From: Timothy Manning Date: Thu, 28 Oct 2010 00:06:41 +0000 (+1300) Subject: yaffs trying to recreate timothy_tests after I deleated them. X-Git-Tag: linux-mainline-patchset-4~131 X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=fb0f30458af252479d15e457443e36320d8355f7;hp=5409719091c79983abc45bcc3070bce6786c8278;ds=sidebyside yaffs trying to recreate timothy_tests after I deleated them. Signed-off-by: Timothy Manning --- diff --git a/direct/timothy_tests/EACCES_bug/README.txt b/direct/timothy_tests/EACCES_bug/README.txt new file mode 100644 index 0000000..f61011f --- /dev/null +++ b/direct/timothy_tests/EACCES_bug/README.txt @@ -0,0 +1,3 @@ + +This program tries to open a new file in yaffs. The yaffs_open() function returns a -1 handle and gives an error of EACCES. +This bug only seems to happen when the emfile has a lot of files in it. diff --git a/direct/timothy_tests/dev/Makefile b/direct/timothy_tests/dev/Makefile new file mode 100644 index 0000000..672a33f --- /dev/null +++ b/direct/timothy_tests/dev/Makefile @@ -0,0 +1,103 @@ +# Makefile for YAFFS direct stress tests +# +# +# YAFFS: Yet another Flash File System. A NAND-flash specific file system. +# +# Copyright (C) 2003-2010 Aleph One Ltd. +# +# +# Created by Charles Manning +# +# 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. +# +# NB Warning this Makefile does not include header dependencies. +# +# $Id: Makefile,v 1.7 2010-02-25 22:34:47 charles Exp $ + +#EXTRA_COMPILE_FLAGS = -DYAFFS_IGNORE_TAGS_ECC + +CFLAGS = -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -DCONFIG_YAFFS_YAFFS2 +CFLAGS += -DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES +CFLAGS += -Wall -g $(EXTRA_COMPILE_FLAGS) -Wstrict-aliasing +#CFLAGS += -fno-strict-aliasing +CFLAGS += -O0 +CFLAGS += -Wextra -Wpointer-arith +#CFLAGS += -DCONFIG_YAFFS_VALGRIND_TEST + +#CFLAGS+= -Wshadow -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Wmissing-declarations +#CFLAGS+= -Wmissing-prototypes -Wredundant-decls -Wnested-externs -Winline + + +COMMONTESTOBJS = yaffscfg2k.o yaffs_ecc.o yaffs_fileem.o yaffs_fileem2k.o yaffsfs.o yaffs_guts.o \ + yaffs_packedtags1.o yaffs_ramdisk.o yaffs_ramem2k.o \ + yaffs_tagscompat.o yaffs_packedtags2.o yaffs_tagsvalidity.o yaffs_nand.o \ + yaffs_checkptrw.o yaffs_qsort.o\ + yaffs_nameval.o \ + yaffs_norif1.o ynorsim.o \ + yaffs_allocator.o \ + yaffs_bitmap.o \ + yaffs_yaffs1.o \ + yaffs_yaffs2.o \ + yaffs_verify.o + +# yaffs_checkptrwtest.o\ + +YAFFSTESTOBJS = $(COMMONTESTOBJS) yaffs_tester.o message_buffer.o error_handler.o + + +ALLOBJS = $(sort $(YAFFSTESTOBJS)) + +YAFFSSYMLINKS = devextras.h yaffs_ecc.c yaffs_ecc.h yaffs_guts.c yaffs_guts.h yaffsinterface.h yportenv.h yaffs_tagscompat.c yaffs_tagscompat.h \ + yaffs_packedtags1.c yaffs_packedtags1.h yaffs_packedtags2.c yaffs_packedtags2.h yaffs_nandemul2k.h \ + yaffs_nand.c yaffs_nand.h yaffs_getblockinfo.h yaffs_list.h \ + yaffs_tagsvalidity.c yaffs_tagsvalidity.h yaffs_checkptrw.h yaffs_checkptrw.c \ + yaffs_nameval.c yaffs_nameval.h \ + yaffs_qsort.c yaffs_qsort.h yaffs_trace.h \ + yaffs_allocator.c yaffs_allocator.h \ + yaffs_yaffs1.c yaffs_yaffs1.h \ + yaffs_yaffs2.c yaffs_yaffs2.h \ + yaffs_bitmap.c yaffs_bitmap.h \ + yaffs_verify.c yaffs_verify.h + +YAFFSDIRECTSYMLINKS = yaffsfs.c yaffs_flashif.h yaffs_flashif2.h\ + yaffsfs.h yaffs_malloc.h ydirectenv.h \ + yaffs_flashif.c yaffscfg.h \ + yaffs_nandif.c yaffs_nandif.h + + +DIRECTEXTRASYMLINKS = yaffscfg2k.c yaffs_fileem2k.c yaffs_fileem2k.h\ + yaffs_fileem.c yaffs_norif1.c yaffs_norif1.h \ + yaffs_ramdisk.c