Differential D4712 Diff 19281 sys/i386/i386/minidump_machdep.c

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sys/i386/i386/minidump_machdep.c

Show First 20 Lines • Show All 239 Lines • ▼ Show 20 Lines	while (bits) {
dump_drop_page(pa);		dump_drop_page(pa);
}		}
bits &= ~(1ul << bit);		bits &= ~(1ul << bit);
}		}
}		}
dumpsize += PAGE_SIZE;		dumpsize += PAGE_SIZE;

/* Determine dump offset on device. */		/* Determine dump offset on device. */
if (di->mediasize < SIZEOF_METADATA + dumpsize + sizeof(kdh) * 2) {		if (di->mediasize < SIZEOF_METADATA + dumpsize + di->blocksize * 2 +
		kerneldumpcrypto_dumpkeysize(di->kdc)) {
error = ENOSPC;		error = ENOSPC;
goto fail;		goto fail;
}		}
dumplo = di->mediaoffset + di->mediasize - dumpsize;		dumplo = di->mediaoffset + di->mediasize - dumpsize;
dumplo -= sizeof(kdh) * 2;		dumplo -= di->blocksize * 2;
		dumplo -= kerneldumpcrypto_dumpkeysize(di->kdc);
progress = dumpsize;		progress = dumpsize;

		/* Initialize kernel dump crypto. */
		error = kerneldumpcrypto_init(di->kdc);
		if (error)
		goto fail;

/* Initialize mdhdr */		/* Initialize mdhdr */
bzero(&mdhdr, sizeof(mdhdr));		bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);		strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;		mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;		mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.bitmapsize = vm_page_dump_size;		mdhdr.bitmapsize = vm_page_dump_size;
mdhdr.ptesize = ptesize;		mdhdr.ptesize = ptesize;
mdhdr.kernbase = KERNBASE;		mdhdr.kernbase = KERNBASE;
#if defined(PAE) \|\| defined(PAE_TABLES)		#if defined(PAE) \|\| defined(PAE_TABLES)
mdhdr.paemode = 1;		mdhdr.paemode = 1;
#endif		#endif

mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_I386_VERSION, dumpsize, di->blocksize);		mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_I386_VERSION, dumpsize,
		kerneldumpcrypto_dumpkeysize(di->kdc), di->blocksize);

printf("Physical memory: %ju MB\n", ptoa((uintmax_t)physmem) / 1048576);		printf("Physical memory: %ju MB\n", ptoa((uintmax_t)physmem) / 1048576);
printf("Dumping %llu MB:", (long long)dumpsize >> 20);		printf("Dumping %llu MB:", (long long)dumpsize >> 20);

/* Dump leader */		/* Dump leader */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh));		error = dump_write_header(di, &kdh, 0, dumplo);
if (error)		if (error)
goto fail;		goto fail;
dumplo += sizeof(kdh);		dumplo += di->blocksize;

		/* Dump key */
		error = dump_write_key(di, 0, dumplo);
		if (error)
		goto fail;
		dumplo += kerneldumpcrypto_dumpkeysize(di->kdc);

/* Dump my header */		/* Dump my header */
bzero(&fakept, sizeof(fakept));		bzero(&fakept, sizeof(fakept));
bcopy(&mdhdr, &fakept, sizeof(mdhdr));		bcopy(&mdhdr, &fakept, sizeof(mdhdr));
error = blk_write(di, (char *)&fakept, 0, PAGE_SIZE);		error = blk_write(di, (char *)&fakept, 0, PAGE_SIZE);
if (error)		if (error)
goto fail;		goto fail;

/* Dump msgbuf up front */		/* Dump msgbuf up front */
▲ Show 20 Lines • Show All 57 Lines • ▼ Show 20 Lines	for (i = 0; i < vm_page_dump_size / sizeof(*vm_page_dump); i++) {
}		}
}		}

error = blk_flush(di);		error = blk_flush(di);
if (error)		if (error)
goto fail;		goto fail;

/* Dump trailer */		/* Dump trailer */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh));		error = dump_write_header(di, &kdh, 0, dumplo);
if (error)		if (error)
goto fail;		goto fail;
dumplo += sizeof(kdh);		dumplo += di->blocksize;

/* Signal completion, signoff and exit stage left. */		/* Signal completion, signoff and exit stage left. */
dump_write(di, NULL, 0, 0, 0);		dump_write(di, NULL, 0, 0, 0);
printf("\nDump complete\n");		printf("\nDump complete\n");
return (0);		return (0);

fail:		fail:
if (error < 0)		if (error < 0)
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