gem5/sim/universe.cc
Nathan Binkert 3ece6ab029 New and improved configuration mechanism. No more writing of
wierd ini files.  The ini files are still used as an intermediate step,
but a sophisticated python library exists to help build them more
easily.

SConscript:
    add the new embedded file stuff
    remove all of the old object description junk
base/inifile.cc:
base/inifile.hh:
    get rid of findDefault and findAppend since they were the source
    of much evil.
base/trace.cc:
    For now, if we don't have the dprintf_stream set up, dump
    to standard out.  We probably want a command line option
    for this.
dev/alpha_console.cc:
    PioDevice now takes a platform parameter.
    All PioDevices must have a pio_latency parameter.  We stick
    a dummy parameter in here for now until we get rid of the
    builder stuff.
dev/alpha_console.hh:
    don't need Platform anymore
dev/baddev.cc:
    PioDevice now takes a platform parameter.
    All PioDevices must have a pio_latency parameter.  We stick
    a dummy parameter in here for now until we get rid of the
    builder stuff. Same for the platform parameter, though we just
    pass the PioDevice a null parameter since it isn't used by
    this device and it's quicker.
dev/baddev.hh:
    fix #include guards
dev/etherlink.cc:
    rename parameters.
dev/ethertap.cc:
    rename parameters
dev/ide_ctrl.cc:
    All devices need an address even if it will get overwritten later.
dev/ide_disk.cc:
    use an enum for the drive ID stuff.
    rename disk_delay -> delay
    Actually, I think that we should implement "cable select" and
    have the controller tell the drive what it is.
dev/io_device.cc:
dev/io_device.hh:
    All IO devices take a Platform *
dev/ns_gige.cc:
    all devices need an io_bus.  rename header_bus to io_bus
    We don't need stuff for the interrupt controller since
    it's all in the platform now.
dev/ns_gige.hh:
    We don't need stuff for the interrupt controller now since
    it's all in the platform.
dev/pciconfigall.cc:
    Pass a dummy NULL to the PioDevice for the platform since
    we don't need one.
dev/pcidev.cc:
    Move a bunch of common functionality into the PciDev
dev/platform.hh:
    remove unneeded code
dev/tsunami.cc:
    remove unused param
dev/tsunami_cchip.cc:
    pass platform pointer
dev/tsunami_io.cc:
dev/tsunami_pchip.cc:
dev/uart.cc:
    pass platform variable
dev/uart.hh:
    don't need to keep a platform pointer.  it's in the base class
kern/linux/linux_system.cc:
kern/tru64/tru64_system.cc:
    rename some parameters
sim/builder.cc:
    clean up builder code. use more parameters from the
    config node.  all sections with a type= are now created,
    the old mechanisms no longer work
sim/builder.hh:
    remove some extra variables since they are found in the ConfigNode
sim/main.cc:
    add a quick hack command line argument -X to dump out the
    embedded files.  (probably should be fixed up a little.)
    accept .mpy files
    printing to the streams has to happen after the hierarchy
    is built since we're moving away from param contexts
sim/param.cc:
    add parsing support for ranges
sim/process.cc:
    isValid isn't very useful anymore.  interpret the names
    stdout, stderr, cout, cerr for the file descriptors
sim/pyconfig/SConscript:
    Add Action handlers for creating an embedded python file
    and for creating an embedded C file.

    use these action handlers to embed all objects found in the objects
    tree into the binary along with the importer and the m5config stuff
sim/pyconfig/m5config.py:
    Major changes to the original configuration file generator.  These
    changes largely involve implementing copy-on-write like semantics
    for all of the SimObjects.  Real documentation must be written.
sim/universe.cc:
    Universe becomes a SimObject since we don't really have the notion of
    param contexts in the python code.

--HG--
rename : sim/pyconfig/m5configbase.py => sim/pyconfig/m5config.py
extra : convert_revision : c353453e5beb91c37f15755998fc0d8858c6829a
2005-01-15 04:12:25 -05:00

169 lines
5 KiB
C++

/*
* Copyright (c) 2002-2004 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 <sys/types.h>
#include <sys/stat.h>
#include <cstring>
#include <fstream>
#include <list>
#include <string>
#include <vector>
#include "base/misc.hh"
#include "sim/builder.hh"
#include "sim/host.hh"
#include "sim/sim_object.hh"
#include "sim/universe.hh"
using namespace std;
Tick curTick = 0;
Tick ticksPerSecond;
double __ticksPerMS;
double __ticksPerUS;
double __ticksPerNS;
double __ticksPerPS;
string outputDirectory;
ostream *outputStream;
ostream *configStream;
// Dummy Object
class Root : public SimObject
{
public:
Root(const std::string &name) : SimObject(name) {}
};
Root *root = NULL;
std::ostream *
makeOutputStream(std::string &name)
{
if (name == "cerr" || name == "stderr")
return &std::cerr;
if (name == "cout" || name == "stdout")
return &std::cout;
string path = (name[0] != '/') ? outputDirectory + name : name;
// have to dynamically allocate a stream since we're going to
// return it... though the caller can't easily free it since it
// may be cerr or cout. need GC!
ofstream *s = new ofstream(path.c_str(), ios::trunc);
if (!s->is_open())
fatal("Cannot open file %s", path);
return s;
}
void
closeOutputStream(std::ostream *os)
{
// can't close cerr or cout
if (os == &std::cerr || os == &std::cout)
return;
// can only close ofstreams, not generic ostreams, so try to
// downcast and close only if the downcast succeeds
std::ofstream *ofs = dynamic_cast<std::ofstream *>(os);
if (ofs)
ofs->close();
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(Root)
Param<bool> full_system;
Param<Tick> frequency;
Param<string> output_dir;
Param<string> output_file;
Param<string> config_output_file;
END_DECLARE_SIM_OBJECT_PARAMS(Root)
BEGIN_INIT_SIM_OBJECT_PARAMS(Root)
INIT_PARAM_DFLT(full_system, "full system simulation", true),
INIT_PARAM_DFLT(frequency, "tick frequency", 200000000),
INIT_PARAM_DFLT(output_dir, "directory to output data to", "."),
INIT_PARAM_DFLT(output_file, "file to dump simulator output to", "cout"),
INIT_PARAM_DFLT(config_output_file, "file to dump simulator config to",
"m5config.out")
END_INIT_SIM_OBJECT_PARAMS(Root)
CREATE_SIM_OBJECT(Root)
{
#ifdef FULL_SYSTEM
if (!bool(full_system))
panic("FULL_SYSTEM compiled and configuration not full_system");
#else
if (bool(full_system))
panic("FULL_SYSTEM not compiled but configuration is full_system");
#endif
if (root)
panic("only one root object allowed!");
root = new Root(getInstanceName());
ticksPerSecond = frequency;
double freq = double(ticksPerSecond);
__ticksPerMS = freq / 1.0e3;
__ticksPerUS = freq / 1.0e6;
__ticksPerNS = freq / 1.0e9;
__ticksPerPS = freq / 1.0e12;
if (output_dir.isValid()) {
outputDirectory = output_dir;
// guarantee that directory ends with a '/'
if (outputDirectory[outputDirectory.size() - 1] != '/')
outputDirectory += "/";
if (mkdir(outputDirectory.c_str(), 0777) < 0) {
if (errno != EEXIST) {
panic("%s\ncould not make output directory: %s\n",
strerror(errno), outputDirectory);
}
}
}
outputStream = makeOutputStream(output_file);
configStream = config_output_file.isValid()
? makeOutputStream(config_output_file)
: outputStream;
return root;
}
REGISTER_SIM_OBJECT("Root", Root)