yaffs_ramdisk.h yaffs_ramem2k.c \ + ynorsim.h ynorsim.c + +SYMLINKS = $(YAFFSSYMLINKS) $(YAFFSDIRECTSYMLINKS) $(DIRECTEXTRASYMLINKS) +#all: directtest2k boottest + +all: yaffs_tester + +$(ALLOBJS): %.o: %.c + gcc -c $(CFLAGS) -o $@ $< + + +$(YAFFSSYMLINKS): + ln -s ../../../$@ $@ + +$(YAFFSDIRECTSYMLINKS): + ln -s ../../$@ $@ + +$(DIRECTEXTRASYMLINKS): + ln -s ../../basic-test/$@ $@ + + +yaffs_tester: $(SYMLINKS) $(YAFFSTESTOBJS) + gcc $(CFLLAG) -o $@ $(YAFFSTESTOBJS) + + + + + + +clean: + rm -f yaffs_tester $(ALLOBJS) core $(SYMLINKS) log.txt diff --git a/direct/timothy_tests/dev/error_handler.c b/direct/timothy_tests/dev/error_handler.c new file mode 100644 index 0000000..1dd2729 --- /dev/null +++ b/direct/timothy_tests/dev/error_handler.c @@ -0,0 +1,84 @@ +/* + * YAFFS: Yet another FFS. A NAND-flash specific file system. + * + * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Timothy Manning + * + * 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. + */ + +/* + * error_handler.c contains code for checking yaffs function calls for errors. + */ +#include "error_handler.h" + + +typedef struct error_codes_template { + int code; + char * text; +}error_entry; + +const error_entry error_list[] = { + { ENOMEM , "ENOMEM" }, + { EBUSY , "EBUSY"}, + { ENODEV , "ENODEV"}, + { EINVAL , "EINVAL"}, + { EBADF , "EBADF"}, + { EACCES , "EACCES"}, + { EXDEV , "EXDEV" }, + { ENOENT , "ENOENT"}, + { ENOSPC , "ENOSPC"}, + { ERANGE , "ERANGE"}, + { ENODATA, "ENODATA"}, + { ENOTEMPTY, "ENOTEMPTY"}, + { ENAMETOOLONG,"ENAMETOOLONG"}, + { ENOMEM , "ENOMEM"}, + { EEXIST , "EEXIST"}, + { ENOTDIR , "ENOTDIR"}, + { EISDIR , "EISDIR"}, + { 0, NULL } +}; + +const char * error_to_str(int err) +{ + error_entry *e = error_list; + if (err < 0) + err = -err; + while(e->code && e->text){ + if(err == e->code) + return e->text; + e++; + } + return "Unknown error code"; +} + +void yaffs_check_for_errors(char output, buffer *message_buffer,char error_message[],char success_message[]){ + char dummy[10]; + unsigned int x=0; + int yaffs_error=-1; + char error_found=0; + if (output==-1) + { + add_to_buffer(message_buffer, "\nerror##########",MESSAGE_LEVEL_ERROR,PRINT); + add_to_buffer(message_buffer, error_message,MESSAGE_LEVEL_ERROR,PRINT); + add_to_buffer(message_buffer, "error_code: ",MESSAGE_LEVEL_ERROR,NPRINT); + yaffs_error=yaffs_get_error(); + append_int_to_buffer(message_buffer, yaffs_error,MESSAGE_LEVEL_ERROR,PRINT); + + add_to_buffer(message_buffer, error_to_str(yaffs_error),MESSAGE_LEVEL_ERROR,NPRINT); + append_to_buffer(message_buffer, "\n\n",MESSAGE_LEVEL_ERROR,PRINT); + quit_program(); + //scanf("%c",dummy); /*this line causes a segmentation fault. Need a better way of waiting for a key press*/ + //print_buffer(message_buffer,PRINT_ALL); + + } + else{ + add_to_buffer(message_buffer, success_message,MESSAGE_LEVEL_BASIC_TASKS,PRINT); + } +} + + diff --git a/direct/timothy_tests/dev/error_handler.h b/direct/timothy_tests/dev/error_handler.h new file mode 100644 index 0000000..c07fdff --- /dev/null +++ b/direct/timothy_tests/dev/error_handler.h @@ -0,0 +1,23 @@ +/* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * + * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Timothy Manning + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 2.1 as + * published by the Free Software Foundation. + * + * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. + */ + +#ifndef __error_handler_h__ +#define __error_handler_h__ +#include +#include "message_buffer.h" +#include "yaffsfs.h" +#define DEBUG_LEVEL 5 /*set the debug