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MC: Split MCObjectWriter out of MCAssembler.cpp.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98949 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2010-03-19 09:28:59 +00:00
parent bdd9281f35
commit 53b2338a1d
5 changed files with 230 additions and 148 deletions
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39
include/llvm/MC/MCAssembler.h
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@@ -26,6 +26,7 @@ class MCAssembler;
class MCContext;
class MCExpr;
class MCFragment;
class MCObjectWriter;
class MCSection;
class MCSectionData;
class MCSymbol;
@@ -618,6 +619,23 @@ private:
unsigned SubsectionsViaSymbols : 1;
private:
/// Evaluate a fixup to a relocatable expression and the value which should be
/// placed into the fixup.
///
/// \param Layout The layout to use for evaluation.
/// \param Fixup The fixup to evaluate.
/// \param DF The fragment the fixup is inside.
/// \param Target [out] On return, the relocatable expression the fixup
/// evaluates to.
/// \param Value [out] On return, the value of the fixup as currently layed
/// out.
/// \return Whether the fixup value was fully resolved. This is true if the
/// \arg Value result is fixed, otherwise the value may change due to
/// relocation.
bool EvaluateFixup(const MCAsmLayout &Layout,
MCAsmFixup &Fixup, MCDataFragment *DF,
MCValue &Target, uint64_t &Value) const;
/// Check whether a fixup can be satisfied, or whether it needs to be relaxed
/// (increased in size, in order to hold its value correctly).
bool FixupNeedsRelaxation(MCAsmFixup &Fixup, MCDataFragment *DF);
@@ -631,7 +649,6 @@ private:
/// were adjusted.
bool LayoutOnce();
// FIXME: Make protected once we factor out object writer classes.
public:
/// Find the symbol which defines the atom containing given address, inside
/// the given section, or null if there is no such symbol.
@@ -652,22 +669,10 @@ public:
/// defining a separate atom.
bool isSymbolLinkerVisible(const MCSymbolData *SD) const;
/// Evaluate a fixup to a relocatable expression and the value which should be
/// placed into the fixup.
///
/// \param Layout The layout to use for evaluation.
/// \param Fixup The fixup to evaluate.
/// \param DF The fragment the fixup is inside.
/// \param Target [out] On return, the relocatable expression the fixup
/// evaluates to.
/// \param Value [out] On return, the value of the fixup as currently layed
/// out.
/// \return Whether the fixup value was fully resolved. This is true if the
/// \arg Value result is fixed, otherwise the value may change due to
/// relocation.
bool EvaluateFixup(const MCAsmLayout &Layout,
MCAsmFixup &Fixup, MCDataFragment *DF,
MCValue &Target, uint64_t &Value) const;
/// Emit the section contents using the given object writer.
//
// FIXME: Should MCAssembler always have a reference to the object writer?
void WriteSectionData(const MCSectionData *Section, MCObjectWriter *OW) const;
public:
/// Construct a new assembler instance.