ref: 9d03d7a99143840029ad69ff40a2b4d5dbb68c82
parent: 2ed1a8a8ae18843f39b715e628308a5846945d84
author: ngkaho1234 <ngkaho1234@gmail.com>
date: Thu Jan 28 17:49:38 EST 2016
Add toolkit that helps adding prefix to flags and errno.
--- /dev/null
+++ b/prefix_patch/ext4_errno.patch
@@ -1,0 +1,124 @@
+--- 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" {+ #include "ext4_config.h"
+
+ #if !CONFIG_HAVE_OWN_ERRNO
++
+ #include <errno.h>
+-#else
+-#define EPERM 1 /* Operation not permitted */
+-#define ENOENT 2 /* No such file or directory */
+-#define EIO 5 /* I/O error */
+-#define ENXIO 6 /* No such device or address */
+-#define E2BIG 7 /* Argument list too long */
+-#define ENOMEM 12 /* Out of memory */
+-#define EACCES 13 /* Permission denied */
+-#define EFAULT 14 /* Bad address */
+-#define EEXIST 17 /* File exists */
+-#define ENODEV 19 /* No such device */
+-#define ENOTDIR 20 /* Not a directory */
+-#define EISDIR 21 /* Is a directory */
+-#define EINVAL 22 /* Invalid argument */
+-#define EFBIG 27 /* File too large */
+-#define ENOSPC 28 /* No space left on device */
+-#define EROFS 30 /* Read-only file system */
+-#define EMLINK 31 /* Too many links */
+-#define ERANGE 34 /* Math result not representable */
+-#define ENOTEMPTY 39 /* Directory not empty */
+-#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
+- #define ENODATA ENOATTR
++ #define LWEXT4_ENODATA ENOATTR
+ #else
+- #define ENODATA 61
++ #define LWEXT4_ENODATA 61
+ #endif
++#else
++#define LWEXT4_ENODATA ENODATA
+ #endif
+
+ #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
++
++#else /* CONFIG_HAVE_OWN_ERRNO */
++
++#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 */
++
++#endif /* CONFIG_HAVE_OWN_ERRNO */
++
++
+ #ifdef __cplusplus
+ }
+ #endif
--- /dev/null
+++ b/prefix_patch/ext4_oflags.patch
@@ -1,0 +1,83 @@
+--- 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" {+
+ #if CONFIG_HAVE_OWN_OFLAGS
+
+- #ifndef O_RDONLY
+- #define O_RDONLY 00
+- #endif
+-
+- #ifndef O_WRONLY
+- #define O_WRONLY 01
+- #endif
+-
+- #ifndef O_RDWR
+- #define O_RDWR 02
+- #endif
+-
+- #ifndef O_CREAT
+- #define O_CREAT 0100
+- #endif
+-
+- #ifndef O_EXCL
+- #define O_EXCL 0200
+- #endif
+-
+- #ifndef O_TRUNC
+- #define O_TRUNC 01000
+- #endif
+-
+- #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
+
+ /********************************FILE SEEK FLAGS*****************************/
+
+- #ifndef SEEK_SET
+- #define SEEK_SET 0
+- #endif
+-
+- #ifndef SEEK_CUR
+- #define SEEK_CUR 1
+- #endif
+-
+- #ifndef SEEK_END
+- #define SEEK_END 2
+- #endif
++ #define LWEXT4_SEEK_SET 0
++ #define LWEXT4_SEEK_CUR 1
++ #define LWEXT4_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
++
+ #endif
+
+ #ifdef __cplusplus
+@@ -101,3 +87,4 @@ extern "C" {+ /**
+ * @}
+ */
++
--- /dev/null
+++ b/prefix_patch/lwext4_rename.sh
@@ -1,0 +1,65 @@
+#!/bin/sh
+
+PREFIX_TO_ADD=LWEXT4
+EXT4_ERRNO_H=ext4_errno.h
+EXT4_OFLAGS_H=ext4_oflags.h
+USED_ERRNO_FILE=/tmp/used_errno
+USED_OFLAGS_FILE=/tmp/used_oflags
+
+usage()
+{+ printf "Usage: %s <lwext4_source_patch>" $1
+ exit 1
+}
+
+if [[ $# -ne 1 ]];then
+ usage $0
+fi
+
+# First change the working directory to destination.
+cd $1
+if [[ $? -ne 0 ]];then
+ exit $?
+fi
+
+# Extract definitions from 2 files.
+sed -n "s/[[:blank:]]*#define \(E[[:alnum:]]\+\)[[:blank:]]\+[[:alnum:]]\+[[:blank:]]*.*/\1/gp" ./include/$EXT4_ERRNO_H > $USED_ERRNO_FILE
+sed -n "s/[[:blank:]]*#define \(O_[[:alpha:]]\+\)[[:blank:]]\+[[:alnum:]]\+[[:blank:]]*.*/\1/gp" ./include/$EXT4_OFLAGS_H > $USED_OFLAGS_FILE
+sed -n "s/[[:blank:]]*#define \(SEEK_[[:alpha:]]\+\)[[:blank:]]\+[[:alnum:]]\+[[:blank:]]*.*/\1/gp" ./include/$EXT4_OFLAGS_H >> $USED_OFLAGS_FILE
+
+# Add prefix to those definjtions.
+
+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+ 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+ fi
+ done
+done
+
+for oflags in $(cat $USED_OFLAGS_FILE);do
+ echo "For $oflags"
+ 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+ 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+ fi
+ done
+done
+
+# Do final patching.
+for patches in $(dirname $0)/*.patch ;do
+ patch -p0 < $patches
+done