1991/0115/gnot/trap.c (diff list | history)

1990/03091/sys/src/9/gnot/trap.c:244,249 – 1990/0312/sys/src/9/gnot/trap.c:244,250 (short | long)
1990/03091		u->p->insyscall = 1; ur = aur;
1990/0312		u->p->pc = ur->pc;
1990/03091		if(ur->sr & SUPER) panic("recursive system call"); #ifdef asdf
1990/0312/sys/src/9/gnot/trap.c:278,285 – 1990/0315/sys/src/9/gnot/trap.c:278,283 (short | long)
1990/03091		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; }
1990/0315/sys/src/9/gnot/trap.c:270,275 – 1990/0321/sys/src/9/gnot/trap.c:270,276 (short | long)
1990/03091		ret = -1; if(!waserror()) ret = (*systab[r0])((ulong*)(sp+BY2WD));
1990/0321		else print("syscall %d err %d %d\n", r0, u->error.type, u->error.code);
1990/03091		u->nerrlab = 0; u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */
1990/0321/sys/src/9/gnot/trap.c:270,276 – 1990/0322/sys/src/9/gnot/trap.c:270,276 (short | long)
1990/03091		ret = -1; if(!waserror()) ret = (*systab[r0])((ulong*)(sp+BY2WD));
1990/0321		else print("syscall %d err %d %d\n", r0, u->error.type, u->error.code);
1990/0322		/* else print("syscall %d err %d %d\n", r0, u->error.type, u->error.code); /**/
1990/03091		u->nerrlab = 0; u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */
1990/0322/sys/src/9/gnot/trap.c:259,276 – 1990/0511/sys/src/9/gnot/trap.c:259,284 (short | long)
1990/03091		#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));
1990/0322		/* else print("syscall %d err %d %d\n", r0, u->error.type, u->error.code); /**/
1990/0511		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)); }
1990/03091		u->nerrlab = 0; u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */
1990/0511/sys/src/9/gnot/trap.c:5,10 – 1990/0513/sys/src/9/gnot/trap.c:5,11 (short | long)
1990/03091		#include "fns.h" #include "ureg.h" #include "io.h"
1990/0513		#include "errno.h"
1990/03091		void notify(Ureg*); void noted(Ureg**);
1990/0511/sys/src/9/gnot/trap.c:241,246 – 1990/0513/sys/src/9/gnot/trap.c:242,248
1990/03091		ulong sp; ulong r0; Ureg *ur;
1990/0513		char *msg;
1990/03091		u->p->insyscall = 1; ur = aur;
1990/0511/sys/src/9/gnot/trap.c:263,270 – 1990/0513/sys/src/9/gnot/trap.c:265,272
1990/03091		u->nerrlab = 0; ret = -1;
1990/0511		if(!waserror()){ if(r1 >= sizeof systab/BY2WD){ pprint("bad sys call number %d pc %lux\n", r1, ((Ureg*)UREGADDR)->pc);
1990/0513		if(r0 >= sizeof systab/BY2WD){ pprint("bad sys call number %d pc %lux\n", r0, ((Ureg*)UREGADDR)->pc);
1990/0511		msg = "bad sys call"; Bad: postnote(u->p, 1, msg, NDebug);
1990/0511/sys/src/9/gnot/trap.c:277,283 – 1990/0513/sys/src/9/gnot/trap.c:279,285
1990/0511		} if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-4*BY2WD)) validaddr(ur->sp, 4*BY2WD, 0); ret = (*systab[r1])((ulong*)(sp+2*BY2WD));
1990/0513		ret = (*systab[r0])((ulong*)(sp+2*BY2WD));
1990/0511		}
1990/03091		u->nerrlab = 0; u->p->insyscall = 0;
