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1# syslinux.bbclass
2# Copyright (C) 2004-2006, Advanced Micro Devices, Inc. All Rights Reserved
3# Released under the MIT license (see packages/COPYING)
4
5# Provide syslinux specific functions for building bootable images.
6
7# External variables
8# ${INITRD} - indicates a filesystem image to use as an initrd (optional)
9# ${ROOTFS} - indicates a filesystem image to include as the root filesystem (optional)
10# ${AUTO_SYSLINUXMENU} - set this to 1 to enable creating an automatic menu
11# ${LABELS} - a list of targets for the automatic config
12# ${APPEND} - an override list of append strings for each label
13# ${SYSLINUX_OPTS} - additional options to add to the syslinux file ';' delimited
14# ${SYSLINUX_SPLASH} - A background for the vga boot menu if using the boot menu
15# ${SYSLINUX_DEFAULT_CONSOLE} - set to "console=ttyX" to change kernel boot default console
16# ${SYSLINUX_SERIAL} - Set an alternate serial port or turn off serial with empty string
17# ${SYSLINUX_SERIAL_TTY} - Set alternate console=tty... kernel boot argument
18# ${SYSLINUX_KERNEL_ARGS} - Add additional kernel arguments
19
20do_bootimg[depends] += "syslinux:do_populate_sysroot \
21 syslinux-native:do_populate_sysroot"
22
23SYSLINUXCFG = "${S}/syslinux.cfg"
24
25ISOLINUXDIR = "/isolinux"
26SYSLINUXDIR = "/"
27# The kernel has an internal default console, which you can override with
28# a console=...some_tty...
29SYSLINUX_DEFAULT_CONSOLE ?= ""
30SYSLINUX_SERIAL ?= "0 115200"
31SYSLINUX_SERIAL_TTY ?= "console=ttyS0,115200"
32ISO_BOOTIMG = "isolinux/isolinux.bin"
33ISO_BOOTCAT = "isolinux/boot.cat"
34MKISOFS_OPTIONS = "-no-emul-boot -boot-load-size 4 -boot-info-table"
35APPEND_prepend = " ${SYSLINUX_ROOT} "
36
37syslinux_populate() {
38 DEST=$1
39 BOOTDIR=$2
40 CFGNAME=$3
41
42 install -d ${DEST}${BOOTDIR}
43
44 # Install the config files
45 install -m 0644 ${SYSLINUXCFG} ${DEST}${BOOTDIR}/${CFGNAME}
46 if [ "${AUTO_SYSLINUXMENU}" = 1 ] ; then
47 install -m 0644 ${STAGING_DATADIR}/syslinux/vesamenu.c32 ${DEST}${BOOTDIR}/vesamenu.c32
48 install -m 0444 ${STAGING_DATADIR}/syslinux/libcom32.c32 ${DEST}${BOOTDIR}/libcom32.c32
49 install -m 0444 ${STAGING_DATADIR}/syslinux/libutil.c32 ${DEST}${BOOTDIR}/libutil.c32
50 if [ "${SYSLINUX_SPLASH}" != "" ] ; then
51 install -m 0644 ${SYSLINUX_SPLASH} ${DEST}${BOOTDIR}/splash.lss
52 fi
53 fi
54}
55
56syslinux_iso_populate() {
57 iso_dir=$1
58 syslinux_populate $iso_dir ${ISOLINUXDIR} isolinux.cfg
59 install -m 0644 ${STAGING_DATADIR}/syslinux/isolinux.bin $iso_dir${ISOLINUXDIR}
60 install -m 0644 ${STAGING_DATADIR}/syslinux/ldlinux.c32 $iso_dir${ISOLINUXDIR}
61}
62
63syslinux_hddimg_populate() {
64 hdd_dir=$1
65 syslinux_populate $hdd_dir ${SYSLINUXDIR} syslinux.cfg
66 install -m 0444 ${STAGING_DATADIR}/syslinux/ldlinux.sys $hdd_dir${SYSLINUXDIR}/ldlinux.sys
67}
68
69syslinux_hddimg_install() {
70 syslinux ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg
71}
72
73syslinux_hdddirect_install() {
74 DEST=$1
75 syslinux $DEST
76}
77
78python build_syslinux_cfg () {
