Merge zizzer:/bk/m5 into isabel.reinhardt.house:/z/stever/bk/m5

--HG--
extra : convert_revision : d66ebc598fdcfc9477ea5a1e455b21d7b9e56936

19 files changed, 2602 insertions, 993 deletions

diff --git a/arch/alpha/alpha_linux_process.cc b/arch/alpha/alpha_linux_process.cc
new file mode 100644
index 000000000..13d1f5366
--- /dev/null
+++ b/arch/alpha/alpha_linux_process.cc
@@ -0,0 +1,839 @@
+/*
+ * Copyright (c) 2003 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 <errno.h>
+#include <unistd.h>
+#include <fcntl.h>	// for host open() flags
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>	// for memset()
+#include <dirent.h>
+
+#include "sim/host.hh"
+#include "cpu/base_cpu.hh"
+#include "mem/functional_mem/functional_memory.hh"
+#include "sim/process.hh"
+#include "cpu/exec_context.hh"
+#include "sim/fake_syscall.hh"
+#include "sim/sim_events.hh"
+
+#include "sim/syscall_emul.hh"
+#include "arch/alpha/alpha_common_syscall_emul.hh"
+#include "sim/universe.hh"	// for curTick & ticksPerSecond
+
+#include "arch/alpha/alpha_linux_process.hh"
+
+#include "base/trace.hh"
+
+using namespace std;
+
+class Linux {
+
+public:
+
+//
+// basic Linux types
+//
+
+typedef uint64_t size_t;
+typedef uint64_t off_t;
+typedef int64_t time_t;
+typedef uint32_t uid_t;
+typedef uint32_t gid_t;
+
+// open(2) flags
+static const int TGT_O_RDONLY	 = 00000000;
+static const int TGT_O_WRONLY	 = 00000001;
+static const int TGT_O_RDWR	 = 00000002;
+static const int TGT_O_NONBLOCK  = 00000004;
+static const int TGT_O_APPEND	 = 00000010;
+static const int TGT_O_CREAT	 = 00001000;
+static const int TGT_O_TRUNC	 = 00002000;
+static const int TGT_O_EXCL	 = 00004000;
+static const int TGT_O_NOCTTY	 = 00010000;
+static const int TGT_O_SYNC	 = 00040000;
+static const int TGT_O_DRD	 = 00100000;
+static const int TGT_O_DIRECTIO  = 00200000;
+static const int TGT_O_CACHE	 = 00400000;
+static const int TGT_O_DSYNC	 = 02000000;
+static const int TGT_O_RSYNC	 = 04000000;
+
+static OpenFlagTransTable openFlagTable[];
+static const int NUM_OPEN_FLAGS;
+
+//
+// Stat buffer.
+//
+
+struct tgt_stat {
+    uint32_t	st_dev;
+    uint32_t	st_ino;
+    uint32_t	st_mode;
+    uint32_t	st_nlink;
+    uint32_t	st_uid;
+    uint32_t	st_gid;
+    uint32_t	st_rdev;
+    int64_t	st_size;
+    uint64_t	st_atimeX;
+    uint64_t	st_mtimeX;
+    uint64_t	st_ctimeX;
+    uint32_t	st_blksize;
+    int32_t	st_blocks;
+    uint32_t	st_flags;
+    uint32_t	st_gen;
+};
+
+
+//
+// for uname()
+//
+
+static const int _SYS_NMLN = 65;
+
+struct utsname {
+    char sysname[_SYS_NMLN];
+    char nodename[_SYS_NMLN];
+    char release[_SYS_NMLN];
+    char version[_SYS_NMLN];
+    char machine[_SYS_NMLN];
+};
+
+
+//
+// for ioctl()
+//
+
+static const unsigned TIOCGETP   = 0x40067408;
+static const unsigned TIOCSETP   = 0x80067409;
+static const unsigned TIOCSETN   = 0x8006740a;
+static const unsigned TIOCSETC   = 0x80067411;
+static const unsigned TIOCGETC   = 0x40067412;
+static const unsigned FIONREAD   = 0x4004667f;
+static const unsigned TIOCISATTY = 0x2000745e;
+
+//
+// for getrlimit()
+//
+
+enum rlimit_resources {
+    RLIMIT_CPU = 0,
+    RLIMIT_FSIZE = 1,
+    RLIMIT_DATA = 2,
+    RLIMIT_STACK = 3,
+    RLIMIT_CORE = 4,
+    RLIMIT_RSS = 5,
+    RLIMIT_NOFILE = 6,
+    RLIMIT_AS = 7,
+    RLIMIT_VMEM = 7,
+    RLIMIT_NPROC = 8,
+    RLIMIT_MEMLOCK = 9,
+    RLIMIT_LOCKS = 10
+};
+
+struct rlimit {
+    uint64_t  rlim_cur;	// soft limit
+    uint64_t  rlim_max;	// hard limit
+};
+
+
+//
+// for mmap()
+//
+    static const unsigned TGT_MAP_ANONYMOUS = 0x10;
+
+//
+// for gettimeofday
+//
+
+struct timeval {
+    int64_t tv_sec;
+    int64_t tv_usec;
+};
+
+//
+// for getrusage
+//
+
+
+static const int RUSAGE_SELF = 0;
+static const int RUSAGE_CHILDREN = -1;
+static const int RUSAGE_BOTH = -2;
+
+struct rusage {
+     struct timeval ru_utime;	// user time used
+     struct timeval ru_stime;	// system time used
+     int64_t ru_maxrss;
+     int64_t ru_ixrss;		// integral shared memory size
+     int64_t ru_idrss;		// integral unshared data "
+     int64_t ru_isrss;		// integral unshared stack "
+     int64_t ru_minflt;		// page reclaims - total vmfaults
+     int64_t ru_majflt;		// page faults
+     int64_t ru_nswap;		// swaps
+     int64_t ru_inblock;	// block input operations
+     int64_t ru_oublock;	// block output operations
+     int64_t ru_msgsnd;		// messages sent
+     int64_t ru_msgrcv;		// messages received
+     int64_t ru_nsignals;	// signals received
+     int64_t ru_nvcsw;		// voluntary context switches
+     int64_t ru_nivcsw;		// involuntary "
+};
+
+static
+void
+copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
+{
+    TypedBufferArg<Linux::tgt_stat> tgt(addr);
+
+    tgt->st_dev = host->st_dev;
+    tgt->st_ino = host->st_ino;
+    tgt->st_mode = host->st_mode;
+    tgt->st_nlink = host->st_nlink;
+    tgt->st_uid = host->st_uid;
+    tgt->st_gid = host->st_gid;
+    tgt->st_rdev = host->st_rdev;
+    tgt->st_size = host->st_size;
+    tgt->st_atimeX = host->st_atime;
+    tgt->st_mtimeX = host->st_mtime;
+    tgt->st_ctimeX = host->st_ctime;
+    tgt->st_blksize = host->st_blksize;
+    tgt->st_blocks = host->st_blocks;
+
+    tgt.copyOut(mem);
+}
+
+
+static const char *hostname;
+
+static
+int
+unameFunc(SyscallDesc *desc, int callnum, Process *process,
+          ExecContext *xc)
+{
+    TypedBufferArg<Linux::utsname> name(xc->getSyscallArg(0));
+
+    strcpy(name->sysname, "Linux");
+    strcpy(name->nodename, hostname);
+    strcpy(name->release, "2.4.20");
+    strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
+    strcpy(name->machine, "alpha");
+
+    name.copyOut(xc->mem);
+    return 0;
+}
+
+
+static
+int
+osf_getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
+                   ExecContext *xc)
+{
+    unsigned op = xc->getSyscallArg(0);
+    // unsigned nbytes = xc->getSyscallArg(2);
+
+    switch (op) {
+
+      case 45: { // GSI_IEEE_FP_CONTROL
+          TypedBufferArg<uint64_t> fpcr(xc->getSyscallArg(1));
+          // I don't think this exactly matches the HW FPCR
+          *fpcr = 0;
+          fpcr.copyOut(xc->mem);
+          return 1;
+      }
+
+      default:
+        cerr << "osf_getsysinfo: unknown op " << op << endl;
+        abort();
+        break;
+    }
+
+    return 0;
+}
+
+
+static
+int
+osf_setsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
+                   ExecContext *xc)
+{
+    unsigned op = xc->getSyscallArg(0);
+    // unsigned nbytes = xc->getSyscallArg(2);
+
+    switch (op) {
+
+      case 14: { // SSI_IEEE_FP_CONTROL
+          TypedBufferArg<uint64_t> fpcr(xc->getSyscallArg(1));
+          // I don't think this exactly matches the HW FPCR
+          fpcr.copyIn(xc->mem);
+          DPRINTFR(SyscallVerbose, "osf_setsysinfo(SSI_IEEE_FP_CONTROL): "
+                   " setting FPCR to 0x%x\n", *(uint64_t*)fpcr);
+          return 1;
+      }
+
+      default:
+        cerr << "osf_getsysinfo: unknown op " << op << endl;
+        abort();
+        break;
+    }
+
+    return 0;
+}
+
+
+static
+int
+fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
+           ExecContext *xc)
+{
+    int fd = xc->getSyscallArg(0);
+
+    if (fd < 0 || process->sim_fd(fd) < 0)
+        return -EBADF;
+
+    int cmd = xc->getSyscallArg(1);
+    switch (cmd) {
+      case 0: // F_DUPFD
+        // if we really wanted to support this, we'd need to do it
+        // in the target fd space.
+        warn("fcntl(%d, F_DUPFD) not supported, error returned\n", fd);
+        return -EMFILE;
+
+      case 1: // F_GETFD (get close-on-exec flag)
+      case 2: // F_SETFD (set close-on-exec flag)
+        return 0;
+
+      case 3: // F_GETFL (get file flags)
+      case 4: // F_SETFL (set file flags)
+        // not sure if this is totally valid, but we'll pass it through
+        // to the underlying OS
+        warn("fcntl(%d, %d) passed through to host\n", fd, cmd);
+        return fcntl(process->sim_fd(fd), cmd);
+        // return 0;
+
+      case 7: // F_GETLK  (get lock)
+      case 8: // F_SETLK  (set lock)
+      case 9: // F_SETLKW (set lock and wait)
+        // don't mess with file locking... just act like it's OK
+        warn("File lock call (fcntl(%d, %d)) ignored.\n", fd, cmd);
+        return 0;
+
+      default:
+        warn("Unknown fcntl command %d\n", cmd);
+        return 0;
+    }
+}
+
+static SyscallDesc syscallDescs[];
+
+static const int Num_Syscall_Descs;
+
+static const int Max_Syscall_Desc;
+
+static
+void
+doSyscall(int callnum, Process *process, ExecContext *xc)
+{
+    if (callnum < 0 || callnum > Max_Syscall_Desc) {
+        fatal("Syscall %d out of range", callnum);
+    }
+
+    SyscallDesc *desc = &syscallDescs[callnum];
+
+    desc->doSyscall(callnum, process, xc);
+}
+
+
+};  // class Linux
+
+
+// open(2) flags translation table
+OpenFlagTransTable Linux::openFlagTable[] = {
+  /* target flag */	/* host flag */
+#ifdef _MSC_VER
+  { Linux::TGT_O_RDONLY,	_O_RDONLY },
+  { Linux::TGT_O_WRONLY,	_O_WRONLY },
+  { Linux::TGT_O_RDWR,		_O_RDWR },
+  { Linux::TGT_O_APPEND,	_O_APPEND },
+  { Linux::TGT_O_CREAT,		_O_CREAT },
+  { Linux::TGT_O_TRUNC,		_O_TRUNC },
+  { Linux::TGT_O_EXCL,		_O_EXCL },
+#ifdef _O_NONBLOCK
+  { Linux::TGT_O_NONBLOCK,	_O_NONBLOCK },
+#endif
+#ifdef _O_NOCTTY
+  { Linux::TGT_O_NOCTTY,	_O_NOCTTY },
+#endif
+#ifdef _O_SYNC
+  { Linux::TGT_O_SYNC,		_O_SYNC },
+#endif
+#else /* !_MSC_VER */
+  { Linux::TGT_O_RDONLY,	O_RDONLY },
+  { Linux::TGT_O_WRONLY,	O_WRONLY },
+  { Linux::TGT_O_RDWR,		O_RDWR },
+  { Linux::TGT_O_APPEND,	O_APPEND },
+  { Linux::TGT_O_CREAT,		O_CREAT },
+  { Linux::TGT_O_TRUNC,		O_TRUNC },
+  { Linux::TGT_O_EXCL,		O_EXCL },
+  { Linux::TGT_O_NONBLOCK,	O_NONBLOCK },
+  { Linux::TGT_O_NOCTTY,	O_NOCTTY },
+#ifdef O_SYNC
+  { Linux::TGT_O_SYNC,		O_SYNC },
+#endif
+#endif /* _MSC_VER */
+};
+
+const int Linux::NUM_OPEN_FLAGS = (sizeof(Linux::openFlagTable)/sizeof(Linux::openFlagTable[0]));
+
+const char *Linux::hostname = "m5.eecs.umich.edu";
+
+SyscallDesc Linux::syscallDescs[] = {
+    /*  0 */ SyscallDesc("osf_syscall", unimplementedFunc),
+    /*  1 */ SyscallDesc("exit", exitFunc),
+    /*  2 */ SyscallDesc("fork", unimplementedFunc),
+    /*  3 */ SyscallDesc("read", readFunc),
+    /*  4 */ SyscallDesc("write", writeFunc),
+    /*  5 */ SyscallDesc("osf_old_open", unimplementedFunc),
+    /*  6 */ SyscallDesc("close", closeFunc),
+    /*  7 */ SyscallDesc("osf_wait4", unimplementedFunc),
+    /*  8 */ SyscallDesc("osf_old_creat", unimplementedFunc),
+    /*  9 */ SyscallDesc("link", unimplementedFunc),
+    /* 10 */ SyscallDesc("unlink", unimplementedFunc),
+    /* 11 */ SyscallDesc("osf_execve", unimplementedFunc),
+    /* 12 */ SyscallDesc("chdir", unimplementedFunc),
+    /* 13 */ SyscallDesc("fchdir", unimplementedFunc),
+    /* 14 */ SyscallDesc("mknod", unimplementedFunc),
+    /* 15 */ SyscallDesc("chmod", unimplementedFunc),
+    /* 16 */ SyscallDesc("chown", unimplementedFunc),
+    /* 17 */ SyscallDesc("brk", obreakFunc),
+    /* 18 */ SyscallDesc("osf_getfsstat", unimplementedFunc),
+    /* 19 */ SyscallDesc("lseek", lseekFunc),
+    /* 20 */ SyscallDesc("getxpid", getpidFunc),
+    /* 21 */ SyscallDesc("osf_mount", unimplementedFunc),
+    /* 22 */ SyscallDesc("umount", unimplementedFunc),
+    /* 23 */ SyscallDesc("setuid", setuidFunc),
+    /* 24 */ SyscallDesc("getxuid", getuidFunc),
+    /* 25 */ SyscallDesc("exec_with_loader", unimplementedFunc),
+    /* 26 */ SyscallDesc("osf_ptrace", unimplementedFunc),
+    /* 27 */ SyscallDesc("osf_nrecvmsg", unimplementedFunc),
+    /* 28 */ SyscallDesc("osf_nsendmsg", unimplementedFunc),
+    /* 29 */ SyscallDesc("osf_nrecvfrom", unimplementedFunc),
+    /* 30 */ SyscallDesc("osf_naccept", unimplementedFunc),
+    /* 31 */ SyscallDesc("osf_ngetpeername", unimplementedFunc),
+    /* 32 */ SyscallDesc("osf_ngetsockname", unimplementedFunc),
+    /* 33 */ SyscallDesc("access", unimplementedFunc),
+    /* 34 */ SyscallDesc("osf_chflags", unimplementedFunc),
+    /* 35 */ SyscallDesc("osf_fchflags", unimplementedFunc),
+    /* 36 */ SyscallDesc("sync", unimplementedFunc),
+    /* 37 */ SyscallDesc("kill", unimplementedFunc),
+    /* 38 */ SyscallDesc("osf_old_stat", unimplementedFunc),
+    /* 39 */ SyscallDesc("setpgid", unimplementedFunc),
+    /* 40 */ SyscallDesc("osf_old_lstat", unimplementedFunc),
+    /* 41 */ SyscallDesc("dup", unimplementedFunc),
+    /* 42 */ SyscallDesc("pipe", unimplementedFunc),
+    /* 43 */ SyscallDesc("osf_set_program_attributes", unimplementedFunc),
+    /* 44 */ SyscallDesc("osf_profil", unimplementedFunc),
+    /* 45 */ SyscallDesc("open", openFunc<Linux>),
+    /* 46 */ SyscallDesc("osf_old_sigaction", unimplementedFunc),
+    /* 47 */ SyscallDesc("getxgid", getgidFunc),
+    /* 48 */ SyscallDesc("osf_sigprocmask", ignoreFunc),
+    /* 49 */ SyscallDesc("osf_getlogin", unimplementedFunc),
+    /* 50 */ SyscallDesc("osf_setlogin", unimplementedFunc),
+    /* 51 */ SyscallDesc("acct", unimplementedFunc),
+    /* 52 */ SyscallDesc("sigpending", unimplementedFunc),
+    /* 53 */ SyscallDesc("osf_classcntl", unimplementedFunc),
+    /* 54 */ SyscallDesc("ioctl", ioctlFunc<Linux>),
+    /* 55 */ SyscallDesc("osf_reboot", unimplementedFunc),
+    /* 56 */ SyscallDesc("osf_revoke", unimplementedFunc),
+    /* 57 */ SyscallDesc("symlink", unimplementedFunc),
+    /* 58 */ SyscallDesc("readlink", unimplementedFunc),
+    /* 59 */ SyscallDesc("execve", unimplementedFunc),
+    /* 60 */ SyscallDesc("umask", unimplementedFunc),
+    /* 61 */ SyscallDesc("chroot", unimplementedFunc),
+    /* 62 */ SyscallDesc("osf_old_fstat", unimplementedFunc),
+    /* 63 */ SyscallDesc("getpgrp", unimplementedFunc),
+    /* 64 */ SyscallDesc("getpagesize", getpagesizeFunc),
+    /* 65 */ SyscallDesc("osf_mremap", unimplementedFunc),
+    /* 66 */ SyscallDesc("vfork", unimplementedFunc),
+    /* 67 */ SyscallDesc("stat", statFunc<Linux>),
+    /* 68 */ SyscallDesc("lstat", lstatFunc<Linux>),
+    /* 69 */ SyscallDesc("osf_sbrk", unimplementedFunc),
+    /* 70 */ SyscallDesc("osf_sstk", unimplementedFunc),
+    /* 71 */ SyscallDesc("mmap", mmapFunc<Linux>),
+    /* 72 */ SyscallDesc("osf_old_vadvise", unimplementedFunc),
+    /* 73 */ SyscallDesc("munmap", munmapFunc),
+    /* 74 */ SyscallDesc("mprotect", ignoreFunc),
+    /* 75 */ SyscallDesc("madvise", unimplementedFunc),
+    /* 76 */ SyscallDesc("vhangup", unimplementedFunc),
+    /* 77 */ SyscallDesc("osf_kmodcall", unimplementedFunc),
+    /* 78 */ SyscallDesc("osf_mincore", unimplementedFunc),
+    /* 79 */ SyscallDesc("getgroups", unimplementedFunc),
+    /* 80 */ SyscallDesc("setgroups", unimplementedFunc),
+    /* 81 */ SyscallDesc("osf_old_getpgrp", unimplementedFunc),
+    /* 82 */ SyscallDesc("setpgrp", unimplementedFunc),
+    /* 83 */ SyscallDesc("osf_setitimer", unimplementedFunc),
+    /* 84 */ SyscallDesc("osf_old_wait", unimplementedFunc),
+    /* 85 */ SyscallDesc("osf_table", unimplementedFunc),
+    /* 86 */ SyscallDesc("osf_getitimer", unimplementedFunc),
+    /* 87 */ SyscallDesc("gethostname", gethostnameFunc),
+    /* 88 */ SyscallDesc("sethostname", unimplementedFunc),
+    /* 89 */ SyscallDesc("getdtablesize", unimplementedFunc),
+    /* 90 */ SyscallDesc("dup2", unimplementedFunc),
+    /* 91 */ SyscallDesc("fstat", fstatFunc<Linux>),
+    /* 92 */ SyscallDesc("fcntl", fcntlFunc),
+    /* 93 */ SyscallDesc("osf_select", unimplementedFunc),
+    /* 94 */ SyscallDesc("poll", unimplementedFunc),
+    /* 95 */ SyscallDesc("fsync", unimplementedFunc),
+    /* 96 */ SyscallDesc("setpriority", unimplementedFunc),
+    /* 97 */ SyscallDesc("socket", unimplementedFunc),
+    /* 98 */ SyscallDesc("connect", unimplementedFunc),
+    /* 99 */ SyscallDesc("accept", unimplementedFunc),
+    /* 100 */ SyscallDesc("getpriority", unimplementedFunc),
+    /* 101 */ SyscallDesc("send", unimplementedFunc),
+    /* 102 */ SyscallDesc("recv", unimplementedFunc),
+    /* 103 */ SyscallDesc("sigreturn", unimplementedFunc),
+    /* 104 */ SyscallDesc("bind", unimplementedFunc),
+    /* 105 */ SyscallDesc("setsockopt", unimplementedFunc),
+    /* 106 */ SyscallDesc("listen", unimplementedFunc),
+    /* 107 */ SyscallDesc("osf_plock", unimplementedFunc),
+    /* 108 */ SyscallDesc("osf_old_sigvec", unimplementedFunc),
+    /* 109 */ SyscallDesc("osf_old_sigblock", unimplementedFunc),
+    /* 110 */ SyscallDesc("osf_old_sigsetmask", unimplementedFunc),
+    /* 111 */ SyscallDesc("sigsuspend", unimplementedFunc),
+    /* 112 */ SyscallDesc("osf_sigstack", ignoreFunc),
+    /* 113 */ SyscallDesc("recvmsg", unimplementedFunc),
+    /* 114 */ SyscallDesc("sendmsg", unimplementedFunc),
+    /* 115 */ SyscallDesc("osf_old_vtrace", unimplementedFunc),
+    /* 116 */ SyscallDesc("osf_gettimeofday", unimplementedFunc),
+    /* 117 */ SyscallDesc("osf_getrusage", unimplementedFunc),
+    /* 118 */ SyscallDesc("getsockopt", unimplementedFunc),
+    /* 119 */ SyscallDesc("numa_syscalls", unimplementedFunc),
+    /* 120 */ SyscallDesc("readv", unimplementedFunc),
+    /* 121 */ SyscallDesc("writev", unimplementedFunc),
+    /* 122 */ SyscallDesc("osf_settimeofday", unimplementedFunc),
+    /* 123 */ SyscallDesc("fchown", unimplementedFunc),
+    /* 124 */ SyscallDesc("fchmod", unimplementedFunc),
+    /* 125 */ SyscallDesc("recvfrom", unimplementedFunc),
+    /* 126 */ SyscallDesc("setreuid", unimplementedFunc),
+    /* 127 */ SyscallDesc("setregid", unimplementedFunc),
+    /* 128 */ SyscallDesc("rename", unimplementedFunc),
+    /* 129 */ SyscallDesc("truncate", unimplementedFunc),
+    /* 130 */ SyscallDesc("ftruncate", unimplementedFunc),
+    /* 131 */ SyscallDesc("flock", unimplementedFunc),
+    /* 132 */ SyscallDesc("setgid", unimplementedFunc),
+    /* 133 */ SyscallDesc("sendto", unimplementedFunc),
+    /* 134 */ SyscallDesc("shutdown", unimplementedFunc),
