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-rw-r--r--arch/alpha/alpha_linux_process.cc839
-rw-r--r--arch/alpha/alpha_linux_process.hh51
-rw-r--r--arch/alpha/alpha_tru64_process.cc1736
-rw-r--r--arch/alpha/alpha_tru64_process.hh50
-rw-r--r--arch/alpha/fake_syscall.cc1845
-rw-r--r--base/loader/aout_object.cc9
-rw-r--r--base/loader/aout_object.hh3
-rw-r--r--base/loader/ecoff_object.cc8
-rw-r--r--base/loader/ecoff_object.hh3
-rw-r--r--base/loader/elf_object.cc10
-rw-r--r--base/loader/elf_object.hh3
-rw-r--r--base/loader/object_file.cc6
-rw-r--r--base/loader/object_file.hh22
-rw-r--r--base/remote_gdb.cc6
-rw-r--r--cpu/exec_context.cc2
-rw-r--r--cpu/exec_context.hh30
-rw-r--r--cpu/simple_cpu/simple_cpu.cc60
-rw-r--r--cpu/simple_cpu/simple_cpu.hh59
-rw-r--r--sim/process.cc (renamed from sim/prog.cc)72
-rw-r--r--sim/process.hh (renamed from sim/prog.hh)26
-rw-r--r--sim/syscall_emul.cc188
-rw-r--r--sim/syscall_emul.hh499
22 files changed, 3577 insertions, 1950 deletions
diff --git a/arch/alpha/alpha_linux_process.cc b/arch/alpha/alpha_linux_process.cc
new file mode 100644
index 000000000..d8a05849d
--- /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;
+
+///
+/// This class encapsulates the types, structures, constants,
+/// functions, and syscall-number mappings specific to the Alpha Linux
+/// syscall interface.
+///
+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) flag values.
+ static const int TGT_O_RDONLY = 00000000; //!< O_RDONLY
+ static const int TGT_O_WRONLY = 00000001; //!< O_WRONLY
+ static const int TGT_O_RDWR = 00000002; //!< O_RDWR
+ static const int TGT_O_NONBLOCK = 00000004; //!< O_NONBLOCK
+ static const int TGT_O_APPEND = 00000010; //!< O_APPEND
+ static const int TGT_O_CREAT = 00001000; //!< O_CREAT
+ static const int TGT_O_TRUNC = 00002000; //!< O_TRUNC
+ static const int TGT_O_EXCL = 00004000; //!< O_EXCL
+ static const int TGT_O_NOCTTY = 00010000; //!< O_NOCTTY
+ static const int TGT_O_SYNC = 00040000; //!< O_SYNC
+ static const int TGT_O_DRD = 00100000; //!< O_DRD
+ static const int TGT_O_DIRECTIO = 00200000; //!< O_DIRECTIO
+ static const int TGT_O_CACHE = 00400000; //!< O_CACHE
+ static const int TGT_O_DSYNC = 02000000; //!< O_DSYNC
+ static const int TGT_O_RSYNC = 04000000; //!< O_RSYNC
+ //@}
+
+ /// This table maps the target open() flags to the corresponding
+ /// host open() flags.
+ static OpenFlagTransTable openFlagTable[];
+
+ /// Number of entries in openFlagTable[].
+ static const int NUM_OPEN_FLAGS;
+
+ /// Stat buffer. Note that we can't call it 'stat' since that
+ /// gets #defined to something else on some systems.
+ struct tgt_stat {
+ uint32_t st_dev; //!< device
+ uint32_t st_ino; //!< inode
+ uint32_t st_mode; //!< mode
+ uint32_t st_nlink; //!< link count
+ uint32_t st_uid; //!< owner's user ID
+ uint32_t st_gid; //!< owner's group ID
+ uint32_t st_rdev; //!< device number
+ int64_t st_size; //!< file size in bytes
+ uint64_t st_atimeX; //!< time of last access
+ uint64_t st_mtimeX; //!< time of last modification
+ uint64_t st_ctimeX; //!< time of last status change
+ uint32_t st_blksize; //!< optimal I/O block size
+ int32_t st_blocks; //!< number of blocks allocated
+ uint32_t st_flags; //!< flags
+ uint32_t st_gen; //!< unknown
+ };
+
+
+ /// Length of strings in struct utsname (plus 1 for null char).
+ static const int _SYS_NMLN = 65;
+
+ /// Interface struct for uname().
+ struct utsname {
+ char sysname[_SYS_NMLN]; //!< System name.
+ char nodename[_SYS_NMLN]; //!< Node name.
+ char release[_SYS_NMLN]; //!< OS release.
+ char version[_SYS_NMLN]; //!< OS version.
+ char machine[_SYS_NMLN]; //!< Machine type.
+ };
+
+
+ //@{
+ /// ioctl() command codes.
+ 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;
+ //@}
+
+ /// Resource enumeration 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
+ };
+
+ /// Limit struct for getrlimit/setrlimit.
+ 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; //!< seconds
+ int64_t tv_usec; //!< microseconds
+ };
+
+ //@{
+ /// For getrusage().
+ static const int RUSAGE_SELF = 0;
+ static const int RUSAGE_CHILDREN = -1;
+ static const int RUSAGE_BOTH = -2;
+ //@}
+
+ /// For getrusage().
+ struct rusage {
+ struct timeval ru_utime; //!< user time used
+ struct timeval ru_stime; //!< system time used
+ int64_t ru_maxrss; //!< max rss
+ 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 "
+ };
+
+ /// Helper function to convert a host stat buffer to a target stat
+ /// buffer. Also copies the target buffer out to the simulated
+ /// memorty space. Used by stat(), fstat(), and lstat().
+ 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);
+ }
+
+ /// The target system's hostname.
+ static const char *hostname;
+
+ /// Target uname() handler.
+ 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;
+ }
+
+ /// Target osf_getsysyinfo() handler. Even though this call is
+ /// borrowed from Tru64, the subcases that get used appear to be
+ /// different in practice from those used by Tru64 processes.
+ 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;
+ }
+
+ /// Target osf_setsysinfo() handler.
+ 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;
+ }
+
+ /// Target fnctl() handler.
+ 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;
+ }
+ }
+
+ /// Array of syscall descriptors, indexed by call number.
+ static SyscallDesc syscallDescs[];
+
+ /// Number of syscalls in syscallDescs[].
+ static const int Num_Syscall_Descs;
+
+ /// Max supported syscall number.
+ static const int Max_Syscall_Desc;
+
+ /// Do the specified syscall. Just looks the call number up in
+ /// the table and invokes the appropriate handler.
+ 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[] = {
+#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..4b8936192
--- /dev/null
+++ b/arch/alpha/alpha_linux_process.hh
@@ -0,0 +1,51 @@
+/*
+ * 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"
+
+
+/// A process with emulated Alpha/Linux syscalls.
+class AlphaLinuxProcess : public LiveProcess
+{
+ public:
+ /// Constructor.
+ 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);
+
+ /// Syscall emulation function.
+ virtual void syscall(ExecContext *xc);
+};
+
+
+#endif // __ALPHA_LINUX_PROCESS_HH__
diff --git a/arch/alpha/alpha_tru64_process.cc b/arch/alpha/alpha_tru64_process.cc
new file mode 100644
index 000000000..aece4de5a
--- /dev/null
+++ b/arch/alpha/alpha_tru64_process.cc
@@ -0,0 +1,1736 @@
+/*
+ * 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 "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;
+
+///
+/// This class encapsulates the types, structures, constants,
+/// functions, and syscall-number mappings specific to the Alpha Tru64
+/// syscall interface.
+///
+class Tru64 {
+
+ public:
+
+ //@{
+ /// Basic Tru64 types.
+ 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) flag values.
+ 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;
+ //@}
+
+ /// This table maps the target open() flags to the corresponding
+ /// host open() flags.
+ static OpenFlagTransTable openFlagTable[];
+
+ /// Number of entries in openFlagTable[].
+ static const int NUM_OPEN_FLAGS;
+
+ /// 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.
+ struct F64_stat {
+ dev_t st_dev; //!< st_dev
+ int32_t st_retired1; //!< st_retired1
+ mode_t st_mode; //!< st_mode
+ nlink_t st_nlink; //!< st_nlink
+ uint16_t st_nlink_reserved; //!< st_nlink_reserved
+ uid_t st_uid; //!< st_uid
+ gid_t st_gid; //!< st_gid
+ dev_t st_rdev; //!< st_rdev
+ dev_t st_ldev; //!< st_ldev
+ off_t st_size; //!< st_size
+ time_t st_retired2; //!< st_retired2
+ int32_t st_uatime; //!< st_uatime
+ time_t st_retired3; //!< st_retired3
+ int32_t st_umtime; //!< st_umtime
+ time_t st_retired4; //!< st_retired4
+ int32_t st_uctime; //!< st_uctime
+ int32_t st_retired5; //!< st_retired5
+ int32_t st_retired6; //!< st_retired6
+ uint32_t st_flags; //!< st_flags
+ uint32_t st_gen; //!< st_gen
+ uint64_t st_spare[4]; //!< st_spare[4]
+ ino_t st_ino; //!< st_ino
+ int32_t st_ino_reserved; //!< st_ino_reserved
+ time_t st_atimeX; //!< st_atime
+ int32_t st_atime_reserved; //!< st_atime_reserved
+ time_t st_mtimeX; //!< st_mtime
+ int32_t st_mtime_reserved; //!< st_mtime_reserved
+ time_t st_ctimeX; //!< st_ctime
+ int32_t st_ctime_reserved; //!< st_ctime_reserved
+ uint64_t st_blksize; //!< st_blksize
+ uint64_t st_blocks; //!< st_blocks
+ };
+
+
+ /// For getdirentries().
