1 files changed, 133 insertions, 0 deletions
diff --git a/base/symtab.cc b/base/symtab.cc
new file mode 100644
index 000000000..7beee182b
--- /dev/null
+++ b/base/symtab.cc
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <vector>
+
+#include "host.hh"
+#include "misc.hh"
+#include "str.hh"
+#include "symtab.hh"
+
+using namespace std;
+
+bool
+SymbolTable::insert(Addr address, string symbol)
+{
+    if (!addrTable.insert(make_pair(address, symbol)).second)
+        return false;
+
+    if (!symbolTable.insert(make_pair(symbol, address)).second)
+        return false;
+
+    return true;
+}
+
+
+bool
+SymbolTable::load(const string &filename)
+{
+    string buffer;
+    ifstream file(filename.c_str());
+
+    if (!file) {
+        cerr << "Can't open symbol table file " << filename << endl;
+        fatal("file error");
+    }
+
+    while (!file.eof()) {
+        getline(file, buffer);
+        if (buffer.empty())
+            continue;
+
+        int idx = buffer.find(',');
+        if (idx == string::npos)
+            return false;
+
+        string address = buffer.substr(0, idx);
+        eat_white(address);
+        if (address.empty())
+            return false;
+
+        string symbol = buffer.substr(idx + 1);
+        eat_white(symbol);
+        if (symbol.empty())
+            return false;
+
+        Addr addr;
+        if (!to_number(address, addr))
+            return false;
+
+        if (!insert(addr, symbol))
+            return false;
+    }
+
+    file.close();
+
+    return true;
+}
+
+bool
+SymbolTable::findSymbol(Addr address, string &symbol) const
+{
+    ATable::const_iterator i = addrTable.find(address);
+    if (i == addrTable.end())
+        return false;
+
+    symbol = (*i).second;
+    return true;
+}
+
+bool
+SymbolTable::findAddress(const string &symbol, Addr &address) const
+{
+    STable::const_iterator i = symbolTable.find(symbol);
+    if (i == symbolTable.end())
+        return false;
+
+    address = (*i).second;
+    return true;
+}
+
+string
+SymbolTable::find(Addr addr) const
+{
+    string s;
+    findSymbol(addr, s);
+    return s;
+}
+
+Addr
+SymbolTable::find(const string &symbol) const
+{
+    Addr a = 0;
+    findAddress(symbol, a);
+    return a;
+}