+    /* 135 */ SyscallDesc("socketpair", unimplementedFunc),
+    /* 136 */ SyscallDesc("mkdir", unimplementedFunc),
+    /* 137 */ SyscallDesc("rmdir", unimplementedFunc),
+    /* 138 */ SyscallDesc("osf_utimes", unimplementedFunc),
+    /* 139 */ SyscallDesc("osf_old_sigreturn", unimplementedFunc),
+    /* 140 */ SyscallDesc("osf_adjtime", unimplementedFunc),
+    /* 141 */ SyscallDesc("getpeername", unimplementedFunc),
+    /* 142 */ SyscallDesc("osf_gethostid", unimplementedFunc),
+    /* 143 */ SyscallDesc("osf_sethostid", unimplementedFunc),
+    /* 144 */ SyscallDesc("getrlimit", getrlimitFunc<Linux>),
+    /* 145 */ SyscallDesc("setrlimit", unimplementedFunc),
+    /* 146 */ SyscallDesc("osf_old_killpg", unimplementedFunc),
+    /* 147 */ SyscallDesc("setsid", unimplementedFunc),
+    /* 148 */ SyscallDesc("quotactl", unimplementedFunc),
+    /* 149 */ SyscallDesc("osf_oldquota", unimplementedFunc),
+    /* 150 */ SyscallDesc("getsockname", unimplementedFunc),
+    /* 151 */ SyscallDesc("osf_pread", unimplementedFunc),
+    /* 152 */ SyscallDesc("osf_pwrite", unimplementedFunc),
+    /* 153 */ SyscallDesc("osf_pid_block", unimplementedFunc),
+    /* 154 */ SyscallDesc("osf_pid_unblock", unimplementedFunc),
+    /* 155 */ SyscallDesc("osf_signal_urti", unimplementedFunc),
+    /* 156 */ SyscallDesc("sigaction", ignoreFunc),
+    /* 157 */ SyscallDesc("osf_sigwaitprim", unimplementedFunc),
+    /* 158 */ SyscallDesc("osf_nfssvc", unimplementedFunc),
+    /* 159 */ SyscallDesc("osf_getdirentries", unimplementedFunc),
+    /* 160 */ SyscallDesc("osf_statfs", unimplementedFunc),
+    /* 161 */ SyscallDesc("osf_fstatfs", unimplementedFunc),
+    /* 162 */ SyscallDesc("unknown #162", unimplementedFunc),
+    /* 163 */ SyscallDesc("osf_async_daemon", unimplementedFunc),
+    /* 164 */ SyscallDesc("osf_getfh", unimplementedFunc),
+    /* 165 */ SyscallDesc("osf_getdomainname", unimplementedFunc),
+    /* 166 */ SyscallDesc("setdomainname", unimplementedFunc),
+    /* 167 */ SyscallDesc("unknown #167", unimplementedFunc),
+    /* 168 */ SyscallDesc("unknown #168", unimplementedFunc),
+    /* 169 */ SyscallDesc("osf_exportfs", unimplementedFunc),
+    /* 170 */ SyscallDesc("unknown #170", unimplementedFunc),
+    /* 171 */ SyscallDesc("unknown #171", unimplementedFunc),
+    /* 172 */ SyscallDesc("unknown #172", unimplementedFunc),
+    /* 173 */ SyscallDesc("unknown #173", unimplementedFunc),
+    /* 174 */ SyscallDesc("unknown #174", unimplementedFunc),
+    /* 175 */ SyscallDesc("unknown #175", unimplementedFunc),
+    /* 176 */ SyscallDesc("unknown #176", unimplementedFunc),
+    /* 177 */ SyscallDesc("unknown #177", unimplementedFunc),
+    /* 178 */ SyscallDesc("unknown #178", unimplementedFunc),
+    /* 179 */ SyscallDesc("unknown #179", unimplementedFunc),
+    /* 180 */ SyscallDesc("unknown #180", unimplementedFunc),
+    /* 181 */ SyscallDesc("osf_alt_plock", unimplementedFunc),
+    /* 182 */ SyscallDesc("unknown #182", unimplementedFunc),
+    /* 183 */ SyscallDesc("unknown #183", unimplementedFunc),
+    /* 184 */ SyscallDesc("osf_getmnt", unimplementedFunc),
+    /* 185 */ SyscallDesc("unknown #185", unimplementedFunc),
+    /* 186 */ SyscallDesc("unknown #186", unimplementedFunc),
+    /* 187 */ SyscallDesc("osf_alt_sigpending", unimplementedFunc),
+    /* 188 */ SyscallDesc("osf_alt_setsid", unimplementedFunc),
+    /* 189 */ SyscallDesc("unknown #189", unimplementedFunc),
+    /* 190 */ SyscallDesc("unknown #190", unimplementedFunc),
+    /* 191 */ SyscallDesc("unknown #191", unimplementedFunc),
+    /* 192 */ SyscallDesc("unknown #192", unimplementedFunc),
+    /* 193 */ SyscallDesc("unknown #193", unimplementedFunc),
+    /* 194 */ SyscallDesc("unknown #194", unimplementedFunc),
+    /* 195 */ SyscallDesc("unknown #195", unimplementedFunc),
+    /* 196 */ SyscallDesc("unknown #196", unimplementedFunc),
+    /* 197 */ SyscallDesc("unknown #197", unimplementedFunc),
+    /* 198 */ SyscallDesc("unknown #198", unimplementedFunc),
+    /* 199 */ SyscallDesc("osf_swapon", unimplementedFunc),
+    /* 200 */ SyscallDesc("msgctl", unimplementedFunc),
+    /* 201 */ SyscallDesc("msgget", unimplementedFunc),
+    /* 202 */ SyscallDesc("msgrcv", unimplementedFunc),
+    /* 203 */ SyscallDesc("msgsnd", unimplementedFunc),
+    /* 204 */ SyscallDesc("semctl", unimplementedFunc),
+    /* 205 */ SyscallDesc("semget", unimplementedFunc),
+    /* 206 */ SyscallDesc("semop", unimplementedFunc),
+    /* 207 */ SyscallDesc("osf_utsname", unimplementedFunc),
+    /* 208 */ SyscallDesc("lchown", unimplementedFunc),
+    /* 209 */ SyscallDesc("osf_shmat", unimplementedFunc),
+    /* 210 */ SyscallDesc("shmctl", unimplementedFunc),
+    /* 211 */ SyscallDesc("shmdt", unimplementedFunc),
+    /* 212 */ SyscallDesc("shmget", unimplementedFunc),
+    /* 213 */ SyscallDesc("osf_mvalid", unimplementedFunc),
+    /* 214 */ SyscallDesc("osf_getaddressconf", unimplementedFunc),
+    /* 215 */ SyscallDesc("osf_msleep", unimplementedFunc),
+    /* 216 */ SyscallDesc("osf_mwakeup", unimplementedFunc),
+    /* 217 */ SyscallDesc("msync", unimplementedFunc),
+    /* 218 */ SyscallDesc("osf_signal", unimplementedFunc),
+    /* 219 */ SyscallDesc("osf_utc_gettime", unimplementedFunc),
+    /* 220 */ SyscallDesc("osf_utc_adjtime", unimplementedFunc),
+    /* 221 */ SyscallDesc("unknown #221", unimplementedFunc),
+    /* 222 */ SyscallDesc("osf_security", unimplementedFunc),
+    /* 223 */ SyscallDesc("osf_kloadcall", unimplementedFunc),
+    /* 224 */ SyscallDesc("unknown #224", unimplementedFunc),
+    /* 225 */ SyscallDesc("unknown #225", unimplementedFunc),
+    /* 226 */ SyscallDesc("unknown #226", unimplementedFunc),
+    /* 227 */ SyscallDesc("unknown #227", unimplementedFunc),
+    /* 228 */ SyscallDesc("unknown #228", unimplementedFunc),
+    /* 229 */ SyscallDesc("unknown #229", unimplementedFunc),
+    /* 230 */ SyscallDesc("unknown #230", unimplementedFunc),
+    /* 231 */ SyscallDesc("unknown #231", unimplementedFunc),
+    /* 232 */ SyscallDesc("unknown #232", unimplementedFunc),
+    /* 233 */ SyscallDesc("getpgid", unimplementedFunc),
+    /* 234 */ SyscallDesc("getsid", unimplementedFunc),
+    /* 235 */ SyscallDesc("sigaltstack", ignoreFunc),
+    /* 236 */ SyscallDesc("osf_waitid", unimplementedFunc),
+    /* 237 */ SyscallDesc("osf_priocntlset", unimplementedFunc),
+    /* 238 */ SyscallDesc("osf_sigsendset", unimplementedFunc),
+    /* 239 */ SyscallDesc("osf_set_speculative", unimplementedFunc),
+    /* 240 */ SyscallDesc("osf_msfs_syscall", unimplementedFunc),
+    /* 241 */ SyscallDesc("osf_sysinfo", unimplementedFunc),
+    /* 242 */ SyscallDesc("osf_uadmin", unimplementedFunc),
+    /* 243 */ SyscallDesc("osf_fuser", unimplementedFunc),
+    /* 244 */ SyscallDesc("osf_proplist_syscall", unimplementedFunc),
+    /* 245 */ SyscallDesc("osf_ntp_adjtime", unimplementedFunc),
+    /* 246 */ SyscallDesc("osf_ntp_gettime", unimplementedFunc),
+    /* 247 */ SyscallDesc("osf_pathconf", unimplementedFunc),
+    /* 248 */ SyscallDesc("osf_fpathconf", unimplementedFunc),
+    /* 249 */ SyscallDesc("unknown #249", unimplementedFunc),
+    /* 250 */ SyscallDesc("osf_uswitch", unimplementedFunc),
+    /* 251 */ SyscallDesc("osf_usleep_thread", unimplementedFunc),
+    /* 252 */ SyscallDesc("osf_audcntl", unimplementedFunc),
+    /* 253 */ SyscallDesc("osf_audgen", unimplementedFunc),
+    /* 254 */ SyscallDesc("sysfs", unimplementedFunc),
+    /* 255 */ SyscallDesc("osf_subsys_info", unimplementedFunc),
+    /* 256 */ SyscallDesc("osf_getsysinfo", osf_getsysinfoFunc),
+    /* 257 */ SyscallDesc("osf_setsysinfo", osf_setsysinfoFunc),
+    /* 258 */ SyscallDesc("osf_afs_syscall", unimplementedFunc),
+    /* 259 */ SyscallDesc("osf_swapctl", unimplementedFunc),
+    /* 260 */ SyscallDesc("osf_memcntl", unimplementedFunc),
+    /* 261 */ SyscallDesc("osf_fdatasync", unimplementedFunc),
+    /* 262 */ SyscallDesc("unknown #262", unimplementedFunc),
+    /* 263 */ SyscallDesc("unknown #263", unimplementedFunc),
+    /* 264 */ SyscallDesc("unknown #264", unimplementedFunc),
+    /* 265 */ SyscallDesc("unknown #265", unimplementedFunc),
+    /* 266 */ SyscallDesc("unknown #266", unimplementedFunc),
+    /* 267 */ SyscallDesc("unknown #267", unimplementedFunc),
+    /* 268 */ SyscallDesc("unknown #268", unimplementedFunc),
+    /* 269 */ SyscallDesc("unknown #269", unimplementedFunc),
+    /* 270 */ SyscallDesc("unknown #270", unimplementedFunc),
+    /* 271 */ SyscallDesc("unknown #271", unimplementedFunc),
+    /* 272 */ SyscallDesc("unknown #272", unimplementedFunc),
+    /* 273 */ SyscallDesc("unknown #273", unimplementedFunc),
+    /* 274 */ SyscallDesc("unknown #274", unimplementedFunc),
+    /* 275 */ SyscallDesc("unknown #275", unimplementedFunc),
+    /* 276 */ SyscallDesc("unknown #276", unimplementedFunc),
+    /* 277 */ SyscallDesc("unknown #277", unimplementedFunc),
+    /* 278 */ SyscallDesc("unknown #278", unimplementedFunc),
+    /* 279 */ SyscallDesc("unknown #279", unimplementedFunc),
+    /* 280 */ SyscallDesc("unknown #280", unimplementedFunc),
+    /* 281 */ SyscallDesc("unknown #281", unimplementedFunc),
+    /* 282 */ SyscallDesc("unknown #282", unimplementedFunc),
+    /* 283 */ SyscallDesc("unknown #283", unimplementedFunc),
+    /* 284 */ SyscallDesc("unknown #284", unimplementedFunc),
+    /* 285 */ SyscallDesc("unknown #285", unimplementedFunc),
+    /* 286 */ SyscallDesc("unknown #286", unimplementedFunc),
+    /* 287 */ SyscallDesc("unknown #287", unimplementedFunc),
+    /* 288 */ SyscallDesc("unknown #288", unimplementedFunc),
+    /* 289 */ SyscallDesc("unknown #289", unimplementedFunc),
+    /* 290 */ SyscallDesc("unknown #290", unimplementedFunc),
+    /* 291 */ SyscallDesc("unknown #291", unimplementedFunc),
+    /* 292 */ SyscallDesc("unknown #292", unimplementedFunc),
+    /* 293 */ SyscallDesc("unknown #293", unimplementedFunc),
+    /* 294 */ SyscallDesc("unknown #294", unimplementedFunc),
+    /* 295 */ SyscallDesc("unknown #295", unimplementedFunc),
+    /* 296 */ SyscallDesc("unknown #296", unimplementedFunc),
+    /* 297 */ SyscallDesc("unknown #297", unimplementedFunc),
+    /* 298 */ SyscallDesc("unknown #298", unimplementedFunc),
+    /* 299 */ SyscallDesc("unknown #299", unimplementedFunc),
+/*
+ * Linux-specific system calls begin at 300
+ */
+    /* 300 */ SyscallDesc("bdflush", unimplementedFunc),
+    /* 301 */ SyscallDesc("sethae", unimplementedFunc),
+    /* 302 */ SyscallDesc("mount", unimplementedFunc),
+    /* 303 */ SyscallDesc("old_adjtimex", unimplementedFunc),
+    /* 304 */ SyscallDesc("swapoff", unimplementedFunc),
+    /* 305 */ SyscallDesc("getdents", unimplementedFunc),
+    /* 306 */ SyscallDesc("create_module", unimplementedFunc),
+    /* 307 */ SyscallDesc("init_module", unimplementedFunc),
+    /* 308 */ SyscallDesc("delete_module", unimplementedFunc),
+    /* 309 */ SyscallDesc("get_kernel_syms", unimplementedFunc),
+    /* 310 */ SyscallDesc("syslog", unimplementedFunc),
+    /* 311 */ SyscallDesc("reboot", unimplementedFunc),
+    /* 312 */ SyscallDesc("clone", unimplementedFunc),
+    /* 313 */ SyscallDesc("uselib", unimplementedFunc),
+    /* 314 */ SyscallDesc("mlock", unimplementedFunc),
+    /* 315 */ SyscallDesc("munlock", unimplementedFunc),
+    /* 316 */ SyscallDesc("mlockall", unimplementedFunc),
+    /* 317 */ SyscallDesc("munlockall", unimplementedFunc),
+    /* 318 */ SyscallDesc("sysinfo", unimplementedFunc),
+    /* 319 */ SyscallDesc("_sysctl", unimplementedFunc),
+    /* 320 */ SyscallDesc("was sys_idle", unimplementedFunc),
+    /* 321 */ SyscallDesc("oldumount", unimplementedFunc),
+    /* 322 */ SyscallDesc("swapon", unimplementedFunc),
+    /* 323 */ SyscallDesc("times", unimplementedFunc),
+    /* 324 */ SyscallDesc("personality", unimplementedFunc),
+    /* 325 */ SyscallDesc("setfsuid", unimplementedFunc),
+    /* 326 */ SyscallDesc("setfsgid", unimplementedFunc),
+    /* 327 */ SyscallDesc("ustat", unimplementedFunc),
+    /* 328 */ SyscallDesc("statfs", unimplementedFunc),
+    /* 329 */ SyscallDesc("fstatfs", unimplementedFunc),
+    /* 330 */ SyscallDesc("sched_setparam", unimplementedFunc),
+    /* 331 */ SyscallDesc("sched_getparam", unimplementedFunc),
+    /* 332 */ SyscallDesc("sched_setscheduler", unimplementedFunc),
+    /* 333 */ SyscallDesc("sched_getscheduler", unimplementedFunc),
+    /* 334 */ SyscallDesc("sched_yield", unimplementedFunc),
+    /* 335 */ SyscallDesc("sched_get_priority_max", unimplementedFunc),
+    /* 336 */ SyscallDesc("sched_get_priority_min", unimplementedFunc),
+    /* 337 */ SyscallDesc("sched_rr_get_interval", unimplementedFunc),
+    /* 338 */ SyscallDesc("afs_syscall", unimplementedFunc),
+    /* 339 */ SyscallDesc("uname", unameFunc),
+    /* 340 */ SyscallDesc("nanosleep", unimplementedFunc),
+    /* 341 */ SyscallDesc("mremap", unimplementedFunc),
+    /* 342 */ SyscallDesc("nfsservctl", unimplementedFunc),
+    /* 343 */ SyscallDesc("setresuid", unimplementedFunc),
+    /* 344 */ SyscallDesc("getresuid", unimplementedFunc),
+    /* 345 */ SyscallDesc("pciconfig_read", unimplementedFunc),
+    /* 346 */ SyscallDesc("pciconfig_write", unimplementedFunc),
+    /* 347 */ SyscallDesc("query_module", unimplementedFunc),
+    /* 348 */ SyscallDesc("prctl", unimplementedFunc),
+    /* 349 */ SyscallDesc("pread", unimplementedFunc),
+    /* 350 */ SyscallDesc("pwrite", unimplementedFunc),
+    /* 351 */ SyscallDesc("rt_sigreturn", unimplementedFunc),
+    /* 352 */ SyscallDesc("rt_sigaction", unimplementedFunc),
+    /* 353 */ SyscallDesc("rt_sigprocmask", unimplementedFunc),
+    /* 354 */ SyscallDesc("rt_sigpending", unimplementedFunc),
+    /* 355 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc),
+    /* 356 */ SyscallDesc("rt_sigqueueinfo", unimplementedFunc),
+    /* 357 */ SyscallDesc("rt_sigsuspend", unimplementedFunc),
+    /* 358 */ SyscallDesc("select", unimplementedFunc),
+    /* 359 */ SyscallDesc("gettimeofday", gettimeofdayFunc<Linux>),
+    /* 360 */ SyscallDesc("settimeofday", unimplementedFunc),
+    /* 361 */ SyscallDesc("getitimer", unimplementedFunc),
+    /* 362 */ SyscallDesc("setitimer", unimplementedFunc),
+    /* 363 */ SyscallDesc("utimes", unimplementedFunc),
+    /* 364 */ SyscallDesc("getrusage", getrusageFunc<Linux>),
+    /* 365 */ SyscallDesc("wait4", unimplementedFunc),
+    /* 366 */ SyscallDesc("adjtimex", unimplementedFunc),
+    /* 367 */ SyscallDesc("getcwd", unimplementedFunc),
+    /* 368 */ SyscallDesc("capget", unimplementedFunc),
+    /* 369 */ SyscallDesc("capset", unimplementedFunc),
+    /* 370 */ SyscallDesc("sendfile", unimplementedFunc),
+    /* 371 */ SyscallDesc("setresgid", unimplementedFunc),
+    /* 372 */ SyscallDesc("getresgid", unimplementedFunc),
+    /* 373 */ SyscallDesc("dipc", unimplementedFunc),
+    /* 374 */ SyscallDesc("pivot_root", unimplementedFunc),
+    /* 375 */ SyscallDesc("mincore", unimplementedFunc),
+    /* 376 */ SyscallDesc("pciconfig_iobase", unimplementedFunc),
+    /* 377 */ SyscallDesc("getdents64", unimplementedFunc),
+    /* 378 */ SyscallDesc("gettid", unimplementedFunc),
+    /* 379 */ SyscallDesc("readahead", unimplementedFunc),
+    /* 380 */ SyscallDesc("security", unimplementedFunc),
+    /* 381 */ SyscallDesc("tkill", unimplementedFunc),
+    /* 382 */ SyscallDesc("setxattr", unimplementedFunc),
+    /* 383 */ SyscallDesc("lsetxattr", unimplementedFunc),
+    /* 384 */ SyscallDesc("fsetxattr", unimplementedFunc),
+    /* 385 */ SyscallDesc("getxattr", unimplementedFunc),
+    /* 386 */ SyscallDesc("lgetxattr", unimplementedFunc),
+    /* 387 */ SyscallDesc("fgetxattr", unimplementedFunc),
+    /* 388 */ SyscallDesc("listxattr", unimplementedFunc),
+    /* 389 */ SyscallDesc("llistxattr", unimplementedFunc),
+    /* 390 */ SyscallDesc("flistxattr", unimplementedFunc),
+    /* 391 */ SyscallDesc("removexattr", unimplementedFunc),
+    /* 392 */ SyscallDesc("lremovexattr", unimplementedFunc),
+    /* 393 */ SyscallDesc("fremovexattr", unimplementedFunc),
+};
+
+const int Linux::Num_Syscall_Descs =
+        sizeof(Linux::syscallDescs) / sizeof(SyscallDesc);
+
+const int Linux::Max_Syscall_Desc = Linux::Num_Syscall_Descs - 1;
+
+
+void
+AlphaLinuxProcess::syscall(ExecContext *xc)
+{
+    num_syscalls++;
+
+    int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
+
+    Linux::doSyscall(callnum, this, xc);
+}
+
+
+AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name,
+                                     ObjectFile *objFile,
+                                     int stdin_fd,
+                                     int stdout_fd,
+                                     int stderr_fd,
+                                     std::vector<std::string> &argv,
+                                     std::vector<std::string> &envp)
+    : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp)
+{
+}
diff --git a/arch/alpha/alpha_linux_process.hh b/arch/alpha/alpha_linux_process.hh
new file mode 100644
index 000000000..0d2f7641f
--- /dev/null
+++ b/arch/alpha/alpha_linux_process.hh
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2003 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.
+ */
+
+#ifndef __ALPHA_LINUX_PROCESS_HH__
+#define __ALPHA_LINUX_PROCESS_HH__
+
+#include "sim/process.hh"
+
+class AlphaLinuxProcess : public LiveProcess
+{
+  public:
+    AlphaLinuxProcess(const std::string &name,
+                      ObjectFile *objFile,
+                      int stdin_fd, int stdout_fd, int stderr_fd,
+                      std::vector<std::string> &argv,
+                      std::vector<std::string> &envp);
+
+    virtual void syscall(ExecContext *xc);
+};
+
+
+#endif // __ALPHA_LINUX_PROCESS_HH__
diff --git a/arch/alpha/fake_syscall.cc b/arch/alpha/alpha_tru64_process.cc
index dc5619def..85648e68c 100644
--- a/arch/alpha/fake_syscall.cc
+++ b/arch/alpha/alpha_tru64_process.cc
@@ -28,6 +28,7 @@
 
