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/*
* Copyright (c) 2003-2004 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 "arch/mips/isa_traits.hh"
#include "arch/mips/process.hh"
#include "arch/mips/linux/process.hh"
#include "base/loader/object_file.hh"
#include "base/misc.hh"
#include "cpu/exec_context.hh"
#include "sim/builder.hh"
#include "sim/system.hh"
using namespace std;
using namespace MipsISA;
MipsLiveProcess *
MipsLiveProcess::create(const std::string &nm, System *system, int stdin_fd,
int stdout_fd, int stderr_fd, std::string executable,
std::vector<std::string> &argv, std::vector<std::string> &envp)
{
MipsLiveProcess *process = NULL;
ObjectFile *objFile = createObjectFile(executable);
if (objFile == NULL) {
fatal("Can't load object file %s", executable);
}
if (objFile->getArch() != ObjectFile::Mips)
fatal("Object file does not match architecture.");
switch (objFile->getOpSys()) {
case ObjectFile::Linux:
process = new MipsLinuxProcess(nm, objFile, system,
stdin_fd, stdout_fd, stderr_fd,
argv, envp);
break;
default:
fatal("Unknown/unsupported operating system.");
}
if (process == NULL)
fatal("Unknown error creating process object.");
return process;
}
MipsLiveProcess::MipsLiveProcess(const std::string &nm, ObjectFile *objFile,
System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv, std::vector<std::string> &envp)
: LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
argv, envp)
{
// XXX all the below need to be updated for SPARC - Ali
brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
brk_point = roundUp(brk_point, VMPageSize);
// Set up stack. On Alpha, stack goes below text section. This
// code should get moved to some architecture-specific spot.
stack_base = objFile->textBase() - (409600+4096);
// Set up region for mmaps. Tru64 seems to start just above 0 and
// grow up from there.
mmap_start = mmap_end = 0x10000;
// Set pointer for next thread stack. Reserve 8M for main stack.
next_thread_stack_base = stack_base - (8 * 1024 * 1024);
}
void
MipsLiveProcess::startup()
{
argsInit(MachineBytes, VMPageSize);
}
BEGIN_DECLARE_SIM_OBJECT_PARAMS(MipsLiveProcess)
VectorParam<string> cmd;
Param<string> executable;
Param<string> input;
Param<string> output;
VectorParam<string> env;
SimObjectParam<System *> system;
END_DECLARE_SIM_OBJECT_PARAMS(MipsLiveProcess)
BEGIN_INIT_SIM_OBJECT_PARAMS(MipsLiveProcess)
INIT_PARAM(cmd, "command line (executable plus arguments)"),
INIT_PARAM(executable, "executable (overrides cmd[0] if set)"),
INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"),
INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"),
INIT_PARAM(env, "environment settings"),
INIT_PARAM(system, "system")
END_INIT_SIM_OBJECT_PARAMS(MipsLiveProcess)
CREATE_SIM_OBJECT(MipsLiveProcess)
{
string in = input;
string out = output;
// initialize file descriptors to default: same as simulator
int stdin_fd, stdout_fd, stderr_fd;
if (in == "stdin" || in == "cin")
stdin_fd = STDIN_FILENO;
else
stdin_fd = Process::openInputFile(input);
if (out == "stdout" || out == "cout")
stdout_fd = STDOUT_FILENO;
else if (out == "stderr" || out == "cerr")
stdout_fd = STDERR_FILENO;
else
stdout_fd = Process::openOutputFile(out);
stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
return MipsLiveProcess::create(getInstanceName(), system,
stdin_fd, stdout_fd, stderr_fd,
(string)executable == "" ? cmd[0] : executable,
cmd, env);
}
REGISTER_SIM_OBJECT("MipsLiveProcess", MipsLiveProcess)
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