#include <unistd.h>
#include <fcntl.h>
-
#include <string>
+#include "arch/remote_gdb.hh"
#include "base/intmath.hh"
#include "base/loader/object_file.hh"
#include "base/loader/symtab.hh"
#include "mem/page_table.hh"
#include "mem/physical.hh"
#include "mem/translating_port.hh"
-#include "sim/builder.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/sparc/solaris/process.hh"
#elif THE_ISA == MIPS_ISA
#include "arch/mips/linux/process.hh"
+#elif THE_ISA == ARM_ISA
+#include "arch/arm/linux/process.hh"
+#elif THE_ISA == X86_ISA
+#include "arch/x86/linux/process.hh"
#else
#error "THE_ISA not set"
#endif
// current number of allocated processes
int num_processes = 0;
-Process::Process(const string &nm,
- System *_system,
- int stdin_fd, // initial I/O descriptors
- int stdout_fd,
- int stderr_fd)
- : SimObject(nm), system(_system)
+Process::Process(ProcessParams * params)
+ : SimObject(params), system(params->system), checkpointRestored(false),
+ max_stack_size(params->max_stack_size)
{
+ string in = params->input;
+ string out = params->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 if (in == "None")
+ stdin_fd = -1;
+ else
+ stdin_fd = Process::openInputFile(in);
+
+ if (out == "stdout" || out == "cout")
+ stdout_fd = STDOUT_FILENO;
+ else if (out == "stderr" || out == "cerr")
+ stdout_fd = STDERR_FILENO;
+ else if (out == "None")
+ stdout_fd = -1;
+ else
+ stdout_fd = Process::openOutputFile(out);
+
+ stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+
+ M5_pid = system->allocatePID();
// initialize first 3 fds (stdin, stdout, stderr)
- fd_map[STDIN_FILENO] = stdin_fd;
- fd_map[STDOUT_FILENO] = stdout_fd;
- fd_map[STDERR_FILENO] = stderr_fd;
+ Process::FdMap *fdo = &fd_map[STDIN_FILENO];
+ fdo->fd = stdin_fd;
+ fdo->filename = in;
+ fdo->flags = O_RDONLY;
+ fdo->mode = -1;
+ fdo->fileOffset = 0;
+
+ fdo = &fd_map[STDOUT_FILENO];
+ fdo->fd = stdout_fd;
+ fdo->filename = out;
+ fdo->flags = O_WRONLY | O_CREAT | O_TRUNC;
+ fdo->mode = 0774;
+ fdo->fileOffset = 0;
+
+ fdo = &fd_map[STDERR_FILENO];
+ fdo->fd = stderr_fd;
+ fdo->filename = "STDERR";
+ fdo->flags = O_WRONLY;
+ fdo->mode = -1;
+ fdo->fileOffset = 0;
+
// mark remaining fds as free
for (int i = 3; i <= MAX_FD; ++i) {
- fd_map[i] = -1;
+ Process::FdMap *fdo = &fd_map[i];
+ fdo->fd = -1;
}
mmap_start = mmap_end = 0;
nxm_start = nxm_end = 0;
- pTable = new PageTable(system);
+ pTable = new PageTable(this);
// other parameters will be initialized when the program is loaded
}
int myIndex = threadContexts.size();
threadContexts.push_back(tc);
+ int port = getRemoteGDBPort();
+ if (port) {
+ RemoteGDB *rgdb = new RemoteGDB(system, tc);
+ GDBListener *gdbl = new GDBListener(rgdb, port + myIndex);
+ gdbl->listen();
+
+ remoteGDB.push_back(rgdb);
+ }
+
// return CPU number to caller
return myIndex;
}
Port *mem_port;
mem_port = system->physmem->getPort("functional");
- initVirtMem = new TranslatingPort("process init port", pTable, true);
+ initVirtMem = new TranslatingPort("process init port", this,
+ TranslatingPort::Always);
mem_port->setPeer(initVirtMem);
initVirtMem->setPeer(mem_port);
}
if (tgt_fd < 0 || tgt_fd > MAX_FD)
panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
- fd_map[tgt_fd] = sim_fd;
+ Process::FdMap *fdo = &fd_map[tgt_fd];
+ fdo->fd = sim_fd;
}
// generate new target fd for sim_fd
int
-Process::alloc_fd(int sim_fd)
+Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
{
// in case open() returns an error, don't allocate a new fd