 #include <errno.h>
 #include <unistd.h>
+#include <fcntl.h>	// for host open() flags
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <string.h>	// for memset()
@@ -36,303 +37,434 @@
 #include "sim/host.hh"
 #include "cpu/base_cpu.hh"
 #include "mem/functional_mem/functional_memory.hh"
-#include "sim/prog.hh"
+#include "sim/process.hh"
 #include "cpu/exec_context.hh"
 #include "sim/fake_syscall.hh"
-#include "sim/sim_events.hh"
 
-#include "targetarch/osf_syscalls.h"
+#include "arch/alpha/alpha_common_syscall_emul.hh"
+#include "arch/alpha/alpha_tru64_process.hh"
+
+#include "sim/syscall_emul.hh"
 #include "sim/universe.hh"	// for curTick & ticksPerSecond
 
 #include "base/trace.hh"
 
 using namespace std;
 
+class Tru64 {
+
+public:
+
 //
-// System call descriptor
+// basic Tru64 types
 //
-class SyscallDesc {
 
-  public:
+typedef uint64_t size_t;
+typedef uint64_t off_t;
+typedef uint16_t nlink_t;
+typedef int32_t  dev_t;
+typedef uint32_t uid_t;
+typedef uint32_t gid_t;
+typedef uint32_t time_t;
+typedef uint32_t mode_t;
+typedef uint32_t ino_t;
+
+// open(2) flags
+static const int TGT_O_RDONLY	 = 00000000;
+static const int TGT_O_WRONLY	 = 00000001;
+static const int TGT_O_RDWR	 = 00000002;
+static const int TGT_O_NONBLOCK  = 00000004;
+static const int TGT_O_APPEND	 = 00000010;
+static const int TGT_O_CREAT	 = 00001000;
+static const int TGT_O_TRUNC	 = 00002000;
+static const int TGT_O_EXCL	 = 00004000;
+static const int TGT_O_NOCTTY	 = 00010000;
+static const int TGT_O_SYNC	 = 00040000;
+static const int TGT_O_DRD	 = 00100000;
+static const int TGT_O_DIRECTIO  = 00200000;
+static const int TGT_O_CACHE	 = 00400000;
+static const int TGT_O_DSYNC	 = 02000000;
+static const int TGT_O_RSYNC	 = 04000000;
+
+static OpenFlagTransTable openFlagTable[];
+static const int NUM_OPEN_FLAGS;
 
-    typedef int (*FuncPtr)(SyscallDesc *, int num,
-                           Process *, ExecContext *);
+//
+// Stat buffer.  Note that Tru64 v5.0+ use a new "F64" stat structure,
+// and a new set of syscall numbers for stat calls.  Backwards
+// compatibility with v4.x should be feasible by implementing another
+// set of stat functions using the old structure definition and
+// binding them to the old syscall numbers, but we haven't done that
+// yet.
+//
 
-    const char *name;
-    FuncPtr funcPtr;
-    int flags;
+struct F64_stat {
+    dev_t	st_dev;
+    int32_t	st_retired1;
+    mode_t	st_mode;
+    nlink_t	st_nlink;
+    uint16_t	st_nlink_reserved;
+    uid_t	st_uid;
+    gid_t	st_gid;
+    dev_t	st_rdev;
+    dev_t	st_ldev;
+    off_t	st_size;
+    time_t	st_retired2;
+    int32_t	st_uatime;
+    time_t	st_retired3;
+    int32_t	st_umtime;
+    time_t	st_retired4;
+    int32_t	st_uctime;
+    int32_t	st_retired5;
+    int32_t	st_retired6;
+    uint32_t	st_flags;
+    uint32_t	st_gen;
+    uint64_t	st_spare[4];
+    ino_t	st_ino;
+    int32_t	st_ino_reserved;
+    time_t	st_atimeX;
+    int32_t	st_atime_reserved;
+    time_t	st_mtimeX;
+    int32_t	st_mtime_reserved;
+    time_t	st_ctimeX;
+    int32_t	st_ctime_reserved;
+    uint64_t	st_blksize;
+    uint64_t	st_blocks;
+};
 
-    enum Flags {
-        SuppressReturnValue = 1
-    };
 
-    SyscallDesc(const char *_name, FuncPtr _funcPtr, int _flags = 0)
-        : name(_name), funcPtr(_funcPtr), flags(_flags)
-    {
-    }
+//
+// for getdirentries()
+//
 
-    int doFunc(int num, Process *proc, ExecContext *xc)
-    {
-        return (*funcPtr)(this, num, proc, xc);
-    }
+struct dirent
+{
+    ino_t d_ino;		/* file number of entry */
+    uint16_t d_reclen;		/* length of this record */
+    uint16_t d_namlen;		/* length of string in d_name */
+    char d_name[256];		/* dummy name length */
 };
 
 
-class BaseBufferArg {
-
-  public:
+//
+// for uname()
+//
 
-    BaseBufferArg(Addr _addr, int _size) : addr(_addr), size(_size)
-    {
-        bufPtr = new uint8_t[size];
-        // clear out buffer: in case we only partially populate this,
-        // and then do a copyOut(), we want to make sure we don't
-        // introduce any random junk into the simulated address space
-        memset(bufPtr, 0, size);
-    }
+static const int _SYS_NMLN = 32;
 
-    virtual ~BaseBufferArg() { delete [] bufPtr; }
+struct utsname {
+    char sysname[_SYS_NMLN];
+    char nodename[_SYS_NMLN];
+    char release[_SYS_NMLN];
+    char version[_SYS_NMLN];
+    char machine[_SYS_NMLN];
+};
 
-    //
-    // copy data into simulator space (read from target memory)
-    //
-    virtual bool copyIn(FunctionalMemory *mem)
-    {
-        mem->access(Read, addr, bufPtr, size);
-        return true;	// no EFAULT detection for now
-    }
 
-    //
-    // copy data out of simulator space (write to target memory)
-    //
-    virtual bool copyOut(FunctionalMemory *mem)
-    {
-        mem->access(Write, addr, bufPtr, size);
-        return true;	// no EFAULT detection for now
-    }
+//
+// for ioctl()
+//
 
-  protected:
-    Addr addr;
-    int size;
-    uint8_t *bufPtr;
-};
+static const unsigned TIOCGETP   = 0x40067408;
+static const unsigned TIOCSETP   = 0x80067409;
+static const unsigned TIOCSETN   = 0x8006740a;
+static const unsigned TIOCSETC   = 0x80067411;
+static const unsigned TIOCGETC   = 0x40067412;
+static const unsigned FIONREAD   = 0x4004667f;
+static const unsigned TIOCISATTY = 0x2000745e;
 
+//
+// for getrlimit()
+//
 
-class BufferArg : public BaseBufferArg
-{
-  public:
-    BufferArg(Addr _addr, int _size) : BaseBufferArg(_addr, _size) { }
-    void *bufferPtr()	{ return bufPtr; }
+enum rlimit_resources {
+    RLIMIT_CPU = 0,
+    RLIMIT_FSIZE = 1,
+    RLIMIT_DATA = 2,
+    RLIMIT_STACK = 3,
+    RLIMIT_CORE = 4,
+    RLIMIT_RSS = 5,
+    RLIMIT_NOFILE = 6,
+    RLIMIT_AS = 7,
+    RLIMIT_VMEM = 7
 };
 
-template <class T>
-class TypedBufferArg : public BaseBufferArg
-{
-  public:
-    // user can optionally specify a specific number of bytes to
-    // allocate to deal with those structs that have variable-size
-    // arrays at the end
-    TypedBufferArg(Addr _addr, int _size = sizeof(T))
-        : BaseBufferArg(_addr, _size)
-    { }
-
-    // type case
-    operator T*() { return (T *)bufPtr; }
-
-    // dereference operators
-    T& operator*()	 { return *((T *)bufPtr); }
-    T* operator->()	 { return (T *)bufPtr; }
-    T& operator[](int i) { return ((T *)bufPtr)[i]; }
+struct rlimit {
+    uint64_t  rlim_cur;	// soft limit
+    uint64_t  rlim_max;	// hard limit
 };
 
 
-static IntReg
-getArg(ExecContext *xc, int i)
-{
-    return xc->regs.intRegFile[ArgumentReg0 + i];
-}
-
-
 //
-// used to shift args for indirect syscall
+// for mmap()
 //
-static void
-setArg(ExecContext *xc, int i, IntReg val)
-{
-    xc->regs.intRegFile[ArgumentReg0 + i] = val;
-}
-
-
-static void
-set_return_value(ExecContext *xc, int64_t return_value)
-{
-    // check for error condition.  Alpha syscall convention is to
-    // indicate success/failure in reg a3 (r19) and put the
-    // return value itself in the standard return value reg (v0).
-    const int RegA3 = 19;	// only place this is used
-    if (return_value >= 0) {
-        // no error
-        xc->regs.intRegFile[RegA3] = 0;
-        xc->regs.intRegFile[ReturnValueReg] = return_value;
-    } else {
-        // got an error, return details
-        xc->regs.intRegFile[RegA3] = (IntReg) -1;
-        xc->regs.intRegFile[ReturnValueReg] = -return_value;
-    }
-}
-
-
-int
-getpagesizeFunc(SyscallDesc *desc, int callnum, Process *process,
-                ExecContext *xc)
-{
-    return VMPageSize;
-}
-
-
-int
-obreakFunc(SyscallDesc *desc, int callnum, Process *process,
-           ExecContext *xc)
-{
-    // change brk addr to first arg
-    process->brk_point = getArg(xc, 0);
-    return process->brk_point;
-}
-
-
-int
-ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
-{
-    int fd = getArg(xc, 0);
-    unsigned req = getArg(xc, 1);
+    static const unsigned TGT_MAP_ANONYMOUS = 0x10;
 
-    DPRINTFR(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req);
 
-    if (fd < 0 || process->sim_fd(fd) < 0) {
-        // doesn't map to any simulator fd: not a valid target fd
-        return -EBADF;
-    }
+//
+// for getsysinfo()
+//
 
-    switch (req) {
-      case OSF::TIOCISATTY:
-      case OSF::TIOCGETP:
-      case OSF::TIOCSETP:
-      case OSF::TIOCSETN:
-      case OSF::TIOCSETC:
-      case OSF::TIOCGETC:
-        return -ENOTTY;
+static const unsigned GSI_PLATFORM_NAME = 103;	// get platform name as string
+static const unsigned GSI_CPU_INFO = 59;	// CPU information
+static const unsigned GSI_PROC_TYPE = 60;	// get proc_type
+static const unsigned GSI_MAX_CPU = 30;	// max # cpu's on this machine
+static const unsigned GSI_CPUS_IN_BOX = 55;	// number of processors in system
+static const unsigned GSI_PHYSMEM = 19;	// Amount of physical memory in KB
+static const unsigned GSI_CLK_TCK = 42;	// clock freq in Hz
+
+struct cpu_info {
+    uint32_t     current_cpu;
+    uint32_t     cpus_in_box;
+    uint32_t     cpu_type;
+    uint32_t     ncpus;
+    uint64_t cpus_present;
+    uint64_t cpus_running;
+    uint64_t cpu_binding;
+    uint64_t cpu_ex_binding;
+    uint32_t     mhz;
+    uint32_t     unused[3];      // future expansion
+};
 
-      default:
-        fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...)\n", fd, req);
-    }
-}
+//
+// for gettimeofday
+//
 
+struct timeval {
+    uint32_t tv_sec;
+    uint32_t tv_usec;
+};
 
-int
-openFunc(SyscallDesc *desc, int callnum, Process *process,
-         ExecContext *xc)
-{
-    string path;
+//
+// for getrusage
+//
 
-    if (xc->mem->readString(path, getArg(xc, 0)) != No_Fault)
-        return -EFAULT;
 
-    if (path == "/dev/sysdev0") {
-        // This is a memory-mapped high-resolution timer device on Alpha.
-        // We don't support it, so just punt.
-        DCOUT(SyscallWarnings) << "Ignoring open(" << path << ", ...)" << endl;
-        return -ENOENT;
-    }
+static const int RUSAGE_THREAD = 1;
+static const int RUSAGE_SELF = 0;
+static const int RUSAGE_CHILDREN = -1;
+
+struct rusage {
+     struct timeval ru_utime;	// user time used
+     struct timeval ru_stime;	// system time used
+     uint64_t ru_maxrss;
+     uint64_t ru_ixrss;		// integral shared memory size
+     uint64_t ru_idrss;		// integral unshared data "
+     uint64_t ru_isrss;		// integral unshared stack "
+     uint64_t ru_minflt;		// page reclaims - total vmfaults
+     uint64_t ru_majflt;		// page faults
+     uint64_t ru_nswap;		// swaps
+     uint64_t ru_inblock;	// block input operations
+     uint64_t ru_oublock;	// block output operations
+     uint64_t ru_msgsnd;		// messages sent
+     uint64_t ru_msgrcv;		// messages received
+     uint64_t ru_nsignals;	// signals received
+     uint64_t ru_nvcsw;		// voluntary context switches
+     uint64_t ru_nivcsw;		// involuntary "
+};
 
-    int osfFlags = getArg(xc, 1);
-    int mode = getArg(xc, 2);
-    int hostFlags = 0;
+//
+// for sigreturn
+//
 
-    // translate open flags
-    for (int i = 0; i < OSF::NUM_OPEN_FLAGS; i++) {
-        if (osfFlags & OSF::openFlagTable[i].osfFlag) {
-            osfFlags &= ~OSF::openFlagTable[i].osfFlag;
-            hostFlags |= OSF::openFlagTable[i].hostFlag;
-        }
-    }
+struct sigcontext {
+     int64_t sc_onstack;	// sigstack state to restore
+     int64_t sc_mask;		// signal mask to restore
+     int64_t sc_pc;		// pc at time of signal
+     int64_t sc_ps;		// psl to retore
+     int64_t sc_regs[32];	// processor regs 0 to 31
+     int64_t sc_ownedfp;	// fp has been used
+     int64_t sc_fpregs[32];	// fp regs 0 to 31
+     uint64_t sc_fpcr;		// floating point control reg
+     uint64_t sc_fp_control;	// software fpcr
+     int64_t sc_reserved1;	// reserved for kernel
+     uint32_t sc_kreserved1;	// reserved for kernel
+     uint32_t sc_kreserved2;	// reserved for kernel
+     size_t  sc_ssize;	// stack size
+     caddr_t sc_sbase;	// stack start
+     uint64_t sc_traparg_a0;	// a0 argument to trap on exc
+     uint64_t sc_traparg_a1;	// a1 argument to trap on exc
+     uint64_t sc_traparg_a2;	// a2 argument to trap on exc
+     uint64_t sc_fp_trap_pc;	// imprecise pc
+     uint64_t sc_fp_trigger_sum;	// Exception summary at trigg
+     uint64_t sc_fp_trigger_inst; // Instruction at trigger pc
+};
 
-    // any target flags left?
-    if (osfFlags != 0)
-        cerr << "Syscall: open: cannot decode flags: " <<  osfFlags << endl;
 
-#ifdef __CYGWIN32__
-    hostFlags |= O_BINARY;
-#endif
+//
+// for table
+//
+static const int TBL_SYSINFO = 12;
+
+struct tbl_sysinfo {
+    uint64_t si_user;	// User time
+    uint64_t si_nice;	// Nice time
+    uint64_t si_sys;	// System time
+    uint64_t si_idle;	// Idle time
+    uint64_t si_hz;
+    uint64_t si_phz;
+    uint64_t si_boottime;	// Boot time in seconds
+    uint64_t wait;		// Wait time
+    uint32_t  si_max_procs;	// rpb->rpb_numprocs
+    uint32_t  pad;
+};
 
-    // open the file
-    int fd = open(path.c_str(), hostFlags, mode);
-
-    return (fd == -1) ? -errno : process->open_fd(fd);
-}
 
+//
+// for stack_create
+//
 
-int
-closeFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
-{
-    int fd = process->sim_fd(getArg(xc, 0));
-    return close(fd);
-}
+struct vm_stack {
+    // void *
+    Addr	address;	// address hint
+    size_t	rsize;		// red zone size
+    size_t	ysize;		// yellow zone size
+    size_t	gsize;		// green zone size
+    size_t	swap;		// amount of swap to reserve
+    size_t	incr;		// growth increment
+    uint64_t	align;		// address alignment
+    uint64_t	flags;		// MAP_FIXED etc.
+    // struct memalloc_attr *
+    Addr	attr;		// allocation policy
+    uint64_t reserved;
+};
 
+//
+// return values for nxm calls
+//
+enum {
+    KERN_NOT_RECEIVER = 7,
+    KERN_NOT_IN_SET = 12
+};
 
-int
-readFunc(SyscallDesc *desc, int callnum, Process *process,
-         ExecContext *xc)
-{
-    int fd = process->sim_fd(getArg(xc, 0));
-    int nbytes = getArg(xc, 2);
-    BufferArg bufArg(getArg(xc, 1), nbytes);
+//
+// for nxm_task_init
+//
 
-    int bytes_read = read(fd, bufArg.bufferPtr(), nbytes);
+static const int NXM_TASK_INIT_VP = 2;	// initial thread is VP
 
-    if (bytes_read != -1)
-        bufArg.copyOut(xc->mem);
+struct nxm_task_attr {
+    int64_t nxm_callback;
+    unsigned int nxm_version;
+    unsigned short nxm_uniq_offset;
+    unsigned short flags;
+    int nxm_quantum;
+    int pad1;
+    int64_t pad2;
+};
 
-    return bytes_read;
-}
+typedef uint64_t   sigset_t;
+
+struct ushared_state {
+    sigset_t        sigmask;        // thread signal mask
+    sigset_t        sig;            // thread pending mask
+    // struct nxm_pth_state *
+    Addr pth_id; // out-of-line state
+    int             flags;          // shared flags
+#define US_SIGSTACK     0x1             // thread called sigaltstack
+#define US_ONSTACK      0x2             // thread is running on altstack
+#define US_PROFILE      0x4             // thread called profil
+#define US_SYSCALL      0x8             // thread in syscall
+#define US_TRAP         0x10            // thread has trapped
+#define US_YELLOW       0x20            // thread has mellowed yellow
+#define US_YZONE        0x40            // thread has zoned out
+#define US_FP_OWNED     0x80            // thread used floating point
+
+    int             cancel_state;   // thread's cancelation state
+#define US_CANCEL         0x1           // cancel pending
+#define US_NOCANCEL       0X2           // synch cancel disabled
+#define US_SYS_NOCANCEL   0x4           // syscall cancel disabled
+#define US_ASYNC_NOCANCEL 0x8           // asynch cancel disabled
+#define US_CANCEL_BITS  (US_NOCANCEL|US_SYS_NOCANCEL|US_ASYNC_NOCANCEL)
+#define US_CANCEL_MASK  (US_CANCEL|US_NOCANCEL|US_SYS_NOCANCEL| \
+                         US_ASYNC_NOCANCEL)
+
+    // These are semi-shared. They are always visible to
+    // the kernel but are never context-switched by the library.
+
+    int             nxm_ssig;       // scheduler's synchronous signals
+    int             reserved1;
+    int64_t            nxm_active;     // scheduler active
+    int64_t            reserved2;
+};
 
-int
-writeFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
-{
-    int fd = process->sim_fd(getArg(xc, 0));
-    int nbytes = getArg(xc, 2);
-    BufferArg bufArg(getArg(xc, 1), nbytes);
+struct nxm_sched_state {
+    struct          ushared_state nxm_u;    // state own by user thread
+    unsigned int    nxm_bits;               // scheduler state / slot
+    int             nxm_quantum;            // quantum count-down value
+    int             nxm_set_quantum;        // quantum reset value
+    int             nxm_sysevent;           // syscall state
+    // struct nxm_upcall *
+    Addr	    nxm_uc_ret; // stack ptr of null thread
+    // void *
+    Addr nxm_tid;               // scheduler's thread id
+    int64_t            nxm_va;                 // page fault address
+    // struct nxm_pth_state *
+    Addr nxm_pthid; // id of null thread
+    uint64_t   nxm_bound_pcs_count;    // bound PCS thread count
+    int64_t            pad[2];
+};
 
-    bufArg.copyIn(xc->mem);
+struct nxm_shared {
+    int64_t nxm_callback;              // address of upcall routine
+    unsigned int nxm_version;       // version number
+    unsigned short nxm_uniq_offset; // correction factor for TEB
+    unsigned short pad1;
+    int64_t space[2];                  // future growth
+    struct nxm_sched_state nxm_ss[1]; // array of shared areas
+};
 
-    int bytes_written = write(fd, bufArg.bufferPtr(), nbytes);
+enum nxm_slot_state_t {
+    NXM_SLOT_AVAIL,
+    NXM_SLOT_BOUND,
+    NXM_SLOT_UNBOUND,
+    NXM_SLOT_EMPTY
+};
 
-    fsync(fd);
 
-    return bytes_written;
-}
+struct nxm_config_info {
+    int nxm_nslots_per_rad;         // max number of VP slots per RAD
+    int nxm_nrads;                  // max number of RADs
+    // nxm_slot_state_t *
+    Addr nxm_slot_state; // per-VP slot state
+    // struct nxm_shared *
+    Addr nxm_rad[1];  // per-RAD shared areas
+};
 
+//
+// for nxm_thread_create
+//
 
-int
-lseekFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
-{
-    int fd = process->sim_fd(getArg(xc, 0));
-    uint64_t offs = getArg(xc, 1);
-    int whence = getArg(xc, 2);
+enum nxm_thread_type {
+    NXM_TYPE_SCS	= 0,
+    NXM_TYPE_VP		= 1,
+    NXM_TYPE_MANAGER	= 2
+};
 
-    off_t result = lseek(fd, offs, whence);
 
-    return (result == (off_t)-1) ? -errno : result;
-}
+struct nxm_thread_attr {
+    int version;
+    int type;
+    int cancel_flags;
+    int priority;
+    int policy;
+    int signal_type;
+    // void *
+    Addr pthid;
+    sigset_t sigmask;
+    struct {
+        uint64_t pc;
+        uint64_t sp;
+        uint64_t a0;
+    } registers;
+    uint64_t pad2[2];
+};
 
 static
 void
 copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
 {
-    TypedBufferArg<OSF::F64_stat> tgt(addr);
+    TypedBufferArg<Tru64::F64_stat> tgt(addr);
 
     tgt->st_dev = host->st_dev;
     tgt->st_ino = host->st_ino;
@@ -351,107 +483,14 @@ copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
     tgt.copyOut(mem);
 }
 
