1991/0722/pc/trap.c (diff list | history)

1991/0722/sys/src/9/pc/trap.c:223,230 – 1991/0723/sys/src/9/pc/trap.c:223,228 (short | long | prev | next)
1991/0720		ulong sp; long ret; int i; static int times; ulong *z;
1991/0718		u->p->insyscall = 1; u->p->pc = ur->pc;
1991/0722/sys/src/9/pc/trap.c:240,250 – 1991/0723/sys/src/9/pc/trap.c:238,243
1991/0720		sp = ur->usp; u->nerrlab = 0; ret = -1; z = (ulong *)sp; print("syscall %lux %lux %lux %lux\n", *z, *(z+1), *(z+2), *(z+3)); dumpregs(ur); if(++times==3) panic("3rd time in syscall"); if(!waserror()){ if(ax >= sizeof systab/BY2WD){ pprint("bad sys call number %d pc %lux\n", ax, ur->pc);
1991/0722/sys/src/9/pc/trap.c:256,262 – 1991/0723/sys/src/9/pc/trap.c:249,254
1991/0720		ret = (*systab[ax])((ulong*)(sp+BY2WD)); poperror(); } print("return from syscall\n"); if(u->nerrlab){ print("bad errstack [%d]: %d extra\n", ax, u->nerrlab); for(i = 0; i < NERR; i++)