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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
S = "${WORKDIR}/linux"
# Determine which branch to fetch and build. Not all branches are in the
# upstream repo (but will be locally created after the fetchers run) so
# a fallback branch needs to be chosen.
#
# The default machine 'UNDEFINED'. If the machine is not set to a specific
# branch in this recipe or in a recipe extension, then we fallback to a
# branch that is always present 'standard'. This sets the KBRANCH variable
# and is used in the SRC_URI. The machine is then set back to ${MACHINE},
# since futher processing will use that to create local branches
python __anonymous () {
import bb, re, string
version = bb.data.getVar("LINUX_VERSION", d, 1)
# 2.6.34 signifies the old-style tree, so we need some temporary
# conditional processing based on the kernel version.
if version == "2.6.34":
bb.data.setVar("KBRANCH", "${KMACHINE}-${LINUX_KERNEL_TYPE}", d)
bb.data.setVar("KMETA", "wrs_meta", d)
mach = bb.data.getVar("KMACHINE", d, 1)
if mach == "UNDEFINED":
bb.data.setVar("KBRANCH", "standard", d)
bb.data.setVar("KMACHINE", "${MACHINE}", d)
# track the global configuration on a bootstrapped BSP
bb.data.setVar("SRCREV_machine", "${SRCREV_meta}", d)
bb.data.setVar("BOOTSTRAP", bb.data.expand("${MACHINE}",d) + "-standard", d)
else:
# The branch for a build is:
# yocto/<kernel type>/${KMACHINE} or
# yocto/<kernel type>/${KMACHINE}/base
mach = bb.data.getVar("KMACHINE_" + bb.data.expand("${MACHINE}",d), d, 1)
if mach == None:
mach = bb.data.getVar("KMACHINE", d, 1)
bb.data.setVar("KBRANCH", mach, d)
bb.data.setVar("KMETA", "meta", d)
# drop the "/base" if it was on the KMACHINE
kmachine = mach.replace('/base','')
# drop everything but the last segment
kmachine = os.path.basename( kmachine )
# and then write KMACHINE back
bb.data.setVar('KMACHINE_' + bb.data.expand("${MACHINE}",d), kmachine, d)
if mach == "UNDEFINED":
bb.data.setVar('KMACHINE_' + bb.data.expand("${MACHINE}",d), bb.data.expand("${MACHINE}",d), d)
bb.data.setVar("KBRANCH", "yocto/standard/base", d)
bb.data.setVar("SRCREV_machine", "standard", d)
bb.data.setVar("BOOTSTRAP", "yocto/standard/" + bb.data.expand("${MACHINE}",d), d)
}
do_patch() {
cd ${S}
if [ -f ${WORKDIR}/defconfig ]; then
defconfig=${WORKDIR}/defconfig
fi
kbranch=${KBRANCH}
if [ -n "${BOOTSTRAP}" ]; then
# switch from a generic to a specific branch
kbranch=${BOOTSTRAP}
fi
# simply ensures that a branch of the right name has been created
createme ${ARCH} ${kbranch} ${defconfig}
if [ $? -ne 0 ]; then
echo "ERROR. Could not create ${kbranch}"
exit 1
fi
# updates or generates the target description
if [ -n "${KERNEL_FEATURES}" ]; then
addon_features="--features ${KERNEL_FEATURES}"
fi
updateme ${addon_features} ${ARCH} ${MACHINE} ${WORKDIR}
if [ $? -ne 0 ]; then
echo "ERROR. Could not update ${kbranch}"
exit 1
fi
# executes and modifies the source tree as required
patchme ${kbranch}
if [ $? -ne 0 ]; then
echo "ERROR. Could not modify ${kbranch}"
exit 1
fi
}
do_kernel_checkout() {
if [ -d ${WORKDIR}/.git/refs/remotes/origin ]; then
echo "Fixing up git directory for ${LINUX_KERNEL_TYPE}/${KMACHINE}"
rm -rf ${S}
mkdir ${S}
mv ${WORKDIR}/.git ${S}
if [ -e ${S}/.git/packed-refs ]; then
cd ${S}
rm -f .git/refs/remotes/origin/HEAD
IFS='
';
for r in `git show-ref | grep remotes`; do
ref=`echo $r | cut -d' ' -f1`;
b=`echo $r | cut -d' ' -f2 | sed 's%refs/remotes/origin/%%'`;
dir=`dirname $b`
mkdir -p .git/refs/heads/$dir
echo $ref > .git/refs/heads/$b
done
cd ..
