Created FreebsdSystem, for FreeBSD-specific tweaks.

SConscript:
    Included kern/freebsd/freebsd_system.cc

--HG--
extra : convert_revision : 4fa31602acb511b16bf371f78a8e5a8082536b88

2 files changed, 193 insertions, 0 deletions

diff --git a/kern/freebsd/freebsd_system.cc b/kern/freebsd/freebsd_system.cc
new file mode 100644
index 000000000..a22fda9dc
--- /dev/null
+++ b/kern/freebsd/freebsd_system.cc
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+/**
+ * @file
+ * Modifications for the FreeBSD kernel.  Based off of kern/linux/linux_system.cc.
+ * Currently only used to skip DELAY function. -Ben
+ *
+ */
+
+#include "base/loader/symtab.hh"
+#include "base/trace.hh"
+#include "cpu/exec_context.hh"
+#include "cpu/base.hh"
+#include "kern/freebsd/freebsd_system.hh"
+#include "kern/system_events.hh"
+#include "mem/functional/memory_control.hh"
+#include "mem/functional/physical.hh"
+#include "sim/builder.hh"
+#include "dev/platform.hh"
+#include "targetarch/isa_traits.hh"
+#include "targetarch/vtophys.hh"
+#include "sim/debug.hh"
+
+using namespace std;
+
+FreebsdSystem::FreebsdSystem(Params *p)
+    : System(p)
+{
+    Addr addr = 0;
+
+    /**
+     * Any time ide_delay_50ms, calibarte_delay or
+     * determine_cpu_caches is called just skip the
+     * function. Currently determine_cpu_caches only is used put
+     * information in proc, however if that changes in the future we
+     * will have to fill in the cache size variables appropriately.
+     */
+    skipDelayEvent = new SkipFuncEvent(&pcEventQueue, "DELAY");
+    if (kernelSymtab->findAddress("DELAY", addr))
+        skipDelayEvent->schedule(addr+sizeof(MachInst));
+}
+
+FreebsdSystem::~FreebsdSystem()
+{
+    delete skipDelayEvent;
+}
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(FreebsdSystem)
+
+    Param<Tick> boot_cpu_frequency;
+    SimObjectParam<MemoryController *> memctrl;
+    SimObjectParam<PhysicalMemory *> physmem;
+
+    Param<string> kernel;
+    Param<string> console;
+    Param<string> pal;
+
+    Param<string> boot_osflags;
+    Param<string> readfile;
+    Param<unsigned int> init_param;
+
+    Param<uint64_t> system_type;
+    Param<uint64_t> system_rev;
+
+    Param<bool> bin;
+    VectorParam<string> binned_fns;
+    Param<bool> bin_int;
+
+END_DECLARE_SIM_OBJECT_PARAMS(FreebsdSystem)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(FreebsdSystem)
+
+    INIT_PARAM(boot_cpu_frequency, "Frequency of the boot CPU"),
+    INIT_PARAM(memctrl, "memory controller"),
+    INIT_PARAM(physmem, "phsyical memory"),
+    INIT_PARAM(kernel, "file that contains the kernel code"),
+    INIT_PARAM(console, "file that contains the console code"),
+    INIT_PARAM(pal, "file that contains palcode"),
+    INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
+                    "a"),
+    INIT_PARAM_DFLT(readfile, "file to read startup script from", ""),
+    INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
+    INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34),
+    INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10),
+    INIT_PARAM_DFLT(bin, "is this system to be binned", false),
+    INIT_PARAM(binned_fns, "functions to be broken down and binned"),
+    INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", true)
+
+END_INIT_SIM_OBJECT_PARAMS(FreebsdSystem)
+
+CREATE_SIM_OBJECT(FreebsdSystem)
+{
+    System::Params *p = new System::Params;
+    p->name = getInstanceName();
+    p->boot_cpu_frequency = boot_cpu_frequency;
+    p->memctrl = memctrl;
+    p->physmem = physmem;
+    p->kernel_path = kernel;
+    p->console_path = console;
+    p->palcode = pal;
+    p->boot_osflags = boot_osflags;
+    p->init_param = init_param;
+    p->readfile = readfile;
+    p->system_type = system_type;
+    p->system_rev = system_rev;
+    p->bin = bin;
+    p->binned_fns = binned_fns;
+    p->bin_int = bin_int;
+    return new FreebsdSystem(p);
+}
+
+REGISTER_SIM_OBJECT("FreebsdSystem", FreebsdSystem)
+
diff --git a/kern/freebsd/freebsd_system.hh b/kern/freebsd/freebsd_system.hh
new file mode 100644
index 000000000..8caa81cbc
--- /dev/null
+++ b/kern/freebsd/freebsd_system.hh
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * 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;
+ * neither the name of the copyright holders 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
+ * OWNER 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.
+ */
+
+#ifndef __KERN_FREEBSD_FREEBSD_SYSTEM_HH__
+#define __KERN_FREEBSD_FREEBSD_SYSTEM_HH__
+
+#include "sim/host.hh"
+#include "sim/system.hh"
+#include "targetarch/isa_traits.hh"
+
+
+/**
+ * This class skips a lengthy function in the FreeBSD kernel.
+ */
+class FreebsdSystem : public System
+{
+  private:
+
+    /** PC based event to skip the DELAY call */
+    SkipFuncEvent *skipDelayEvent;
+
+  public:
+    FreebsdSystem(Params *p);
+    ~FreebsdSystem();
+
+};
+
+#endif // __KERN_LINUX_LINUX_SYSTEM_HH__