## diffname gnot/trap.c 1990/03091
## diff -e /dev/null /n/bootesdump/1990/03091/sys/src/9/68020/trap.c
0a
#include "u.h"
#include "lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "ureg.h"
#include "io.h"
void notify(Ureg*);
void noted(Ureg**);
void rfnote(Ureg**);
char *regname[]={
"R0",
"R1",
"R2",
"R3",
"R4",
"R5",
"R6",
"R7",
"A0",
"A1",
"A2",
"A3",
"A4",
"A5",
"A6",
"A7",
};
long ticks;
char *trapname[]={
"reset isp",
"reset ipc",
"bus error",
"address error",
"illegal instruction",
"zero divide",
"chk, chk2 instruction",
"cptrapcc, trapcc, trapv instruction",
"privilege violation",
"trace",
"line 1010 emulator",
"line 1111 emulator",
"reserved",
"coprocessor protocol violation",
"format error",
"uninitialized interrupt",
"unassigned 0x40",
"unassigned 0x44",
"unassigned 0x48",
"unassigned 0x4C",
"unassigned 0x50",
"unassigned 0x54",
"unassigned 0x58",
"unassigned 0x5C",
"spurious interrupt",
"level 1 autovector (tac)",
"level 2 autovector (port)",
"level 3 autovector (incon)",
"level 4 autovector (mouse)",
"level 5 autovector (uart)",
"level 6 autovector (sync)",
"level 7 autovector",
};
char*
excname(unsigned vo)
{
static char buf[32]; /* BUG: not reentrant! */
vo &= 0x0FFF;
vo >>= 2;
if(vo < sizeof trapname/sizeof(char*))
return trapname[vo];
sprint(buf, "offset 0x%ux", vo<<2);
return buf;
}
void
trap(Ureg *ur)
{
int user;
char buf[64];
user = !(ur->sr&SUPER);
if(u)
u->p->pc = ur->pc; /* BUG */
if(user){
sprint(buf, "pc=%lux trap: %s", ur->pc, excname(ur->vo));
postnote(u->p, 1, buf, NDebug);
}else{
print("kernel trap vo=%ux pc=%lux\n", ur->vo, ur->pc);
dumpregs(ur);
exit();
}
if(user && u->nnote)
notify(ur);
}
void
dumpstack(void)
{
ulong l, v;
extern ulong etext;
if(u)
for(l=(ulong)&l; l<USERADDR+BY2PG; l+=4){
v = *(ulong*)l;
if(KTZERO < v && v < (ulong)&etext)
print("%lux=%lux\n", l, v);
}
}
void
dumpregs(Ureg *ur)
{
int i;
ulong *l;
if(u)
print("registers for %s %d\n", u->p->text, u->p->pid);
else
print("registers for kernel\n");
print("SR=%ux PC=%lux VO=%lux, USP=%lux\n", ur->sr, ur->pc, ur->vo, ur->usp);
l = &ur->r0;
for(i=0; i<sizeof regname/sizeof(char*); i+=2, l+=2)
print("%s\t%.8lux\t%s\t%.8lux\n", regname[i], l[0], regname[i+1], l[1]);
dumpstack();
}
/*
* Call user, if necessary, with note
*/
void
notify(Ureg *ur)
{
ulong sp;
lock(&u->p->debug);
if(u->nnote==0){
unlock(&u->p->debug);
return;
}
if(u->note[0].flag!=NUser && (u->notified || u->notify==0)){
if(u->note[0].flag == NDebug)
pprint("suicide: %s\n", u->note[0].msg);
Die:
unlock(&u->p->debug);
pexit(u->note[0].msg, u->note[0].flag!=NDebug);
}
if(!u->notified){
if(!u->notify)
goto Die;
#ifdef asdfasdf
sp = ur->sp;
sp -= sizeof(Ureg);
u->ureg = (void*)sp;
memcpy((Ureg*)sp, ur, sizeof(Ureg));
sp -= ERRLEN;
memcpy((char*)sp, u->note[0].msg, ERRLEN);
sp -= 3*BY2WD;
*(ulong*)(sp+2*BY2WD) = sp+3*BY2WD; /* arg 2 is string */
*(ulong*)(sp+1*BY2WD) = (ulong)u->ureg; /* arg 1 is ureg* */
*(ulong*)(sp+0*BY2WD) = 0; /* arg 0 is pc */
ur->sp = sp;
ur->pc = (ulong)u->notify;
u->notified = 1;
u->nnote--;
memcpy(&u->note[0], &u->note[1], u->nnote*sizeof(Note));
#endif
panic("notify");
}
unlock(&u->p->debug);
}
/*
* Return user to state before notify()
*/
void
noted(Ureg **urp)
{
#ifdef asdfasdf
lock(&u->p->debug);
u->notified = 0;
memcpy(*urp, u->ureg, sizeof(Ureg));
unlock(&u->p->debug);
splhi();
rfnote(urp);