1990/0513/sys/src/9/gnot/trap.c:278,285 – 1990/0515/sys/src/9/gnot/trap.c:278,285 (short | long)
1990/0511		goto Bad; } if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-4*BY2WD)) validaddr(ur->sp, 4*BY2WD, 0);
1990/0513		ret = (*systab[r0])((ulong*)(sp+2*BY2WD));
1990/0515		validaddr(sp, 4*BY2WD, 0); ret = (*systab[r0])((ulong*)(sp+BY2WD));
1990/0511		}
1990/03091		u->nerrlab = 0; u->p->insyscall = 0;
1990/0515/sys/src/9/gnot/trap.c:186,191 – 1990/0619/sys/src/9/gnot/trap.c:186,195 (short | long)
1990/03091		{ #ifdef asdfasdf lock(&u->p->debug);
1990/0619		if(!u->notified){ unlock(&u->p->debug); return; }
1990/03091		u->notified = 0; memcpy(*urp, u->ureg, sizeof(Ureg)); unlock(&u->p->debug);
1990/0619/sys/src/9/gnot/trap.c:206,212 – 1990/08141/sys/src/9/gnot/trap.c:206,212 (short | long)
1990/03091		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;
1990/08141		Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted;
1990/03091		Syscall *systab[]={ sysr1,
1990/0619/sys/src/9/gnot/trap.c:237,242 – 1990/08141/sys/src/9/gnot/trap.c:237,244
1990/03091		sysremove, syswstat, sysfwstat,
1990/08141		sysnotify, sysnoted,
1990/03091		}; long
1990/08141/sys/src/9/gnot/trap.c:156,163 – 1990/0816/sys/src/9/gnot/trap.c:156,162 (short | long)
1990/03091		if(!u->notified){ if(!u->notify) goto Die; #ifdef asdfasdf sp = ur->sp;
1990/0816		sp = ur->usp;
1990/03091		sp -= sizeof(Ureg); u->ureg = (void*)sp; memcpy((Ureg*)sp, ur, sizeof(Ureg));
1990/08141/sys/src/9/gnot/trap.c:167,179 – 1990/0816/sys/src/9/gnot/trap.c:166,176
1990/03091		*(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;
1990/0816		ur->usp = sp;
1990/03091		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); }
1990/08141/sys/src/9/gnot/trap.c:184,190 – 1990/0816/sys/src/9/gnot/trap.c:181,186
1990/03091		void noted(Ureg **urp) { #ifdef asdfasdf lock(&u->p->debug);
1990/0619		if(!u->notified){ unlock(&u->p->debug);
1990/08141/sys/src/9/gnot/trap.c:195,202 – 1990/0816/sys/src/9/gnot/trap.c:191,196
1990/03091		unlock(&u->p->debug); splhi(); rfnote(urp); #endif panic("noted"); } #undef CHDIR /* BUG */
1990/0816/sys/src/9/gnot/trap.c:243,248 – 1990/08163/sys/src/9/gnot/trap.c:243,249 (short | long)
1990/03091		ulong r0; Ureg *ur;
1990/0513		char *msg;
1990/08163		long fpnull = 0;
1990/03091		u->p->insyscall = 1; ur = aur;
1990/0816/sys/src/9/gnot/trap.c:249,264 – 1990/08163/sys/src/9/gnot/trap.c:250,268
1990/0312		u->p->pc = ur->pc;
1990/03091		if(ur->sr & SUPER) panic("recursive system call"); #ifdef asdf /* * since the system call interface does not * guarantee anything about registers
1990/08163		* guarantee anything about registers, but the fpcr is more than * just a register... BUG
1990/03091		*/ if(u->p->fpstate == FPactive) { u->p->fpstate = FPinit; /* BUG */ ur->status &= ~CU1;
