addad kern/linux

--HG--
extra : convert_revision : 2a14af3191a532524ee92a47b5bb6e68555010c3

1 files changed, 703 insertions, 0 deletions

diff --git a/kern/linux/linux_system.cc b/kern/linux/linux_system.cc
new file mode 100644
index 000000000..bdaebbe70
--- /dev/null
+++ b/kern/linux/linux_system.cc
@@ -0,0 +1,703 @@
+/*
+ * Copyright (c) 2003 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.
+ */
+
+#include "base/loader/aout_object.hh"
+#include "base/loader/elf_object.hh"
+#include "base/loader/object_file.hh"
+#include "base/loader/symtab.hh"
+#include "base/remote_gdb.hh"
+#include "base/trace.hh"
+#include "cpu/exec_context.hh"
+#include "kern/linux/linux_events.hh"
+#include "kern/linux/linux_system.hh"
+#include "mem/functional_mem/memory_control.hh"
+#include "mem/functional_mem/physical_memory.hh"
+#include "sim/builder.hh"
+#include "targetarch/isa_traits.hh"
+#include "targetarch/vtophys.hh"
+
+//un-comment this to see the state of call stack when it changes.
+//#define SW_DEBUG
+
+using namespace std;
+
+LinuxSystem::LinuxSystem(const string _name, const uint64_t _init_param,
+                         MemoryController *_memCtrl, PhysicalMemory *_physmem,
+                         const string &kernel_path, const string &console_path,
+                         const string &palcode, const string &boot_osflags,
+                         const string &bootloader_path, const bool _bin)
+     : System(_name, _init_param, _memCtrl, _physmem, _bin), bin(_bin)
+{
+    kernelSymtab = new SymbolTable;
+    consoleSymtab = new SymbolTable;
+    bootloaderSymtab = new SymbolTable;
+
+    ObjectFile *kernel = createObjectFile(kernel_path);
+    if (kernel == NULL)
+        fatal("Could not load kernel file %s", kernel_path);
+
+    ObjectFile *console = createObjectFile(console_path);
+    if (console == NULL)
+        fatal("Could not load console file %s", console_path);
+
+    ObjectFile *bootloader = createObjectFile(bootloader_path);
+    if (bootloader == NULL)
+        fatal("Could not load bootloader file %s", bootloader_path);
+
+    if (!kernel->loadGlobalSymbols(kernelSymtab))
+        panic("could not load kernel symbols\n");
+
+    if (!console->loadGlobalSymbols(consoleSymtab))
+        panic("could not load console symbols\n");
+
+    if (!bootloader->loadGlobalSymbols(bootloaderSymtab))
+        panic("could not load bootloader symbols\n");
+
+    // Load pal file
+    ObjectFile *pal = createObjectFile(palcode);
+    if (pal == NULL)
+        fatal("Could not load PALcode file %s", palcode);
+    pal->loadSections(physmem, true);
+
+    // Load console file
+    console->loadSections(physmem, true);
+
+    // Load kernel file
+    kernel->loadSections(physmem, true);
+    kernelStart = kernel->textBase();
+    kernelEnd = kernel->bssBase() + kernel->bssSize();
+    /* FIXME: entrypoint not in kernel, but in bootloader,
+       variable should be re-named appropriately */
+    kernelEntry = kernel->entryPoint();
+
+
+    DPRINTF(Loader, "Kernel start = %#x\n"
+            "Kernel end   = %#x\n"
+            "Kernel entry = %#x\n",
+            kernelStart, kernelEnd, kernelEntry);
+
+    DPRINTF(Loader, "Kernel loaded...\n");
+
+    // Load bootloader file
+    bootloader->loadSections(physmem, true);
+    kernelEntry = bootloader->entryPoint();
+    kernelStart = bootloader->textBase();
+    DPRINTF(Loader, "Bootloader entry at %#x\n", kernelEntry);
+
+#ifdef FS_MEASURE
+    //INSTRUMENTATION CODEGEN BEGIN ONE
+    if (bin == true) {
+        esIntrBin = new Statistics::MainBin(name() + " es_intr");
+        fnBins.insert(make_pair("es_intr", esIntrBin));
+
+        esRxeofBin = new Statistics::MainBin(name() + " es_rxeof");
+        fnBins.insert(make_pair("es_rxeof", esRxeofBin));
+
+        esNewbufBin = new Statistics::MainBin(name() + " es_newbuf");
+        fnBins.insert(make_pair("es_newbuf", esNewbufBin));
+
+        esDmaLoadBin = new Statistics::MainBin(name() + " es_dma_load");
+        fnBins.insert(make_pair("es_dma_load", esDmaLoadBin));
+
