Add prototypes for most functions. Fix typo where statements
intended to increment interrupt counters for vmstat -i (i.e., "ctr++") on 3100s had just a single "+", and hence had no effect.
This commit is contained in:
jonathan
parent
de3db4cb57
commit
6a99440efd
@ -1,4 +1,4 @@
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/* $NetBSD: trap.c,v 1.21 1995/07/23 20:21:17 jonathan Exp $ */
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/* $NetBSD: trap.c,v 1.22 1995/08/01 06:58:57 jonathan Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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@ -87,15 +87,17 @@
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struct proc *machFPCurProcPtr; /* pointer to last proc to use FP */
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extern void MachKernGenException();
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extern void MachUserGenException();
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extern void MachKernIntr();
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extern void MachUserIntr();
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extern void MachTLBModException();
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extern void MachTLBMissException();
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extern unsigned MachEmulateBranch();
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/*
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* Exception-handling functions, called via machExceptionTable from locore
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*/
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extern void MachKernGenException __P((void));
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extern void MachUserGenException __P((void));
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extern void MachKernIntr __P((void));
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extern void MachUserIntr __P((void));
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extern void MachTLBModException __P((void));
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extern void MachTLBMissException __P((void));
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void (*machExceptionTable[])() = {
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void (*machExceptionTable[]) __P((void)) = {
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/*
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* The kernel exception handlers.
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*/
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@ -166,24 +168,45 @@ struct trapdebug { /* trap history buffer for debugging */
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u_int code;
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} trapdebug[TRAPSIZE], *trp = trapdebug;
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void trapDump __P((char * msg));
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void cpu_getregs __P((int *regs));
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#endif /* DEBUG */
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/* extern functions used but not declared elsewhere */
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extern void MachFPInterrupt __P((u_int status, u_int cause, u_int pc));
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extern void clearsoftclock __P((void));
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extern void clearsoftnet __P((void));
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extern void splx __P((int));
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extern int splhigh __P((void));
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extern void MachTLBUpdate __P((u_int, u_int));
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extern void MachSwitchFPState __P((struct proc *from, struct user *to));
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/* only called by locore */
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extern u_int trap __P((u_int status, u_int cause, u_int vaddr, u_int pc,
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int args));
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/* (called by locore and kadb */
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extern u_int MachEmulateBranch __P((u_int*, u_int, u_int, int));
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#ifdef DEBUG /* stack trace code, also useful to DDB one day */
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extern void stacktrace();
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extern void logstacktrace();
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extern void stacktrace __P(()); /*XXX*/
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extern void logstacktrace __P(()); /*XXX*/
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/* extern functions printed by name in stack backtraces */
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extern void idle(), cpu_switch(), splx(), MachEmptyWriteBuffer();
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extern void MachUTLBMiss();
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extern void idle __P((void)), cpu_switch __P(( struct proc *p));
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extern void MachEmptyWriteBuffer __P((void));
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extern void MachUTLBMiss __P((void));
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extern void setsoftclock __P((void));
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#endif /* DEBUG */
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static void pmax_errintr();
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static void kn02_errintr(), kn02ba_errintr();
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static void pmax_errintr __P((void));
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static void kn02_errintr __P((void)), kn02ba_errintr __P((void));
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#ifdef DS5000_240
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static void kn03_errintr();
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static void kn03_errintr __P ((void));
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extern u_long kn03_tc3_imask;
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/*
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@ -197,11 +220,15 @@ u_long latched_cycle_cnt; /*
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*/
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#endif /*DS5000_240*/
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static unsigned kn02ba_recover_erradr();
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static unsigned kn02ba_recover_erradr __P((u_int phys, u_int mer));
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extern tc_option_t tc_slot_info[TC_MAX_LOGICAL_SLOTS];
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extern u_long kmin_tc3_imask, xine_tc3_imask;
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extern const struct callback *callv;
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int (*pmax_hardware_intr)() = (int (*)())0;
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int (*pmax_hardware_intr) __P((u_int mask, u_int pc, u_int status,
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u_int cause)) =
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( int (*) __P((u_int, u_int, u_int, u_int)) ) 0;
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extern volatile struct chiptime *Mach_clock_addr;
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extern u_long intrcnt[];
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extern u_long kernelfaults;
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@ -214,7 +241,7 @@ u_long kernelfaults = 0;
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* In the case of a kernel trap, we return the pc where to resume if
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* ((struct pcb *)UADDR)->pcb_onfault is set, otherwise, return old pc.
