK: .debug_line contents:
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic1.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic1.c"
CHECK-NEXT: dir_index: 0
CHECK: Address Line Column File ISA Discriminator Flags
CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
CHECK-NEXT: 0x0000000100000f40 26 0 1 0 0 is_stmt
@ -148,9 +148,9 @@ CHECK-NEXT: 0x0000000100000f44 27 10 1 0 0 is_stmt p
CHECK-NEXT: 0x0000000100000f49 27 3 1 0 0
CHECK-NEXT: 0x0000000100000f4b 27 3 1 0 0 end_sequence
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic2.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic2.c"
CHECK-NEXT: dir_index: 0
CHECK: Address Line Column File ISA Discriminator Flags
CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
CHECK-NEXT: 0x0000000100000f50 19 0 1 0 0 is_stmt
@ -164,9 +164,9 @@ CHECK-NEXT: 0x0000000100000f83 20 31 1 0 0
CHECK-NEXT: 0x0000000100000f85 20 3 1 0 0
CHECK-NEXT: 0x0000000100000f87 20 3 1 0 0 end_sequence
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic3.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic3.c"
CHECK-NEXT: dir_index: 0
CHECK: Address Line Column File ISA Discriminator Flags
CHECK-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
CHECK-NEXT: 0x0000000100000f90 16 0 1 0 0 is_stmt

18
test/tools/dsymutil/X86/basic-lto-linking-x86.test
View File

@ -150,25 +150,25 @@ CHECK-NEXT: [0x0000000100000f90, 0x0000000100000fb4)
CHECK: .debug_line contents
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic1.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic1.c"
CHECK-NEXT: dir_index: 0
CHECK: 0x0000000100000f40 23 0 1 0 0 is_stmt
CHECK: 0x0000000100000f44 24 0 1 0 0 is_stmt prologue_end
CHECK: 0x0000000100000f4b 24 0 1 0 0 is_stmt end_sequence
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic2.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic2.c"
CHECK-NEXT: dir_index: 0
CHECK: 0x0000000100000f50 19 0 1 0 0 is_stmt
CHECK: 0x0000000100000f54 20 0 1 0 0 is_stmt prologue_end
CHECK: 0x0000000100000f63 15 0 1 0 0 is_stmt
CHECK: 0x0000000100000f72 20 0 1 0 0 is_stmt
CHECK: 0x0000000100000f89 20 0 1 0 0 is_stmt end_sequence
CHECK: Dir Mod Time File Len File Name
CHECK-NEXT: ---- ---------- ---------- ---------------------------
CHECK-NEXT: file_names[ 1] 0 0x00000000 0x00000000 "basic3.c"
CHECK: file_names[ 1]:
CHECK-NEXT: name: "basic3.c"
CHECK-NEXT: dir_index: 0
CHECK: 0x0000000100000f90 16 0 1 0 0 is_stmt
CHECK: 0x0000000100000f94 12 0 1 0 0 is_stmt prologue_end
CHECK: 0x0000000100000f9a 17 0 1 0 0 is_stmt

26
tools/llvm-objdump/llvm-objdump.cpp
View File

@ -408,7 +408,7 @@ protected:
std::unordered_map<std::string, std::vector<StringRef>> LineCache;
private:
bool cacheSource(const std::string& File);
bool cacheSource(const DILineInfo& LineInfoFile);
public:
SourcePrinter() = default;
@ -423,23 +423,29 @@ public:
StringRef Delimiter = "; ");
};
bool SourcePrinter::cacheSource(const std::string& File) {
auto BufferOrError = MemoryBuffer::getFile(File);
if (!BufferOrError)
return false;
bool SourcePrinter::cacheSource(const DILineInfo &LineInfo) {
std::unique_ptr<MemoryBuffer> Buffer;
if (LineInfo.Source) {
Buffer = MemoryBuffer::getMemBuffer(*LineInfo.Source);
} else {
auto BufferOrError = MemoryBuffer::getFile(LineInfo.FileName);
if (!BufferOrError)
return false;
Buffer = std::move(*BufferOrError);
}
// Chomp the file to get lines
size_t BufferSize = (*BufferOrError)->getBufferSize();
const char *BufferStart = (*BufferOrError)->getBufferStart();
size_t BufferSize = Buffer->getBufferSize();
const char *BufferStart = Buffer->getBufferStart();
for (const char *Start = BufferStart, *End = BufferStart;
End < BufferStart + BufferSize; End++)
if (*End == '\n' || End == BufferStart + BufferSize - 1 ||
(*End == '\r' && *(End + 1) == '\n')) {
LineCache[File].push_back(StringRef(Start, End - Start));
LineCache[LineInfo.FileName].push_back(StringRef(Start, End - Start));
if (*End == '\r')
End++;
Start = End + 1;
}
SourceCache[File] = std::move(*BufferOrError);
SourceCache[LineInfo.FileName] = std::move(Buffer);
return true;
}
@ -463,7 +469,7 @@ void SourcePrinter::printSourceLine(raw_ostream &OS, uint64_t Address,
OS << Delimiter << LineInfo.FileName << ":" << LineInfo.Line << "\n";
if (PrintSource) {
if (SourceCache.find(LineInfo.FileName) == SourceCache.end())
if (!cacheSource(LineInfo.FileName))
if (!cacheSource(LineInfo))
return;
auto FileBuffer = SourceCache.find(LineInfo.FileName);
if (FileBuffer != SourceCache.end()) {

13
unittests/IR/MetadataTest.cpp
View File

@ -1450,19 +1450,24 @@ TEST_F(DIFileTest, get) {
DIFile::ChecksumKind CSKind = DIFile::ChecksumKind::CSK_MD5;
StringRef ChecksumString = "000102030405060708090a0b0c0d0e0f";
DIFile::ChecksumInfo<StringRef> Checksum(CSKind, ChecksumString);
auto *N = DIFile::get(Context, Filename, Directory, Checksum);
StringRef Source = "source";
auto *N = DIFile::get(Context, Filename, Directory, Checksum, Source);
EXPECT_EQ(dwarf::DW_TAG_file_type, N->getTag());
EXPECT_EQ(Filename, N->getFilename());
EXPECT_EQ(Directory, N->getDirectory());
EXPECT_EQ(Checksum, N->getChecksum());
EXPECT_EQ(N, DIFile::get(Context, Filename, Directory, Checksum));
EXPECT_EQ(Source, N->getSource());
EXPECT_EQ(N, DIFile::get(Context, Filename, Directory, Checksum, Source));
EXPECT_NE(N, DIFile::get(Context, "other", Directory, Checksum));
EXPECT_NE(N, DIFile::get(Context, Filename, "other", Checksum));
EXPECT_NE(N, DIFile::get(Context, "other", Directory, Checksum, Source));
EXPECT_NE(N, DIFile::get(Context, Filename, "other", Checksum, Source));
DIFile::ChecksumInfo<StringRef> OtherChecksum(DIFile::ChecksumKind::CSK_SHA1, ChecksumString);
EXPECT_NE(
N, DIFile::get(Context, Filename, Directory, OtherChecksum));
StringRef OtherSource = "other";
EXPECT_NE(N, DIFile::get(Context, Filename, Directory, Checksum, OtherSource));
EXPECT_NE(N, DIFile::get(Context, Filename, Directory, Checksum));
EXPECT_NE(N, DIFile::get(Context, Filename, Directory));
TempDIFile Temp = N->clone();