![Kyungmin Park](/assets/img/avatar_default.png)
Don't use ref->flash_offset directly in debugging code, use the ref_offset macro instead. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
706 lines
22 KiB
C
706 lines
22 KiB
C
/*
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* JFFS2 -- Journalling Flash File System, Version 2.
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*
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* Copyright (C) 2001-2003 Red Hat, Inc.
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*
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* Created by David Woodhouse <dwmw2@infradead.org>
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*
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* For licensing information, see the file 'LICENCE' in this directory.
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*
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* $Id: debug.c,v 1.12 2005/11/07 11:14:39 gleixner Exp $
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*
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/pagemap.h>
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#include <linux/crc32.h>
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#include <linux/jffs2.h>
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#include <linux/mtd/mtd.h>
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#include "nodelist.h"
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#include "debug.h"
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#ifdef JFFS2_DBG_SANITY_CHECKS
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void
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__jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb)
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{
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if (unlikely(jeb && jeb->used_size + jeb->dirty_size +
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jeb->free_size + jeb->wasted_size +
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jeb->unchecked_size != c->sector_size)) {
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JFFS2_ERROR("eeep, space accounting for block at 0x%08x is screwed.\n", jeb->offset);
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JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + wasted %#08x + unchecked %#08x != total %#08x.\n",
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jeb->free_size, jeb->dirty_size, jeb->used_size,
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jeb->wasted_size, jeb->unchecked_size, c->sector_size);
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BUG();
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}
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if (unlikely(c->used_size + c->dirty_size + c->free_size + c->erasing_size + c->bad_size
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+ c->wasted_size + c->unchecked_size != c->flash_size)) {
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JFFS2_ERROR("eeep, space accounting superblock info is screwed.\n");
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JFFS2_ERROR("free %#08x + dirty %#08x + used %#08x + erasing %#08x + bad %#08x + wasted %#08x + unchecked %#08x != total %#08x.\n",
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c->free_size, c->dirty_size, c->used_size, c->erasing_size, c->bad_size,
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c->wasted_size, c->unchecked_size, c->flash_size);
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BUG();
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}
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}
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void
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__jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb)
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{
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spin_lock(&c->erase_completion_lock);
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jffs2_dbg_acct_sanity_check_nolock(c, jeb);
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spin_unlock(&c->erase_completion_lock);
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}
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#endif /* JFFS2_DBG_SANITY_CHECKS */
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#ifdef JFFS2_DBG_PARANOIA_CHECKS
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/*
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* Check the fragtree.
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*/
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void
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__jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f)
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{
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down(&f->sem);
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__jffs2_dbg_fragtree_paranoia_check_nolock(f);
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up(&f->sem);
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}
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void
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__jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f)
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{
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struct jffs2_node_frag *frag;
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int bitched = 0;
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for (frag = frag_first(&f->fragtree); frag; frag = frag_next(frag)) {
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struct jffs2_full_dnode *fn = frag->node;
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if (!fn || !fn->raw)
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continue;
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if (ref_flags(fn->raw) == REF_PRISTINE) {
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if (fn->frags > 1) {
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JFFS2_ERROR("REF_PRISTINE node at 0x%08x had %d frags. Tell dwmw2.\n",
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ref_offset(fn->raw), fn->frags);
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bitched = 1;
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}
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/* A hole node which isn't multi-page should be garbage-collected
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and merged anyway, so we just check for the frag size here,
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rather than mucking around with actually reading the node
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and checking the compression type, which is the real way
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to tell a hole node. */
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if (frag->ofs & (PAGE_CACHE_SIZE-1) && frag_prev(frag)
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&& frag_prev(frag)->size < PAGE_CACHE_SIZE && frag_prev(frag)->node) {
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JFFS2_ERROR("REF_PRISTINE node at 0x%08x had a previous non-hole frag in the same page. Tell dwmw2.\n",
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ref_offset(fn->raw));
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bitched = 1;
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}
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if ((frag->ofs+frag->size) & (PAGE_CACHE_SIZE-1) && frag_next(frag)
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&& frag_next(frag)->size < PAGE_CACHE_SIZE && frag_next(frag)->node) {
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JFFS2_ERROR("REF_PRISTINE node at 0x%08x (%08x-%08x) had a following non-hole frag in the same page. Tell dwmw2.\n",
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ref_offset(fn->raw), frag->ofs, frag->ofs+frag->size);
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bitched = 1;
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}
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}
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}
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if (bitched) {
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JFFS2_ERROR("fragtree is corrupted.\n");
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__jffs2_dbg_dump_fragtree_nolock(f);
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BUG();
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}
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}
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/*
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* Check if the flash contains all 0xFF before we start writing.