level. this is used to display the relevent debug messages*/ +void yaffs_check_for_errors(char output, buffer *message_buffer, char error_message[], char success_message[]); +#endif diff --git a/direct/timothy_tests/dev/message_buffer.c b/direct/timothy_tests/dev/message_buffer.c new file mode 100644 index 0000000..1ff21e0 --- /dev/null +++ b/direct/timothy_tests/dev/message_buffer.c @@ -0,0 +1,112 @@ +/* + * YAFFS: Yet another FFS. A NAND-flash specific file system. + * + * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Timothy Manning + * + * 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. + */ + +/* + * message_buffer.c contains code for a message buffer . + */ + +#include "message_buffer.h" + +void append_to_buffer(buffer *p_Buffer, char *message,char message_level,char print){ + /*wrapper function for add_to_buffer_root_function*/ + add_to_buffer_root_function(p_Buffer,message, message_level,APPEND_MESSAGE,print); +} + +void add_to_buffer(buffer *p_Buffer, char *message,char message_level,char print){ + /*wrapper function for add_to_buffer_root_function*/ + add_to_buffer_root_function(p_Buffer,message, message_level,DO_NOT_APPEND_MESSAGE,print); +} + +void add_int_to_buffer(buffer *p_Buffer, int num,char message_level,char print){ + char message[20]; + sprintf(message, "%d",num); + add_to_buffer_root_function(p_Buffer,message, message_level,DO_NOT_APPEND_MESSAGE,print); +} + +void append_int_to_buffer(buffer *p_Buffer, int num,char message_level,char print){ + char message[20]; + sprintf(message, "%d",num); + add_to_buffer_root_function(p_Buffer,message, message_level,APPEND_MESSAGE,print); +} + + +void add_to_buffer_root_function(buffer *p_Buffer, char *message,char message_level,char append,char print){ + FILE *log_handle; + + if (append==APPEND_MESSAGE){ /* append current message*/ + strncat(p_Buffer->message[p_Buffer->head],message,BUFFER_MESSAGE_LENGTH); + } + else { + + /*move the head up one. the head always points at the last written data*/ + p_Buffer->head++; + + /*printf("p_Buffer->tail=%d\n",p_Buffer->tail);*/ + /*printf("p_Buffer->head=%d\n",p_Buffer->head);*/ + if (p_Buffer->head >=BUFFER_SIZE-1) { + /*printf("buffer overflow\n");*/ + p_Buffer->head -= (BUFFER_SIZE-1); /*wrap the head around the buffer*/ + /*printf("new p_Buffer->head=%d\n",p_Buffer->head);*/ + } + /*if the buffer is full then delete last entry by moving the tail*/ + if (p_Buffer->head==p_Buffer->tail){ + /*printf("moving buffer tail from %d to ",p_Buffer->tail);*/ + p_Buffer->tail++; + if (p_Buffer->tail >=BUFFER_SIZE) p_Buffer->tail -= BUFFER_SIZE;/*wrap the tail around the buffer*/ + /*printf("%d\n",p_Buffer->tail);*/ + + } + + p_Buffer->message_level[p_Buffer->head]=message_level; /*copy the message level*/ + strncpy(p_Buffer->message[p_Buffer->head],message,BUFFER_MESSAGE_LENGTH); /*copy the message*/ + /*printf("copied %s into p_Buffer->message[p_Buffer->head]: %s\n",message,p_Buffer->message[p_Buffer->head]); + printf("extra %s\n",p_Buffer->message[p_Buffer->head]);*/ + } + if ((p_Buffer->message_level[p_Buffer->head]<=DEBUG_LEVEL)&& (print==PRINT)){ + /*printf("printing buffer 1\n"); + // the print buffer function is not working this is just a quick fix + print_buffer(p_Buffer,1); //if the debug level is higher enough then print the new message + */ + printf("%s\n",p_Buffer->message[p_Buffer->head]); + log_handle=fopen(LOG_FILE,"a"); + if (log_handle!