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linux-davinci-2.6.23
Commit cde02935 authored by 薛德章's avatar 薛德章
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Remove yaffs2_utils from kernel build

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fs/yaffs2/utils/Makefile deleted 100644 → 0
View file @ 76ee471f
#Makefile for mkyaffs
#
# NB this is not yet suitable for putting into the kernel tree.
# YAFFS: Yet another Flash File System. A NAND-flash specific file system.
#
# Copyright (C) 2002 Aleph One Ltd.
# for Toby Churchill Ltd and Brightstar Engineering
#
# Created by Charles Manning <charles@aleph1.co.uk>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
## Change or override KERNELDIR to your kernel
#KERNELDIR = /usr/src/kernel-headers-2.4.18
CFLAGS = -I/usr/include -I.. -O2 -Wall -DCONFIG_YAFFS_UTIL
CFLAGS+= -Wshadow -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Wmissing-declarations
CFLAGS+= -Wmissing-prototypes -Wredundant-decls -Wnested-externs -Winline
## Change if you are using a cross-compiler
MAKETOOLS =
CC=$(MAKETOOLS)gcc
COMMONLINKS = yaffs_ecc.c
COMMONOBJS = $(COMMONLINKS:.c=.o)
MKYAFFSSOURCES = mkyaffsimage.c
MKYAFFSIMAGEOBJS = $(MKYAFFSSOURCES:.c=.o)
MKYAFFS2SOURCES = mkyaffs2image.c
MKYAFFS2LINKS = yaffs_packedtags2.c yaffs_tagsvalidity.c
MKYAFFS2IMAGEOBJS = $(MKYAFFS2SOURCES:.c=.o) $(MKYAFFS2LINKS:.c=.o)
all: mkyaffsimage mkyaffs2image
$(COMMONLINKS) $(MKYAFFSLINKS) $(MKYAFFS2LINKS):
ln -s ../$@ $@
$(COMMONOBJS) $(MKYAFFSIMAGEOBJS) $(MKYAFFS2IMAGEOBJS) : %.o: %.c
$(CC) -c $(CFLAGS) $< -o $@
mkyaffsimage: $(COMMONOBJS) $(MKYAFFSIMAGEOBJS)
$(CC) -o $@ $(COMMONOBJS) $(MKYAFFSIMAGEOBJS)
mkyaffs2image: $(COMMONOBJS) $(MKYAFFS2IMAGEOBJS)
$(CC) -o $@ $(COMMONOBJS) $(MKYAFFS2IMAGEOBJS)
install: mkyaffs2image
@install -p mkyaffs2image ${PRJROOT}/images/ > /dev/null
clean:
rm -f $(COMMONOBJS) $(MKYAFFSIMAGEOBJS) $(MKYAFFS2IMAGEOBJS) $(COMMONLINKS) $(MKYAFFSLINKS) $(MKYAFFS2LINKS) mkyaffsimage mkyaffs2image core
fs/yaffs2/utils/mkyaffs2image.c deleted 100644 → 0
View file @ 76ee471f
/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
* Nick Bane modifications flagged NCB
* Endian handling patches by James Ng.
* mkyaffs2image hacks by NCB
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* makeyaffs2image.c
*
* Makes a YAFFS2 file system image that can be used to load up a file system.
* Uses default Linux MTD layout - change if you need something different.
