This patch adds new functions to the SectionRef and ObjectFile interfaces to determine whether or not a section is meant to be read-only. These functions will be used by the MCJIT RuntimeDyld to give hints to the memory manager during the object loading process in a future patch.

Patch by Ashok Thirumurthi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165586 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/llvm/Object/ObjectFile.h b/include/llvm/Object/ObjectFile.h
index 1709974ac5..99ddb3b87b 100644
--- a/include/llvm/Object/ObjectFile.h
+++ b/include/llvm/Object/ObjectFile.h
@@ -163,6 +163,7 @@ public:
   error_code isRequiredForExecution(bool &Result) const;
   error_code isVirtual(bool &Result) const;
   error_code isZeroInit(bool &Result) const;
+  error_code isReadOnlyData(bool &Result) const;
 
   error_code containsSymbol(SymbolRef S, bool &Result) const;
 
@@ -316,6 +317,7 @@ protected:
   // A section is 'virtual' if its contents aren't present in the object image.
   virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const = 0;
   virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const = 0;
+  virtual error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const = 0;
   virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
                                            bool &Result) const = 0;
   virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const = 0;
@@ -510,6 +512,10 @@ inline error_code SectionRef::isZeroInit(bool &Result) const {
   return OwningObject->isSectionZeroInit(SectionPimpl, Result);
 }
 
+inline error_code SectionRef::isReadOnlyData(bool &Result) const {
+  return OwningObject->isSectionReadOnlyData(SectionPimpl, Result);
+}
+
 inline error_code SectionRef::containsSymbol(SymbolRef S, bool &Result) const {
   return OwningObject->sectionContainsSymbol(SectionPimpl, S.SymbolPimpl,
                                              Result);