3 files changed, 63 insertions, 6 deletions

diff --git a/base/loader/symtab.cc b/base/loader/symtab.cc
index e4590ac62..25f54f9bf 100644
--- a/base/loader/symtab.cc
+++ b/base/loader/symtab.cc
@@ -31,18 +31,29 @@
 #include <string>
 #include <vector>
 
-#include "sim/host.hh"
+#include "base/loader/symtab.hh"
 #include "base/misc.hh"
 #include "base/str.hh"
-#include "base/loader/symtab.hh"
+#include "sim/host.hh"
+#include "sim/serialize.hh"
 
 using namespace std;
 
 SymbolTable *debugSymbolTable = NULL;
 
+void
+SymbolTable::clear()
+{
+    addrTable.clear();
+    symbolTable.clear();
+}
+
 bool
 SymbolTable::insert(Addr address, string symbol)
 {
+    if (symbol.empty())
+        return false;
+
     if (!addrTable.insert(make_pair(address, symbol)).second)
         return false;
 
@@ -59,10 +70,8 @@ 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");
-    }
+    if (!file)
+        fatal("file error: Can't open symbol table file %s\n", filename);
 
     while (!file.eof()) {
         getline(file, buffer);
@@ -95,3 +104,34 @@ SymbolTable::load(const string &filename)
 
     return true;
 }
+
+void
+SymbolTable::serialize(const string &base, ostream &os)
+{
+    paramOut(os, base + ".size", addrTable.size());
+
+    int i = 0;
+    ATable::const_iterator p, end = addrTable.end();
+    for (p = addrTable.begin(); p != end; ++p) {
+        paramOut(os, csprintf("%s.addr_%d", base, i), p->first);
+        paramOut(os, csprintf("%s.symbol_%d", base, i), p->second);
+        ++i;
+    }
+}
+
+void
+SymbolTable::unserialize(const string &base, Checkpoint *cp,
+                         const string &section)
+{
+    clear();
+    int size;
+    paramIn(cp, section, base + ".size", size);
+    for (int i = 0; i < size; ++i) {
+        Addr addr;
+        std::string symbol;
+
+        paramIn(cp, section, csprintf("%s.addr_%d", base, i), addr);
+        paramIn(cp, section, csprintf("%s.symbol_%d", base, i), symbol);
+        insert(addr, symbol);
+    }
+}
diff --git a/base/loader/symtab.hh b/base/loader/symtab.hh
index dce3c978e..324fd8b45 100644
--- a/base/loader/symtab.hh
+++ b/base/loader/symtab.hh
@@ -29,9 +29,12 @@
 #ifndef __SYMTAB_HH__
 #define __SYMTAB_HH__
 
+#include <iosfwd>
 #include <map>
+
 #include "targetarch/isa_traits.hh"	// for Addr
 
+class Checkpoint;
 class SymbolTable
 {
   public:
@@ -61,6 +64,7 @@ class SymbolTable
     SymbolTable(const std::string &file) { load(file); }
     ~SymbolTable() {}
 
+    void clear();
     bool insert(Addr address, std::string symbol);
     bool load(const std::string &file);
 
@@ -68,6 +72,11 @@ class SymbolTable
     const STable &getSymbolTable() const { return symbolTable; }
 
   public:
+    void serialize(const std::string &base, std::ostream &os);
+    void unserialize(const std::string &base, Checkpoint *cp,
+                     const std::string &section);
+
+  public:
     bool
     findSymbol(Addr address, std::string &symbol) const
     {
diff --git a/sim/system.cc b/sim/system.cc
index e67cae333..c91d7f142 100644
--- a/sim/system.cc
+++ b/sim/system.cc
@@ -333,6 +333,10 @@ void
 System::serialize(ostream &os)
 {
     kernelBinning->serialize(os);
+
+    kernelSymtab->serialize("kernel_symtab", os);
+    consoleSymtab->serialize("console_symtab", os);
+    palSymtab->serialize("pal_symtab", os);
 }
 
 
@@ -340,6 +344,10 @@ void
 System::unserialize(Checkpoint *cp, const string &section)
 {
     kernelBinning->unserialize(cp, section);
+
+    kernelSymtab->unserialize("kernel_symtab", cp, section);
+    consoleSymtab->unserialize("console_symtab", cp, section);
+    palSymtab->unserialize("pal_symtab", cp, section);
 }
 
 void