#endif
panic("noted");
}
#undef CHDIR /* BUG */
#include "/sys/src/libc/680209sys/sys.h"
typedef long Syscall(ulong*);
Syscall sysr1, sysfork, sysexec, sysgetpid, syssleep, sysexits, syslasterr, syswait;
Syscall sysopen, sysclose, sysread, syswrite, sysseek, syserrstr, sysaccess, sysstat, sysfstat;
Syscall sysdup, syschdir, sysforkpgrp, sysbind, sysmount, syspipe, syscreate, sysuserstr;
Syscall sysbrk_, sysremove, syswstat, sysfwstat;
Syscall *systab[]={
sysr1,
sysaccess,
sysbind,
syschdir,
sysclose,
sysdup,
syserrstr,
sysexec,
sysexits,
sysfork,
sysforkpgrp,
sysfstat,
syslasterr,
sysmount,
sysopen,
sysread,
sysseek,
syssleep,
sysstat,
syswait,
syswrite,
syspipe,
syscreate,
sysuserstr,
sysbrk_,
sysremove,
syswstat,
sysfwstat,
};
long
syscall(Ureg *aur)
{
long ret;
ulong sp;
ulong r0;
Ureg *ur;
u->p->insyscall = 1;
ur = aur;
if(ur->sr & SUPER)
panic("recursive system call");
#ifdef asdf
/*
* since the system call interface does not
* guarantee anything about registers
*/
if(u->p->fpstate == FPactive) {
u->p->fpstate = FPinit; /* BUG */
ur->status &= ~CU1;
}
#endif
r0 = ur->r0;
sp = ur->usp;
if(r0 >= sizeof systab/BY2WD)
panic("syscall %d\n", r0);
if(sp & (BY2WD-1))
panic("syscall odd sp");
if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-4*BY2WD))
validaddr(sp, 4*BY2WD, 0);
u->nerrlab = 0;
ret = -1;
if(!waserror())
ret = (*systab[r0])((ulong*)(sp+BY2WD));
u->nerrlab = 0;
u->p->insyscall = 0;
if(r0 == NOTED) /* ugly hack */
noted(&aur); /* doesn't return */
if(u->nnote){
ur->r0 = ret;
notify(ur);
}
{ulong *arg=(ulong*)(sp+BY2WD);
if(ret==-1)print("syscall %d(%lux %lux %lux) returns error %d\n", r0, arg[0], arg[1], arg[2], u->error.code);}
return ret;
}
void
error(Chan *c, int code)
{
if(c){
u->error.type = c->type;
u->error.dev = c->dev;
}else{
u->error.type = 0;
u->error.dev = 0;
}
u->error.code = code;
nexterror();
}
void
nexterror(void)
{
gotolabel(&u->errlab[--u->nerrlab]);
}
.
## diffname gnot/trap.c 1990/0312
## diff -e /n/bootesdump/1990/03091/sys/src/9/68020/trap.c /n/bootesdump/1990/0312/sys/src/9/68020/trap.c
246a
u->p->pc = ur->pc;
.
## diffname gnot/trap.c 1990/0315
## diff -e /n/bootesdump/1990/0312/sys/src/9/68020/trap.c /n/bootesdump/1990/0315/sys/src/9/68020/trap.c
281,282d
## diffname gnot/trap.c 1990/0321
## diff -e /n/bootesdump/1990/0315/sys/src/9/68020/trap.c /n/bootesdump/1990/0321/sys/src/9/68020/trap.c
272a
else print("syscall %d err %d %d\n", r0, u->error.type, u->error.code);
.
## diffname gnot/trap.c 1990/0322
## diff -e /n/bootesdump/1990/0321/sys/src/9/68020/trap.c /n/bootesdump/1990/0322/sys/src/9/68020/trap.c
273c
/* else print("syscall %d err %d %d\n", r0, u->error.type, u->error.code); /**/
.
## diffname gnot/trap.c 1990/0511
## diff -e /n/bootesdump/1990/0322/sys/src/9/68020/trap.c /n/bootesdump/1990/0511/sys/src/9/68020/trap.c
271,273c
if(!waserror()){
if(r1 >= sizeof systab/BY2WD){
pprint("bad sys call number %d pc %lux\n", r1, ((Ureg*)UREGADDR)->pc);
msg = "bad sys call";
Bad:
postnote(u->p, 1, msg, NDebug);
error(0, Ebadarg);
}
if(sp & (BY2WD-1)){
pprint("odd sp in sys call pc %lux sp %lux\n", ((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp);
msg = "odd stack";
goto Bad;
}
if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-4*BY2WD))
validaddr(ur->sp, 4*BY2WD, 0);
ret = (*systab[r1])((ulong*)(sp+2*BY2WD));
}
.
