void
dumpsys(struct dumperinfo *di)
{
struct sparc64_dump_hdr hdr;
vm_size_t size, totsize, hdrsize;
int error, i, nreg;
/* Calculate dump size. */
size = 0;
nreg = sparc64_nmemreg;
for (i = 0; i < sparc64_nmemreg; i++)
size += sparc64_memreg[i].mr_size;
/* Account for the header size. */
hdrsize = roundup2(sizeof(hdr) + sizeof(struct sparc64_dump_reg) * nreg,
DEV_BSIZE);
size += hdrsize;
totsize = size + 2 * sizeof(kdh);
if (totsize > di->mediasize) {
printf("Insufficient space on device (need %ld, have %ld), "
"refusing to dump.\n", (long)totsize,
(long)di->mediasize);
error = ENOSPC;
goto fail;
}
/* Determine dump offset on device. */
dumplo = di->mediaoffset + di->mediasize - totsize;
mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_SPARC64_VERSION, size,
di->blocksize);
printf("Dumping %lu MB (%d chunks)\n", (u_long)(size >> 20), nreg);
/* Dump leader */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh));
if (error)
goto fail;
dumplo += sizeof(kdh);
/* Dump the private header. */
hdr.dh_hdr_size = hdrsize;
hdr.dh_tsb_pa = tsb_kernel_phys;
hdr.dh_tsb_size = tsb_kernel_size;
hdr.dh_tsb_mask = tsb_kernel_mask;
hdr.dh_nregions = nreg;
if (buf_write(di, (char *)&hdr, sizeof(hdr)) != 0)
goto fail;
dumppos = hdrsize;
/* Now, write out the region descriptors. */
for (i = 0; i < sparc64_nmemreg; i++) {
error = reg_write(di, sparc64_memreg[i].mr_start,
sparc64_memreg[i].mr_size);
if (error != 0)
goto fail;
}
buf_flush(di);
/* Dump memory chunks. */
for (i = 0; i < sparc64_nmemreg; i++) {
error = blk_dump(di, sparc64_memreg[i].mr_start,
sparc64_memreg[i].mr_size);
if (error != 0)
goto fail;
}
/* Dump trailer */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh));
if (error)
goto fail;
/* Signal completion, signoff and exit stage left. */
dump_write(di, NULL, 0, 0, 0);
printf("\nDump complete\n");
return;
fail:
/* XXX It should look more like VMS :-) */
printf("** DUMP FAILED (ERROR %d) **\n", error);
}
/*
* Commit text dump to disk.
*/
void
textdump_dumpsys(struct dumperinfo *di)
{
off_t dumplen, trailer_offset;
if (di->blocksize != TEXTDUMP_BLOCKSIZE) {
printf("Dump partition block size (%ju) not textdump "
"block size (%ju)", (uintmax_t)di->blocksize,
(uintmax_t)TEXTDUMP_BLOCKSIZE);
return;
}
/*
* We don't know a priori how large the dump will be, but we do know
* that we need to reserve space for metadata and that we need two
* dump headers. Also leave room for one ustar header and one block
* of data.
*/
if (di->mediasize < SIZEOF_METADATA + 2 * sizeof(kdh)) {
printf("Insufficient space on dump partition.\n");
return;
}
textdump_error = 0;
/*
* Position the start of the dump so that we'll write the kernel dump
* trailer immediately before the end of the partition, and then work
* our way back. We will rewrite this header later to reflect the
* true size if things go well.
*/
textdump_offset = di->mediasize - sizeof(kdh);
textdump_saveoff(&trailer_offset);
mkdumpheader(&kdh, TEXTDUMPMAGIC, KERNELDUMP_TEXT_VERSION, 0, TEXTDUMP_BLOCKSIZE);
(void)textdump_writenextblock(di, (char *)&kdh);
/*
* Write a series of files in ustar format.
*/
if (textdump_do_ddb)
db_capture_dump(di);
#ifdef INCLUDE_CONFIG_FILE
if (textdump_do_config)
textdump_dump_config(di);
#endif
if (textdump_do_msgbuf)
textdump_dump_msgbuf(di);
if (textdump_do_panic && panicstr != NULL)
textdump_dump_panic(di);
if (textdump_do_version)
textdump_dump_version(di);
/*
* Now that we know the true size, we can write out the header, then
* seek back to the end and rewrite the trailer with the correct
* size.
*/
dumplen = trailer_offset - (textdump_offset + TEXTDUMP_BLOCKSIZE);
mkdumpheader(&kdh, TEXTDUMPMAGIC, KERNELDUMP_TEXT_VERSION, dumplen,
TEXTDUMP_BLOCKSIZE);
(void)textdump_writenextblock(di, (char *)&kdh);
textdump_restoreoff(trailer_offset);
(void)textdump_writenextblock(di, (char *)&kdh);
/*
* Terminate the dump, report any errors, and clear the pending flag.
*/
if (textdump_error == 0)
(void)dump_write(di, NULL, 0, 0, 0);
if (textdump_error == ENOSPC)
printf("Insufficient space on dump partition\n");
else if (textdump_error != 0)
printf("Error %d writing dump\n", textdump_error);
else
printf("Textdump complete.\n");
textdump_pending = 0;
}