-int
-statFunc(SyscallDesc *desc, int callnum, Process *process,
-         ExecContext *xc)
-{
-    string path;
-
-    if (xc->mem->readString(path, getArg(xc, 0)) != No_Fault)
-        return -EFAULT;
-
-    struct stat hostBuf;
-    int result = stat(path.c_str(), &hostBuf);
-
-    if (result < 0)
-        return -errno;
-
-    copyOutStatBuf(xc->mem, getArg(xc, 1), &hostBuf);
-
-    return 0;
-}
-
-
-int
-lstatFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
-{
-    string path;
-
-    if (xc->mem->readString(path, getArg(xc, 0)) != No_Fault)
-        return -EFAULT;
-
-    struct stat hostBuf;
-    int result = lstat(path.c_str(), &hostBuf);
-
-    if (result < 0)
-        return -errno;
-
-    copyOutStatBuf(xc->mem, getArg(xc, 1), &hostBuf);
-
-    return 0;
-}
-
-int
-fstatFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
-{
-    int fd = process->sim_fd(getArg(xc, 0));
-
-    DPRINTFR(SyscallVerbose, "fstat(%d, ...)\n", fd);
-
-    if (fd < 0)
-        return -EBADF;
-
-    struct stat hostBuf;
-    int result = fstat(fd, &hostBuf);
-
-    if (result < 0)
-        return -errno;
-
-    copyOutStatBuf(xc->mem, getArg(xc, 1), &hostBuf);
-
-    return 0;
-}
-
-
-//
-// We don't handle mmap().  If the target is really mmaping /dev/zero,
-// we can get away with doing nothing (since the simulator doesn't
-// really check addresses anyway).  Always print a warning, since this
-// could be seriously broken if we're not mapping /dev/zero.
-//
-// Someday we should explicitly check for /dev/zero in open, flag the
-// file descriptor, and fail an mmap to anything else.
-//
-int
-mmapFunc(SyscallDesc *desc, int callnum, Process *process,
-         ExecContext *xc)
-{
-    Addr start = getArg(xc, 0);
-    uint64_t length = getArg(xc, 1);
-    int prot = getArg(xc, 2);
-    int flags = getArg(xc, 3);
-    int fd = process->sim_fd(getArg(xc, 4));
-    int offset = getArg(xc, 5);
-
-    cerr << "Warning: ignoring syscall mmap("
-         << start << ", " << length << ", "
-         << prot << ", " << flags << ", "
-         << fd << " " << getArg(xc, 4) << ", "
-         << offset << ")" << endl;
-
-    return start;
-}
-
-
-const char *hostname = "m5.eecs.umich.edu";
+static const char *hostname;
 
+static
 int
 unameFunc(SyscallDesc *desc, int callnum, Process *process,
           ExecContext *xc)
 {
-    TypedBufferArg<OSF::utsname> name(getArg(xc, 0));
+    TypedBufferArg<Tru64::utsname> name(xc->getSyscallArg(0));
 
     strcpy(name->sysname, "OSF1");
     strcpy(name->nodename, hostname);
@@ -464,53 +503,39 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
-int
-gethostnameFunc(SyscallDesc *desc, int callnum, Process *process,
-                ExecContext *xc)
-{
-    int name_len = getArg(xc, 1);
-    BufferArg name(getArg(xc, 0), name_len);
-
-    strncpy((char *)name.bufferPtr(), hostname, name_len);
-
-    name.copyOut(xc->mem);
-
-    return 0;
-}
-
-
+static
 int
 getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
                ExecContext *xc)
 {
-    unsigned op = getArg(xc, 0);
-    unsigned nbytes = getArg(xc, 2);
+    unsigned op = xc->getSyscallArg(0);
+    unsigned nbytes = xc->getSyscallArg(2);
 
     switch (op) {
 
-      case OSF::GSI_MAX_CPU: {
-          TypedBufferArg<uint32_t> max_cpu(getArg(xc, 1));
+      case Tru64::GSI_MAX_CPU: {
+          TypedBufferArg<uint32_t> max_cpu(xc->getSyscallArg(1));
           *max_cpu = process->numCpus();
           max_cpu.copyOut(xc->mem);
           return 1;
       }
 
-      case OSF::GSI_CPUS_IN_BOX: {
-          TypedBufferArg<uint32_t> cpus_in_box(getArg(xc, 1));
+      case Tru64::GSI_CPUS_IN_BOX: {
+          TypedBufferArg<uint32_t> cpus_in_box(xc->getSyscallArg(1));
           *cpus_in_box = process->numCpus();
           cpus_in_box.copyOut(xc->mem);
           return 1;
       }
 
-      case OSF::GSI_PHYSMEM: {
-          TypedBufferArg<uint64_t> physmem(getArg(xc, 1));
+      case Tru64::GSI_PHYSMEM: {
+          TypedBufferArg<uint64_t> physmem(xc->getSyscallArg(1));
           *physmem = 1024 * 1024;	// physical memory in KB
           physmem.copyOut(xc->mem);
           return 1;
       }
 
-      case OSF::GSI_CPU_INFO: {
-          TypedBufferArg<OSF::cpu_info> infop(getArg(xc, 1));
+      case Tru64::GSI_CPU_INFO: {
+          TypedBufferArg<Tru64::cpu_info> infop(xc->getSyscallArg(1));
 
           infop->current_cpu = 0;
           infop->cpus_in_box = process->numCpus();
@@ -526,15 +551,15 @@ getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
           return 1;
         }
 
-      case OSF::GSI_PROC_TYPE: {
-          TypedBufferArg<uint64_t> proc_type(getArg(xc, 1));
+      case Tru64::GSI_PROC_TYPE: {
+          TypedBufferArg<uint64_t> proc_type(xc->getSyscallArg(1));
           *proc_type = 11;
           proc_type.copyOut(xc->mem);
           return 1;
       }
 
-      case OSF::GSI_PLATFORM_NAME: {
-          BufferArg bufArg(getArg(xc, 1), nbytes);
+      case Tru64::GSI_PLATFORM_NAME: {
+          BufferArg bufArg(xc->getSyscallArg(1), nbytes);
           strncpy((char *)bufArg.bufferPtr(),
                   "COMPAQ Professional Workstation XP1000",
                   nbytes);
@@ -542,8 +567,8 @@ getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
           return 1;
       }
 
-      case OSF::GSI_CLK_TCK: {
-          TypedBufferArg<uint64_t> clk_hz(getArg(xc, 1));
+      case Tru64::GSI_CLK_TCK: {
+          TypedBufferArg<uint64_t> clk_hz(xc->getSyscallArg(1));
           *clk_hz = 1024;
           clk_hz.copyOut(xc->mem);
           return 1;
@@ -558,64 +583,17 @@ getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
     return 0;
 }
 
-int
-getpidFunc(SyscallDesc *desc, int callnum, Process *process,
-           ExecContext *xc)
-{
-    // Make up a PID.  There's no interprocess communication in
-    // fake_syscall mode, so there's no way for a process to know it's
-    // not getting a unique value.
-
-    // This is one of the funky syscalls that has two return values,
-    // with the second one (parent PID) going in r20.
-    xc->regs.intRegFile[20] = 99;
-    return 100;
-}
-
-
-int
-getuidFunc(SyscallDesc *desc, int callnum, Process *process,
-           ExecContext *xc)
-{
-    // Make up a UID and EUID... it shouldn't matter, and we want the
-    // simulation to be deterministic.
-
-    // EUID goes in r20.
-    xc->regs.intRegFile[20] = 100;	// EUID
-    return 100;				// UID
-}
-
-
-int
-getgidFunc(SyscallDesc *desc, int callnum, Process *process,
-           ExecContext *xc)
-{
-    // Get current group ID.  EGID goes in r20.
-    xc->regs.intRegFile[20] = 100;
-    return 100;
-}
-
-
-int
-setuidFunc(SyscallDesc *desc, int callnum, Process *process,
-           ExecContext *xc)
-{
-    // can't fathom why a benchmark would call this.
-    warn("Ignoring call to setuid(%d)\n", getArg(xc, 0));
-    return 0;
-}
-
-
+static
 int
 fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
            ExecContext *xc)
 {
-    int fd = getArg(xc,0);
+    int fd = xc->getSyscallArg(0);
 
     if (fd < 0 || process->sim_fd(fd) < 0)
         return -EBADF;
 
-    int cmd = getArg(xc,1);
+    int cmd = xc->getSyscallArg(1);
     switch (cmd) {
       case 0: // F_DUPFD
         // if we really wanted to support this, we'd need to do it
@@ -623,8 +601,10 @@ fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
         warn("fcntl(%d, F_DUPFD) not supported, error returned\n", fd);
         return -EMFILE;
 
-      case 1: // F_GETFD (get fd flags)
-      case 2: // F_SETFD (set fd flags)
+      case 1: // F_GETFD (get close-on-exec flag)
+      case 2: // F_SETFD (set close-on-exec flag)
+        return 0;
+
       case 3: // F_GETFL (get file flags)
       case 4: // F_SETFL (set file flags)
         // not sure if this is totally valid, but we'll pass it through
@@ -647,21 +627,22 @@ fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 getdirentriesFunc(SyscallDesc *desc, int callnum, Process *process,
                   ExecContext *xc)
 {
-    int fd = process->sim_fd(getArg(xc, 0));
-    Addr tgt_buf = getArg(xc, 1);
-    int tgt_nbytes = getArg(xc, 2);
-    Addr tgt_basep = getArg(xc, 3);
+    int fd = process->sim_fd(xc->getSyscallArg(0));
+    Addr tgt_buf = xc->getSyscallArg(1);
+    int tgt_nbytes = xc->getSyscallArg(2);
+    Addr tgt_basep = xc->getSyscallArg(3);
 
     char * const host_buf = new char[tgt_nbytes];
 
     // just pass basep through uninterpreted.
     TypedBufferArg<int64_t> basep(tgt_basep);
     basep.copyIn(xc->mem);
-    off_t host_basep = (off_t)*basep;
+    ::off_t host_basep = (off_t)*basep;
     int host_result = getdirentries(fd, host_buf, tgt_nbytes, &host_basep);
 
     // check for error
@@ -679,10 +660,10 @@ getdirentriesFunc(SyscallDesc *desc, int callnum, Process *process,
         int namelen = strlen(host_dp->d_name);
 
         // Actual size includes padded string rounded up for alignment.
-        // Subtract 256 for dummy char array in OSF::dirent definition.
+        // Subtract 256 for dummy char array in Tru64::dirent definition.
         // Add 1 to namelen for terminating null char.
-        int tgt_bufsize = sizeof(OSF::dirent) - 256 + RoundUp(namelen+1, 8);
-        TypedBufferArg<OSF::dirent> tgt_dp(tgt_buf_ptr, tgt_bufsize);
+        int tgt_bufsize = sizeof(Tru64::dirent) - 256 + RoundUp(namelen+1, 8);
+        TypedBufferArg<Tru64::dirent> tgt_dp(tgt_buf_ptr, tgt_bufsize);
         tgt_dp->d_ino = host_dp->d_ino;
         tgt_dp->d_reclen = tgt_bufsize;
         tgt_dp->d_namlen = namelen;
@@ -702,110 +683,13 @@ getdirentriesFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
-int
-getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
-              ExecContext *xc)
-{
-    unsigned resource = getArg(xc, 0);
-    TypedBufferArg<OSF::rlimit> rlp(getArg(xc, 1));
-
-    switch (resource) {
-      case OSF::RLIMIT_STACK:
-        // max stack size in bytes: make up a number (2MB for now)
-        rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
-        break;
-
-      default:
-        cerr << "getrlimitFunc: unimplemented resource " << resource << endl;
-        abort();
-        break;
-    }
-
-    rlp.copyOut(xc->mem);
-    return 0;
-}
-
-// 1M usecs in 1 sec, for readability
-static const int one_million = 1000000;
-
-// seconds since the epoch (1/1/1970)... about a billion, by my reckoning
-static const unsigned seconds_since_epoch = 1000000000;
-
-//
-// helper function: populate struct timeval with approximation of
-// current elapsed time
-//
-static void
-getElapsedTime(OSF::timeval *tp)
-{
-    int cycles_per_usec = ticksPerSecond / one_million;
-
-    int elapsed_usecs = curTick / cycles_per_usec;
-    tp->tv_sec = elapsed_usecs / one_million;
-    tp->tv_usec = elapsed_usecs % one_million;
-}
-
-
-int
-gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
-                 ExecContext *xc)
-{
-    TypedBufferArg<OSF::timeval> tp(getArg(xc, 0));
-
-    getElapsedTime(tp);
-    tp->tv_sec += seconds_since_epoch;
-
-    tp.copyOut(xc->mem);
-
-    return 0;
-}
-
-
-int
-getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
-              ExecContext *xc)
-{
-    int who = getArg(xc, 0);	// THREAD, SELF, or CHILDREN
-    TypedBufferArg<OSF::rusage> rup(getArg(xc, 1));
-
-    if (who != OSF::RUSAGE_SELF) {
-        // don't really handle THREAD or CHILDREN, but just warn and
-        // plow ahead
-        DCOUT(SyscallWarnings)
-            << "Warning: getrusage() only supports RUSAGE_SELF."
-            << "  Parameter " << who << " ignored." << endl;
-    }
-
-    getElapsedTime(&rup->ru_utime);
-    rup->ru_stime.tv_sec = 0;
-    rup->ru_stime.tv_usec = 0;
-    rup->ru_maxrss = 0;
-    rup->ru_ixrss = 0;
-    rup->ru_idrss = 0;
-    rup->ru_isrss = 0;
-    rup->ru_minflt = 0;
-    rup->ru_majflt = 0;
-    rup->ru_nswap = 0;
-    rup->ru_inblock = 0;
-    rup->ru_oublock = 0;
-    rup->ru_msgsnd = 0;
-    rup->ru_msgrcv = 0;
-    rup->ru_nsignals = 0;
-    rup->ru_nvcsw = 0;
-    rup->ru_nivcsw = 0;
-
-    rup.copyOut(xc->mem);
-
-    return 0;
-}
-
-
+static
 int
 sigreturnFunc(SyscallDesc *desc, int callnum, Process *process,
               ExecContext *xc)
 {
     RegFile *regs = &xc->regs;
-    TypedBufferArg<OSF::sigcontext> sc(getArg(xc, 0));
+    TypedBufferArg<Tru64::sigcontext> sc(xc->getSyscallArg(0));
 
     sc.copyIn(xc->mem);
 
@@ -825,21 +709,22 @@ sigreturnFunc(SyscallDesc *desc, int callnum, Process *process,
     return 0;
 }
 
+static
 int
 tableFunc(SyscallDesc *desc, int callnum, Process *process,
           ExecContext *xc)
 {
-    int id = getArg(xc, 0);		// table ID
-    int index = getArg(xc, 1);	// index into table
+    int id = xc->getSyscallArg(0);		// table ID
+    int index = xc->getSyscallArg(1);	// index into table
     // arg 2 is buffer pointer; type depends on table ID
-    int nel = getArg(xc, 3);		// number of elements
-    int lel = getArg(xc, 4);		// expected element size
+    int nel = xc->getSyscallArg(3);		// number of elements
+    int lel = xc->getSyscallArg(4);		// expected element size
 
     switch (id) {
-      case OSF::TBL_SYSINFO: {
-          if (index != 0 || nel != 1 || lel != sizeof(OSF::tbl_sysinfo))
+      case Tru64::TBL_SYSINFO: {
+          if (index != 0 || nel != 1 || lel != sizeof(Tru64::tbl_sysinfo))
               return -EINVAL;
-          TypedBufferArg<OSF::tbl_sysinfo> elp(getArg(xc, 2));
+          TypedBufferArg<Tru64::tbl_sysinfo> elp(xc->getSyscallArg(2));
 
           const int clk_hz = one_million;
           elp->si_user = curTick / (ticksPerSecond / clk_hz);
@@ -861,342 +746,22 @@ tableFunc(SyscallDesc *desc, int callnum, Process *process,
     }
 }
 
-//
-// forward declaration... defined below table
-//
-int
-indirectSyscallFunc(SyscallDesc *desc, int callnum, Process *process,
-                    ExecContext *xc);
-
-//
-// Handler for unimplemented syscalls that we haven't thought about.
-//
-int
-unimplementedFunc(SyscallDesc *desc, int callnum, Process *process,
-                  ExecContext *xc)
-{
-    cerr << "Error: syscall " << desc->name
-         << " (#" << callnum << ") unimplemented.";
-    cerr << "  Args: " << getArg(xc, 0) << ", " << getArg(xc, 1)
-         << ", ..." << endl;
-
-    abort();
-}
+static SyscallDesc syscallDescs[];
 