*/
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <string.h>
#include <unistd.h>
#include "yaffs_ecc.h"
#include "yaffs_guts.h"
#include "yaffs_tagsvalidity.h"
#include "yaffs_packedtags2.h"
unsigned yaffs_traceMask=0;
#define MAX_OBJECTS 10000
#define chunkSize 2048
#define spareSize 64
const char * mkyaffsimage_c_version = "$Id: mkyaffs2image.c,v 1.4 2007-02-14 01:09:06 wookey Exp $";
typedef struct
{
dev_t dev;
ino_t ino;
int obj;
} objItem;
static objItem obj_list[MAX_OBJECTS];
static int n_obj = 0;
static int obj_id = YAFFS_NOBJECT_BUCKETS + 1;
static int nObjects, nDirectories, nPages;
static int outFile;
static int error;
static int convert_endian = 0;
static int obj_compare(const void *a, const void * b)
{
objItem *oa, *ob;
oa = (objItem *)a;
ob = (objItem *)b;
if(oa->dev < ob->dev) return -1;
if(oa->dev > ob->dev) return 1;
if(oa->ino < ob->ino) return -1;
if(oa->ino > ob->ino) return 1;
return 0;
}
static void add_obj_to_list(dev_t dev, ino_t ino, int obj)
{
if(n_obj < MAX_OBJECTS)
{
obj_list[n_obj].dev = dev;
obj_list[n_obj].ino = ino;
obj_list[n_obj].obj = obj;
n_obj++;
qsort(obj_list,n_obj,sizeof(objItem),obj_compare);
}
else
{
// oops! not enough space in the object array
fprintf(stderr,"Not enough space in object array\n");
exit(2);
}
}
static int find_obj_in_list(dev_t dev, ino_t ino)
{
objItem *i = NULL;
objItem test;
test.dev = dev;
test.ino = ino;
if(n_obj > 0)
{
i = bsearch(&test,obj_list,n_obj,sizeof(objItem),obj_compare);
}
if(i)
{
return i->obj;
}
return -1;
}
/* This little function converts a little endian tag to a big endian tag.
* NOTE: The tag is not usable after this other than calculating the CRC
* with.
*/
static void little_to_big_endian(yaffs_Tags *tagsPtr)
{
#if 0 // FIXME NCB
yaffs_TagsUnion * tags = (yaffs_TagsUnion* )tagsPtr; // Work in bytes.
yaffs_TagsUnion temp;
memset(&temp, 0, sizeof(temp));
// Ick, I hate magic numbers.
temp.asBytes[0] = ((tags->asBytes[2] & 0x0F) << 4) | ((tags->asBytes[1] & 0xF0) >> 4);
temp.asBytes[1] = ((tags->asBytes[1] & 0x0F) << 4) | ((tags->asBytes[0] & 0xF0) >> 4);
temp.asBytes[2] = ((tags->asBytes[0] & 0x0F) << 4) | ((tags->asBytes[2] & 0x30) >> 2) | ((tags->asBytes[3] & 0xC0) >> 6);
temp.asBytes[3] = ((tags->asBytes[3] & 0x3F) << 2) | ((tags->asBytes[2] & 0xC0) >> 6);
temp.asBytes[4] = ((tags->asBytes[6] & 0x03) << 6) | ((tags->asBytes[5] & 0xFC) >> 2);
temp.asBytes[5] = ((tags->asBytes[5] & 0x03) << 6) | ((tags->asBytes[4] & 0xFC) >> 2);
temp.asBytes[6] = ((tags->asBytes[4] & 0x03) << 6) | (tags->asBytes[7] & 0x3F);
temp.asBytes[7] = (tags->asBytes[6] & 0xFC) | ((tags->asBytes[7] & 0xC0) >> 6);
// Now copy it back.
tags->asBytes[0] = temp.asBytes[0];
tags->asBytes[1] = temp.asBytes[1];
tags->asBytes[2] = temp.asBytes[2];
tags->asBytes[3] = temp.asBytes[3];
tags->asBytes[4] = temp.asBytes[4];
tags->asBytes[5] = temp.asBytes[5];
tags->asBytes[6] = temp.asBytes[6];
tags->asBytes[7] = temp.asBytes[7];
#endif
}
static int write_chunk(__u8 *data, __u32 objId, __u32 chunkId, __u32 nBytes)
{
yaffs_ExtendedTags t;
yaffs_PackedTags2 pt;
error = write(outFile,data,chunkSize);
if(error < 0) return error;
yaffs_InitialiseTags(&t);
t.chunkId = chunkId;
// t.serialNumber = 0;
t.serialNumber = 1; // **CHECK**
t.byteCount = nBytes;
t.objectId = objId;
t.sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
// added NCB **CHECK**
t.chunkUsed = 1;
if (convert_endian)
{
little_to_big_endian(&t);
}
nPages++;
yaffs_PackTags2(&pt,&t);
// return write(outFile,&pt,sizeof(yaffs_PackedTags2));
return write(outFile,&pt,spareSize);
}
#define SWAP32(x) ((((x) & 0x000000FF) << 24) | \
(((x) & 0x0000FF00) << 8 ) | \
(((x) & 0x00FF0000) >> 8 ) | \
(((x) & 0xFF000000) >> 24))
#define SWAP16(x) ((((x) & 0x00FF) << 8) | \
(((x) & 0xFF00) >> 8))
// This one is easier, since the types are more standard. No funky shifts here.
