1991/1214/pc/trap.c (diff list | history)

1991/1114/sys/src/9/pc/trap.c:136,142 – 1991/1214/sys/src/9/pc/trap.c:136,142 (short | long | prev | next)
1991/0904		sethvec(39, intr39, SEGIG, 0);
1991/0703		/*
1991/0710		* system calls
1991/1214		* system calls and break points
1991/0710		*/
1991/0910		sethvec(Syscallvec, intr64, SEGTG, 3); setvec(Syscallvec, (void (*)(Ureg*))syscall);
1991/1114/sys/src/9/pc/trap.c:224,229 – 1991/1214/sys/src/9/pc/trap.c:224,231
1991/1113		} if(v>=256 || ivec[v] == 0){
1991/1214		if(v == 13) return;
1991/1113		if(v <= 16){ if(user){ sprint(buf, "sys: %s pc=0x%lux", excname[v], ur->pc);
1991/1114/sys/src/9/pc/trap.c:247,273 – 1991/1214/sys/src/9/pc/trap.c:249,254
1991/0806		} /* * print 8259 status */ void dump8259(void) { int c;                  outb(Int0ctl, 0x0a); /* read ir */ print("ir0 %lux\n", inb(Int0ctl)); outb(Int0ctl, 0x0b); /* read is */ print("is0 %lux\n", inb(Int0ctl)); print("im0 %lux\n", inb(Int0aux));                  outb(Int1ctl, 0x0a); /* read ir */ print("ir1 %lux\n", inb(Int1ctl)); outb(Int1ctl, 0x0b); /* read is */ print("is1 %lux\n", inb(Int1ctl)); print("im1 %lux\n", inb(Int1aux));
1991/0710		}                  /*
1991/0718		* dump registers */ void
1991/1114/sys/src/9/pc/trap.c:277,289 – 1991/1214/sys/src/9/pc/trap.c:258,275
1991/0718		print("registers for %s %d\n", u->p->text, u->p->pid); else print("registers for kernel\n"); print("FLAGS=%lux ECODE=%lux CS=%lux PC=%lux SS=%lux USP=%lux\n", ur->flags,
1991/0808		ur->ecode, ur->cs&0xff, ur->pc, ur->ss&0xff, ur->usp);
1991/0718
1991/1214		print("FLAGS=%lux ECODE=%lux CS=%lux PC=%lux", ur->flags, ur->ecode, ur->cs&0xff, ur->pc); if(ur == (Ureg*)UREGADDR) print(" SS=%lux USP=%lux\n", ur->ss&0xff, ur->usp); else print("\n");
1991/0718		print(" AX %8.8lux BX %8.8lux CX %8.8lux DX %8.8lux\n", ur->ax, ur->bx, ur->cx, ur->dx); print(" SI %8.8lux DI %8.8lux BP %8.8lux DS %8.8lux\n", ur->si, ur->di, ur->bp, ur->ds);
1991/1214		print(" SI %8.8lux DI %8.8lux BP %8.8lux\n", ur->si, ur->di, ur->bp); print(" DS %4.4ux ES %4.4ux FS %4.4ux GS %4.4ux\n", ur->ds&0xffff, ur->es&0xffff, ur->fs&0xffff, ur->gs&0xffff);
1991/0718		}
1991/0720		void
1991/1114/sys/src/9/pc/trap.c:291,300 – 1991/1214/sys/src/9/pc/trap.c:277,292
1991/0720		{ } void execpc(ulong entry)
1991/1214		long execregs(ulong entry, ulong ssize, ulong nargs)
1991/0720		{
1991/1214		ulong *sp; sp = (ulong*)(USTKTOP - ssize); *--sp = nargs; ((Ureg*)UREGADDR)->usp = (ulong)sp;
1991/0720		((Ureg*)UREGADDR)->pc = entry;
1991/1214		return USTKTOP-BY2WD; /* address of user-level clock */
1991/0720		}
1991/0718		/*
1991/1114/sys/src/9/pc/trap.c:312,318 – 1991/1214/sys/src/9/pc/trap.c:304,309
1991/0720
1991/0718		u->p->insyscall = 1; u->p->pc = ur->pc;
1991/1112		u->dbgreg = ur;
1991/0720		if((ur->cs)&0xffff == KESEL) panic("recursive system call");
1991/0718