=NULL){ + fputs(p_Buffer->message[p_Buffer->head],log_handle); + fputs("\n",log_handle); + fclose(log_handle); + } + } +} + + + +void print_buffer(buffer *p_Buffer, int number_of_messages_to_print){ + int x=0; + int i=0; + printf("print buffer\n"); + printf("buffer head:%d\n",p_Buffer->head); + printf("buffer tail:%d\n",p_Buffer->tail); + + if (number_of_messages_to_print==PRINT_ALL) number_of_messages_to_print=BUFFER_SIZE; +// printf("number_of_messages_to_print=%d\n",number_of_messages_to_print); + for (i=0,x=0; (x>=p_Buffer->tail) && (imessage[p_Buffer->head]); + printf("printed buffer\n"); + } + +} + + + diff --git a/direct/timothy_tests/dev/message_buffer.h b/direct/timothy_tests/dev/message_buffer.h new file mode 100644 index 0000000..2f7984f --- /dev/null +++ b/direct/timothy_tests/dev/message_buffer.h @@ -0,0 +1,49 @@ +/* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * + * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Timothy Manning + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 2.1 as + * published by the Free Software Foundation. + * + * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. + */ + +#ifndef __message_buffer__ +#define __message_buffer__ + +#include +#include +#define PRINT 1 +#define NPRINT 0 +#define APPEND_MESSAGE 1 +#define DO_NOT_APPEND_MESSAGE 0 +#define PRINT_ALL -1 /*this is used to print all of the messages in a buffer*/ +#define BUFFER_MESSAGE_LENGTH 60 /*number of char in message*/ +#define BUFFER_SIZE 50 /*number of messages in buffer*/ +#define MESSAGE_LEVEL_ERROR 0 +#define MESSAGE_LEVEL_BASIC_TASKS 1 + +#define LOG_FILE "log.txt" +typedef struct buffer_template{ + char message[BUFFER_SIZE][BUFFER_MESSAGE_LENGTH]; + int head; + int tail; + char message_level[BUFFER_SIZE]; +}buffer; +#include "error_handler.h" /*include this for the debug level*/ + + +void print_buffer(buffer *p_Buffer,int number_of_messages_to_print); /*print messages in the buffer*/ +/*wrapper functions for add_to_buffer_root_function*/ +void add_to_buffer(buffer *p_Buffer, char *message,char message_level,char print); +void append_to_buffer(buffer *p_Buffer, char *message,char message_level,char print); +void add_int_to_buffer(buffer *p_Buffer, int num,char message_level,char print); +void append_int_to_buffer(buffer *p_Buffer, int num,char message_level,char print); + +void add_to_buffer_root_function(buffer *p_Buffer, char *message,char message_level,char append,char print); +#endif diff --git a/direct/timothy_tests/dev/yaffs_tester.c b/direct/timothy_tests/dev/yaffs_tester.c new file mode 100644 index 0000000..7f70731 --- /dev/null +++ b/direct/timothy_tests/dev/yaffs_tester.c @@ -0,0 +1,342 @@ +/* + * YAFFS: Yet another FFS. A NAND-flash specific file system. + * + * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Timothy Manning + * + * 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. + */ + +/* + * yaffs_tester.c designed to stress test yaffs2 direct. + */ + + +#include "yaffs_tester.h" + + + +int random_seed; +int simulate_power_failure = 0; + + +buffer message_buffer; /*create message_buffer */ + +char yaffs_test_dir[] ="/yaffs2/test_dir"; /*the path to the directory where all of the testing will take place*/ +char yaffs_mount_dir[]="/yaffs2/"; /*the path to the mount point which yaffs will mount*/ + + +int main(int argc, char *argv[]){ + + + init(yaffs_test_dir,yaffs_mount_dir,argc,argv); + test(yaffs_test_dir); + yaffs_unmount(yaffs_mount_dir); + return 0; +} + + + +void init(char *yaffs_test_dir,char *yaffs_mount_dir,int argc, char *argv[]){ + char output=0; + int x=0; + int seed=-1; + FILE *log_handle; + /*these variables are already set to zero, but it is better not to take chances*/ + message_buffer.head=0; + message_buffer.tail=0; + + + log_handle=fopen(LOG_FILE,"w"); + if (log_handle!