+        dmaMapLoadBin = new Statistics::MainBin(name() + " dma_map_load");
+        fnBins.insert(make_pair("dma_map_load", dmaMapLoadBin));
+
+        etherInputBin = new Statistics::MainBin(name() + " ether_input");
+        fnBins.insert(make_pair("ether_input", etherInputBin));
+
+        netisrInputBin = new Statistics::MainBin(name() + " netisr_input");
+        fnBins.insert(make_pair("netisr_input", netisrInputBin));
+
+        schednetisrIsrBin = new Statistics::MainBin(name() + " schednetisr_isr");
+        fnBins.insert(make_pair("schednetisr_isr", schednetisrIsrBin));
+
+        ipintrBin = new Statistics::MainBin(name() + " ipintr");
+        fnBins.insert(make_pair("ipintr", ipintrBin));
+
+        ipDooptionsBin = new Statistics::MainBin(name() + " ip_dooptions");
+        fnBins.insert(make_pair("ip_dooptions", ipDooptionsBin));
+
+        ipReassBin = new Statistics::MainBin(name() + " ip_reass");
+        fnBins.insert(make_pair("ip_reass", ipReassBin));
+
+        tcpInputBin = new Statistics::MainBin(name() + " tcp_input");
+        fnBins.insert(make_pair("tcp_input", tcpInputBin));
+
+        sbappendBin = new Statistics::MainBin(name() + " sbappend");
+        fnBins.insert(make_pair("sbappend", sbappendBin));
+
+        readBin = new Statistics::MainBin(name() + " read");
+        fnBins.insert(make_pair("read", readBin));
+
+        sooReadBin = new Statistics::MainBin(name() + " soo_read");
+        fnBins.insert(make_pair("soo_read", sooReadBin));
+
+        orecvBin = new Statistics::MainBin(name() + " orecv");
+        fnBins.insert(make_pair("orecv", orecvBin));
+
+        recvitBin = new Statistics::MainBin(name() + " recvit");
+        fnBins.insert(make_pair("recvit", recvitBin));
+
+        soreceiveBin = new Statistics::MainBin(name() + " soreceive");
+        fnBins.insert(make_pair("soreceive", soreceiveBin));
+
+        osendBin = new Statistics::MainBin(name() + " osend");
+        fnBins.insert(make_pair("osend", osendBin));
+
+        writeBin = new Statistics::MainBin(name() + " write");
+        fnBins.insert(make_pair("write", writeBin));
+
+        sooWriteBin = new Statistics::MainBin(name() + " soo_write");
+        fnBins.insert(make_pair("soo_write", sooWriteBin));
+
+        senditBin = new Statistics::MainBin(name() + " sendit");
+        fnBins.insert(make_pair("sendit", senditBin));
+
+        sosendBin = new Statistics::MainBin(name() + " sosend");
+        fnBins.insert(make_pair("sosend", sosendBin));
+
+        tcpSosendBin = new Statistics::MainBin(name() + " tcp_sosend");
+        fnBins.insert(make_pair("tcp_sosend", tcpSosendBin));
+
+        tcpOutputBin = new Statistics::MainBin(name() + " tcp_output");
+        fnBins.insert(make_pair("tcp_output", tcpOutputBin));
+
+        ipOutputBin = new Statistics::MainBin(name() + " ip_output");
+        fnBins.insert(make_pair("ip_output", ipOutputBin));
+
+        etherOutputBin = new Statistics::MainBin(name() + " ether_output");
+        fnBins.insert(make_pair("ether_output", etherOutputBin));
+
+        esStartBin = new Statistics::MainBin(name() + " es_start");
+        fnBins.insert(make_pair("es_start", esStartBin));
+
+        esTransmitBin = new Statistics::MainBin(name() + " es_transmit");
+        fnBins.insert(make_pair("es_transmit", esTransmitBin));
+
+        esTxeofBin = new Statistics::MainBin(name() + " es_txeof");
+        fnBins.insert(make_pair("es_txeof", esTxeofBin));
+
+        idleThreadBin = new Statistics::MainBin(name() + " idle_thread");
+        fnBins.insert(make_pair("idle_thread", idleThreadBin));
+
+    }
+    //INSTRUMENTATION CODEGEN END
+#endif //FS_MEASURE
+
+    kernelPanicEvent = new BreakPCEvent(&pcEventQueue, "kernel panic");
+    consolePanicEvent = new BreakPCEvent(&pcEventQueue, "console panic");
+    badaddrEvent = new LinuxBadAddrEvent(&pcEventQueue, "badaddr");
+    skipPowerStateEvent = new LinuxSkipFuncEvent(&pcEventQueue,
+                                            "tl_v48_capture_power_state");
