static const char *hostname;
/// Target uname() handler.
- static int
+ static SyscallReturn
unameFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
strcpy(name->machine, "alpha");
name.copyOut(xc->mem);
- return 0;
+ return SyscallReturn(0);
}
/// Target getsysyinfo() handler.
- static int
+ static SyscallReturn
getsysinfoFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
TypedBufferArg<uint32_t> max_cpu(xc->getSyscallArg(1));
*max_cpu = process->numCpus();
max_cpu.copyOut(xc->mem);
- return 1;
+ return SyscallReturn(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;
+ return SyscallReturn(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;
+ return SyscallReturn(1);
}
case Tru64::GSI_CPU_INFO: {
infop->mhz = 667;
infop.copyOut(xc->mem);
- return 1;
+ return SyscallReturn(1);
}
case Tru64::GSI_PROC_TYPE: {
TypedBufferArg<uint64_t> proc_type(xc->getSyscallArg(1));
*proc_type = 11;
proc_type.copyOut(xc->mem);
- return 1;
+ return SyscallReturn(1);
}
case Tru64::GSI_PLATFORM_NAME: {
"COMPAQ Professional Workstation XP1000",
nbytes);
bufArg.copyOut(xc->mem);
- return 1;
+ return SyscallReturn(1);
}
case Tru64::GSI_CLK_TCK: {
TypedBufferArg<uint64_t> clk_hz(xc->getSyscallArg(1));
*clk_hz = 1024;
clk_hz.copyOut(xc->mem);
- return 1;
+ return SyscallReturn(1);
}
default:
break;
}
- return 0;
+ return SyscallReturn(0);
}
/// Target fnctl() handler.
- static int
+ static SyscallReturn
fcntlFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
int fd = xc->getSyscallArg(0);
if (fd < 0 || process->sim_fd(fd) < 0)
- return -EBADF;
+ return SyscallReturn(-EBADF);
int cmd = xc->getSyscallArg(1);
switch (cmd) {
// 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;
+ return SyscallReturn(-EMFILE);
case 1: // F_GETFD (get close-on-exec flag)
case 2: // F_SETFD (set close-on-exec flag)
- return 0;
+ return SyscallReturn(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 SyscallReturn(fcntl(process->sim_fd(fd), cmd));
// return 0;
case 7: // F_GETLK (get 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;
+ return SyscallReturn(0);
default:
warn("Unknown fcntl command %d\n", cmd);
- return 0;
+ return SyscallReturn(0);
}
}
/// Target getdirentries() handler.
- static int
+ static SyscallReturn
getdirentriesFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
// check for error
if (host_result < 0) {
delete [] host_buf;
- return -errno;
+ return SyscallReturn(-errno);
}
// no error: copy results back to target space
*basep = host_basep;
basep.copyOut(xc->mem);
- return (tgt_buf_ptr - tgt_buf);
+ return SyscallReturn(tgt_buf_ptr - tgt_buf);
}
/// Target sigreturn() handler.
- static int
+ static SyscallReturn
sigreturnFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
regs->miscRegs.fpcr = sc->sc_fpcr;
- return 0;
+ return SyscallReturn(0);
}
/// Target table() handler.
- static int
+ static SyscallReturn
tableFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
switch (id) {
case Tru64::TBL_SYSINFO: {
if (index != 0 || nel != 1 || lel != sizeof(Tru64::tbl_sysinfo))
- return -EINVAL;
+ return SyscallReturn(-EINVAL);
TypedBufferArg<Tru64::tbl_sysinfo> elp(xc->getSyscallArg(2));
const int clk_hz = one_million;
elp->si_boottime = seconds_since_epoch; // seconds since epoch?
elp->si_max_procs = process->numCpus();
elp.copyOut(xc->mem);
- return 0;
+ return SyscallReturn(0);
}
default:
cerr << "table(): id " << id << " unknown." << endl;
- return -EINVAL;
+ return SyscallReturn(-EINVAL);
}
}
//
/// Create a stack region for a thread.