+ 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
+ };
+
+
+ /// Length of strings in struct utsname (plus 1 for null char).
+ static const int _SYS_NMLN = 32;
+
+ /// Interface struct for uname().
+ struct utsname {
+ char sysname[_SYS_NMLN]; //!< System name.
+ char nodename[_SYS_NMLN]; //!< Node name.
+ char release[_SYS_NMLN]; //!< OS release.
+ char version[_SYS_NMLN]; //!< OS version.
+ char machine[_SYS_NMLN]; //!< Machine type.
+ };
+
+ //@{
+ /// ioctl() command codes.
+ 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;
+ //@}
+
+ /// Resource enumeration 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
+ };
+
+ /// Limit struct for getrlimit/setrlimit.
+ struct rlimit {
+ uint64_t rlim_cur; //!< soft limit
+ uint64_t rlim_max; //!< hard limit
+ };
+
+
+ /// For mmap().
+ static const unsigned TGT_MAP_ANONYMOUS = 0x10;
+
+
+ //@{
+ /// For getsysinfo().
+ static const unsigned GSI_PLATFORM_NAME = 103; //!< 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 CPUs in system
+ static const unsigned GSI_PHYSMEM = 19; //!< Physical memory in KB
+ static const unsigned GSI_CLK_TCK = 42; //!< clock freq in Hz
+ //@}
+
+ /// For getsysinfo() GSI_CPU_INFO option.
+ struct cpu_info {
+ uint32_t current_cpu; //!< current_cpu
+ uint32_t cpus_in_box; //!< cpus_in_box
+ uint32_t cpu_type; //!< cpu_type
+ uint32_t ncpus; //!< ncpus
+ uint64_t cpus_present; //!< cpus_present
+ uint64_t cpus_running; //!< cpus_running
+ uint64_t cpu_binding; //!< cpu_binding
+ uint64_t cpu_ex_binding; //!< cpu_ex_binding
+ uint32_t mhz; //!< mhz
+ uint32_t unused[3]; //!< future expansion
+ };
+
+ /// For gettimeofday.
+ struct timeval {
+ uint32_t tv_sec; //!< seconds
+ uint32_t tv_usec; //!< microseconds
+ };
+
+ //@{
+ /// For getrusage().
+ static const int RUSAGE_THREAD = 1;
+ static const int RUSAGE_SELF = 0;
+ static const int RUSAGE_CHILDREN = -1;
+ //@}
+
+ /// For getrusage().
+ struct rusage {
+ struct timeval ru_utime; //!< user time used
+ struct timeval ru_stime; //!< system time used
+ uint64_t ru_maxrss; //!< 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 "
+ };
+
+ /// For sigreturn().
+ 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
+ };
+
+
+ /// For table().
+ static const int TBL_SYSINFO = 12;
+
+ /// For table().
+ 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; //!< hz
+ uint64_t si_phz; //!< 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; //!< padding
+ };
+
+
+ /// For stack_create.
+ struct vm_stack {
+ // was 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.
+ // was struct memalloc_attr *
+ Addr attr; //!< allocation policy
+ uint64_t reserved; //!< reserved
+ };
+
+ /// Return values for nxm calls.
+ enum {
+ KERN_NOT_RECEIVER = 7,
+ KERN_NOT_IN_SET = 12
+ };
+
+ /// For nxm_task_init.
+ static const int NXM_TASK_INIT_VP = 2; //!< initial thread is VP
+
+ /// Task attribute structure.
+ struct nxm_task_attr {
+ int64_t nxm_callback; //!< nxm_callback
+ unsigned int nxm_version; //!< nxm_version
+ unsigned short nxm_uniq_offset; //!< nxm_uniq_offset
+ unsigned short flags; //!< flags
+ int nxm_quantum; //!< nxm_quantum
+ int pad1; //!< pad1
+ int64_t pad2; //!< pad2
+ };
+
+ /// Signal set.
+ typedef uint64_t sigset_t;
+
+ /// Thread state shared between user & kernel.
+ 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; //!< reserved1
+ int64_t nxm_active; //!< scheduler active
+ int64_t reserved2; //!< reserved2
+ };
+
+ 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]; //!< pad
+ };
+
+ /// nxm_shared.
+ 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; //!< pad1
+ int64_t space[2]; //!< future growth
+ struct nxm_sched_state nxm_ss[1]; //!< array of shared areas
+ };
+
+ /// nxm_slot_state_t.
+ enum nxm_slot_state_t {
+ NXM_SLOT_AVAIL,
+ NXM_SLOT_BOUND,
+ NXM_SLOT_UNBOUND,
+ NXM_SLOT_EMPTY
+ };
+
+ /// nxm_config_info
+ 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.
+ enum nxm_thread_type {
+ NXM_TYPE_SCS = 0,
+ NXM_TYPE_VP = 1,
+ NXM_TYPE_MANAGER = 2
+ };
+
+ /// Thread attributes.
+ struct nxm_thread_attr {
+ int version; //!< version
+ int type; //!< type
+ int cancel_flags; //!< cancel_flags
+ int priority; //!< priority
+ int policy; //!< policy
+ int signal_type; //!< signal_type
+ // void *
+ Addr pthid; //!< pthid
+ sigset_t sigmask; //!< sigmask
+ /// Initial register values.
+ struct {
+ uint64_t pc; //!< pc
+ uint64_t sp; //!< sp
+ uint64_t a0; //!< a0
+ } registers;
+ uint64_t pad2[2]; //!< pad2
+ };
+
+ /// Helper function to convert a host stat buffer to a target stat
+ /// buffer. Also copies the target buffer out to the simulated
+ /// memorty space. Used by stat(), fstat(), and lstat().
+ static void
+ copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
+ {
+ TypedBufferArg<Tru64::F64_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);
+ }
+
+
+ /// The target system's hostname.
+ static const char *hostname;
+
+ /// Target uname() handler.
+ static int
+ unameFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ TypedBufferArg<Tru64::utsname> name(xc->getSyscallArg(0));
+
+ strcpy(name->sysname, "OSF1");
+ strcpy(name->nodename, hostname);
+ strcpy(name->release, "V5.1");
+ strcpy(name->version, "732");
+ strcpy(name->machine, "alpha");
+
+ name.copyOut(xc->mem);
+ return 0;
+ }
+
+
+ /// Target getsysyinfo() handler.
+ static int
+ getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ unsigned op = xc->getSyscallArg(0);
+ unsigned nbytes = xc->getSyscallArg(2);
+
+ switch (op) {
+
+ 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 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 Tru64::GSI_PHYSMEM: {
+ TypedBufferArg<uint64_t> physmem(xc->getSyscallArg(1));
+ *physmem = 1024 * 1024; // physical memory in KB
+ physmem.copyOut(xc->mem);
+ return 1;
+ }
+
+ case Tru64::GSI_CPU_INFO: {
+ TypedBufferArg<Tru64::cpu_info> infop(xc->getSyscallArg(1));
+
+ infop->current_cpu = 0;
+ infop->cpus_in_box = process->numCpus();
+ infop->cpu_type = 57;
+ infop->ncpus = process->numCpus();
+ int cpumask = (1 << process->numCpus()) - 1;
+ infop->cpus_present = infop->cpus_running = cpumask;
+ infop->cpu_binding = 0;
+ infop->cpu_ex_binding = 0;
+ infop->mhz = 667;
+
+ infop.copyOut(xc->mem);
+ return 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 Tru64::GSI_PLATFORM_NAME: {
+ BufferArg bufArg(xc->getSyscallArg(1), nbytes);
+ strncpy((char *)bufArg.bufferPtr(),
+ "COMPAQ Professional Workstation XP1000",
+ nbytes);
+ bufArg.copyOut(xc->mem);
+ return 1;
+ }
+
+ case Tru64::GSI_CLK_TCK: {
+ TypedBufferArg<uint64_t> clk_hz(xc->getSyscallArg(1));
+ *clk_hz = 1024;
+ clk_hz.copyOut(xc->mem);
+ return 1;
+ }
+
+ default:
+ cerr << "getsysinfo: unknown op " << op << endl;
+ abort();
+ break;
+ }
+
+ return 0;
+ }
+
+ /// Target fnctl() handler.
+ 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;
+ }
+ }
+
+
+ /// Target getdirentries() handler.
+ static int
+ getdirentriesFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ 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;
+ int host_result = getdirentries(fd, host_buf, tgt_nbytes, &host_basep);
+
+ // check for error
+ if (host_result < 0) {
+ delete [] host_buf;
+ return -errno;
+ }
+
+ // no error: copy results back to target space
+ Addr tgt_buf_ptr = tgt_buf;
+ char *host_buf_ptr = host_buf;
+ char *host_buf_end = host_buf + host_result;
+ while (host_buf_ptr < host_buf_end) {
+ struct dirent *host_dp = (struct dirent *)host_buf_ptr;
+ int namelen = strlen(host_dp->d_name);
+
+ // Actual size includes padded string rounded up for alignment.