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*/
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void
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__jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c,
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uint32_t ofs, int len)
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{
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size_t retlen;
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int ret, i;
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unsigned char *buf;
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buf = kmalloc(len, GFP_KERNEL);
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if (!buf)
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return;
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ret = jffs2_flash_read(c, ofs, len, &retlen, buf);
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if (ret || (retlen != len)) {
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JFFS2_WARNING("read %d bytes failed or short. ret %d, retlen %zd.\n",
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len, ret, retlen);
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kfree(buf);
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return;
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}
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ret = 0;
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for (i = 0; i < len; i++)
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if (buf[i] != 0xff)
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ret = 1;
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if (ret) {
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JFFS2_ERROR("argh, about to write node to %#08x on flash, but there are data already there. The first corrupted byte is at %#08x offset.\n",
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ofs, ofs + i);
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__jffs2_dbg_dump_buffer(buf, len, ofs);
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kfree(buf);
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BUG();
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}
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kfree(buf);
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}
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/*
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* Check the space accounting and node_ref list correctness for the JFFS2 erasable block 'jeb'.
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*/
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void
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__jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb)
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{
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spin_lock(&c->erase_completion_lock);
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__jffs2_dbg_acct_paranoia_check_nolock(c, jeb);
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spin_unlock(&c->erase_completion_lock);
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}
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void
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__jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb)
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{
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uint32_t my_used_size = 0;
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uint32_t my_unchecked_size = 0;
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uint32_t my_dirty_size = 0;
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struct jffs2_raw_node_ref *ref2 = jeb->first_node;
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while (ref2) {
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uint32_t totlen = ref_totlen(c, jeb, ref2);
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if (ref_offset(ref2) < jeb->offset ||
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ref_offset(ref2) > jeb->offset + c->sector_size) {
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JFFS2_ERROR("node_ref %#08x shouldn't be in block at %#08x.\n",
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ref_offset(ref2), jeb->offset);
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goto error;
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}
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if (ref_flags(ref2) == REF_UNCHECKED)
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my_unchecked_size += totlen;
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else if (!ref_obsolete(ref2))
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my_used_size += totlen;
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else
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my_dirty_size += totlen;
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if ((!ref_next(ref2)) != (ref2 == jeb->last_node)) {
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JFFS2_ERROR("node_ref for node at %#08x (mem %p) has next at %#08x (mem %p), last_node is at %#08x (mem %p).\n",
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ref_offset(ref2), ref2, ref_offset(ref_next(ref2)), ref_next(ref2),
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ref_offset(jeb->last_node), jeb->last_node);
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goto error;
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}
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ref2 = ref_next(ref2);
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}
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if (my_used_size != jeb->used_size) {
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JFFS2_ERROR("Calculated used size %#08x != stored used size %#08x.\n",
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my_used_size, jeb->used_size);
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goto error;
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}
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if (my_unchecked_size != jeb->unchecked_size) {
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JFFS2_ERROR("Calculated unchecked size %#08x != stored unchecked size %#08x.\n",
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my_unchecked_size, jeb->unchecked_size);
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goto error;
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}
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#if 0
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/* This should work when we implement ref->__totlen elemination */
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if (my_dirty_size != jeb->dirty_size + jeb->wasted_size) {
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JFFS2_ERROR("Calculated dirty+wasted size %#08x != stored dirty + wasted size %#08x\n",
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my_dirty_size, jeb->dirty_size + jeb->wasted_size);
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goto error;
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}
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if (jeb->free_size == 0
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&& my_used_size + my_unchecked_size + my_dirty_size != c->sector_size) {
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JFFS2_ERROR("The sum of all nodes in block (%#x) != size of block (%#x)\n",
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my_used_size + my_unchecked_size + my_dirty_size,
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c->sector_size);
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goto error;
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}
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#endif
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return;
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error:
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__jffs2_dbg_dump_node_refs_nolock(c, jeb);
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__jffs2_dbg_dump_jeb_nolock(jeb);
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__jffs2_dbg_dump_block_lists_nolock(c);
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BUG();
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}
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#endif /* JFFS2_DBG_PARANOIA_CHECKS */
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#if defined(JFFS2_DBG_DUMPS) || defined(JFFS2_DBG_PARANOIA_CHECKS)
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/*
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* Dump the node_refs of the 'jeb' JFFS2 eraseblock.