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*/
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unsigned
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u_int
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trap(statusReg, causeReg, vadr, pc, args)
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unsigned statusReg; /* status register at time of the exception */
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unsigned causeReg; /* cause register at time of exception */
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@ -666,7 +693,8 @@ trap(statusReg, causeReg, vadr, pc, args)
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i = SIGILL; /* only FPU instructions allowed */
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break;
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}
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MachSwitchFPState(machFPCurProcPtr, p->p_md.md_regs);
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MachSwitchFPState(machFPCurProcPtr,
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(struct user*)p->p_md.md_regs);
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machFPCurProcPtr = p;
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p->p_md.md_regs[PS] |= MACH_SR_COP_1_BIT;
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p->p_md.md_flags |= MDP_FPUSED;
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@ -781,6 +809,7 @@ out:
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* Called from MachKernIntr() or MachUserIntr()
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* Note: curproc might be NULL.
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*/
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void
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interrupt(statusReg, causeReg, pc)
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unsigned statusReg; /* status register at time of the exception */
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unsigned causeReg; /* cause register at time of exception */
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@ -865,6 +894,7 @@ interrupt(statusReg, causeReg, pc)
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/*
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* Handle pmax (DECstation 2100/3100) interrupts.
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*/
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int
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pmax_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -902,12 +932,12 @@ pmax_intr(mask, pc, statusReg, causeReg)
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#endif
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#if NDC > 0
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if (mask & MACH_INT_MASK_2) {
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intrcnt[4];
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intrcnt[4]++;
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dcintr(0);
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}
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#endif
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if (mask & MACH_INT_MASK_4) {
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intrcnt[5];
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intrcnt[5]++;
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pmax_errintr();
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}
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return ((statusReg & ~causeReg & MACH_HARD_INT_MASK) |
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@ -918,6 +948,7 @@ pmax_intr(mask, pc, statusReg, causeReg)
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* Handle hardware interrupts for the KN02. (DECstation 5000/200)
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* Returns spl value.
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*/
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int
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kn02_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -989,6 +1020,7 @@ kn02_intr(mask, pc, statusReg, causeReg)
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/*
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* 3min hardware interrupts. (DECstation 5000/1xx)
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*/
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int
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kmin_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -1082,6 +1114,7 @@ kmin_intr(mask, pc, statusReg, causeReg)
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/*
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* Maxine hardware interrupts. (Personal DECstation 5000/xx)
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*/
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int
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xine_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -1207,6 +1240,7 @@ xine_intr(mask, pc, statusReg, causeReg)
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/*
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* 3Max+ hardware interrupts. (DECstation 5000/240) UNTESTED!!
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*/
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int
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kn03_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -1341,6 +1375,7 @@ kn03_intr(mask, pc, statusReg, causeReg)
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* This is called from MachUserIntr() if astpending is set.
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* This is very similar to the tail of trap().
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*/
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void
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softintr(statusReg, pc)
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unsigned statusReg; /* status register at time of the exception */
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unsigned pc; /* program counter where to continue */
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@ -1381,6 +1416,7 @@ softintr(statusReg, pc)
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}
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#ifdef DEBUG
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void
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trapDump(msg)
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char *msg;
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{
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@ -1536,10 +1572,16 @@ kn02ba_recover_erradr(phys, mer)
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return ((phys & KMIN_AER_ADDR_MASK) | mer);
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}
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/*
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* forward declaration
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*/
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static unsigned GetBranchDest __P((InstFmt *InstPtr));
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/*
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* Return the resulting PC as if the branch was executed.