+ // Subtract 256 for dummy char array in Tru64::dirent definition.
+ // Add 1 to namelen for terminating null char.
+ 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;
+ strcpy(tgt_dp->d_name, host_dp->d_name);
+ tgt_dp.copyOut(xc->mem);
+
+ tgt_buf_ptr += tgt_bufsize;
+ host_buf_ptr += host_dp->d_reclen;
+ }
+
+ delete [] host_buf;
+
+ *basep = host_basep;
+ basep.copyOut(xc->mem);
+
+ return (tgt_buf_ptr - tgt_buf);
+ }
+
+ /// Target sigreturn() handler.
+ static int
+ sigreturnFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ RegFile *regs = &xc->regs;
+ TypedBufferArg<Tru64::sigcontext> sc(xc->getSyscallArg(0));
+
+ sc.copyIn(xc->mem);
+
+ // Restore state from sigcontext structure.
+ // Note that we'll advance PC <- NPC before the end of the cycle,
+ // so we need to restore the desired PC into NPC.
+ // The current regs->pc will get clobbered.
+ regs->npc = sc->sc_pc;
+
+ for (int i = 0; i < 31; ++i) {
+ regs->intRegFile[i] = sc->sc_regs[i];
+ regs->floatRegFile.q[i] = sc->sc_fpregs[i];
+ }
+
+ regs->miscRegs.fpcr = sc->sc_fpcr;
+
+ return 0;
+ }
+
+ /// Target table() handler.
+ static int
+ tableFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ 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 = xc->getSyscallArg(3); // number of elements
+ int lel = xc->getSyscallArg(4); // expected element size
+
+ switch (id) {
+ case Tru64::TBL_SYSINFO: {
+ if (index != 0 || nel != 1 || lel != sizeof(Tru64::tbl_sysinfo))
+ return -EINVAL;
+ TypedBufferArg<Tru64::tbl_sysinfo> elp(xc->getSyscallArg(2));
+
+ const int clk_hz = one_million;
+ elp->si_user = curTick / (ticksPerSecond / clk_hz);
+ elp->si_nice = 0;
+ elp->si_sys = 0;
+ elp->si_idle = 0;
+ elp->wait = 0;
+ elp->si_hz = clk_hz;
+ elp->si_phz = clk_hz;
+ elp->si_boottime = seconds_since_epoch; // seconds since epoch?
+ elp->si_max_procs = process->numCpus();
+ elp.copyOut(xc->mem);
+ return 0;
+ }
+
+ default:
+ cerr << "table(): id " << id << " unknown." << endl;
+ return -EINVAL;
+ }
+ }
+
+ /// Array of syscall descriptors, indexed by call number.
+ static SyscallDesc syscallDescs[];
+
+ /// Number of syscalls in syscallDescs[].
+ static const int Num_Syscall_Descs;
+
+ /// Max supported syscall number.
+ 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<Tru64::vm_stack> argp(xc->getSyscallArg(0));
+
+ argp.copyIn(xc->mem);
+
+ // if the user chose an address, just let them have it. Otherwise
+ // pick one for them.
+ if (argp->address == 0) {
+ argp->address = process->next_thread_stack_base;
+ int stack_size = (argp->rsize + argp->ysize + argp->gsize);
+ process->next_thread_stack_base -= stack_size;
+ argp.copyOut(xc->mem);
+ }
+
+ return 0;
+ }
+
+ /// NXM library version stamp.
+ static
+ const int NXM_LIB_VERSION = 301003;
+
+ /// This call sets up the interface between the user and kernel
+ /// 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<Tru64::nxm_task_attr> attrp(xc->getSyscallArg(0));
+ TypedBufferArg<Addr> configptr_ptr(xc->getSyscallArg(1));
+
+ attrp.copyIn(xc->mem);
+
+ if (attrp->nxm_version != NXM_LIB_VERSION) {
+ cerr << "nxm_task_init: thread library version mismatch! "
+ << "got " << attrp->nxm_version
+ << ", expected " << NXM_LIB_VERSION << endl;
+ abort();
+ }
+
+ if (attrp->flags != Tru64::NXM_TASK_INIT_VP) {
+ cerr << "nxm_task_init: bad flag value " << attrp->flags
+ << " (expected " << Tru64::NXM_TASK_INIT_VP << ")" << endl;
+ abort();
+ }
+
+ const Addr base_addr = 0x12000; // was 0x3f0000000LL;
+ Addr cur_addr = base_addr; // next addresses to use
+ // first comes the config_info struct
+ Addr config_addr = cur_addr;
+ 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(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(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<Tru64::nxm_config_info> config(config_addr);
+
+ config->nxm_nslots_per_rad = process->numCpus();
+ config->nxm_nrads = 1; // only one RAD in our system!
+ config->nxm_slot_state = slot_state_addr;
+ config->nxm_rad[0] = rad_state_addr;
+
+ config.copyOut(xc->mem);
+
+ // initialize the slot_state array and copy it out
+ 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) ? Tru64::NXM_SLOT_BOUND : Tru64::NXM_SLOT_AVAIL;
+ }
+
+ slot_state.copyOut(xc->mem);
+
+ // 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<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) {
+ 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;
+ ssp->nxm_u.cancel_state = 0;
+ ssp->nxm_u.nxm_ssig = 0;
+ ssp->nxm_bits = 0;
+ ssp->nxm_quantum = attrp->nxm_quantum;
+ ssp->nxm_set_quantum = attrp->nxm_quantum;
+ ssp->nxm_sysevent = 0;
+
+ if (i == 0) {
+ uint64_t uniq = xc->regs.miscRegs.uniq;
+ ssp->nxm_u.pth_id = uniq + attrp->nxm_uniq_offset;
+ ssp->nxm_u.nxm_active = uniq | 1;
+ }
+ else {
+ ssp->nxm_u.pth_id = 0;
+ ssp->nxm_u.nxm_active = 0;
+ }
+ }
+
+ rad_state.copyOut(xc->mem);
+
+ //
+ // copy pointer to shared config area out to user
+ //
+ *configptr_ptr = config_addr;
+ configptr_ptr.copyOut(xc->mem);
+
+ return 0;
+ }
+
+ /// Initialize execution context.
+ static void
+ init_exec_context(ExecContext *ec,
+ Tru64::nxm_thread_attr *attrp, uint64_t uniq_val)
+ {
+ memset(&ec->regs, 0, sizeof(ec->regs));
+
+ ec->regs.intRegFile[ArgumentReg0] = attrp->registers.a0;
+ ec->regs.intRegFile[27/*t12*/] = attrp->registers.pc;
+ ec->regs.intRegFile[StackPointerReg] = attrp->registers.sp;
+ ec->regs.miscRegs.uniq = uniq_val;
+
+ ec->regs.pc = attrp->registers.pc;
+ ec->regs.npc = attrp->registers.pc + sizeof(MachInst);
+
+ ec->setStatus(ExecContext::Active);
+ }
+
+ /// Create thread.
+ static int
+ nxm_thread_createFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ 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);
+
+ if (attrp->version != NXM_LIB_VERSION) {
+ cerr << "nxm_thread_create: thread library version mismatch! "
+ << "got " << attrp->version
+ << ", expected " << NXM_LIB_VERSION << endl;
+ abort();
+ }
+
+ if (thread_index < 0 | thread_index > process->numCpus()) {
+ cerr << "nxm_thread_create: bad thread index " << thread_index
+ << endl;
+ abort();
+ }
+
+ // On a real machine, the per-RAD shared structure is in
+ // shared memory, so both the user and kernel can get at it.
+ // We don't have that luxury, so we just copy it in and then
+ // back out again.
+ int rad_state_size =
+ (sizeof(Tru64::nxm_shared) +
+ (process->numCpus()-1) * sizeof(Tru64::nxm_sched_state));
+
+ 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 == 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.
+
+ // This is supposed to be a port number. Make something up.
+ *kidp = 99;
+ kidp.copyOut(xc->mem);
+
+ return 0;
+ } else if (attrp->type == Tru64::NXM_TYPE_VP) {
+ // A real "virtual processor" kernel thread. Need to fork
+ // this thread on another CPU.
+ Tru64::nxm_sched_state *ssp = &rad_state->nxm_ss[thread_index];
+
+ if (ssp->nxm_u.nxm_active != 0)
+ 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(Tru64::nxm_config_info);
+ int slot_state_size =
+ process->numCpus() * sizeof(Tru64::nxm_slot_state_t);
+
+ TypedBufferArg<Tru64::nxm_slot_state_t>
+ slot_state(slot_state_addr,
+ slot_state_size);
+
+ slot_state.copyIn(xc->mem);
+
+ 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] = Tru64::NXM_SLOT_BOUND;
+
+ slot_state.copyOut(xc->mem);
+
+ // Find a free simulator execution context.
+ for (int i = 0; i < process->numCpus(); ++i) {
+ ExecContext *xc = process->execContexts[i];
+
+ if (xc->status() == ExecContext::Unallocated) {
+ // inactive context... grab it
+ init_exec_context(xc, attrp, uniq_val);
+
+ // This is supposed to be a port number, but we'll try
+ // and get away with just sticking the thread index
+ // here.