-
-//
-// Handler for unimplemented syscalls that we never intend to
-// implement (signal handling, etc.) and should not affect the correct
-// behavior of the program.  Print a warning only if the appropriate
-// trace flag is enabled.  Return success to the target program.
-//
-int
-ignoreFunc(SyscallDesc *desc, int callnum, Process *process,
-           ExecContext *xc)
-{
-    DCOUT(SyscallWarnings) << "Warning: ignoring syscall " << desc->name
-                           << "(" << getArg(xc, 0)
-                           << ", " << getArg(xc, 1)
-                           << ", ...)" << endl;
-
-    return 0;
-}
-
-
-int
-exitFunc(SyscallDesc *desc, int callnum, Process *process,
-         ExecContext *xc)
-{
-    new SimExitEvent("syscall caused exit", getArg(xc, 0) & 0xff);
-
-    return 1;
-}
-
-
-SyscallDesc syscallDescs[] = {
-    /* 0 */ SyscallDesc("syscall (#0)", indirectSyscallFunc, SyscallDesc::SuppressReturnValue),
-    /* 1 */ SyscallDesc("exit", exitFunc),
-    /* 2 */ SyscallDesc("fork", unimplementedFunc),
-    /* 3 */ SyscallDesc("read", readFunc),
-    /* 4 */ SyscallDesc("write", writeFunc),
-    /* 5 */ SyscallDesc("old_open", unimplementedFunc),
-    /* 6 */ SyscallDesc("close", closeFunc),
-    /* 7 */ SyscallDesc("wait4", unimplementedFunc),
-    /* 8 */ SyscallDesc("old_creat", unimplementedFunc),
-    /* 9 */ SyscallDesc("link", unimplementedFunc),
-    /* 10 */ SyscallDesc("unlink", unimplementedFunc),
-    /* 11 */ SyscallDesc("execv", unimplementedFunc),
-    /* 12 */ SyscallDesc("chdir", unimplementedFunc),
-    /* 13 */ SyscallDesc("fchdir", unimplementedFunc),
-    /* 14 */ SyscallDesc("mknod", unimplementedFunc),
-    /* 15 */ SyscallDesc("chmod", unimplementedFunc),
-    /* 16 */ SyscallDesc("chown", unimplementedFunc),
-    /* 17 */ SyscallDesc("obreak", obreakFunc),
-    /* 18 */ SyscallDesc("pre_F64_getfsstat", unimplementedFunc),
-    /* 19 */ SyscallDesc("lseek", lseekFunc),
-    /* 20 */ SyscallDesc("getpid", getpidFunc),
-    /* 21 */ SyscallDesc("mount", unimplementedFunc),
-    /* 22 */ SyscallDesc("unmount", unimplementedFunc),
-    /* 23 */ SyscallDesc("setuid", setuidFunc),
-    /* 24 */ SyscallDesc("getuid", getuidFunc),
-    /* 25 */ SyscallDesc("exec_with_loader", unimplementedFunc),
-    /* 26 */ SyscallDesc("ptrace", unimplementedFunc),
-    /* 27 */ SyscallDesc("recvmsg", unimplementedFunc),
-    /* 28 */ SyscallDesc("sendmsg", unimplementedFunc),
-    /* 29 */ SyscallDesc("recvfrom", unimplementedFunc),
-    /* 30 */ SyscallDesc("accept", unimplementedFunc),
-    /* 31 */ SyscallDesc("getpeername", unimplementedFunc),
-    /* 32 */ SyscallDesc("getsockname", unimplementedFunc),
-    /* 33 */ SyscallDesc("access", unimplementedFunc),
-    /* 34 */ SyscallDesc("chflags", unimplementedFunc),
-    /* 35 */ SyscallDesc("fchflags", unimplementedFunc),
-    /* 36 */ SyscallDesc("sync", unimplementedFunc),
-    /* 37 */ SyscallDesc("kill", unimplementedFunc),
-    /* 38 */ SyscallDesc("old_stat", unimplementedFunc),
-    /* 39 */ SyscallDesc("setpgid", unimplementedFunc),
-    /* 40 */ SyscallDesc("old_lstat", unimplementedFunc),
-    /* 41 */ SyscallDesc("dup", unimplementedFunc),
-    /* 42 */ SyscallDesc("pipe", unimplementedFunc),
-    /* 43 */ SyscallDesc("set_program_attributes", unimplementedFunc),
-    /* 44 */ SyscallDesc("profil", unimplementedFunc),
-    /* 45 */ SyscallDesc("open", openFunc),
-    /* 46 */ SyscallDesc("obsolete osigaction", unimplementedFunc),
-    /* 47 */ SyscallDesc("getgid", getgidFunc),
-    /* 48 */ SyscallDesc("sigprocmask", ignoreFunc),
-    /* 49 */ SyscallDesc("getlogin", unimplementedFunc),
-    /* 50 */ SyscallDesc("setlogin", unimplementedFunc),
-    /* 51 */ SyscallDesc("acct", unimplementedFunc),
-    /* 52 */ SyscallDesc("sigpending", unimplementedFunc),
-    /* 53 */ SyscallDesc("classcntl", unimplementedFunc),
-    /* 54 */ SyscallDesc("ioctl", ioctlFunc),
-    /* 55 */ SyscallDesc("reboot", unimplementedFunc),
-    /* 56 */ SyscallDesc("revoke", unimplementedFunc),
-    /* 57 */ SyscallDesc("symlink", unimplementedFunc),
-    /* 58 */ SyscallDesc("readlink", unimplementedFunc),
-    /* 59 */ SyscallDesc("execve", unimplementedFunc),
-    /* 60 */ SyscallDesc("umask", unimplementedFunc),
-    /* 61 */ SyscallDesc("chroot", unimplementedFunc),
-    /* 62 */ SyscallDesc("old_fstat", unimplementedFunc),
-    /* 63 */ SyscallDesc("getpgrp", unimplementedFunc),
-    /* 64 */ SyscallDesc("getpagesize", getpagesizeFunc),
-    /* 65 */ SyscallDesc("mremap", unimplementedFunc),
-    /* 66 */ SyscallDesc("vfork", unimplementedFunc),
-    /* 67 */ SyscallDesc("pre_F64_stat", unimplementedFunc),
-    /* 68 */ SyscallDesc("pre_F64_lstat", unimplementedFunc),
-    /* 69 */ SyscallDesc("sbrk", unimplementedFunc),
-    /* 70 */ SyscallDesc("sstk", unimplementedFunc),
-    /* 71 */ SyscallDesc("mmap", mmapFunc),
-    /* 72 */ SyscallDesc("ovadvise", unimplementedFunc),
-    /* 73 */ SyscallDesc("munmap", unimplementedFunc),
-    /* 74 */ SyscallDesc("mprotect", ignoreFunc),
-    /* 75 */ SyscallDesc("madvise", unimplementedFunc),
-    /* 76 */ SyscallDesc("old_vhangup", unimplementedFunc),
-    /* 77 */ SyscallDesc("kmodcall", unimplementedFunc),
-    /* 78 */ SyscallDesc("mincore", unimplementedFunc),
-    /* 79 */ SyscallDesc("getgroups", unimplementedFunc),
-    /* 80 */ SyscallDesc("setgroups", unimplementedFunc),
-    /* 81 */ SyscallDesc("old_getpgrp", unimplementedFunc),
-    /* 82 */ SyscallDesc("setpgrp", unimplementedFunc),
-    /* 83 */ SyscallDesc("setitimer", unimplementedFunc),
-    /* 84 */ SyscallDesc("old_wait", unimplementedFunc),
-    /* 85 */ SyscallDesc("table", tableFunc),
-    /* 86 */ SyscallDesc("getitimer", unimplementedFunc),
-    /* 87 */ SyscallDesc("gethostname", gethostnameFunc),
-    /* 88 */ SyscallDesc("sethostname", unimplementedFunc),
-    /* 89 */ SyscallDesc("getdtablesize", unimplementedFunc),
-    /* 90 */ SyscallDesc("dup2", unimplementedFunc),
-    /* 91 */ SyscallDesc("pre_F64_fstat", unimplementedFunc),
-    /* 92 */ SyscallDesc("fcntl", fcntlFunc),
-    /* 93 */ SyscallDesc("select", unimplementedFunc),
-    /* 94 */ SyscallDesc("poll", unimplementedFunc),
-    /* 95 */ SyscallDesc("fsync", unimplementedFunc),
-    /* 96 */ SyscallDesc("setpriority", unimplementedFunc),
-    /* 97 */ SyscallDesc("socket", unimplementedFunc),
-    /* 98 */ SyscallDesc("connect", unimplementedFunc),
-    /* 99 */ SyscallDesc("old_accept", unimplementedFunc),
-    /* 100 */ SyscallDesc("getpriority", unimplementedFunc),
-    /* 101 */ SyscallDesc("old_send", unimplementedFunc),
-    /* 102 */ SyscallDesc("old_recv", unimplementedFunc),
-    /* 103 */ SyscallDesc("sigreturn", sigreturnFunc, SyscallDesc::SuppressReturnValue),
-    /* 104 */ SyscallDesc("bind", unimplementedFunc),
-    /* 105 */ SyscallDesc("setsockopt", unimplementedFunc),
-    /* 106 */ SyscallDesc("listen", unimplementedFunc),
-    /* 107 */ SyscallDesc("plock", unimplementedFunc),
-    /* 108 */ SyscallDesc("old_sigvec", unimplementedFunc),
-    /* 109 */ SyscallDesc("old_sigblock", unimplementedFunc),
-    /* 110 */ SyscallDesc("old_sigsetmask", unimplementedFunc),
-    /* 111 */ SyscallDesc("sigsuspend", unimplementedFunc),
-    /* 112 */ SyscallDesc("sigstack", ignoreFunc),
-    /* 113 */ SyscallDesc("old_recvmsg", unimplementedFunc),
-    /* 114 */ SyscallDesc("old_sendmsg", unimplementedFunc),
-    /* 115 */ SyscallDesc("obsolete vtrace", unimplementedFunc),
-    /* 116 */ SyscallDesc("gettimeofday", gettimeofdayFunc),
-    /* 117 */ SyscallDesc("getrusage", getrusageFunc),
-    /* 118 */ SyscallDesc("getsockopt", unimplementedFunc),
-    /* 119 */ SyscallDesc("numa_syscalls", unimplementedFunc),
-    /* 120 */ SyscallDesc("readv", unimplementedFunc),
-    /* 121 */ SyscallDesc("writev", unimplementedFunc),
-    /* 122 */ SyscallDesc("settimeofday", unimplementedFunc),
-    /* 123 */ SyscallDesc("fchown", unimplementedFunc),
-    /* 124 */ SyscallDesc("fchmod", unimplementedFunc),
-    /* 125 */ SyscallDesc("old_recvfrom", unimplementedFunc),
-    /* 126 */ SyscallDesc("setreuid", unimplementedFunc),
-    /* 127 */ SyscallDesc("setregid", unimplementedFunc),
-    /* 128 */ SyscallDesc("rename", unimplementedFunc),
-    /* 129 */ SyscallDesc("truncate", unimplementedFunc),
-    /* 130 */ SyscallDesc("ftruncate", unimplementedFunc),
-    /* 131 */ SyscallDesc("flock", unimplementedFunc),
-    /* 132 */ SyscallDesc("setgid", unimplementedFunc),
-    /* 133 */ SyscallDesc("sendto", unimplementedFunc),
-    /* 134 */ SyscallDesc("shutdown", unimplementedFunc),
-    /* 135 */ SyscallDesc("socketpair", unimplementedFunc),
-    /* 136 */ SyscallDesc("mkdir", unimplementedFunc),
-    /* 137 */ SyscallDesc("rmdir", unimplementedFunc),
-    /* 138 */ SyscallDesc("utimes", unimplementedFunc),
-    /* 139 */ SyscallDesc("obsolete 4.2 sigreturn", unimplementedFunc),
-    /* 140 */ SyscallDesc("adjtime", unimplementedFunc),
-    /* 141 */ SyscallDesc("old_getpeername", unimplementedFunc),
-    /* 142 */ SyscallDesc("gethostid", unimplementedFunc),
-    /* 143 */ SyscallDesc("sethostid", unimplementedFunc),
-    /* 144 */ SyscallDesc("getrlimit", getrlimitFunc),
-    /* 145 */ SyscallDesc("setrlimit", unimplementedFunc),
-    /* 146 */ SyscallDesc("old_killpg", unimplementedFunc),
-    /* 147 */ SyscallDesc("setsid", unimplementedFunc),
-    /* 148 */ SyscallDesc("quotactl", unimplementedFunc),
-    /* 149 */ SyscallDesc("oldquota", unimplementedFunc),
-    /* 150 */ SyscallDesc("old_getsockname", unimplementedFunc),
-    /* 151 */ SyscallDesc("pread", unimplementedFunc),
-    /* 152 */ SyscallDesc("pwrite", unimplementedFunc),
-    /* 153 */ SyscallDesc("pid_block", unimplementedFunc),
-    /* 154 */ SyscallDesc("pid_unblock", unimplementedFunc),
-    /* 155 */ SyscallDesc("signal_urti", unimplementedFunc),
-    /* 156 */ SyscallDesc("sigaction", ignoreFunc),
-    /* 157 */ SyscallDesc("sigwaitprim", unimplementedFunc),
-    /* 158 */ SyscallDesc("nfssvc", unimplementedFunc),
-    /* 159 */ SyscallDesc("getdirentries", getdirentriesFunc),
-    /* 160 */ SyscallDesc("pre_F64_statfs", unimplementedFunc),
-    /* 161 */ SyscallDesc("pre_F64_fstatfs", unimplementedFunc),
-    /* 162 */ SyscallDesc("unknown #162", unimplementedFunc),
-    /* 163 */ SyscallDesc("async_daemon", unimplementedFunc),
-    /* 164 */ SyscallDesc("getfh", unimplementedFunc),
-    /* 165 */ SyscallDesc("getdomainname", unimplementedFunc),
-    /* 166 */ SyscallDesc("setdomainname", unimplementedFunc),
-    /* 167 */ SyscallDesc("unknown #167", unimplementedFunc),
-    /* 168 */ SyscallDesc("unknown #168", unimplementedFunc),
-    /* 169 */ SyscallDesc("exportfs", unimplementedFunc),
-    /* 170 */ SyscallDesc("unknown #170", unimplementedFunc),
-    /* 171 */ SyscallDesc("unknown #171", unimplementedFunc),
-    /* 172 */ SyscallDesc("unknown #172", unimplementedFunc),
-    /* 173 */ SyscallDesc("unknown #173", unimplementedFunc),
-    /* 174 */ SyscallDesc("unknown #174", unimplementedFunc),
-    /* 175 */ SyscallDesc("unknown #175", unimplementedFunc),
-    /* 176 */ SyscallDesc("unknown #176", unimplementedFunc),
-    /* 177 */ SyscallDesc("unknown #177", unimplementedFunc),
-    /* 178 */ SyscallDesc("unknown #178", unimplementedFunc),
-    /* 179 */ SyscallDesc("unknown #179", unimplementedFunc),
-    /* 180 */ SyscallDesc("unknown #180", unimplementedFunc),
-    /* 181 */ SyscallDesc("alt_plock", unimplementedFunc),
-    /* 182 */ SyscallDesc("unknown #182", unimplementedFunc),
-    /* 183 */ SyscallDesc("unknown #183", unimplementedFunc),
-    /* 184 */ SyscallDesc("getmnt", unimplementedFunc),
-    /* 185 */ SyscallDesc("unknown #185", unimplementedFunc),
-    /* 186 */ SyscallDesc("unknown #186", unimplementedFunc),
-    /* 187 */ SyscallDesc("alt_sigpending", unimplementedFunc),
-    /* 188 */ SyscallDesc("alt_setsid", unimplementedFunc),
-    /* 189 */ SyscallDesc("unknown #189", unimplementedFunc),
-    /* 190 */ SyscallDesc("unknown #190", unimplementedFunc),
-    /* 191 */ SyscallDesc("unknown #191", unimplementedFunc),
-    /* 192 */ SyscallDesc("unknown #192", unimplementedFunc),
-    /* 193 */ SyscallDesc("unknown #193", unimplementedFunc),
-    /* 194 */ SyscallDesc("unknown #194", unimplementedFunc),
-    /* 195 */ SyscallDesc("unknown #195", unimplementedFunc),
-    /* 196 */ SyscallDesc("unknown #196", unimplementedFunc),
-    /* 197 */ SyscallDesc("unknown #197", unimplementedFunc),
-    /* 198 */ SyscallDesc("unknown #198", unimplementedFunc),
-    /* 199 */ SyscallDesc("swapon", unimplementedFunc),
-    /* 200 */ SyscallDesc("msgctl", unimplementedFunc),
-    /* 201 */ SyscallDesc("msgget", unimplementedFunc),
-    /* 202 */ SyscallDesc("msgrcv", unimplementedFunc),
-    /* 203 */ SyscallDesc("msgsnd", unimplementedFunc),
-    /* 204 */ SyscallDesc("semctl", unimplementedFunc),
-    /* 205 */ SyscallDesc("semget", unimplementedFunc),
-    /* 206 */ SyscallDesc("semop", unimplementedFunc),
-    /* 207 */ SyscallDesc("uname", unameFunc),
-    /* 208 */ SyscallDesc("lchown", unimplementedFunc),
-    /* 209 */ SyscallDesc("shmat", unimplementedFunc),
-    /* 210 */ SyscallDesc("shmctl", unimplementedFunc),
-    /* 211 */ SyscallDesc("shmdt", unimplementedFunc),
-    /* 212 */ SyscallDesc("shmget", unimplementedFunc),
-    /* 213 */ SyscallDesc("mvalid", unimplementedFunc),
-    /* 214 */ SyscallDesc("getaddressconf", unimplementedFunc),
-    /* 215 */ SyscallDesc("msleep", unimplementedFunc),
-    /* 216 */ SyscallDesc("mwakeup", unimplementedFunc),
-    /* 217 */ SyscallDesc("msync", unimplementedFunc),
-    /* 218 */ SyscallDesc("signal", unimplementedFunc),
-    /* 219 */ SyscallDesc("utc_gettime", unimplementedFunc),
-    /* 220 */ SyscallDesc("utc_adjtime", unimplementedFunc),
-    /* 221 */ SyscallDesc("unknown #221", unimplementedFunc),
-    /* 222 */ SyscallDesc("security", unimplementedFunc),
-    /* 223 */ SyscallDesc("kloadcall", unimplementedFunc),
-    /* 224 */ SyscallDesc("stat", statFunc),
-    /* 225 */ SyscallDesc("lstat", lstatFunc),
-    /* 226 */ SyscallDesc("fstat", fstatFunc),
-    /* 227 */ SyscallDesc("statfs", unimplementedFunc),
-    /* 228 */ SyscallDesc("fstatfs", unimplementedFunc),
-    /* 229 */ SyscallDesc("getfsstat", unimplementedFunc),
-    /* 230 */ SyscallDesc("gettimeofday64", unimplementedFunc),
-    /* 231 */ SyscallDesc("settimeofday64", unimplementedFunc),
-    /* 232 */ SyscallDesc("unknown #232", unimplementedFunc),
-    /* 233 */ SyscallDesc("getpgid", unimplementedFunc),
-    /* 234 */ SyscallDesc("getsid", unimplementedFunc),
-    /* 235 */ SyscallDesc("sigaltstack", ignoreFunc),
-    /* 236 */ SyscallDesc("waitid", unimplementedFunc),
-    /* 237 */ SyscallDesc("priocntlset", unimplementedFunc),
-    /* 238 */ SyscallDesc("sigsendset", unimplementedFunc),
-    /* 239 */ SyscallDesc("set_speculative", unimplementedFunc),
-    /* 240 */ SyscallDesc("msfs_syscall", unimplementedFunc),
-    /* 241 */ SyscallDesc("sysinfo", unimplementedFunc),
-    /* 242 */ SyscallDesc("uadmin", unimplementedFunc),
-    /* 243 */ SyscallDesc("fuser", unimplementedFunc),
-    /* 244 */ SyscallDesc("proplist_syscall", unimplementedFunc),
-    /* 245 */ SyscallDesc("ntp_adjtime", unimplementedFunc),
-    /* 246 */ SyscallDesc("ntp_gettime", unimplementedFunc),
-    /* 247 */ SyscallDesc("pathconf", unimplementedFunc),
-    /* 248 */ SyscallDesc("fpathconf", unimplementedFunc),
-    /* 249 */ SyscallDesc("sync2", unimplementedFunc),
-    /* 250 */ SyscallDesc("uswitch", unimplementedFunc),
-    /* 251 */ SyscallDesc("usleep_thread", unimplementedFunc),
-    /* 252 */ SyscallDesc("audcntl", unimplementedFunc),
-    /* 253 */ SyscallDesc("audgen", unimplementedFunc),
-    /* 254 */ SyscallDesc("sysfs", unimplementedFunc),
-    /* 255 */ SyscallDesc("subsys_info", unimplementedFunc),
-    /* 256 */ SyscallDesc("getsysinfo", getsysinfoFunc),
-    /* 257 */ SyscallDesc("setsysinfo", unimplementedFunc),
-    /* 258 */ SyscallDesc("afs_syscall", unimplementedFunc),
-    /* 259 */ SyscallDesc("swapctl", unimplementedFunc),
-    /* 260 */ SyscallDesc("memcntl", unimplementedFunc),
-    /* 261 */ SyscallDesc("fdatasync", unimplementedFunc),
-    /* 262 */ SyscallDesc("oflock", unimplementedFunc),
-    /* 263 */ SyscallDesc("F64_readv", unimplementedFunc),
-    /* 264 */ SyscallDesc("F64_writev", unimplementedFunc),
-    /* 265 */ SyscallDesc("cdslxlate", unimplementedFunc),
-    /* 266 */ SyscallDesc("sendfile", unimplementedFunc),
-};
-
-const int Num_Syscall_Descs = sizeof(syscallDescs) / sizeof(SyscallDesc);
-
-const int Max_Syscall_Desc = Num_Syscall_Descs - 1;
+static const int Num_Syscall_Descs;
+static const int Max_Syscall_Desc;
 
 //
 // Mach syscalls -- identified by negated syscall numbers
 //
 
 // Create a stack region for a thread.
+static
 int
 stack_createFunc(SyscallDesc *desc, int callnum, Process *process,
                  ExecContext *xc)
 {
-    TypedBufferArg<OSF::vm_stack> argp(getArg(xc, 0));
+    TypedBufferArg<Tru64::vm_stack> argp(xc->getSyscallArg(0));
 
     argp.copyIn(xc->mem);
 
@@ -1212,6 +777,7 @@ stack_createFunc(SyscallDesc *desc, int callnum, Process *process,
     return 0;
 }
 
+static
 const int NXM_LIB_VERSION = 301003;
 
 //
@@ -1219,12 +785,13 @@ const int NXM_LIB_VERSION = 301003;
 // schedulers by creating a shared-memory region.  The shared memory
 // region has several structs, some global, some per-RAD, some per-VP.
 //
+static
 int
 nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
                  ExecContext *xc)
 {
-    TypedBufferArg<OSF::nxm_task_attr> attrp(getArg(xc, 0));
-    TypedBufferArg<Addr> configptr_ptr(getArg(xc, 1));
+    TypedBufferArg<Tru64::nxm_task_attr> attrp(xc->getSyscallArg(0));
+    TypedBufferArg<Addr> configptr_ptr(xc->getSyscallArg(1));
 
     attrp.copyIn(xc->mem);
 
@@ -1235,9 +802,9 @@ nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
         abort();
     }
 
-    if (attrp->flags != OSF::NXM_TASK_INIT_VP) {
+    if (attrp->flags != Tru64::NXM_TASK_INIT_VP) {
         cerr << "nxm_task_init: bad flag value " << attrp->flags
-             << " (expected " << OSF::NXM_TASK_INIT_VP << ")" << endl;
+             << " (expected " << Tru64::NXM_TASK_INIT_VP << ")" << endl;
         abort();
     }
 
@@ -1245,21 +812,21 @@ nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
     Addr cur_addr = base_addr; // next addresses to use
     // first comes the config_info struct
     Addr config_addr = cur_addr;
-    cur_addr += sizeof(OSF::nxm_config_info);
+    cur_addr += sizeof(Tru64::nxm_config_info);
     // next comes the per-cpu state vector
     Addr slot_state_addr = cur_addr;
-    int slot_state_size = process->numCpus() * sizeof(OSF::nxm_slot_state_t);
+    int slot_state_size = process->numCpus() * sizeof(Tru64::nxm_slot_state_t);
     cur_addr += slot_state_size;
     // now the per-RAD state struct (we only support one RAD)
     cur_addr = 0x14000;	// bump up addr for alignment
     Addr rad_state_addr = cur_addr;
     int rad_state_size =
-        (sizeof(OSF::nxm_shared)
-         + (process->numCpus()-1) * sizeof(OSF::nxm_sched_state));
+        (sizeof(Tru64::nxm_shared)
+         + (process->numCpus()-1) * sizeof(Tru64::nxm_sched_state));
     cur_addr += rad_state_size;
 
     // now initialize a config_info struct and copy it out to user space
-    TypedBufferArg<OSF::nxm_config_info> config(config_addr);
+    TypedBufferArg<Tru64::nxm_config_info> config(config_addr);
 
     config->nxm_nslots_per_rad = process->numCpus();
     config->nxm_nrads = 1;	// only one RAD in our system!
@@ -1269,11 +836,11 @@ nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
     config.copyOut(xc->mem);
 
     // initialize the slot_state array and copy it out
-    TypedBufferArg<OSF::nxm_slot_state_t> slot_state(slot_state_addr,
+    TypedBufferArg<Tru64::nxm_slot_state_t> slot_state(slot_state_addr,
                                                      slot_state_size);
     for (int i = 0; i < process->numCpus(); ++i) {
         // CPU 0 is bound to the calling process; all others are available
-        slot_state[i] = (i == 0) ? OSF::NXM_SLOT_BOUND : OSF::NXM_SLOT_AVAIL;
+        slot_state[i] = (i == 0) ? Tru64::NXM_SLOT_BOUND : Tru64::NXM_SLOT_AVAIL;
     }
 
     slot_state.copyOut(xc->mem);
@@ -1281,14 +848,14 @@ nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
     // same for the per-RAD "shared" struct.  Note that we need to
     // allocate extra bytes for the per-VP array which is embedded at
     // the end.
-    TypedBufferArg<OSF::nxm_shared> rad_state(rad_state_addr,
+    TypedBufferArg<Tru64::nxm_shared> rad_state(rad_state_addr,
                                               rad_state_size);
 
     rad_state->nxm_callback = attrp->nxm_callback;
     rad_state->nxm_version = attrp->nxm_version;
     rad_state->nxm_uniq_offset = attrp->nxm_uniq_offset;
     for (int i = 0; i < process->numCpus(); ++i) {
-        OSF::nxm_sched_state *ssp = &rad_state->nxm_ss[i];
+        Tru64::nxm_sched_state *ssp = &rad_state->nxm_ss[i];
         ssp->nxm_u.sigmask = 0;
         ssp->nxm_u.sig = 0;
         ssp->nxm_u.flags = 0;
@@ -1324,7 +891,7 @@ nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
 
 static void
 init_exec_context(ExecContext *ec,
-                  OSF::nxm_thread_attr *attrp, uint64_t uniq_val)
+                  Tru64::nxm_thread_attr *attrp, uint64_t uniq_val)
 {
     memset(&ec->regs, 0, sizeof(ec->regs));
 
@@ -1339,13 +906,14 @@ init_exec_context(ExecContext *ec,
     ec->setStatus(ExecContext::Active);
 }
 
+static
 int
 nxm_thread_createFunc(SyscallDesc *desc, int callnum, Process *process,
                       ExecContext *xc)
 {
-    TypedBufferArg<OSF::nxm_thread_attr> attrp(getArg(xc, 0));
-    TypedBufferArg<uint64_t> kidp(getArg(xc, 1));
-    int thread_index = getArg(xc, 2);
+    TypedBufferArg<Tru64::nxm_thread_attr> attrp(xc->getSyscallArg(0));
+    TypedBufferArg<uint64_t> kidp(xc->getSyscallArg(1));
+    int thread_index = xc->getSyscallArg(2);
 
     // get attribute args
     attrp.copyIn(xc->mem);
@@ -1368,16 +936,16 @@ nxm_thread_createFunc(SyscallDesc *desc, int callnum, Process *process,
     // We don't have that luxury, so we just copy it in and then
     // back out again.
     int rad_state_size =
-        (sizeof(OSF::nxm_shared) +
-         (process->numCpus()-1) * sizeof(OSF::nxm_sched_state));
+        (sizeof(Tru64::nxm_shared) +
+         (process->numCpus()-1) * sizeof(Tru64::nxm_sched_state));
 
-    TypedBufferArg<OSF::nxm_shared> rad_state(0x14000,
+    TypedBufferArg<Tru64::nxm_shared> rad_state(0x14000,
                                               rad_state_size);
     rad_state.copyIn(xc->mem);
 
     uint64_t uniq_val = attrp->pthid - rad_state->nxm_uniq_offset;
 