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*/
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void
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__jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb)
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{
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spin_lock(&c->erase_completion_lock);
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__jffs2_dbg_dump_node_refs_nolock(c, jeb);
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spin_unlock(&c->erase_completion_lock);
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}
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void
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__jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c,
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struct jffs2_eraseblock *jeb)
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{
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struct jffs2_raw_node_ref *ref;
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int i = 0;
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printk(JFFS2_DBG_MSG_PREFIX " Dump node_refs of the eraseblock %#08x\n", jeb->offset);
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if (!jeb->first_node) {
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printk(JFFS2_DBG_MSG_PREFIX " no nodes in the eraseblock %#08x\n", jeb->offset);
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return;
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}
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printk(JFFS2_DBG);
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for (ref = jeb->first_node; ; ref = ref_next(ref)) {
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printk("%#08x(%#x)", ref_offset(ref), ref->__totlen);
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if (ref_next(ref))
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printk("->");
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else
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break;
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if (++i == 4) {
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i = 0;
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printk("\n" JFFS2_DBG);
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}
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}
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printk("\n");
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}
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/*
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* Dump an eraseblock's space accounting.
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*/
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void
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__jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
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{
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spin_lock(&c->erase_completion_lock);
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__jffs2_dbg_dump_jeb_nolock(jeb);
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spin_unlock(&c->erase_completion_lock);
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}
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void
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__jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb)
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{
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if (!jeb)
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return;
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printk(JFFS2_DBG_MSG_PREFIX " dump space accounting for the eraseblock at %#08x:\n",
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jeb->offset);
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printk(JFFS2_DBG "used_size: %#08x\n", jeb->used_size);
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printk(JFFS2_DBG "dirty_size: %#08x\n", jeb->dirty_size);
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printk(JFFS2_DBG "wasted_size: %#08x\n", jeb->wasted_size);
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printk(JFFS2_DBG "unchecked_size: %#08x\n", jeb->unchecked_size);
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printk(JFFS2_DBG "free_size: %#08x\n", jeb->free_size);
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}
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void
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__jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c)
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{
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spin_lock(&c->erase_completion_lock);
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__jffs2_dbg_dump_block_lists_nolock(c);
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spin_unlock(&c->erase_completion_lock);
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}
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void
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__jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c)
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{
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printk(JFFS2_DBG_MSG_PREFIX " dump JFFS2 blocks lists:\n");
