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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
|
# nslu2-kernel.inc
#
# Standard definitions for any NSLU2 Linux kernel.
# Include this file in a .bb which specifies, at least,
# PN,PV,PR for the desired kernel
#
# Define the following *before* including this file as
# required:
#
# N2K_EXTRA_FILES - kernel-tree path of extra files to install
# N2K_FILES - kernel-tree path of files to install, defaults to:
# drivers/i2c/chips/x1205-rtc.c
# arch/arm/mach-ixp4xx/nslu2-io.c
# arch/arm/mach-ixp4xx/nslu2-setup.c
# arch/arm/mach-ixp4xx/nslu2-pci.c
# arch/arm/mach-ixp4xx/nslu2-part.c
# include/asm-arm/arch-ixp4xx/nslu2.h
# ${N2K_EXTRA_FILES}
#
# N2K_EXTRA_PATCHES - list of patches to apply (can include
# patches to the files installed above)
# N2K_PATCHES - full list of patches to apply, defaults to:
# file://nslu2_2.6.11.patch;patch=1
# file://usbnet.patch;patch=1
# file://ixp4xx_copy_from.patch;patch=1
# file://anonymiser.patch;patch=1
# file://xscale-reset.patch;patch=1
# file://mtd-shutdown.patch;patch=1
# ${N2K_EXTRA_PATCHES}
#
# N2K_SUFFIX - the suffix to add after 'zImage-' in the
# deploy/images directory - defaults to "openslug"
#
# Notice that the N2K_PATCHES list is appropriate for
# openslug-kernel_2.6.11.2 and probably nothing else.
#
# DEFAULT_PREFERENCE is set automagically in this file as
# follows:
#
# 10 For *released* kernels
# 8 For mm or ac patched versions of released kernels
# 6 For rc patched kernels (release candidates)
# 4 For mm or ac patched rc (release candidate) kernels
# 2 For pre or bk versions
# 0 For mm or ac patched pre or bk versions
#
# --------------------------------------------------------------
#
# Within this file bitbake variables local to the file are
# named N2K_FOO
#
SECTION = "kernel"
DESCRIPTION = "Linux kernel for the Linksys NSLU2 device"
LICENSE = "GPL"
MAINTAINER = "John Bowler <jbowler@acm.org>"
# Linux kernel source has the general form linux-X.Y.Z-patchP,
# X.Y is the major version number, Z (which may have multiple
# parts) is a sub-version and 'patch' is something like 'mm' or
# 'ac' with a patch version. The original bz2 archive will be
# in a directory/file vX.Y/linux-X.Y.Z.tar.bz2. The unpacked
# source will be in the directory linux-X.Y.Z and this directory
# name corresponds to the module directory (in /lib/modules).
#
# The corresponding .bb file should be called:
#
# package_X.Y.Z-patchP
#
# Giving PN=package PV=X.Y.Z-patchP (and PR is set in the .bb
# file). Files, including the all important defconfig, are
# searched for in the following directories (last one first):
#
# openslug-kernel-2.6.11.2
# nslu2-kernel/files
# nslu2-kernel/X.Y
# nslu2-kernel/X.Y.Z
# nslu2-kernel/X.Y.Z-patch
# nslu2-kernel/X.Y.Z-patchP
# package-X.Y.Z-patchP
#
# This allows sharing of patch files and other useful source!
# To share a file or patch with an earlier version put it in
# the shared directory - e.g. to use foo.patch on 2.6.11.2 and
# 2.6.11.4 it should be in directory nslu2-kernel/2.6.11.
#
# Note that when there are multiple patches the X.Y.Z-patch form
# uses base-patch (e.g. 2.6.12-mm) whereas X.Y.Z-patchP has the
# full form, for example 2.6.12-rc3-mm1 (in the same case).
#PN=package-name
#PV=package-version (full)
# The patch has the general form (rcN|preN|acN|mmN|bkN)* with the
# separate patch items being separated by '-' characters. The
# rc patch is first and has the important property that it
# requires the *preceding* kernel base version and that this
# will be the source directory name.
python () {
# The patches list may be empty. This code starts with the base
# kernel version and steps through the patches. Because the rc and
# pre patches actually require the *preceding* kernel version the code
# fixes that up appropriately.
pv = bb.data.getVar("PV",d,1).split('-')
kernel = pv[0].split('.')