static void object_header_little_to_big_endian(yaffs_ObjectHeader* oh)
{
oh->type = SWAP32(oh->type); // GCC makes enums 32 bits.
oh->parentObjectId = SWAP32(oh->parentObjectId); // int
oh->sum__NoLongerUsed = SWAP16(oh->sum__NoLongerUsed); // __u16 - Not used, but done for completeness.
// name = skip. Char array. Not swapped.
oh->yst_mode = SWAP32(oh->yst_mode);
#ifdef CONFIG_YAFFS_WINCE // WinCE doesn't implement this, but we need to just in case.
// In fact, WinCE would be *THE* place where this would be an issue!
oh->notForWinCE[0] = SWAP32(oh->notForWinCE[0]);
oh->notForWinCE[1] = SWAP32(oh->notForWinCE[1]);
oh->notForWinCE[2] = SWAP32(oh->notForWinCE[2]);
oh->notForWinCE[3] = SWAP32(oh->notForWinCE[3]);
oh->notForWinCE[4] = SWAP32(oh->notForWinCE[4]);
#else
// Regular POSIX.
oh->yst_uid = SWAP32(oh->yst_uid);
oh->yst_gid = SWAP32(oh->yst_gid);
oh->yst_atime = SWAP32(oh->yst_atime);
oh->yst_mtime = SWAP32(oh->yst_mtime);
oh->yst_ctime = SWAP32(oh->yst_ctime);
#endif
oh->fileSize = SWAP32(oh->fileSize); // Aiee. An int... signed, at that!
oh->equivalentObjectId = SWAP32(oh->equivalentObjectId);
// alias - char array.
oh->yst_rdev = SWAP32(oh->yst_rdev);
#ifdef CONFIG_YAFFS_WINCE
oh->win_ctime[0] = SWAP32(oh->win_ctime[0]);
oh->win_ctime[1] = SWAP32(oh->win_ctime[1]);
oh->win_atime[0] = SWAP32(oh->win_atime[0]);
oh->win_atime[1] = SWAP32(oh->win_atime[1]);
oh->win_mtime[0] = SWAP32(oh->win_mtime[0]);
oh->win_mtime[1] = SWAP32(oh->win_mtime[1]);
oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
#else
oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
oh->roomToGrow[6] = SWAP32(oh->roomToGrow[6]);
oh->roomToGrow[7] = SWAP32(oh->roomToGrow[7]);
oh->roomToGrow[8] = SWAP32(oh->roomToGrow[8]);
oh->roomToGrow[9] = SWAP32(oh->roomToGrow[9]);
oh->roomToGrow[10] = SWAP32(oh->roomToGrow[10]);
oh->roomToGrow[11] = SWAP32(oh->roomToGrow[11]);
#endif
}
static int write_object_header(int objId, yaffs_ObjectType t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias)
{
__u8 bytes[chunkSize];
yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *)bytes;
memset(bytes,0xff,sizeof(bytes));
oh->type = t;
oh->parentObjectId = parent;
strncpy(oh->name,name,YAFFS_MAX_NAME_LENGTH);
if(t != YAFFS_OBJECT_TYPE_HARDLINK)
{
oh->yst_mode = s->st_mode;
oh->yst_uid = s->st_uid;
// NCB 12/9/02 oh->yst_gid = s->yst_uid;
oh->yst_gid = s->st_gid;
oh->yst_atime = s->st_atime;
oh->yst_mtime = s->st_mtime;
oh->yst_ctime = s->st_ctime;
oh->yst_rdev = s->st_rdev;
}
if(t == YAFFS_OBJECT_TYPE_FILE)
{
oh->fileSize = s->st_size;
}
if(t == YAFFS_OBJECT_TYPE_HARDLINK)
{
oh->equivalentObjectId = equivalentObj;
}
if(t == YAFFS_OBJECT_TYPE_SYMLINK)
{
strncpy(oh->alias,alias,YAFFS_MAX_ALIAS_LENGTH);
}
if (convert_endian)
{
object_header_little_to_big_endian(oh);
}
return write_chunk(bytes,objId,0,0xffff);
}
static int process_directory(int parent, const char *path)
{
DIR *dir;
struct dirent *entry;
nDirectories++;
dir = opendir(path);
if(dir)
{
while((entry = readdir(dir)) != NULL)
{
/* Ignore . and .. */
if(strcmp(entry->d_name,".") &&
strcmp(entry->d_name,".."))