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*/
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unsigned
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u_int
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MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
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unsigned *regsPtr;
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unsigned instPC;
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@ -1549,9 +1591,6 @@ MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
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InstFmt inst;
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unsigned retAddr;
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int condition;
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extern unsigned GetBranchDest();
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inst = *(InstFmt *)instPC;
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#if 0
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printf("regsPtr=%x PC=%x Inst=%x fpcCsr=%x\n", regsPtr, instPC,
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@ -1662,18 +1701,21 @@ MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
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return (retAddr);
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}
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unsigned
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static unsigned
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GetBranchDest(InstPtr)
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InstFmt *InstPtr;
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{
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return ((unsigned)InstPtr + 4 + ((short)InstPtr->IType.imm << 2));
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}
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#ifdef DEBUG
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/*
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* This routine is called by procxmt() to single step one instruction.
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* We do this by storing a break instruction after the current instruction,
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* resuming execution, and then restoring the old instruction.
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*/
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int
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cpu_singlestep(p)
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register struct proc *p;
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{
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@ -1716,7 +1758,7 @@ cpu_singlestep(p)
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return (0);
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}
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#ifdef DEBUG
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int
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kdbpeek(addr)
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{
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if (addr & 3) {
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@ -1761,7 +1803,6 @@ stacktrace_subr(a0, a1, a2, a3, printfn)
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InstFmt i;
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int more, stksize;
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int regs[3];
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extern setsoftclock();
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extern char start[], edata[];
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unsigned int frames = 0;
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@ -1,4 +1,4 @@
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/* $NetBSD: pmax_trap.c,v 1.21 1995/07/23 20:21:17 jonathan Exp $ */
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/* $NetBSD: pmax_trap.c,v 1.22 1995/08/01 06:58:57 jonathan Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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@ -87,15 +87,17 @@
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struct proc *machFPCurProcPtr; /* pointer to last proc to use FP */
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extern void MachKernGenException();
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extern void MachUserGenException();
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extern void MachKernIntr();
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extern void MachUserIntr();
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extern void MachTLBModException();
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extern void MachTLBMissException();
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extern unsigned MachEmulateBranch();
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/*
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* Exception-handling functions, called via machExceptionTable from locore
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*/
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extern void MachKernGenException __P((void));
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extern void MachUserGenException __P((void));
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extern void MachKernIntr __P((void));
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extern void MachUserIntr __P((void));
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extern void MachTLBModException __P((void));
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extern void MachTLBMissException __P((void));
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void (*machExceptionTable[])() = {
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void (*machExceptionTable[]) __P((void)) = {
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/*
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* The kernel exception handlers.
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*/
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@ -166,24 +168,45 @@ struct trapdebug { /* trap history buffer for debugging */
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u_int code;
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} trapdebug[TRAPSIZE], *trp = trapdebug;
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void trapDump __P((char * msg));
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void cpu_getregs __P((int *regs));
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#endif /* DEBUG */
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/* extern functions used but not declared elsewhere */
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extern void MachFPInterrupt __P((u_int status, u_int cause, u_int pc));
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extern void clearsoftclock __P((void));
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extern void clearsoftnet __P((void));
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extern void splx __P((int));
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extern int splhigh __P((void));
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extern void MachTLBUpdate __P((u_int, u_int));
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extern void MachSwitchFPState __P((struct proc *from, struct user *to));
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/* only called by locore */
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extern u_int trap __P((u_int status, u_int cause, u_int vaddr, u_int pc,
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int args));
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/* (called by locore and kadb */