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printk(JFFS2_DBG "flash_size: %#08x\n", c->flash_size);
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printk(JFFS2_DBG "used_size: %#08x\n", c->used_size);
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printk(JFFS2_DBG "dirty_size: %#08x\n", c->dirty_size);
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printk(JFFS2_DBG "wasted_size: %#08x\n", c->wasted_size);
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printk(JFFS2_DBG "unchecked_size: %#08x\n", c->unchecked_size);
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printk(JFFS2_DBG "free_size: %#08x\n", c->free_size);
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printk(JFFS2_DBG "erasing_size: %#08x\n", c->erasing_size);
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printk(JFFS2_DBG "bad_size: %#08x\n", c->bad_size);
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printk(JFFS2_DBG "sector_size: %#08x\n", c->sector_size);
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printk(JFFS2_DBG "jffs2_reserved_blocks size: %#08x\n",
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c->sector_size * c->resv_blocks_write);
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if (c->nextblock)
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printk(JFFS2_DBG "nextblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
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c->nextblock->offset, c->nextblock->used_size,
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c->nextblock->dirty_size, c->nextblock->wasted_size,
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c->nextblock->unchecked_size, c->nextblock->free_size);
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else
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printk(JFFS2_DBG "nextblock: NULL\n");
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if (c->gcblock)
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printk(JFFS2_DBG "gcblock: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
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c->gcblock->offset, c->gcblock->used_size, c->gcblock->dirty_size,
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c->gcblock->wasted_size, c->gcblock->unchecked_size, c->gcblock->free_size);
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else
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printk(JFFS2_DBG "gcblock: NULL\n");
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if (list_empty(&c->clean_list)) {
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printk(JFFS2_DBG "clean_list: empty\n");
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} else {
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struct list_head *this;
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int numblocks = 0;
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uint32_t dirty = 0;
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list_for_each(this, &c->clean_list) {
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struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
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numblocks ++;
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dirty += jeb->wasted_size;
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if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
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printk(JFFS2_DBG "clean_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
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jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
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jeb->unchecked_size, jeb->free_size);
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}
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}
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printk (JFFS2_DBG "Contains %d blocks with total wasted size %u, average wasted size: %u\n",
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numblocks, dirty, dirty / numblocks);
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}
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if (list_empty(&c->very_dirty_list)) {
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printk(JFFS2_DBG "very_dirty_list: empty\n");
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} else {
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struct list_head *this;
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int numblocks = 0;
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uint32_t dirty = 0;
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list_for_each(this, &c->very_dirty_list) {
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struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
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numblocks ++;
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dirty += jeb->dirty_size;
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if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
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printk(JFFS2_DBG "very_dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
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jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
