#include <unistd.h>
#include <fcntl.h>
+
+#include <cstdio>
#include <string>
-#include "arch/remote_gdb.hh"
#include "base/intmath.hh"
#include "base/loader/object_file.hh"
#include "base/loader/symtab.hh"
#include "base/statistics.hh"
#include "config/full_system.hh"
+#include "config/the_isa.hh"
#include "cpu/thread_context.hh"
#include "mem/page_table.hh"
#include "mem/physical.hh"
#include "mem/translating_port.hh"
#include "params/Process.hh"
#include "params/LiveProcess.hh"
+#include "sim/debug.hh"
#include "sim/process.hh"
#include "sim/process_impl.hh"
#include "sim/stats.hh"
#include "sim/syscall_emul.hh"
#include "sim/system.hh"
-#include "arch/isa_specific.hh"
#if THE_ISA == ALPHA_ISA
#include "arch/alpha/linux/process.hh"
#include "arch/alpha/tru64/process.hh"
#include "arch/arm/linux/process.hh"
#elif THE_ISA == X86_ISA
#include "arch/x86/linux/process.hh"
+#elif THE_ISA == POWER_ISA
+#include "arch/power/linux/process.hh"
#else
#error "THE_ISA not set"
#endif
// current number of allocated processes
int num_processes = 0;
+template<class IntType>
+AuxVector<IntType>::AuxVector(IntType type, IntType val)
+{
+ a_type = TheISA::htog(type);
+ a_val = TheISA::htog(val);
+}
+
+template class AuxVector<uint32_t>;
+template class AuxVector<uint64_t>;
+
Process::Process(ProcessParams * params)
- : SimObject(params), system(params->system), checkpointRestored(false),
- max_stack_size(params->max_stack_size)
+ : SimObject(params), system(params->system),
+ max_stack_size(params->max_stack_size)
{
string in = params->input;
string out = params->output;
+ string err = params->errout;
// initialize file descriptors to default: same as simulator
int stdin_fd, stdout_fd, stderr_fd;
else
stdout_fd = Process::openOutputFile(out);
- stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+ if (err == "stdout" || err == "cout")
+ stderr_fd = STDOUT_FILENO;
+ else if (err == "stderr" || err == "cerr")
+ stderr_fd = STDERR_FILENO;
+ else if (err == "None")
+ stderr_fd = -1;
+ else if (err == out)
+ stderr_fd = stdout_fd;
+ else
+ stderr_fd = Process::openOutputFile(err);
M5_pid = system->allocatePID();
// initialize first 3 fds (stdin, stdout, stderr)
fdo = &fd_map[STDERR_FILENO];
fdo->fd = stderr_fd;
- fdo->filename = "STDERR";
+ fdo->filename = err;
fdo->flags = O_WRONLY;
fdo->mode = -1;
fdo->fileOffset = 0;
int
Process::openOutputFile(const string &filename)
{
- int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0774);
+ int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664);
if (fd == -1) {
perror(NULL);
return fd;
}
-
-int
-Process::registerThreadContext(ThreadContext *tc)
+ThreadContext *
+Process::findFreeContext()
{
- // add to list
- int myIndex = threadContexts.size();
- threadContexts.push_back(tc);
-
- RemoteGDB *rgdb = new RemoteGDB(system, tc);
- GDBListener *gdbl = new GDBListener(rgdb, 7000 + myIndex);
- gdbl->listen();
- //gdbl->accept();
-
- remoteGDB.push_back(rgdb);
-
- // return CPU number to caller
- return myIndex;
+ int size = contextIds.size();
+ ThreadContext *tc;
+ for (int i = 0; i < size; ++i) {
+ tc = system->getThreadContext(contextIds[i]);
+ if (tc->status() == ThreadContext::Halted) {
+ // inactive context, free to use
+ return tc;
+ }
+ }
+ return NULL;
}
void
-Process::startup()
+Process::initState()
{
- if (threadContexts.empty())
- fatal("Process %s is not associated with any CPUs!\n", name());
+ if (contextIds.empty())
+ fatal("Process %s is not associated with any HW contexts!\n", name());
// first thread context for this process... initialize & enable
- ThreadContext *tc = threadContexts[0];
+ ThreadContext *tc = system->getThreadContext(contextIds[0]);
// mark this context as active so it will start ticking.