base = pv[0]
name = [base]
major = '.'.join(name[0].split('.')[0:2])
minor = '.'.join(name[0].split('.')[0:3])
patch_uri = [ None ]
filedir = "${FILE_DIRNAME}/nslu2-kernel/%s"
# This entry will become the last one (everything is inserted before it)
filepath = [ filedir % "files" ]
pref = 10
mmac = 0
for patch in pv[1:]:
name.append(patch)
pname = '-'.join(name)
if patch[0:2] == "rc" or patch[0:3] == "pre":
patch_uri.append("ftp://ftp.kernel.org/pub/linux/kernel/v%s/testing/patch-%s.bz2;patch=1;pname=%s" % (major, pname, pname))
kernel[-1] = str(int(kernel[-1]) - 1)
if patch[0:2] == "rc" and pref == 10:
pref = 6
filepath[0:0] = [ filedir % name[0] ]
filepath[0:0] = [ filedir % (name[0] + "-rc") ]
else:
pref = 2
elif patch[0:2] == "bk" or patch[0:3] == "git":
patch_uri.append("ftp://ftp.kernel.org/pub/linux/kernel/v%s/snapshots/patch-%s.bz2;patch=1;pname=%s" % (major, pname, pname))
pref = 2
elif patch[0:2] == "ac":
patch_uri.append("ftp://ftp.kernel.org/pub/linux/kernel/people/alan/linux-%s/%s/patch-%s" % (major, base, pname))
mmac = 2
filepath[0:0] = [ filedir % (name[0] + "-ac") ]
elif patch[0:2] == "mm":
patch_uri.append("ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/%s/%s/%s/%s.bz2;patch=1;pname=%s" % (major, base, pname, pname, pname))
mmac = 2
filepath[0:0] = [ filedir % (name[0] + "-mm") ]
else:
raise bb.build.FuncFailed("nslu2-kernel: patch %s not recognized in %s" % (patch, '-'.join(pv)))
filepath[0:0] = [ filedir % pname ]
base = pname
base = '.'.join(kernel)
patch_uri[0] = "ftp://ftp.kernel.org/pub/linux/kernel/v%s/linux-%s.tar.bz2" % (major, base)
filepath[-1:-1] = [ filedir % base ]
if base != minor:
filepath[-1:-1] = [ filedir % minor ]
filepath[-1:-1] = [ filedir % major ]
bb.data.setVar("N2K_SRCMAJ", major, d)
# bb.note("N2K_SRCMAJ := %s" % major)
bb.data.setVar("N2K_SRCVER", base, d)
# bb.note("N2K_SRCVER := %s" % base)
bb.data.setVar("N2K_SRCURI", ' '.join(patch_uri), d)
# bb.note("N2K_SRCURI := %s" % ' '.join(patch_uri))
bb.data.setVar("N2K_FILESPATH", ':'.join(filepath), d)
# bb.note("N2K_FILESPATH := %s" % ' '.join(filepath))
bb.data.setVar("DEFAULT_PREFERENCE", pref-mmac, d)
# bb.note("DEFAULT_PREFERENCE := %s" % (pref-mmac))
}
# FILESPATH: this list is in order last-searched-first, therefore
# the first entry is the *latest* and/or most specific
FILESPATH = "${FILE_DIRNAME}/${P}:${N2K_FILESPATH}:${FILE_DIRNAME}/openslug-kernel-2.6.11.2"
# The working directory will be the 'base' version (which may not be the
# same as implied by the PV variable because it corresponds to the prior
# minor version for rc and pre patched versions).
S = "${WORKDIR}/linux-${N2K_SRCVER}"