{
char full_name[500];
struct stat stats;
int equivalentObj;
int newObj;
sprintf(full_name,"%s/%s",path,entry->d_name);
lstat(full_name,&stats);
if(S_ISLNK(stats.st_mode) ||
S_ISREG(stats.st_mode) ||
S_ISDIR(stats.st_mode) ||
S_ISFIFO(stats.st_mode) ||
S_ISBLK(stats.st_mode) ||
S_ISCHR(stats.st_mode) ||
S_ISSOCK(stats.st_mode))
{
newObj = obj_id++;
nObjects++;
printf("Object %d, %s is a ",newObj,full_name);
/* We're going to create an object for it */
if((equivalentObj = find_obj_in_list(stats.st_dev, stats.st_ino)) > 0)
{
/* we need to make a hard link */
printf("hard link to object %d\n",equivalentObj);
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_HARDLINK, &stats, parent, entry->d_name, equivalentObj, NULL);
}
else
{
add_obj_to_list(stats.st_dev,stats.st_ino,newObj);
if(S_ISLNK(stats.st_mode))
{
char symname[500];
memset(symname,0, sizeof(symname));
readlink(full_name,symname,sizeof(symname) -1);
printf("symlink to \"%s\"\n",symname);
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SYMLINK, &stats, parent, entry->d_name, -1, symname);
}
else if(S_ISREG(stats.st_mode))
{
printf("file, ");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_FILE, &stats, parent, entry->d_name, -1, NULL);
if(error >= 0)
{
int h;
__u8 bytes[chunkSize];
int nBytes;
int chunk = 0;
h = open(full_name,O_RDONLY);
if(h >= 0)
{
memset(bytes,0xff,sizeof(bytes));
while((nBytes = read(h,bytes,sizeof(bytes))) > 0)
{
chunk++;
write_chunk(bytes,newObj,chunk,nBytes);
memset(bytes,0xff,sizeof(bytes));
}
if(nBytes < 0)
error = nBytes;
printf("%d data chunks written\n",chunk);
}
else
{
perror("Error opening file");
}
close(h);
}
}
else if(S_ISSOCK(stats.st_mode))
{
printf("socket\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISFIFO(stats.st_mode))
{
printf("fifo\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISCHR(stats.st_mode))
{
printf("character device\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISBLK(stats.st_mode))
{
printf("block device\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISDIR(stats.st_mode))
{
printf("directory\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, parent, entry->d_name, -1, NULL);
// NCB modified 10/9/2001 process_directory(1,full_name);
process_directory(newObj,full_name);
}
}
}
else
{
printf(" we don't handle this type\n");
}
}
}
}
return 0;
}
int main(int argc, char *argv[])
{
struct stat stats;
printf("mkyaffs2image: image building tool for YAFFS2 built "__DATE__"\n");
if(argc < 3)
{
printf("usage: mkyaffs2image dir image_file [convert]\n");
printf(" dir the directory tree to be converted\n");
printf(" image_file the output file to hold the image\n");
printf(" 'convert' produce a big-endian image from a little-endian machine\n");
exit(1);
}
if ((argc == 4) && (!strncmp(argv[3], "convert", strlen("convert"))))
{
convert_endian = 1;
}
if(stat(argv[1],&stats) < 0)
{
printf("Could not stat %s\n",argv[1]);
exit(1);
}
if(!S_ISDIR(stats.st_mode))
{
printf(" %s is not a directory\n",argv[1]);
exit(1);
}
outFile = open(argv[2],O_CREAT | O_TRUNC | O_WRONLY, S_IREAD | S_IWRITE);
if(outFile < 0)
{
printf("Could not open output file %s\n",argv[2]);
exit(1);
}
printf("Processing directory %s into image file %s\n",argv[1],argv[2]);
error = write_object_header(1, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, 1,"", -1, NULL);
if(error)
error = process_directory(YAFFS_OBJECTID_ROOT,argv[1]);
close(outFile);
if(error < 0)
{
perror("operation incomplete");
exit(1);
}
else
{
printf("Operation complete.\n"
"%d objects in %d directories\n"
"%d NAND pages\n",nObjects, nDirectories, nPages);
}
close(outFile);
exit(0);
}
fs/yaffs2/utils/mkyaffsimage.c deleted 100644 → 0
View file @ 76ee471f
/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
* Copyright (C) 2002-2007 Aleph One Ltd.