+    skipScavengeBootEvent = new LinuxSkipFuncEvent(&pcEventQueue,
+                                              "pmap_scavenge_boot");
+    printfEvent = new LinuxPrintfEvent(&pcEventQueue, "printf");
+   /* debugPrintfEvent = new DebugPrintfEvent(&pcEventQueue,
+                                            "debug_printf", false);
+    debugPrintfrEvent = new DebugPrintfEvent(&pcEventQueue,
+                                             "debug_printfr", true);
+    dumpMbufEvent = new DumpMbufEvent(&pcEventQueue, "dump_mbuf");
+*/
+#ifdef FS_MEASURE
+    //INSTRUMENTATION CODEGEN BEGIN TWO
+    if (bin == true) {
+          esIntrEvent = new FnEvent(&pcEventQueue, "es_intr", this);
+          esRxeofEvent = new FnEvent(&pcEventQueue, "es_rxeof", this);
+          esNewbufEvent = new FnEvent(&pcEventQueue, "es_newbuf", this);
+          esDmaLoadEvent = new FnEvent(&pcEventQueue, "es_dma_load", this);
+          dmaMapLoadEvent = new FnEvent(&pcEventQueue, "dma_map_load", this);
+          etherInputEvent = new FnEvent(&pcEventQueue, "ether_input", this);
+          netisrInputEvent = new FnEvent(&pcEventQueue, "netisr_input", this);
+          schednetisrIsrEvent = new FnEvent(&pcEventQueue, "schednetisr_isr", this);
+          ipintrEvent = new FnEvent(&pcEventQueue, "ipintr", this);
+          ipDooptionsEvent = new FnEvent(&pcEventQueue, "ip_dooptions", this);
+          ipReassEvent = new FnEvent(&pcEventQueue, "ip_reass", this);
+          tcpInputEvent = new FnEvent(&pcEventQueue, "tcp_input", this);
+          sbappendEvent = new FnEvent(&pcEventQueue, "sbappend", this);
+          readEvent = new FnEvent(&pcEventQueue, "read", this);
+          sooReadEvent = new FnEvent(&pcEventQueue, "soo_read", this);
+          orecvEvent = new FnEvent(&pcEventQueue, "orecv", this);
+          recvitEvent = new FnEvent(&pcEventQueue, "recvit", this);
+          soreceiveEvent = new FnEvent(&pcEventQueue, "soreceive", this);
+          osendEvent = new FnEvent(&pcEventQueue, "osend", this);
+          writeEvent = new FnEvent(&pcEventQueue, "write", this);
+          sooWriteEvent = new FnEvent(&pcEventQueue, "soo_write", this);
+          senditEvent = new FnEvent(&pcEventQueue, "sendit", this);
+          sosendEvent = new FnEvent(&pcEventQueue, "sosend", this);
+          tcpSosendEvent = new FnEvent(&pcEventQueue, "tcp_sosend", this);
+          tcpOutputEvent = new FnEvent(&pcEventQueue, "tcp_output", this);
+          ipOutputEvent = new FnEvent(&pcEventQueue, "ip_output", this);
+          etherOutputEvent = new FnEvent(&pcEventQueue, "ether_output", this);
+          esStartEvent = new FnEvent(&pcEventQueue, "es_start", this);
+          esTransmitEvent = new FnEvent(&pcEventQueue, "es_transmit", this);
+          esTxeofEvent = new FnEvent(&pcEventQueue, "es_txeof", this);
+          idleThreadEvent = new FnEvent(&pcEventQueue, "idle_thread", this);
+    }
+    //INSTRUMENTATION CODEGEN END
+#endif //FS_MEASURE
+
+    Addr addr = 0;
+    if (kernelSymtab->findAddress("enable_async_printf", addr)) {
+        Addr paddr = vtophys(physmem, addr);
+        uint8_t *enable_async_printf =
+            physmem->dma_addr(paddr, sizeof(uint32_t));
+
+        if (enable_async_printf)
+            *(uint32_t *)enable_async_printf = 0;
+    }
+
+    if (consoleSymtab->findAddress("env_booted_osflags", addr)) {
+        Addr paddr = vtophys(physmem, addr);
+        char *osflags = (char *)physmem->dma_addr(paddr, sizeof(uint32_t));
+
+        if (osflags)
+            strcpy(osflags, boot_osflags.c_str());
+    }
+
+    if (kernelSymtab->findAddress("panic", addr))
+        kernelPanicEvent->schedule(addr);
+    else
+        panic("could not find kernel symbol \'panic\'");
+
+    if (consoleSymtab->findAddress("panic", addr))
+        consolePanicEvent->schedule(addr);
+
+    if (kernelSymtab->findAddress("badaddr", addr))
+        badaddrEvent->schedule(addr);
+   // else
+        //panic("could not find kernel symbol \'badaddr\'");
+
+    if (kernelSymtab->findAddress("tl_v48_capture_power_state", addr))
