Add toolkit that helps adding prefix to flags and errno V2.

prefix_patch/ext4_errno.patch

@@ -1,11 +1,12 @@
---- include/ext4_errno.h	2016-01-25 09:51:20.605385376 +0000
-+++ include/ext4_errno.h	2016-01-25 09:19:09.410384455 +0000
-@@ -43,47 +43,95 @@ extern "C" {
+diff --git a/include/ext4_errno.h b/include/ext4_errno.h
+index edf89a9..60a3472 100644
+--- a/include/ext4_errno.h
++++ b/include/ext4_errno.h
+@@ -43,46 +43,74 @@ extern "C" {
  #include "ext4_config.h"
  
  #if !CONFIG_HAVE_OWN_ERRNO
-+
- #include <errno.h>
+-#include <errno.h>
 -#else
 -#define EPERM 1      /* Operation not permitted */
 -#define ENOENT 2     /* No such file or directory */
@@ -29,96 +30,86 @@
 -#define ENODATA 61   /* No data available */
 -#define ENOTSUP 95   /* Not supported */
 -#endif
-+
-+#define LWEXT4_EPERM EPERM      /* Operation not permitted */
-+#define LWEXT4_ENOENT ENOENT     /* No such file or directory */
-+#define LWEXT4_EIO EIO        /* I/O error */
-+#define LWEXT4_ENXIO ENXIO      /* No such device or address */
-+#define LWEXT4_E2BIG E2BIG      /* Argument list too long */
-+#define LWEXT4_ENOMEM ENOMEM    /* Out of memory */
-+#define LWEXT4_EACCES EACCES    /* Permission denied */
-+#define LWEXT4_EFAULT EFAULT    /* Bad address */
-+#define LWEXT4_EEXIST EEXIST    /* File exists */
-+#define LWEXT4_ENODEV ENODEV    /* No such device */
-+#define LWEXT4_ENOTDIR ENOTDIR   /* Not a directory */
-+#define LWEXT4_EISDIR EISDIR    /* Is a directory */
-+#define LWEXT4_EINVAL EINVAL    /* Invalid argument */
-+#define LWEXT4_EFBIG EFBIG     /* File too large */
-+#define LWEXT4_ENOSPC ENOSPC    /* No space left on device */
-+#define LWEXT4_EROFS EROFS     /* Read-only file system */
-+#define LWEXT4_EMLINK EMLINK    /* Too many links */
-+#define LWEXT4_ERANGE ERANGE    /* Math result not representable */
-+#define LWEXT4_ENOTEMPTY ENOTEMPTY /* Directory not empty */
  
- #ifndef ENODATA
-  #ifdef ENOATTR
+-#ifndef ENODATA
+- #ifdef ENOATTR
 - #define ENODATA ENOATTR
-+ #define LWEXT4_ENODATA ENOATTR
-  #else
+- #else
 - #define ENODATA 61
-+ #define LWEXT4_ENODATA 61
++ #include <errno.h>
++
++ #define LWEXT4_ERRNO(errno) (errno)
++
++ #ifndef ENODATA
++  #ifdef ENOATTR
++   #define ENOATTR ENOATTR
++  #else
++   #define ENODATA 61
++  #endif
   #endif
-+#else
-+#define LWEXT4_ENODATA ENODATA
- #endif
+-#endif
  