262,267d
## diffname gnot/trap.c 1990/0513
## diff -e /n/bootesdump/1990/0511/sys/src/9/68020/trap.c /n/bootesdump/1990/0513/sys/src/9/68020/trap.c
280c
ret = (*systab[r0])((ulong*)(sp+2*BY2WD));
.
266,267c
if(r0 >= sizeof systab/BY2WD){
pprint("bad sys call number %d pc %lux\n", r0, ((Ureg*)UREGADDR)->pc);
.
243a
char *msg;
.
7a
#include "errno.h"
.
## diffname gnot/trap.c 1990/0515
## diff -e /n/bootesdump/1990/0513/sys/src/9/68020/trap.c /n/bootesdump/1990/0515/sys/src/9/68020/trap.c
281,282c
validaddr(sp, 4*BY2WD, 0);
ret = (*systab[r0])((ulong*)(sp+BY2WD));
.
## diffname gnot/trap.c 1990/0619
## diff -e /n/bootesdump/1990/0515/sys/src/9/68020/trap.c /n/bootesdump/1990/0619/sys/src/9/68020/trap.c
188a
if(!u->notified){
unlock(&u->p->debug);
return;
}
.
## diffname gnot/trap.c 1990/08141
## diff -e /n/bootesdump/1990/0619/sys/src/9/68020/trap.c /n/bootesdump/1990/08141/sys/src/9/68020/trap.c
239a
sysnotify,
sysnoted,
.
209c
Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted;
.
## diffname gnot/trap.c 1990/0816
## diff -e /n/bootesdump/1990/08141/sys/src/9/68020/trap.c /n/bootesdump/1990/0816/sys/src/9/68020/trap.c
198,199d
187d
175,176d
170c
ur->usp = sp;
.
159,160c
sp = ur->usp;
.
## diffname gnot/trap.c 1990/08163
## diff -e /n/bootesdump/1990/0816/sys/src/9/68020/trap.c /n/bootesdump/1990/08163/sys/src/9/68020/trap.c
261c
spllo();
.
257,259c
splhi();
fpsave(&u->fpsave);
if(u->p->fpstate==FPactive || u->fpsave.type){
fprestore((FPsave*)&fpnull);
u->p->fpstate = FPinit;
m->fpstate = FPinit;
.
255c
* guarantee anything about registers, but the fpcr is more than
* just a register... BUG
.
252d
245a
long fpnull = 0;
.
## diffname gnot/trap.c 1990/0905
## diff -e /n/bootesdump/1990/08163/sys/src/9/68020/trap.c /n/bootesdump/1990/0905/sys/src/9/68020/trap.c
261c
fprestore(&initfp);
.
246d
97c
print("kernel trap vo=0x%ux pc=%lux\n", ur->vo, ur->pc);
.
## diffname gnot/trap.c 1990/1104
## diff -e /n/bootesdump/1990/0905/sys/src/9/68020/trap.c /n/bootesdump/1990/1104/sys/src/9/68020/trap.c
235a
sysfilsys,
.
203c
Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted, sysfilsys;
.
## diffname gnot/trap.c 1990/1110
## diff -e /n/bootesdump/1990/1104/sys/src/9/68020/trap.c /n/bootesdump/1990/1110/sys/src/9/68020/trap.c
281c
msg = "sys: odd stack";
.
274c
msg = "sys: bad sys call";
.
94c
sprint(buf, "sys: trap: %s", ur->pc, excname(ur->vo));
.
## diffname gnot/trap.c 1990/11211
## diff -e /n/bootesdump/1990/1110/sys/src/9/68020/trap.c /n/bootesdump/1990/11211/sys/src/9/68020/trap.c
311a
void
errors(char *err)
{
strncpy(u->error, err, NAMELEN);
nexterror();
}
.
302,309c
strncpy(u->error, errstrtab[code], NAMELEN);
.
300c
error(int code)
.
298a
#include "errstr.h"
.
284,285c
if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-5*BY2WD))
validaddr(sp, 5*BY2WD, 0);
.
277c
error(Ebadarg);
.
236c
sysdeath, /* sysfilsys */
.
229c
sysdeath,
.
218c
sysdeath,
.
212c
sysdeath,
.
207c
syserrstr,
.