- static int
+ static SyscallReturn
stack_createFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
argp.copyOut(xc->mem);
}
- return 0;
+ return SyscallReturn(0);
}
/// NXM library version stamp.
/// 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
+ static SyscallReturn
nxm_task_initFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
*configptr_ptr = config_addr;
configptr_ptr.copyOut(xc->mem);
- return 0;
+ return SyscallReturn(0);
}
/// Initialize execution context.
}
/// Create thread.
- static int
+ static SyscallReturn
nxm_thread_createFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
*kidp = 99;
kidp.copyOut(xc->mem);
- return 0;
+ return SyscallReturn(0);
} else if (attrp->type == Tru64::NXM_TYPE_VP) {
// A real "virtual processor" kernel thread. Need to fork
// this thread on another CPU.
*kidp = thread_index;
kidp.copyOut(xc->mem);
- return 0;
+ return SyscallReturn(0);
}
}
abort();
}
- return 0;
+ return SyscallReturn(0);
}
/// Thread idle call (like yield()).
- static int
+ static SyscallReturn
nxm_idleFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
- return 0;
+ return SyscallReturn(0);
}
/// Block thread.
- static int
+ static SyscallReturn
nxm_thread_blockFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
cout << xc->cpu->name() << ": nxm_thread_block " << tid << " " << secs
<< " " << flags << " " << action << " " << usecs << endl;
- return 0;
+ return SyscallReturn(0);
}
/// block.
- static int
+ static SyscallReturn
nxm_blockFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
<< " " << secs << " " << usecs
<< " " << flags << endl;
- return 0;
+ return SyscallReturn(0);
}
/// Unblock thread.
- static int
+ static SyscallReturn
nxm_unblockFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
cout << xc->cpu->name() << ": nxm_unblock "
<< hex << uaddr << dec << endl;
- return 0;
+ return SyscallReturn(0);
}
/// Switch thread priority.
- static int
+ static SyscallReturn
swtch_priFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
//
// Since we assume at most one "kernel" thread per CPU, it's
// always safe to return false here.
- return false;
+ return SyscallReturn(0); //false;
}
}
/// Lock acquire syscall handler.
- static int
+ static SyscallReturn
m5_mutex_lockFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *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;
+ return SyscallReturn(0);
}
/// Try lock (non-blocking).
- static int
+ static SyscallReturn
m5_mutex_trylockFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
// lock is free: grab it
*lockp = 1;
lockp.copyOut(xc->mem);
- return 0;
+ return SyscallReturn(0);
} else {
- return 1;
+ return SyscallReturn(1);
}
}
/// Unlock syscall handler.
- static int
+ static SyscallReturn
m5_mutex_unlockFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
m5_unlock_mutex(uaddr, process, xc);
- return 0;
+ return SyscallReturn(0);
}
/// Signal ocndition.
- static int
+ static SyscallReturn
m5_cond_signalFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
// Wake up one process waiting on the condition variable.
activate_waiting_context(cond_addr, process);
- return 0;
+ return SyscallReturn(0);
}
/// Wake up all processes waiting on the condition variable.
- static int
+ static SyscallReturn
m5_cond_broadcastFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
activate_waiting_context(cond_addr, process, true);
- return 0;
+ return SyscallReturn(0);
}
/// Wait on a condition.
- static int
+ static SyscallReturn
m5_cond_waitFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
process->waitList.push_back(Process::WaitRec(cond_addr, xc));
xc->suspend();
- return 0;
+ return SyscallReturn(0);
}
/// Thread exit.
- static int
+ static SyscallReturn
m5_thread_exitFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
assert(xc->status() == ExecContext::Active);
xc->deallocate();
- return 0;
+ return SyscallReturn(0);
}
/// Array of syscall descriptors for Mach syscalls, indexed by
}
/// Indirect syscall invocation (call #0).
- static int
+ static SyscallReturn
indirectSyscallFunc(SyscallDesc *desc, int callnum, Process *process,
ExecContext *xc)
{
doSyscall(new_callnum, process, xc);
- return 0;
+ return SyscallReturn(0);
}
}; // class Tru64
projects / gem5.git / blobdiff