Add support for enumerating a range of symbols

src/dbg/symbolsourcebase.h

@@ -145,7 +145,7 @@ public:
     }
 
     // only call if isOpen && !isLoading
-    virtual void enumSymbols(const CbEnumSymbol & cbEnum)
+    virtual void enumSymbols(const CbEnumSymbol & cbEnum, duint beginRva = 0, duint endRva = -1)
     {
         // Stub
     }

src/dbg/symbolsourcedia.cpp

@@ -470,14 +470,32 @@ bool SymbolSourceDIA::findSymbolExactOrLower(duint rva, SymbolInfo & symInfo)
     return false;
 }
 
-void SymbolSourceDIA::enumSymbols(const CbEnumSymbol & cbEnum)
+void SymbolSourceDIA::enumSymbols(const CbEnumSymbol & cbEnum, duint beginRva, duint endRva)
 {
     if(!_symbolsLoaded)
         return;
 
-    for(auto & it : _symAddrMap)
+    if(_symAddrMap.empty())
+        return;
+
+    if(beginRva > endRva)
+        return;
+
+    AddrIndex find;
+    find.addr = beginRva;
+    find.index = -1;
+    auto it = std::lower_bound(_symAddrMap.begin(), _symAddrMap.end(), find);
+    if(it == _symAddrMap.end())
+        return;
+
+    for(; it != _symAddrMap.end(); it++)
     {
-        const SymbolInfo & sym = _symData[it.index];
+        const SymbolInfo & sym = _symData[it->index];
+        if(sym.rva > endRva)
+        {
+            break;
+        }
+
         if(!cbEnum(sym))
         {
             break;

src/dbg/symbolsourcedia.h

@@ -116,7 +116,7 @@ public:
 
     virtual bool findSymbolExactOrLower(duint rva, SymbolInfo & symInfo) override;
 
-    virtual void enumSymbols(const CbEnumSymbol & cbEnum) override;
+    virtual void enumSymbols(const CbEnumSymbol & cbEnum, uint64_t beginRva, uint64_t endRva) override;
 
     virtual bool findSourceLineInfo(duint rva, LineInfo & lineInfo) override;