DBG: improved symcache

src/dbg/symcache.cpp

@@ -2,16 +2,22 @@
 #include "addrinfo.h"
 #include "threading.h"
 
-static std::map<Range, SymbolInfo, RangeCompare> symbolRange;
+template<typename T>
+using RangeMap = std::map<Range, T, RangeCompare>;
+
+static RangeMap<RangeMap<SymbolInfo>> symbolRange;
 static std::unordered_map<duint, duint> symbolName;
 
 bool SymbolFromAddr(duint addr, SymbolInfo & symbol)
 {
     SHARED_ACQUIRE(LockSymbolCache);
-    auto found = symbolRange.find(Range(addr, addr));
-    if(found == symbolRange.end())
+    auto foundR = symbolRange.find(Range(addr, addr));
+    if(foundR == symbolRange.end())
         return false;
-    symbol = found->second;
+    auto foundS = foundR->second.find(Range(addr, addr));
+    if(foundS == foundR->second.end())
+        return false;
+    symbol = foundS->second;
     return true;
 }
 
@@ -30,30 +36,52 @@ bool SymbolFromName(const char* name, SymbolInfo & symbol)
 bool SymbolAdd(const SymbolInfo & symbol)
 {
     EXCLUSIVE_ACQUIRE(LockSymbolCache);
-    auto found = symbolRange.find(Range(symbol.addr, symbol.addr));
-    if(found != symbolRange.end())
+    auto foundR = symbolRange.find(Range(symbol.addr, symbol.addr));
+    if(foundR != symbolRange.end())
+        return false;
+    auto foundS = foundR->second.find(Range(symbol.addr, symbol.addr));
+    if(foundS != foundR->second.end())
         return false;
     auto dec = symbol.size ? 1 : 0;
-    symbolRange.insert({ Range(symbol.addr, symbol.addr + symbol.size - dec), symbol });
+    foundR->second.insert({ Range(symbol.addr, symbol.addr + symbol.size - dec), symbol });
     auto hash = ModHashFromName(symbol.decoratedName.c_str());
     symbolName.insert({ hash, symbol.addr });
     return true;
 }
 
-void SymbolDelRange(duint start, duint end)
+bool SymbolAddRange(duint start, duint size)
 {
+    EXCLUSIVE_ACQUIRE(LockSymbolCache);
+    auto foundR = symbolRange.find(Range(start, start + size - 1));
+    if(foundR != symbolRange.end())
+        return false;
+    symbolRange.insert({ Range(start, start + size - 1), RangeMap<SymbolInfo>() });
+    return true;
 }
 
-static std::map<Range, LineInfo, RangeCompare> lineRange;
+bool SymbolDelRange(duint addr)
+{
+    EXCLUSIVE_ACQUIRE(LockSymbolCache);
+    auto foundR = symbolRange.find(Range(addr, addr));
+    if(foundR == symbolRange.end())
+        return false;
+    symbolRange.erase(foundR);
+    return true;
+}
+
+static RangeMap<RangeMap<LineInfo>> lineRange;
 static std::unordered_map<duint, duint> lineName;
 
 bool LineFromAddr(duint addr, LineInfo & line)
 {
     SHARED_ACQUIRE(LockLineCache);
-    auto found = lineRange.find(Range(addr, addr));
-    if(found == lineRange.end())
+    auto foundR = lineRange.find(Range(addr, addr));
+    if(foundR == lineRange.end())
         return false;
-    line = found->second;
+    auto foundL = foundR->second.find(Range(addr, addr));
+    if(foundL == foundR->second.end())
+        return false;
+    line = foundL->second;
     return true;
 }
 
@@ -72,16 +100,35 @@ bool LineFromName(const char* sourceFile, int lineNumber, LineInfo & line)
 bool LineAdd(const LineInfo & line)
 {
     EXCLUSIVE_ACQUIRE(LockLineCache);
-    auto found = lineRange.find(Range(line.addr, line.addr));
-    if(found != lineRange.end())
+    auto foundR = lineRange.find(Range(line.addr, line.addr));
+    if(foundR != lineRange.end())
         return false;
-    auto dec = line.addr ? 1 : 0;
-    lineRange.insert({ Range(line.addr, line.addr + line.size - dec), line });
+    auto foundL = foundR->second.find(Range(line.addr, line.addr));
+    if(foundL != foundR->second.end())
+        return false;
+    auto dec = line.size ? 1 : 0;
+    foundR->second.insert({ Range(line.addr, line.addr + line.size - dec), line });
     auto hash = ModHashFromName(line.sourceFile.c_str()) + line.lineNumber;
     lineName.insert({ hash, line.addr });
     return true;
 }
 
-void LineDelRange(duint start, duint end)
+bool LineAddRange(duint start, duint size)
 {
+    EXCLUSIVE_ACQUIRE(LockLineCache);
+    auto foundR = lineRange.find(Range(start, start + size - 1));
+    if(foundR != lineRange.end())
+        return false;
+    lineRange.insert({ Range(start, start + size - 1), RangeMap<LineInfo>() });
+    return true;
+}
+
+bool LineDelRange(duint addr)
+{
+    EXCLUSIVE_ACQUIRE(LockLineCache);
+    auto foundR = lineRange.find(Range(addr, addr));
+    if(foundR == lineRange.end())
+        return false;
+    lineRange.erase(foundR);
+    return true;
 }

src/dbg/symcache.h

@@ -21,9 +21,11 @@ struct LineInfo
 bool SymbolFromAddr(duint addr, SymbolInfo & symbol);
 bool SymbolFromName(const char* name, SymbolInfo & symbol);
 bool SymbolAdd(const SymbolInfo & symbol);
-void SymbolDelRange(duint start, duint end);
+bool SymbolAddRange(duint start, duint size);
+bool SymbolDelRange(duint addr);
 
 bool LineFromAddr(duint addr, LineInfo & line);
 bool LineFromName(const char* sourceFile, int lineNumber, LineInfo & line);
 bool LineAdd(const LineInfo & line);
-void LineDelRange(duint start, duint end);
+bool LineAddRange(duint start, duint size);
+bool LineDelRange(duint addr);