/*
* Function for a thread that runs an arbitrary userlevel program by
* name.
*
* Note: this cannot pass arguments to the program. You may wish to
* change it so it can, because that will make testing much easier
* in the future.
*
* It copies the program name because runprogram destroys the copy
* it gets by passing it to vfs_open().
*/
static
void
cmd_progthread(void *ptr, unsigned long nargs)
{
char **args = ptr;
char progname[128];
int result;
//KASSERT(nargs >= 1);
if (nargs > 2) {
kprintf("Warning: argument passing from menu not supported\n");
}
/* Hope we fit. */
KASSERT(strlen(args[0]) < sizeof(progname));
strcpy(progname, args[0]);
result = runprogram(progname);
if (result) {
kprintf("Running program %s failed: %s\n", args[0],
strerror(result));
return;
}
sys___exit(0);
/* NOTREACHED: runprogram only returns on error. */
}
/*
* Function called when user-level code hits a fatal fault.
*/
static
void
kill_curthread(vaddr_t epc, unsigned code, vaddr_t vaddr)
{
int sig = 0;
KASSERT(code < NTRAPCODES);
switch (code) {
case EX_IRQ:
case EX_IBE:
case EX_DBE:
case EX_SYS:
/* should not be seen */
KASSERT(0);
sig = SIGABRT;
break;
case EX_MOD:
case EX_TLBL:
case EX_TLBS:
sig = SIGSEGV;
break;
case EX_ADEL:
case EX_ADES:
sig = SIGBUS;
break;
case EX_BP:
sig = SIGTRAP;
break;
case EX_RI:
sig = SIGILL;
break;
case EX_CPU:
sig = SIGSEGV;
break;
case EX_OVF:
sig = SIGFPE;
break;
}
/*
* You will probably want to change this.
*/
sys___exit(0);
kprintf("Fatal user mode trap %u sig %d (%s, epc 0x%x, vaddr 0x%x)\n",
code, sig, trapcodenames[code], epc, vaddr);
panic("I don't know how to handle this\n");
}
/*
* Function for a thread that runs an arbitrary userlevel program by
* name.
*
* Note: this cannot pass arguments to the program. You may wish to
* change it so it can, because that will make testing much easier
* in the future.
*
* It copies the program name because runprogram destroys the copy
* it gets by passing it to vfs_open().
*/
static
void
cmd_progthread(void *ptr, unsigned long nargs)
{
char **args = ptr,*ar[25];
char *progname;
int result;
KASSERT(nargs >= 1);
/*if (nargs > 2) {
kprintf("Warning: argument passing from menu not supported\n");
}*/
if(nargs==1)
args[1]=NULL;
else
args[nargs]=NULL;
/* Hope we fit. */
//KASSERT(strlen(args[0]) < sizeof(progname));
progname=kstrdup(args[0]);
//strcpy(progname, args[0]);
for(int i=0;i<(int)nargs;i++)
ar[i]=kstrdup(args[i]);
result = runprogram(progname,nargs,ar);
if (result) {
kprintf("Running program %s failed: %s\n", args[0],
strerror(result));
sys___exit(1);
return;
}
sys___exit(0);
/* NOTREACHED: runprogram only returns on error. */
}