=NULL){ + fputs("log file for yaffs tester\n",log_handle); + fclose(log_handle); + } + add_to_buffer(&message_buffer,"welcome to the yaffs tester",MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/ + yaffs_start_up(); + yaffs_mount(yaffs_mount_dir); + for (x=0;xnumber_of_open_handles,MESSAGE_LEVEL_BASIC_TASKS,PRINT); + if (P_open_handles_array->number_of_open_handleshandle[x]!=-3 && xhandle[x]=output; + P_open_handles_array->path[x][0]='\0'; + strcat(P_open_handles_array->path[x],path); + add_to_buffer(&message_buffer,"yaffs handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,output,MESSAGE_LEVEL_BASIC_TASKS,PRINT); + add_to_buffer(&message_buffer,"stored handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + + //yaffs_open will return a null pointer if it cannot open a file. check for errors will not work. + yaffs_check_for_errors(output, &message_buffer,"failed to open file","opened file"); + + P_open_handles_array->number_of_open_handles++; + } + else close_random_file(P_open_handles_array); + +} + +void write_to_random_file(handle_regster *P_open_handles_array){ + int number_of_lines_of_text=0; + int length=100; + char text[length+1]; + text[0]='\0'; + int seek=0; + int x=0; + int output=0; + if (P_open_handles_array->number_of_open_handles>0){ + + while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/ + x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1); + } + add_to_buffer(&message_buffer,"\n\ntrying to write to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT); + + stat_file(P_open_handles_array->path[x]); + number_of_lines_of_text=rand() %1000; + add_to_buffer(&message_buffer,"writing ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,number_of_lines_of_text,MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_to_buffer(&message_buffer," lines of text",MESSAGE_LEVEL_BASIC_TASKS,PRINT); + + + for (;number_of_lines_of_text>0;number_of_lines_of_text--) + { + generate_random_string(text,length); + seek=rand()%1000; + add_to_buffer(&message_buffer,"trying to seek to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,seek,MESSAGE_LEVEL_BASIC_TASKS,PRINT); + output=yaffs_lseek(P_open_handles_array->handle[x],seek,SEEK_SET); + yaffs_check_for_errors(output, &message_buffer,"failed to seek","seeked file"); + add_to_buffer(&message_buffer,"trying to write to file",MESSAGE_LEVEL_BASIC_TASKS,PRINT); + output=yaffs_write(P_open_handles_array->handle[x], text, strlen(text)); + yaffs_check_for_errors(output, &message_buffer,"failed to write text","wrote text"); + + } + } +} + +void close_random_file(handle_regster *P_open_handles_array){ + /*run out of space on the handle pointer array*/ + /*make space*/ + int x=0; + int output=0; + while (P_open_handles_array->handle[x]==-3){ + x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1); + } + add_to_buffer(&message_buffer,"\n\ntrying to close file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT); + add_to_buffer(&message_buffer,"file handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,P_open_handles_array->handle[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT); + + stat_file(P_open_handles_array->path[x]); + output=yaffs_close(P_open_handles_array->handle[x]); + + if (output==-1) yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file"); + else { + yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file"); + P_open_handles_array->handle[x]=-3; + P_open_handles_array->path[x][0]='\0'; + P_open_handles_array->number_of_open_handles--; + } +} + +void