202,203c
Syscall sysdup, syschdir, sysforkpgrp, sysbind, sysmount, syspipe, syscreate;
Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted;
.
200c
Syscall sysr1, sysfork, sysexec, sysgetpid, syssleep, sysexits, sysdeath, syswait;
.
## diffname gnot/trap.c 1990/1127
## diff -e /n/bootesdump/1990/11211/sys/src/9/68020/trap.c /n/bootesdump/1990/1127/sys/src/9/68020/trap.c
97c
print("kernel trap vo=0x%ux pc=0x%lux\n", ur->vo, ur->pc);
.
94c
sprint(buf, "sys: trap: pc=0x%lux %s", ur->pc, excname(ur->vo));
.
## diffname gnot/trap.c 1990/1226
## diff -e /n/bootesdump/1990/1127/sys/src/9/68020/trap.c /n/bootesdump/1990/1226/sys/src/9/68020/trap.c
298a
void
execpc(ulong entry)
{
((Ureg*)UREGADDR)->pc = entry;
}
.
## diffname gnot/trap.c 1991/0115
## diff -e /n/bootesdump/1990/1226/sys/src/9/68020/trap.c /n/bootesdump/1991/0115/sys/src/9/68020/trap.c
310c
strncpy(u->error, errstrtab[code], ERRLEN);
.
## diffname gnot/trap.c 1991/0318
## diff -e /n/bootesdump/1991/0201/sys/src/9/68020/trap.c /n/bootesdump/1991/0318/sys/src/9/gnot/trap.c
190c
memmove(*urp, u->ureg, sizeof(Ureg));
.
173c
memmove(&u->note[0], &u->note[1], u->nnote*sizeof(Note));
.
164c
memmove((char*)sp, u->note[0].msg, ERRLEN);
.
162c
memmove((Ureg*)sp, ur, sizeof(Ureg));
.
## diffname gnot/trap.c 1991/0322
## diff -e /n/bootesdump/1991/0318/sys/src/9/gnot/trap.c /n/bootesdump/1991/0322/sys/src/9/gnot/trap.c
317c
strncpy(u->error, err, ERRLEN);
.
## diffname gnot/trap.c 1991/0503
## diff -e /n/bootesdump/1991/0322/sys/src/9/gnot/trap.c /n/bootesdump/1991/0503/sys/src/9/gnot/trap.c
291c
noted(aur); /* doesn't return */
.
193c
rfnote(ur);
.
190c
memmove(ur, u->ureg, sizeof(Ureg));
.
183a
Ureg *nur;
nur = u->ureg;
validaddr(nur->pc, 1, 0);
validaddr(nur->usp, BY2WD, 0);
if(nur->sr!=u->svsr || nur->vo!=u->svvo){
pprint("bad noted ureg sr %ux vo %ux\n", nur->sr, nur->vo);
pexit("Suicide", 0);
}
.
182c
noted(Ureg *ur)
.
158a
u->svvo = ur->vo;
u->svsr = ur->sr;
.
11,12c
void noted(Ureg*);
void rfnote(Ureg*);
.
## diffname gnot/trap.c 1991/0513
## diff -e /n/bootesdump/1991/0503/sys/src/9/gnot/trap.c /n/bootesdump/1991/0513/sys/src/9/gnot/trap.c
223c
sysalarm,
.
214c
Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted, sysalarm;
.
## diffname gnot/trap.c 1991/0614
## diff -e /n/bootesdump/1991/0513/sys/src/9/gnot/trap.c /n/bootesdump/1991/0614/sys/src/9/gnot/trap.c
299c
if(u->nerrlab){
print("unbalanced error stack: %d extra\n", u->nerrlab);
for(i = 0; i < NERR; i++)
print("sp=%lux pc=%lux\n", u->errlab[i].sp, u->errlab[i].pc);
panic("bad rob");
}
.
297a
poperror();
.
295,296c
if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-(1+MAXSYSARG)*BY2WD))
validaddr(sp, (1+MAXSYSARG)*BY2WD, 0);
.
252a
int i;
.
## diffname gnot/trap.c 1991/0705
## diff -e /n/bootesdump/1991/0614/sys/src/9/gnot/trap.c /n/bootesdump/1991/0705/sys/src/9/gnot/trap.c
308c
if(r0 == NOTED) /* ugly hack */
.
306a
#endif
.
302c
print("bad errstack [%d]: %d extra\n", r0, u->nerrlab);
.
300a
#ifdef Check
.
292c
pprint("odd sp in sys call pc %lux sp %lux\n",
((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp);
.
247c
syssegattach,
syssegdetach,
syssegfree,
syssegflush,
.