1990/08163		splhi(); fpsave(&u->fpsave); if(u->p->fpstate==FPactive || u->fpsave.type){ fprestore((FPsave*)&fpnull); u->p->fpstate = FPinit; m->fpstate = FPinit;
1990/03091		} #endif
1990/08163		spllo();
1990/03091		r0 = ur->r0; sp = ur->usp;
1990/08163/sys/src/9/gnot/trap.c:94,100 – 1990/0905/sys/src/9/gnot/trap.c:94,100 (short | long)
1990/03091		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);
1990/0905		print("kernel trap vo=0x%ux pc=%lux\n", ur->vo, ur->pc);
1990/03091		dumpregs(ur); exit(); }
1990/08163/sys/src/9/gnot/trap.c:243,249 – 1990/0905/sys/src/9/gnot/trap.c:243,248
1990/03091		ulong r0; Ureg *ur;
1990/0513		char *msg;
1990/08163		long fpnull = 0;
1990/03091		u->p->insyscall = 1; ur = aur;
1990/08163/sys/src/9/gnot/trap.c:258,264 – 1990/0905/sys/src/9/gnot/trap.c:257,263
1990/08163		splhi(); fpsave(&u->fpsave); if(u->p->fpstate==FPactive || u->fpsave.type){ fprestore((FPsave*)&fpnull);
1990/0905		fprestore(&initfp);
1990/08163		u->p->fpstate = FPinit; m->fpstate = FPinit;
1990/03091		}
1990/0905/sys/src/9/gnot/trap.c:200,206 – 1990/1104/sys/src/9/gnot/trap.c:200,206 (short | long)
1990/03091		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;
1990/08141		Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted;
1990/1104		Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted, sysfilsys;
1990/03091		Syscall *systab[]={ sysr1,
1990/0905/sys/src/9/gnot/trap.c:233,238 – 1990/1104/sys/src/9/gnot/trap.c:233,239
1990/03091		sysfwstat,
1990/08141		sysnotify, sysnoted,
1990/1104		sysfilsys,
1990/03091		}; long
1990/1104/sys/src/9/gnot/trap.c:91,97 – 1990/1110/sys/src/9/gnot/trap.c:91,97 (short | long)
1990/03091		if(u) u->p->pc = ur->pc; /* BUG */ if(user){ sprint(buf, "pc=%lux trap: %s", ur->pc, excname(ur->vo));
1990/1110		sprint(buf, "sys: trap: %s", ur->pc, excname(ur->vo));
1990/03091		postnote(u->p, 1, buf, NDebug); }else{
1990/0905		print("kernel trap vo=0x%ux pc=%lux\n", ur->vo, ur->pc);
1990/1104/sys/src/9/gnot/trap.c:271,277 – 1990/1110/sys/src/9/gnot/trap.c:271,277
1990/0511		if(!waserror()){
1990/0513		if(r0 >= sizeof systab/BY2WD){ pprint("bad sys call number %d pc %lux\n", r0, ((Ureg*)UREGADDR)->pc);
1990/0511		msg = "bad sys call";
1990/1110		msg = "sys: bad sys call";
1990/0511		Bad: postnote(u->p, 1, msg, NDebug); error(0, Ebadarg);
1990/1104/sys/src/9/gnot/trap.c:278,284 – 1990/1110/sys/src/9/gnot/trap.c:278,284
1990/0511		} if(sp & (BY2WD-1)){ pprint("odd sp in sys call pc %lux sp %lux\n", ((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp); msg = "odd stack";
1990/1110		msg = "sys: odd stack";
1990/0511		goto Bad; } if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-4*BY2WD))
1990/1110/sys/src/9/gnot/trap.c:197,221 – 1990/11211/sys/src/9/gnot/trap.c:197,221 (short | long)
1990/03091		#include "/sys/src/libc/680209sys/sys.h" typedef long Syscall(ulong*); Syscall sysr1, sysfork, sysexec, sysgetpid, syssleep, sysexits, syslasterr, syswait;
