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

1 files changed, 156 insertions, 0 deletions

diff --git a/meta/classes/syslinux.bbclass b/meta/classes/syslinux.bbclass
new file mode 100644
index 0000000000..2f5b6c43d7
--- /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()
+}