From 232134a8169e35931a34140c57dc7a8dfb4b1546 Mon Sep 17 00:00:00 2001
From: Ali Saidi <saidi@eecs.umich.edu>
Date: Wed, 9 Mar 2005 15:52:10 -0500
Subject: Changed all syscalls to use syscall return object.

arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_tru64_process.cc:
cpu/exec_context.hh:
sim/process.hh:
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    Changed all syscalls to use syscall return object
arch/alpha/isa_traits.hh:
    Added syscall return object that packages return value and return
    status into an object.
sim/process.cc:
    renamed variable name to nm so base class function name() can be called

--HG--
extra : convert_revision : 6609c5ffecc9e3519d7a0cd160879fd21d54abfc
---
 arch/alpha/isa_traits.hh | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'arch/alpha/isa_traits.hh')

diff --git a/arch/alpha/isa_traits.hh b/arch/alpha/isa_traits.hh
index 8db8c6994..3208b0cb3 100644
--- a/arch/alpha/isa_traits.hh
+++ b/arch/alpha/isa_traits.hh
@@ -286,6 +286,43 @@ const int ArgumentReg1 = TheISA::ArgumentReg1;
 const int BranchPredAddrShiftAmt = TheISA::BranchPredAddrShiftAmt;
 const int MaxAddr = (Addr)-1;
 
+#ifndef FULL_SYSTEM
+class SyscallReturn {
+        public:
+           template <class T>
+           SyscallReturn(T v, bool s)
+           {
+               retval = (uint64_t)v;
+               success = s;
+           }
+
+           template <class T>
+           SyscallReturn(T v)
+           {
+               success = (v >= 0);
+               retval = (uint64_t)v;
+           }
+
+           ~SyscallReturn() {}
+
+           SyscallReturn& operator=(const SyscallReturn& s) {
+               retval = s.retval;
+               success = s.success;
+               return *this;
+           }
+
+           uint64_t successful() { return success; }
+           bool value() { return retval; }
+
+
+       private:
+           uint64_t retval;
+           bool success;
+};
+
+#endif
+
+
 #ifdef FULL_SYSTEM
 typedef TheISA::InternalProcReg InternalProcReg;
 const int NumInternalProcRegs  = TheISA::NumInternalProcRegs;
-- 
cgit v1.2.3


From 9797eedeead30f93d9a34583197c4f11b341c04f Mon Sep 17 00:00:00 2001
From: Ali Saidi <saidi@eecs.umich.edu>
Date: Thu, 10 Mar 2005 02:01:43 -0500
Subject: fix typo in SyscallReturn Object

--HG--
extra : convert_revision : 97d34a02a29a9ac3e2256d92194e3a46b9e8021e
---
 arch/alpha/isa_traits.hh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/alpha/isa_traits.hh')

diff --git a/arch/alpha/isa_traits.hh b/arch/alpha/isa_traits.hh
index 3208b0cb3..d9c1a506e 100644
--- a/arch/alpha/isa_traits.hh
+++ b/arch/alpha/isa_traits.hh
@@ -311,8 +311,8 @@ class SyscallReturn {
                return *this;
            }
 
-           uint64_t successful() { return success; }
-           bool value() { return retval; }
+           bool successful() { return success; }
+           uint64_t value() { return retval; }
 
 
        private:
-- 
cgit v1.2.3