* for Toby Churchill Ltd and Brightstar Engineering
*
* Created by Charles Manning <charles@aleph1.co.uk>
* Nick Bane modifications flagged NCB
* Endian handling patches by James Ng
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* makeyaffsimage.c
*
* Makes a YAFFS file system image that can be used to load up a file system.
*/
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <string.h>
#include <unistd.h>
#include "yaffs_ecc.h"
#include "yaffs_guts.h"
#define MAX_OBJECTS 10000
const char * mkyaffsimage_c_version = "$Id: mkyaffsimage.c,v 1.7 2003/07/16 03:00:48 charles Exp $";
typedef struct
{
dev_t dev;
ino_t ino;
int obj;
} objItem;
static objItem obj_list[MAX_OBJECTS];
static int n_obj = 0;
static int obj_id = YAFFS_NOBJECT_BUCKETS + 1;
static int nObjects, nDirectories, nPages;
static int outFile;
static int error;
static int convert_endian = 0;
static int obj_compare(const void *a, const void * b)
{
objItem *oa, *ob;
oa = (objItem *)a;
ob = (objItem *)b;
if(oa->dev < ob->dev) return -1;
if(oa->dev > ob->dev) return 1;
if(oa->ino < ob->ino) return -1;
if(oa->ino > ob->ino) return 1;
return 0;
}
static void add_obj_to_list(dev_t dev, ino_t ino, int obj)
{
if(n_obj < MAX_OBJECTS)
{
obj_list[n_obj].dev = dev;
obj_list[n_obj].ino = ino;
obj_list[n_obj].obj = obj;
n_obj++;
qsort(obj_list,n_obj,sizeof(objItem),obj_compare);
}
else
{
// oops! not enough space in the object array
fprintf(stderr,"Not enough space in object array\n");
exit(2);
}
}
static int find_obj_in_list(dev_t dev, ino_t ino)
{
objItem *i = NULL;
objItem test;
test.dev = dev;
test.ino = ino;
if(n_obj > 0)
{
i = bsearch(&test,obj_list,n_obj,sizeof(objItem),obj_compare);
}
if(i)
{
return i->obj;
}
return -1;
}
// NCB added 10/9/2002
static __u16 yaffs_CalcNameSum(const char *name)
{
__u16 sum = 0;
__u16 i = 1;
__u8 *bname = (__u8 *)name;
while (*bname)
{
sum += (*bname) * i;
i++;
bname++;
}
return sum;
}
static void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
{
yaffs_ECCCalculate(data , spare->ecc1);
yaffs_ECCCalculate(&data[256] , spare->ecc2);
}
static void yaffs_CalcTagsECC(yaffs_Tags *tags)
{
// Todo don't do anything yet. Need to calculate ecc
unsigned char *b = ((yaffs_TagsUnion *)tags)->asBytes;
unsigned i,j;
unsigned ecc = 0;
unsigned bit = 0;
// Clear ECC fields
if (!convert_endian)
{
tags->ecc = 0;
}
else
{
// Because we're in "munged tag" mode, we have to clear it manually
b[6] &= 0xC0;
b[7] &= 0x03;
}
for(i = 0; i < 8; i++)
{
// NCB modified 20-9-02 for(j = 1; j &0x7f; j<<=1)
for(j = 1; j &0xff; j<<=1)
{
bit++;
if(b[i] & j)
{
ecc ^= bit;
}
}
}
// Write out ECC
if (!convert_endian)
{
tags->ecc = ecc;
}
else
{
// We have to munge the ECC again.
