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Fix kcopy fault-handler saving. 

Get kernel last address from boot instead.
This commit is contained in:
ragge 1998-11-26 21:21:06 +00:00
parent e3e5bd6220
commit 237ff74c36
1 changed files with 7 additions and 9 deletions
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16
sys/arch/vax/vax/subr.s
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@ -1,4 +1,4 @@
/* $NetBSD: subr.s,v 1.30 1998/11/05 19:46:18 ragge Exp $ */
/* $NetBSD: subr.s,v 1.31 1998/11/26 21:21:06 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
@ -50,18 +50,15 @@
ASENTRY(start, 0)
movl r11,_boothowto # Howto boot (single etc...)
movl r10,_bootdev # From where? (see rpb.h)
bisl3 $0x80000000,r9,_esym # End of symbols (if loaded)
bisl3 $0x80000000,r9,_esym # End of loaded code
movl r8,_avail_end # Usable memory (from VMB)
pushl $0x1f0000 # Push a nice PSL
pushl $to # Address to jump to
rei # change to kernel stack
to: movw $0xfff,_panic # Save all regs in panic
bbc $6,_boothowto,2f # Check debugger bit
addl3 _esym,$0x3ff,r0 # Round symbol table end
bicl3 $0x3ff,r0,_proc0paddr # save proc0 uarea pointer
brb 3f
2: bicl3 $0x3ff,$_end+0x3ff,_proc0paddr # end of bss
3: bicl3 $0x80000000,_proc0paddr,r0 # get phys proc0 uarea addr
bicl3 $0x80000000,_proc0paddr,r0 # get phys proc0 uarea addr
mtpr r0,$PR_PCBB # Save in IPR PCBB
addl3 $USPACE,_proc0paddr,r0 # Get kernel stack top
mtpr r0,$PR_KSP # put in IPR KSP
@ -159,7 +156,7 @@ ENTRY(badaddr,0) # Called with addr,b/w/l
# Have bcopy and bzero here to be sure that system files that not gets
# macros.h included will not complain.
#if 0
ENTRY(bcopy,0)
movl 4(ap), r0
movl 8(ap), r1
@ -172,7 +169,7 @@ ENTRY(bzero,0)
movl 8(ap), r1
movc5 $0, (r0), $0, r1, (r0)
ret
#endif
#ifdef DDB
/*
* DDB is the only routine that uses setjmp/longjmp.
@ -316,12 +313,13 @@ _copyin:.word 0
ret
ENTRY(kcopy,0)
movl *pcbtrap,-(sp)
movab 1f,*pcbtrap
movl 4(ap),r1
movl 8(ap),r2
movc3 12(ap),(r1), (r2)
clrl r1
1: clrl *pcbtrap
1: movl (sp)+,*pcbtrap
movl r1,r0
ret