tc->activate(0);
initVirtMem->setPeer(mem_port);
}
-void
-Process::replaceThreadContext(ThreadContext *tc, int tcIndex)
-{
- if (tcIndex >= threadContexts.size()) {
- panic("replaceThreadContext: bad tcIndex, %d >= %d\n",
- tcIndex, threadContexts.size());
- }
-
- threadContexts[tcIndex] = tc;
-}
-
// map simulator fd sim_fd to target fd tgt_fd
void
Process::dup_fd(int sim_fd, int tgt_fd)
return &fd_map[tgt_fd];
}
+
bool
Process::checkAndAllocNextPage(Addr vaddr)
{
if(stack_base - stack_min > 8*1024*1024)
fatal("Over max stack size for one thread\n");
pTable->allocate(stack_min, TheISA::PageBytes);
- warn("Increasing stack size by one page.");
+ inform("Increasing stack size by one page.");
};
return true;
}
return false;
}
- // find all offsets for currently open files and save them
+// find all offsets for currently open files and save them
void
-Process::fix_file_offsets() {
+Process::fix_file_offsets()
+{
Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
string in = fdo_stdin->filename;
string out = fdo_stdout->filename;
+ string err = fdo_stderr->filename;
// initialize file descriptors to default: same as simulator
int stdin_fd, stdout_fd, stderr_fd;
stdin_fd = STDIN_FILENO;
else if (in == "None")
stdin_fd = -1;
- else{
- //OPEN standard in and seek to the right location
+ else {
+ // open standard in and seek to the right location
stdin_fd = Process::openInputFile(in);
if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
panic("Unable to seek to correct location in file: %s", in);
stdout_fd = STDERR_FILENO;
else if (out == "None")
stdout_fd = -1;
- else{
+ else {
stdout_fd = Process::openOutputFile(out);
- if (lseek(stdin_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
- panic("Unable to seek to correct in file: %s", out);
+ if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
+ panic("Unable to seek to correct location in file: %s", out);
}
- stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+ if (err == "stdout" || err == "cout")
+ stderr_fd = STDOUT_FILENO;
+ else if (err == "stderr" || err == "cerr")
+ stderr_fd = STDERR_FILENO;
+ else if (err == "None")
+ stderr_fd = -1;
+ else if (err == out)
+ stderr_fd = stdout_fd;
+ else {
+ stderr_fd = Process::openOutputFile(err);
+ if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0)
+ panic("Unable to seek to correct location in file: %s", err);
+ }
fdo_stdin->fd = stdin_fd;
fdo_stdout->fd = stdout_fd;
//Seek to correct location before checkpoint
if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
- panic("Unable to seek to correct location in file: %s", fdo->filename);
+ panic("Unable to seek to correct location in file: %s",
+ fdo->filename);
}
}
}
}
+
void
-Process::find_file_offsets(){
+Process::find_file_offsets()
+{
for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
Process::FdMap *fdo = &fd_map[free_fd];
if (fdo->fd != -1) {
fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
- } else {
+ } else {
fdo->filename = "NULL";
fdo->fileOffset = 0;
}
}
void
-Process::setReadPipeSource(int read_pipe_fd, int source_fd){
+Process::setReadPipeSource(int read_pipe_fd, int source_fd)
+{
Process::FdMap *fdo = &fd_map[read_pipe_fd];
fdo->readPipeSource = source_fd;
}
void
Process::serialize(std::ostream &os)
{
- SERIALIZE_SCALAR(initialContextLoaded);
SERIALIZE_SCALAR(brk_point);
SERIALIZE_SCALAR(stack_base);
SERIALIZE_SCALAR(stack_size);
nameOut(os, csprintf("%s.FdMap%d", name(), x));
fd_map[x].serialize(os);
}
+ SERIALIZE_SCALAR(M5_pid);
}
void
Process::unserialize(Checkpoint *cp, const std::string §ion)
{
- UNSERIALIZE_SCALAR(initialContextLoaded);
UNSERIALIZE_SCALAR(brk_point);
UNSERIALIZE_SCALAR(stack_base);
UNSERIALIZE_SCALAR(stack_size);
pTable->unserialize(cp, section);
for (int x = 0; x <= MAX_FD; x++) {
fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
- }
+ }
fix_file_offsets();
-
- checkpointRestored = true;
-
+ UNSERIALIZE_OPT_SCALAR(M5_pid);
+ // The above returns a bool so that you could do something if you don't
+ // find the param in the checkpoint if you wanted to, like set a default
+ // but in this case we'll just stick with the instantianted value if not
+ // found.
