DBG: Int3CoagulatorPass finished

x64_dbg_dbg/Int3CoagulatorPass.cpp

@@ -1,7 +1,9 @@
+#include "AnalysisPass.h"
 #include "Int3CoagulatorPass.h"
+#include "console.h"
 
-Int3CoagulatorPass::Int3CoagulatorPass(uint VirtualStart, uint VirtualEnd)
-    : AnalysisPass(VirtualStart, VirtualEnd)
+Int3CoagulatorPass::Int3CoagulatorPass(uint VirtualStart, uint VirtualEnd, BBlockArray & MainBlocks)
+    : AnalysisPass(VirtualStart, VirtualEnd, MainBlocks)
 {
 }
 
@@ -9,7 +11,66 @@ Int3CoagulatorPass::~Int3CoagulatorPass()
 {
 }
 
+const char* Int3CoagulatorPass::GetName()
+{
+    return "INT3 Group Combiner";
+}
+
 bool Int3CoagulatorPass::Analyse()
 {
-    return false;
+    // Execute
+    std::thread thread(&Int3CoagulatorPass::AnalysisWorker, this, 0, m_MainBlocks.size(), &m_MainBlocks);
+
+    // Wait for thread to finish
+    thread.join();
+
+    dprintf("Total basic blocks: %d\n", m_MainBlocks.size());
+    return true;
+}
+
+void Int3CoagulatorPass::AnalysisWorker(uint Start, uint End, std::vector<BasicBlock>* Blocks)
+{
+    int counterIndex = 0;       // Loop counter
+
+    uint intSeriesStart = 0;    // Block starting address
+    uint intSeriesCount = 0;    // Number of blocks
+    uint intSeriesSize = 0;     // Size of instructions
+
+    for(auto itr = Blocks->begin(); counterIndex < End; itr++, counterIndex++)
+    {
+        if(!itr->GetFlag(BASIC_BLOCK_FLAG_INT3))
+        {
+            // Synchronize the vector if more than 1 instruction
+            // is present. (Combine)
+            if(intSeriesCount > 1)
+            {
+                // Removal of old blocks
+                itr = Blocks->erase(itr - intSeriesCount, itr);
+
+                // Build the new block and insert
+                BasicBlock block;
+                block.VirtualStart = intSeriesStart;
+                block.VirtualEnd = intSeriesStart + intSeriesSize;
+                block.SetFlag(BASIC_BLOCK_FLAG_INT3);
+
+                itr = Blocks->insert(itr, block);
+
+                // Adjust the integer counter manually
+                End -= (intSeriesCount - 1);
+            }
+
+            // Counter is reset because the series is broken
+            intSeriesCount = 0;
+            intSeriesSize = 0;
+            continue;
+        }
+
+        // Hit! An INT3 instruction block has been found.
+        // Update the counter stats.
+        if(intSeriesCount == 0)
+            intSeriesStart = itr->VirtualStart;
+
+        intSeriesCount += 1;
+        intSeriesSize += (itr->VirtualEnd - itr->VirtualStart);
+    }
 }