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Use the symtab info given by loadfile in the booter instead of assuming 

we know where it is.  This is a requirement for ELF.
This commit is contained in:
matt 2001-05-02 16:05:07 +00:00
parent 504811fa55
commit 2cc76644a2
2 changed files with 14 additions and 4 deletions
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9
sys/arch/vax/vax/machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.114 2001/04/30 04:26:19 matt Exp $ */
/* $NetBSD: machdep.c,v 1.115 2001/05/02 16:05:07 matt Exp $ */
/*
* Copyright (c) 1994, 1998 Ludd, University of Lule}, Sweden.
@ -104,6 +104,8 @@ char cpu_model[100];
caddr_t msgbufaddr;
int physmem;
int dumpsize = 0;
int *symtab_start;
int symtab_nsyms;
#define IOMAPSZ 100
static struct map iomap[IOMAPSZ];
@ -300,7 +302,10 @@ consinit()
extern int end; /* Contains pointer to symsize also */
extern int *esym;
ddb_init(*(int *)&end, ((int *)&end) + 1, esym);
if (symtab_start != NULL)
ddb_init(symtab_nsyms, symtab_start, esym);
else
ddb_init(*(int *)&end, ((int *)&end) + 1, esym);
}
#ifdef DEBUG
if (sizeof(struct user) > REDZONEADDR)

9
sys/arch/vax/vax/subr.s
View File

@ -1,4 +1,4 @@
/* $NetBSD: subr.s,v 1.56 2000/12/02 17:07:55 ragge Exp $ */
/* $NetBSD: subr.s,v 1.57 2001/05/02 16:05:09 matt Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
@ -109,7 +109,12 @@ ASENTRY(start, 0)
pushl $to # Address to jump to
rei # change to kernel stack
to: movw $0xfff,_C_LABEL(panic) # Save all regs in panic
addl3 _C_LABEL(esym),$0x3ff,r0 # Round symbol table end
cmpb $3,(ap) # symbols info present?
blssu 3f # nope, skip
bisl3 $0x80000000,8(ap),_C_LABEL(symtab_start)
# save start of symtab
movl 12(ap),_C_LABEL(symtab_nsyms) # save end of symtab
3: addl3 _C_LABEL(esym),$0x3ff,r0 # Round symbol table end
bicl3 $0x3ff,r0,_C_LABEL(proc0paddr) # save proc0 uarea pointer
bicl3 $0x80000000,_C_LABEL(proc0paddr),r0 # get phys proc0 uarea addr
mtpr r0,$PR_PCBB # Save in IPR PCBB