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extern u_int MachEmulateBranch __P((u_int*, u_int, u_int, int));
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#ifdef DEBUG /* stack trace code, also useful to DDB one day */
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extern void stacktrace();
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extern void logstacktrace();
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extern void stacktrace __P(()); /*XXX*/
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extern void logstacktrace __P(()); /*XXX*/
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/* extern functions printed by name in stack backtraces */
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extern void idle(), cpu_switch(), splx(), MachEmptyWriteBuffer();
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extern void MachUTLBMiss();
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extern void idle __P((void)), cpu_switch __P(( struct proc *p));
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extern void MachEmptyWriteBuffer __P((void));
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extern void MachUTLBMiss __P((void));
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extern void setsoftclock __P((void));
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#endif /* DEBUG */
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static void pmax_errintr();
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static void kn02_errintr(), kn02ba_errintr();
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static void pmax_errintr __P((void));
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static void kn02_errintr __P((void)), kn02ba_errintr __P((void));
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#ifdef DS5000_240
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static void kn03_errintr();
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static void kn03_errintr __P ((void));
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extern u_long kn03_tc3_imask;
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/*
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@ -197,11 +220,15 @@ u_long latched_cycle_cnt; /*
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*/
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#endif /*DS5000_240*/
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static unsigned kn02ba_recover_erradr();
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static unsigned kn02ba_recover_erradr __P((u_int phys, u_int mer));
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extern tc_option_t tc_slot_info[TC_MAX_LOGICAL_SLOTS];
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extern u_long kmin_tc3_imask, xine_tc3_imask;
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extern const struct callback *callv;
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int (*pmax_hardware_intr)() = (int (*)())0;
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int (*pmax_hardware_intr) __P((u_int mask, u_int pc, u_int status,
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u_int cause)) =
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( int (*) __P((u_int, u_int, u_int, u_int)) ) 0;
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extern volatile struct chiptime *Mach_clock_addr;
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extern u_long intrcnt[];
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extern u_long kernelfaults;
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@ -214,7 +241,7 @@ u_long kernelfaults = 0;
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* In the case of a kernel trap, we return the pc where to resume if
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* ((struct pcb *)UADDR)->pcb_onfault is set, otherwise, return old pc.
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*/
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unsigned
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u_int
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trap(statusReg, causeReg, vadr, pc, args)
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unsigned statusReg; /* status register at time of the exception */
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unsigned causeReg; /* cause register at time of exception */
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@ -666,7 +693,8 @@ trap(statusReg, causeReg, vadr, pc, args)
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i = SIGILL; /* only FPU instructions allowed */
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break;
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}
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MachSwitchFPState(machFPCurProcPtr, p->p_md.md_regs);
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MachSwitchFPState(machFPCurProcPtr,
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(struct user*)p->p_md.md_regs);
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machFPCurProcPtr = p;
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p->p_md.md_regs[PS] |= MACH_SR_COP_1_BIT;
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p->p_md.md_flags |= MDP_FPUSED;
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@ -781,6 +809,7 @@ out:
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* Called from MachKernIntr() or MachUserIntr()
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* Note: curproc might be NULL.
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*/
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void
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interrupt(statusReg, causeReg, pc)
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unsigned statusReg; /* status register at time of the exception */
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unsigned causeReg; /* cause register at time of exception */
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@ -865,6 +894,7 @@ interrupt(statusReg, causeReg, pc)
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/*
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* Handle pmax (DECstation 2100/3100) interrupts.
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*/
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int
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pmax_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -902,12 +932,12 @@ pmax_intr(mask, pc, statusReg, causeReg)
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#endif
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#if NDC > 0
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if (mask & MACH_INT_MASK_2) {
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intrcnt[4];
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intrcnt[4]++;
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dcintr(0);
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}
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#endif
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if (mask & MACH_INT_MASK_4) {
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intrcnt[5];
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intrcnt[5]++;
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pmax_errintr();
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}
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return ((statusReg & ~causeReg & MACH_HARD_INT_MASK) |
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@ -918,6 +948,7 @@ pmax_intr(mask, pc, statusReg, causeReg)
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* Handle hardware interrupts for the KN02. (DECstation 5000/200)
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* Returns spl value.