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jeb->unchecked_size, jeb->free_size);
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}
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}
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printk (JFFS2_DBG "Contains %d blocks with total dirty size %u, average dirty size: %u\n",
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numblocks, dirty, dirty / numblocks);
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}
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if (list_empty(&c->dirty_list)) {
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printk(JFFS2_DBG "dirty_list: empty\n");
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} else {
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struct list_head *this;
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int numblocks = 0;
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uint32_t dirty = 0;
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list_for_each(this, &c->dirty_list) {
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struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
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numblocks ++;
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dirty += jeb->dirty_size;
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if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
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printk(JFFS2_DBG "dirty_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
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jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
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jeb->unchecked_size, jeb->free_size);
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}
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}
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printk (JFFS2_DBG "contains %d blocks with total dirty size %u, average dirty size: %u\n",
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numblocks, dirty, dirty / numblocks);
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}
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if (list_empty(&c->erasable_list)) {
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printk(JFFS2_DBG "erasable_list: empty\n");
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} else {
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struct list_head *this;
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list_for_each(this, &c->erasable_list) {
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struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "erasable_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (list_empty(&c->erasing_list)) {
|
|
printk(JFFS2_DBG "erasing_list: empty\n");
|
|
} else {
|
|
struct list_head *this;
|
|
|
|
list_for_each(this, &c->erasing_list) {
|
|
struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "erasing_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (list_empty(&c->erase_pending_list)) {
|
|
printk(JFFS2_DBG "erase_pending_list: empty\n");
|
|
} else {
|
|
struct list_head *this;
|
|
|
|
list_for_each(this, &c->erase_pending_list) {
|
|
struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "erase_pending_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (list_empty(&c->erasable_pending_wbuf_list)) {
|
|
printk(JFFS2_DBG "erasable_pending_wbuf_list: empty\n");
|
|
} else {
|
|
struct list_head *this;
|
|
|
|
list_for_each(this, &c->erasable_pending_wbuf_list) {
|
|
struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "erasable_pending_wbuf_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (list_empty(&c->free_list)) {
|
|
printk(JFFS2_DBG "free_list: empty\n");
|
|
} else {
|
|
struct list_head *this;
|
|
|
|
list_for_each(this, &c->free_list) {
|
|
struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "free_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (list_empty(&c->bad_list)) {
|
|
printk(JFFS2_DBG "bad_list: empty\n");
|
|
} else {
|
|
struct list_head *this;
|
|
|
|
list_for_each(this, &c->bad_list) {
|
|
struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "bad_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (list_empty(&c->bad_used_list)) {
|
|
printk(JFFS2_DBG "bad_used_list: empty\n");
|
|
} else {
|
|
struct list_head *this;
|
|
|
|
list_for_each(this, &c->bad_used_list) {
|
|
struct jffs2_eraseblock *jeb = list_entry(this, struct jffs2_eraseblock, list);
|
|
|
|
if (!(jeb->used_size == 0 && jeb->dirty_size == 0 && jeb->wasted_size == 0)) {
|
|
printk(JFFS2_DBG "bad_used_list: %#08x (used %#08x, dirty %#08x, wasted %#08x, unchecked %#08x, free %#08x)\n",
|
|
jeb->offset, jeb->used_size, jeb->dirty_size, jeb->wasted_size,
|
|
jeb->unchecked_size, jeb->free_size);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
__jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f)
|
|
{
|
|
down(&f->sem);
|
|
jffs2_dbg_dump_fragtree_nolock(f);
|
|
up(&f->sem);
|
|
}
|
|
|
|
void
|
|
__jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f)
|
|
{
|
|
struct jffs2_node_frag *this = frag_first(&f->fragtree);
|
|
uint32_t lastofs = 0;
|
|
int buggy = 0;
|
|
|
|
printk(JFFS2_DBG_MSG_PREFIX " dump fragtree of ino #%u\n", f->inocache->ino);
|
|
while(this) {
|
|
if (this->node)
|
|