if (sim_fd == -1)
return -1;
// find first free target fd
- for (int free_fd = 0; free_fd < MAX_FD; ++free_fd) {
- if (fd_map[free_fd] == -1) {
- fd_map[free_fd] = sim_fd;
+ for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
+ Process::FdMap *fdo = &fd_map[free_fd];
+ if (fdo->fd == -1) {
+ fdo->fd = sim_fd;
+ fdo->filename = filename;
+ fdo->mode = mode;
+ fdo->fileOffset = 0;
+ fdo->flags = flags;
+ fdo->isPipe = pipe;
+ fdo->readPipeSource = 0;
return free_fd;
}
}
void
Process::free_fd(int tgt_fd)
{
- if (fd_map[tgt_fd] == -1)
+ Process::FdMap *fdo = &fd_map[tgt_fd];
+ if (fdo->fd == -1)
warn("Process::free_fd: request to free unused fd %d", tgt_fd);
- fd_map[tgt_fd] = -1;
+ fdo->fd = -1;
+ fdo->filename = "NULL";
+ fdo->mode = 0;
+ fdo->fileOffset = 0;
+ fdo->flags = 0;
+ fdo->isPipe = false;
+ fdo->readPipeSource = 0;
}
if (tgt_fd > MAX_FD)
return -1;
- return fd_map[tgt_fd];
+ return fd_map[tgt_fd].fd;
}
+Process::FdMap *
+Process::sim_fd_obj(int tgt_fd)
+{
+ if (tgt_fd > MAX_FD)
+ panic("sim_fd_obj called in fd out of range.");
+ return &fd_map[tgt_fd];
+}
+bool
+Process::checkAndAllocNextPage(Addr vaddr)
+{
+ // if this is an initial write we might not have
+ if (vaddr >= stack_min && vaddr < stack_base) {
+ pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize);
+ return true;
+ }
-//
-// need to declare these here since there is no concrete Process type
-// that can be constructed (i.e., no REGISTER_SIM_OBJECT() macro call,
-// which is where these get declared for concrete types).
-//
-DEFINE_SIM_OBJECT_CLASS_NAME("Process", Process)
+ // We've accessed the next page of the stack, so extend the stack
+ // to cover it.
+ if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
+ while (vaddr < stack_min) {
+ stack_min -= TheISA::PageBytes;
+ if(stack_base - stack_min > max_stack_size)
+ fatal("Maximum stack size exceeded\n");
+ 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.");
+ };
+ return true;
+ }
+ return false;
+}
+ // find all offsets for currently open files and save them
+void
+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;
-////////////////////////////////////////////////////////////////////////
-//
-// LiveProcess member definitions
-//
-////////////////////////////////////////////////////////////////////////
+ // 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 if (in == "None")
+ stdin_fd = -1;
+ 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);
+ }
+
+ if (out == "stdout" || out == "cout")
+ stdout_fd = STDOUT_FILENO;
+ else if (out == "stderr" || out == "cerr")
+ stdout_fd = STDERR_FILENO;
+ else if (out == "None")
+ stdout_fd = -1;
+ 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);
+ }
+
+ stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+
+ fdo_stdin->fd = stdin_fd;
+ fdo_stdout->fd = stdout_fd;
+ fdo_stderr->fd = stderr_fd;
+
+
+ for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
+ Process::FdMap *fdo = &fd_map[free_fd];
+ if (fdo->fd != -1) {
+ if (fdo->isPipe){
+ if (fdo->filename == "PIPE-WRITE")
+ continue;
+ else {
+ assert (fdo->filename == "PIPE-READ");
+ //create a new pipe
+ int fds[2];
+ int pipe_retval = pipe(fds);
+
+ if (pipe_retval < 0) {
+ // error
+ panic("Unable to create new pipe.");
+ }
+ fdo->fd = fds[0]; //set read pipe
+ Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
+ if (fdo_write->filename != "PIPE-WRITE")
+ panic ("Couldn't find write end of the pipe");
+
+ fdo_write->fd = fds[1];//set write pipe
