gem5/arch/sparc/linux/process.cc
Ali Saidi 7b283dbc09 fix merging issues
arch/alpha/isa_traits.hh:
arch/sparc/linux/process.cc:
    fix merging problem
sim/syscall_emul.cc:
    use setIntReg

--HG--
extra : convert_revision : e88d72e415493cd17d7b88c22c7e995f3199e396
2006-03-09 16:17:10 -05:00

374 lines
19 KiB
C++

/*
* Copyright (c) 2003-2005 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 "arch/sparc/common_syscall_emul.hh"
#include "arch/sparc/linux/process.hh"
#include "arch/sparc/isa_traits.hh"
#include "base/trace.hh"
#include "cpu/exec_context.hh"
#include "kern/linux/linux.hh"
#include "mem/functional/functional.hh"
#include "sim/process.hh"
#include "sim/syscall_emul.hh"
using namespace std;
using namespace SparcISA;
/// Target uname() handler.
static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
TypedBufferArg<Linux::utsname> name(xc->getSyscallArg(0));
strcpy(name->sysname, "Linux");
strcpy(name->nodename, "m5.eecs.umich.edu");
strcpy(name->release, "2.4.20");
strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
strcpy(name->machine, "sparc");
name.copyOut(xc->mem);
return 0;
}
SyscallDesc SparcLinuxProcess::syscallDescs[] = {
/* 0 */ SyscallDesc("restart_syscall", unimplementedFunc);
/* 1 */ SyscallDesc("exit", exitFunc);
/* 2 */ SyscallDesc("fork", unimplementedFunc);
/* 3 */ SyscallDesc("read", readFunc);
/* 4 */ SyscallDesc("write", writeFunc);
/* 5 */ SyscallDesc("open", openFunc<Linux>);
/* 6 */ SyscallDesc("close", closeFinc);
/* 7 */ SyscallDesc("wait4", unimplementedFunc);
/* 8 */ SyscallDesc("creat", unimplementedFunc);
/* 9 */ SyscallDesc("link", unimplementedFunc);
/* 10 */ SyscallDesc("unlink", unlinkFunc);
/* 11 */ SyscallDesc("execv", unimplementedFunc);
/* 12 */ SyscallDesc("chdir", unimplementedFunc);
/* 13 */ SyscallDesc("chown", chownFunc);
/* 14 */ SyscallDesc("mknod", unimplementedFunc);
/* 15 */ SyscallDesc("chmod", chmodFunc<Linux>);
/* 16 */ SyscallDesc("lchown", unimplementedFunc);
/* 17 */ SyscallDesc("brk", obreakFunc);
/* 18 */ SyscallDesc("perfctr", unimplementedFunc);
/* 19 */ SyscallDesc("lseek", lseekFunc);
/* 20 */ SyscallDesc("getpid", getpidFunc);
/* 21 */ SyscallDesc("capget", unimplementedFunc);
/* 22 */ SyscallDesc("capset", unimplementedFunc);
/* 23 */ SyscallDesc("setuid", setuidFunc);
/* 24 */ SyscallDesc("getuid", getuidFunc);
/* 25 */ SyscallDesc("time", unimplementedFunc);
/* 26 */ SyscallDesc("ptrace", unimplementedFunc);
/* 27 */ SyscallDesc("alarm", unimplementedFunc);
/* 28 */ SyscallDesc("sigaltstack", unimplementedFunc);
/* 29 */ SyscallDesc("pause", unimplementedFunc);
/* 30 */ SyscallDesc("utime", unimplementedFunc);
/* 31 */ SyscallDesc("lchown32", unimplementedFunc);
/* 32 */ SyscallDesc("fchown32", unimplementedFunc);
/* 33 */ SyscallDesc("access", unimplementedFunc);
/* 34 */ SyscallDesc("nice", unimplementedFunc);
/* 35 */ SyscallDesc("chown32", unimplementedFunc);
/* 36 */ SyscallDesc("sync", unimplementedFunc);
/* 37 */ SyscallDesc("kill", unimplementedFunc);
/* 38 */ SyscallDesc("stat", unimplementedFunc);
/* 39 */ SyscallDesc("sendfile", unimplementedFunc);
/* 40 */ SyscallDesc("lstat", unimplementedFunc);