1990/11211		Syscall sysr1, sysfork, sysexec, sysgetpid, syssleep, sysexits, sysdeath, syswait;
1990/03091		Syscall sysopen, sysclose, sysread, syswrite, sysseek, syserrstr, sysaccess, sysstat, sysfstat; Syscall sysdup, syschdir, sysforkpgrp, sysbind, sysmount, syspipe, syscreate, sysuserstr;
1990/1104		Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted, sysfilsys;
1990/11211		Syscall sysdup, syschdir, sysforkpgrp, sysbind, sysmount, syspipe, syscreate; Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted;
1990/03091		Syscall *systab[]={ sysr1, sysaccess,
1990/11211		syserrstr,
1990/03091		sysbind, syschdir, sysclose, sysdup, syserrstr,
1990/11211		sysdeath,
1990/03091		sysexec, sysexits, sysfork, sysforkpgrp, sysfstat, syslasterr,
1990/11211		sysdeath,
1990/03091		sysmount, sysopen, sysread,
1990/1110/sys/src/9/gnot/trap.c:226,232 – 1990/11211/sys/src/9/gnot/trap.c:226,232
1990/03091		syswrite, syspipe, syscreate, sysuserstr,
1990/11211		sysdeath,
1990/03091		sysbrk_, sysremove, syswstat,
1990/1110/sys/src/9/gnot/trap.c:233,239 – 1990/11211/sys/src/9/gnot/trap.c:233,239
1990/03091		sysfwstat,
1990/08141		sysnotify, sysnoted,
1990/1104		sysfilsys,
1990/11211		sysdeath, /* sysfilsys */
1990/03091		}; long
1990/1110/sys/src/9/gnot/trap.c:274,280 – 1990/11211/sys/src/9/gnot/trap.c:274,280
1990/1110		msg = "sys: bad sys call";
1990/0511		Bad: postnote(u->p, 1, msg, NDebug); error(0, Ebadarg);
1990/11211		error(Ebadarg);
1990/0511		} if(sp & (BY2WD-1)){ pprint("odd sp in sys call pc %lux sp %lux\n", ((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp);
1990/1110/sys/src/9/gnot/trap.c:281,288 – 1990/11211/sys/src/9/gnot/trap.c:281,288
1990/1110		msg = "sys: odd stack";
1990/0511		goto Bad; } if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-4*BY2WD))
1990/0515		validaddr(sp, 4*BY2WD, 0);
1990/11211		if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-5*BY2WD)) validaddr(sp, 5*BY2WD, 0);
1990/0515		ret = (*systab[r0])((ulong*)(sp+BY2WD));
1990/0511		}
1990/03091		u->nerrlab = 0;
1990/1110/sys/src/9/gnot/trap.c:296,314 – 1990/11211/sys/src/9/gnot/trap.c:296,317
1990/03091		return ret; }
1990/11211		#include "errstr.h"
1990/03091		void error(Chan *c, int code)
1990/11211		error(int code)
1990/03091		{ 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;
1990/11211		strncpy(u->error, errstrtab[code], NAMELEN);
1990/03091		nexterror(); }
1990/11211		void errors(char *err) { strncpy(u->error, err, NAMELEN); nexterror(); }
1990/03091		void nexterror(void)
1990/11211/sys/src/9/gnot/trap.c:91,100 – 1990/1127/sys/src/9/gnot/trap.c:91,100 (short | long)
1990/03091		if(u) u->p->pc = ur->pc; /* BUG */ if(user){
1990/1110		sprint(buf, "sys: trap: %s", ur->pc, excname(ur->vo));
1990/1127		sprint(buf, "sys: trap: pc=0x%lux %s", ur->pc, excname(ur->vo));