+ *kidp = thread_index;
+ kidp.copyOut(xc->mem);
+
+ return 0;
+ }
+ }
+
+ // fell out of loop... no available inactive context
+ cerr << "nxm_thread_create: no idle contexts available." << endl;
+ abort();
+ } else {
+ cerr << "nxm_thread_create: can't handle thread type "
+ << attrp->type << endl;
+ abort();
+ }
+
+ return 0;
+ }
+
+ /// Thread idle call (like yield()).
+ static int
+ nxm_idleFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ return 0;
+ }
+
+ /// Block thread.
+ static int
+ nxm_thread_blockFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ 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;
+
+ return 0;
+ }
+
+ /// block.
+ static int
+ nxm_blockFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ 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;
+
+ cout << cpu->name() << ": nxm_block "
+ << hex << uaddr << dec << " " << val
+ << " " << secs << " " << usecs
+ << " " << flags << endl;
+
+ return 0;
+ }
+
+ /// Unblock thread.
+ static int
+ nxm_unblockFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr uaddr = xc->getSyscallArg(0);
+
+ cout << xc->cpu->name() << ": nxm_unblock "
+ << hex << uaddr << dec << endl;
+
+ return 0;
+ }
+
+ /// Switch thread priority.
+ static int
+ swtch_priFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ // Attempts to switch to another runnable thread (if there is
+ // one). Returns false if there are no other threads to run
+ // (i.e., the thread can reasonably spin-wait) or true if there
+ // are other threads.
+ //
+ // Since we assume at most one "kernel" thread per CPU, it's
+ // always safe to return false here.
+ return false;
+ }
+
+
+ /// Activate exec context waiting on a channel. Just activate one
+ /// by default.
+ static int
+ activate_waiting_context(Addr uaddr, Process *process,
+ bool activate_all = false)
+ {
+ int num_activated = 0;
+
+ list<Process::WaitRec>::iterator i = process->waitList.begin();
+ list<Process::WaitRec>::iterator end = process->waitList.end();
+
+ while (i != end && (num_activated == 0 || activate_all)) {
+ if (i->waitChan == uaddr) {
+ // found waiting process: make it active
+ ExecContext *newCtx = i->waitingContext;
+ assert(newCtx->status() == ExecContext::Suspended);
+ newCtx->setStatus(ExecContext::Active);
+
+ // get rid of this record
+ i = process->waitList.erase(i);
+
+ ++num_activated;
+ } else {
+ ++i;
+ }
+ }
+
+ return num_activated;
+ }
+
+ /// M5 hacked-up lock acquire.
+ static void
+ m5_lock_mutex(Addr uaddr, Process *process, ExecContext *xc)
+ {
+ TypedBufferArg<uint64_t> lockp(uaddr);
+
+ lockp.copyIn(xc->mem);
+
+ if (*lockp == 0) {
+ // lock is free: grab it
+ *lockp = 1;
+ lockp.copyOut(xc->mem);
+ } else {
+ // lock is busy: disable until free
+ process->waitList.push_back(Process::WaitRec(uaddr, xc));
+ xc->setStatus(ExecContext::Suspended);
+ }
+ }
+
+ /// M5 unlock call.
+ static void
+ m5_unlock_mutex(Addr uaddr, Process *process, ExecContext *xc)
+ {
+ TypedBufferArg<uint64_t> lockp(uaddr);
+
+ lockp.copyIn(xc->mem);
+ assert(*lockp != 0);
+
+ // Check for a process waiting on the lock.
+ int num_waiting = activate_waiting_context(uaddr, process);
+
+ // clear lock field if no waiting context is taking over the lock
+ if (num_waiting == 0) {
+ *lockp = 0;
+ lockp.copyOut(xc->mem);
+ }
+ }
+
+ /// Lock acquire syscall handler.
+ static int
+ m5_mutex_lockFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr uaddr = xc->getSyscallArg(0);
+
+ m5_lock_mutex(uaddr, process, xc);
+
+ // Return 0 since we will always return to the user with the lock
+ // acquired. We will just keep the context inactive until that is
+ // true.
+ return 0;
+ }
+
+ /// Try lock (non-blocking).
+ static int
+ m5_mutex_trylockFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr uaddr = xc->getSyscallArg(0);
+ TypedBufferArg<uint64_t> lockp(uaddr);
+
+ lockp.copyIn(xc->mem);
+
+ if (*lockp == 0) {
+ // lock is free: grab it
+ *lockp = 1;
+ lockp.copyOut(xc->mem);
+ return 0;
+ } else {
+ return 1;
+ }
+ }
+
+ /// Unlock syscall handler.
+ static int
+ m5_mutex_unlockFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr uaddr = xc->getSyscallArg(0);
+
+ m5_unlock_mutex(uaddr, process, xc);
+
+ return 0;
+ }
+
+ /// Signal ocndition.
+ static int
+ m5_cond_signalFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr cond_addr = xc->getSyscallArg(0);
+
+ // Wake up one process waiting on the condition variable.
+ activate_waiting_context(cond_addr, process);
+
+ return 0;
+ }
+
+ /// Wake up all processes waiting on the condition variable.
+ static int
+ m5_cond_broadcastFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr cond_addr = xc->getSyscallArg(0);
+
+ activate_waiting_context(cond_addr, process, true);
+
+ return 0;
+ }
+
+ /// Wait on a condition.
+ static int
+ m5_cond_waitFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ Addr cond_addr = xc->getSyscallArg(0);
+ Addr lock_addr = xc->getSyscallArg(1);
+ TypedBufferArg<uint64_t> condp(cond_addr);
+ TypedBufferArg<uint64_t> lockp(lock_addr);
+
+ // user is supposed to acquire lock before entering
+ lockp.copyIn(xc->mem);
+ assert(*lockp != 0);
+
+ m5_unlock_mutex(lock_addr, process, xc);
+
+ process->waitList.push_back(Process::WaitRec(cond_addr, xc));
+ xc->setStatus(ExecContext::Suspended);
+
+ return 0;
+ }
+
+ /// Thread exit.
+ static int
+ m5_thread_exitFunc(SyscallDesc *desc, int callnum, Process *process,
+ ExecContext *xc)
+ {
+ assert(xc->status() == ExecContext::Active);
+ xc->setStatus(ExecContext::Unallocated);
+
+ return 0;
+ }
+
+ /// Array of syscall descriptors for Mach syscalls, indexed by
+ /// (negated) call number.
+ static SyscallDesc machSyscallDescs[];
+
+ /// Number of syscalls in machSyscallDescs[].
+ static const int Num_Mach_Syscall_Descs;
+
+ /// Max supported Mach syscall number.
+ 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;
+
+ /// Do the specified syscall. Just looks the call number up in
+ /// the table and invokes the appropriate handler.
+ 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[] = {
+#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),
+ /* 3 */ SyscallDesc("m5_mutex_unlock", m5_mutex_unlockFunc),
+ /* 4 */ SyscallDesc("m5_cond_signal", m5_cond_signalFunc),
+ /* 5 */ SyscallDesc("m5_cond_broadcast", m5_cond_broadcastFunc),
+ /* 6 */ SyscallDesc("m5_cond_wait", m5_cond_waitFunc),
+ /* 7 */ SyscallDesc("m5_thread_exit", m5_thread_exitFunc),
+ /* 8 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 9 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 10 */ SyscallDesc("task_self", unimplementedFunc),
+ /* 11 */ SyscallDesc("thread_reply", unimplementedFunc),
+ /* 12 */ SyscallDesc("task_notify", unimplementedFunc),
+ /* 13 */ SyscallDesc("thread_self", unimplementedFunc),
+ /* 14 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 15 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 16 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 17 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 18 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 19 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 20 */ SyscallDesc("msg_send_trap", unimplementedFunc),
+ /* 21 */ SyscallDesc("msg_receive_trap", unimplementedFunc),
+ /* 22 */ SyscallDesc("msg_rpc_trap", unimplementedFunc),
+ /* 23 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 24 */ SyscallDesc("nxm_block", nxm_blockFunc),
+ /* 25 */ SyscallDesc("nxm_unblock", nxm_unblockFunc),
+ /* 26 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 27 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 28 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 29 */ SyscallDesc("nxm_thread_destroy", unimplementedFunc),
+ /* 30 */ SyscallDesc("lw_wire", unimplementedFunc),
+ /* 31 */ SyscallDesc("lw_unwire", unimplementedFunc),
+ /* 32 */ SyscallDesc("nxm_thread_create", nxm_thread_createFunc),
+ /* 33 */ SyscallDesc("nxm_task_init", nxm_task_initFunc),
+ /* 34 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 35 */ SyscallDesc("nxm_idle", nxm_idleFunc),
+ /* 36 */ SyscallDesc("nxm_wakeup_idle", unimplementedFunc),
+ /* 37 */ SyscallDesc("nxm_set_pthid", unimplementedFunc),
+ /* 38 */ SyscallDesc("nxm_thread_kill", unimplementedFunc),
+ /* 39 */ SyscallDesc("nxm_thread_block", nxm_thread_blockFunc),
+ /* 40 */ SyscallDesc("nxm_thread_wakeup", unimplementedFunc),
+ /* 41 */ SyscallDesc("init_process", unimplementedFunc),
+ /* 42 */ SyscallDesc("nxm_get_binding", unimplementedFunc),
+ /* 43 */ SyscallDesc("map_fd", unimplementedFunc),
+ /* 44 */ SyscallDesc("nxm_resched", unimplementedFunc),
+ /* 45 */ SyscallDesc("nxm_set_cancel", unimplementedFunc),
+ /* 46 */ SyscallDesc("nxm_set_binding", unimplementedFunc),
+ /* 47 */ SyscallDesc("stack_create", stack_createFunc),
+ /* 48 */ SyscallDesc("nxm_get_state", unimplementedFunc),