-    if (attrp->type == OSF::NXM_TYPE_MANAGER) {
+    if (attrp->type == Tru64::NXM_TYPE_MANAGER) {
         // DEC pthreads seems to always create one of these (in
         // addition to N application threads), but we don't use it,
         // so don't bother creating it.
@@ -1387,34 +955,34 @@ nxm_thread_createFunc(SyscallDesc *desc, int callnum, Process *process,
         kidp.copyOut(xc->mem);
 
         return 0;
-    } else if (attrp->type == OSF::NXM_TYPE_VP) {
+    } else if (attrp->type == Tru64::NXM_TYPE_VP) {
         // A real "virtual processor" kernel thread.  Need to fork
         // this thread on another CPU.
-        OSF::nxm_sched_state *ssp = &rad_state->nxm_ss[thread_index];
+        Tru64::nxm_sched_state *ssp = &rad_state->nxm_ss[thread_index];
 
         if (ssp->nxm_u.nxm_active != 0)
-            return OSF::KERN_NOT_RECEIVER;
+            return Tru64::KERN_NOT_RECEIVER;
 
         ssp->nxm_u.pth_id = attrp->pthid;
         ssp->nxm_u.nxm_active = uniq_val | 1;
 
         rad_state.copyOut(xc->mem);
 
-        Addr slot_state_addr = 0x12000 + sizeof(OSF::nxm_config_info);
-        int slot_state_size = process->numCpus() * sizeof(OSF::nxm_slot_state_t);
+        Addr slot_state_addr = 0x12000 + sizeof(Tru64::nxm_config_info);
+        int slot_state_size = process->numCpus() * sizeof(Tru64::nxm_slot_state_t);
 
-        TypedBufferArg<OSF::nxm_slot_state_t> slot_state(slot_state_addr,
+        TypedBufferArg<Tru64::nxm_slot_state_t> slot_state(slot_state_addr,
                                                          slot_state_size);
 
         slot_state.copyIn(xc->mem);
 
-        if (slot_state[thread_index] != OSF::NXM_SLOT_AVAIL) {
+        if (slot_state[thread_index] != Tru64::NXM_SLOT_AVAIL) {
             cerr << "nxm_thread_createFunc: requested VP slot "
                  << thread_index << " not available!" << endl;
             fatal("");
         }
 
-        slot_state[thread_index] = OSF::NXM_SLOT_BOUND;
+        slot_state[thread_index] = Tru64::NXM_SLOT_BOUND;
 
         slot_state.copyOut(xc->mem);
 
@@ -1449,6 +1017,7 @@ nxm_thread_createFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 nxm_idleFunc(SyscallDesc *desc, int callnum, Process *process,
              ExecContext *xc)
@@ -1456,15 +1025,16 @@ nxm_idleFunc(SyscallDesc *desc, int callnum, Process *process,
     return 0;
 }
 
+static
 int
 nxm_thread_blockFunc(SyscallDesc *desc, int callnum, Process *process,
                      ExecContext *xc)
 {
-    uint64_t tid = getArg(xc, 0);
-    uint64_t secs = getArg(xc, 1);
-    uint64_t flags = getArg(xc, 2);
-    uint64_t action = getArg(xc, 3);
-    uint64_t usecs = getArg(xc, 4);
+    uint64_t tid = xc->getSyscallArg(0);
+    uint64_t secs = xc->getSyscallArg(1);
+    uint64_t flags = xc->getSyscallArg(2);
+    uint64_t action = xc->getSyscallArg(3);
+    uint64_t usecs = xc->getSyscallArg(4);
 
     cout << xc->cpu->name() << ": nxm_thread_block " << tid << " " << secs
          << " " << flags << " " << action << " " << usecs << endl;
@@ -1473,15 +1043,16 @@ nxm_thread_blockFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 nxm_blockFunc(SyscallDesc *desc, int callnum, Process *process,
               ExecContext *xc)
 {
-    Addr uaddr = getArg(xc, 0);
-    uint64_t val = getArg(xc, 1);
-    uint64_t secs = getArg(xc, 2);
-    uint64_t usecs = getArg(xc, 3);
-    uint64_t flags = getArg(xc, 4);
+    Addr uaddr = xc->getSyscallArg(0);
+    uint64_t val = xc->getSyscallArg(1);
+    uint64_t secs = xc->getSyscallArg(2);
+    uint64_t usecs = xc->getSyscallArg(3);
+    uint64_t flags = xc->getSyscallArg(4);
 
     BaseCPU *cpu = xc->cpu;
 
@@ -1493,11 +1064,12 @@ nxm_blockFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 nxm_unblockFunc(SyscallDesc *desc, int callnum, Process *process,
               ExecContext *xc)
 {
-    Addr uaddr = getArg(xc, 0);
+    Addr uaddr = xc->getSyscallArg(0);
 
     cout << xc->cpu->name() << ": nxm_unblock "
          << hex << uaddr << dec << endl;
@@ -1506,6 +1078,7 @@ nxm_unblockFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 swtch_priFunc(SyscallDesc *desc, int callnum, Process *process,
               ExecContext *xc)
@@ -1588,11 +1161,12 @@ m5_unlock_mutex(Addr uaddr, Process *process, ExecContext *xc)
 }
 
 
+static
 int
 m5_mutex_lockFunc(SyscallDesc *desc, int callnum, Process *process,
                   ExecContext *xc)
 {
-    Addr uaddr = getArg(xc, 0);
+    Addr uaddr = xc->getSyscallArg(0);
 
     m5_lock_mutex(uaddr, process, xc);
 
@@ -1603,11 +1177,12 @@ m5_mutex_lockFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 m5_mutex_trylockFunc(SyscallDesc *desc, int callnum, Process *process,
                      ExecContext *xc)
 {
-    Addr uaddr = getArg(xc, 0);
+    Addr uaddr = xc->getSyscallArg(0);
     TypedBufferArg<uint64_t> lockp(uaddr);
 
     lockp.copyIn(xc->mem);
@@ -1623,11 +1198,12 @@ m5_mutex_trylockFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 m5_mutex_unlockFunc(SyscallDesc *desc, int callnum, Process *process,
                     ExecContext *xc)
 {
-    Addr uaddr = getArg(xc, 0);
+    Addr uaddr = xc->getSyscallArg(0);
 
     m5_unlock_mutex(uaddr, process, xc);
 
@@ -1635,11 +1211,12 @@ m5_mutex_unlockFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 m5_cond_signalFunc(SyscallDesc *desc, int callnum, Process *process,
                    ExecContext *xc)
 {
-    Addr cond_addr = getArg(xc, 0);
+    Addr cond_addr = xc->getSyscallArg(0);
 
     // Wqake up one process waiting on the condition variable.
     activate_waiting_context(cond_addr, process);
@@ -1648,11 +1225,12 @@ m5_cond_signalFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 m5_cond_broadcastFunc(SyscallDesc *desc, int callnum, Process *process,
                       ExecContext *xc)
 {
-    Addr cond_addr = getArg(xc, 0);
+    Addr cond_addr = xc->getSyscallArg(0);
 
     // Wake up all processes waiting on the condition variable.
     activate_waiting_context(cond_addr, process, true);
@@ -1661,12 +1239,13 @@ m5_cond_broadcastFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 m5_cond_waitFunc(SyscallDesc *desc, int callnum, Process *process,
                  ExecContext *xc)
 {
-    Addr cond_addr = getArg(xc, 0);
-    Addr lock_addr = getArg(xc, 1);
+    Addr cond_addr = xc->getSyscallArg(0);
+    Addr lock_addr = xc->getSyscallArg(1);
     TypedBufferArg<uint64_t> condp(cond_addr);
     TypedBufferArg<uint64_t> lockp(lock_addr);
 
@@ -1683,6 +1262,7 @@ m5_cond_waitFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
+static
 int
 m5_thread_exitFunc(SyscallDesc *desc, int callnum, Process *process,
                    ExecContext *xc)
@@ -1694,7 +1274,374 @@ m5_thread_exitFunc(SyscallDesc *desc, int callnum, Process *process,
 }
 
 
-SyscallDesc machSyscallDescs[] = {
+static SyscallDesc machSyscallDescs[];
+
+static const int Num_Mach_Syscall_Descs;
+static const int Max_Mach_Syscall_Desc;
+
+// Since negated values are used to identify Mach syscalls, the
+// minimum (signed) valid syscall number is the negated max Mach
+// syscall number.
+static const int Min_Syscall_Desc;
+
+//
+// helper function for invoking syscalls
+//
+static
+void
+doSyscall(int callnum, Process *process, ExecContext *xc)
+{
+    if (callnum < Min_Syscall_Desc || callnum > Max_Syscall_Desc) {
+        cerr << "Syscall " << callnum << " out of range" << endl;
+        abort();
+    }
+
+    SyscallDesc *desc =
+        (callnum < 0) ? &machSyscallDescs[-callnum] : &syscallDescs[callnum];
+
+    desc->doSyscall(callnum, process, xc);
+}
+
+//
+// Indirect syscall invocation (call #0)
+//
+static
+int
+indirectSyscallFunc(SyscallDesc *desc, int callnum, Process *process,
+                    ExecContext *xc)
+{
+    int new_callnum = xc->getSyscallArg(0);
+
+    for (int i = 0; i < 5; ++i)
+        xc->setSyscallArg(i, xc->getSyscallArg(i+1));
+
+    doSyscall(new_callnum, process, xc);
+
+    return 0;
+}
+
+
+};  // class Tru64
+
+
+// open(2) flags translation table
+OpenFlagTransTable Tru64::openFlagTable[] = {
+  /* target flag */	/* host flag */
+#ifdef _MSC_VER
+  { Tru64::TGT_O_RDONLY,	_O_RDONLY },
+  { Tru64::TGT_O_WRONLY,	_O_WRONLY },
+  { Tru64::TGT_O_RDWR,		_O_RDWR },
+  { Tru64::TGT_O_APPEND,	_O_APPEND },
+  { Tru64::TGT_O_CREAT,		_O_CREAT },
+  { Tru64::TGT_O_TRUNC,			_O_TRUNC },
+  { Tru64::TGT_O_EXCL,			_O_EXCL },
+#ifdef _O_NONBLOCK
+  { Tru64::TGT_O_NONBLOCK,	_O_NONBLOCK },
+#endif
+#ifdef _O_NOCTTY
+  { Tru64::TGT_O_NOCTTY,	_O_NOCTTY },
+#endif
+#ifdef _O_SYNC
+  { Tru64::TGT_O_SYNC,	_O_SYNC },
+#endif
+#else /* !_MSC_VER */
+  { Tru64::TGT_O_RDONLY,	O_RDONLY },
+  { Tru64::TGT_O_WRONLY,	O_WRONLY },
+  { Tru64::TGT_O_RDWR,		O_RDWR },
+  { Tru64::TGT_O_APPEND,	O_APPEND },
+  { Tru64::TGT_O_CREAT,		O_CREAT },
+  { Tru64::TGT_O_TRUNC,		O_TRUNC },
+  { Tru64::TGT_O_EXCL,		O_EXCL },
+  { Tru64::TGT_O_NONBLOCK,	O_NONBLOCK },
+  { Tru64::TGT_O_NOCTTY,	O_NOCTTY },
+#ifdef O_SYNC
+  { Tru64::TGT_O_SYNC,		O_SYNC },
+#endif
+#endif /* _MSC_VER */
+};
+
+const int Tru64::NUM_OPEN_FLAGS = (sizeof(Tru64::openFlagTable)/sizeof(Tru64::openFlagTable[0]));
+
+const char *Tru64::hostname = "m5.eecs.umich.edu";
+
+SyscallDesc Tru64::syscallDescs[] = {
+    /* 0 */ SyscallDesc("syscall (#0)", indirectSyscallFunc,
+                        SyscallDesc::SuppressReturnValue),
+    /* 1 */ SyscallDesc("exit", exitFunc),
+    /* 2 */ SyscallDesc("fork", unimplementedFunc),
+    /* 3 */ SyscallDesc("read", readFunc),
+    /* 4 */ SyscallDesc("write", writeFunc),
+    /* 5 */ SyscallDesc("old_open", unimplementedFunc),
+    /* 6 */ SyscallDesc("close", closeFunc),
+    /* 7 */ SyscallDesc("wait4", unimplementedFunc),
+    /* 8 */ SyscallDesc("old_creat", unimplementedFunc),
+    /* 9 */ SyscallDesc("link", unimplementedFunc),
+    /* 10 */ SyscallDesc("unlink", unimplementedFunc),
+    /* 11 */ SyscallDesc("execv", unimplementedFunc),
+    /* 12 */ SyscallDesc("chdir", unimplementedFunc),
+    /* 13 */ SyscallDesc("fchdir", unimplementedFunc),
+    /* 14 */ SyscallDesc("mknod", unimplementedFunc),
+    /* 15 */ SyscallDesc("chmod", unimplementedFunc),
+    /* 16 */ SyscallDesc("chown", unimplementedFunc),
+    /* 17 */ SyscallDesc("obreak", obreakFunc),
+    /* 18 */ SyscallDesc("pre_F64_getfsstat", unimplementedFunc),
+    /* 19 */ SyscallDesc("lseek", lseekFunc),
+    /* 20 */ SyscallDesc("getpid", getpidFunc),
+    /* 21 */ SyscallDesc("mount", unimplementedFunc),
+    /* 22 */ SyscallDesc("unmount", unimplementedFunc),
+    /* 23 */ SyscallDesc("setuid", setuidFunc),
+    /* 24 */ SyscallDesc("getuid", getuidFunc),
+    /* 25 */ SyscallDesc("exec_with_loader", unimplementedFunc),
+    /* 26 */ SyscallDesc("ptrace", unimplementedFunc),
+    /* 27 */ SyscallDesc("recvmsg", unimplementedFunc),
+    /* 28 */ SyscallDesc("sendmsg", unimplementedFunc),
+    /* 29 */ SyscallDesc("recvfrom", unimplementedFunc),
+    /* 30 */ SyscallDesc("accept", unimplementedFunc),
+    /* 31 */ SyscallDesc("getpeername", unimplementedFunc),
+    /* 32 */ SyscallDesc("getsockname", unimplementedFunc),
+    /* 33 */ SyscallDesc("access", unimplementedFunc),
+    /* 34 */ SyscallDesc("chflags", unimplementedFunc),
+    /* 35 */ SyscallDesc("fchflags", unimplementedFunc),
+    /* 36 */ SyscallDesc("sync", unimplementedFunc),
+    /* 37 */ SyscallDesc("kill", unimplementedFunc),
+    /* 38 */ SyscallDesc("old_stat", unimplementedFunc),
+    /* 39 */ SyscallDesc("setpgid", unimplementedFunc),
+    /* 40 */ SyscallDesc("old_lstat", unimplementedFunc),
+    /* 41 */ SyscallDesc("dup", unimplementedFunc),
+    /* 42 */ SyscallDesc("pipe", unimplementedFunc),
+    /* 43 */ SyscallDesc("set_program_attributes", unimplementedFunc),
+    /* 44 */ SyscallDesc("profil", unimplementedFunc),
+    /* 45 */ SyscallDesc("open", openFunc<Tru64>),
+    /* 46 */ SyscallDesc("obsolete osigaction", unimplementedFunc),
+    /* 47 */ SyscallDesc("getgid", getgidFunc),
+    /* 48 */ SyscallDesc("sigprocmask", ignoreFunc),
+    /* 49 */ SyscallDesc("getlogin", unimplementedFunc),
+    /* 50 */ SyscallDesc("setlogin", unimplementedFunc),
+    /* 51 */ SyscallDesc("acct", unimplementedFunc),
+    /* 52 */ SyscallDesc("sigpending", unimplementedFunc),
+    /* 53 */ SyscallDesc("classcntl", unimplementedFunc),
+    /* 54 */ SyscallDesc("ioctl", ioctlFunc<Tru64>),
+    /* 55 */ SyscallDesc("reboot", unimplementedFunc),
+    /* 56 */ SyscallDesc("revoke", unimplementedFunc),
+    /* 57 */ SyscallDesc("symlink", unimplementedFunc),
+    /* 58 */ SyscallDesc("readlink", unimplementedFunc),
+    /* 59 */ SyscallDesc("execve", unimplementedFunc),
+    /* 60 */ SyscallDesc("umask", unimplementedFunc),
+    /* 61 */ SyscallDesc("chroot", unimplementedFunc),
+    /* 62 */ SyscallDesc("old_fstat", unimplementedFunc),
+    /* 63 */ SyscallDesc("getpgrp", unimplementedFunc),
+    /* 64 */ SyscallDesc("getpagesize", getpagesizeFunc),
+    /* 65 */ SyscallDesc("mremap", unimplementedFunc),
+    /* 66 */ SyscallDesc("vfork", unimplementedFunc),
+    /* 67 */ SyscallDesc("pre_F64_stat", unimplementedFunc),
+    /* 68 */ SyscallDesc("pre_F64_lstat", unimplementedFunc),
+    /* 69 */ SyscallDesc("sbrk", unimplementedFunc),
+    /* 70 */ SyscallDesc("sstk", unimplementedFunc),
+    /* 71 */ SyscallDesc("mmap", mmapFunc<Tru64>),
+    /* 72 */ SyscallDesc("ovadvise", unimplementedFunc),
+    /* 73 */ SyscallDesc("munmap", munmapFunc),
+    /* 74 */ SyscallDesc("mprotect", ignoreFunc),
+    /* 75 */ SyscallDesc("madvise", unimplementedFunc),
+    /* 76 */ SyscallDesc("old_vhangup", unimplementedFunc),
+    /* 77 */ SyscallDesc("kmodcall", unimplementedFunc),
+    /* 78 */ SyscallDesc("mincore", unimplementedFunc),
+    /* 79 */ SyscallDesc("getgroups", unimplementedFunc),
+    /* 80 */ SyscallDesc("setgroups", unimplementedFunc),
+    /* 81 */ SyscallDesc("old_getpgrp", unimplementedFunc),
+    /* 82 */ SyscallDesc("setpgrp", unimplementedFunc),
+    /* 83 */ SyscallDesc("setitimer", unimplementedFunc),
+    /* 84 */ SyscallDesc("old_wait", unimplementedFunc),
+    /* 85 */ SyscallDesc("table", tableFunc),
+    /* 86 */ SyscallDesc("getitimer", unimplementedFunc),
+    /* 87 */ SyscallDesc("gethostname", gethostnameFunc),
+    /* 88 */ SyscallDesc("sethostname", unimplementedFunc),
+    /* 89 */ SyscallDesc("getdtablesize", unimplementedFunc),
+    /* 90 */ SyscallDesc("dup2", unimplementedFunc),
+    /* 91 */ SyscallDesc("pre_F64_fstat", unimplementedFunc),
+    /* 92 */ SyscallDesc("fcntl", fcntlFunc),
+    /* 93 */ SyscallDesc("select", unimplementedFunc),
+    /* 94 */ SyscallDesc("poll", unimplementedFunc),
+    /* 95 */ SyscallDesc("fsync", unimplementedFunc),
+    /* 96 */ SyscallDesc("setpriority", unimplementedFunc),
+    /* 97 */ SyscallDesc("socket", unimplementedFunc),
+    /* 98 */ SyscallDesc("connect", unimplementedFunc),
+    /* 99 */ SyscallDesc("old_accept", unimplementedFunc),
+    /* 100 */ SyscallDesc("getpriority", unimplementedFunc),
+    /* 101 */ SyscallDesc("old_send", unimplementedFunc),
+    /* 102 */ SyscallDesc("old_recv", unimplementedFunc),
+    /* 103 */ SyscallDesc("sigreturn", sigreturnFunc,
+                          SyscallDesc::SuppressReturnValue),
+    /* 104 */ SyscallDesc("bind", unimplementedFunc),
+    /* 105 */ SyscallDesc("setsockopt", unimplementedFunc),
+    /* 106 */ SyscallDesc("listen", unimplementedFunc),
+    /* 107 */ SyscallDesc("plock", unimplementedFunc),
+    /* 108 */ SyscallDesc("old_sigvec", unimplementedFunc),
+    /* 109 */ SyscallDesc("old_sigblock", unimplementedFunc),
+    /* 110 */ SyscallDesc("old_sigsetmask", unimplementedFunc),
+    /* 111 */ SyscallDesc("sigsuspend", unimplementedFunc),
+    /* 112 */ SyscallDesc("sigstack", ignoreFunc),
+    /* 113 */ SyscallDesc("old_recvmsg", unimplementedFunc),
+    /* 114 */ SyscallDesc("old_sendmsg", unimplementedFunc),
+    /* 115 */ SyscallDesc("obsolete vtrace", unimplementedFunc),
+    /* 116 */ SyscallDesc("gettimeofday", gettimeofdayFunc<Tru64>),
+    /* 117 */ SyscallDesc("getrusage", getrusageFunc<Tru64>),
+    /* 118 */ SyscallDesc("getsockopt", unimplementedFunc),
+    /* 119 */ SyscallDesc("numa_syscalls", unimplementedFunc),
+    /* 120 */ SyscallDesc("readv", unimplementedFunc),
+    /* 121 */ SyscallDesc("writev", unimplementedFunc),
+    /* 122 */ SyscallDesc("settimeofday", unimplementedFunc),
+    /* 123 */ SyscallDesc("fchown", unimplementedFunc),
+    /* 124 */ SyscallDesc("fchmod", unimplementedFunc),
+    /* 125 */ SyscallDesc("old_recvfrom", unimplementedFunc),
+    /* 126 */ SyscallDesc("setreuid", unimplementedFunc),
+    /* 127 */ SyscallDesc("setregid", unimplementedFunc),
+    /* 128 */ SyscallDesc("rename", unimplementedFunc),
+    /* 129 */ SyscallDesc("truncate", unimplementedFunc),
+    /* 130 */ SyscallDesc("ftruncate", unimplementedFunc),
+    /* 131 */ SyscallDesc("flock", unimplementedFunc),
+    /* 132 */ SyscallDesc("setgid", unimplementedFunc),
+    /* 133 */ SyscallDesc("sendto", unimplementedFunc),
+    /* 134 */ SyscallDesc("shutdown", unimplementedFunc),
+    /* 135 */ SyscallDesc("socketpair", unimplementedFunc),
+    /* 136 */ SyscallDesc("mkdir", unimplementedFunc),
+    /* 137 */ SyscallDesc("rmdir", unimplementedFunc),
+    /* 138 */ SyscallDesc("utimes", unimplementedFunc),
+    /* 139 */ SyscallDesc("obsolete 4.2 sigreturn", unimplementedFunc),
+    /* 140 */ SyscallDesc("adjtime", unimplementedFunc),
+    /* 141 */ SyscallDesc("old_getpeername", unimplementedFunc),
+    /* 142 */ SyscallDesc("gethostid", unimplementedFunc),
+    /* 143 */ SyscallDesc("sethostid", unimplementedFunc),
+    /* 144 */ SyscallDesc("getrlimit", getrlimitFunc<Tru64>),
+    /* 145 */ SyscallDesc("setrlimit", unimplementedFunc),
+    /* 146 */ SyscallDesc("old_killpg", unimplementedFunc),
+    /* 147 */ SyscallDesc("setsid", unimplementedFunc),
+    /* 148 */ SyscallDesc("quotactl", unimplementedFunc),
+    /* 149 */ SyscallDesc("oldquota", unimplementedFunc),
+    /* 150 */ SyscallDesc("old_getsockname", unimplementedFunc),
+    /* 151 */ SyscallDesc("pread", unimplementedFunc),
+    /* 152 */ SyscallDesc("pwrite", unimplementedFunc),
+    /* 153 */ SyscallDesc("pid_block", unimplementedFunc),
+    /* 154 */ SyscallDesc("pid_unblock", unimplementedFunc),
+    /* 155 */ SyscallDesc("signal_urti", unimplementedFunc),
+    /* 156 */ SyscallDesc("sigaction", ignoreFunc),
+    /* 157 */ SyscallDesc("sigwaitprim", unimplementedFunc),
+    /* 158 */ SyscallDesc("nfssvc", unimplementedFunc),
+    /* 159 */ SyscallDesc("getdirentries", getdirentriesFunc),
+    /* 160 */ SyscallDesc("pre_F64_statfs", unimplementedFunc),
+    /* 161 */ SyscallDesc("pre_F64_fstatfs", unimplementedFunc),
+    /* 162 */ SyscallDesc("unknown #162", unimplementedFunc),
+    /* 163 */ SyscallDesc("async_daemon", unimplementedFunc),
+    /* 164 */ SyscallDesc("getfh", unimplementedFunc),
+    /* 165 */ SyscallDesc("getdomainname", unimplementedFunc),
+    /* 166 */ SyscallDesc("setdomainname", unimplementedFunc),
+    /* 167 */ SyscallDesc("unknown #167", unimplementedFunc),
+    /* 168 */ SyscallDesc("unknown #168", unimplementedFunc),
+    /* 169 */ SyscallDesc("exportfs", unimplementedFunc),
+    /* 170 */ SyscallDesc("unknown #170", unimplementedFunc),
+    /* 171 */ SyscallDesc("unknown #171", unimplementedFunc),
+    /* 172 */ SyscallDesc("unknown #172", unimplementedFunc),
+    /* 173 */ SyscallDesc("unknown #173", unimplementedFunc),
+    /* 174 */ SyscallDesc("unknown #174", unimplementedFunc),
+    /* 175 */ SyscallDesc("unknown #175", unimplementedFunc),
+    /* 176 */ SyscallDesc("unknown #176", unimplementedFunc),
+    /* 177 */ SyscallDesc("unknown #177", unimplementedFunc),
+    /* 178 */ SyscallDesc("unknown #178", unimplementedFunc),
+    /* 179 */ SyscallDesc("unknown #179", unimplementedFunc),
+    /* 180 */ SyscallDesc("unknown #180", unimplementedFunc),
+    /* 181 */ SyscallDesc("alt_plock", unimplementedFunc),
+    /* 182 */ SyscallDesc("unknown #182", unimplementedFunc),
+    /* 183 */ SyscallDesc("unknown #183", unimplementedFunc),
+    /* 184 */ SyscallDesc("getmnt", unimplementedFunc),
+    /* 185 */ SyscallDesc("unknown #185", unimplementedFunc),
+    /* 186 */ SyscallDesc("unknown #186", unimplementedFunc),
+    /* 187 */ SyscallDesc("alt_sigpending", unimplementedFunc),
+    /* 188 */ SyscallDesc("alt_setsid", unimplementedFunc),
+    /* 189 */ SyscallDesc("unknown #189", unimplementedFunc),
+    /* 190 */ SyscallDesc("unknown #190", unimplementedFunc),
+    /* 191 */ SyscallDesc("unknown #191", unimplementedFunc),
+    /* 192 */ SyscallDesc("unknown #192", unimplementedFunc),
+    /* 193 */ SyscallDesc("unknown #193", unimplementedFunc),
+    /* 194 */ SyscallDesc("unknown #194", unimplementedFunc),
+    /* 195 */ SyscallDesc("unknown #195", unimplementedFunc),
+    /* 196 */ SyscallDesc("unknown #196", unimplementedFunc),
+    /* 197 */ SyscallDesc("unknown #197", unimplementedFunc),
+    /* 198 */ SyscallDesc("unknown #198", unimplementedFunc),
+    /* 199 */ SyscallDesc("swapon", unimplementedFunc),
+    /* 200 */ SyscallDesc("msgctl", unimplementedFunc),
+    /* 201 */ SyscallDesc("msgget", unimplementedFunc),
+    /* 202 */ SyscallDesc("msgrcv", unimplementedFunc),
+    /* 203 */ SyscallDesc("msgsnd", unimplementedFunc),
+    /* 204 */ SyscallDesc("semctl", unimplementedFunc),
+    /* 205 */ SyscallDesc("semget", unimplementedFunc),
+    /* 206 */ SyscallDesc("semop", unimplementedFunc),
+    /* 207 */ SyscallDesc("uname", unameFunc),
+    /* 208 */ SyscallDesc("lchown", unimplementedFunc),
+    /* 209 */ SyscallDesc("shmat", unimplementedFunc),
+    /* 210 */ SyscallDesc("shmctl", unimplementedFunc),
+    /* 211 */ SyscallDesc("shmdt", unimplementedFunc),
+    /* 212 */ SyscallDesc("shmget", unimplementedFunc),
+    /* 213 */ SyscallDesc("mvalid", unimplementedFunc),
+    /* 214 */ SyscallDesc("getaddressconf", unimplementedFunc),
+    /* 215 */ SyscallDesc("msleep", unimplementedFunc),
+    /* 216 */ SyscallDesc("mwakeup", unimplementedFunc),
+    /* 217 */ SyscallDesc("msync", unimplementedFunc),
+    /* 218 */ SyscallDesc("signal", unimplementedFunc),
+    /* 219 */ SyscallDesc("utc_gettime", unimplementedFunc),
+    /* 220 */ SyscallDesc("utc_adjtime", unimplementedFunc),
+    /* 221 */ SyscallDesc("unknown #221", unimplementedFunc),
+    /* 222 */ SyscallDesc("security", unimplementedFunc),
+    /* 223 */ SyscallDesc("kloadcall", unimplementedFunc),
+    /* 224 */ SyscallDesc("stat", statFunc<Tru64>),
+    /* 225 */ SyscallDesc("lstat", lstatFunc<Tru64>),
+    /* 226 */ SyscallDesc("fstat", fstatFunc<Tru64>),
+    /* 227 */ SyscallDesc("statfs", unimplementedFunc),
+    /* 228 */ SyscallDesc("fstatfs", unimplementedFunc),
+    /* 229 */ SyscallDesc("getfsstat", unimplementedFunc),
+    /* 230 */ SyscallDesc("gettimeofday64", unimplementedFunc),
+    /* 231 */ SyscallDesc("settimeofday64", unimplementedFunc),
+    /* 232 */ SyscallDesc("unknown #232", unimplementedFunc),
+    /* 233 */ SyscallDesc("getpgid", unimplementedFunc),
+    /* 234 */ SyscallDesc("getsid", unimplementedFunc),
+    /* 235 */ SyscallDesc("sigaltstack", ignoreFunc),
+    /* 236 */ SyscallDesc("waitid", unimplementedFunc),
+    /* 237 */ SyscallDesc("priocntlset", unimplementedFunc),
+    /* 238 */ SyscallDesc("sigsendset", unimplementedFunc),
+    /* 239 */ SyscallDesc("set_speculative", unimplementedFunc),
+    /* 240 */ SyscallDesc("msfs_syscall", unimplementedFunc),
+    /* 241 */ SyscallDesc("sysinfo", unimplementedFunc),
+    /* 242 */ SyscallDesc("uadmin", unimplementedFunc),
+    /* 243 */ SyscallDesc("fuser", unimplementedFunc),
+    /* 244 */ SyscallDesc("proplist_syscall", unimplementedFunc),
+    /* 245 */ SyscallDesc("ntp_adjtime", unimplementedFunc),
+    /* 246 */ SyscallDesc("ntp_gettime", unimplementedFunc),
+    /* 247 */ SyscallDesc("pathconf", unimplementedFunc),
+    /* 248 */ SyscallDesc("fpathconf", unimplementedFunc),
+    /* 249 */ SyscallDesc("sync2", unimplementedFunc),
+    /* 250 */ SyscallDesc("uswitch", unimplementedFunc),
+    /* 251 */ SyscallDesc("usleep_thread", unimplementedFunc),
+    /* 252 */ SyscallDesc("audcntl", unimplementedFunc),
+    /* 253 */ SyscallDesc("audgen", unimplementedFunc),
+    /* 254 */ SyscallDesc("sysfs", unimplementedFunc),
+    /* 255 */ SyscallDesc("subsys_info", unimplementedFunc),
+    /* 256 */ SyscallDesc("getsysinfo", getsysinfoFunc),
+    /* 257 */ SyscallDesc("setsysinfo", unimplementedFunc),
+    /* 258 */ SyscallDesc("afs_syscall", unimplementedFunc),
+    /* 259 */ SyscallDesc("swapctl", unimplementedFunc),
+    /* 260 */ SyscallDesc("memcntl", unimplementedFunc),
+    /* 261 */ SyscallDesc("fdatasync", unimplementedFunc),
+    /* 262 */ SyscallDesc("oflock", unimplementedFunc),
+    /* 263 */ SyscallDesc("F64_readv", unimplementedFunc),
+    /* 264 */ SyscallDesc("F64_writev", unimplementedFunc),
+    /* 265 */ SyscallDesc("cdslxlate", unimplementedFunc),
+    /* 266 */ SyscallDesc("sendfile", unimplementedFunc),
+};
+
+const int Tru64::Num_Syscall_Descs =
+        sizeof(Tru64::syscallDescs) / sizeof(SyscallDesc);
+
+const int Tru64::Max_Syscall_Desc = Tru64::Num_Syscall_Descs - 1;
+
+SyscallDesc Tru64::machSyscallDescs[] = {
     /* 0 */  SyscallDesc("kern_invalid", unimplementedFunc),
     /* 1 */  SyscallDesc("m5_mutex_lock", m5_mutex_lockFunc),
     /* 2 */  SyscallDesc("m5_mutex_trylock", m5_mutex_trylockFunc),
@@ -1780,66 +1727,30 @@ SyscallDesc machSyscallDescs[] = {
     /* 82 */ SyscallDesc("mach_sctimes_port_alloc_dealloc", unimplementedFunc)
 };
 