1990/03091		postnote(u->p, 1, buf, NDebug); }else{
1990/0905		print("kernel trap vo=0x%ux pc=%lux\n", ur->vo, ur->pc);
1990/1127		print("kernel trap vo=0x%ux pc=0x%lux\n", ur->vo, ur->pc);
1990/03091		dumpregs(ur); exit(); }
1990/1127/sys/src/9/gnot/trap.c:296,301 – 1990/1226/sys/src/9/gnot/trap.c:296,307 (short | long)
1990/03091		return ret; }
1990/1226		void execpc(ulong entry) { ((Ureg*)UREGADDR)->pc = entry; }
1990/11211		#include "errstr.h"
1990/03091		void
1990/1226/sys/src/9/gnot/trap.c:307,313 – 1991/0115/sys/src/9/gnot/trap.c:307,313 (short | long)
1990/03091		void
1990/11211		error(int code)
1990/03091		{
1990/11211		strncpy(u->error, errstrtab[code], NAMELEN);
1991/0115		strncpy(u->error, errstrtab[code], ERRLEN);
1990/03091		nexterror(); }
1990/11211
1991/0115/sys/src/9/gnot/trap.c:159,167 – 1991/0318/sys/src/9/gnot/trap.c:159,167 (short | long)
1990/0816		sp = ur->usp;
1990/03091		sp -= sizeof(Ureg); u->ureg = (void*)sp; memcpy((Ureg*)sp, ur, sizeof(Ureg));
1991/0318		memmove((Ureg*)sp, ur, sizeof(Ureg));
1990/03091		sp -= ERRLEN; memcpy((char*)sp, u->note[0].msg, ERRLEN);
1991/0318		memmove((char*)sp, u->note[0].msg, ERRLEN);
1990/03091		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* */
1991/0115/sys/src/9/gnot/trap.c:170,176 – 1991/0318/sys/src/9/gnot/trap.c:170,176
1990/03091		ur->pc = (ulong)u->notify; u->notified = 1; u->nnote--; memcpy(&u->note[0], &u->note[1], u->nnote*sizeof(Note));
1991/0318		memmove(&u->note[0], &u->note[1], u->nnote*sizeof(Note));
1990/03091		} unlock(&u->p->debug); }
1991/0115/sys/src/9/gnot/trap.c:187,193 – 1991/0318/sys/src/9/gnot/trap.c:187,193
1990/0619		return; }
1990/03091		u->notified = 0; memcpy(*urp, u->ureg, sizeof(Ureg));
1991/0318		memmove(*urp, u->ureg, sizeof(Ureg));
1990/03091		unlock(&u->p->debug); splhi(); rfnote(urp);
1991/0318/sys/src/9/gnot/trap.c:314,320 – 1991/0322/sys/src/9/gnot/trap.c:314,320 (short | long)
1990/11211		void errors(char *err) { strncpy(u->error, err, NAMELEN);
1991/0322		strncpy(u->error, err, ERRLEN);
1990/11211		nexterror(); }
1991/0322/sys/src/9/gnot/trap.c:8,15 – 1991/0503/sys/src/9/gnot/trap.c:8,15 (short | long)
1990/0513		#include "errno.h"
1990/03091		void notify(Ureg*); void noted(Ureg**); void rfnote(Ureg**);
1991/0503		void noted(Ureg*); void rfnote(Ureg*);
1990/03091		char *regname[]={ "R0",
1991/0322/sys/src/9/gnot/trap.c:156,161 – 1991/0503/sys/src/9/gnot/trap.c:156,163
1990/03091		if(!u->notified){ if(!u->notify) goto Die;
1991/0503		u->svvo = ur->vo; u->svsr = ur->sr;
1990/0816		sp = ur->usp;
1990/03091		sp -= sizeof(Ureg); u->ureg = (void*)sp;
1991/0322/sys/src/9/gnot/trap.c:179,186 – 1991/0503/sys/src/9/gnot/trap.c:181,197
1990/03091		* Return user to state before notify() */ void noted(Ureg **urp)
1991/0503		noted(Ureg *ur)
1990/03091		{
1991/0503		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); }