+        skipPowerStateEvent->schedule(addr);
+
+    if (kernelSymtab->findAddress("pmap_scavenge_boot", addr))
+        skipScavengeBootEvent->schedule(addr);
+
+#if TRACING_ON
+    if (kernelSymtab->findAddress("printk", addr))
+        printfEvent->schedule(addr);
+
+    if (kernelSymtab->findAddress("m5printf", addr))
+        debugPrintfEvent->schedule(addr);
+
+    if (kernelSymtab->findAddress("m5printfr", addr))
+        debugPrintfrEvent->schedule(addr);
+
+    if (kernelSymtab->findAddress("m5_dump_mbuf", addr))
+        dumpMbufEvent->schedule(addr);
+#endif
+
+#ifdef FS_MEASURE
+    //INSTRUMENTATION CODEGEN BEGIN THREE
+    if (bin == true) {
+        if (kernelSymtab->findAddress("es_intr", addr))
+            esIntrEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_intr\'");
+
+        if (kernelSymtab->findAddress("es_rxeof", addr))
+            esRxeofEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_rxeof\'");
+
+        if (kernelSymtab->findAddress("es_newbuf", addr))
+            esNewbufEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_newbuf\'");
+
+        if (kernelSymtab->findAddress("es_dma_load", addr))
+            esDmaLoadEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_dma_load\'");
+
+        if (kernelSymtab->findAddress("dma_map_load", addr))
+            dmaMapLoadEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'dma_map_load\'");
+
+        if (kernelSymtab->findAddress("ether_input", addr))
+            etherInputEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'ether_input\'");
+
+        if (kernelSymtab->findAddress("netisr_input", addr))
+            netisrInputEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'netisr_input\'");
+
+        if (kernelSymtab->findAddress("schednetisr_isr", addr))
+            schednetisrIsrEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'schednetisr_isr\'");
+
+        if (kernelSymtab->findAddress("ipintr", addr))
+            ipintrEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'ipintr\'");
+
+        if (kernelSymtab->findAddress("ip_dooptions", addr))
+            ipDooptionsEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'ip_dooptions\'");
+
+        if (kernelSymtab->findAddress("ip_reass", addr))
+            ipReassEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'ip_reass\'");
+
+        if (kernelSymtab->findAddress("tcp_input", addr))
+            tcpInputEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'tcp_input\'");
+
+        if (kernelSymtab->findAddress("sbappend", addr))
+            sbappendEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'sbappend\'");
+
+        if (kernelSymtab->findAddress("read", addr))
+            readEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'read\'");
+
+        if (kernelSymtab->findAddress("soo_read", addr))
+            sooReadEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'soo_read\'");
+
+        if (kernelSymtab->findAddress("orecv", addr))
+            orecvEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'orecv\'");
+
+        if (kernelSymtab->findAddress("recvit", addr))
+            recvitEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'recvit\'");
+
+        if (kernelSymtab->findAddress("soreceive", addr))
+            soreceiveEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'soreceive\'");
+
+        if (kernelSymtab->findAddress("osend", addr))
+            osendEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'osend\'");
+
+        if (kernelSymtab->findAddress("write", addr))
+            writeEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'write\'");
+
+        if (kernelSymtab->findAddress("soo_write", addr))
+            sooWriteEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'soo_write\'");
+
+        if (kernelSymtab->findAddress("sendit", addr))
+            senditEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'sendit\'");
+
+        if (kernelSymtab->findAddress("sosend", addr))
