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[CodeView] Write CodeView line information.

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Differential Revision: https://reviews.llvm.org/D32716

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301882 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Zachary Turner
2017-05-01 23:27:42 +00:00
parent 2cc0b076e8
commit 4c78c0e348
24 changed files with 526 additions and 14 deletions
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38
lib/DebugInfo/CodeView/ModuleDebugFragmentRecord.cpp
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@@ -8,6 +8,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/CodeView/ModuleDebugFragmentRecord.h"
#include "llvm/DebugInfo/CodeView/ModuleDebugFragment.h"
#include "llvm/Support/BinaryStreamReader.h"
@@ -30,6 +31,13 @@ Error ModuleDebugFragmentRecord::initialize(BinaryStreamRef Stream,
ModuleDebugFragmentKind Kind =
static_cast<ModuleDebugFragmentKind>(uint32_t(Header->Kind));
switch (Kind) {
case ModuleDebugFragmentKind::FileChecksums:
case ModuleDebugFragmentKind::Lines:
break;
default:
llvm_unreachable("Unexpected debug fragment kind!");
}
if (auto EC = Reader.readStreamRef(Info.Data, Header->Length))
return EC;
Info.Kind = Kind;
@@ -37,7 +45,9 @@ Error ModuleDebugFragmentRecord::initialize(BinaryStreamRef Stream,
}
uint32_t ModuleDebugFragmentRecord::getRecordLength() const {
return sizeof(ModuleDebugFragmentHeader) + Data.getLength();
uint32_t Result = sizeof(ModuleDebugFragmentHeader) + Data.getLength();
assert(Result % 4 == 0);
return Result;
}
ModuleDebugFragmentKind ModuleDebugFragmentRecord::kind() const { return Kind; }
@@ -45,3 +55,29 @@ ModuleDebugFragmentKind ModuleDebugFragmentRecord::kind() const { return Kind; }
BinaryStreamRef ModuleDebugFragmentRecord::getRecordData() const {
return Data;
}
ModuleDebugFragmentRecordBuilder::ModuleDebugFragmentRecordBuilder(
ModuleDebugFragmentKind Kind, ModuleDebugFragment &Frag)
: Kind(Kind), Frag(Frag) {}
uint32_t ModuleDebugFragmentRecordBuilder::calculateSerializedLength() {
uint32_t Size = sizeof(ModuleDebugFragmentHeader) +
alignTo(Frag.calculateSerializedLength(), 4);
return Size;
}
Error ModuleDebugFragmentRecordBuilder::commit(BinaryStreamWriter &Writer) {
ModuleDebugFragmentHeader Header;
Header.Kind = uint32_t(Kind);
Header.Length =
calculateSerializedLength() - sizeof(ModuleDebugFragmentHeader);
if (auto EC = Writer.writeObject(Header))
return EC;
if (auto EC = Frag.commit(Writer))
return EC;
if (auto EC = Writer.padToAlignment(4))
return EC;
return Error::success();
}