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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.

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Patch by Ashok Thirumurthi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165586 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Kaylor
2012-10-10 01:41:33 +00:00
parent 97d9f081a9
commit 3a129c8592
6 changed files with 41 additions and 1 deletions
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6
include/llvm/Object/ObjectFile.h
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@ -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);