syslinux.bbclass: imported from OE (needed to generate booting CD)

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@1893 311d38ba-8fff-0310-9ca6-ca027cbcb966

diff --git a/meta/classes/syslinux.bbclass b/meta/classes/syslinux.bbclass
new file mode 100644 (file)
index 0000000..2f5b6c4
--- /dev/null
+++ b/meta/classes/syslinux.bbclass
@@ -0,0 +1,156 @@
+# syslinux.bbclass
+# Copyright (C) 2004-2006, Advanced Micro Devices, Inc.  All Rights Reserved
+# Released under the MIT license (see packages/COPYING)
+
+# This creates a configuration file suitable for use with syslinux.  
+
+python build_syslinux_menu () {
+       import copy
+       import sys
+
+       workdir = bb.data.getVar('WORKDIR', d, 1)
+       if not workdir:
+               bb.error("WORKDIR is not defined")
+               return
+               
+       labels = bb.data.getVar('LABELS', d, 1)
+       if not labels:
+               bb.debug(1, "LABELS not defined, nothing to do")
+               return
+       
+       if labels == []:
+               bb.debug(1, "No labels, nothing to do")
+               return
+
+       cfile = bb.data.getVar('SYSLINUXMENU', d, 1)
+       if not cfile:
+               raise bb.build.FuncFailed('Unable to read SYSLINUXMENU')
+
+       bb.mkdirhier(os.path.dirname(cfile))
+
+       try:
+               cfgfile = file(cfile, 'w')
+       except OSError:
+               raise bb.build.funcFailed('Unable to open %s' % (cfile))
+
+       # Beep the speaker and Clear the screen
+       cfgfile.write('\x07\x0C')
+
+       # The title should be configurable
+       cfgfile.write('AMD Geode Linux Boot Menu\n')
+       cfgfile.write('The following targets are available on this image:\n')
+       cfgfile.write('\n')
+
+       for label in labels.split():
+               from copy import deepcopy
+               localdata = deepcopy(d)
+
+               overrides = bb.data.getVar('OVERRIDES', localdata)
+               if not overrides:
+                       raise bb.build.FuncFailed('OVERRIDES not defined')
+               overrides = bb.data.expand(overrides, localdata)
+       
+               bb.data.setVar('OVERRIDES', label + ':' + overrides, localdata)
+               bb.data.update_data(localdata)
+
+               usage = bb.data.getVar('USAGE', localdata, 1)
+               cfgfile.write('  \x0F\x30\x3E%16s\x0F\x30\x37: ' % (label))
+               cfgfile.write('%s\n' % (usage))
+
+               del localdata
+
+       cfgfile.write('\n')
+       cfgfile.close()
+}
+
+python build_syslinux_cfg () {
+       import copy
+       import sys
+
+       workdir = bb.data.getVar('WORKDIR', d, 1)
+       if not workdir:
+               bb.error("WORKDIR not defined, unable to package")
+               return
+               
+       labels = bb.data.getVar('LABELS', d, 1)
+       if not labels:
+               bb.debug(1, "LABELS not defined, nothing to do")
+               return
+       
+       if labels == []:
+               bb.debug(1, "No labels, nothing to do")
+               return
+
+       cfile = bb.data.getVar('SYSLINUXCFG', d, 1)
+       if not cfile:
+               raise bb.build.FuncFailed('Unable to read SYSLINUXCFG')
+
+       bb.mkdirhier(os.path.dirname(cfile))
+
+       try:
+               cfgfile = file(cfile, 'w')
+       except OSError:
+               raise bb.build.funcFailed('Unable to open %s' % (cfile))
+
+       # FIXME - the timeout should be settable
+       # And maybe the default too
+       # Definately the prompt
+
+       cfgfile.write('# Automatically created by OE\n')
+
+       opts = bb.data.getVar('SYSLINUX_OPTS', d, 1)
+
+       if opts:
+               for opt in opts.split(';'):
+                       cfgfile.write('%s\n' % opt)
+               
+       cfgfile.write('ALLOWOPTIONS 1\n');
+       cfgfile.write('DEFAULT %s\n' % (labels.split()[0]))
+
+       timeout = bb.data.getVar('SYSLINUX_TIMEOUT', d, 1)
+
+       if timeout:
+               cfgfile.write('TIMEOUT %s\n' % timeout)
+       else:
+               cfgfile.write('TIMEOUT 50\n')
+
+       cfgfile.write('PROMPT 1\n')
+
+       menu = bb.data.getVar('AUTO_SYSLINUXMENU', d, 1)
+
+       # This is ugly.  My bad.
+
+       if menu:
+               bb.build.exec_func('build_syslinux_menu', d)
+               mfile = bb.data.getVar('SYSLINUXMENU', d, 1)
+               cfgfile.write('DISPLAY %s\n' % (mfile.split('/')[-1]) )
+       
+       for label in labels.split():
+               from copy import deepcopy
+               localdata = deepcopy(d)
+
+               overrides = bb.data.getVar('OVERRIDES', localdata)
+               if not overrides:
+                       raise bb.build.FuncFailed('OVERRIDES not defined')
+               overrides = bb.data.expand(overrides, localdata)
+       
+               bb.data.setVar('OVERRIDES', label + ':' + overrides, localdata)
+               bb.data.update_data(localdata)
+       
+               cfgfile.write('LABEL %s\nKERNEL vmlinuz\n' % (label))
+
+               append = bb.data.getVar('APPEND', localdata, 1)
+               initrd = bb.data.getVar('INITRD', localdata, 1)
+
+               if append:
+                       cfgfile.write('APPEND ')
+
+                       if initrd:
+                               cfgfile.write('initrd=initrd ')
+
+                       cfgfile.write('%s\n' % (append))
+       
+               del localdata
+       
+       cfgfile.close()
+}