diff options
| -rw-r--r-- | include/llvm/MC/SectionKind.h | 14 | ||||
| -rw-r--r-- | lib/Target/TargetLoweringObjectFile.cpp | 9 |
2 files changed, 20 insertions, 3 deletions
diff --git a/include/llvm/MC/SectionKind.h b/include/llvm/MC/SectionKind.h index f125d15..c9557f2 100644 --- a/include/llvm/MC/SectionKind.h +++ b/include/llvm/MC/SectionKind.h @@ -88,6 +88,13 @@ class SectionKind { /// BSS - Zero initialized writeable data. BSS, + /// BSSLocal - This is BSS (zero initialized and writable) data + /// which has local linkage. + BSSLocal, + + /// BSSExtern - This is BSS data with normal external linkage. + BSSExtern, + /// Common - Data with common linkage. These represent tentative /// definitions, which always have a zero initializer and are never /// marked 'constant'. @@ -166,7 +173,10 @@ public: return isBSS() || isCommon() || isDataRel() || isReadOnlyWithRel(); } - bool isBSS() const { return K == BSS; } + bool isBSS() const { return K == BSS || K == BSSLocal || K == BSSExtern; } + bool isBSSLocal() const { return K == BSSLocal; } + bool isBSSExtern() const { return K == BSSExtern; } + bool isCommon() const { return K == Common; } bool isDataRel() const { @@ -213,6 +223,8 @@ public: static SectionKind getThreadBSS() { return get(ThreadBSS); } static SectionKind getThreadData() { return get(ThreadData); } static SectionKind getBSS() { return get(BSS); } + static SectionKind getBSSLocal() { return get(BSSLocal); } + static SectionKind getBSSExtern() { return get(BSSExtern); } static SectionKind getCommon() { return get(Common); } static SectionKind getDataRel() { return get(DataRel); } static SectionKind getDataRelLocal() { return get(DataRelLocal); } diff --git a/lib/Target/TargetLoweringObjectFile.cpp b/lib/Target/TargetLoweringObjectFile.cpp index 7b00b33..77203e0 100644 --- a/lib/Target/TargetLoweringObjectFile.cpp +++ b/lib/Target/TargetLoweringObjectFile.cpp @@ -146,8 +146,13 @@ SectionKind TargetLoweringObjectFile::getKindForGlobal(const GlobalValue *GV, return SectionKind::getCommon(); // Variable can be easily put to BSS section. - if (isSuitableForBSS(GVar)) + if (isSuitableForBSS(GVar)) { + if (GVar->hasLocalLinkage()) + return SectionKind::getBSSLocal(); + else if (GVar->hasExternalLinkage()) + return SectionKind::getBSSExtern(); return SectionKind::getBSS(); + } Constant *C = GVar->getInitializer(); @@ -926,7 +931,7 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind, // Put zero initialized globals with strong external linkage in the // DATA, __common section with the .zerofill directive. - if (Kind.isBSS() && GV->hasExternalLinkage()) + if (Kind.isBSSExtern()) return DataCommonSection; // Otherwise, just drop the variable in the normal data section. |