b[6] |= ((ecc >> 6) & 0x3F);
b[7] |= ((ecc & 0x3F) << 2);
}
}
static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, yaffs_Tags *tagsPtr)
{
yaffs_TagsUnion *tu = (yaffs_TagsUnion *)tagsPtr;
//yaffs_CalcTagsECC(tagsPtr);
sparePtr->tagByte0 = tu->asBytes[0];
sparePtr->tagByte1 = tu->asBytes[1];
sparePtr->tagByte2 = tu->asBytes[2];
sparePtr->tagByte3 = tu->asBytes[3];
sparePtr->tagByte4 = tu->asBytes[4];
sparePtr->tagByte5 = tu->asBytes[5];
sparePtr->tagByte6 = tu->asBytes[6];
sparePtr->tagByte7 = tu->asBytes[7];
}
/* This little function converts a little endian tag to a big endian tag.
* NOTE: The tag is not usable after this other than calculating the CRC
* with.
*/
static void little_to_big_endian(yaffs_Tags *tagsPtr)
{
yaffs_TagsUnion * tags = (yaffs_TagsUnion* )tagsPtr; // Work in bytes.
yaffs_TagsUnion temp;
memset(&temp, 0, sizeof(temp));
// Ick, I hate magic numbers.
temp.asBytes[0] = ((tags->asBytes[2] & 0x0F) << 4) | ((tags->asBytes[1] & 0xF0) >> 4);
temp.asBytes[1] = ((tags->asBytes[1] & 0x0F) << 4) | ((tags->asBytes[0] & 0xF0) >> 4);
temp.asBytes[2] = ((tags->asBytes[0] & 0x0F) << 4) | ((tags->asBytes[2] & 0x30) >> 2) | ((tags->asBytes[3] & 0xC0) >> 6);
temp.asBytes[3] = ((tags->asBytes[3] & 0x3F) << 2) | ((tags->asBytes[2] & 0xC0) >> 6);
temp.asBytes[4] = ((tags->asBytes[6] & 0x03) << 6) | ((tags->asBytes[5] & 0xFC) >> 2);
temp.asBytes[5] = ((tags->asBytes[5] & 0x03) << 6) | ((tags->asBytes[4] & 0xFC) >> 2);
temp.asBytes[6] = ((tags->asBytes[4] & 0x03) << 6) | (tags->asBytes[7] & 0x3F);
temp.asBytes[7] = (tags->asBytes[6] & 0xFC) | ((tags->asBytes[7] & 0xC0) >> 6);
// Now copy it back.
tags->asBytes[0] = temp.asBytes[0];
tags->asBytes[1] = temp.asBytes[1];
tags->asBytes[2] = temp.asBytes[2];
tags->asBytes[3] = temp.asBytes[3];
tags->asBytes[4] = temp.asBytes[4];
tags->asBytes[5] = temp.asBytes[5];
tags->asBytes[6] = temp.asBytes[6];
tags->asBytes[7] = temp.asBytes[7];
}
static int write_chunk(__u8 *data, __u32 objId, __u32 chunkId, __u32 nBytes)
{
yaffs_Tags t;
yaffs_Spare s;
error = write(outFile,data,512);
if(error < 0) return error;
memset(&t,0xff,sizeof (yaffs_Tags));
memset(&s,0xff,sizeof (yaffs_Spare));
t.chunkId = chunkId;
t.serialNumber = 0;
t.byteCount = nBytes;
t.objectId = objId;
if (convert_endian)
{
little_to_big_endian(&t);
}
yaffs_CalcTagsECC(&t);
yaffs_LoadTagsIntoSpare(&s,&t);
yaffs_CalcECC(data,&s);
nPages++;
return write(outFile,&s,sizeof(yaffs_Spare));
}
#define SWAP32(x) ((((x) & 0x000000FF) << 24) | \
(((x) & 0x0000FF00) << 8 ) | \
(((x) & 0x00FF0000) >> 8 ) | \
(((x) & 0xFF000000) >> 24))
#define SWAP16(x) ((((x) & 0x00FF) << 8) | \
(((x) & 0xFF00) >> 8))
// This one is easier, since the types are more standard. No funky shifts here.
static void object_header_little_to_big_endian(yaffs_ObjectHeader* oh)
{
oh->type = SWAP32(oh->type); // GCC makes enums 32 bits.
oh->parentObjectId = SWAP32(oh->parentObjectId); // int
oh->sum__NoLongerUsed = SWAP16(oh->sum__NoLongerUsed); // __u16 - Not used, but done for completeness.
