Brandon Potter has uploaded this change for review. (
https://gem5-review.googlesource.com/2267
Change subject: syscall-emul: Adds SE mode signal feature
......................................................................
syscall-emul: Adds SE mode signal feature
This changeset adds a simple class definition and a member
in the System object to track signals sent between processes.
The implementation cannot support all signals that might be
sent between processes, but it can support some of the simple
use cases like SIGCHLD.
Change-Id: Id5f95aa60e7f49da1c5b5596fbfa26e729453ac7
---
M src/sim/SConscript
A src/sim/se_signal.cc
A src/sim/se_signal.hh
M src/sim/system.hh
4 files changed, 105 insertions(+), 0 deletions(-)
diff --git a/src/sim/SConscript b/src/sim/SConscript
index c36b33b..a3d5464 100644
--- a/src/sim/SConscript
+++ b/src/sim/SConscript
@@ -66,6 +66,7 @@
Source('stat_register.cc', skip_no_python=True)
Source('clock_domain.cc')
Source('voltage_domain.cc')
+Source('se_signal.cc')
Source('linear_solver.cc')
Source('system.cc')
Source('dvfs_handler.cc')
diff --git a/src/sim/se_signal.cc b/src/sim/se_signal.cc
new file mode 100644
index 0000000..de62208
--- /dev/null
+++ b/src/sim/se_signal.cc
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * For use for simulation and test purposes only
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
notice,
+ * this list of conditions and the following disclaimer in the
documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Brandon Potter
+ */
+
+#include "sim/se_signal.hh"
+
+BasicSignal::BasicSignal(Process *send, Process *receive, int signal_val)
+ : sender(send),
+ receiver(receive),
+ signalValue(signal_val)
+{
+}
+
+
+BasicSignal::~BasicSignal()
+{
+}
diff --git a/src/sim/se_signal.hh b/src/sim/se_signal.hh
new file mode 100644
index 0000000..f4cca95
--- /dev/null
+++ b/src/sim/se_signal.hh
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * For use for simulation and test purposes only
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
notice,
+ * this list of conditions and the following disclaimer in the
documentation
+ * and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its
+ * contributors may be used to endorse or promote products derived from
this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Brandon Potter
+ */
+
+#ifndef __SE_SIGNAL_HH__
+#define __SE_SIGNAL_HH__
+
+class Process;
+
+class BasicSignal {
+ public:
+ Process *sender;
+ Process *receiver;
+ int signalValue;
+
+ BasicSignal(Process *sender, Process *receiver, int signal_val);
+ ~BasicSignal();
+};
+
+#endif // __SE_SIGNAL_HH__
diff --git a/src/sim/system.hh b/src/sim/system.hh
index 3954b35..7584ceb 100644
--- a/src/sim/system.hh
+++ b/src/sim/system.hh
@@ -61,6 +61,7 @@
#include "mem/port_proxy.hh"
#include "mem/physical.hh"
#include "params/System.hh"
+#include "sim/se_signal.hh"
/**
* To avoid linking errors with LTO, only include the header if we
@@ -556,6 +557,10 @@
/** Process set to track which PIDs have already been allocated */
std::set<int> PIDs;
+ // By convention, all signals are owned by the receiving process. The
+ // receiver will delete the signal upon reception.
+ std::list<BasicSignal> signalList;
+
protected:
/**
--
To view, visit https://gem5-review.googlesource.com/2267
To unsubscribe, visit https://gem5-review.googlesource.com/settings
Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Id5f95aa60e7f49da1c5b5596fbfa26e729453ac7
Gerrit-Change-Number: 2267
Gerrit-PatchSet: 1
Gerrit-Owner: Brandon Potter <brandon.pot...@amd.com>
_______________________________________________
gem5-dev mailing list
gem5-dev@gem5.org
http://m5sim.org/mailman/listinfo/gem5-dev