}
}
}
-void
-LiveProcess::argsInit(int intSize, int pageSize)
-{
- Process::startup();
-
- // load object file into target memory
- objFile->loadSections(initVirtMem);
-
- // Calculate how much space we need for arg & env arrays.
- int argv_array_size = intSize * (argv.size() + 1);
- int envp_array_size = intSize * (envp.size() + 1);
- int arg_data_size = 0;
- for (int i = 0; i < argv.size(); ++i) {
- arg_data_size += argv[i].size() + 1;
- }
- int env_data_size = 0;
- for (int i = 0; i < envp.size(); ++i) {
- env_data_size += envp[i].size() + 1;
- }
-
- int space_needed =
- argv_array_size + envp_array_size + arg_data_size + env_data_size;
- if (space_needed < 32*1024)
- space_needed = 32*1024;
-
- // set bottom of stack
- stack_min = stack_base - space_needed;
- // align it
- stack_min = roundDown(stack_min, pageSize);
- stack_size = stack_base - stack_min;
- // map memory
- pTable->allocate(stack_min, roundUp(stack_size, pageSize));
-
- // map out initial stack contents
- Addr argv_array_base = stack_min + intSize; // room for argc
- Addr envp_array_base = argv_array_base + argv_array_size;
- Addr arg_data_base = envp_array_base + envp_array_size;
- Addr env_data_base = arg_data_base + arg_data_size;
-
- // write contents to stack
- uint64_t argc = argv.size();
- if (intSize == 8)
- argc = htog((uint64_t)argc);
- else if (intSize == 4)
- argc = htog((uint32_t)argc);
- else
- panic("Unknown int size");
-
- initVirtMem->writeBlob(stack_min, (uint8_t*)&argc, intSize);
-
- copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem);
- copyStringArray(envp, envp_array_base, env_data_base, initVirtMem);
-
- assert(NumArgumentRegs >= 2);
- threadContexts[0]->setIntReg(ArgumentReg[0], argc);
- threadContexts[0]->setIntReg(ArgumentReg[1], argv_array_base);
- threadContexts[0]->setIntReg(StackPointerReg, stack_min);
-
- Addr prog_entry = objFile->entryPoint();
- threadContexts[0]->setPC(prog_entry);
- threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
-
-#if THE_ISA != ALPHA_ISA //e.g. MIPS or Sparc
- threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
-#endif
-
- num_processes++;
-}
-
void
LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
{
desc->doSyscall(callnum, this, tc);
}
+IntReg
+LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width)
+{
+ return getSyscallArg(tc, i);
+}
+
LiveProcess *
LiveProcess::create(LiveProcessParams * params)
{
"executable as a static binary and try again.\n");
#if THE_ISA == ALPHA_ISA
- if (objFile->hasTLS())
- fatal("Object file has a TLS section and single threaded TLS is not\n"
- " currently supported for Alpha! Please recompile your "
- "executable with \n a non-TLS toolchain.\n");
-
if (objFile->getArch() != ObjectFile::Alpha)
fatal("Object file architecture does not match compiled ISA (Alpha).");
+
switch (objFile->getOpSys()) {
case ObjectFile::Tru64:
process = new AlphaTru64Process(params, objFile);
break;
+ case ObjectFile::UnknownOpSys:
+ warn("Unknown operating system; assuming Linux.");
+ // fall through
