* 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.
+ *
+ * Authors: Nathan Binkert
+ * Steve Reinhardt
+ * Ali Saidi
*/
#include <unistd.h>
#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 "cpu/exec_context.hh"
+#include "cpu/thread_context.hh"
#include "mem/page_table.hh"
#include "mem/physical.hh"
#include "mem/translating_port.hh"
-#include "sim/builder.hh"
+#include "params/LiveProcess.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"
+#elif THE_ISA == SPARC_ISA
+#include "arch/sparc/linux/process.hh"
+#include "arch/sparc/solaris/process.hh"
+#elif THE_ISA == MIPS_ISA
+#include "arch/mips/linux/process.hh"
+#elif THE_ISA == X86_ISA
+#include "arch/x86/linux/process.hh"
+#else
+#error "THE_ISA not set"
+#endif
+
+
using namespace std;
using namespace TheISA;
int
-Process::registerExecContext(ExecContext *xc)
+Process::registerThreadContext(ThreadContext *tc)
{
// add to list
- int myIndex = execContexts.size();
- execContexts.push_back(xc);
+ 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;
void
Process::startup()
{
- if (execContexts.empty())
+ if (threadContexts.empty())
fatal("Process %s is not associated with any CPUs!\n", name());
- // first exec context for this process... initialize & enable
- ExecContext *xc = execContexts[0];
+ // first thread context for this process... initialize & enable
+ ThreadContext *tc = threadContexts[0];
// mark this context as active so it will start ticking.
- xc->activate(0);
+ tc->activate(0);
Port *mem_port;
mem_port = system->physmem->getPort("functional");
- initVirtMem = new TranslatingPort(pTable, true);
+ initVirtMem = new TranslatingPort("process init port", this,
+ TranslatingPort::Always);
mem_port->setPeer(initVirtMem);
initVirtMem->setPeer(mem_port);
}
void
-Process::replaceExecContext(ExecContext *xc, int xcIndex)
+Process::replaceThreadContext(ThreadContext *tc, int tcIndex)
{
- if (xcIndex >= execContexts.size()) {
- panic("replaceExecContext: bad xcIndex, %d >= %d\n",
- xcIndex, execContexts.size());
+ if (tcIndex >= threadContexts.size()) {
+ panic("replaceThreadContext: bad tcIndex, %d >= %d\n",
+ tcIndex, threadContexts.size());
}
- execContexts[xcIndex] = xc;
+ threadContexts[tcIndex] = tc;
}
// map simulator fd sim_fd to target fd tgt_fd
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;
+ }
+ // We've accessed the next page of the stack, so extend the stack
+ // to cover it.
+ if(vaddr < stack_min && vaddr >= stack_min - TheISA::PageBytes)
+ {
+ stack_min -= TheISA::PageBytes;
+ 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;
+}
-//
-// 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)
+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);
+ SERIALIZE_ARRAY(fd_map, MAX_FD);
+
+ pTable->serialize(os);
+}
+
+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);
+ UNSERIALIZE_ARRAY(fd_map, MAX_FD);
+
+ pTable->unserialize(cp, section);
+}
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
-void
-copyStringArray(vector<string> &strings, Addr array_ptr, Addr data_ptr,
- TranslatingPort* memPort)
-{
- 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;
- }
- // 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)
+ vector<string> &_argv, vector<string> &_envp,
+ const string &_cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid)
: Process(nm, _system, stdin_fd, stdout_fd, stderr_fd),
- objFile(_objFile), argv(_argv), envp(_envp)
+ objFile(_objFile), argv(_argv), envp(_envp), cwd(_cwd)
{
+ __uid = _uid;
+ __euid = _euid;
+ __gid = _gid;
+ __egid = _egid;
+ __pid = _pid;
+ __ppid = _ppid;
+
prog_fname = argv[0];
// load up symbols, if any... these may be used for debugging or
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;
// align it
- stack_min &= ~(intSize-1);
+ stack_min = roundDown(stack_min, pageSize);
stack_size = stack_base - stack_min;
// map memory
- pTable->allocate(roundDown(stack_min, pageSize),
- roundUp(stack_size, pageSize));
+ pTable->allocate(stack_min, roundUp(stack_size, pageSize));
// map out initial stack contents
Addr argv_array_base = stack_min + intSize; // room for argc
copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem);
copyStringArray(envp, envp_array_base, env_data_base, initVirtMem);
- execContexts[0]->setIntReg(ArgumentReg0, argc);
- execContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
- execContexts[0]->setIntReg(StackPointerReg, stack_min);
+ threadContexts[0]->setIntReg(ArgumentReg0, argc);
+ threadContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
+ threadContexts[0]->setIntReg(StackPointerReg, stack_min);
Addr prog_entry = objFile->entryPoint();
- execContexts[0]->setPC(prog_entry);
- execContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
- execContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
+ 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, ExecContext *xc)
+LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
{
num_syscalls++;
if (desc == NULL)
fatal("Syscall %d out of range", callnum);
- desc->doSyscall(callnum, this, xc);
+ desc->doSyscall(callnum, this, tc);
+}
+
+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,
+ const std::string &cwd,
+ uint64_t _uid, uint64_t _euid,
+ uint64_t _gid, uint64_t _egid,
+ uint64_t _pid, uint64_t _ppid)
+{
+ LiveProcess *process = NULL;
+
+ 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->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, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid);
+ break;
+
+ case ObjectFile::Linux:
+ process = new AlphaLinuxProcess(nm, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid);
+ break;
+
+ default:
+ fatal("Unknown/unsupported operating system.");
+ }
+#elif THE_ISA == SPARC_ISA
+ 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:
+ if (objFile->getArch() == ObjectFile::SPARC64) {
+ process = new Sparc64LinuxProcess(nm, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid,
+ _egid, _pid, _ppid);
+ } else {
+ process = new Sparc32LinuxProcess(nm, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid,
+ _egid, _pid, _ppid);
+ }
+ break;
+
+
+ case ObjectFile::Solaris:
+ process = new SparcSolarisProcess(nm, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid);
+ 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(nm, objFile, system,
+ stdin_fd, stdout_fd, stderr_fd,
+ argv, envp, cwd,
+ _uid, _euid, _gid,
+ _egid, _pid, _ppid);
+ break;
+ default:
+ fatal("Unknown/unsupported operating system.");
+ }
+#elif THE_ISA == MIPS_ISA
+ if (objFile->getArch() != ObjectFile::Mips)
+ 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, cwd,
+ _uid, _euid, _gid, _egid, _pid, _ppid);
+ break;
+
+ default:
+ fatal("Unknown/unsupported operating system.");
+ }
+#else
+#error "THE_ISA not set"
+#endif
+
+
+ if (process == NULL)
+ fatal("Unknown error creating process object.");
+ return process;
}
-DEFINE_SIM_OBJECT_CLASS_NAME("LiveProcess", 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(name, system,
+ stdin_fd, stdout_fd, stderr_fd,
+ (string)executable == "" ? cmd[0] : executable,
+ cmd, env, cwd,
+ uid, euid, gid, egid, pid, ppid);
+}
projects / gem5.git / blobdiff