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finalizing HighVariable from symbols

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This commit is contained in:
caheckman 2019-11-01 12:29:47 -04:00
parent cbbfc9ca18
commit cfc1177ac1
5 changed files with 30 additions and 14 deletions
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6
Ghidra/Features/Decompiler/src/decompile/cpp/variable.hh
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@ -47,7 +47,8 @@ public:
typedirty = 2, ///< The data-type for the HighVariable is dirty
coverdirty = 4, ///< The cover for the HighVariable is dirty
copy_in1 = 8, ///< There exists at least 1 COPY into \b this HighVariable from other HighVariables
copy_in2 = 16 ///< There exists at least 2 COPYs into \b this HighVariable from other HighVariables
copy_in2 = 16, ///< There exists at least 2 COPYs into \b this HighVariable from other HighVariables
type_finalized = 32 ///< Set if a final data-type is locked in and dirtying is disabled
};
private:
friend class Merge;
@ -68,6 +69,7 @@ private:
void clearCopyIns(void) const { highflags &= ~(copy_in1 | copy_in2); } ///< Clear marks indicating COPYs into \b this
bool hasCopyIn1(void) const { return ((highflags&copy_in1)!=0); } ///< Is there at least one COPY into \b this
bool hasCopyIn2(void) const { return ((highflags&copy_in2)!=0); } ///< Is there at least two COPYs into \b this
void merge(HighVariable *tv2,bool isspeculative); ///< Merge another HighVariable into \b this
public:
HighVariable(Varnode *vn); ///< Construct a HighVariable with a single member Varnode
Datatype *getType(void) const { updateType(); return type; } ///< Get the data-type
@ -90,6 +92,7 @@ public:
void coverDirty(void) const { highflags |= HighVariable::coverdirty; } ///< Mark the cover as \e dirty
void typeDirty(void) const { highflags |= HighVariable::typedirty; } ///< Mark the data-type as \e dirty
void remove(Varnode *vn); ///< Remove a member Varnode from \b this
void finalizeDatatype(Datatype *tp); ///< Set a final datatype for \b this variable
/// \brief Print details of the cover for \b this (for debug purposes)
///
@ -102,7 +105,6 @@ public:
Varnode *getInputVarnode(void) const; ///< Find (the) input member Varnode
Varnode *getTypeRepresentative(void) const; ///< Get a member Varnode with the strongest data-type
Varnode *getNameRepresentative(void) const; ///< Get a member Varnode that dictates the naming of \b this HighVariable
void merge(HighVariable *tv2,bool isspeculative); ///< Merge another HighVariable into \b this
bool isMapped(void) const { updateFlags(); return ((flags&Varnode::mapped)!=0); } ///< Return \b true if \b this is mapped
bool isPersist(void) const { updateFlags(); return ((flags&Varnode::persist)!=0); } ///< Return \b true if \b this is a global variable
bool isAddrTied(void) const { updateFlags(); return ((flags&Varnode::addrtied)!=0); } ///< Return \b true if \b this is \e address \e ties