2 * Copyright (c) 2002 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "opt_watchdog.h"
32 #include <sys/param.h>
33 #include <sys/systm.h>
35 #include <sys/sysctl.h>
36 #include <sys/kernel.h>
38 #include <sys/kerneldump.h>
42 #include <machine/dump.h>
43 #include <machine/elf.h>
44 #include <machine/md_var.h>
45 #include <machine/pcb.h>
46 #include <machine/armreg.h>
49 SYSCTL_INT(_debug, OID_AUTO, minidump, CTLFLAG_RWTUN, &do_minidump, 0,
50 "Enable mini crash dumps");
53 dumpsys_wbinv_all(void)
57 * Make sure we write coherent data. Note that in the SMP case this
58 * only operates on the L1 cache of the current CPU, but all other CPUs
59 * have already been stopped, and their flush/invalidate was done as
62 dcache_wbinv_poc_all();
64 xscale_cache_clean_minidata();
69 dumpsys_map_chunk(vm_paddr_t pa, size_t chunk, void **va)
74 for (i = 0; i < chunk; i++) {
75 a = pa + i * PAGE_SIZE;
76 *va = pmap_kenter_temporary(trunc_page(a), i);
81 * Add a header to be used by libkvm to get the va to pa delta
84 dumpsys_write_aux_headers(struct dumperinfo *di)
89 bzero(&phdr, sizeof(phdr));
90 phdr.p_type = PT_DUMP_DELTA;
91 phdr.p_flags = PF_R; /* XXX */
93 phdr.p_vaddr = KERNVIRTADDR;
94 phdr.p_paddr = pmap_kextract(KERNVIRTADDR);
97 phdr.p_align = PAGE_SIZE;
99 error = dumpsys_buf_write(di, (char*)&phdr, sizeof(phdr));