summaryrefslogtreecommitdiff
path: root/extra/scripts/fix_includes.sh
blob: fa7cc28c5aae14494e6c2ae75c998589210adf6e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
#!/bin/sh
# Copyright (C) 2003 Erik Andersen <andersen@uclibc.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General
# Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA 02111-1307 USA

usage () {
    echo ""
    echo "usage: "`basename $0`" -k KERNEL_SOURCE_DIRECTORY -t TARGET_ARCH"
    echo ""
    echo "This utility scans the KERNEL_SOURCE_DIRECTORY directory and"
    echo "checks that it contains well formed kernel headers suitable"
    echo "for inclusion as the include/linux/ directory provided by"
    echo "uClibc."
    echo ""
    echo "If the specified kernel headers are present and already"
    echo "configured for the architecture specified by TARGET_ARCH,"
    echo "they will be used as-is."
    echo ""
    echo "If the specified kernel headers are missing entirely, this"
    echo "script will return an error."
    echo ""
    echo "If the specified kernel headers are present, but are either"
    echo "not yet configured or are configured for an architecture"
    echo "different than that specified by TARGET_ARCH, this script"
    echo "will attempt to 'fix' the kernel headers and make them"
    echo "suitable for use by uClibc.  This fixing process may fail."
    echo "It is therefore best to always provide kernel headers that"
    echo "are already configured for the selected architecture."
    echo ""
    echo "Most Linux distributions provide 'kernel-headers' packages"
    echo "that are suitable for use by uClibc."
    echo ""
    echo ""
    exit 1;
}

HAS_MMU="y";
while [ -n "$1" ]; do
    case $1 in
	-k ) shift; if [ -n "$1" ]; then KERNEL_SOURCE=$1; shift; else usage; fi; ;;
	-t ) shift; if [ -n "$1" ]; then TARGET_ARCH=$1; shift; else usage; fi; ;;
	-n ) shift; HAS_MMU="n"; ;;
	-* ) usage; ;;
	* ) usage; ;;
    esac;
done;

if [ ! -f "$KERNEL_SOURCE/include/linux/version.h" ]; then 
    echo "";
    echo "";
    echo "The file $KERNEL_SOURCE/include/linux/version.h is missing!";
    echo "Perhaps you forgot to configure your kernel source?"
    echo "";
    echo "";
    exit 1;
fi;

if [ ! -d "$KERNEL_SOURCE" ]; then 
    echo "";
    echo "";
    echo "$KERNEL_SOURCE is not a directory"; 
    echo "";
    echo "";
    exit 1;
fi;

KVER=`gcc -I$KERNEL_SOURCE/include -E -dM $KERNEL_SOURCE/include/linux/version.h | grep UTS_RELEASE | awk '{ print $3 }' | sed 's/\"//g'`

if [ -z "$KVER" ] ; then
    echo "";
    echo "";
    echo "Unable to determine kernel version."
    echo "Perhaps your kernel source tree is broken?"
    echo "";
    echo "";
    exit 1;
fi;

echo -e "\n"
echo "Using kernel headers from $KVER for architecture '$TARGET_ARCH'"
echo -e "\tprovided in directory $KERNEL_SOURCE"
echo -e "\n"

# Create a symlink to include/asm

rm -f include/asm
if [ ! -d "$KERNEL_SOURCE/include/asm" ]; then 
    echo "";
    echo "";
    echo "The symlink $KERNEL_SOURCE/include/asm is missing\!";
    echo "Perhaps you forgot to configure your kernel source?";
    echo "You really should configure your kernel source tree so I";
    echo "do not have to try and guess about this sort of thing.";
    echo ""
    echo "Attempting to guess a usable value....";  
    echo ""
    echo "";
    sleep 1;

    if [ "$TARGET_ARCH" = "powerpc" ];then
	set -x;
	ln -fs $KERNEL_SOURCE/include/asm-ppc include/asm;
	unset -x;
    elif [ "$TARGET_ARCH" = "mips" ];then
	set -x;
	ln -fs $KERNEL_SOURCE/include/asm-mips include/asm;
	unset -x;
    elif [ "$TARGET_ARCH" = "arm" ];then
	set -x;
	ln -fs $KERNEL_SOURCE/include/asm-arm include/asm;
	unset -x;
	if [ ! -L $KERNEL_SOURCE/include/asm-arm/proc ] ; then 
	    if [ ! -L proc ] ; then
		(cd include/asm;
		ln -fs proc-armv proc;
		ln -fs arch-ebsa285 arch);
	    fi
	fi;
    elif [ "$TARGET_ARCH" = "mipsel" ];then
	set -x;
	ln -fs $KERNEL_SOURCE/include/asm-mips include/asm;
	unset -x;
    elif [ "$TARGET_ARCH)" = "cris" ]; then
	set -x;
	ln -fs $KERNEL_SOURCE/include/asm-cris include/asm;
	unset -x;
    elif [ "$HAS_MMU" != "y" ]; then
	    if [ -d $KERNEL_SOURCE/include/asm-${TARGET_ARCH}nommu ] ; then
		set -x;
		ln -fs $KERNEL_SOURCE/include/asm-${TARGET_ARCH}nommu include/asm;
		unset -x;
	    else
		set -x;
		ln -fs $KERNEL_SOURCE/include/asm-$TARGET_ARCH include/asm;
		unset -x;
	    fi;
    else
	set -x;
	ln -fs $KERNEL_SOURCE/include/asm-$TARGET_ARCH include/asm;
	unset -x;
    fi;
else
# No guessing required.....
ln -fs $KERNEL_SOURCE/include/asm include/asm
fi;



# Create the include/linux and include/scsi symlinks.
rm -f include/linux
ln -fs $KERNEL_SOURCE/include/linux include/linux
rm -f include/scsi
ln -fs $KERNEL_SOURCE/include/scsi include/scsi