case ObjectFile::Linux:
process = new AlphaLinuxProcess(params, objFile);
break;
fatal("Unknown/unsupported operating system.");
}
#elif THE_ISA == SPARC_ISA
- if (objFile->getArch() != ObjectFile::SPARC64 && objFile->getArch() != ObjectFile::SPARC32)
+ if (objFile->getArch() != ObjectFile::SPARC64 &&
+ objFile->getArch() != ObjectFile::SPARC32)
fatal("Object file architecture does not match compiled ISA (SPARC).");
switch (objFile->getOpSys()) {
+ case ObjectFile::UnknownOpSys:
+ warn("Unknown operating system; assuming Linux.");
+ // fall through
case ObjectFile::Linux:
if (objFile->getArch() == ObjectFile::SPARC64) {
process = new Sparc64LinuxProcess(params, objFile);
case ObjectFile::Solaris:
process = new SparcSolarisProcess(params, objFile);
break;
+
default:
fatal("Unknown/unsupported operating system.");
}
#elif THE_ISA == X86_ISA
- if (objFile->getArch() != ObjectFile::X86)
+ if (objFile->getArch() != ObjectFile::X86_64 &&
+ objFile->getArch() != ObjectFile::I386)
fatal("Object file architecture does not match compiled ISA (x86).");
switch (objFile->getOpSys()) {
+ case ObjectFile::UnknownOpSys:
+ warn("Unknown operating system; assuming Linux.");
+ // fall through
case ObjectFile::Linux:
- process = new X86LinuxProcess(params, objFile);
+ if (objFile->getArch() == ObjectFile::X86_64) {
+ process = new X86_64LinuxProcess(params, objFile);
+ } else {
+ process = new I386LinuxProcess(params, objFile);
+ }
break;
+
default:
fatal("Unknown/unsupported operating system.");
}
if (objFile->getArch() != ObjectFile::Mips)
fatal("Object file architecture does not match compiled ISA (MIPS).");
switch (objFile->getOpSys()) {
+ case ObjectFile::UnknownOpSys:
+ warn("Unknown operating system; assuming Linux.");
+ // fall through
case ObjectFile::Linux:
process = new MipsLinuxProcess(params, objFile);
break;
fatal("Unknown/unsupported operating system.");
}
#elif THE_ISA == ARM_ISA
- if (objFile->getArch() != ObjectFile::Arm)
+ if (objFile->getArch() != ObjectFile::Arm &&
+ objFile->getArch() != ObjectFile::Thumb)
fatal("Object file architecture does not match compiled ISA (ARM).");
switch (objFile->getOpSys()) {
+ case ObjectFile::UnknownOpSys:
+ warn("Unknown operating system; assuming Linux.");
+ // fall through
+ case ObjectFile::Linux:
+ process = new ArmLinuxProcess(params, objFile, objFile->getArch());
+ break;
+ case ObjectFile::LinuxArmOABI:
+ fatal("M5 does not support ARM OABI binaries. Please recompile with an"
+ " EABI compiler.");
+ default:
+ fatal("Unknown/unsupported operating system.");
+ }
+#elif THE_ISA == POWER_ISA
+ if (objFile->getArch() != ObjectFile::Power)
+ fatal("Object file architecture does not match compiled ISA (Power).");
+ switch (objFile->getOpSys()) {
+ case ObjectFile::UnknownOpSys:
+ warn("Unknown operating system; assuming Linux.");
+ // fall through
case ObjectFile::Linux:
- process = new ArmLinuxProcess(params, objFile);
+ process = new PowerLinuxProcess(params, objFile);
break;
default:
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