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*/
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int
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kn02_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -989,6 +1020,7 @@ kn02_intr(mask, pc, statusReg, causeReg)
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/*
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* 3min hardware interrupts. (DECstation 5000/1xx)
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*/
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int
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kmin_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -1082,6 +1114,7 @@ kmin_intr(mask, pc, statusReg, causeReg)
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/*
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* Maxine hardware interrupts. (Personal DECstation 5000/xx)
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*/
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int
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xine_intr(mask, pc, statusReg, causeReg)
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unsigned mask;
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unsigned pc;
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@ -1207,6 +1240,7 @@ xine_intr(mask, pc, statusReg, causeReg)
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/*
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* 3Max+ hardware interrupts. (DECstation 5000/240) UNTESTED!!
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*/
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int
|
||||
kn03_intr(mask, pc, statusReg, causeReg)
|
||||
unsigned mask;
|
||||
unsigned pc;
|
||||
@ -1341,6 +1375,7 @@ kn03_intr(mask, pc, statusReg, causeReg)
|
||||
* This is called from MachUserIntr() if astpending is set.
|
||||
* This is very similar to the tail of trap().
|
||||
*/
|
||||
void
|
||||
softintr(statusReg, pc)
|
||||
unsigned statusReg; /* status register at time of the exception */
|
||||
unsigned pc; /* program counter where to continue */
|
||||
@ -1381,6 +1416,7 @@ softintr(statusReg, pc)
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
void
|
||||
trapDump(msg)
|
||||
char *msg;
|
||||
{
|
||||
@ -1536,10 +1572,16 @@ kn02ba_recover_erradr(phys, mer)
|
||||
return ((phys & KMIN_AER_ADDR_MASK) | mer);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* forward declaration
|
||||
*/
|
||||
static unsigned GetBranchDest __P((InstFmt *InstPtr));
|
||||
|
||||
/*
|
||||
* Return the resulting PC as if the branch was executed.
|
||||
*/
|
||||
unsigned
|
||||
u_int
|
||||
MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
|
||||
unsigned *regsPtr;
|
||||
unsigned instPC;
|
||||
@ -1549,9 +1591,6 @@ MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
|
||||
InstFmt inst;
|
||||
unsigned retAddr;
|
||||
int condition;
|
||||
extern unsigned GetBranchDest();
|
||||
|
||||
|
||||
inst = *(InstFmt *)instPC;
|
||||
#if 0
|
||||
printf("regsPtr=%x PC=%x Inst=%x fpcCsr=%x\n", regsPtr, instPC,
|
||||
@ -1662,18 +1701,21 @@ MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
|
||||
return (retAddr);
|
||||
}
|
||||
|
||||
unsigned
|
||||
static unsigned
|
||||
GetBranchDest(InstPtr)
|
||||
InstFmt *InstPtr;
|
||||
{
|
||||
return ((unsigned)InstPtr + 4 + ((short)InstPtr->IType.imm << 2));
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
|
||||
/*
|
||||
* This routine is called by procxmt() to single step one instruction.
|
||||
* We do this by storing a break instruction after the current instruction,
|
||||
* resuming execution, and then restoring the old instruction.
|
||||
*/
|
||||
int
|
||||
cpu_singlestep(p)
|
||||
register struct proc *p;
|
||||
{
|
||||
@ -1716,7 +1758,7 @@ cpu_singlestep(p)
|
||||
return (0);
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
int
|
||||
kdbpeek(addr)
|
||||
{
|
||||
if (addr & 3) {
|
||||
@ -1761,7 +1803,6 @@ stacktrace_subr(a0, a1, a2, a3, printfn)
|
||||
InstFmt i;
|
||||
int more, stksize;
|
||||
int regs[3];
|
||||
extern setsoftclock();
|
||||
extern char start[], edata[];
|
||||
unsigned int frames = 0;
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: trap.c,v 1.21 1995/07/23 20:21:17 jonathan Exp $ */
|
||||
/* $NetBSD: trap.c,v 1.22 1995/08/01 06:58:57 jonathan Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1988 University of Utah.