+ /* 49 */ SyscallDesc("nxm_thread_suspend", unimplementedFunc),
+ /* 50 */ SyscallDesc("nxm_thread_resume", unimplementedFunc),
+ /* 51 */ SyscallDesc("nxm_signal_check", unimplementedFunc),
+ /* 52 */ SyscallDesc("htg_unix_syscall", unimplementedFunc),
+ /* 53 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 54 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 55 */ SyscallDesc("host_self", unimplementedFunc),
+ /* 56 */ SyscallDesc("host_priv_self", unimplementedFunc),
+ /* 57 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 58 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 59 */ SyscallDesc("swtch_pri", swtch_priFunc),
+ /* 60 */ SyscallDesc("swtch", unimplementedFunc),
+ /* 61 */ SyscallDesc("thread_switch", unimplementedFunc),
+ /* 62 */ SyscallDesc("semop_fast", unimplementedFunc),
+ /* 63 */ SyscallDesc("nxm_pshared_init", unimplementedFunc),
+ /* 64 */ SyscallDesc("nxm_pshared_block", unimplementedFunc),
+ /* 65 */ SyscallDesc("nxm_pshared_unblock", unimplementedFunc),
+ /* 66 */ SyscallDesc("nxm_pshared_destroy", unimplementedFunc),
+ /* 67 */ SyscallDesc("nxm_swtch_pri", swtch_priFunc),
+ /* 68 */ SyscallDesc("lw_syscall", unimplementedFunc),
+ /* 69 */ SyscallDesc("kern_invalid", unimplementedFunc),
+ /* 70 */ SyscallDesc("mach_sctimes_0", unimplementedFunc),
+ /* 71 */ SyscallDesc("mach_sctimes_1", unimplementedFunc),
+ /* 72 */ SyscallDesc("mach_sctimes_2", unimplementedFunc),
+ /* 73 */ SyscallDesc("mach_sctimes_3", unimplementedFunc),
+ /* 74 */ SyscallDesc("mach_sctimes_4", unimplementedFunc),
+ /* 75 */ SyscallDesc("mach_sctimes_5", unimplementedFunc),
+ /* 76 */ SyscallDesc("mach_sctimes_6", unimplementedFunc),
+ /* 77 */ SyscallDesc("mach_sctimes_7", unimplementedFunc),
+ /* 78 */ SyscallDesc("mach_sctimes_8", unimplementedFunc),
+ /* 79 */ SyscallDesc("mach_sctimes_9", unimplementedFunc),
+ /* 80 */ SyscallDesc("mach_sctimes_10", unimplementedFunc),
+ /* 81 */ SyscallDesc("mach_sctimes_11", unimplementedFunc),
+ /* 82 */ SyscallDesc("mach_sctimes_port_alloc_dealloc", unimplementedFunc)
+};
+
+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;
+
+
+void
+AlphaTru64Process::syscall(ExecContext *xc)
+{
+ num_syscalls++;
+
+ int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
+
+ Tru64::doSyscall(callnum, this, 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)
+{
+}
diff --git a/arch/alpha/alpha_tru64_process.hh b/arch/alpha/alpha_tru64_process.hh
new file mode 100644
index 000000000..8e5a64b51
--- /dev/null
+++ b/arch/alpha/alpha_tru64_process.hh
@@ -0,0 +1,50 @@
+/*
+ * 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"
+
+/// A process with emulated Alpha Tru64 syscalls.
+class AlphaTru64Process : public LiveProcess
+{
+ public:
+ /// Constructor.
+ 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);
+
+ /// Syscall emulation function.
+ virtual void syscall(ExecContext *xc);
+};
+
+
+#endif // __ALPHA_TRU64_PROCESS_HH__
diff --git a/arch/alpha/fake_syscall.cc b/arch/alpha/fake_syscall.cc
deleted file mode 100644
index dc5619def..000000000
--- a/arch/alpha/fake_syscall.cc
+++ /dev/null
@@ -1,1845 +0,0 @@
-/*
- * 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 <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/prog.hh"
-#include "cpu/exec_context.hh"
-#include "sim/fake_syscall.hh"
-#include "sim/sim_events.hh"
-
-#include "targetarch/osf_syscalls.h"
-#include "sim/universe.hh" // for curTick & ticksPerSecond
-
-#include "base/trace.hh"
-
-using namespace std;
-
-//
-// System call descriptor
-//
-class SyscallDesc {
-
- public:
-
- typedef int (*FuncPtr)(SyscallDesc *, int num,
- Process *, ExecContext *);
-
- const char *name;
- FuncPtr funcPtr;
- int flags;
-
- enum Flags {
- SuppressReturnValue = 1
- };
-
- SyscallDesc(const char *_name, FuncPtr _funcPtr, int _flags = 0)
- : name(_name), funcPtr(_funcPtr), flags(_flags)
- {
- }
-
- int doFunc(int num, Process *proc, ExecContext *xc)
- {
- return (*funcPtr)(this, num, proc, 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]; }
-};
-
-
-static IntReg
-getArg(ExecContext *xc, int i)
-{
- return xc->regs.intRegFile[ArgumentReg0 + i];
-}
-
-
-//
-// used to shift args for indirect syscall
-//
-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);
-
- 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 OSF::TIOCISATTY:
- case OSF::TIOCGETP:
- case OSF::TIOCSETP:
- case OSF::TIOCSETN:
- case OSF::TIOCSETC:
- case OSF::TIOCGETC:
- return -ENOTTY;
-
- default:
- fatal("Unsupported ioctl call: ioctl(%d, 0x%x, ...)\n", fd, req);
- }
-}
-
-
-int
-openFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- string path;
-
- 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;
- }
-
- int osfFlags = getArg(xc, 1);
- int mode = getArg(xc, 2);
- int hostFlags = 0;
-
- // 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;
- }
- }
-
- // any target flags left?
- if (osfFlags != 0)
- cerr << "Syscall: open: cannot decode flags: " << osfFlags << 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);
-}
-
-
-int
-closeFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- int fd = process->sim_fd(getArg(xc, 0));
- return close(fd);
-}
-
-
-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);
-
- int bytes_read = read(fd, bufArg.bufferPtr(), nbytes);
-
- if (bytes_read != -1)
- bufArg.copyOut(xc->mem);
-
- return bytes_read;
-}
-
-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);
-
- bufArg.copyIn(xc->mem);
-
- int bytes_written = write(fd, bufArg.bufferPtr(), nbytes);
-
- fsync(fd);
-
- return bytes_written;
-}
-
-
-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);
-
- off_t result = lseek(fd, offs, whence);
-
- return (result == (off_t)-1) ? -errno : result;
-}
-
-static
-void
-copyOutStatBuf(FunctionalMemory *mem, Addr addr, struct stat *host)
-{
- TypedBufferArg<OSF::F64_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);
-}
-
-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";
-
-int
-unameFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- TypedBufferArg<OSF::utsname> name(getArg(xc, 0));
-
- strcpy(name->sysname, "OSF1");
- strcpy(name->nodename, hostname);
- strcpy(name->release, "V5.1");
- strcpy(name->version, "732");
- strcpy(name->machine, "alpha");
-
- name.copyOut(xc->mem);
- return 0;
-}
-
-
-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;
-}
-
-
-int
-getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- unsigned op = getArg(xc, 0);
- unsigned nbytes = getArg(xc, 2);
-
- switch (op) {
-
- case OSF::GSI_MAX_CPU: {
- TypedBufferArg<uint32_t> max_cpu(getArg(xc, 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));
- *cpus_in_box = process->numCpus();
- cpus_in_box.copyOut(xc->mem);
- return 1;
- }
-
- case OSF::GSI_PHYSMEM: {
- TypedBufferArg<uint64_t> physmem(getArg(xc, 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));
-
- infop->current_cpu = 0;
- infop->cpus_in_box = process->numCpus();
- infop->cpu_type = 57;
- infop->ncpus = process->numCpus();
- int cpumask = (1 << process->numCpus()) - 1;
- infop->cpus_present = infop->cpus_running = cpumask;
- infop->cpu_binding = 0;
- infop->cpu_ex_binding = 0;
- infop->mhz = 667;
-
- infop.copyOut(xc->mem);
- return 1;
- }
-
- case OSF::GSI_PROC_TYPE: {
- TypedBufferArg<uint64_t> proc_type(getArg(xc, 1));
- *proc_type = 11;
- proc_type.copyOut(xc->mem);
- return 1;
- }
-
- case OSF::GSI_PLATFORM_NAME: {
- BufferArg bufArg(getArg(xc, 1), nbytes);
- strncpy((char *)bufArg.bufferPtr(),
- "COMPAQ Professional Workstation XP1000",
- nbytes);
- bufArg.copyOut(xc->mem);
- return 1;
- }
-
- case OSF::GSI_CLK_TCK: {
- TypedBufferArg<uint64_t> clk_hz(getArg(xc, 1));
- *clk_hz = 1024;
- clk_hz.copyOut(xc->mem);
- return 1;
- }
-
- default:
- cerr << "getsysinfo: unknown op " << op << endl;
- abort();
- break;
- }
-
- 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;
-}
-
-
-int
-fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- int fd = getArg(xc,0);
-
- if (fd < 0 || process->sim_fd(fd) < 0)
- return -EBADF;
-
- int cmd = getArg(xc,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 fd flags)
- case 2: // F_SETFD (set fd flags)
- 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;
- }
-}
-
-
-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);
-
- 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;
- int host_result = getdirentries(fd, host_buf, tgt_nbytes, &host_basep);
-
- // check for error
- if (host_result < 0) {
- delete [] host_buf;
- return -errno;
- }
-
- // no error: copy results back to target space
- Addr tgt_buf_ptr = tgt_buf;
- char *host_buf_ptr = host_buf;
- char *host_buf_end = host_buf + host_result;
- while (host_buf_ptr < host_buf_end) {
- struct dirent *host_dp = (struct dirent *)host_buf_ptr;
- 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.
