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-rw-r--r--lib/Linker/LinkModules.cpp15
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index cf9f777a53..88bf62186f 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -827,6 +827,18 @@ static bool LinkAppendingVars(Module *M,
return Error(ErrorMsg,
"Appending variables linked with different const'ness!");
+ if (G1->getAlignment() != G2->getAlignment())
+ return Error(ErrorMsg,
+ "Appending variables with different alignment need to be linked!");
+
+ if (G1->getVisibility() != G2->getVisibility())
+ return Error(ErrorMsg,
+ "Appending variables with different visibility need to be linked!");
+
+ if (G1->getSection() != G2->getSection())
+ return Error(ErrorMsg,
+ "Appending variables with different section name need to be linked!");
+
unsigned NewSize = T1->getNumElements() + T2->getNumElements();
ArrayType *NewType = ArrayType::get(T1->getElementType(), NewSize);
@@ -837,6 +849,9 @@ static bool LinkAppendingVars(Module *M,
new GlobalVariable(NewType, G1->isConstant(), G1->getLinkage(),
/*init*/0, First->first, M, G1->isThreadLocal());
+ // Propagate alignment, visibility and section info.
+ CopyGVAttributes(NG, G1);
+
// Merge the initializer...
Inits.reserve(NewSize);
if (ConstantArray *I = dyn_cast<ConstantArray>(G1->getInitializer())) {