+ }
+ } else {
+ //Open file
+ int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
+
+ if (fd == -1)
+ panic("Unable to open file: %s", fdo->filename);
+ fdo->fd = 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);
+ }
+ }
+ }
+}
+void
+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 {
+ fdo->filename = "NULL";
+ fdo->fileOffset = 0;
+ }
+ }
+}
+void
+Process::setReadPipeSource(int read_pipe_fd, int source_fd){
+ Process::FdMap *fdo = &fd_map[read_pipe_fd];
+ fdo->readPipeSource = source_fd;
+}
void
-copyStringArray(vector<string> &strings, Addr array_ptr, Addr data_ptr,
- TranslatingPort* memPort)
+Process::FdMap::serialize(std::ostream &os)
{
- Addr data_ptr_swap;
- for (int i = 0; i < strings.size(); ++i) {
- data_ptr_swap = htog(data_ptr);
- memPort->writeBlob(array_ptr, (uint8_t*)&data_ptr_swap, sizeof(Addr));
- memPort->writeString(data_ptr, strings[i].c_str());
- array_ptr += sizeof(Addr);
- data_ptr += strings[i].size() + 1;
+ SERIALIZE_SCALAR(fd);
+ SERIALIZE_SCALAR(isPipe);
+ SERIALIZE_SCALAR(filename);
+ SERIALIZE_SCALAR(flags);
+ SERIALIZE_SCALAR(readPipeSource);
+ SERIALIZE_SCALAR(fileOffset);
+}
+
+void
+Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion)
+{
+ UNSERIALIZE_SCALAR(fd);
+ UNSERIALIZE_SCALAR(isPipe);
+ UNSERIALIZE_SCALAR(filename);
+ UNSERIALIZE_SCALAR(flags);
+ UNSERIALIZE_SCALAR(readPipeSource);
+ UNSERIALIZE_SCALAR(fileOffset);
+}
+
+void
+Process::serialize(std::ostream &os)
+{
+ SERIALIZE_SCALAR(initialContextLoaded);
+ SERIALIZE_SCALAR(brk_point);
+ SERIALIZE_SCALAR(stack_base);
+ SERIALIZE_SCALAR(stack_size);
+ SERIALIZE_SCALAR(stack_min);
+ SERIALIZE_SCALAR(next_thread_stack_base);
+ SERIALIZE_SCALAR(mmap_start);
+ SERIALIZE_SCALAR(mmap_end);
+ SERIALIZE_SCALAR(nxm_start);
+ SERIALIZE_SCALAR(nxm_end);
+ find_file_offsets();
+ pTable->serialize(os);
+ for (int x = 0; x <= MAX_FD; x++) {
+ nameOut(os, csprintf("%s.FdMap%d", name(), x));
+ fd_map[x].serialize(os);
}
- // add NULL terminator
- data_ptr = 0;
- memPort->writeBlob(array_ptr, (uint8_t*)&data_ptr, sizeof(Addr));
}
-LiveProcess::LiveProcess(const string &nm, ObjectFile *_objFile,
- System *_system,
- int stdin_fd, int stdout_fd, int stderr_fd,
- vector<string> &_argv, vector<string> &_envp)
- : Process(nm, _system, stdin_fd, stdout_fd, stderr_fd),
- objFile(_objFile), argv(_argv), envp(_envp)
+void
+Process::unserialize(Checkpoint *cp, const std::string §ion)
+{
+ UNSERIALIZE_SCALAR(initialContextLoaded);
+ UNSERIALIZE_SCALAR(brk_point);
+ UNSERIALIZE_SCALAR(stack_base);
+ UNSERIALIZE_SCALAR(stack_size);
+ UNSERIALIZE_SCALAR(stack_min);
+ UNSERIALIZE_SCALAR(next_thread_stack_base);
+ UNSERIALIZE_SCALAR(mmap_start);
+ UNSERIALIZE_SCALAR(mmap_end);
+ UNSERIALIZE_SCALAR(nxm_start);
+ UNSERIALIZE_SCALAR(nxm_end);
+ 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;
+
+}
+
+
+////////////////////////////////////////////////////////////////////////
+//
+// LiveProcess member definitions
+//
+////////////////////////////////////////////////////////////////////////
+
+
+LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile)
+ : Process(params), objFile(_objFile),
+ argv(params->cmd), envp(params->env), cwd(params->cwd)
{
- prog_fname = argv[0];
+ __uid = params->uid;
+ __euid = params->euid;
+ __gid = params->gid;
+ __egid = params->egid;
+ __pid = params->pid;
+ __ppid = params->ppid;
+
+ prog_fname = params->cmd[0];
// load up symbols, if any... these may be used for debugging or
// profiling.