229c
syssegbrk,
.
214a
Syscall syssegattach, syssegdetach, syssegfree, syssegflush, syssegbrk;
.
132a
for(;;);
.
100a
.
94c
sprint(buf, "sys: %s pc=0x%lux", excname(ur->vo), ur->pc);
.
## diffname gnot/trap.c 1991/0709
## diff -e /n/bootesdump/1991/0705/sys/src/9/gnot/trap.c /n/bootesdump/1991/0709/sys/src/9/gnot/trap.c
316d
314c
panic("error stack");
.
309d
## diffname gnot/trap.c 1991/0710
## diff -e /n/bootesdump/1991/0709/sys/src/9/gnot/trap.c /n/bootesdump/1991/0710/sys/src/9/gnot/trap.c
331,353d
210c
#include "/sys/src/libc/9syscall/sys.h"
.
## diffname gnot/trap.c 1991/0717
## diff -e /n/bootesdump/1991/0710/sys/src/9/gnot/trap.c /n/bootesdump/1991/0717/sys/src/9/gnot/trap.c
319c
noted(aur, *(ulong*)(sp+BY2WD)); /* doesn't return */
.
204,206c
ur->r0 = -1; /* return error from the interrupted call */
switch(arg0){
case NCONT:
splhi();
unlock(&u->p->debug);
rfnote(ur);
break;
/* never returns */
default:
pprint("unknown noted arg 0x%lux\n", arg0);
u->lastnote.flag = NDebug;
/* fall through */
case NTERM:
if(u->lastnote.flag == NDebug)
pprint("suicide: %s\n", u->lastnote.msg);
unlock(&u->p->debug);
pexit(u->lastnote.msg, u->lastnote.flag!=NDebug);
}
.
186c
noted(Ureg *ur, ulong arg0)
.
176a
memmove(&u->lastnote, &u->note[0], sizeof(Note));
.
11c
void noted(Ureg*, ulong);
.
## diffname gnot/trap.c 1991/0718
## diff -e /n/bootesdump/1991/0717/sys/src/9/gnot/trap.c /n/bootesdump/1991/0718/sys/src/9/gnot/trap.c
219c
case NDFLT:
.
## diffname gnot/trap.c 1991/0719
## diff -e /n/bootesdump/1991/0718/sys/src/9/gnot/trap.c /n/bootesdump/1991/0719/sys/src/9/gnot/trap.c
174a
ur->vo = 0x0080; /* pretend we're returning from syscall */
.
## diffname gnot/trap.c 1991/0722
## diff -e /n/bootesdump/1991/0719/sys/src/9/gnot/trap.c /n/bootesdump/1991/0722/sys/src/9/gnot/trap.c
164a
if(waserror()){
pprint("suicide: trap in notify\n");
unlock(&u->p->debug);
pexit("Suicide", 0);
}
validaddr((ulong)u->notify, 1, 0);
validaddr(sp-ERRLEN-3*BY2WD, sizeof(Ureg)+ERRLEN-3*BY2WD, 0);
poperror();
.
## diffname gnot/trap.c 1991/0725
## diff -e /n/bootesdump/1991/0722/sys/src/9/gnot/trap.c /n/bootesdump/1991/0725/sys/src/9/gnot/trap.c
347c
if(u->nnote && r0!=FORK){
.
214d
## diffname gnot/trap.c 1991/0727
## diff -e /n/bootesdump/1991/0725/sys/src/9/gnot/trap.c /n/bootesdump/1991/0727/sys/src/9/gnot/trap.c
150a
u->p->notepending = 0;
.
## diffname gnot/trap.c 1991/0731
## diff -e /n/bootesdump/1991/0727/sys/src/9/gnot/trap.c /n/bootesdump/1991/0731/sys/src/9/gnot/trap.c
317c
if(r0 >= sizeof systab/sizeof systab[0]){
.
239,282d
236,237c
#include "../port/systab.h"
.
## diffname gnot/trap.c 1991/0814
## diff -e /n/bootesdump/1991/0731/sys/src/9/gnot/trap.c /n/bootesdump/1991/0814/sys/src/9/gnot/trap.c
216a
if(waserror()){
pprint("suicide: trap in noted\n");
unlock(&u->p->debug);
goto Die;
}
validaddr(nur->pc, 1, 0);
validaddr(nur->usp, BY2WD, 0);
poperror();
.
211c
pprint("call to noted() when not notified\n");
goto Die;
.
205a
Die:
.
202,203d
## diffname gnot/trap.c 1991/0821
## diff -e /n/bootesdump/1991/0814/sys/src/9/gnot/trap.c /n/bootesdump/1991/0821/sys/src/9/gnot/trap.c
134c
.