+            sosendEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'sosend\'");
+
+        if (kernelSymtab->findAddress("tcp_sosend", addr))
+            tcpSosendEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'tcp_sosend\'");
+
+        if (kernelSymtab->findAddress("tcp_output", addr))
+            tcpOutputEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'tcp_output\'");
+
+        if (kernelSymtab->findAddress("ip_output", addr))
+            ipOutputEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'ip_output\'");
+
+        if (kernelSymtab->findAddress("ether_output", addr))
+            etherOutputEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'ether_output\'");
+
+        if (kernelSymtab->findAddress("es_start", addr))
+            esStartEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_start\'");
+
+        if (kernelSymtab->findAddress("es_transmit", addr))
+            esTransmitEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_transmit\'");
+
+        if (kernelSymtab->findAddress("es_txeof", addr))
+            esTxeofEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'es_txeof\'");
+
+        if (kernelSymtab->findAddress("idle_thread", addr))
+            idleThreadEvent->schedule(addr);
+        else
+            panic("could not find kernel symbol \'idle_thread\'");
+
+    }
+    //INSTRUMENTATION CODEGEN END
+     if (bin == true) {
+        fnCalls
+            .name(name() + ":fnCalls")
+            .desc("all fn calls being tracked")
+            ;
+
+        populateMap("es_intr", "");
+        populateMap("es_rxeof", "es_intr");
+        populateMap("es_newbuf", "es_rxeof");
+        populateMap("es_dma_load", "es_newbuf");
+        populateMap("dma_map_load", "es_dma_load");
+        populateMap("ether_input", "es_rxeof");
+        populateMap("netisr_input", "ether_input");
+        populateMap("schednetisr_isr", "netisr_input");
+
+        populateMap("ipintr", "");
+        populateMap("ip_dooptions", "ipintr");
+        populateMap("ip_reass", "ipintr");
+        populateMap("tcp_input", "ipintr");
+        populateMap("sbappend", "tcp_input");
+
+        populateMap("read", "");
+        populateMap("orecv", "");
+        populateMap("soo_read", "read");
+        populateMap("recvit", "orecv");
+        populateMap("soreceive", "recvit");
+        populateMap("soreceive", "soo_read");
+
+        populateMap("write", "");
+        populateMap("osend", "");
+        populateMap("soo_write", "write");
+        populateMap("sendit", "osend");
+        populateMap("sosend", "sendit");
+        populateMap("sosend", "soo_write");
+        populateMap("tcp_sosend", "sosend");
+        populateMap("tcp_output", "tcp_sosend");
+        populateMap("ip_output", "tcp_output");
+        populateMap("ether_output", "ip_output");
+        populateMap("es_start", "ether_output");
+        populateMap("es_transmit", "es_start");
+
+        populateMap("es_txeof", "es_intr");
+
+        populateMap("idle_thread", "");
+    }
+#endif //FS_MEASURE
+}
+
+LinuxSystem::~LinuxSystem()
+{
+    delete kernel;
+    delete console;
+
+    delete kernelSymtab;
+    delete consoleSymtab;
+    delete bootloaderSymtab;
+
+    delete kernelPanicEvent;
+    delete consolePanicEvent;
+    delete badaddrEvent;
+    delete skipPowerStateEvent;
+    delete skipScavengeBootEvent;
+    delete printfEvent;
+    /*delete debugPrintfEvent;
+    delete debugPrintfrEvent;
+    delete dumpMbufEvent;
+*/
+#ifdef FS_MEASURE
+    //INSTRUMENTATION CODEGEN BEGIN FOUR
+    if (bin == true) {
+        delete esIntrEvent;
+        delete esRxeofEvent;
+        delete esNewbufEvent;
+        delete esDmaLoadEvent;
+        delete dmaMapLoadEvent;
+        delete etherInputEvent;
+        delete netisrInputEvent;
+        delete schednetisrIsrEvent;
+        delete ipintrEvent;
+        delete ipDooptionsEvent;
+        delete ipReassEvent;
+        delete tcpInputEvent;
+        delete sbappendEvent;
+        delete readEvent;
+        delete sooReadEvent;
+        delete orecvEvent;