else
cp -r ${S}/.git/refs/remotes/origin/* ${S}/.git/refs/heads
rmdir ${S}/.git/refs/remotes/origin
fi
fi
cd ${S}
# checkout and clobber and unimportant files
git checkout -f ${KBRANCH}
}
do_kernel_checkout[dirs] = "${S}"
addtask kernel_checkout before do_patch after do_unpack
do_kernel_configme() {
echo "[INFO] doing kernel configme"
cd ${S}
configme --reconfig --output ${B} ${KBRANCH} ${MACHINE}
if [ $? -ne 0 ]; then
echo "ERROR. Could not configure ${KMACHINE}-${LINUX_KERNEL_TYPE}"
exit 1
fi
echo "# Global settings from linux recipe" >> ${B}/.config
echo "CONFIG_LOCALVERSION="\"${LINUX_VERSION_EXTENSION}\" >> ${B}/.config
}
do_kernel_configcheck() {
echo "[INFO] validating kernel configuration"
cd ${B}/..
kconf_check ${B}/.config ${B} ${S} ${B} ${LINUX_VERSION} ${KMACHINE}-${LINUX_KERNEL_TYPE}
}
# Ensure that the branches (BSP and meta) are on the locatios specified by
# their SRCREV values. If they are NOT on the right commits, the branches
# are reset to the correct commit.
do_validate_branches() {
cd ${S}
branch_head=`git show-ref -s --heads ${KBRANCH}`
meta_head=`git show-ref -s --heads ${KMETA}`
target_branch_head="${SRCREV_machine}"
target_meta_head="${SRCREV_meta}"
# nothing to do if bootstrapping
if [ -n "${BOOTSTRAP}" ]; then
return
fi
current=`git branch |grep \*|sed 's/^\* //'`
if [ -n "$target_branch_head" ] && [ "$branch_head" != "$target_branch_head" ]; then
if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
echo "ERROR ${target_branch_head} is not a valid commit ID."
echo "The kernel source tree may be out of sync"
exit 1
else
echo "Forcing branch $current to ${target_branch_head}"
git branch -m $current $current-orig
git checkout -b $current ${target_branch_head}
fi
fi
fi
if [ "$meta_head" != "$target_meta_head" ]; then
if [ -n "${KERNEL_REVISION_CHECKING}" ]; then
ref=`git show ${target_meta_head} 2>&1 | head -n1 || true`
if [ "$ref" = "fatal: bad object ${target_meta_head}" ]; then
echo "ERROR ${target_meta_head} is not a valid commit ID"
echo "The kernel source tree may be out of sync"
exit 1
else
echo "Forcing branch meta to ${target_meta_head}"
git branch -m ${KMETA} ${KMETA}-orig
git checkout -b ${KMETA} ${target_meta_head}
fi
fi
fi
# restore the branch for builds
git checkout -f ${KBRANCH}
}
# Many scripts want to look in arch/$arch/boot for the bootable
# image. This poses a problem for vmlinux based booting. This
# task arranges to have vmlinux appear in the normalized directory
# location.
do_kernel_link_vmlinux() {
if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
mkdir ${B}/arch/${ARCH}/boot
fi
cd ${B}/arch/${ARCH}/boot
ln -sf ../../../vmlinux
}
|
