From 3aebb41ce0ea5b578a1ebf6810446c660066c525 Mon Sep 17 00:00:00 2001
From: Jesper Puge Nielsen <nielsen34@llnl.gov>
Date: Wed, 12 Aug 2015 21:07:52 -0700
Subject: [PATCH] =?UTF-8?q?Exposed=20stackwalker=20and=20proc=20callback=20status=20to=20DySect
=20=C3c?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 dyninstAPI/h/BPatch_process.h   |   13 +++++++++++++
 dyninstAPI/src/BPatch_process.C |   18 ++++++++++++++++++
 dyninstAPI/src/dynProcess.h     |    3 ++-
 3 files changed, 33 insertions(+), 1 deletions(-)

diff --git a/dyninstAPI/h/BPatch_process.h b/dyninstAPI/h/BPatch_process.h
index 5e01bbb..1316bb2 100644
--- a/dyninstAPI/h/BPatch_process.h
+++ b/dyninstAPI/h/BPatch_process.h
@@ -225,6 +225,10 @@ class BPATCH_DLL_EXPORT BPatch_process : public BPatch_addressSpace {
   //
   // this function should go away as soon as Paradyn links against Dyninst
   PCProcess *lowlevel_process() const { return llproc; }
+
+  // Expose walker from Dyninst proces
+  void *get_walker() const;
+
   // These internal funcs trigger callbacks registered to matching events
   bool triggerStopThread(instPoint *intPoint, func_instance *intFunc, 
 			 int cb_ID, void *retVal);
@@ -281,6 +285,15 @@ class BPATCH_DLL_EXPORT BPatch_process : public BPatch_addressSpace {
 
   bool continueExecution();
 
+  // BPatch_process::keepStopped
+  // 
+  // Changes the desired process stat to prevent
+  //  Dyninst from resuming the process after
+  //  handling the current event.
+  //  Must be called from an event handler.
+  
+  void keepStopped();
+
   //  BPatch_process::terminateExecution
   //  
   //  Terminate mutatee process
diff --git a/dyninstAPI/src/BPatch_process.C b/dyninstAPI/src/BPatch_process.C
index 115f215..809e797 100644
--- a/dyninstAPI/src/BPatch_process.C
+++ b/dyninstAPI/src/BPatch_process.C
@@ -507,6 +507,19 @@ bool BPatch_process::continueExecution()
 }
 
 /*
+ * BPatch_process::keepStopped
+ *
+ * Changes the desired process stat to prevent
+ *  Dyninst from resuming the process after
+ *  handling the current event.
+ *  Must be called from an event handler.
+ */
+void BPatch_process::keepStopped()
+{
+  llproc->setDesiredProcessState(PCProcess::ps_stopped);
+}
+
+/*
  * BPatch_process::terminateExecution
  *
  * Kill the thread.
@@ -1754,3 +1767,8 @@ bool BPatch_process::protectAnalyzedCode()
     }
     return ret;
 }
+
+void *BPatch_process::get_walker() const
+{
+    return llproc->get_walker();
+}
diff --git a/dyninstAPI/src/dynProcess.h b/dyninstAPI/src/dynProcess.h
index 54b0c6e..00721d1 100644
--- a/dyninstAPI/src/dynProcess.h
+++ b/dyninstAPI/src/dynProcess.h
@@ -302,7 +302,8 @@ public:
     // Stackwalking internals
     bool walkStack(pdvector<Frame> &stackWalk, PCThread *thread);
     bool getActiveFrame(Frame &frame, PCThread *thread);
-
+    Dyninst::Stackwalker::Walker *get_walker() { return stackwalker_; }
+    
     void addSignalHandler(Address, unsigned);
     bool isInSignalHandler(Address addr);
 
-- 
1.7.1