## diffname gnot/trap.c 1991/0926
## diff -e /n/bootesdump/1991/0821/sys/src/9/gnot/trap.c /n/bootesdump/1991/0926/sys/src/9/gnot/trap.c
306a
u->p->psstate = 0;
.
294a
u->p->psstate = sysctab[r0];
.
## diffname gnot/trap.c 1991/1108
## diff -e /n/bootesdump/1991/0926/sys/src/9/gnot/trap.c /n/bootesdump/1991/1108/sys/src/9/gnot/trap.c
300,305c
u->nerrlab = 0;
if(u->p->procctl)
procctl(u->p);
.
273a
if(u->p->procctl)
procctl(u->p);
.
102,103c
if(user) {
if(u->p->procctl)
procctl(u->p);
if(u->nnote)
notify(ur);
}
.
## diffname gnot/trap.c 1991/1112
## diff -e /n/bootesdump/1991/1108/sys/src/9/gnot/trap.c /n/bootesdump/1991/1112/sys/src/9/gnot/trap.c
327a
}
/* This routine must save the values of registers the user is not permitted to write
* from devproc and the restore the saved values before returning
*/
void
setregisters(Ureg *xp, char *pureg, char *uva, int n)
{
ushort sr;
ulong magic;
ushort vo;
char microstate[UREGVARSZ];
sr = xp->sr;
vo = xp->vo;
magic = xp->magic;
memmove(microstate, xp->microstate, UREGVARSZ);
memmove(pureg, uva, n);
xp->sr = (sr&0xff00) |(xp->sr&0xff);
xp->vo = vo;
xp->magic = magic;
memmove(xp->microstate, microstate, UREGVARSZ);
.
317c
if(u->p->procctl || (u->nnote && r0!=FORK)){
.
309,311d
261a
u->dbgreg = aur;
.
154c
lock(&u->p->debug);
.
150,152c
if(u->p->procctl)
procctl(u->p);
if(u->nnote==0)
.
102,107c
if(user)
notify(ur);
.
92a
u->dbgreg = ur;
}
.
91c
if(u) {
.
## diffname gnot/trap.c 1991/1113
## diff -e /n/bootesdump/1991/1112/sys/src/9/gnot/trap.c /n/bootesdump/1991/1113/sys/src/9/gnot/trap.c
99c
print("kernel trap %s pc=0x%lux\n", excname(ur->vo, ur->pc), ur->pc);
.
96c
sprint(buf, "sys: %s pc=0x%lux", excname(ur->vo, ur->pc), ur->pc);
.
78a
}
.
77c
if(vo < sizeof trapname/sizeof(char*)){
/* special case, and pc will be o.k. */
if(vo==4 && *(ushort*)pc==0x4848)
return "breakpoint";
.
71c
excname(unsigned vo, ulong pc)
.
## diffname gnot/trap.c 1991/1114
## diff -e /n/bootesdump/1991/1113/sys/src/9/gnot/trap.c /n/bootesdump/1991/1114/sys/src/9/gnot/trap.c
318c
splhi();
if(r0!=FORK && (u->p->procctl || u->nnote)){
.
197a
splx(s);
.
156a
s = spllo();
.
150c
ulong s, sp;
.
## diffname gnot/trap.c 1991/1115
## diff -e /n/bootesdump/1991/1114/sys/src/9/gnot/trap.c /n/bootesdump/1991/1115/sys/src/9/gnot/trap.c
140,141d
## diffname gnot/trap.c 1991/1214
## diff -e /n/bootesdump/1991/1115/sys/src/9/gnot/trap.c /n/bootesdump/1991/1214/sys/src/9/gnot/trap.c
329a
return USTKTOP-BY2WD; /* address of user-level clock */
.
328a
ulong *sp;
sp = (ulong*)(USTKTOP - ssize);
*--sp = nargs;
((Ureg*)UREGADDR)->usp = (ulong)sp;
.
326,327c
long
execregs(ulong entry, ulong ssize, ulong nargs)
.
## diffname gnot/trap.c 1991/1216
## diff -e /n/bootesdump/1991/1214/sys/src/9/gnot/trap.c /n/bootesdump/1991/1216/sys/src/9/gnot/trap.c
246c
qunlock(&u->p->debug);
.
233c
qunlock(&u->p->debug);
.
226c
qunlock(&u->p->debug);
.
216c
qunlock(&u->p->debug);
.
214c
qlock(&u->p->debug);
.
196c
qunlock(&u->p->debug);
.
174c
qunlock(&u->p->debug);
.
162c
qunlock(&u->p->debug);
.