|
||||
@ -87,15 +87,17 @@
|
||||
|
||||
struct proc *machFPCurProcPtr; /* pointer to last proc to use FP */
|
||||
|
||||
extern void MachKernGenException();
|
||||
extern void MachUserGenException();
|
||||
extern void MachKernIntr();
|
||||
extern void MachUserIntr();
|
||||
extern void MachTLBModException();
|
||||
extern void MachTLBMissException();
|
||||
extern unsigned MachEmulateBranch();
|
||||
/*
|
||||
* Exception-handling functions, called via machExceptionTable from locore
|
||||
*/
|
||||
extern void MachKernGenException __P((void));
|
||||
extern void MachUserGenException __P((void));
|
||||
extern void MachKernIntr __P((void));
|
||||
extern void MachUserIntr __P((void));
|
||||
extern void MachTLBModException __P((void));
|
||||
extern void MachTLBMissException __P((void));
|
||||
|
||||
void (*machExceptionTable[])() = {
|
||||
void (*machExceptionTable[]) __P((void)) = {
|
||||
/*
|
||||
* The kernel exception handlers.
|
||||
*/
|
||||
@ -166,24 +168,45 @@ struct trapdebug { /* trap history buffer for debugging */
|
||||
u_int code;
|
||||
} trapdebug[TRAPSIZE], *trp = trapdebug;
|
||||
|
||||
void trapDump __P((char * msg));
|
||||
void cpu_getregs __P((int *regs));
|
||||
#endif /* DEBUG */
|
||||
|
||||
|
||||
/* extern functions used but not declared elsewhere */
|
||||
extern void MachFPInterrupt __P((u_int status, u_int cause, u_int pc));
|
||||
extern void clearsoftclock __P((void));
|
||||
extern void clearsoftnet __P((void));
|
||||
extern void splx __P((int));
|
||||
extern int splhigh __P((void));
|
||||
extern void MachTLBUpdate __P((u_int, u_int));
|
||||
extern void MachSwitchFPState __P((struct proc *from, struct user *to));
|
||||
|
||||
/* only called by locore */
|
||||
extern u_int trap __P((u_int status, u_int cause, u_int vaddr, u_int pc,
|
||||
int args));
|
||||
/* (called by locore and kadb */
|
||||
extern u_int MachEmulateBranch __P((u_int*, u_int, u_int, int));
|
||||
|
||||
|
||||
#ifdef DEBUG /* stack trace code, also useful to DDB one day */
|
||||
extern void stacktrace();
|
||||
extern void logstacktrace();
|
||||
extern void stacktrace __P(()); /*XXX*/
|
||||
extern void logstacktrace __P(()); /*XXX*/
|
||||
|
||||
/* extern functions printed by name in stack backtraces */
|
||||
extern void idle(), cpu_switch(), splx(), MachEmptyWriteBuffer();
|
||||
extern void MachUTLBMiss();
|
||||
extern void idle __P((void)), cpu_switch __P(( struct proc *p));
|
||||
extern void MachEmptyWriteBuffer __P((void));
|
||||
extern void MachUTLBMiss __P((void));
|
||||
extern void setsoftclock __P((void));
|
||||
#endif /* DEBUG */
|
||||
|
||||
|
||||
static void pmax_errintr();
|
||||
static void kn02_errintr(), kn02ba_errintr();
|
||||
|
||||
static void pmax_errintr __P((void));
|
||||
static void kn02_errintr __P((void)), kn02ba_errintr __P((void));
|
||||
|
||||
#ifdef DS5000_240
|
||||
static void kn03_errintr();
|
||||
static void kn03_errintr __P ((void));
|
||||
extern u_long kn03_tc3_imask;
|
||||
|
||||
/*
|
||||
@ -197,11 +220,15 @@ u_long latched_cycle_cnt; /*
|
||||
*/
|
||||
#endif /*DS5000_240*/
|
||||
|
||||
static unsigned kn02ba_recover_erradr();
|
||||
static unsigned kn02ba_recover_erradr __P((u_int phys, u_int mer));
|
||||
extern tc_option_t tc_slot_info[TC_MAX_LOGICAL_SLOTS];
|
||||
extern u_long kmin_tc3_imask, xine_tc3_imask;
|
||||
extern const struct callback *callv;
|
||||
int (*pmax_hardware_intr)() = (int (*)())0;
|
||||
|
||||
int (*pmax_hardware_intr) __P((u_int mask, u_int pc, u_int status,
|
||||
u_int cause)) =
|
||||
( int (*) __P((u_int, u_int, u_int, u_int)) ) 0;
|
||||
|
||||
extern volatile struct chiptime *Mach_clock_addr;
|
||||
extern u_long intrcnt[];
|
||||
extern u_long kernelfaults;
|
||||
@ -214,7 +241,7 @@ u_long kernelfaults = 0;
|
||||
* In the case of a kernel trap, we return the pc where to resume if
|
||||
* ((struct pcb *)UADDR)->pcb_onfault is set, otherwise, return old pc.