/* 41 */ SyscallDesc("dup", unimplementedFunc);
/* 42 */ SyscallDesc("pipe", pipePseudoFunc);
/* 43 */ SyscallDesc("times", unimplementedFunc);
/* 44 */ SyscallDesc("getuid32", unimplementedFunc);
/* 45 */ SyscallDesc("umount2", unimplementedFunc);
/* 46 */ SyscallDesc("setgid", unimplementedFunc);
/* 47 */ SyscallDesc("getgid", getgidFunc);
/* 48 */ SyscallDesc("signal", unimplementedFunc);
/* 49 */ SyscallDesc("geteuid", geteuidFunc);
/* 50 */ SyscallDesc("getegid", getegidFunc);
/* 51 */ SyscallDesc("acct", unimplementedFunc);
/* 52 */ SyscallDesc("memory_ordering", unimplementedFunc);
/* 53 */ SyscallDesc("getgid32", unimplementedFunc);
/* 54 */ SyscallDesc("ioctl", unimplementedFunc);
/* 55 */ SyscallDesc("reboot", unimplementedFunc);
/* 56 */ SyscallDesc("mmap2", unimplementedFunc);
/* 57 */ SyscallDesc("symlink", unimplementedFunc);
/* 58 */ SyscallDesc("readlink", unimplementedFunc);
/* 59 */ SyscallDesc("execve", unimplementedFunc);
/* 60 */ SyscallDesc("umask", unimplementedFunc);
/* 61 */ SyscallDesc("chroot", unimplementedFunc);
/* 62 */ SyscallDesc("fstat", unimplementedFunc);
/* 63 */ SyscallDesc("fstat64", unimplementedFunc);
/* 64 */ SyscallDesc("getpagesize", unimplementedFunc);
/* 65 */ SyscallDesc("msync", unimplementedFunc);
/* 66 */ SyscallDesc("vfork", unimplementedFunc);
/* 67 */ SyscallDesc("pread64", unimplementedFunc);
/* 68 */ SyscallDesc("pwrite64", unimplementedFunc);
/* 69 */ SyscallDesc("geteuid32", unimplementedFunc);
/* 70 */ SyscallDesc("getdgid32", unimplementedFunc);
/* 71 */ SyscallDesc("mmap", unimplementedFunc);
/* 72 */ SyscallDesc("setreuid32", unimplementedFunc);
/* 73 */ SyscallDesc("munmap", unimplementedFunc);
/* 74 */ SyscallDesc("mprotect", unimplementedFunc);
/* 75 */ SyscallDesc("madvise", unimplementedFunc);
/* 76 */ SyscallDesc("vhangup", unimplementedFunc);
/* 77 */ SyscallDesc("truncate64", unimplementedFunc);
/* 78 */ SyscallDesc("mincore", unimplementedFunc);
/* 79 */ SyscallDesc("getgroups", unimplementedFunc);
/* 80 */ SyscallDesc("setgroups", unimplementedFunc);
/* 81 */ SyscallDesc("getpgrp", unimplementedFunc);
/* 82 */ SyscallDesc("setgroups32", unimplementedFunc);
/* 83 */ SyscallDesc("setitimer", unimplementedFunc);
/* 84 */ SyscallDesc("ftruncate64", unimplementedFunc);
/* 85 */ SyscallDesc("swapon", unimplementedFunc);
/* 86 */ SyscallDesc("getitimer", unimplementedFunc);
/* 87 */ SyscallDesc("setuid32", unimplementedFunc);
/* 88 */ SyscallDesc("sethostname", unimplementedFunc);
/* 89 */ SyscallDesc("setgid32", unimplementedFunc);
/* 90 */ SyscallDesc("dup2", unimplementedFunc);
/* 91 */ SyscallDesc("setfsuid32", unimplementedFunc);
/* 92 */ SyscallDesc("fcntl", unimplementedFunc);
/* 93 */ SyscallDesc("select", unimplementedFunc);
/* 94 */ SyscallDesc("setfsgid32", 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("rt_sigreturn", unimplementedFunc);
/* 102 */ SyscallDesc("rt_sigaction", unimplementedFunc);
/* 103 */ SyscallDesc("rt_sigprocmask", unimplementedFunc);
/* 104 */ SyscallDesc("rt_sigpending", unimplementedFunc);
/* 105 */ SyscallDesc("rt_sigtimedwait", unimplementedFunc);
/* 106 */ SyscallDesc("rt_sigqueueinfo", unimplementedFunc);