+        delete recvitEvent;
+        delete soreceiveEvent;
+        delete osendEvent;
+        delete writeEvent;
+        delete sooWriteEvent;
+        delete senditEvent;
+        delete sosendEvent;
+        delete tcpSosendEvent;
+        delete tcpOutputEvent;
+        delete ipOutputEvent;
+        delete etherOutputEvent;
+        delete esStartEvent;
+        delete esTransmitEvent;
+        delete esTxeofEvent;
+        delete idleThreadEvent;
+    }
+    //INSTRUMENTATION CODEGEN END
+#endif //FS_MEASURE
+}
+
+int
+LinuxSystem::registerExecContext(ExecContext *xc)
+{
+    int xcIndex = System::registerExecContext(xc);
+
+    if (xcIndex == 0) {
+        // activate with zero delay so that we start ticking right
+        // away on cycle 0
+        xc->activate(0);
+    }
+
+    RemoteGDB *rgdb = new RemoteGDB(this, xc);
+    GDBListener *gdbl = new GDBListener(rgdb, 7000 + xcIndex);
+    gdbl->listen();
+
+    if (remoteGDB.size() <= xcIndex) {
+        remoteGDB.resize(xcIndex+1);
+    }
+
+    remoteGDB[xcIndex] = rgdb;
+
+    return xcIndex;
+}
+
+
+void
+LinuxSystem::replaceExecContext(ExecContext *xc, int xcIndex)
+{
+    System::replaceExecContext(xcIndex, xc);
+    remoteGDB[xcIndex]->replaceExecContext(xc);
+}
+
+bool
+LinuxSystem::breakpoint()
+{
+    return remoteGDB[0]->trap(ALPHA_KENTRY_IF);
+}
+
+#ifdef FS_MEASURE
+void
+LinuxSystem::populateMap(std::string callee, std::string caller)
+{
+    multimap<const string, string>::const_iterator i;
+    i = callerMap.insert(make_pair(callee, caller));
+    assert(i != callerMap.end() && "should not fail populating callerMap");
+}
+
+bool
+LinuxSystem::findCaller(std::string callee, std::string caller) const
+{
+    typedef multimap<const std::string, std::string>::const_iterator iter;
+    pair<iter, iter> range;
+
+    range = callerMap.equal_range(callee);
+    for (iter i = range.first; i != range.second; ++i) {
+        if ((*i).second == caller)
+            return true;
+    }
+    return false;
+}
+
+void
+LinuxSystem::dumpState(ExecContext *xc) const
+{
+#ifndef SW_DEBUG
+    return;
+#endif
+    if (xc->swCtx) {
+        stack<fnCall *> copy(xc->swCtx->callStack);
+        if (copy.empty())
+            return;
+        cprintf("xc->swCtx:\n");
+        fnCall *top;
+        cprintf("||   call: %d\n",xc->swCtx->calls);
+        for (top = copy.top(); !copy.empty(); copy.pop() ) {
+            top = copy.top();
+            cprintf("||  %13s : %s \n", top->name, top->myBin->name());
+        }
+    }
+}
+#endif //FS_MEASURE
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(LinuxSystem)
+
+    Param<bool> bin;
+    SimObjectParam<MemoryController *> mem_ctl;
+    SimObjectParam<PhysicalMemory *> physmem;
+    Param<uint64_t> init_param;
+
+    Param<string> kernel_code;
+    Param<string> console_code;
+    Param<string> pal_code;
+    Param<string> boot_osflags;
+    Param<string> bootloader_code;
+
+END_DECLARE_SIM_OBJECT_PARAMS(LinuxSystem)
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(LinuxSystem)
+
+    INIT_PARAM_DFLT(bin, "is this system to be binned", false),
+    INIT_PARAM(mem_ctl, "memory controller"),
+    INIT_PARAM(physmem, "phsyical memory"),
+    INIT_PARAM_DFLT(init_param, "numerical value to pass into simulator", 0),
+    INIT_PARAM(kernel_code, "file that contains the kernel code"),
+    INIT_PARAM(console_code, "file that contains the console code"),
+    INIT_PARAM(pal_code, "file that contains palcode"),
+    INIT_PARAM_DFLT(boot_osflags, "flags to pass to the kernel during boot",
+                                   "a"),
+    INIT_PARAM(bootloader_code, "file that contains the bootloader")
+
+
+END_INIT_SIM_OBJECT_PARAMS(LinuxSystem)
+
+CREATE_SIM_OBJECT(LinuxSystem)
+{
+    LinuxSystem *sys = new LinuxSystem(getInstanceName(), init_param, mem_ctl,
+                                       physmem, kernel_code, console_code,
+                                       pal_code, boot_osflags, bootloader_code, bin);
+
+    return sys;
+}
+
+REGISTER_SIM_OBJECT("LinuxSystem", LinuxSystem)