156c
qlock(&u->p->debug);
.
## diffname gnot/trap.c 1991/12171
## diff -e /n/bootesdump/1991/1216/sys/src/9/gnot/trap.c /n/bootesdump/1991/12171/sys/src/9/gnot/trap.c
82a
if(49<=vo && vo<=54)
return fptrapname[vo-49];
.
69a
char *fptrapname[]={
[49-49] "fp: inexact result",
[50-49] "fp: divide by zero",
[51-49] "fp: underflow",
[52-49] "fp: operand error",
[53-49] "fp: overflow",
[54-49] "fp: signaling NaN",
};
.
49c
"fp: or cp: coprocessor protocol violation",
.
43c
"fp: trapcc or cp:trapcc instruction",
.
## diffname gnot/trap.c 1991/1218
## diff -e /n/bootesdump/1991/12171/sys/src/9/gnot/trap.c /n/bootesdump/1991/1218/sys/src/9/gnot/trap.c
174c
pexit(n->msg, n->flag!=NDebug);
.
171c
pprint("suicide: %s\n", n->msg);
.
169c
n = &u->note[0];
if(strncmp(n->msg, "sys:", 4) == 0){
l = strlen(n->msg);
if(l > ERRLEN-15) /* " pc=0x12345678\0" */
l = ERRLEN-15;
sprint(n->msg+l, " pc=0x%.8lux", ur->pc);
}
if(n->flag!=NUser && (u->notified || u->notify==0)){
.
159a
Note *n;
.
158a
int l;
.
111c
sprint(buf, "sys: %s", excname(ur->vo, ur->pc));
.
92,93c
if(49<=vo && vo<=54){
sprint(buf, "fp: %s", fptrapname[vo-49]);
return buf;
}
.
90c
sprint(buf, "trap: %s", trapname[vo]);
return buf;
.
71,76c
[49-49] "inexact result",
[50-49] "divide by zero",
[51-49] "underflow",
[52-49] "operand error",
[53-49] "overflow",
[54-49] "signaling NaN",
.
49c
"coprocessor protocol violation",
.
43c
"trapcc instruction",
.
## diffname gnot/trap.c 1992/0108
## diff -e /n/bootesdump/1991/1218/sys/src/9/gnot/trap.c /n/bootesdump/1992/0108/sys/src/9/gnot/trap.c
220a
return 1;
.
168,169c
if(u->nnote == 0)
return 0;
.
159c
int
.
10d
## diffname gnot/trap.c 1992/0111
## diff -e /n/bootesdump/1992/0108/sys/src/9/gnot/trap.c /n/bootesdump/1992/0111/sys/src/9/gnot/trap.c
8c
#include "../port/error.h"
.
## diffname gnot/trap.c 1992/0120
## diff -e /n/bootesdump/1992/0111/sys/src/9/gnot/trap.c /n/bootesdump/1992/0120/sys/src/9/gnot/trap.c
360a
ulong
userpc(void)
{
return ((Ureg*)UREGADDR)->pc;
}
.
## diffname gnot/trap.c 1992/0124
## diff -e /n/bootesdump/1992/0120/sys/src/9/gnot/trap.c /n/bootesdump/1992/0124/sys/src/9/gnot/trap.c
220c
return sent;
.
189a
sent = 1;
.
186a
sent = 0;
.
161c
int l, sent;
.
## diffname gnot/trap.c 1992/0201
## diff -e /n/bootesdump/1992/0124/sys/src/9/gnot/trap.c /n/bootesdump/1992/0201/sys/src/9/gnot/trap.c
325c
pprint("odd sp in sys call pc %lux sp %lux\n",
.
## diffname gnot/trap.c 1992/0321
## diff -e /n/bootesdump/1992/0201/sys/src/9/gnot/trap.c /n/bootesdump/1992/0321/sys/src/9/gnot/trap.c
2c
#include "../port/lib.h"
.
## diffname gnot/trap.c 1992/0430
## diff -e /n/bootesdump/1992/0321/sys/src/9/gnot/trap.c /n/bootesdump/1992/0430/sys/src/9/gnot/trap.c
344c
if(r0!=RFORK && (u->p->procctl || u->nnote)){
.
## diffname gnot/trap.c 1992/0616
## diff -e /n/bootesdump/1992/0430/sys/src/9/gnot/trap.c /n/bootesdump/1992/0616/sys/src/9/gnot/trap.c
254,256d
249c
if(!okaddr(nur->pc, 1, 0) || !okaddr(nur->usp, BY2WD, 0)){
.