- // 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);
- tgt_dp->d_ino = host_dp->d_ino;
- tgt_dp->d_reclen = tgt_bufsize;
- tgt_dp->d_namlen = namelen;
- strcpy(tgt_dp->d_name, host_dp->d_name);
- tgt_dp.copyOut(xc->mem);
-
- tgt_buf_ptr += tgt_bufsize;
- host_buf_ptr += host_dp->d_reclen;
- }
-
- delete [] host_buf;
-
- *basep = host_basep;
- basep.copyOut(xc->mem);
-
- return (tgt_buf_ptr - tgt_buf);
-}
-
-
-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;
-}
-
-
-int
-sigreturnFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- RegFile *regs = &xc->regs;
- TypedBufferArg<OSF::sigcontext> sc(getArg(xc, 0));
-
- sc.copyIn(xc->mem);
-
- // Restore state from sigcontext structure.
- // Note that we'll advance PC <- NPC before the end of the cycle,
- // so we need to restore the desired PC into NPC.
- // The current regs->pc will get clobbered.
- regs->npc = sc->sc_pc;
-
- for (int i = 0; i < 31; ++i) {
- regs->intRegFile[i] = sc->sc_regs[i];
- regs->floatRegFile.q[i] = sc->sc_fpregs[i];
- }
-
- regs->miscRegs.fpcr = sc->sc_fpcr;
-
- return 0;
-}
-
-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
- // 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
-
- switch (id) {
- case OSF::TBL_SYSINFO: {
- if (index != 0 || nel != 1 || lel != sizeof(OSF::tbl_sysinfo))
- return -EINVAL;
- TypedBufferArg<OSF::tbl_sysinfo> elp(getArg(xc, 2));
-
- const int clk_hz = one_million;
- elp->si_user = curTick / (ticksPerSecond / clk_hz);
- elp->si_nice = 0;
- elp->si_sys = 0;
- elp->si_idle = 0;
- elp->wait = 0;
- elp->si_hz = clk_hz;
- elp->si_phz = clk_hz;
- elp->si_boottime = seconds_since_epoch; // seconds since epoch?
- elp->si_max_procs = process->numCpus();
- elp.copyOut(xc->mem);
- return 0;
- }
-
- default:
- cerr << "table(): id " << id << " unknown." << endl;
- return -EINVAL;
- }
-}
-
-//
-// 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();
-}
-
-
-//
-// 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;
-
-//
-// Mach syscalls -- identified by negated syscall numbers
-//
-
-// Create a stack region for a thread.
-int
-stack_createFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- TypedBufferArg<OSF::vm_stack> argp(getArg(xc, 0));
-
- argp.copyIn(xc->mem);
-
- // if the user chose an address, just let them have it. Otherwise
- // pick one for them.
- if (argp->address == 0) {
- argp->address = process->next_thread_stack_base;
- int stack_size = (argp->rsize + argp->ysize + argp->gsize);
- process->next_thread_stack_base -= stack_size;
- argp.copyOut(xc->mem);
- }
-
- return 0;
-}
-
-const int NXM_LIB_VERSION = 301003;
-
-//
-// This call sets up the interface between the user and kernel
-// schedulers by creating a shared-memory region. The shared memory
-// region has several structs, some global, some per-RAD, some per-VP.
-//
-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));
-
- attrp.copyIn(xc->mem);
-
- if (attrp->nxm_version != NXM_LIB_VERSION) {
- cerr << "nxm_task_init: thread library version mismatch! "
- << "got " << attrp->nxm_version
- << ", expected " << NXM_LIB_VERSION << endl;
- abort();
- }
-
- if (attrp->flags != OSF::NXM_TASK_INIT_VP) {
- cerr << "nxm_task_init: bad flag value " << attrp->flags
- << " (expected " << OSF::NXM_TASK_INIT_VP << ")" << endl;
- abort();
- }
-
- const Addr base_addr = 0x12000; // was 0x3f0000000LL;
- 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);
- // 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);
- 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));
- 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);
-
- config->nxm_nslots_per_rad = process->numCpus();
- config->nxm_nrads = 1; // only one RAD in our system!
- config->nxm_slot_state = slot_state_addr;
- config->nxm_rad[0] = rad_state_addr;
-
- config.copyOut(xc->mem);
-
- // initialize the slot_state array and copy it out
- TypedBufferArg<OSF::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.copyOut(xc->mem);
-
- // 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,
- 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];
- ssp->nxm_u.sigmask = 0;
- ssp->nxm_u.sig = 0;
- ssp->nxm_u.flags = 0;
- ssp->nxm_u.cancel_state = 0;
- ssp->nxm_u.nxm_ssig = 0;
- ssp->nxm_bits = 0;
- ssp->nxm_quantum = attrp->nxm_quantum;
- ssp->nxm_set_quantum = attrp->nxm_quantum;
- ssp->nxm_sysevent = 0;
-
- if (i == 0) {
- uint64_t uniq = xc->regs.miscRegs.uniq;
- ssp->nxm_u.pth_id = uniq + attrp->nxm_uniq_offset;
- ssp->nxm_u.nxm_active = uniq | 1;
- }
- else {
- ssp->nxm_u.pth_id = 0;
- ssp->nxm_u.nxm_active = 0;
- }
- }
-
- rad_state.copyOut(xc->mem);
-
- //
- // copy pointer to shared config area out to user
- //
- *configptr_ptr = config_addr;
- configptr_ptr.copyOut(xc->mem);
-
- return 0;
-}
-
-
-static void
-init_exec_context(ExecContext *ec,
- OSF::nxm_thread_attr *attrp, uint64_t uniq_val)
-{
- memset(&ec->regs, 0, sizeof(ec->regs));
-
- ec->regs.intRegFile[ArgumentReg0] = attrp->registers.a0;
- ec->regs.intRegFile[27/*t12*/] = attrp->registers.pc;
- ec->regs.intRegFile[StackPointerReg] = attrp->registers.sp;
- ec->regs.miscRegs.uniq = uniq_val;
-
- ec->regs.pc = attrp->registers.pc;
- ec->regs.npc = attrp->registers.pc + sizeof(MachInst);
-
- ec->setStatus(ExecContext::Active);
-}
-
-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);
-
- // get attribute args
- attrp.copyIn(xc->mem);
-
- if (attrp->version != NXM_LIB_VERSION) {
- cerr << "nxm_thread_create: thread library version mismatch! "
- << "got " << attrp->version
- << ", expected " << NXM_LIB_VERSION << endl;
- abort();
- }
-
- if (thread_index < 0 | thread_index > process->numCpus()) {
- cerr << "nxm_thread_create: bad thread index " << thread_index
- << endl;
- abort();
- }
-
- // On a real machine, the per-RAD shared structure is in
- // shared memory, so both the user and kernel can get at it.
- // 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));
-
- TypedBufferArg<OSF::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) {
- // 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.
-
- // This is supposed to be a port number. Make something up.
- *kidp = 99;
- kidp.copyOut(xc->mem);
-
- return 0;
- } else if (attrp->type == OSF::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];
-
- if (ssp->nxm_u.nxm_active != 0)
- return OSF::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);
-
- TypedBufferArg<OSF::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) {
- cerr << "nxm_thread_createFunc: requested VP slot "
- << thread_index << " not available!" << endl;
- fatal("");
- }
-
- slot_state[thread_index] = OSF::NXM_SLOT_BOUND;
-
- slot_state.copyOut(xc->mem);
-
- // Find a free simulator execution context.
- for (int i = 0; i < process->numCpus(); ++i) {
- ExecContext *xc = process->execContexts[i];
-
- if (xc->status() == ExecContext::Unallocated) {
- // inactive context... grab it
- init_exec_context(xc, attrp, uniq_val);
-
- // This is supposed to be a port number, but we'll try
- // and get away with just sticking the thread index
- // here.
- *kidp = thread_index;
- kidp.copyOut(xc->mem);
-
- return 0;
- }
- }
-
- // fell out of loop... no available inactive context
- cerr << "nxm_thread_create: no idle contexts available." << endl;
- abort();
- } else {
- cerr << "nxm_thread_create: can't handle thread type "
- << attrp->type << endl;
- abort();
- }
-
- return 0;
-}
-
-
-int
-nxm_idleFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- return 0;
-}
-
-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);
-
- cout << xc->cpu->name() << ": nxm_thread_block " << tid << " " << secs
- << " " << flags << " " << action << " " << usecs << endl;
-
- return 0;
-}
-
-
-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);
-
- BaseCPU *cpu = xc->cpu;
-
- cout << cpu->name() << ": nxm_block " << hex << uaddr << dec << " " << val
- << " " << secs << " " << usecs
- << " " << flags << endl;
-
- return 0;
-}
-
-
-int
-nxm_unblockFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr uaddr = getArg(xc, 0);
-
- cout << xc->cpu->name() << ": nxm_unblock "
- << hex << uaddr << dec << endl;
-
- return 0;
-}
-
-
-int
-swtch_priFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- // Attempts to switch to another runnable thread (if there is
- // one). Returns false if there are no other threads to run
- // (i.e., the thread can reasonably spin-wait) or true if there
- // are other threads.