- #ifndef ENOTSUP
+-#ifndef ENOTSUP
 -#define ENOTSUP 95
-+#define LWEXT4_ENOTSUP 95
-+#else
-+#define LWEXT4_ENOTSUP ENOTSUP
- #endif
- 
- #ifndef EOK
- #define EOK 0
- #endif
- 
-+#define LWEXT4_EOK EOK
+-#endif
++ #ifndef ENOTSUP
++  #define ENOTSUP 95
++ #endif
 +
-+#else /* CONFIG_HAVE_OWN_ERRNO */
++ #ifndef EOK
++  #define EOK 0
++ #endif
 +
-+#define LWEXT4_EOK 0
-+#define LWEXT4_EPERM 1      /* Operation not permitted */
-+#define LWEXT4_ENOENT 2     /* No such file or directory */
-+#define LWEXT4_ESRCH 3      /* No such process */
-+#define LWEXT4_EINTR 4      /* Interrupted system call */
-+#define LWEXT4_EIO 5        /* I/O error */
-+#define LWEXT4_ENXIO 6      /* No such device or address */
-+#define LWEXT4_E2BIG 7      /* Argument list too long */
-+#define LWEXT4_ENOEXEC 8    /* Exec format error */
-+#define LWEXT4_EBADF 9      /* Bad file number */
-+#define LWEXT4_ECHILD 10    /* No child processes */
-+#define LWEXT4_EAGAIN 11    /* Try again */
-+#define LWEXT4_ENOMEM 12    /* Out of memory */
-+#define LWEXT4_EACCES 13    /* Permission denied */
-+#define LWEXT4_EFAULT 14    /* Bad address */
-+#define LWEXT4_ENOTBLK 15   /* Block device required */
-+#define LWEXT4_EBUSY 16     /* Device or resource busy */
-+#define LWEXT4_EEXIST 17    /* File exists */
-+#define LWEXT4_EXDEV 18     /* Cross-device link */
-+#define LWEXT4_ENODEV 19    /* No such device */
-+#define LWEXT4_ENOTDIR 20   /* Not a directory */
-+#define LWEXT4_EISDIR 21    /* Is a directory */
-+#define LWEXT4_EINVAL 22    /* Invalid argument */
-+#define LWEXT4_ENFILE 23    /* File table overflow */
-+#define LWEXT4_EMFILE 24    /* Too many open files */
-+#define LWEXT4_ENOTTY 25    /* Not a typewriter */
-+#define LWEXT4_ETXTBSY 26   /* Text file busy */
-+#define LWEXT4_EFBIG 27     /* File too large */
-+#define LWEXT4_ENOSPC 28    /* No space left on device */
-+#define LWEXT4_ESPIPE 29    /* Illegal seek */
-+#define LWEXT4_EROFS 30     /* Read-only file system */
-+#define LWEXT4_EMLINK 31    /* Too many links */
-+#define LWEXT4_EPIPE 32     /* Broken pipe */
-+#define LWEXT4_EDOM 33      /* Math argument out of domain of func */
-+#define LWEXT4_ERANGE 34    /* Math result not representable */
-+#define LWEXT4_ENOTEMPTY 39 /* Directory not empty */
-+#define LWEXT4_ENODATA 61   /* No data available */
-+#define LWEXT4_ENOTSUP 95   /* Not supported */
++#else /* CONFIG_HAVE_OWN_ERRNO */
 +
-+#endif /* CONFIG_HAVE_OWN_ERRNO */
++ #define LWEXT4_ERRNO(errno) (LWEXT4_##errno)
 +
++ enum ext4_errno {
++ 	LWEXT4_ERRNO(EOK) = 0
++ 	LWEXT4_ERRNO(EPERM) = 1      /* Operation not permitted */
++ 	LWEXT4_ERRNO(ENOENT) = 2     /* No such file or directory */
++ 	LWEXT4_ERRNO(ESRCH) = 3      /* No such process */
++ 	LWEXT4_ERRNO(EINTR) = 4      /* Interrupted system call */
++ 	LWEXT4_ERRNO(EIO) = 5        /* I/O error */
++ 	LWEXT4_ERRNO(ENXIO) = 6      /* No such device or address */
++ 	LWEXT4_ERRNO(E2BIG) = 7      /* Argument list too long */
++ 	LWEXT4_ERRNO(ENOEXEC) = 8    /* Exec format error */
++ 	LWEXT4_ERRNO(EBADF) = 9      /* Bad file number */
++ 	LWEXT4_ERRNO(ECHILD) = 10    /* No child processes */
++ 	LWEXT4_ERRNO(EAGAIN) = 11    /* Try again */
++ 	LWEXT4_ERRNO(ENOMEM) = 12    /* Out of memory */
++ 	LWEXT4_ERRNO(EACCES) = 13    /* Permission denied */
++ 	LWEXT4_ERRNO(EFAULT) = 14    /* Bad address */
++ 	LWEXT4_ERRNO(ENOTBLK) = 15   /* Block device required */
++ 	LWEXT4_ERRNO(EBUSY) = 16     /* Device or resource busy */
++ 	LWEXT4_ERRNO(EEXIST) = 17    /* File exists */
++ 	LWEXT4_ERRNO(EXDEV) = 18     /* Cross-device link */
++ 	LWEXT4_ERRNO(ENODEV) = 19    /* No such device */
++ 	LWEXT4_ERRNO(ENOTDIR) = 20   /* Not a directory */
++ 	LWEXT4_ERRNO(EISDIR) = 21    /* Is a directory */
++ 	LWEXT4_ERRNO(EINVAL) = 22    /* Invalid argument */
++ 	LWEXT4_ERRNO(ENFILE) = 23    /* File table overflow */
++ 	LWEXT4_ERRNO(EMFILE) = 24    /* Too many open files */
++ 	LWEXT4_ERRNO(ENOTTY) = 25    /* Not a typewriter */
++ 	LWEXT4_ERRNO(ETXTBSY) = 26   /* Text file busy */
++ 	LWEXT4_ERRNO(EFBIG) = 27     /* File too large */
++ 	LWEXT4_ERRNO(ENOSPC) = 28    /* No space left on device */
++ 	LWEXT4_ERRNO(ESPIPE) = 29    /* Illegal seek */
++ 	LWEXT4_ERRNO(EROFS) = 30     /* Read-only file system */
++ 	LWEXT4_ERRNO(EMLINK) = 31    /* Too many links */
++ 	LWEXT4_ERRNO(EPIPE) = 32     /* Broken pipe */
++ 	LWEXT4_ERRNO(EDOM) = 33      /* Math argument out of domain of func */
++ 	LWEXT4_ERRNO(ERANGE) = 34    /* Math result not representable */
++ 	LWEXT4_ERRNO(ENOTEMPTY) = 39 /* Directory not empty */
++ 	LWEXT4_ERRNO(ENODATA) = 61   /* No data available */
++ 	LWEXT4_ERRNO(ENOTSUP) = 95   /* Not supported */
++ };
 +
++#endif /* CONFIG_HAVE_OWN_ERRNO */
+ 
+-#ifndef EOK
+-#define EOK 0
+-#endif
+ 
  #ifdef __cplusplus
  }
- #endif