79 import copy
80 import sys
81
82 workdir = d.getVar('WORKDIR', True)
83 if not workdir:
84 bb.error("WORKDIR not defined, unable to package")
85 return
86
87 labels = d.getVar('LABELS', True)
88 if not labels:
89 bb.debug(1, "LABELS not defined, nothing to do")
90 return
91
92 if labels == []:
93 bb.debug(1, "No labels, nothing to do")
94 return
95
96 cfile = d.getVar('SYSLINUXCFG', True)
97 if not cfile:
98 raise bb.build.FuncFailed('Unable to read SYSLINUXCFG')
99
100 try:
101 cfgfile = file(cfile, 'w')
102 except OSError:
103 raise bb.build.funcFailed('Unable to open %s' % (cfile))
104
105 cfgfile.write('# Automatically created by OE\n')
106
107 opts = d.getVar('SYSLINUX_OPTS', True)
108
109 if opts:
110 for opt in opts.split(';'):
111 cfgfile.write('%s\n' % opt)
112
113 cfgfile.write('ALLOWOPTIONS 1\n');
114 syslinux_default_console = d.getVar('SYSLINUX_DEFAULT_CONSOLE', True)
115 syslinux_serial_tty = d.getVar('SYSLINUX_SERIAL_TTY', True)
116 syslinux_serial = d.getVar('SYSLINUX_SERIAL', True)
117 if syslinux_serial:
118 cfgfile.write('SERIAL %s\n' % syslinux_serial)
119
120 menu = d.getVar('AUTO_SYSLINUXMENU', True)
121
122 if menu and syslinux_serial:
123 cfgfile.write('DEFAULT Graphics console %s\n' % (labels.split()[0]))
124 else:
125 cfgfile.write('DEFAULT %s\n' % (labels.split()[0]))
126
127 timeout = d.getVar('SYSLINUX_TIMEOUT', True)
128
129 if timeout:
130 cfgfile.write('TIMEOUT %s\n' % timeout)
131 else:
132 cfgfile.write('TIMEOUT 50\n')
133
134 prompt = d.getVar('SYSLINUX_PROMPT', True)
135 if prompt:
136 cfgfile.write('PROMPT %s\n' % prompt)
137 else:
138 cfgfile.write('PROMPT 1\n')
139
140 if menu:
141 cfgfile.write('ui vesamenu.c32\n')
142 cfgfile.write('menu title Select kernel options and boot kernel\n')
143 cfgfile.write('menu tabmsg Press [Tab] to edit, [Return] to select\n')
144 splash = d.getVar('SYSLINUX_SPLASH', True)
145 if splash:
146 cfgfile.write('menu background splash.lss\n')
147
148 for label in labels.split():
149 localdata = bb.data.createCopy(d)
150
151 overrides = localdata.getVar('OVERRIDES', True)
152 if not overrides:
153 raise bb.build.FuncFailed('OVERRIDES not defined')
154
155 localdata.setVar('OVERRIDES', label + ':' + overrides)
156 bb.data.update_data(localdata)
157
158 btypes = [ [ "", syslinux_default_console ] ]
159 if menu and syslinux_serial:
160 btypes = [ [ "Graphics console ", syslinux_default_console ],
161 [ "Serial console ", syslinux_serial_tty ] ]
162
163 for btype in btypes:
164 cfgfile.write('LABEL %s%s\nKERNEL /vmlinuz\n' % (btype[0], label))
165
166 exargs = d.getVar('SYSLINUX_KERNEL_ARGS', True)
167 if exargs:
168 btype[1] += " " + exargs
169
170 append = localdata.getVar('APPEND', True)
171 initrd = localdata.getVar('INITRD', True)
172
173 if append:
174 cfgfile.write('APPEND ')
175
176 if initrd:
177 cfgfile.write('initrd=/initrd ')
178
179 cfgfile.write('LABEL=%s '% (label))
180
181 cfgfile.write('%s %s\n' % (append, btype[1]))
182 else:
183 cfgfile.write('APPEND %s\n' % btype[1])
184
185 cfgfile.close()
186}
187build_syslinux_cfg[vardeps] += "APPEND"