- //
- // Since we assume at most one "kernel" thread per CPU, it's
- // always safe to return false here.
- return false;
-}
-
-
-// just activate one by default
-static int
-activate_waiting_context(Addr uaddr, Process *process,
- bool activate_all = false)
-{
- int num_activated = 0;
-
- list<Process::WaitRec>::iterator i = process->waitList.begin();
- list<Process::WaitRec>::iterator end = process->waitList.end();
-
- while (i != end && (num_activated == 0 || activate_all)) {
- if (i->waitChan == uaddr) {
- // found waiting process: make it active
- ExecContext *newCtx = i->waitingContext;
- assert(newCtx->status() == ExecContext::Suspended);
- newCtx->setStatus(ExecContext::Active);
-
- // get rid of this record
- i = process->waitList.erase(i);
-
- ++num_activated;
- } else {
- ++i;
- }
- }
-
- return num_activated;
-}
-
-
-static void
-m5_lock_mutex(Addr uaddr, Process *process, ExecContext *xc)
-{
- TypedBufferArg<uint64_t> lockp(uaddr);
-
- lockp.copyIn(xc->mem);
-
- if (*lockp == 0) {
- // lock is free: grab it
- *lockp = 1;
- lockp.copyOut(xc->mem);
- } else {
- // lock is busy: disable until free
- process->waitList.push_back(Process::WaitRec(uaddr, xc));
- xc->setStatus(ExecContext::Suspended);
- }
-}
-
-static void
-m5_unlock_mutex(Addr uaddr, Process *process, ExecContext *xc)
-{
- TypedBufferArg<uint64_t> lockp(uaddr);
-
- lockp.copyIn(xc->mem);
- assert(*lockp != 0);
-
- // Check for a process waiting on the lock.
- int num_waiting = activate_waiting_context(uaddr, process);
-
- // clear lock field if no waiting context is taking over the lock
- if (num_waiting == 0) {
- *lockp = 0;
- lockp.copyOut(xc->mem);
- }
-}
-
-
-int
-m5_mutex_lockFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr uaddr = getArg(xc, 0);
-
- m5_lock_mutex(uaddr, process, xc);
-
- // Return 0 since we will always return to the user with the lock
- // acquired. We will just keep the context inactive until that is
- // true.
- return 0;
-}
-
-
-int
-m5_mutex_trylockFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr uaddr = getArg(xc, 0);
- TypedBufferArg<uint64_t> lockp(uaddr);
-
- lockp.copyIn(xc->mem);
-
- if (*lockp == 0) {
- // lock is free: grab it
- *lockp = 1;
- lockp.copyOut(xc->mem);
- return 0;
- } else {
- return 1;
- }
-}
-
-
-int
-m5_mutex_unlockFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr uaddr = getArg(xc, 0);
-
- m5_unlock_mutex(uaddr, process, xc);
-
- return 0;
-}
-
-
-int
-m5_cond_signalFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr cond_addr = getArg(xc, 0);
-
- // Wqake up one process waiting on the condition variable.
- activate_waiting_context(cond_addr, process);
-
- return 0;
-}
-
-
-int
-m5_cond_broadcastFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr cond_addr = getArg(xc, 0);
-
- // Wake up all processes waiting on the condition variable.
- activate_waiting_context(cond_addr, process, true);
-
- return 0;
-}
-
-
-int
-m5_cond_waitFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- Addr cond_addr = getArg(xc, 0);
- Addr lock_addr = getArg(xc, 1);
- TypedBufferArg<uint64_t> condp(cond_addr);
- TypedBufferArg<uint64_t> lockp(lock_addr);
-
- // user is supposed to acquire lock before entering
- lockp.copyIn(xc->mem);
- assert(*lockp != 0);
-
- m5_unlock_mutex(lock_addr, process, xc);
-
- process->waitList.push_back(Process::WaitRec(cond_addr, xc));
- xc->setStatus(ExecContext::Suspended);
-
- return 0;
-}
-
-
-int
-m5_thread_exitFunc(SyscallDesc *desc, int callnum, Process *process,
- ExecContext *xc)
-{
- assert(xc->status() == ExecContext::Active);
- xc->setStatus(ExecContext::Unallocated);
-
- return 0;
-}
-
-
-SyscallDesc machSyscallDescs[] = {
- /* 0 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 1 */ SyscallDesc("m5_mutex_lock", m5_mutex_lockFunc),
- /* 2 */ SyscallDesc("m5_mutex_trylock", m5_mutex_trylockFunc),
- /* 3 */ SyscallDesc("m5_mutex_unlock", m5_mutex_unlockFunc),
- /* 4 */ SyscallDesc("m5_cond_signal", m5_cond_signalFunc),
- /* 5 */ SyscallDesc("m5_cond_broadcast", m5_cond_broadcastFunc),
- /* 6 */ SyscallDesc("m5_cond_wait", m5_cond_waitFunc),
- /* 7 */ SyscallDesc("m5_thread_exit", m5_thread_exitFunc),
- /* 8 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 9 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 10 */ SyscallDesc("task_self", unimplementedFunc),
- /* 11 */ SyscallDesc("thread_reply", unimplementedFunc),
- /* 12 */ SyscallDesc("task_notify", unimplementedFunc),
- /* 13 */ SyscallDesc("thread_self", unimplementedFunc),
- /* 14 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 15 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 16 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 17 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 18 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 19 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 20 */ SyscallDesc("msg_send_trap", unimplementedFunc),
- /* 21 */ SyscallDesc("msg_receive_trap", unimplementedFunc),
- /* 22 */ SyscallDesc("msg_rpc_trap", unimplementedFunc),
- /* 23 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 24 */ SyscallDesc("nxm_block", nxm_blockFunc),
- /* 25 */ SyscallDesc("nxm_unblock", nxm_unblockFunc),
- /* 26 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 27 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 28 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 29 */ SyscallDesc("nxm_thread_destroy", unimplementedFunc),
- /* 30 */ SyscallDesc("lw_wire", unimplementedFunc),
- /* 31 */ SyscallDesc("lw_unwire", unimplementedFunc),
- /* 32 */ SyscallDesc("nxm_thread_create", nxm_thread_createFunc),
- /* 33 */ SyscallDesc("nxm_task_init", nxm_task_initFunc),
- /* 34 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 35 */ SyscallDesc("nxm_idle", nxm_idleFunc),
- /* 36 */ SyscallDesc("nxm_wakeup_idle", unimplementedFunc),
- /* 37 */ SyscallDesc("nxm_set_pthid", unimplementedFunc),
- /* 38 */ SyscallDesc("nxm_thread_kill", unimplementedFunc),
- /* 39 */ SyscallDesc("nxm_thread_block", nxm_thread_blockFunc),
- /* 40 */ SyscallDesc("nxm_thread_wakeup", unimplementedFunc),
- /* 41 */ SyscallDesc("init_process", unimplementedFunc),
- /* 42 */ SyscallDesc("nxm_get_binding", unimplementedFunc),
- /* 43 */ SyscallDesc("map_fd", unimplementedFunc),
- /* 44 */ SyscallDesc("nxm_resched", unimplementedFunc),
- /* 45 */ SyscallDesc("nxm_set_cancel", unimplementedFunc),
- /* 46 */ SyscallDesc("nxm_set_binding", unimplementedFunc),
- /* 47 */ SyscallDesc("stack_create", stack_createFunc),
- /* 48 */ SyscallDesc("nxm_get_state", unimplementedFunc),
- /* 49 */ SyscallDesc("nxm_thread_suspend", unimplementedFunc),
- /* 50 */ SyscallDesc("nxm_thread_resume", unimplementedFunc),
- /* 51 */ SyscallDesc("nxm_signal_check", unimplementedFunc),
- /* 52 */ SyscallDesc("htg_unix_syscall", unimplementedFunc),
- /* 53 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 54 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 55 */ SyscallDesc("host_self", unimplementedFunc),
- /* 56 */ SyscallDesc("host_priv_self", unimplementedFunc),
- /* 57 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 58 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 59 */ SyscallDesc("swtch_pri", swtch_priFunc),
- /* 60 */ SyscallDesc("swtch", unimplementedFunc),
- /* 61 */ SyscallDesc("thread_switch", unimplementedFunc),
- /* 62 */ SyscallDesc("semop_fast", unimplementedFunc),
- /* 63 */ SyscallDesc("nxm_pshared_init", unimplementedFunc),
- /* 64 */ SyscallDesc("nxm_pshared_block", unimplementedFunc),
- /* 65 */ SyscallDesc("nxm_pshared_unblock", unimplementedFunc),
- /* 66 */ SyscallDesc("nxm_pshared_destroy", unimplementedFunc),
- /* 67 */ SyscallDesc("nxm_swtch_pri", swtch_priFunc),
- /* 68 */ SyscallDesc("lw_syscall", unimplementedFunc),
- /* 69 */ SyscallDesc("kern_invalid", unimplementedFunc),
- /* 70 */ SyscallDesc("mach_sctimes_0", unimplementedFunc),
- /* 71 */ SyscallDesc("mach_sctimes_1", unimplementedFunc),
- /* 72 */ SyscallDesc("mach_sctimes_2", unimplementedFunc),
- /* 73 */ SyscallDesc("mach_sctimes_3", unimplementedFunc),
- /* 74 */ SyscallDesc("mach_sctimes_4", unimplementedFunc),
- /* 75 */ SyscallDesc("mach_sctimes_5", unimplementedFunc),
- /* 76 */ SyscallDesc("mach_sctimes_6", unimplementedFunc),
- /* 77 */ SyscallDesc("mach_sctimes_7", unimplementedFunc),
- /* 78 */ SyscallDesc("mach_sctimes_8", unimplementedFunc),
- /* 79 */ SyscallDesc("mach_sctimes_9", unimplementedFunc),
- /* 80 */ SyscallDesc("mach_sctimes_10", unimplementedFunc),
- /* 81 */ SyscallDesc("mach_sctimes_11", unimplementedFunc),
- /* 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;
-
-
-//
-// 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];
-
- 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));
-
- doSyscall(new_callnum, process, xc);
-
- return 0;
-}
-
-
-void
-fake_syscall(Process *process, ExecContext *xc)
-{
- int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
-
- doSyscall(callnum, process, xc);
-}
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/base/remote_gdb.cc b/base/remote_gdb.cc
index 6f9b35e8b..35a90073a 100644
--- a/base/remote_gdb.cc
+++ b/base/remote_gdb.cc
@@ -222,9 +222,6 @@ RemoteGDB::RemoteGDB(System *_system, ExecContext *c)
: event(NULL), fd(-1), active(false), attached(false),
system(_system), pmem(_system->physmem), context(c)
{
-#ifdef DEBUG
- theDebugger = this;
-#endif
memset(gdbregs, 0, sizeof(gdbregs));
}
@@ -248,6 +245,9 @@ RemoteGDB::attach(int f)
attached = true;
DPRINTFN("remote gdb attached\n");
+#ifdef DEBUG
+ theDebugger = this;
+#endif
}
void
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..aaf8a9dc5 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;
@@ -213,6 +212,63 @@ SimpleCPU::execCtxStatusChg(int thread_num) {
setStatus(Idle);
}
+void
+SimpleCPU::setStatus(Status new_status)
+{
+ Status old_status = status();
+
+ // We should never even get here if the CPU has been switched out.