printk(JFFS2_DBG "frag %#04x-%#04x: %#08x(%d) on flash (*%p), left (%p), right (%p), parent (%p)\n",
|
|
this->ofs, this->ofs+this->size, ref_offset(this->node->raw),
|
|
ref_flags(this->node->raw), this, frag_left(this), frag_right(this),
|
|
frag_parent(this));
|
|
else
|
|
printk(JFFS2_DBG "frag %#04x-%#04x: hole (*%p). left (%p), right (%p), parent (%p)\n",
|
|
this->ofs, this->ofs+this->size, this, frag_left(this),
|
|
frag_right(this), frag_parent(this));
|
|
if (this->ofs != lastofs)
|
|
buggy = 1;
|
|
lastofs = this->ofs + this->size;
|
|
this = frag_next(this);
|
|
}
|
|
|
|
if (f->metadata)
|
|
printk(JFFS2_DBG "metadata at 0x%08x\n", ref_offset(f->metadata->raw));
|
|
|
|
if (buggy) {
|
|
JFFS2_ERROR("frag tree got a hole in it.\n");
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
#define JFFS2_BUFDUMP_BYTES_PER_LINE 32
|
|
void
|
|
__jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs)
|
|
{
|
|
int skip;
|
|
int i;
|
|
|
|
printk(JFFS2_DBG_MSG_PREFIX " dump from offset %#08x to offset %#08x (%x bytes).\n",
|
|
offs, offs + len, len);
|
|
i = skip = offs % JFFS2_BUFDUMP_BYTES_PER_LINE;
|
|
offs = offs & ~(JFFS2_BUFDUMP_BYTES_PER_LINE - 1);
|
|
|
|
if (skip != 0)
|
|
printk(JFFS2_DBG "%#08x: ", offs);
|
|
|
|
while (skip--)
|
|
printk(" ");
|
|
|
|
while (i < len) {
|
|
if ((i % JFFS2_BUFDUMP_BYTES_PER_LINE) == 0 && i != len -1) {
|
|
if (i != 0)
|
|
printk("\n");
|
|
offs += JFFS2_BUFDUMP_BYTES_PER_LINE;
|
|
printk(JFFS2_DBG "%0#8x: ", offs);
|
|
}
|
|
|
|
printk("%02x ", buf[i]);
|
|
|
|
i += 1;
|
|
}
|
|
|
|
printk("\n");
|
|
}
|
|
|
|
/*
|
|
* Dump a JFFS2 node.
|
|
*/
|
|
void
|
|
__jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs)
|
|
{
|
|
union jffs2_node_union node;
|
|
int len = sizeof(union jffs2_node_union);
|
|
size_t retlen;
|
|
uint32_t crc;
|
|
int ret;
|
|
|
|
printk(JFFS2_DBG_MSG_PREFIX " dump node at offset %#08x.\n", ofs);
|
|
|
|
ret = jffs2_flash_read(c, ofs, len, &retlen, (unsigned char *)&node);
|
|
if (ret || (retlen != len)) {
|
|
JFFS2_ERROR("read %d bytes failed or short. ret %d, retlen %zd.\n",
|
|
len, ret, retlen);
|
|
return;
|
|
}
|
|
|
|
printk(JFFS2_DBG "magic:\t%#04x\n", je16_to_cpu(node.u.magic));
|
|
printk(JFFS2_DBG "nodetype:\t%#04x\n", je16_to_cpu(node.u.nodetype));
|
|
printk(JFFS2_DBG "totlen:\t%#08x\n", je32_to_cpu(node.u.totlen));
|
|
printk(JFFS2_DBG "hdr_crc:\t%#08x\n", je32_to_cpu(node.u.hdr_crc));
|
|
|
|
crc = crc32(0, &node.u, sizeof(node.u) - 4);
|
|
if (crc != je32_to_cpu(node.u.hdr_crc)) {
|
|
JFFS2_ERROR("wrong common header CRC.\n");
|
|
return;
|
|
}
|
|
|
|
if (je16_to_cpu(node.u.magic) != JFFS2_MAGIC_BITMASK &&
|
|
je16_to_cpu(node.u.magic) != JFFS2_OLD_MAGIC_BITMASK)
|
|
{
|
|
JFFS2_ERROR("wrong node magic: %#04x instead of %#04x.\n",
|
|
je16_to_cpu(node.u.magic), JFFS2_MAGIC_BITMASK);
|
|
return;
|
|
}
|
|
|
|
switch(je16_to_cpu(node.u.nodetype)) {
|
|
|
|
case JFFS2_NODETYPE_INODE:
|
|
|
|
printk(JFFS2_DBG "the node is inode node\n");
|
|
printk(JFFS2_DBG "ino:\t%#08x\n", je32_to_cpu(node.i.ino));
|
|
printk(JFFS2_DBG "version:\t%#08x\n", je32_to_cpu(node.i.version));
|
|
printk(JFFS2_DBG "mode:\t%#08x\n", node.i.mode.m);
|
|
printk(JFFS2_DBG "uid:\t%#04x\n", je16_to_cpu(node.i.uid));
|
|
printk(JFFS2_DBG "gid:\t%#04x\n", je16_to_cpu(node.i.gid));
|
|
printk(JFFS2_DBG "isize:\t%#08x\n", je32_to_cpu(node.i.isize));
|
|
printk(JFFS2_DBG "atime:\t%#08x\n", je32_to_cpu(node.i.atime));
|
|
printk(JFFS2_DBG "mtime:\t%#08x\n", je32_to_cpu(node.i.mtime));
|
|
printk(JFFS2_DBG "ctime:\t%#08x\n", je32_to_cpu(node.i.ctime));
|
|
printk(JFFS2_DBG "offset:\t%#08x\n", je32_to_cpu(node.i.offset));
|
|
printk(JFFS2_DBG "csize:\t%#08x\n", je32_to_cpu(node.i.csize));
|
|
printk(JFFS2_DBG "dsize:\t%#08x\n", je32_to_cpu(node.i.dsize));
|
|
printk(JFFS2_DBG "compr:\t%#02x\n", node.i.compr);
|
|
printk(JFFS2_DBG "usercompr:\t%#02x\n", node.i.usercompr);
|
|
printk(JFFS2_DBG "flags:\t%#04x\n", je16_to_cpu(node.i.flags));
|
|
printk(JFFS2_DBG "data_crc:\t%#08x\n", je32_to_cpu(node.i.data_crc));
|
|
printk(JFFS2_DBG "node_crc:\t%#08x\n", je32_to_cpu(node.i.node_crc));
|
|
|
|
crc = crc32(0, &node.i, sizeof(node.i) - 8);
|
|
if (crc != je32_to_cpu(node.i.node_crc)) {
|
|
JFFS2_ERROR("wrong node header CRC.\n");
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_DIRENT:
|
|
|
|
printk(JFFS2_DBG "the node is dirent node\n");
|
|
printk(JFFS2_DBG "pino:\t%#08x\n", je32_to_cpu(node.d.pino));
|
|
printk(JFFS2_DBG "version:\t%#08x\n", je32_to_cpu(node.d.version));
|
|
printk(JFFS2_DBG "ino:\t%#08x\n", je32_to_cpu(node.d.ino));
|
|
printk(JFFS2_DBG "mctime:\t%#08x\n", je32_to_cpu(node.d.mctime));
|
|
printk(JFFS2_DBG "nsize:\t%#02x\n", node.d.nsize);
|
|
printk(JFFS2_DBG "type:\t%#02x\n", node.d.type);
|
|
printk(JFFS2_DBG "node_crc:\t%#08x\n", je32_to_cpu(node.d.node_crc));
|
|
printk(JFFS2_DBG "name_crc:\t%#08x\n", je32_to_cpu(node.d.name_crc));
|
|
|
|
node.d.name[node.d.nsize] = '\0';
|
|
printk(JFFS2_DBG "name:\t\"%s\"\n", node.d.name);
|
|
|
|
crc = crc32(0, &node.d, sizeof(node.d) - 8);
|
|
if (crc != je32_to_cpu(node.d.node_crc)) {
|
|
JFFS2_ERROR("wrong node header CRC.\n");
|
|
return;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
printk(JFFS2_DBG "node type is unknown\n");
|
|
break;
|
|
}
|
|
}
|
|
#endif /* JFFS2_DBG_DUMPS || JFFS2_DBG_PARANOIA_CHECKS */
|