// name = skip. Char array. Not swapped.
oh->yst_mode = SWAP32(oh->yst_mode);
#ifdef CONFIG_YAFFS_WINCE // WinCE doesn't implement this, but we need to just in case.
// In fact, WinCE would be *THE* place where this would be an issue!
oh->notForWinCE[0] = SWAP32(oh->notForWinCE[0]);
oh->notForWinCE[1] = SWAP32(oh->notForWinCE[1]);
oh->notForWinCE[2] = SWAP32(oh->notForWinCE[2]);
oh->notForWinCE[3] = SWAP32(oh->notForWinCE[3]);
oh->notForWinCE[4] = SWAP32(oh->notForWinCE[4]);
#else
// Regular POSIX.
oh->yst_uid = SWAP32(oh->yst_uid);
oh->yst_gid = SWAP32(oh->yst_gid);
oh->yst_atime = SWAP32(oh->yst_atime);
oh->yst_mtime = SWAP32(oh->yst_mtime);
oh->yst_ctime = SWAP32(oh->yst_ctime);
#endif
oh->fileSize = SWAP32(oh->fileSize); // Aiee. An int... signed, at that!
oh->equivalentObjectId = SWAP32(oh->equivalentObjectId);
// alias - char array.
oh->yst_rdev = SWAP32(oh->yst_rdev);
#ifdef CONFIG_YAFFS_WINCE
oh->win_ctime[0] = SWAP32(oh->win_ctime[0]);
oh->win_ctime[1] = SWAP32(oh->win_ctime[1]);
oh->win_atime[0] = SWAP32(oh->win_atime[0]);
oh->win_atime[1] = SWAP32(oh->win_atime[1]);
oh->win_mtime[0] = SWAP32(oh->win_mtime[0]);
oh->win_mtime[1] = SWAP32(oh->win_mtime[1]);
oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
#else
oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]);
oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]);
oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]);
oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]);
oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]);
oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]);
oh->roomToGrow[6] = SWAP32(oh->roomToGrow[6]);
oh->roomToGrow[7] = SWAP32(oh->roomToGrow[7]);
oh->roomToGrow[8] = SWAP32(oh->roomToGrow[8]);
oh->roomToGrow[9] = SWAP32(oh->roomToGrow[9]);
oh->roomToGrow[10] = SWAP32(oh->roomToGrow[10]);
oh->roomToGrow[11] = SWAP32(oh->roomToGrow[11]);
#endif
}
static int write_object_header(int objId, yaffs_ObjectType t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias)
{
__u8 bytes[512];
yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *)bytes;
memset(bytes,0xff,512);
oh->type = t;
oh->parentObjectId = parent;
strncpy(oh->name,name,YAFFS_MAX_NAME_LENGTH);
if(t != YAFFS_OBJECT_TYPE_HARDLINK)
{
oh->yst_mode = s->st_mode;
oh->yst_uid = s->st_uid;
// NCB 12/9/02 oh->yst_gid = s->yst_uid;
oh->yst_gid = s->st_gid;
oh->yst_atime = s->st_atime;
oh->yst_mtime = s->st_mtime;
oh->yst_ctime = s->st_ctime;
oh->yst_rdev = s->st_rdev;
}
if(t == YAFFS_OBJECT_TYPE_FILE)
{
oh->fileSize = s->st_size;
}
if(t == YAFFS_OBJECT_TYPE_HARDLINK)
{
oh->equivalentObjectId = equivalentObj;
}
if(t == YAFFS_OBJECT_TYPE_SYMLINK)
{
strncpy(oh->alias,alias,YAFFS_MAX_ALIAS_LENGTH);
}
if (convert_endian)
{
object_header_little_to_big_endian(oh);
}
return write_chunk(bytes,objId,0,0xffff);
}
static int process_directory(int parent, const char *path)
{
DIR *dir;
struct dirent *entry;
nDirectories++;
dir = opendir(path);
if(dir)
{
while((entry = readdir(dir)) != NULL)
{
/* Ignore . and .. */
if(strcmp(entry->d_name,".") &&
strcmp(entry->d_name,".."))
