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Update to ipkdb register handling, from Wolfgang Solfrank.

This commit is contained in:
thorpej 1997-04-16 22:12:42 +00:00
parent d667b1f2d0
commit d2798d376c
1 changed files with 21 additions and 8 deletions
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29
sys/arch/powerpc/powerpc/ipkdb_glue.c
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@ -1,4 +1,4 @@
/* $NetBSD: ipkdb_glue.c,v 1.1 1996/10/17 12:09:05 ws Exp $ */ /* $NetBSD: ipkdb_glue.c,v 1.2 1997/04/16 22:12:42 thorpej Exp $ */
/* /*
* Copyright (C) 1995, 1996 Wolfgang Solfrank. * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@ -71,23 +71,36 @@ ipkdb_trap_glue(frame)
&& (frame->srr1 & 0x20000)) && (frame->srr1 & 0x20000))
|| frame->exc == EXC_BPT)) { || frame->exc == EXC_BPT)) {
#ifdef IPKDBUSERHACK #ifdef IPKDBUSERHACK
asm ("mfsr %0,%1" : "=r"(savesr) : "K"(USER_SR)); /* see above XXX */ /* XXX see above */
asm ("mfsr %0,%1" : "=r"(savesr) : "n"(USER_SR));
#endif #endif
ipkdbcopy(frame, ipkdbregs, sizeof ipkdbregs); ipkdbzero(ipkdbregs, sizeof ipkdbregs);
ipkdbregs[MSR] &= ~PSL_BE; ipkdbcopy(frame->fixreg, &ipkdbregs[FIX], NFIX * sizeof(int));
ipkdbregs[PC] = frame->srr0;
ipkdbregs[PS] = frame->srr1 & ~PSL_BE;
ipkdbregs[CR] = frame->cr;
ipkdbregs[LR] = frame->lr;
ipkdbregs[CTR] = frame->ctr;
ipkdbregs[XER] = frame->xer;
switch (ipkdbcmds()) { switch (ipkdbcmds()) {
case 2: case 2:
case 0: case 0:
ipkdbregs[MSR] &= ~PSL_SE; ipkdbregs[PS] &= ~PSL_SE;
break; break;
case 1: case 1:
ipkdbregs[MSR] |= PSL_SE; ipkdbregs[PS] |= PSL_SE;
break; break;
} }
ipkdbcopy(ipkdbregs, frame, sizeof ipkdbregs); ipkdbcopy(&ipkdbregs[FIX], frame->fixreg, NFIX * sizeof(int));
frame->srr0 = ipkdbregs[PC];
frame->srr1 = ipkdbregs[PS];
frame->cr = ipkdbregs[CR];
frame->lr = ipkdbregs[LR];
frame->ctr = ipkdbregs[CTR];
frame->xer = ipkdbregs[XER];
#ifdef IPKDBUSERHACK #ifdef IPKDBUSERHACK
asm ("mtsr %0,%1; isync" :: "K"(USER_SR), "r"(savesr)); asm ("mtsr %0,%1; isync" :: "n"(USER_SR), "r"(savesr));
#endif #endif
return 1; return 1;
} }