-const int Num_Mach_Syscall_Descs =
-                sizeof(machSyscallDescs) / sizeof(SyscallDesc);
-
-const int Max_Mach_Syscall_Desc = Num_Mach_Syscall_Descs - 1;
-
-// Since negated values are used to identify Mach syscalls, the
-// minimum (signed) valid syscall number is the negated max Mach
-// syscall number.
-const int Min_Syscall_Desc = -Max_Mach_Syscall_Desc;
+const int Tru64::Num_Mach_Syscall_Descs =
+                sizeof(Tru64::machSyscallDescs) / sizeof(SyscallDesc);
+const int Tru64::Max_Mach_Syscall_Desc = Tru64::Num_Mach_Syscall_Descs - 1;
+const int Tru64::Min_Syscall_Desc = -Tru64::Max_Mach_Syscall_Desc;
 
 
-//
-// helper function for invoking syscalls
-//
-static
 void
-doSyscall(int callnum, Process *process, ExecContext *xc)
+AlphaTru64Process::syscall(ExecContext *xc)
 {
-    if (callnum < Min_Syscall_Desc || callnum > Max_Syscall_Desc) {
-        cerr << "Syscall " << callnum << " out of range" << endl;
-        abort();
-    }
-
-    SyscallDesc *desc =
-        (callnum < 0) ? &machSyscallDescs[-callnum] : &syscallDescs[callnum];
-
-    DPRINTFR(SyscallVerbose, "%s: syscall %s called\n",
-             xc->cpu->name(), desc->name);
-
-    int retval = desc->doFunc(callnum, process, xc);
-
-    DPRINTFR(SyscallVerbose, "%s: syscall %s returns %d\n",
-             xc->cpu->name(), desc->name, retval);
-
-    if (!((desc->flags & SyscallDesc::SuppressReturnValue) && retval == 0))
-        set_return_value(xc, retval);
-}
-
-//
-// Indirect syscall invocation (call #0)
-//
-int
-indirectSyscallFunc(SyscallDesc *desc, int callnum, Process *process,
-                    ExecContext *xc)
-{
-    int new_callnum = getArg(xc, 0);
-
-    for (int i = 0; i < 5; ++i)
-        setArg(xc, i, getArg(xc, i+1));
+    num_syscalls++;
 
-    doSyscall(new_callnum, process, xc);
+    int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
 
-    return 0;
+    Tru64::doSyscall(callnum, this, xc);
 }
 
 
-void
-fake_syscall(Process *process, ExecContext *xc)
+AlphaTru64Process::AlphaTru64Process(const std::string &name,
+                                     ObjectFile *objFile,
+                                     int stdin_fd,
+                                     int stdout_fd,
+                                     int stderr_fd,
+                                     std::vector<std::string> &argv,
+                                     std::vector<std::string> &envp)
+    : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp)
 {
-    int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
-
-    doSyscall(callnum, process, xc);
 }
diff --git a/arch/alpha/alpha_tru64_process.hh b/arch/alpha/alpha_tru64_process.hh
new file mode 100644
index 000000000..2b03d66b2
--- /dev/null
+++ b/arch/alpha/alpha_tru64_process.hh
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2003 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.
+ */
+
+#ifndef __ALPHA_TRU64_PROCESS_HH__
+#define __ALPHA_TRU64_PROCESS_HH__
+
+#include "sim/process.hh"
+
+class AlphaTru64Process : public LiveProcess
+{
+  public:
+    AlphaTru64Process(const std::string &name,
+                      ObjectFile *objFile,
+                      int stdin_fd, int stdout_fd, int stderr_fd,
+                      std::vector<std::string> &argv,
+                      std::vector<std::string> &envp);
+
+    virtual void syscall(ExecContext *xc);
+};
+
+
+#endif // __ALPHA_TRU64_PROCESS_HH__
diff --git a/base/loader/aout_object.cc b/base/loader/aout_object.cc
index 0270e02a3..42a376ed1 100644
--- a/base/loader/aout_object.cc
+++ b/base/loader/aout_object.cc
@@ -43,7 +43,9 @@ ObjectFile *
 AoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 {
     if (!N_BADMAG(*(aout_exechdr *)data)) {
-        return new AoutObject(fname, fd, len, data);
+        // right now this is only used for Alpha PAL code
+        return new AoutObject(fname, fd, len, data,
+                              ObjectFile::Alpha, ObjectFile::UnknownOpSys);
     }
     else {
         return NULL;
@@ -52,8 +54,9 @@ AoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 
 
 AoutObject::AoutObject(const string &_filename, int _fd,
-                         size_t _len, uint8_t *_data)
-    : ObjectFile(_filename, _fd, _len, _data)
+                       size_t _len, uint8_t *_data,
+                       Arch _arch, OpSys _opSys)
+    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
 {
     execHdr = (aout_exechdr *)fileData;
 
diff --git a/base/loader/aout_object.hh b/base/loader/aout_object.hh
index 77c59aef6..9fb8cb3e8 100644
--- a/base/loader/aout_object.hh
+++ b/base/loader/aout_object.hh
@@ -40,7 +40,8 @@ class AoutObject : public ObjectFile
     aout_exechdr *execHdr;
 
     AoutObject(const std::string &_filename, int _fd,
-                size_t _len, uint8_t *_data);
+               size_t _len, uint8_t *_data,
+               Arch _arch, OpSys _opSys);
 
   public:
     virtual ~AoutObject() {}
diff --git a/base/loader/ecoff_object.cc b/base/loader/ecoff_object.cc
index 5e726a1c5..bab75944d 100644
--- a/base/loader/ecoff_object.cc
+++ b/base/loader/ecoff_object.cc
@@ -46,7 +46,8 @@ EcoffObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 {
     if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) {
         // it's Alpha ECOFF
-        return new EcoffObject(fname, fd, len, data);
+        return new EcoffObject(fname, fd, len, data,
+                               ObjectFile::Alpha, ObjectFile::Tru64);
     }
     else {
         return NULL;
@@ -55,8 +56,9 @@ EcoffObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 
 
 EcoffObject::EcoffObject(const string &_filename, int _fd,
-                         size_t _len, uint8_t *_data)
-    : ObjectFile(_filename, _fd, _len, _data)
+                         size_t _len, uint8_t *_data,
+                         Arch _arch, OpSys _opSys)
+    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
 {
     execHdr = (ecoff_exechdr *)fileData;
     fileHdr = &(execHdr->f);
diff --git a/base/loader/ecoff_object.hh b/base/loader/ecoff_object.hh
index 94b11c720..05d026d00 100644
--- a/base/loader/ecoff_object.hh
+++ b/base/loader/ecoff_object.hh
@@ -44,7 +44,8 @@ class EcoffObject : public ObjectFile
     ecoff_aouthdr *aoutHdr;
 
     EcoffObject(const std::string &_filename, int _fd,
-                size_t _len, uint8_t *_data);
+                size_t _len, uint8_t *_data,
+                Arch _arch, OpSys _opSys);
 
   public:
     virtual ~EcoffObject() {}
diff --git a/base/loader/elf_object.cc b/base/loader/elf_object.cc
index 605895c9c..30dec4c91 100644
--- a/base/loader/elf_object.cc
+++ b/base/loader/elf_object.cc
@@ -43,8 +43,9 @@ ObjectFile *
 ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 {
     if (memcmp(((Elf64_Ehdr *)data)->e_ident, ELFMAG, SELFMAG) == 0) {
-        // for now we'll assume it's a 64-bit Alpha binary
-        return new ElfObject(fname, fd, len, data);
+        // for now we'll assume it's a 64-bit Alpha Linux binary
+        return new ElfObject(fname, fd, len, data,
+                             ObjectFile::Alpha, ObjectFile::Linux);
     }
     else {
         return NULL;
@@ -53,8 +54,9 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
 
 
 ElfObject::ElfObject(const string &_filename, int _fd,
-                         size_t _len, uint8_t *_data)
-    : ObjectFile(_filename, _fd, _len, _data)
+                     size_t _len, uint8_t *_data,
+                     Arch _arch, OpSys _opSys)
+    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
 {
     ehdr = (Elf64_Ehdr *)fileData;
 
diff --git a/base/loader/elf_object.hh b/base/loader/elf_object.hh
index 28f6bb243..10d97d089 100644
--- a/base/loader/elf_object.hh
+++ b/base/loader/elf_object.hh
@@ -45,7 +45,8 @@ class ElfObject : public ObjectFile
     int dataPhdrIdx;
 
     ElfObject(const std::string &_filename, int _fd,
-              size_t _len, uint8_t *_data);
+              size_t _len, uint8_t *_data,
+              Arch _arch, OpSys _opSys);
 
   public:
     virtual ~ElfObject() {}
diff --git a/base/loader/object_file.cc b/base/loader/object_file.cc
index 5a13d180c..25e9b2d19 100644
--- a/base/loader/object_file.cc
+++ b/base/loader/object_file.cc
@@ -46,8 +46,10 @@
 using namespace std;
 
 ObjectFile::ObjectFile(const string &_filename, int _fd,
-                       size_t _len, uint8_t *_data)
-    : filename(_filename), descriptor(_fd), fileData(_data), len(_len)
+                       size_t _len, uint8_t *_data,
+                       Arch _arch, OpSys _opSys)
+    : filename(_filename), descriptor(_fd), fileData(_data), len(_len),
+      arch(_arch), opSys(_opSys)
 {
 }
 
diff --git a/base/loader/object_file.hh b/base/loader/object_file.hh
index 5950ea326..a29bdc153 100644
--- a/base/loader/object_file.hh
+++ b/base/loader/object_file.hh
@@ -36,14 +36,31 @@ class SymbolTable;
 
 class ObjectFile
 {
+  public:
+
+    enum Arch {
+        UnknownArch,
+        Alpha
+    };
+
+    enum OpSys {
+        UnknownOpSys,
+        Tru64,
+        Linux
+    };
+
   protected:
     const std::string filename;
     int descriptor;
     uint8_t *fileData;
     size_t len;
 
+    Arch  arch;
+    OpSys opSys;
+
     ObjectFile(const std::string &_filename, int _fd,
-               size_t _len, uint8_t *_data);
+               size_t _len, uint8_t *_data,
+               Arch _arch, OpSys _opSys);
 
   public:
     virtual ~ObjectFile();
@@ -55,6 +72,9 @@ class ObjectFile
     virtual bool loadGlobalSymbols(SymbolTable *symtab) = 0;
     virtual bool loadLocalSymbols(SymbolTable *symtab) = 0;
 
+    Arch  getArch()  const { return arch; }
+    OpSys getOpSys() const { return opSys; }
+
   protected:
 
     struct Section {
diff --git a/cpu/exec_context.cc b/cpu/exec_context.cc
index 92144bd93..7332b86a6 100644
--- a/cpu/exec_context.cc
+++ b/cpu/exec_context.cc
@@ -34,7 +34,7 @@
 #ifdef FULL_SYSTEM
 #include "sim/system.hh"
 #else
-#include "sim/prog.hh"
+#include "sim/process.hh"
 #endif
 
 using namespace std;
diff --git a/cpu/exec_context.hh b/cpu/exec_context.hh
index 274a3778b..7999e3735 100644
--- a/cpu/exec_context.hh
+++ b/cpu/exec_context.hh
@@ -52,7 +52,7 @@ class MemoryController;
 
 #else // !FULL_SYSTEM
 
-#include "sim/prog.hh"
+#include "sim/process.hh"
 
 #endif // FULL_SYSTEM
 
@@ -376,6 +376,34 @@ class ExecContext
 #endif
 
 #ifndef FULL_SYSTEM
+    IntReg getSyscallArg(int i)
+    {
+        return regs.intRegFile[ArgumentReg0 + i];
+    }
+
+    // used to shift args for indirect syscall
+    void setSyscallArg(int i, IntReg val)
+    {
+        regs.intRegFile[ArgumentReg0 + i] = val;
+    }
+
+    void setSyscallReturn(int64_t return_value)
+    {
+        // check for error condition.  Alpha syscall convention is to
+        // indicate success/failure in reg a3 (r19) and put the
+        // return value itself in the standard return value reg (v0).
+        const int RegA3 = 19;	// only place this is used
+        if (return_value >= 0) {
+            // no error
+            regs.intRegFile[RegA3] = 0;
+            regs.intRegFile[ReturnValueReg] = return_value;
+        } else {
+            // got an error, return details
+            regs.intRegFile[RegA3] = (IntReg) -1;
+            regs.intRegFile[ReturnValueReg] = -return_value;
+        }
+    }
+
     void syscall()
     {
         process->syscall(this);
diff --git a/cpu/simple_cpu/simple_cpu.cc b/cpu/simple_cpu/simple_cpu.cc
index a63f86098..476f28ea0 100644
--- a/cpu/simple_cpu/simple_cpu.cc
+++ b/cpu/simple_cpu/simple_cpu.cc
@@ -70,7 +70,6 @@
 #else // !FULL_SYSTEM
 #include "eio/eio.hh"
 #include "mem/functional_mem/functional_memory.hh"
-#include "sim/prog.hh"
 #endif // FULL_SYSTEM
 
 using namespace std;
diff --git a/sim/prog.cc b/sim/process.cc
index fca4b4505..bb4333896 100644
--- a/sim/prog.cc
+++ b/sim/process.cc
@@ -42,9 +42,14 @@
 #include "mem/functional_mem/main_memory.hh"
 #include "sim/builder.hh"
 #include "sim/fake_syscall.hh"
-#include "sim/prog.hh"
+#include "sim/process.hh"
 #include "sim/sim_stats.hh"
 