{
char full_name[500];
struct stat stats;
int equivalentObj;
int newObj;
sprintf(full_name,"%s/%s",path,entry->d_name);
lstat(full_name,&stats);
if(S_ISLNK(stats.st_mode) ||
S_ISREG(stats.st_mode) ||
S_ISDIR(stats.st_mode) ||
S_ISFIFO(stats.st_mode) ||
S_ISBLK(stats.st_mode) ||
S_ISCHR(stats.st_mode) ||
S_ISSOCK(stats.st_mode))
{
newObj = obj_id++;
nObjects++;
printf("Object %d, %s is a ",newObj,full_name);
/* We're going to create an object for it */
if((equivalentObj = find_obj_in_list(stats.st_dev, stats.st_ino)) > 0)
{
/* we need to make a hard link */
printf("hard link to object %d\n",equivalentObj);
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_HARDLINK, &stats, parent, entry->d_name, equivalentObj, NULL);
}
else
{
add_obj_to_list(stats.st_dev,stats.st_ino,newObj);
if(S_ISLNK(stats.st_mode))
{
char symname[500];
memset(symname,0, sizeof(symname));
readlink(full_name,symname,sizeof(symname) -1);
printf("symlink to \"%s\"\n",symname);
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SYMLINK, &stats, parent, entry->d_name, -1, symname);
}
else if(S_ISREG(stats.st_mode))
{
printf("file, ");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_FILE, &stats, parent, entry->d_name, -1, NULL);
if(error >= 0)
{
int h;
__u8 bytes[512];
int nBytes;
int chunk = 0;
h = open(full_name,O_RDONLY);
if(h >= 0)
{
memset(bytes,0xff,512);
while((nBytes = read(h,bytes,512)) > 0)
{
chunk++;
write_chunk(bytes,newObj,chunk,nBytes);
memset(bytes,0xff,512);
}
if(nBytes < 0)
error = nBytes;
printf("%d data chunks written\n",chunk);
}
else
{
perror("Error opening file");
}
close(h);
}
}
else if(S_ISSOCK(stats.st_mode))
{
printf("socket\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISFIFO(stats.st_mode))
{
printf("fifo\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISCHR(stats.st_mode))
{
printf("character device\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISBLK(stats.st_mode))
{
printf("block device\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL);
}
else if(S_ISDIR(stats.st_mode))
{
printf("directory\n");
error = write_object_header(newObj, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, parent, entry->d_name, -1, NULL);
// NCB modified 10/9/2001 process_directory(1,full_name);
process_directory(newObj,full_name);
}
}
}
else
{
printf(" we don't handle this type\n");
}
}
}
}
return 0;
}
int main(int argc, char *argv[])
{
struct stat stats;
printf("mkyaffsimage: image building tool for YAFFS built "__DATE__"\n");
if(argc < 3)
{
printf("usage: mkyaffsimage dir image_file [convert]\n");
printf(" dir the directory tree to be converted\n");
printf(" image_file the output file to hold the image\n");
printf(" 'convert' produce a big-endian image from a little-endian machine\n");
exit(1);
}
if ((argc == 4) && (!strncmp(argv[3], "convert", strlen("convert"))))
{
convert_endian = 1;
}
if(stat(argv[1],&stats) < 0)
{
printf("Could not stat %s\n",argv[1]);
exit(1);
}
if(!S_ISDIR(stats.st_mode))
{
printf(" %s is not a directory\n",argv[1]);
exit(1);
}
outFile = open(argv[2],O_CREAT | O_TRUNC | O_WRONLY, S_IREAD | S_IWRITE);
if(outFile < 0)
{
printf("Could not open output file %s\n",argv[2]);
exit(1);
}
printf("Processing directory %s into image file %s\n",argv[1],argv[2]);
error = write_object_header(1, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, 1,"", -1, NULL);
if(error)
error = process_directory(YAFFS_OBJECTID_ROOT,argv[1]);
close(outFile);
if(error < 0)
{
perror("operation incomplete");
exit(1);
}
else
{
printf("Operation complete.\n"
"%d objects in %d directories\n"
"%d NAND pages\n",nObjects, nDirectories, nPages);
}
close(outFile);
exit(0);
}
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