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GP-4370 Internal Storage

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caheckman 2024-04-19 16:54:30 +00:00
parent f1e2c8db04
commit 05818c5c3a
17 changed files with 219 additions and 63 deletions
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8
Ghidra/Features/Decompiler/src/decompile/cpp/fspec.hh
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@ -58,6 +58,7 @@ extern ElementId ELEM_RESOLVEPROTOTYPE; ///< Marshaling element \<resolveprototy
extern ElementId ELEM_RETPARAM; ///< Marshaling element \<retparam>
extern ElementId ELEM_RETURNSYM; ///< Marshaling element \<returnsym>
extern ElementId ELEM_UNAFFECTED; ///< Marshaling element \<unaffected>
extern ElementId ELEM_INTERNAL_STORAGE; ///< Marshaling element \<internal_storage>
/// \brief Exception thrown when a prototype can't be modeled properly
struct ParamUnassignedError : public LowlevelError {
@ -749,6 +750,7 @@ class ProtoModel {
const ProtoModel *compatModel; ///< The model \b this is a copy of
vector<EffectRecord> effectlist; ///< List of side-effects
vector<VarnodeData> likelytrash; ///< Storage locations potentially carrying \e trash values
vector<VarnodeData> internalstorage; ///< Registers that hold internal compiler constants
int4 injectUponEntry; ///< Id of injection to perform at beginning of function (-1 means not used)
int4 injectUponReturn; ///< Id of injection to perform after a call to this function (-1 means not used)
RangeList localrange; ///< Memory range(s) of space-based locals
@ -834,6 +836,8 @@ public:
vector<EffectRecord>::const_iterator effectEnd(void) const { return effectlist.end(); } ///< Get an iterator to the last EffectRecord
vector<VarnodeData>::const_iterator trashBegin(void) const { return likelytrash.begin(); } ///< Get an iterator to the first \e likelytrash
vector<VarnodeData>::const_iterator trashEnd(void) const { return likelytrash.end(); } ///< Get an iterator to the last \e likelytrash
vector<VarnodeData>::const_iterator internalBegin(void) const { return internalstorage.begin(); } ///< Get an iterator to the first \e internalstorage
vector<VarnodeData>::const_iterator internalEnd(void) const { return internalstorage.end(); } ///< Get an iterator to the last \e internalstorage
/// \brief Characterize whether the given range overlaps parameter storage
///
@ -1068,7 +1072,7 @@ public:
class ProtoModelMerged : public ProtoModel {
vector<ProtoModel *> modellist; ///< Constituent models being merged
void intersectEffects(const vector<EffectRecord> &efflist); ///< Fold EffectRecords into \b this model
void intersectLikelyTrash(const vector<VarnodeData> &trashlist); ///< Fold \e likelytrash locations into \b this model
static void intersectRegisters(vector<VarnodeData> &regList1,const vector<VarnodeData> &regList2);
public:
ProtoModelMerged(Architecture *g) : ProtoModel(g) {} ///< Constructor
virtual ~ProtoModelMerged(void) {} ///< Destructor
@ -1539,6 +1543,8 @@ public:
vector<EffectRecord>::const_iterator effectEnd(void) const; ///< Get iterator to end of EffectRecord list
vector<VarnodeData>::const_iterator trashBegin(void) const; ///< Get iterator to front of \e likelytrash list
vector<VarnodeData>::const_iterator trashEnd(void) const; ///< Get iterator to end of \e likelytrash list
vector<VarnodeData>::const_iterator internalBegin(void) const { return model->internalBegin(); } ///< Get iterator to front of \e internalstorage list
vector<VarnodeData>::const_iterator internalEnd(void) const { return model->internalEnd(); } ///< Get iterator to end of \e internalstorage list
int4 characterizeAsInputParam(const Address &addr,int4 size) const;
int4 characterizeAsOutput(const Address &addr,int4 size) const;
bool possibleInputParam(const Address &addr,int4 size) const;