stat_file(char *path){ + int output=0; + struct yaffs_stat stat; + if (yaffs_access(path,0)==0){ + add_to_buffer(&message_buffer,"file exists, trying to stat: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT); + output=yaffs_lstat(path,&stat); + yaffs_check_for_errors(output, &message_buffer,"failed to stat file","statted file"); + //stat.st_ino,(int)stat.st_size,stat.st_mode + add_to_buffer(&message_buffer,"yaffs inode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,stat.st_ino,MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_to_buffer(&message_buffer," file size: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,(int)stat.st_size,MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_to_buffer(&message_buffer," file mode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_int_to_buffer(&message_buffer,stat.st_mode,MESSAGE_LEVEL_BASIC_TASKS,PRINT); + } + else{ + add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,NPRINT); + append_to_buffer(&message_buffer," does not exist,could not stat",MESSAGE_LEVEL_BASIC_TASKS,PRINT); + } +} + +void test(char*yaffs_test_dir){ + struct yaffs_stat stat; + int output=0; + //char name[MAX_FILE_NAME_SIZE+3 ]="apple\0"; + //char path[MAX_FILE_NAME_SIZE]; + handle_regster open_handles_array; + //int handle_pointers[MAX_NUMBER_OF_OPENED_HANDLES]; + //int number_of_opened_handles=0; + int x=0; + + + open_handles_array.number_of_open_handles=0; + for (x=0;x2 ; x++) + { + //printf("x=%d\n",x); + /* keep generating a charecter until the charecter is legal*/ + while((letter=='\0' )||(letter=='/')||(letter=='\\')){ + letter=(rand() % 126-32)+32; /*generate a number between 32 and 126 and uses it as a charecter (letter) */ + } + ptr[x]=letter; + //printf("charecter generated is %c\n",ptr[x]); + } + ptr[x+1]='\0'; /*adds NULL charecter to turn it into a string*/ + +} + diff --git a/direct/timothy_tests/dev/yaffs_tester.h b/direct/timothy_tests/dev/yaffs_tester.h new file mode 100644 index 0000000..32c9f28 --- /dev/null +++ b/direct/timothy_tests/dev/yaffs_tester.h @@ -0,0 +1,47 @@ +/* + * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * + * Copyright (C) 2002-2010 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Timothy Manning + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 2.1 as + * published by the Free Software Foundation. + * + * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. + */ + +#ifndef __YAFFS_TESTER_H__ + #define __YAFFS_TESTER_H__ + +#include +#include +#include +#include + +#include "yaffsfs.h" /* it is in "yaffs2/direct/" link it in the Makefile */ +#include "message_buffer.h" +#include "error_handler.h" + +#define MAX_NUMBER_OF_OPENED_HANDLES 50 +#define MAX_FILE_NAME_SIZE 51 + +typedef struct handle_regster_template{ + int handle[MAX_NUMBER_OF_OPENED_HANDLES]; + char path[MAX_NUMBER_OF_OPENED_HANDLES][100]; + int number_of_open_handles; +}handle_regster; + + +void init(char *yaffs_test_dir,char *yaffs_mount_dir,int argc, char *argv[]); /*sets up yaffs and mounts yaffs */ +void test(char *yaffs_test_dir); /*contains the test code*/ +void generate_random_string(char *ptr,int length_of_str); /*generates a random string of letters to be used for a name*/ +void join_paths(char *path1,char *path2,char *newpath ); +void copy_array(char *from,char *to, unsigned int from_offset,unsigned int to_offset); +void stat_file(char *path); +void write_to_random_file(handle_regster *P_open_handles_array); +void close_random_file(handle_regster *P_open_handles_array); +void