prefix_patch/ext4_oflags.patch

@@ -1,6 +1,8 @@
---- include/ext4_oflags.h	2016-01-25 09:51:20.615385376 +0000
-+++ include/ext4_oflags.h	2016-01-25 09:19:09.420384455 +0000
-@@ -45,51 +45,37 @@ extern "C" {
+diff --git a/include/ext4_oflags.h b/include/ext4_oflags.h
+index 7f7be7e..e99d1af 100644
+--- a/include/ext4_oflags.h
++++ b/include/ext4_oflags.h
+@@ -45,51 +45,33 @@ extern "C" {
  
  #if CONFIG_HAVE_OWN_OFLAGS
  
@@ -31,13 +33,17 @@
 - #ifndef O_APPEND
 - #define O_APPEND 02000
 - #endif
-+ #define LWEXT4_O_RDONLY 00
-+ #define LWEXT4_O_WRONLY 01
-+ #define LWEXT4_O_RDWR 02
-+ #define LWEXT4_O_CREAT 0100
-+ #define LWEXT4_O_EXCL 0200
-+ #define LWEXT4_O_TRUNC 01000
-+ #define LWEXT4_O_APPEND 02000
++ #define LWEXT4_FLAGS(flags) (LWEXT4_##flags)
++
++ enum ext4_oflags {
++ 	LWEXT4_FLAGS(O_RDONLY) = 00
++ 	LWEXT4_FLAGS(O_WRONLY) = 01
++ 	LWEXT4_FLAGS(O_RDWR) = 02
++ 	LWEXT4_FLAGS(O_CREAT) = 0100
++ 	LWEXT4_FLAGS(O_EXCL) = 0200
++ 	LWEXT4_FLAGS(O_TRUNC) = 01000
++ 	LWEXT4_FLAGS(O_APPEND) = 02000
++ };
  