+ assert(old_status != SwitchedOut);
+
+ _status = new_status;
+
+ switch (status()) {
+ case IcacheMissStall:
+ assert(old_status == Running);
+ lastIcacheStall = curTick;
+ if (tickEvent.scheduled())
+ tickEvent.squash();
+ break;
+
+ case IcacheMissComplete:
+ assert(old_status == IcacheMissStall);
+ if (tickEvent.squashed())
+ tickEvent.reschedule(curTick + 1);
+ else if (!tickEvent.scheduled())
+ tickEvent.schedule(curTick + 1);
+ break;
+
+ case DcacheMissStall:
+ assert(old_status == Running);
+ lastDcacheStall = curTick;
+ if (tickEvent.scheduled())
+ tickEvent.squash();
+ break;
+
+ case Idle:
+ assert(old_status == Running);
+ notIdleFraction--;
+ if (tickEvent.scheduled())
+ tickEvent.squash();
+ break;
+
+ case Running:
+ assert(old_status == Idle ||
+ old_status == DcacheMissStall ||
+ old_status == IcacheMissComplete);
+ if (old_status == Idle)
+ notIdleFraction++;
+
+ if (tickEvent.squashed())
+ tickEvent.reschedule(curTick + 1);
+ else if (!tickEvent.scheduled())
+ tickEvent.schedule(curTick + 1);
+ break;
+
+ default:
+ panic("can't get here");
+ }
+}
void
SimpleCPU::regStats()
@@ -248,6 +304,7 @@ SimpleCPU::regStats()
.prereq(dcacheStallCycles)
;
+ idleFraction = constant(1.0) - notIdleFraction;
numInsts = Statistics::scalar(numInst) - Statistics::scalar(startNumInst);
simInsts += numInsts;
}
@@ -256,6 +313,7 @@ void
SimpleCPU::resetStats()
{
startNumInst = numInst;
+ notIdleFraction = (_status != Idle);
}
void
diff --git a/cpu/simple_cpu/simple_cpu.hh b/cpu/simple_cpu/simple_cpu.hh
index b0189349f..666fe490b 100644
--- a/cpu/simple_cpu/simple_cpu.hh
+++ b/cpu/simple_cpu/simple_cpu.hh
@@ -174,61 +174,7 @@ class SimpleCPU : public BaseCPU
virtual void execCtxStatusChg(int thread_num);
- void setStatus(Status new_status) {
- Status old_status = status();
-
- // We should never even get here if the CPU has been switched out.
- assert(old_status != SwitchedOut);
-
- _status = new_status;
-
- switch (status()) {
- case IcacheMissStall:
- assert(old_status == Running);
- lastIcacheStall = curTick;
- if (tickEvent.scheduled())
- tickEvent.squash();
- break;
-
- case IcacheMissComplete:
- assert(old_status == IcacheMissStall);
- if (tickEvent.squashed())
- tickEvent.reschedule(curTick + 1);
- else if (!tickEvent.scheduled())
- tickEvent.schedule(curTick + 1);
- break;
-
- case DcacheMissStall:
- assert(old_status == Running);
- lastDcacheStall = curTick;
- if (tickEvent.scheduled())
- tickEvent.squash();
- break;
-
- case Idle:
- assert(old_status == Running);
- idleFraction++;
- if (tickEvent.scheduled())
- tickEvent.squash();
- break;
-
- case Running:
- assert(old_status == Idle ||
- old_status == DcacheMissStall ||
- old_status == IcacheMissComplete);
- if (old_status == Idle && curTick != 0)
- idleFraction--;
-
- if (tickEvent.squashed())
- tickEvent.reschedule(curTick + 1);
- else if (!tickEvent.scheduled())
- tickEvent.schedule(curTick + 1);
- break;
-
- default:
- panic("can't get here");
- }
- }
+ void setStatus(Status new_status);
// statistics
virtual void regStats();
@@ -247,7 +193,8 @@ class SimpleCPU : public BaseCPU
Counter startNumLoad;
// number of idle cycles
- Statistics::Average<> idleFraction;
+ Statistics::Average<> notIdleFraction;
+ Statistics::Formula idleFraction;
// number of cycles stalled for I-cache misses
Statistics::Scalar<> icacheStallCycles;
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..9955d4421
--- /dev/null
+++ b/sim/syscall_emul.cc
@@ -0,0 +1,188 @@
+/*
+ * 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);
+}
+
+
+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();
+}
+
+
+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..1031b0823
--- /dev/null
+++ b/sim/syscall_emul.hh
@@ -0,0 +1,499 @@
+/*
+ * 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 for target syscall handler functions.
+ 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.
+//
+//////////////////////////////////////////////////////////////////////
+
+
+/// Handler for unimplemented syscalls that we haven't thought about.
+int unimplementedFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// 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 num, Process *p, ExecContext *xc);
+
+/// Target exit() handler: terminate simulation.
+int exitFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target getpagesize() handler.
+int getpagesizeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target obreak() handler: set brk address.
+int obreakFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target close() handler.
+int closeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target read() handler.
+int readFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target write() handler.
+int writeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target lseek() handler.
+int lseekFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target munmap() handler.
+int munmapFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc);
+
+/// Target gethostname() handler.
+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.
+//
+//////////////////////////////////////////////////////////////////////
+
+/// Target ioctl() handler. For the most part, programs call ioctl()
+/// only to find out if their stdout is a tty, to determine whether to
+/// do line or block buffering.
+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);
+ }
+}
+
+/// This struct is used to build an target-OS-dependent table that
+/// maps the target's open() flags to the host open() flags.
+struct OpenFlagTransTable {
+ int tgtFlag; //!< Target system flag value.
+ int hostFlag; //!< Corresponding host system flag value.
+};
+
+
+/// Target open() handler.
+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);
+}
+
+
+/// Target stat() handler.
+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;
+}
+
+
+/// Target lstat() handler.
+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;
+}
+
+/// Target fstat() handler.
+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;
+}
+
+
+/// Target mmap() handler.
+///
+/// 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.", xc->getSyscallArg(4));
+ }
+
+ return start;
+}
+
+/// Target getrlimit() handler.
+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;
+}
+
+/// A readable name for 1,000,000, for converting microseconds to seconds.
+const int one_million = 1000000;
+
+/// Approximate seconds since the epoch (1/1/1970). About a billion,
+/// by my reckoning. We want to keep this a constant (not use the
+/// real-world time) to keep simulations repeatable.
+const unsigned seconds_since_epoch = 1000000000;
+
+/// Helper function to convert current elapsed time to seconds and
+/// microseconds.
+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;
+}
+
+
+/// Target gettimeofday() handler.
+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;
+}
+
+
+/// Target getrusage() function.
+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__
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 04:03:30 +0000