4 files changed, 51 insertions, 0 deletions

diff --git a/src/sim/pseudo_inst.cc b/src/sim/pseudo_inst.cc
index f3b10f6d2..bcff2f5c1 100644
--- a/src/sim/pseudo_inst.cc
+++ b/src/sim/pseudo_inst.cc
@@ -1,4 +1,16 @@
 /*
+ * Copyright (c) 2010 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder.  You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
  * Copyright (c) 2003-2006 The Regents of The University of Michigan
  * All rights reserved.
  *
@@ -86,6 +98,28 @@ quiesce(ThreadContext *tc)
 }
 
 void
+quiesceSkip(ThreadContext *tc)
+{
+    BaseCPU *cpu = tc->getCpuPtr();
+
+    if (!cpu->params()->do_quiesce)
+        return;
+
+    EndQuiesceEvent *quiesceEvent = tc->getQuiesceEvent();
+
+    Tick resume = curTick() + 1;
+
+    cpu->reschedule(quiesceEvent, resume, true);
+
+    DPRINTF(Quiesce, "%s: quiesceSkip() until %d\n",
+            cpu->name(), resume);
+
+    tc->suspend();
+    if (tc->getKernelStats())
+        tc->getKernelStats()->quiesce();
+}
+
+void
 quiesceNs(ThreadContext *tc, uint64_t ns)
 {
     BaseCPU *cpu = tc->getCpuPtr();
diff --git a/src/sim/pseudo_inst.hh b/src/sim/pseudo_inst.hh
index 296b1556b..aec3b5d8a 100644
--- a/src/sim/pseudo_inst.hh
+++ b/src/sim/pseudo_inst.hh
@@ -45,6 +45,7 @@ extern bool doQuiesce;
 #if FULL_SYSTEM
 void arm(ThreadContext *tc);
 void quiesce(ThreadContext *tc);
+void quiesceSkip(ThreadContext *tc);
 void quiesceNs(ThreadContext *tc, uint64_t ns);
 void quiesceCycles(ThreadContext *tc, uint64_t cycles);
 uint64_t quiesceTime(ThreadContext *tc);
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index e0469744e..506b22fdf 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -98,6 +98,18 @@ ignoreFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
 
 
 SyscallReturn
+ignoreWarnOnceFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
+           ThreadContext *tc)
+{
+    int index = 0;
+    warn_once("ignoring syscall %s(%d, %d, ...)", desc->name,
+         process->getSyscallArg(tc, index), process->getSyscallArg(tc, index));
+
+    return 0;
+}
+
+
+SyscallReturn
 exitFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
          ThreadContext *tc)
 {
@@ -802,6 +814,8 @@ cloneFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
 
             for (int y = 8; y < 32; y++)
                 ctc->setIntReg(y, tc->readIntReg(y));
+        #elif THE_ISA == ARM_ISA
+            TheISA::copyRegs(tc, ctc);
         #else
             fatal("sys_clone is not implemented for this ISA\n");
         #endif
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index 1dc51ad56..5091c275d 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -187,6 +187,8 @@ SyscallReturn unimplementedFunc(SyscallDesc *desc, int num,
 /// trace flag is enabled.  Return success to the target program.
 SyscallReturn ignoreFunc(SyscallDesc *desc, int num,
                          LiveProcess *p, ThreadContext *tc);
+SyscallReturn ignoreWarnOnceFunc(SyscallDesc *desc, int num,
+                         LiveProcess *p, ThreadContext *tc);
 
 /// Target exit() handler: terminate current context.
 SyscallReturn exitFunc(SyscallDesc *desc, int num,