+#ifdef TARGET_ALPHA
+#include "arch/alpha/alpha_tru64_process.hh"
+#include "arch/alpha/alpha_linux_process.hh"
+#endif
+
 using namespace std;
 
 //
@@ -53,13 +58,9 @@ using namespace std;
 // mode when we do have an OS
 //
 #ifdef FULL_SYSTEM
-#error "prog.cc not compatible with FULL_SYSTEM"
+#error "process.cc not compatible with FULL_SYSTEM"
 #endif
 
-// max allowable number of processes: should be no real cost to
-// cranking this up if necessary
-const int MAX_PROCESSES = 8;
-
 // current number of allocated processes
 int num_processes = 0;
 
@@ -242,16 +243,12 @@ copyStringArray(vector<string> &strings, Addr array_ptr, Addr data_ptr,
     memory->access(Write, array_ptr, &data_ptr, sizeof(Addr));
 }
 
-LiveProcess::LiveProcess(const string &name,
+LiveProcess::LiveProcess(const string &name, ObjectFile *objFile,
                          int stdin_fd, int stdout_fd, int stderr_fd,
                          vector<string> &argv, vector<string> &envp)
     : Process(name, stdin_fd, stdout_fd, stderr_fd)
 {
     prog_fname = argv[0];
-    ObjectFile *objFile = createObjectFile(prog_fname);
-    if (objFile == NULL) {
-        fatal("Can't load object file %s", prog_fname);
-    }
 
     prog_entry = objFile->entryPoint();
     text_base = objFile->textBase();
@@ -267,6 +264,10 @@ LiveProcess::LiveProcess(const string &name,
     // code should get moved to some architecture-specific spot.
     stack_base = text_base - (409600+4096);
 
+    // Set up region for mmaps.  Tru64 seems to start just above 0 and
+    // grow up from there.
+    mmap_base = 0x10000;
+
     // Set pointer for next thread stack.  Reserve 8M for main stack.
     next_thread_stack_base = stack_base - (8 * 1024 * 1024);
 
@@ -316,12 +317,45 @@ LiveProcess::LiveProcess(const string &name,
 }
 
 
-void
-LiveProcess::syscall(ExecContext *xc)
+LiveProcess *
+LiveProcess::create(const string &name,
+                    int stdin_fd, int stdout_fd, int stderr_fd,
+                    vector<string> &argv, vector<string> &envp)
 {
-    num_syscalls++;
+    LiveProcess *process = NULL;
+    ObjectFile *objFile = createObjectFile(argv[0]);
+    if (objFile == NULL) {
+        fatal("Can't load object file %s", argv[0]);
+    }
+
+    // check object type & set up syscall emulation pointer
+    if (objFile->getArch() == ObjectFile::Alpha) {
+        switch (objFile->getOpSys()) {
+          case ObjectFile::Tru64:
+            process = new AlphaTru64Process(name, objFile,
+                                            stdin_fd, stdout_fd, stderr_fd,
+                                            argv, envp);
+            break;
+
+          case ObjectFile::Linux:
+            process = new AlphaLinuxProcess(name, objFile,
+                                            stdin_fd, stdout_fd, stderr_fd,
+                                            argv, envp);
+            break;
+
+          default:
+            fatal("Unknown/unsupported operating system.");
+        }
+    } else {
+        fatal("Unknown object file architecture.");
+    }
+
+    delete objFile;
+
+    if (process == NULL)
+        fatal("Unknown error creating process object.");
 
-    fake_syscall(this, xc);
+    return process;
 }
 
 
@@ -357,10 +391,10 @@ CREATE_SIM_OBJECT(LiveProcess)
 
     //  We do this with "temp" because of the bogus compiler warning
     //  you get with g++ 2.95 -O if you just "return new LiveProcess(..."
-    LiveProcess *temp = new LiveProcess(getInstanceName(),
-                                        stdin_fd, stdout_fd, stderr_fd,
-                                        cmd,
-                                        env.isValid() ? env : null_vec);
+    LiveProcess *temp = LiveProcess::create(getInstanceName(),
+                                            stdin_fd, stdout_fd, stderr_fd,
+                                            cmd,
+                                            env.isValid() ? env : null_vec);
 
     return temp;
 }
diff --git a/sim/prog.hh b/sim/process.hh
index e93dd684c..5df5736ff 100644
--- a/sim/prog.hh
+++ b/sim/process.hh
@@ -26,8 +26,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef __PROG_HH__
-#define __PROG_HH__
+#ifndef __PROCESS_HH__
+#define __PROCESS_HH__
 
 //
 // The purpose of this code is to fake the loader & syscall mechanism
@@ -89,10 +89,12 @@ class Process : public SimObject
     unsigned stack_size;	// initial stack size
     Addr stack_min;		// lowest address accessed on the stack
 
-
     // addr to use for next stack region (for multithreaded apps)
     Addr next_thread_stack_base;
 
+    // Base of region for mmaps (when user doesn't specify an address).
+    Addr mmap_base;
+
     std::string prog_fname;	// file name
     Addr prog_entry;		// entry point (initial PC)
 
@@ -165,18 +167,26 @@ class Process : public SimObject
 //
 // "Live" process with system calls redirected to host system
 //
-class MainMemory;
+class ObjectFile;
 class LiveProcess : public Process
 {
-  public:
-    LiveProcess(const std::string &name,
+  protected:
+    LiveProcess(const std::string &name, ObjectFile *objFile,
                 int stdin_fd, int stdout_fd, int stderr_fd,
                 std::vector<std::string> &argv,
                 std::vector<std::string> &envp);
 
-    virtual void syscall(ExecContext *xc);
+  public:
+    // this function is used to create the LiveProcess object, since
+    // we can't tell which subclass of LiveProcess to use until we
+    // open and look at the object file.
+    static LiveProcess *create(const std::string &name,
+                               int stdin_fd, int stdout_fd, int stderr_fd,
+                               std::vector<std::string> &argv,
+                               std::vector<std::string> &envp);
 };
 
+
 #endif // !FULL_SYSTEM
 
-#endif // __PROG_HH__
+#endif // __PROCESS_HH__
diff --git a/sim/syscall_emul.cc b/sim/syscall_emul.cc
new file mode 100644
index 000000000..0e4e78612
--- /dev/null
+++ b/sim/syscall_emul.cc
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2003 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 <unistd.h>
+
+#include <string>
+#include <iostream>
+
+#include "sim/syscall_emul.hh"
+#include "base/trace.hh"
+#include "cpu/exec_context.hh"
+#include "cpu/base_cpu.hh"
+#include "sim/process.hh"
+
+#include "sim/sim_events.hh"
+
+using namespace std;
+
+void
+SyscallDesc::doSyscall(int callnum, Process *process, ExecContext *xc)
+{
+    DPRINTFR(SyscallVerbose, "%s: syscall %s called\n",
+             xc->cpu->name(), name);
+
+    int retval = (*funcPtr)(this, callnum, process, xc);
+
+    DPRINTFR(SyscallVerbose, "%s: syscall %s returns %d\n",
+             xc->cpu->name(), name, retval);
+
+    if (!((flags & SyscallDesc::SuppressReturnValue) && retval == 0))
+        xc->setSyscallReturn(retval);
+}
+
+
+//
+// Handler for unimplemented syscalls that we haven't thought about.
+//
+int
+unimplementedFunc(SyscallDesc *desc, int callnum, Process *process,
+                  ExecContext *xc)
+{
+    cerr << "Error: syscall " << desc->name
+         << " (#" << callnum << ") unimplemented.";
+    cerr << "  Args: " << xc->getSyscallArg(0) << ", " << xc->getSyscallArg(1)
+         << ", ..." << endl;
+
+    abort();
+}
+
+
+//
+// Handler for unimplemented syscalls that we never intend to
+// implement (signal handling, etc.) and should not affect the correct
+// behavior of the program.  Print a warning only if the appropriate
+// trace flag is enabled.  Return success to the target program.
+//
+int
+ignoreFunc(SyscallDesc *desc, int callnum, Process *process,
+           ExecContext *xc)
+{
+    DCOUT(SyscallWarnings) << "Warning: ignoring syscall " << desc->name
+                           << "(" << xc->getSyscallArg(0)
+                           << ", " << xc->getSyscallArg(1)
+                           << ", ...)" << endl;
+
+    return 0;
+}
+
+
+int
+exitFunc(SyscallDesc *desc, int callnum, Process *process,
+         ExecContext *xc)
+{
+    new SimExitEvent("syscall caused exit", xc->getSyscallArg(0) & 0xff);
+
+    return 1;
+}
+
+
+int
+getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    return VMPageSize;
+}
+
+
+int
+obreakFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    // change brk addr to first arg
+    p->brk_point = xc->getSyscallArg(0);
+    return p->brk_point;
+}
+
+
+int
+closeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    int fd = p->sim_fd(xc->getSyscallArg(0));
+    return close(fd);
+}
+
+
+int
+readFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    int fd = p->sim_fd(xc->getSyscallArg(0));
+    int nbytes = xc->getSyscallArg(2);
+    BufferArg bufArg(xc->getSyscallArg(1), nbytes);
+
+    int bytes_read = read(fd, bufArg.bufferPtr(), nbytes);
+
+    if (bytes_read != -1)
+        bufArg.copyOut(xc->mem);
+
+    return bytes_read;
+}
+
+int
+writeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    int fd = p->sim_fd(xc->getSyscallArg(0));
+    int nbytes = xc->getSyscallArg(2);
+    BufferArg bufArg(xc->getSyscallArg(1), nbytes);
+
+    bufArg.copyIn(xc->mem);
+
+    int bytes_written = write(fd, bufArg.bufferPtr(), nbytes);
+
+    fsync(fd);
+
+    return bytes_written;
+}
+
+
+int
+lseekFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    int fd = p->sim_fd(xc->getSyscallArg(0));
+    uint64_t offs = xc->getSyscallArg(1);
+    int whence = xc->getSyscallArg(2);
+
+    off_t result = lseek(fd, offs, whence);
+
+    return (result == (off_t)-1) ? -errno : result;
+}
+
+
+int
+munmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    // given that we don't really implement mmap, munmap is really easy
+    return 0;
+}
+
+
+const char *hostname = "m5.eecs.umich.edu";
+
+int
+gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    int name_len = xc->getSyscallArg(1);
+    BufferArg name(xc->getSyscallArg(0), name_len);
+
+    strncpy((char *)name.bufferPtr(), hostname, name_len);
+
+    name.copyOut(xc->mem);
+
+    return 0;
+}
+
+
diff --git a/sim/syscall_emul.hh b/sim/syscall_emul.hh
new file mode 100644
index 000000000..a02b4a608
--- /dev/null
+++ b/sim/syscall_emul.hh
@@ -0,0 +1,465 @@
+/*
+ * Copyright (c) 2003 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.
+ */
+
+#ifndef __SYSCALL_EMUL_HH__
+#define __SYSCALL_EMUL_HH__
+
+///
+/// @file syscall_emul.hh
+///
+/// This file defines objects used to emulate syscalls from the target
+/// application on the host machine.
+
+#include <string>
+
+#include "base/intmath.hh"	// for RoundUp
+#include "targetarch/isa_traits.hh"	// for Addr
+#include "mem/functional_mem/functional_memory.hh"
+
+class Process;
+class ExecContext;
+
+///
+/// System call descriptor.
+///
+class SyscallDesc {
+
+  public:
+
+    typedef int (*FuncPtr)(SyscallDesc *, int num,
+                           Process *, ExecContext *);
+
+    const char *name;	//!< Syscall name (e.g., "open").
+    FuncPtr funcPtr;	//!< Pointer to emulation function.
+    int flags;		//!< Flags (see Flags enum).
+
+
+    /// Flag values for controlling syscall behavior.
+    enum Flags {
+        /// Don't set return regs according to funcPtr return value.
+        /// Used for syscalls with non-standard return conventions
+        /// that explicitly set the ExecContext regs (e.g.,
+        /// sigreturn).
+        SuppressReturnValue = 1
+    };
+
+    /// Constructor.
+    SyscallDesc(const char *_name, FuncPtr _funcPtr, int _flags = 0)
+        : name(_name), funcPtr(_funcPtr), flags(_flags)
+    {
+    }
+
+    /// Emulate the syscall.  Public interface for calling through funcPtr.
+    void doSyscall(int callnum, Process *proc, ExecContext *xc);
+};
+
+
+class BaseBufferArg {
+
+  public:
+
+    BaseBufferArg(Addr _addr, int _size) : addr(_addr), size(_size)
+    {
+        bufPtr = new uint8_t[size];
+        // clear out buffer: in case we only partially populate this,
+        // and then do a copyOut(), we want to make sure we don't
+        // introduce any random junk into the simulated address space
+        memset(bufPtr, 0, size);
+    }
+
+    virtual ~BaseBufferArg() { delete [] bufPtr; }
+
+    //
+    // copy data into simulator space (read from target memory)
+    //
+    virtual bool copyIn(FunctionalMemory *mem)
+    {
+        mem->access(Read, addr, bufPtr, size);
+        return true;	// no EFAULT detection for now
+    }
+
+    //
+    // copy data out of simulator space (write to target memory)
+    //
+    virtual bool copyOut(FunctionalMemory *mem)
+    {
+        mem->access(Write, addr, bufPtr, size);
+        return true;	// no EFAULT detection for now
+    }
+
+  protected:
+    Addr addr;
+    int size;
+    uint8_t *bufPtr;
+};
+
+
+class BufferArg : public BaseBufferArg
+{
+  public:
+    BufferArg(Addr _addr, int _size) : BaseBufferArg(_addr, _size) { }
+    void *bufferPtr()	{ return bufPtr; }
+};
+
+template <class T>
+class TypedBufferArg : public BaseBufferArg
+{
+  public:
+    // user can optionally specify a specific number of bytes to
+    // allocate to deal with those structs that have variable-size
+    // arrays at the end
+    TypedBufferArg(Addr _addr, int _size = sizeof(T))
+        : BaseBufferArg(_addr, _size)
+    { }
+
+    // type case
+    operator T*() { return (T *)bufPtr; }
+
+    // dereference operators
+    T& operator*()	 { return *((T *)bufPtr); }
+    T* operator->()	 { return (T *)bufPtr; }
+    T& operator[](int i) { return ((T *)bufPtr)[i]; }
+};
+
+//////////////////////////////////////////////////////////////////////
+//
+// The following emulation functions are generic enough that they
+// don't need to be recompiled for different emulated OS's.  They are
+// defined in sim/syscall_emul.cc.
+//
+//////////////////////////////////////////////////////////////////////
+
+
+int unimplementedFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int ignoreFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+int exitFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int obreakFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int closeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int readFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int writeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int lseekFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int munmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+int gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+//////////////////////////////////////////////////////////////////////
+//
+// The following emulation functions are generic, but need to be
+// templated to account for differences in types, constants, etc.
+//
+//////////////////////////////////////////////////////////////////////
+
+template <class OS>
+int
+ioctlFunc(SyscallDesc *desc, int callnum, Process *process,
+          ExecContext *xc)
+{
+    int fd = xc->getSyscallArg(0);
+    unsigned req = xc->getSyscallArg(1);
+
+    // DPRINTFR(SyscallVerbose, "ioctl(%d, 0x%x, ...)\n", fd, req);
+
+    if (fd < 0 || process->sim_fd(fd) < 0) {
+        // doesn't map to any simulator fd: not a valid target fd
+        return -EBADF;
+    }
+
+    switch (req) {
+      case OS::TIOCISATTY:
+      case OS::TIOCGETP:
+      case OS::TIOCSETP:
+      case OS::TIOCSETN:
+      case OS::TIOCSETC:
+      case OS::TIOCGETC:
+        return -ENOTTY;
+
+      default:
+        fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...)\n", fd, req);
+    }
+}
+
+struct OpenFlagTransTable {
+    int tgtFlag;
+    int hostFlag;
+};
+
+
+template <class OS>
+int
+openFunc(SyscallDesc *desc, int callnum, Process *process,
+         ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    if (path == "/dev/sysdev0") {
+        // This is a memory-mapped high-resolution timer device on Alpha.
+        // We don't support it, so just punt.
+        DCOUT(SyscallWarnings) << "Ignoring open(" << path << ", ...)" << endl;
+        return -ENOENT;
+    }
+
+    int tgtFlags = xc->getSyscallArg(1);
+    int mode = xc->getSyscallArg(2);
+    int hostFlags = 0;
+
+    // translate open flags
+    for (int i = 0; i < OS::NUM_OPEN_FLAGS; i++) {
+        if (tgtFlags & OS::openFlagTable[i].tgtFlag) {
+            tgtFlags &= ~OS::openFlagTable[i].tgtFlag;
+            hostFlags |= OS::openFlagTable[i].hostFlag;
+        }
+    }
+
+    // any target flags left?
+    if (tgtFlags != 0)
+        cerr << "Syscall: open: cannot decode flags: " <<  tgtFlags << endl;
+
+#ifdef __CYGWIN32__
+    hostFlags |= O_BINARY;
+#endif
+
+    // open the file
+    int fd = open(path.c_str(), hostFlags, mode);
+
+    return (fd == -1) ? -errno : process->open_fd(fd);
+}
+
+
+template <class OS>
+int
+statFunc(SyscallDesc *desc, int callnum, Process *process,
+         ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    struct stat hostBuf;
+    int result = stat(path.c_str(), &hostBuf);
+
+    if (result < 0)
+        return -errno;
+
+    OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+
+    return 0;
+}
+
+
+template <class OS>
+int
+lstatFunc(SyscallDesc *desc, int callnum, Process *process,
+          ExecContext *xc)
+{
+    std::string path;
+
+    if (xc->mem->readString(path, xc->getSyscallArg(0)) != No_Fault)
+        return -EFAULT;
+
+    struct stat hostBuf;
+    int result = lstat(path.c_str(), &hostBuf);
+
+    if (result < 0)
+        return -errno;
+
+    OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+
+    return 0;
+}
+
+template <class OS>
+int
+fstatFunc(SyscallDesc *desc, int callnum, Process *process,
+          ExecContext *xc)
+{
+    int fd = process->sim_fd(xc->getSyscallArg(0));
+
+    // DPRINTFR(SyscallVerbose, "fstat(%d, ...)\n", fd);
+
+    if (fd < 0)
+        return -EBADF;
+
+    struct stat hostBuf;
+    int result = fstat(fd, &hostBuf);
+
+    if (result < 0)
+        return -errno;
+
+    OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+
+    return 0;
+}
+
+
+//
+// We don't really handle mmap().  If the target is mmaping an
+// anonymous region or /dev/zero, we can get away with doing basically
+// nothing (since memory is initialized to zero and the simulator
+// doesn't really check addresses anyway).  Always print a warning,
+// since this could be seriously broken if we're not mapping
+// /dev/zero.
+//
+// Someday we should explicitly check for /dev/zero in open, flag the
+// file descriptor, and fail (or implement!) a non-anonymous mmap to
+// anything else.
+//
+template <class OS>
+int
+mmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
+{
+    Addr start = xc->getSyscallArg(0);
+    uint64_t length = xc->getSyscallArg(1);
+    // int prot = xc->getSyscallArg(2);
+    int flags = xc->getSyscallArg(3);
+    int fd = p->sim_fd(xc->getSyscallArg(4));
+    // int offset = xc->getSyscallArg(5);
+
+    if (start == 0) {
+        // user didn't give an address... pick one from our "mmap region"
+        start = p->mmap_base;
+        p->mmap_base += RoundUp<Addr>(length, VMPageSize);
+    }
+
+    if (!(flags & OS::TGT_MAP_ANONYMOUS)) {
+        DPRINTF(SyscallWarnings, "Warning: allowing mmap of file @ fd %d.  "
+                "This will break if not /dev/zero.", fd);
+    }
+
+    return start;
+}
+
+
+template <class OS>
+int
+getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
+              ExecContext *xc)
+{
+    unsigned resource = xc->getSyscallArg(0);
+    TypedBufferArg<typename OS::rlimit> rlp(xc->getSyscallArg(1));
+
+    switch (resource) {
+      case OS::RLIMIT_STACK:
+        // max stack size in bytes: make up a number (2MB for now)
+        rlp->rlim_cur = rlp->rlim_max = 8 * 1024 * 1024;
+        break;
+
+      default:
+        cerr << "getrlimitFunc: unimplemented resource " << resource << endl;
+        abort();
+        break;
+    }
+
+    rlp.copyOut(xc->mem);
+    return 0;
+}
+
+// 1M usecs in 1 sec, for readability
+const int one_million = 1000000;
+
+// seconds since the epoch (1/1/1970)... about a billion, by my reckoning
+const unsigned seconds_since_epoch = 1000000000;
+
+//
+// helper function: populate struct timeval with approximation of
+// current elapsed time
+//
+template <class T1, class T2>
+void
+getElapsedTime(T1 &sec, T2 &usec)
+{
+    int cycles_per_usec = ticksPerSecond / one_million;
+
+    int elapsed_usecs = curTick / cycles_per_usec;
+    sec = elapsed_usecs / one_million;
+    usec = elapsed_usecs % one_million;
+}
+
+
+template <class OS>
+int
+gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
+                 ExecContext *xc)
+{
+    TypedBufferArg<typename OS::timeval> tp(xc->getSyscallArg(0));
+
+    getElapsedTime(tp->tv_sec, tp->tv_usec);
+    tp->tv_sec += seconds_since_epoch;
+
+    tp.copyOut(xc->mem);
+
+    return 0;
+}
+
+
+template <class OS>
+int
+getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
+              ExecContext *xc)
+{
+    int who = xc->getSyscallArg(0);	// THREAD, SELF, or CHILDREN
+    TypedBufferArg<typename OS::rusage> rup(xc->getSyscallArg(1));
+
+    if (who != OS::RUSAGE_SELF) {
+        // don't really handle THREAD or CHILDREN, but just warn and
+        // plow ahead
+        DCOUT(SyscallWarnings)
+            << "Warning: getrusage() only supports RUSAGE_SELF."
+            << "  Parameter " << who << " ignored." << endl;
+    }
+
+    getElapsedTime(rup->ru_utime.tv_sec, rup->ru_utime.tv_usec);
+    rup->ru_stime.tv_sec = 0;
+    rup->ru_stime.tv_usec = 0;
+    rup->ru_maxrss = 0;
+    rup->ru_ixrss = 0;
+    rup->ru_idrss = 0;
+    rup->ru_isrss = 0;
+    rup->ru_minflt = 0;
+    rup->ru_majflt = 0;
+    rup->ru_nswap = 0;
+    rup->ru_inblock = 0;
+    rup->ru_oublock = 0;
+    rup->ru_msgsnd = 0;
+    rup->ru_msgrcv = 0;
+    rup->ru_nsignals = 0;
+    rup->ru_nvcsw = 0;
+    rup->ru_nivcsw = 0;
+
+    rup.copyOut(xc->mem);
+
+    return 0;
+}
+
+
+
+#endif // __SYSCALL_EMUL_HH__