From f1a7e0d3b3dcd04d8bde65ebb7f22b5bc6f98747 Mon Sep 17 00:00:00 2001
From: Korey Sewell <ksewell@umich.edu>
Date: Fri, 14 Jul 2006 04:52:08 -0400
Subject: [PATCH] MIPS specific fixes ... the main thing is that SMT threads
 get their own stack space instead of all stacks start to space

src/arch/mips/isa_traits.hh:
    MaxAddr is defined in config.py now
src/arch/mips/process.cc:
    adjust process so SMT threads get their own stack space
src/arch/mips/process.hh:
    add stack_start static variable

--HG--
extra : convert_revision : 73fdf3da9831d86536651835d209806c7f0d59da
---
 src/arch/mips/isa_traits.hh | 2 +-
 src/arch/mips/process.cc    | 5 ++++-
 src/arch/mips/process.hh    | 3 +++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/arch/mips/isa_traits.hh b/src/arch/mips/isa_traits.hh
index ff994bef9..2f485c7fd 100644
--- a/src/arch/mips/isa_traits.hh
+++ b/src/arch/mips/isa_traits.hh
@@ -129,7 +129,7 @@ namespace MipsISA
     template <class TC>
     void zeroRegisters(TC *tc);
 
-    const Addr MaxAddr = (Addr)-1;
+//    const Addr MaxAddr = (Addr)-1;
 
     void copyRegs(ThreadContext *src, ThreadContext *dest);
 
diff --git a/src/arch/mips/process.cc b/src/arch/mips/process.cc
index 031c2030e..cb847fe04 100644
--- a/src/arch/mips/process.cc
+++ b/src/arch/mips/process.cc
@@ -41,6 +41,8 @@
 using namespace std;
 using namespace MipsISA;
 
+Addr MipsLiveProcess::stack_start = 0x7FFFFFFF;
+
 MipsLiveProcess::MipsLiveProcess(const std::string &nm, ObjectFile *objFile,
         System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
         std::vector<std::string> &argv, std::vector<std::string> &envp)
@@ -49,10 +51,11 @@ MipsLiveProcess::MipsLiveProcess(const std::string &nm, ObjectFile *objFile,
 {
     // Set up stack. On MIPS, stack starts at the top of kuseg
     // user address space. MIPS stack grows down from here
-    stack_base = 0x7FFFFFFF;
+    stack_base = stack_start;
 
     // Set pointer for next thread stack.  Reserve 8M for main stack.
     next_thread_stack_base = stack_base - (8 * 1024 * 1024);
+    stack_start = next_thread_stack_base;
 
     // Set up break point (Top of Heap)
     brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
diff --git a/src/arch/mips/process.hh b/src/arch/mips/process.hh
index b0ef20399..4baee134b 100644
--- a/src/arch/mips/process.hh
+++ b/src/arch/mips/process.hh
@@ -50,6 +50,9 @@ class MipsLiveProcess : public LiveProcess
                 std::vector<std::string> &envp);
 
     void startup();
+
+
+    static Addr stack_start;
 };