int space_needed =
argv_array_size + envp_array_size + arg_data_size + env_data_size;
- // for SimpleScalar compatibility
- if (space_needed < 16384)
- space_needed = 16384;
+ if (space_needed < 32*1024)
+ space_needed = 32*1024;
// set bottom of stack
stack_min = stack_base - space_needed;
copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem);
copyStringArray(envp, envp_array_base, env_data_base, initVirtMem);
- threadContexts[0]->setIntReg(ArgumentReg0, argc);
- threadContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
+ 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();
}
LiveProcess *
-LiveProcess::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)
+LiveProcess::create(LiveProcessParams * params)
{
LiveProcess *process = NULL;
+ string executable =
+ params->executable == "" ? params->cmd[0] : params->executable;
ObjectFile *objFile = createObjectFile(executable);
if (objFile == NULL) {
fatal("Can't load object file %s", executable);
}
+ if (objFile->isDynamic())
+ fatal("Object file is a dynamic executable however only static "
+ "executables are supported!\n Please recompile your "
+ "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(nm, objFile, system,
- stdin_fd, stdout_fd, stderr_fd,
- argv, envp);
+ process = new AlphaTru64Process(params, objFile);
break;
case ObjectFile::Linux:
- process = new AlphaLinuxProcess(nm, objFile, system,
- stdin_fd, stdout_fd, stderr_fd,
- argv, envp);
+ process = new AlphaLinuxProcess(params, objFile);
break;
default:
fatal("Unknown/unsupported operating system.");
}
#elif THE_ISA == SPARC_ISA
- if (objFile->getArch() != ObjectFile::SPARC)
+ if (objFile->getArch() != ObjectFile::SPARC64 && objFile->getArch() != ObjectFile::SPARC32)
fatal("Object file architecture does not match compiled ISA (SPARC).");
switch (objFile->getOpSys()) {
case ObjectFile::Linux:
- process = new SparcLinuxProcess(nm, objFile, system,
- stdin_fd, stdout_fd, stderr_fd,
- argv, envp);
+ if (objFile->getArch() == ObjectFile::SPARC64) {
+ process = new Sparc64LinuxProcess(params, objFile);
+ } else {
+ process = new Sparc32LinuxProcess(params, objFile);
+ }
break;
case ObjectFile::Solaris:
- process = new SparcSolarisProcess(nm, objFile, system,
- stdin_fd, stdout_fd, stderr_fd,
- argv, envp);
+ process = new SparcSolarisProcess(params, objFile);
+ break;
+ default:
+ fatal("Unknown/unsupported operating system.");
+ }
+#elif THE_ISA == X86_ISA
+ if (objFile->getArch() != ObjectFile::X86)
+ fatal("Object file architecture does not match compiled ISA (x86).");
+ switch (objFile->getOpSys()) {
+ case ObjectFile::Linux:
+ process = new X86LinuxProcess(params, objFile);
break;
default:
fatal("Unknown/unsupported operating system.");
fatal("Object file architecture does not match compiled ISA (MIPS).");
switch (objFile->getOpSys()) {
case ObjectFile::Linux:
- process = new MipsLinuxProcess(nm, objFile, system,
- stdin_fd, stdout_fd, stderr_fd,
- argv, envp);
+ process = new MipsLinuxProcess(params, objFile);
+ break;
+
+ default:
+ fatal("Unknown/unsupported operating system.");
+ }
+#elif THE_ISA == ARM_ISA
+ if (objFile->getArch() != ObjectFile::Arm)
+ fatal("Object file architecture does not match compiled ISA (ARM).");
+ switch (objFile->getOpSys()) {
+ case ObjectFile::Linux:
+ process = new ArmLinuxProcess(params, objFile);
break;
default:
return process;
}
-
-BEGIN_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
-
- VectorParam<string> cmd;
- Param<string> executable;
- Param<string> input;
- Param<string> output;
- VectorParam<string> env;
- SimObjectParam<System *> system;
-
-END_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
-
-
-BEGIN_INIT_SIM_OBJECT_PARAMS(LiveProcess)
-
- 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(LiveProcess)
-
-
-CREATE_SIM_OBJECT(LiveProcess)
+LiveProcess *
+LiveProcessParams::create()
{
- 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 LiveProcess::create(getInstanceName(), system,
- stdin_fd, stdout_fd, stderr_fd,
- (string)executable == "" ? cmd[0] : executable,
- cmd, env);
+ return LiveProcess::create(this);
}
-
-
-REGISTER_SIM_OBJECT("LiveProcess", LiveProcess)
projects / gem5.git / blobdiff