225 строки
7.1 KiB
C
225 строки
7.1 KiB
C
/*
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* Copyright (c) International Business Machines Corp., 2006
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Artem Bityutskiy (Битюцкий Артём)
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*/
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/*
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* Here we keep all the UBI debugging stuff which should normally be disabled
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* and compiled-out, but it is extremely helpful when hunting bugs or doing big
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* changes.
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*/
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#ifdef CONFIG_MTD_UBI_DEBUG_MSG
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#include "ubi.h"
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/**
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* ubi_dbg_dump_ec_hdr - dump an erase counter header.
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* @ec_hdr: the erase counter header to dump
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*/
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void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr)
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{
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dbg_msg("erase counter header dump:");
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dbg_msg("magic %#08x", be32_to_cpu(ec_hdr->magic));
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dbg_msg("version %d", (int)ec_hdr->version);
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dbg_msg("ec %llu", (long long)be64_to_cpu(ec_hdr->ec));
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dbg_msg("vid_hdr_offset %d", be32_to_cpu(ec_hdr->vid_hdr_offset));
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dbg_msg("data_offset %d", be32_to_cpu(ec_hdr->data_offset));
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dbg_msg("hdr_crc %#08x", be32_to_cpu(ec_hdr->hdr_crc));
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dbg_msg("erase counter header hexdump:");
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ubi_dbg_hexdump(ec_hdr, UBI_EC_HDR_SIZE);
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}
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/**
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* ubi_dbg_dump_vid_hdr - dump a volume identifier header.
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* @vid_hdr: the volume identifier header to dump
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*/
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void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr)
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{
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dbg_msg("volume identifier header dump:");
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dbg_msg("magic %08x", be32_to_cpu(vid_hdr->magic));
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dbg_msg("version %d", (int)vid_hdr->version);
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dbg_msg("vol_type %d", (int)vid_hdr->vol_type);
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dbg_msg("copy_flag %d", (int)vid_hdr->copy_flag);
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dbg_msg("compat %d", (int)vid_hdr->compat);
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dbg_msg("vol_id %d", be32_to_cpu(vid_hdr->vol_id));
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dbg_msg("lnum %d", be32_to_cpu(vid_hdr->lnum));
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dbg_msg("leb_ver %u", be32_to_cpu(vid_hdr->leb_ver));
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dbg_msg("data_size %d", be32_to_cpu(vid_hdr->data_size));
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dbg_msg("used_ebs %d", be32_to_cpu(vid_hdr->used_ebs));
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dbg_msg("data_pad %d", be32_to_cpu(vid_hdr->data_pad));
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dbg_msg("sqnum %llu",
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(unsigned long long)be64_to_cpu(vid_hdr->sqnum));
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dbg_msg("hdr_crc %08x", be32_to_cpu(vid_hdr->hdr_crc));
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dbg_msg("volume identifier header hexdump:");
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}
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/**
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* ubi_dbg_dump_vol_info- dump volume information.
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* @vol: UBI volume description object
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*/
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void ubi_dbg_dump_vol_info(const struct ubi_volume *vol)
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{
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dbg_msg("volume information dump:");
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dbg_msg("vol_id %d", vol->vol_id);
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dbg_msg("reserved_pebs %d", vol->reserved_pebs);
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dbg_msg("alignment %d", vol->alignment);
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dbg_msg("data_pad %d", vol->data_pad);
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dbg_msg("vol_type %d", vol->vol_type);
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dbg_msg("name_len %d", vol->name_len);
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dbg_msg("usable_leb_size %d", vol->usable_leb_size);
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dbg_msg("used_ebs %d", vol->used_ebs);
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dbg_msg("used_bytes %lld", vol->used_bytes);
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dbg_msg("last_eb_bytes %d", vol->last_eb_bytes);
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dbg_msg("corrupted %d", vol->corrupted);
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dbg_msg("upd_marker %d", vol->upd_marker);
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if (vol->name_len <= UBI_VOL_NAME_MAX &&
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strnlen(vol->name, vol->name_len + 1) == vol->name_len) {
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dbg_msg("name %s", vol->name);
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} else {
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dbg_msg("the 1st 5 characters of the name: %c%c%c%c%c",
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vol->name[0], vol->name[1], vol->name[2],
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vol->name[3], vol->name[4]);
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}
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}
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/**
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* ubi_dbg_dump_vtbl_record - dump a &struct ubi_vtbl_record object.