# N2K_FILES is a list of additional files added to the source, these are
# put in place before the patches, so may themselves be patched. The list
# gives the path name relative to the base of the kernel source tree, the
# base file name is used to *find* the file.
N2K_EXTRA_FILES ?=
N2K_FILES ?= "\
drivers/i2c/chips/x1205-rtc.c \
arch/arm/mach-ixp4xx/nslu2-io.c \
arch/arm/mach-ixp4xx/nslu2-setup.c \
arch/arm/mach-ixp4xx/nslu2-pci.c \
arch/arm/mach-ixp4xx/nslu2-part.c \
include/asm-arm/arch-ixp4xx/nslu2.h \
${N2K_EXTRA_FILES}"
N2K_SRCFILES = "${@( ' '.join([ ("file://" + n2k_file.split('/')[-1]) for n2k_file in bb.data.getVar("N2K_FILES",d,1).split(None) ]) )}"
# N2K_PATCHES is a list of additional patches, the list specified
# here comes from the openslug-2.6.11.2 kernel, typically extra
# patches will be required and very often patches will need to
# be removed (i.e. the default is typically not very useful!)
N2K_EXTRA_PATCHES ?=
N2K_PATCHES ?= "\
file://nslu2_2.6.11.patch;patch=1 \
file://usbnet.patch;patch=1 \
file://ixp4xx_copy_from.patch;patch=1 \
file://anonymiser.patch;patch=1 \
file://xscale-reset.patch;patch=1 \
file://mtd-shutdown.patch;patch=1 \
${N2K_EXTRA_PATCHES}"
N2K_SUFFIX ?= "openslug"
SRC_URI = "${N2K_SRCURI}"
SRC_URI += "${N2K_SRCFILES}"
SRC_URI += "${N2K_PATCHES}"
SRC_URI += "file://defconfig"
COMPATIBLE_HOST = 'arm.*-linux'
inherit kernel
ARCH = "arm"
KERNEL_IMAGETYPE = "zImage"
# To specify the console set KERNEL_CONSOLE in the .bb file.
# CMDLINE_ROOT contains the boot options, CMDLINE_KERNEL_OPTIONS
# contains the things for a specific kernel.
CMDLINE_KERNEL_OPTIONS ?= "reboot=s"
CMDLINE_ROOT ?= "root=/dev/mtdblock4 rw rootfstype=jffs2 mem=32M@0x00000000 init=/linuxrc"
# Add distro specific debug (or non-debug) options to this
CMDLINE_DEBUG ?= ""
CMDLINE = "${CMDLINE_ROOT} ${CMDLINE_KERNEL_OPTIONS} ${CMDLINE_DEBUG} ${CMDLINE_CONSOLE}"
# Add the architecture compiler flags to KERNEL_CC and KERNEL_LD as
# required. Notice that this has to be done for each separately built
# module as well!
KERNEL_CC += "${TARGET_CC_KERNEL_ARCH}"
KERNEL_LD += "${TARGET_LD_KERNEL_ARCH}"
# By putting the added files in place in a separate task before
# do_patch it becomes possible to patch these files.
do_unpacklocal() {
for f in ${N2K_FILES}
do
s="$(basename "$f")"
install -m 0644 "${WORKDIR}/$s" "${S}/$f"
done
}
addtask unpacklocal before do_patch after do_unpack
do_configure_prepend() {
install -m 0644 ${WORKDIR}/defconfig ${S}/.config
echo "CONFIG_CMDLINE=\"${CMDLINE}\"" >> ${S}/.config
rm -rf ${S}/include/asm-arm/arch ${S}/include/asm-arm/proc \
${S}/include/asm-arm/.proc ${S}/include/asm-arm/.arch
}
do_deploy[dirs] = "${S}"
do_deploy() {
install -d ${DEPLOY_DIR}/images
install -m 0644 arch/${ARCH}/boot/${KERNEL_IMAGETYPE} ${DEPLOY_DIR}/images/${KERNEL_IMAGETYPE}-${N2K_SUFFIX}
}
addtask deploy before do_build after do_compile
python () {
# Don't build the kernel unless we're targeting an nslu2
mach = bb.data.getVar("MACHINE", d, 1)
if mach != 'nslu2':
raise bb.parse.SkipPackage("OpenSlug only builds for the Linksys NSLU2")
}
|
