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Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127944 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stuart Hastings 2011-03-19 02:42:31 +00:00
parent 825dd96918
commit 65c8bca788
4 changed files with 13 additions and 9 deletions
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2
include/llvm/MC/MCSectionMachO.h
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@ -157,10 +157,12 @@ public:
/// flavored .s file. If successful, this fills in the specified Out
/// parameters and returns an empty string. When an invalid section
/// specifier is present, this returns a string indicating the problem.
/// If no TAA was parsed, TAA is not altered, and TAAWasSet becomes false.
static std::string ParseSectionSpecifier(StringRef Spec, // In.
StringRef &Segment, // Out.
StringRef &Section, // Out.
unsigned &TAA, // Out.
bool &TAAParsed, // Out.
unsigned &StubSize); // Out.
virtual void PrintSwitchToSection(const MCAsmInfo &MAI,

11
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@ -641,10 +641,11 @@ getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
// Parse the section specifier and create it if valid.
StringRef Segment, Section;
unsigned TAA = (unsigned)MCSectionMachO::SECTION_ATTRIBUTES, StubSize = 0;
unsigned TAA = 0, StubSize = 0;
bool TAAParsed;
std::string ErrorCode =
MCSectionMachO::ParseSectionSpecifier(GV->getSection(), Segment, Section,
TAA, StubSize);
TAA, TAAParsed, StubSize);
if (!ErrorCode.empty()) {
// If invalid, report the error with report_fatal_error.
report_fatal_error("Global variable '" + GV->getNameStr() +
@ -654,17 +655,13 @@ getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
return DataSection;
}
bool TAAWasSet = (TAA != MCSectionMachO::SECTION_ATTRIBUTES);
if (!TAAWasSet)
TAA = 0; // Sensible default if this is a new section.
// Get the section.
const MCSectionMachO *S =
getContext().getMachOSection(Segment, Section, TAA, StubSize, Kind);
// If TAA wasn't set by ParseSectionSpecifier() above,
// use the value returned by getMachOSection() as a default.
if (!TAAWasSet)
if (!TAAParsed)
TAA = S->getTypeAndAttributes();
// Okay, now that we got the section, verify that the TAA & StubSize agree.

5
lib/MC/MCParser/DarwinAsmParser.cpp
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@ -435,10 +435,11 @@ bool DarwinAsmParser::ParseDirectiveSection(StringRef, SMLoc) {
StringRef Segment, Section;
unsigned StubSize;
unsigned TAA = 0;
unsigned TAA;
bool TAAParsed;
std::string ErrorStr =
MCSectionMachO::ParseSectionSpecifier(SectionSpec, Segment, Section,
TAA, StubSize);
TAA, TAAParsed, StubSize);
if (!ErrorStr.empty())
return Error(Loc, ErrorStr.c_str());

4
lib/MC/MCSectionMachO.cpp
View File

@ -180,7 +180,9 @@ std::string MCSectionMachO::ParseSectionSpecifier(StringRef Spec, // In.
StringRef &Segment, // Out.
StringRef &Section, // Out.
unsigned &TAA, // Out.
bool &TAAParsed, // Out.
unsigned &StubSize) { // Out.
TAAParsed = false;
// Find the first comma.
std::pair<StringRef, StringRef> Comma = Spec.split(',');
@ -211,6 +213,7 @@ std::string MCSectionMachO::ParseSectionSpecifier(StringRef Spec, // In.
"between 1 and 16 characters";
// If there is no comma after the section, we're done.
TAA = 0;
StubSize = 0;
if (Comma.second.empty())
return "";
@ -235,6 +238,7 @@ std::string MCSectionMachO::ParseSectionSpecifier(StringRef Spec, // In.
// Remember the TypeID.
TAA = TypeID;
TAAParsed = true;
// If we have no comma after the section type, there are no attributes.
if (Comma.second.empty()) {