|
||||
*/
|
||||
unsigned
|
||||
u_int
|
||||
trap(statusReg, causeReg, vadr, pc, args)
|
||||
unsigned statusReg; /* status register at time of the exception */
|
||||
unsigned causeReg; /* cause register at time of exception */
|
||||
@ -666,7 +693,8 @@ trap(statusReg, causeReg, vadr, pc, args)
|
||||
i = SIGILL; /* only FPU instructions allowed */
|
||||
break;
|
||||
}
|
||||
MachSwitchFPState(machFPCurProcPtr, p->p_md.md_regs);
|
||||
MachSwitchFPState(machFPCurProcPtr,
|
||||
(struct user*)p->p_md.md_regs);
|
||||
machFPCurProcPtr = p;
|
||||
p->p_md.md_regs[PS] |= MACH_SR_COP_1_BIT;
|
||||
p->p_md.md_flags |= MDP_FPUSED;
|
||||
@ -781,6 +809,7 @@ out:
|
||||
* Called from MachKernIntr() or MachUserIntr()
|
||||
* Note: curproc might be NULL.
|
||||
*/
|
||||
void
|
||||
interrupt(statusReg, causeReg, pc)
|
||||
unsigned statusReg; /* status register at time of the exception */
|
||||
unsigned causeReg; /* cause register at time of exception */
|
||||
@ -865,6 +894,7 @@ interrupt(statusReg, causeReg, pc)
|
||||
/*
|
||||
* Handle pmax (DECstation 2100/3100) interrupts.
|
||||
*/
|
||||
int
|
||||
pmax_intr(mask, pc, statusReg, causeReg)
|
||||
unsigned mask;
|
||||
unsigned pc;
|
||||
@ -902,12 +932,12 @@ pmax_intr(mask, pc, statusReg, causeReg)
|
||||
#endif
|
||||
#if NDC > 0
|
||||
if (mask & MACH_INT_MASK_2) {
|
||||
intrcnt[4];
|
||||
intrcnt[4]++;
|
||||
dcintr(0);
|
||||
}
|
||||
#endif
|
||||
if (mask & MACH_INT_MASK_4) {
|
||||
intrcnt[5];
|
||||
intrcnt[5]++;
|
||||
pmax_errintr();
|
||||
}
|
||||
return ((statusReg & ~causeReg & MACH_HARD_INT_MASK) |
|
||||
@ -918,6 +948,7 @@ pmax_intr(mask, pc, statusReg, causeReg)
|
||||
* Handle hardware interrupts for the KN02. (DECstation 5000/200)
|
||||
* Returns spl value.
