From 8da9fcdd751bcb74c17e72d7d0a6c7ccf259552c Mon Sep 17 00:00:00 2001
From: Steve Reinhardt <stever@eecs.umich.edu>
Date: Wed, 29 Oct 2003 08:50:25 -0800
Subject: [PATCH] Flesh out ExecContext serialize/unserialize (including
 RegFile). Add support for serializing enums.

arch/alpha/isa_traits.hh:
    Add serialize/unserialize functions for RegFile
    (defined in new isa_traits.cc).
cpu/exec_context.cc:
    Flesh out serialize/unserialize.
sim/serialize.hh:
    Add {UN}SERIALIZE_ENUM().

--HG--
extra : convert_revision : 9e30c7e7b3b290dc8ea0888ba3636fc93ee89052
---
 arch/alpha/isa_traits.hh |  3 +++
 cpu/exec_context.cc      | 12 ++++++++----
 sim/serialize.hh         | 10 ++++++++++
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/isa_traits.hh b/arch/alpha/isa_traits.hh
index e27841c3c..fbdcffbcf 100644
--- a/arch/alpha/isa_traits.hh
+++ b/arch/alpha/isa_traits.hh
@@ -158,6 +158,9 @@ class AlphaISA
 #endif // FULL_SYSTEM
         // Are these architectural, or just for convenience?
         uint8_t opcode, ra;		// current instruction details (for intr's)
+
+        void serialize(std::ostream &os);
+        void unserialize(const IniFile *db, const std::string &section);
     };
 
     static StaticInstPtr<AlphaISA> decodeInst(MachInst);
diff --git a/cpu/exec_context.cc b/cpu/exec_context.cc
index ed6360649..b869a8c4d 100644
--- a/cpu/exec_context.cc
+++ b/cpu/exec_context.cc
@@ -100,16 +100,20 @@ ExecContext::takeOverFrom(ExecContext *oldContext)
 void
 ExecContext::serialize(ostream &os)
 {
-    SERIALIZE_ARRAY(regs.intRegFile, NumIntRegs);
-    SERIALIZE_ARRAY(regs.floatRegFile.q, NumFloatRegs);
+    SERIALIZE_ENUM(_status);
+    regs.serialize(os);
+    // thread_num and cpu_id are deterministic from the config
+    SERIALIZE_SCALAR(func_exe_insn);
 }
 
 
 void
 ExecContext::unserialize(const IniFile *db, const std::string &section)
 {
-    UNSERIALIZE_ARRAY(regs.intRegFile, NumIntRegs);
-    UNSERIALIZE_ARRAY(regs.floatRegFile.q, NumFloatRegs);
+    UNSERIALIZE_ENUM(_status);
+    regs.unserialize(db, section);
+    // thread_num and cpu_id are deterministic from the config
+    UNSERIALIZE_SCALAR(func_exe_insn);
 }
 
 
diff --git a/sim/serialize.hh b/sim/serialize.hh
index 9c321b897..d7842b47d 100644
--- a/sim/serialize.hh
+++ b/sim/serialize.hh
@@ -66,6 +66,16 @@ void arrayParamIn(const IniFile *db, const std::string &section,
 
 #define UNSERIALIZE_SCALAR(scalar)	paramIn(db, section, #scalar, scalar)
 
+// ENUMs are like SCALARs, but we cast them to ints on the way out
+#define SERIALIZE_ENUM(scalar)		paramOut(os, #scalar, (int)scalar)
+
+#define UNSERIALIZE_ENUM(scalar)		\
+ do {						\
+    int tmp;					\
+    paramIn(db, section, #scalar, tmp);		\
+    scalar = (typeof(scalar))tmp;		\
+  } while (0)
+
 #define SERIALIZE_ARRAY(member, size)	\
         arrayParamOut(os, #member, member, size)