syscall_emul: [PATCH 15/22] add clone/execve for threading and multiprocess simulations

Modifies the clone system call and adds execve system call. Requires allowing
processes to steal thread contexts from other processes in the same system
object and the ability to detach pieces of process state (such as MemState)
to allow dynamic sharing.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/cpu/checker/thread_context.hh b/src/cpu/checker/thread_context.hh
index 0313d079b..7b09dde90 100644
--- a/src/cpu/checker/thread_context.hh
+++ b/src/cpu/checker/thread_context.hh
@@ -130,6 +130,8 @@ class CheckerThreadContext : public ThreadContext
 
     Process *getProcessPtr() { return actualTC->getProcessPtr(); }
 
+    void setProcessPtr(Process *p) { actualTC->setProcessPtr(p); }
+
     PortProxy &getPhysProxy() { return actualTC->getPhysProxy(); }
 
     FSTranslatingPortProxy &getVirtProxy()
@@ -254,6 +256,12 @@ class CheckerThreadContext : public ThreadContext
         return actualTC->pcState(val);
     }
 
+    void setNPC(Addr val)
+    {
+        checkerTC->setNPC(val);
+        actualTC->setNPC(val);
+    }
+
     void pcStateNoRecord(const TheISA::PCState &val)
     {
         return actualTC->pcState(val);