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Revert a series of commits starting at r228886 which is triggering some

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regressions for LLDB on Linux. Rafael indicated on lldb-dev that we
should just go ahead and revert these but that he wasn't at a computer.
The patches backed out are as follows:

r228980: Add support for having multiple sections with the name and ...
r228889: Invert the section relocation map.
r228888: Use the existing SymbolTableIndex intsead of doing a lookup.
r228886: Create the Section -> Rel Section map when it is first needed.

These patches look pretty nice to me, so hoping its not too hard to get
them re-instated. =D

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229080 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2015-02-13 07:52:39 +00:00
parent 2614564769
commit 00ae03a747
12 changed files with 110 additions and 196 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/llvm/CodeGen/CommandFlags.h
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@@ -207,10 +207,6 @@ FunctionSections("function-sections",
cl::desc("Emit functions into separate sections"),
cl::init(false));
cl::opt<bool> UniqueSectionNames("unique-section-names",
cl::desc("Give unique names to every section"),
cl::init(true));
cl::opt<llvm::JumpTable::JumpTableType>
JTableType("jump-table-type",
cl::desc("Choose the type of Jump-Instruction Table for jumptable."),
@@ -288,7 +284,6 @@ static inline TargetOptions InitTargetOptionsFromCodeGenFlags() {
Options.UseInitArray = !UseCtors;
Options.DataSections = DataSections;
Options.FunctionSections = FunctionSections;
Options.UniqueSectionNames = UniqueSectionNames;
Options.MCOptions = InitMCTargetOptionsFromFlags();
Options.JTType = JTableType;

4
include/llvm/MC/MCContext.h
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@@ -277,10 +277,6 @@ namespace llvm {
unsigned Flags, unsigned EntrySize,
StringRef Group);
const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
unsigned Flags, unsigned EntrySize,
StringRef Group, bool Unique);
void renameELFSection(const MCSectionELF *Section, StringRef Name);
const MCSectionELF *CreateELFGroupSection();

10
include/llvm/MC/MCSectionELF.h
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@@ -39,8 +39,6 @@ class MCSectionELF : public MCSection {
/// below.
unsigned Flags;
bool Unique;
/// EntrySize - The size of each entry in this section. This size only
/// makes sense for sections that contain fixed-sized entries. If a
/// section does not contain fixed-sized entries 'EntrySize' will be 0.
@@ -50,10 +48,10 @@ class MCSectionELF : public MCSection {
private:
friend class MCContext;
MCSectionELF(StringRef Section, unsigned type, unsigned flags, SectionKind K,
unsigned entrySize, const MCSymbol *group, bool Unique)
: MCSection(SV_ELF, K), SectionName(Section), Type(type), Flags(flags),
Unique(Unique), EntrySize(entrySize), Group(group) {}
MCSectionELF(StringRef Section, unsigned type, unsigned flags,
SectionKind K, unsigned entrySize, const MCSymbol *group)
: MCSection(SV_ELF, K), SectionName(Section), Type(type), Flags(flags),
EntrySize(entrySize), Group(group) {}
~MCSectionELF();
void setSectionName(StringRef Name) { SectionName = Name; }

2
include/llvm/Target/TargetMachine.h
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@@ -171,8 +171,6 @@ public:
return Options.MCOptions.AsmVerbose;
}
bool getUniqueSectionNames() const { return Options.UniqueSectionNames; }
/// Return true if data objects should be emitted into their own section,
/// corresponds to -fdata-sections.
bool getDataSections() const {

6
include/llvm/Target/TargetOptions.h
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@@ -78,8 +78,8 @@ namespace llvm {
EnableFastISel(false), PositionIndependentExecutable(false),
UseInitArray(false), DisableIntegratedAS(false),
CompressDebugSections(false), FunctionSections(false),
DataSections(false), UniqueSectionNames(true), TrapUnreachable(false),
TrapFuncName(), FloatABIType(FloatABI::Default),
DataSections(false), TrapUnreachable(false), TrapFuncName(),
FloatABIType(FloatABI::Default),
AllowFPOpFusion(FPOpFusion::Standard), JTType(JumpTable::Single),
FCFI(false), ThreadModel(ThreadModel::POSIX),
CFIType(CFIntegrity::Sub), CFIEnforcing(false), CFIFuncName() {}
@@ -198,8 +198,6 @@ namespace llvm {
/// Emit data into separate sections.
unsigned DataSections : 1;
unsigned UniqueSectionNames : 1;
/// Emit target-specific trap instruction for 'unreachable' IR instructions.
unsigned TrapUnreachable : 1;