/* 107 */ SyscallDesc("rt_sigsuspend", unimplementedFunc);
/* 108 */ SyscallDesc("setresuid", unimplementedFunc);
/* 109 */ SyscallDesc("getresuid", unimplementedFunc);
/* 110 */ SyscallDesc("setresgid", unimplementedFunc);
/* 111 */ SyscallDesc("getresgid", unimplementedFunc);
/* 112 */ SyscallDesc("setregid32", unimplementedFunc);
/* 113 */ SyscallDesc("recvmsg", unimplementedFunc);
/* 114 */ SyscallDesc("sendmsg", unimplementedFunc);
/* 115 */ SyscallDesc("getgroups32", unimplementedFunc);
/* 116 */ SyscallDesc("gettimeofday", unimplementedFunc);
/* 117 */ SyscallDesc("getrusage", unimplementedFunc);
/* 118 */ SyscallDesc("getsockopt", unimplementedFunc);
/* 119 */ SyscallDesc("getcwd", unimplementedFunc);
/* 120 */ SyscallDesc("readv", unimplementedFunc);
/* 121 */ SyscallDesc("writev", unimplementedFunc);
/* 122 */ SyscallDesc("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("lstat64", 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("stat64", unimplementedFunc);
/* 140 */ SyscallDesc("sendfile64", unimplementedFunc);
/* 141 */ SyscallDesc("getpeername", unimplementedFunc);
/* 142 */ SyscallDesc("futex", unimplementedFunc);
/* 143 */ SyscallDesc("gettid", unimplementedFunc);
/* 144 */ SyscallDesc("getrlimit", unimplementedFunc);
/* 145 */ SyscallDesc("setrlimit", unimplementedFunc);
/* 146 */ SyscallDesc("pivot_root", unimplementedFunc);
/* 147 */ SyscallDesc("prctl", unimplementedFunc);
/* 148 */ SyscallDesc("pciconfig_read", unimplementedFunc);
/* 149 */ SyscallDesc("pciconfig_write", unimplementedFunc);
/* 150 */ SyscallDesc("getsockname", unimplementedFunc);
/* 151 */ SyscallDesc("inotify_init", unimplementedFunc);
/* 152 */ SyscallDesc("inotify_add_watch", unimplementedFunc);
/* 153 */ SyscallDesc("poll", unimplementedFunc);
/* 154 */ SyscallDesc("getdents64", unimplementedFunc);
/* 155 */ SyscallDesc("fcntl64", unimplementedFunc);
/* 156 */ SyscallDesc("inotify_rm_watch", unimplementedFunc);
/* 157 */ SyscallDesc("statfs", unimplementedFunc);
/* 158 */ SyscallDesc("fstatfs", unimplementedFunc);
/* 159 */ SyscallDesc("umount", unimplementedFunc);
/* 160 */ SyscallDesc("sched_set_affinity", unimplementedFunc);
/* 161 */ SyscallDesc("sched_get_affinity", unimplementedFunc);
/* 162 */ SyscallDesc("getdomainname", unimplementedFunc);
/* 163 */ SyscallDesc("setdomainname", unimplementedFunc);
/* 164 */ SyscallDesc("utrap_install", unimplementedFunc);
/* 165 */ SyscallDesc("quotactl", unimplementedFunc);
/* 166 */ SyscallDesc("set_tid_address", unimplementedFunc);
/* 167 */ SyscallDesc("mount", unimplementedFunc);
/* 168 */ SyscallDesc("ustat", unimplementedFunc);
/* 169 */ SyscallDesc("setxattr", unimplementedFunc);
/* 170 */ SyscallDesc("lsetxattr", unimplementedFunc);
/* 171 */ SyscallDesc("fsetxattr", unimplementedFunc);
/* 172 */ SyscallDesc("getxattr", unimplementedFunc);
/* 173 */ SyscallDesc("lgetxattr", unimplementedFunc);
/* 174 */ SyscallDesc("getdents", unimplementedFunc);
/* 175 */ SyscallDesc("setsid", unimplementedFunc);
/* 176 */ SyscallDesc("fchdir", unimplementedFunc);
/* 177 */ SyscallDesc("fgetxattr", unimplementedFunc);
/* 178 */ SyscallDesc("listxattr", unimplementedFunc);