quit_program(); +#endif diff --git a/direct/timothy_tests/found_bugs.txt b/direct/timothy_tests/found_bugs.txt new file mode 100644 index 0000000..e24443c --- /dev/null +++ b/direct/timothy_tests/found_bugs.txt @@ -0,0 +1,58 @@ +Found bugs in yaffs + +Error code 0 bug (run out of handles) + By opening lots of files and not closing them yaffs can run out of handles. + The error code given by yaffs_get_error() returns 0. this error is not defined in yportenv.h + + +ENOENT error is generated when opening a new file with O_CREATE. + This should not be happening and has been logged as an error. + To regenerate this error remove the emfile and use the seed 1288064149 + +EACCES error + This program tries to open a new file in yaffs. The yaffs_open() function returns a -1 handle and gives an error of EACCES. + This bug only seems to happen when the emfile has a lot of files in it. + +Mkdir with slash error + Yaffs' mkdir function will not work if the path ends in a slash. + i.e. /yaffs2/new_dir/ + This is a known bug and is not likely to be fixed. + To get around this bug remove the slash on the end. + i.e. /yaffs2/new_dir + + + +BUG in yaffs caused by the program yaffs_importer.py in /direct/python/ + when the emfile is full yaffs gives these errors when trying to open a file: + +('adding path ', '/yaffs2/', ' to ', 'yaffs2/direct/basic-test/yaffs_tagscompat.o', ' resulting path: ', '/yaffs2/yaffs2/direct/basic-test/yaffs_tagscompat.o') +('creating file:', '/yaffs2/yaffs2/direct/basic-test/yaffs_tagscompat.o') +('mode', 33188) +opening file +erase block 248 +('current_handle', -1) +yaffs free space: 0 +yaffs is out of space exiting program +error with yaffs lseeking +error###################################### +('error code', -9) +error message EBADF +('length of data to be written', 25944) +('error writing file:', -1) +error###################################### +('error code', -9) +error message EBADF +('error truncating file:', -1) +error###################################### +('error code', -9) +error message EBADF +('error closing file:', -1) +error###################################### +('error code', -9) +error message EBADF +('error chmoding file:', -1) +error###################################### +('error code', -2) +error message ENOENT + + yaffs should be giving a no memory error insted of a EBADF. diff --git a/direct/timothy_tests/mkdir_with_slash_error/README.txt b/direct/timothy_tests/mkdir_with_slash_error/README.txt new file mode 100644 index 0000000..3b6e46e --- /dev/null +++ b/direct/timothy_tests/mkdir_with_slash_error/README.txt @@ -0,0 +1,12 @@ +Yaffs bug + +Yaffs' mkdir function will not work if the path ends in a slash. +i.e. /yaffs2/new_dir/ +This bug is known and is not likely to be fixed. +To get around this bug remove the slash on the end. +i.e. /yaffs2/new_dir + +Running the program with any seed will work. +./yaffs_tester + + diff --git a/direct/timothy_tests/opening_file_ENOENT/README.txt b/direct/timothy_tests/opening_file_ENOENT/README.txt new file mode 100644 index 0000000..d7b0334 --- /dev/null +++ b/direct/timothy_tests/opening_file_ENOENT/README.txt @@ -0,0 +1,8 @@ +This directory "freezes" the yaffs_tester programs in the state in which they produce a specific bug. + +ENOENT error is generated when opening a new file with O_CREATE. +This should not be happening and has been logged as an error. +To regenerate this error remove the emfile and use the seed 1288064149 + +./yaffs_tester -seed 1288064149 +For more information on this bug see the error_log.txt file