  /********************************FILE SEEK FLAGS*****************************/
  
@@ -52,31 +58,23 @@
 - #ifndef SEEK_END
 - #define SEEK_END 2
 - #endif
-+ #define LWEXT4_SEEK_SET 0
-+ #define LWEXT4_SEEK_CUR 1
-+ #define LWEXT4_SEEK_END 2
++ enum ext4_seek_flags {
++ 	LWEXT4_FLAGS(SEEK_SET) = 0
++ 	LWEXT4_FLAGS(SEEK_CUR) = 1
++ 	LWEXT4_FLAGS(SEEK_END) = 2
++ };
  
  #else
 +
   #include <unistd.h>
   #include <fcntl.h>
 +
-+ #define LWEXT4_O_RDONLY O_RDONLY
-+ #define LWEXT4_O_WRONLY O_WRONLY
-+ #define LWEXT4_O_RDWR O_RDWR
-+ #define LWEXT4_O_CREAT O_CREAT
-+ #define LWEXT4_O_EXCL O_EXCL
-+ #define LWEXT4_O_TRUNC O_TRUNC
-+ #define LWEXT4_O_APPEND O_APPEND
-+
-+ #define LWEXT4_SEEK_SET SEEK_SET
-+ #define LWEXT4_SEEK_CUR SEEK_CUR
-+ #define LWEXT4_SEEK_END SEEK_END
++ #define LWEXT4_FLAGS(flags) (flags)
 +
  #endif
  
  #ifdef __cplusplus
-@@ -101,3 +87,4 @@ extern "C" {
+@@ -101,3 +83,4 @@ extern "C" {
  /**
   * @}
   */

prefix_patch/lwext4_rename.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-PREFIX_TO_ADD=LWEXT4
+MACRO_NAME=LWEXT4
 EXT4_ERRNO_H=ext4_errno.h
 EXT4_OFLAGS_H=ext4_oflags.h
 USED_ERRNO_FILE=/tmp/used_errno
@@ -33,12 +33,12 @@ for errno in $(cat $USED_ERRNO_FILE);do
 	echo "For $errno"
 	for file in $(find . -name "*.c" | xargs -n 1);do
 		if [[ $(basename $file) != $EXT4_ERRNO_H ]];then
-			sed -i "s/\\<${errno}\\>/${PREFIX_TO_ADD}_${errno}/g" $file
+			sed -i "s/\\<${errno}\\>/${MACRO_NAME}_ERRNO(${errno})/g" $file
 		fi
 	done
 	for file in $(find . -name "*.h" | xargs -n 1);do
 		if [[ $(basename $file) != $EXT4_ERRNO_H ]];then
-			sed -i "s/\\<${errno}\\>/${PREFIX_TO_ADD}_${errno}/g" $file
+			sed -i "s/\\<${errno}\\>/${MACRO_NAME}_ERRNO(${errno})/g" $file
 		fi
 	done
 done
@@ -48,18 +48,18 @@ for oflags in $(cat $USED_OFLAGS_FILE);do
 	for file in $(find . -name "*.c" | xargs -n 1);do
 		if [[ $(dirname $file) != "./blockdev/"* &&  \
 		      $(basename $file) != $EXT4_OFLAGS_H ]];then
-			sed -i "s/\\<${oflags}\\>/${PREFIX_TO_ADD}_${oflags}/g" $file
+		sed -i "s/\\<${oflags}\\>/${MACRO_NAME}_FLAGS(${oflags})/g" $file
 		fi
 	done
 	for file in $(find . -name "*.h" | xargs -n 1);do
 		if [[ $(dirname $file) != "./blockdev/"* &&  \
 		      $(basename $file) != $EXT4_OFLAGS_H ]];then
-			sed -i "s/\\<${oflags}\\>/${PREFIX_TO_ADD}_${oflags}/g" $file
+		sed -i "s/\\<${oflags}\\>/${MACRO_NAME}_FLAGS(${oflags})/g" $file
 		fi
 	done
 done
 
 # Do final patching.
 for patches in $(dirname $0)/*.patch ;do
-	patch -p0 < $patches
+	patch -p1 < $patches
 done