/* 179 */ SyscallDesc("llistxattr", unimplementedFunc);
/* 180 */ SyscallDesc("flistxattr", unimplementedFunc);
/* 181 */ SyscallDesc("removexattr", unimplementedFunc);
/* 182 */ SyscallDesc("lremovexattr", unimplementedFunc);
/* 183 */ SyscallDesc("sigpending", unimplementedFunc);
/* 184 */ SyscallDesc("query_module", unimplementedFunc);
/* 185 */ SyscallDesc("setpgid", unimplementedFunc);
/* 186 */ SyscallDesc("fremovexattr", unimplementedFunc);
/* 187 */ SyscallDesc("tkill", unimplementedFunc);
/* 188 */ SyscallDesc("exit_group", unimplementedFunc);
/* 189 */ SyscallDesc("uname", unameFunc);
/* 190 */ SyscallDesc("init_module", unimplementedFunc);
/* 191 */ SyscallDesc("personality", unimplementedFunc);
/* 192 */ SyscallDesc("remap_file_pages", unimplementedFunc);
/* 193 */ SyscallDesc("epoll_create", unimplementedFunc);
/* 194 */ SyscallDesc("epoll_ctl", unimplementedFunc);
/* 195 */ SyscallDesc("epoll_wait", unimplementedFunc);
/* 196 */ SyscallDesc("ioprio_set", unimplementedFunc);
/* 197 */ SyscallDesc("getppid", getppidFunc);
/* 198 */ SyscallDesc("sigaction", unimplementedFunc);
/* 199 */ SyscallDesc("sgetmask", unimplementedFunc);
/* 200 */ SyscallDesc("ssetmask", unimplementedFunc);
/* 201 */ SyscallDesc("sigsuspend", unimplementedFunc);
/* 202 */ SyscallDesc("oldlstat", unimplementedFunc);
/* 203 */ SyscallDesc("uselib", unimplementedFunc);
/* 204 */ SyscallDesc("readdir", unimplementedFunc);
/* 205 */ SyscallDesc("readahead", unimplementedFunc);
/* 206 */ SyscallDesc("socketcall", unimplementedFunc);
/* 207 */ SyscallDesc("syslog", unimplementedFunc);
/* 208 */ SyscallDesc("lookup_dcookie", unimplementedFunc);
/* 209 */ SyscallDesc("fadvise64", unimplementedFunc);
/* 210 */ SyscallDesc("fadvise64_64", unimplementedFunc);
/* 211 */ SyscallDesc("tgkill", unimplementedFunc);
/* 212 */ SyscallDesc("waitpid", unimplementedFunc);
/* 213 */ SyscallDesc("swapoff", unimplementedFunc);
/* 214 */ SyscallDesc("sysinfo", unimplementedFunc);
/* 215 */ SyscallDesc("ipc", unimplementedFunc);
/* 216 */ SyscallDesc("sigreturn", unimplementedFunc);
/* 217 */ SyscallDesc("clone", unimplementedFunc);
/* 218 */ SyscallDesc("ioprio_get", unimplementedFunc);
/* 219 */ SyscallDesc("adjtimex", unimplementedFunc);
/* 220 */ SyscallDesc("sigprocmask", unimplementedFunc);
/* 221 */ SyscallDesc("create_module", unimplementedFunc);
/* 222 */ SyscallDesc("delete_module", unimplementedFunc);
/* 223 */ SyscallDesc("get_kernel_syms", unimplementedFunc);
/* 224 */ SyscallDesc("getpgid", unimplementedFunc);
/* 225 */ SyscallDesc("bdflush", unimplementedFunc);
/* 226 */ SyscallDesc("sysfs", unimplementedFunc);
/* 227 */ SyscallDesc("afs_syscall", unimplementedFunc);
/* 228 */ SyscallDesc("setfsuid", unimplementedFunc);
/* 229 */ SyscallDesc("setfsgid", unimplementedFunc);
/* 230 */ SyscallDesc("_newselect", unimplementedFunc);
/* 231 */ SyscallDesc("time", unimplementedFunc);
/* 232 */ SyscallDesc("oldstat", unimplementedFunc);
/* 233 */ SyscallDesc("stime", unimplementedFunc);
/* 234 */ SyscallDesc("statfs64", unimplementedFunc);
/* 235 */ SyscallDesc("fstatfs64", unimplementedFunc);
/* 236 */ SyscallDesc("_llseek", unimplementedFunc);