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* @r: the object to dump
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* @idx: volume table index
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*/
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void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx)
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{
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int name_len = be16_to_cpu(r->name_len);
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dbg_msg("volume table record %d dump:", idx);
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dbg_msg("reserved_pebs %d", be32_to_cpu(r->reserved_pebs));
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dbg_msg("alignment %d", be32_to_cpu(r->alignment));
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dbg_msg("data_pad %d", be32_to_cpu(r->data_pad));
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dbg_msg("vol_type %d", (int)r->vol_type);
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dbg_msg("upd_marker %d", (int)r->upd_marker);
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dbg_msg("name_len %d", name_len);
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if (r->name[0] == '\0') {
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dbg_msg("name NULL");
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return;
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}
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if (name_len <= UBI_VOL_NAME_MAX &&
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strnlen(&r->name[0], name_len + 1) == name_len) {
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dbg_msg("name %s", &r->name[0]);
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} else {
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dbg_msg("1st 5 characters of the name: %c%c%c%c%c",
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r->name[0], r->name[1], r->name[2], r->name[3],
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r->name[4]);
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}
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dbg_msg("crc %#08x", be32_to_cpu(r->crc));
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}
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/**
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* ubi_dbg_dump_sv - dump a &struct ubi_scan_volume object.
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* @sv: the object to dump
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*/
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void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv)
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{
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dbg_msg("volume scanning information dump:");
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dbg_msg("vol_id %d", sv->vol_id);
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dbg_msg("highest_lnum %d", sv->highest_lnum);
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dbg_msg("leb_count %d", sv->leb_count);
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dbg_msg("compat %d", sv->compat);
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dbg_msg("vol_type %d", sv->vol_type);
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dbg_msg("used_ebs %d", sv->used_ebs);
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dbg_msg("last_data_size %d", sv->last_data_size);
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dbg_msg("data_pad %d", sv->data_pad);
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}
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/**
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* ubi_dbg_dump_seb - dump a &struct ubi_scan_leb object.
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* @seb: the object to dump
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* @type: object type: 0 - not corrupted, 1 - corrupted
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*/
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void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type)
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{
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dbg_msg("eraseblock scanning information dump:");
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dbg_msg("ec %d", seb->ec);
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dbg_msg("pnum %d", seb->pnum);
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if (type == 0) {
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dbg_msg("lnum %d", seb->lnum);
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dbg_msg("scrub %d", seb->scrub);
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dbg_msg("sqnum %llu", seb->sqnum);
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dbg_msg("leb_ver %u", seb->leb_ver);
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}
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}
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/**
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* ubi_dbg_dump_mkvol_req - dump a &struct ubi_mkvol_req object.
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* @req: the object to dump
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*/
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void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req)
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{
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char nm[17];
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dbg_msg("volume creation request dump:");
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dbg_msg("vol_id %d", req->vol_id);
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dbg_msg("alignment %d", req->alignment);
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dbg_msg("bytes %lld", (long long)req->bytes);
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dbg_msg("vol_type %d", req->vol_type);
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dbg_msg("name_len %d", req->name_len);
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memcpy(nm, req->name, 16);
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nm[16] = 0;
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dbg_msg("the 1st 16 characters of the name: %s", nm);
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}
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#define BYTES_PER_LINE 32
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/**
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* ubi_dbg_hexdump - dump a buffer.
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* @ptr: the buffer to dump
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* @size: buffer size which must be multiple of 4 bytes
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*/
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void ubi_dbg_hexdump(const void *ptr, int size)
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{
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int i, k = 0, rows, columns;
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const uint8_t *p = ptr;
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size = ALIGN(size, 4);
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rows = size/BYTES_PER_LINE + size % BYTES_PER_LINE;
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for (i = 0; i < rows; i++) {
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int j;
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cond_resched();
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columns = min(size - k, BYTES_PER_LINE) / 4;
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if (columns == 0)
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break;
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printk(KERN_DEBUG "%5d: ", i * BYTES_PER_LINE);
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for (j = 0; j < columns; j++) {
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int n, N;
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N = size - k > 4 ? 4 : size - k;
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for (n = 0; n < N; n++)
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printk("%02x", p[k++]);
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printk(" ");
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}
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printk("\n");
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}
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}
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#endif /* CONFIG_MTD_UBI_DEBUG_MSG */
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