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Code Issues Releases Wiki Activity

Subvariable flow into switch

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This commit is contained in:
caheckman 2020-02-13 11:30:45 -05:00
parent e6f09b141b
commit 936f541e64
7 changed files with 164 additions and 67 deletions
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3
Ghidra/Features/Decompiler/src/decompile/cpp/subflow.hh
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@ -62,7 +62,7 @@ class SubvariableFlow {
/// \brief Operation with a new logical value as (part of) input, but output Varnode is unchanged
class PatchRecord {
friend class SubvariableFlow;
int4 type; ///< 0=COPY 1=compare 2=call 3=AND/SHIFT
int4 type; ///< 0=COPY 1=compare 2=call/return/branchind 3=AND/SHIFT
PcodeOp *pullop; ///< Op being affected
ReplaceVarnode *in1; ///< The logical variable input
ReplaceVarnode *in2; ///< (optional second parameter)
@ -91,6 +91,7 @@ class SubvariableFlow {
bool tryCallPull(PcodeOp *op,ReplaceVarnode *rvn,int4 slot);
bool tryReturnPull(PcodeOp *op,ReplaceVarnode *rvn,int4 slot);
bool tryCallReturnPull(PcodeOp *op,ReplaceVarnode *rvn);
bool trySwitchPull(PcodeOp *op,ReplaceVarnode *rvn);
bool traceForward(ReplaceVarnode *rvn); ///< Trace the logical data-flow forward for the given subgraph variable
bool traceBackward(ReplaceVarnode *rvn); ///< Trace the logical data-flow backward for the given subgraph variable
bool traceForwardSext(ReplaceVarnode *rvn); ///< Trace logical data-flow forward assuming sign-extensions