/* 237 */ SyscallDesc("mlock", unimplementedFunc);
/* 238 */ SyscallDesc("munlock", unimplementedFunc);
/* 239 */ SyscallDesc("mlockall", unimplementedFunc);
/* 240 */ SyscallDesc("munlockall", unimplementedFunc);
/* 241 */ SyscallDesc("sched_setparam", unimplementedFunc);
/* 242 */ SyscallDesc("sched_getparam", unimplementedFunc);
/* 243 */ SyscallDesc("sched_setscheduler", unimplementedFunc);
/* 244 */ SyscallDesc("sched_getscheduler", unimplementedFunc);
/* 245 */ SyscallDesc("sched_yield", unimplementedFunc);
/* 246 */ SyscallDesc("sched_get_priority_max", unimplimented);
/* 247 */ SyscallDesc("sched_get_priority_min", unimplimented);
/* 248 */ SyscallDesc("sched_rr_get_interval", unimplimented);
/* 249 */ SyscallDesc("nanosleep", unimplementedFunc);
/* 250 */ SyscallDesc("mremap", unimplementedFunc);
/* 251 */ SyscallDesc("_sysctl", unimplementedFunc);
/* 252 */ SyscallDesc("getsid", unimplementedFunc);
/* 253 */ SyscallDesc("fdatasync", unimplementedFunc);
/* 254 */ SyscallDesc("nfsservctl", unimplementedFunc);
/* 255 */ SyscallDesc("aplib", unimplementedFunc);
/* 256 */ SyscallDesc("clock_settime", unimplementedFunc);
/* 257 */ SyscallDesc("clock_gettime", unimplementedFunc);
/* 258 */ SyscallDesc("clock_getres", unimplementedFunc);
/* 259 */ SyscallDesc("clock_nanosleep", unimplementedFunc);
/* 260 */ SyscallDesc("sched_getaffinity", unimplementedFunc);
/* 261 */ SyscallDesc("sched_setaffinity", unimplementedFunc);
/* 262 */ SyscallDesc("timer_settime", unimplementedFunc);
/* 263 */ SyscallDesc("timer_gettime", unimplementedFunc);
/* 264 */ SyscallDesc("timer_getoverrun", unimplementedFunc);
/* 265 */ SyscallDesc("timer_delete", unimplementedFunc);
/* 266 */ SyscallDesc("timer_create", unimplementedFunc);
/* 267 */ SyscallDesc("vserver", unimplementedFunc);
/* 268 */ SyscallDesc("io_setup", unimplementedFunc);
/* 269 */ SyscallDesc("io_destroy", unimplementedFunc);
/* 270 */ SyscallDesc("io_submit", unimplementedFunc);
/* 271 */ SyscallDesc("io_cancel", unimplementedFunc);
/* 272 */ SyscallDesc("io_getevents", unimplementedFunc);
/* 273 */ SyscallDesc("mq_open", unimplementedFunc);
/* 274 */ SyscallDesc("mq_unlink", unimplementedFunc);
/* 275 */ SyscallDesc("mq_timedsend", unimplementedFunc);
/* 276 */ SyscallDesc("mq_timedreceive", unimplementedFunc);
/* 277 */ SyscallDesc("mq_notify", unimplementedFunc);
/* 278 */ SyscallDesc("mq_getsetattr", unimplementedFunc);
/* 279 */ SyscallDesc("waitid", unimplementedFunc);
/* 280 */ SyscallDesc("sys_setaltroot", unimplementedFunc);
/* 281 */ SyscallDesc("add_key", unimplementedFunc);
/* 282 */ SyscallDesc("request_key", unimplementedFunc);
/* 283 */ SyscallDesc("keyctl", unimplementedFunc);
};
SparcLinuxProcess::SparcLinuxProcess(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),
Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
{
// The sparc syscall table must be <= 283 entries because that is all there
// is space for.
assert(Num_Syscall_Descs <= 283);
init_regs->intRegFile[0] = 0;
}
SyscallDesc*
AlphaLinuxProcess::getDesc(int callnum)
{
if (callnum < 0 || callnum > Num_Syscall_Descs)
return NULL;
return &syscallDescs[callnum];
}