|
||||
*/
|
||||
int
|
||||
kn02_intr(mask, pc, statusReg, causeReg)
|
||||
unsigned mask;
|
||||
unsigned pc;
|
||||
@ -989,6 +1020,7 @@ kn02_intr(mask, pc, statusReg, causeReg)
|
||||
/*
|
||||
* 3min hardware interrupts. (DECstation 5000/1xx)
|
||||
*/
|
||||
int
|
||||
kmin_intr(mask, pc, statusReg, causeReg)
|
||||
unsigned mask;
|
||||
unsigned pc;
|
||||
@ -1082,6 +1114,7 @@ kmin_intr(mask, pc, statusReg, causeReg)
|
||||
/*
|
||||
* Maxine hardware interrupts. (Personal DECstation 5000/xx)
|
||||
*/
|
||||
int
|
||||
xine_intr(mask, pc, statusReg, causeReg)
|
||||
unsigned mask;
|
||||
unsigned pc;
|
||||
@ -1207,6 +1240,7 @@ xine_intr(mask, pc, statusReg, causeReg)
|
||||
/*
|
||||
* 3Max+ hardware interrupts. (DECstation 5000/240) UNTESTED!!
|
||||
*/
|
||||
int
|
||||
kn03_intr(mask, pc, statusReg, causeReg)
|
||||
unsigned mask;
|
||||
unsigned pc;
|
||||
@ -1341,6 +1375,7 @@ kn03_intr(mask, pc, statusReg, causeReg)
|
||||
* This is called from MachUserIntr() if astpending is set.
|
||||
* This is very similar to the tail of trap().
|
||||
*/
|
||||
void
|
||||
softintr(statusReg, pc)
|
||||
unsigned statusReg; /* status register at time of the exception */
|
||||
unsigned pc; /* program counter where to continue */
|
||||
@ -1381,6 +1416,7 @@ softintr(statusReg, pc)
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
void
|
||||
trapDump(msg)
|
||||
char *msg;
|
||||
{
|
||||
@ -1536,10 +1572,16 @@ kn02ba_recover_erradr(phys, mer)
|
||||
return ((phys & KMIN_AER_ADDR_MASK) | mer);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* forward declaration
|
||||
*/
|
||||
static unsigned GetBranchDest __P((InstFmt *InstPtr));
|
||||
|
||||
/*
|
||||
* Return the resulting PC as if the branch was executed.
|
||||
*/
|
||||
unsigned
|
||||
u_int
|
||||
MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
|
||||
unsigned *regsPtr;
|
||||
unsigned instPC;
|
||||
@ -1549,9 +1591,6 @@ MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
|
||||
InstFmt inst;
|
||||
unsigned retAddr;
|
||||
int condition;
|
||||
extern unsigned GetBranchDest();
|
||||
|
||||
|
||||
inst = *(InstFmt *)instPC;
|
||||
#if 0
|
||||
printf("regsPtr=%x PC=%x Inst=%x fpcCsr=%x\n", regsPtr, instPC,
|
||||
@ -1662,18 +1701,21 @@ MachEmulateBranch(regsPtr, instPC, fpcCSR, allowNonBranch)
|
||||
return (retAddr);
|
||||
}
|
||||
|
||||
unsigned
|
||||
static unsigned
|
||||
GetBranchDest(InstPtr)
|
||||
InstFmt *InstPtr;
|
||||
{
|
||||
return ((unsigned)InstPtr + 4 + ((short)InstPtr->IType.imm << 2));
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
|
||||
/*
|
||||
* This routine is called by procxmt() to single step one instruction.
|
||||
* We do this by storing a break instruction after the current instruction,
|
||||
* resuming execution, and then restoring the old instruction.
|
||||
*/
|
||||
int
|
||||
cpu_singlestep(p)
|
||||
register struct proc *p;
|
||||
{
|
||||
@ -1716,7 +1758,7 @@ cpu_singlestep(p)
|
||||
return (0);
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
int
|
||||
kdbpeek(addr)
|
||||
{
|
||||
if (addr & 3) {
|
||||
@ -1761,7 +1803,6 @@ stacktrace_subr(a0, a1, a2, a3, printfn)
|
||||
InstFmt i;
|
||||
int more, stksize;
|
||||
int regs[3];
|
||||
extern setsoftclock();
|
||||
extern char start[], edata[];
|
||||
unsigned int frames = 0;
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user