1990/03091		lock(&u->p->debug);
1990/0619		if(!u->notified){ unlock(&u->p->debug);
1991/0322/sys/src/9/gnot/trap.c:187,196 – 1991/0503/sys/src/9/gnot/trap.c:198,207
1990/0619		return; }
1990/03091		u->notified = 0;
1991/0318		memmove(*urp, u->ureg, sizeof(Ureg));
1991/0503		memmove(ur, u->ureg, sizeof(Ureg));
1990/03091		unlock(&u->p->debug); splhi(); rfnote(urp);
1991/0503		rfnote(ur);
1990/03091		} #undef CHDIR /* BUG */
1991/0322/sys/src/9/gnot/trap.c:288,294 – 1991/0503/sys/src/9/gnot/trap.c:299,305
1990/03091		u->nerrlab = 0; u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */ noted(&aur); /* doesn't return */
1991/0503		noted(aur); /* doesn't return */
1990/03091		if(u->nnote){ ur->r0 = ret; notify(ur);
1991/0503/sys/src/9/gnot/trap.c:211,217 – 1991/0513/sys/src/9/gnot/trap.c:211,217 (short | long)
1990/11211		Syscall sysr1, sysfork, sysexec, sysgetpid, syssleep, sysexits, sysdeath, syswait;
1990/03091		Syscall sysopen, sysclose, sysread, syswrite, sysseek, syserrstr, sysaccess, sysstat, sysfstat;
1990/11211		Syscall sysdup, syschdir, sysforkpgrp, sysbind, sysmount, syspipe, syscreate; Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted;
1991/0513		Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted, sysalarm;
1990/03091		Syscall *systab[]={ sysr1,
1991/0503/sys/src/9/gnot/trap.c:220,226 – 1991/0513/sys/src/9/gnot/trap.c:220,226
1990/03091		syschdir, sysclose, sysdup,
1990/11211		sysdeath,
1991/0513		sysalarm,
1990/03091		sysexec, sysexits, sysfork,
1991/0513/sys/src/9/gnot/trap.c:250,255 – 1991/0614/sys/src/9/gnot/trap.c:250,256 (short | long)
1990/03091		long syscall(Ureg *aur) {
1991/0614		int i;
1990/03091		long ret; ulong sp; ulong r0;
1991/0513/sys/src/9/gnot/trap.c:292,302 – 1991/0614/sys/src/9/gnot/trap.c:293,309
1990/1110		msg = "sys: odd stack";
1990/0511		goto Bad; }
1990/11211		if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-5*BY2WD)) validaddr(sp, 5*BY2WD, 0);
1991/0614		if(sp<(USTKTOP-BY2PG) || sp>(USTKTOP-(1+MAXSYSARG)*BY2WD)) validaddr(sp, (1+MAXSYSARG)*BY2WD, 0);
1990/0515		ret = (*systab[r0])((ulong*)(sp+BY2WD));
1991/0614		poperror();
1990/0511		}
1990/03091		u->nerrlab = 0;
1991/0614		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"); }
1990/03091		u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */
1991/0503		noted(aur); /* doesn't return */
1991/0614/sys/src/9/gnot/trap.c:91,97 – 1991/0705/sys/src/9/gnot/trap.c:91,97 (short | long)
1990/03091		if(u) u->p->pc = ur->pc; /* BUG */ if(user){
1990/1127		sprint(buf, "sys: trap: pc=0x%lux %s", ur->pc, excname(ur->vo));
1991/0705		sprint(buf, "sys: %s pc=0x%lux", excname(ur->vo), ur->pc);
1990/03091		postnote(u->p, 1, buf, NDebug); }else{
1990/1127		print("kernel trap vo=0x%ux pc=0x%lux\n", ur->vo, ur->pc);
1991/0614/sys/src/9/gnot/trap.c:98,103 – 1991/0705/sys/src/9/gnot/trap.c:98,104