201,203d
196,197c
if(!okaddr((ulong)u->notify, 1, 0)
|| !okaddr(sp-ERRLEN-3*BY2WD, sizeof(Ureg)+ERRLEN-3*BY2WD, 0)){
pprint("suicide: bad address in notify\n");
.
## diffname gnot/trap.c 1992/0625
## diff -e /n/bootesdump/1992/0616/sys/src/9/gnot/trap.c /n/bootesdump/1992/0625/sys/src/9/gnot/trap.c
328c
ret = (*systab[r0])(u->s.args);
.
325,326c
if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-sizeof(Sargs)))
validaddr(sp, sizeof(Sargs), 0);
u->s = *((Sargs*)(sp+BY2WD));
.
320,323c
pprint("odd sp in sys call pc %lux sp %lux\n", ur->pc, ur->sp);
postnote(u->p, 1, "sys: odd stack", NDebug);
error(Ebadarg);
.
318a
.
313,316c
pprint("bad sys call number %d pc %lux\n", r0, ur->pc);
postnote(u->p, 1, "sys: bad sys call", NDebug);
.
281d
## diffname gnot/trap.c 1992/06271
## diff -e /n/bootesdump/1992/0625/sys/src/9/gnot/trap.c /n/bootesdump/1992/06271/sys/src/9/gnot/trap.c
340c
if(u->scallnr!=RFORK && (u->p->procctl || u->nnote)){
.
337c
if(u->scallnr == NOTED) /* ugly hack */
.
329c
ret = (*systab[u->scallnr])(u->s.args);
.
327c
u->p->psstate = sysctab[u->scallnr];
.
311,312c
if(u->scallnr >= sizeof systab/sizeof systab[0]){
pprint("bad sys call number %d pc %lux\n", u->scallnr, ur->pc);
.
305c
u->scallnr = ur->r0;
.
279d
## diffname gnot/trap.c 1992/0701
## diff -e /n/bootesdump/1992/06271/sys/src/9/gnot/trap.c /n/bootesdump/1992/0701/sys/src/9/gnot/trap.c
325c
u->s = *((Sargs*)(sp+1*BY2WD));
.
## diffname gnot/trap.c 1992/0711
## diff -e /n/bootesdump/1992/0701/sys/src/9/gnot/trap.c /n/bootesdump/1992/0711/sys/src/9/gnot/trap.c
276d
## diffname gnot/trap.c 1992/0714
## diff -e /n/bootesdump/1992/0711/sys/src/9/gnot/trap.c /n/bootesdump/1992/0714/sys/src/9/gnot/trap.c
181c
if(n->flag == NDebug)
.
## diffname gnot/trap.c 1992/0805
## diff -e /n/bootesdump/1992/0714/sys/src/9/gnot/trap.c /n/bootesdump/1992/0805/sys/src/9/gnot/trap.c
298d
286,296c
/* must save FP registers before fork */
if(u->p->fpstate==FPactive && ur->r0==RFORK){
splhi();
procsave(u->p);
spllo();
.
111c
.
108,109c
if(u)
.
## diffname gnot/trap.c 1992/0806
## diff -e /n/bootesdump/1992/0805/sys/src/9/gnot/trap.c /n/bootesdump/1992/0806/sys/src/9/gnot/trap.c
177c
sprint(n->msg+l, " pc=0x%lux", ur->pc);
.
111a
splhi();
procsave(u->p);
spllo();
.
93c
fppc = 0;
if(u)
fppc = *(ulong*)(u->fpsave.reg+8);
sprint(buf, "fp: %s fppc=0x%lux", fptrapname[vo-49], fppc);
.
81a
ulong fppc;
.
## diffname gnot/trap.c 1992/0812
## diff -e /n/bootesdump/1992/0806/sys/src/9/gnot/trap.c /n/bootesdump/1992/0812/sys/src/9/gnot/trap.c
124c
exit(1);
.
## diffname gnot/trap.c 1992/1027
## diff -e /n/bootesdump/1992/0812/sys/src/9/gnot/trap.c /n/bootesdump/1992/1027/sys/src/9/gnot/trap.c
142a
}
print("\n");
.
137,141c
if(u==0)
return;
i = 0;
for(l=(ulong)&l; l<USERADDR+BY2PG; l+=4){
v = *(ulong*)l;
if(KTZERO < v && v < (ulong)&etext){
print("%lux\t", v);
if(++i == 4){
i = 0;
print("\n");
}
.
134c
ulong l, v, i;
.
## diffname gnot/trap.c 1993/0501 # deleted
## diff -e /n/bootesdump/1992/1027/sys/src/9/gnot/trap.c /n/fornaxdump/1993/0501/sys/src/brazil/gnot/trap.c
1,394d
|
