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make sun3x work again after the recent change to the m68k cpu_kcore_hdr: 

allocate a page for dumps like the sun3 does rather than using part of
the msgbuf page.  this also lets the msgbuf use the full msgbuf page.
This commit is contained in:
chs 2001-05-28 20:56:54 +00:00
parent a83346f337
commit a8651c4b09
2 changed files with 20 additions and 9 deletions
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6
sys/arch/sun3/include/param.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: param.h,v 1.51 2000/02/11 19:30:30 thorpej Exp $ */
/* $NetBSD: param.h,v 1.52 2001/05/28 20:56:54 chs Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -56,8 +56,8 @@
#ifdef MSGBUFSIZE
#error "MSGBUFSIZE is not user-adjustable for this arch"
#endif
#define MSGBUFOFF 0x200
#define MSGBUFSIZE (NBPG - MSGBUFOFF)
#define MSGBUFOFF 0
#define MSGBUFSIZE (NBPG)
/* This is needed by ps (actually USPACE). */
#define UPAGES 2 /* pages of u-area */

21
sys/arch/sun3/sun3x/machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.65 2001/04/24 04:31:14 thorpej Exp $ */
/* $NetBSD: machdep.c,v 1.66 2001/05/28 20:56:54 chs Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@ -122,6 +122,8 @@ char *cpu_string = NULL;
int cpu_has_vme = 0;
int has_iocache = 0;
vaddr_t dumppage;
static void identifycpu __P((void));
static void initcpu __P((void));
@ -205,6 +207,12 @@ cpu_startup()
format_bytes(pbuf, sizeof(pbuf), ctob(physmem));
printf("total memory = %s\n", pbuf);
/*
* Get scratch page for dumpsys().
*/
if ((dumppage = uvm_km_alloc(kernel_map, NBPG)) == 0)
panic("startup: alloc dumppage");
/*
* Find out how much space we need, allocate it,
* and then give everything true virtual addresses.
@ -575,8 +583,11 @@ cpu_dumpconf()
int (*getsize)__P((dev_t));
/* Validate space in page zero for the kcore header. */
if (MSGBUFOFF < (sizeof(kcore_seg_t) + sizeof(cpu_kcore_hdr_t)))
if (MSGBUFOFF < (sizeof(kcore_seg_t) + sizeof(cpu_kcore_hdr_t))) {
printf("%d %d\n",
MSGBUFOFF, (sizeof(kcore_seg_t) + sizeof(cpu_kcore_hdr_t)));
panic("cpu_dumpconf: MSGBUFOFF too small");
}
if (dumpdev == NODEV)
return;
@ -662,8 +673,8 @@ dumpsys()
*/
/* Set pointers to all three parts. */
kseg_p = (kcore_seg_t *)KERNBASE;
chdr_p = (cpu_kcore_hdr_t *) (kseg_p + 1);
kseg_p = (kcore_seg_t *)dumppage;
chdr_p = (cpu_kcore_hdr_t *)(kseg_p + 1);
sh = &chdr_p->un._sun3x;
/* Fill in kcore_seg_t part. */
@ -685,7 +696,7 @@ dumpsys()
blkno = dumplo;
todo = dumpsize; /* pages */
vaddr = (char*)vmmap; /* Borrow /dev/mem VA */
vaddr = (char *)vmmap; /* Borrow /dev/mem VA */
for (seg = 0; seg < SUN3X_NPHYS_RAM_SEGS; seg++) {
crs_p = &sh->ram_segs[seg];