1990/03091		dumpregs(ur); exit(); }
1991/0705
1990/03091		if(user && u->nnote) notify(ur); }
1991/0614/sys/src/9/gnot/trap.c:130,135 – 1991/0705/sys/src/9/gnot/trap.c:131,137
1990/03091		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]);
1991/0705		for(;;);
1990/03091		dumpstack(); }
1991/0614/sys/src/9/gnot/trap.c:212,217 – 1991/0705/sys/src/9/gnot/trap.c:214,220
1990/03091		Syscall sysopen, sysclose, sysread, syswrite, sysseek, syserrstr, sysaccess, sysstat, sysfstat;
1990/11211		Syscall sysdup, syschdir, sysforkpgrp, sysbind, sysmount, syspipe, syscreate;
1991/0513		Syscall sysbrk_, sysremove, syswstat, sysfwstat, sysnotify, sysnoted, sysalarm;
1991/0705		Syscall syssegattach, syssegdetach, syssegfree, syssegflush, syssegbrk;
1990/03091		Syscall *systab[]={ sysr1,
1991/0614/sys/src/9/gnot/trap.c:226,232 – 1991/0705/sys/src/9/gnot/trap.c:229,235
1990/03091		sysfork, sysforkpgrp, sysfstat,
1990/11211		sysdeath,
1991/0705		syssegbrk,
1990/03091		sysmount, sysopen, sysread,
1991/0614/sys/src/9/gnot/trap.c:244,250 – 1991/0705/sys/src/9/gnot/trap.c:247,256
1990/03091		sysfwstat,
1990/08141		sysnotify, sysnoted,
1990/11211		sysdeath, /* sysfilsys */
1991/0705		syssegattach, syssegdetach, syssegfree, syssegflush,
1990/03091		}; long
1991/0614/sys/src/9/gnot/trap.c:289,295 – 1991/0705/sys/src/9/gnot/trap.c:295,302
1990/11211		error(Ebadarg);
1990/0511		} if(sp & (BY2WD-1)){ pprint("odd sp in sys call pc %lux sp %lux\n", ((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp);
1991/0705		pprint("odd sp in sys call pc %lux sp %lux\n", ((Ureg*)UREGADDR)->pc, ((Ureg*)UREGADDR)->sp);
1990/1110		msg = "sys: odd stack";
1990/0511		goto Bad; }
1991/0614/sys/src/9/gnot/trap.c:298,311 – 1991/0705/sys/src/9/gnot/trap.c:305,323
1990/0515		ret = (*systab[r0])((ulong*)(sp+BY2WD));
1991/0614		poperror();
1990/0511		}
1991/0705		#ifdef Check
1991/0614		if(u->nerrlab){ print("unbalanced error stack: %d extra\n", u->nerrlab);
1991/0705		print("bad errstack [%d]: %d extra\n", r0, u->nerrlab);
1991/0614		for(i = 0; i < NERR; i++) print("sp=%lux pc=%lux\n", u->errlab[i].sp, u->errlab[i].pc); panic("bad rob"); }
1991/0705		#endif
1990/03091		u->p->insyscall = 0; if(r0 == NOTED) /* ugly hack */
1991/0705		if(r0 == NOTED) /* ugly hack */
1991/0503		noted(aur); /* doesn't return */
1990/03091		if(u->nnote){ ur->r0 = ret;
1991/0705/sys/src/9/gnot/trap.c:306,319 – 1991/0709/sys/src/9/gnot/trap.c:306,317 (short | long)
1991/0614		poperror();
1990/0511		}
1991/0705		#ifdef Check
1991/0614		if(u->nerrlab){
1991/0705		print("bad errstack [%d]: %d extra\n", r0, u->nerrlab);
1991/0614		for(i = 0; i < NERR; i++) print("sp=%lux pc=%lux\n", u->errlab[i].sp, u->errlab[i].pc); panic("bad rob");
1991/0709		panic("error stack");
1991/0614		}
1991/0705		#endif
1990/03091		u->p->insyscall = 0;
1991/0705
Too many diffs (26 > 25). Stopping.