1 files changed, 181 insertions, 0 deletions

diff --git a/meta/classes/syslinux.bbclass b/meta/classes/syslinux.bbclass
new file mode 100644
index 0000000000..944bd92da2
--- /dev/null
+++ b/meta/classes/syslinux.bbclass
@@ -0,0 +1,181 @@
+# syslinux.bbclass
+# Copyright (C) 2004-2006, Advanced Micro Devices, Inc.  All Rights Reserved
+# Released under the MIT license (see packages/COPYING)
+
+# Provide syslinux specific functions for building bootable images.
+
+# External variables
+# ${INITRD} - indicates a filesystem image to use as an initrd (optional)
+# ${ROOTFS} - indicates a filesystem image to include as the root filesystem (optional)
+# ${AUTO_SYSLINUXMENU} - set this to 1 to enable creating an automatic menu
+# ${LABELS} - a list of targets for the automatic config
+# ${APPEND} - an override list of append strings for each label
+# ${SYSLINUX_OPTS} - additional options to add to the syslinux file ';' delimited
+# ${SYSLINUX_SPLASH} - A background for the vga boot menu if using the boot menu
+# ${SYSLINUX_DEFAULT_CONSOLE} - set to "console=ttyX" to change kernel boot default console
+# ${SYSLINUX_SERIAL} - Set an alternate serial port or turn off serial with empty string
+# ${SYSLINUX_SERIAL_TTY} - Set alternate console=tty... kernel boot argument
+
+do_bootimg[depends] += "syslinux:do_populate_sysroot \
+                        syslinux-native:do_populate_sysroot"
+
+SYSLINUXCFG  = "${S}/syslinux.cfg"
+
+ISOLINUXDIR = "/isolinux"
+SYSLINUXDIR = "/"
+# The kernel has an internal default console, which you can override with
+# a console=...some_tty...
+SYSLINUX_DEFAULT_CONSOLE ?= ""
+SYSLINUX_SERIAL ?= "0 115200"
+SYSLINUX_SERIAL_TTY ?= "ttyS0,115200"
+ISO_BOOTIMG = "isolinux/isolinux.bin"
+ISO_BOOTCAT = "isolinux/boot.cat"
+MKISOFS_OPTIONS = "-no-emul-boot -boot-load-size 4 -boot-info-table"
+APPEND_prepend = " ${SYSLINUX_ROOT} "
+
+syslinux_populate() {
+        DEST=$1
+        BOOTDIR=$2
+        CFGNAME=$3
+
+        install -d ${DEST}${BOOTDIR}
+
+        # Install the config files
+        install -m 0644 ${SYSLINUXCFG} ${DEST}${BOOTDIR}/${CFGNAME}
+        if [ "${AUTO_SYSLINUXMENU}" = 1 ] ; then
+                install -m 0644 ${STAGING_DATADIR}/syslinux/vesamenu.c32 ${DEST}${BOOTDIR}/vesamenu.c32
+                install -m 0444 ${STAGING_DATADIR}/syslinux/libcom32.c32 ${DEST}${BOOTDIR}/libcom32.c32
+                install -m 0444 ${STAGING_DATADIR}/syslinux/libutil.c32 ${DEST}${BOOTDIR}/libutil.c32
+                if [ "${SYSLINUX_SPLASH}" != "" ] ; then
+                        install -m 0644 ${SYSLINUX_SPLASH} ${DEST}${BOOTDIR}/splash.lss
+                fi
+        fi
+}
+
+syslinux_iso_populate() {
+        iso_dir=$1
+        syslinux_populate $iso_dir ${ISOLINUXDIR} isolinux.cfg
+        install -m 0644 ${STAGING_DATADIR}/syslinux/isolinux.bin $iso_dir${ISOLINUXDIR}
+        install -m 0644 ${STAGING_DATADIR}/syslinux/ldlinux.c32 $iso_dir${ISOLINUXDIR}
+}
+
+syslinux_hddimg_populate() {
+        hdd_dir=$1
+        syslinux_populate $hdd_dir ${SYSLINUXDIR} syslinux.cfg
+        install -m 0444 ${STAGING_DATADIR}/syslinux/ldlinux.sys $hdd_dir${SYSLINUXDIR}/ldlinux.sys
+}
+
+syslinux_hddimg_install() {
+        syslinux ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg
+}
+
+syslinux_hdddirect_install() {
+        DEST=$1
+        syslinux $DEST
+}
+
+python build_syslinux_cfg () {
+    import copy
+    import sys
+
+    workdir = d.getVar('WORKDIR', True)
+    if not workdir:
+        bb.error("WORKDIR not defined, unable to package")
+        return
+        
+    labels = d.getVar('LABELS', True)
+    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 = d.getVar('SYSLINUXCFG', True)
+    if not cfile:
+        raise bb.build.FuncFailed('Unable to read SYSLINUXCFG')
+
+    try:
+        cfgfile = file(cfile, 'w')
+    except OSError:
+        raise bb.build.funcFailed('Unable to open %s' % (cfile))
+
+    cfgfile.write('# Automatically created by OE\n')
+
+    opts = d.getVar('SYSLINUX_OPTS', True)
+
+    if opts:
+        for opt in opts.split(';'):
+            cfgfile.write('%s\n' % opt)
+
+    cfgfile.write('ALLOWOPTIONS 1\n');
+    syslinux_default_console = d.getVar('SYSLINUX_DEFAULT_CONSOLE', True)
+    syslinux_serial_tty = d.getVar('SYSLINUX_SERIAL_TTY', True)
+    syslinux_serial = d.getVar('SYSLINUX_SERIAL', True)
+    if syslinux_serial:
+        cfgfile.write('SERIAL %s\n' % syslinux_serial)
+
+    menu = d.getVar('AUTO_SYSLINUXMENU', True)
+
+    if menu and syslinux_serial:
+        cfgfile.write('DEFAULT Graphics console %s\n' % (labels.split()[0]))
+    else:
+        cfgfile.write('DEFAULT %s\n' % (labels.split()[0]))
+
+    timeout = d.getVar('SYSLINUX_TIMEOUT', True)
+
+    if timeout:
+        cfgfile.write('TIMEOUT %s\n' % timeout)
+    else:
+        cfgfile.write('TIMEOUT 50\n')
+
+    prompt = d.getVar('SYSLINUX_PROMPT', True)
+    if prompt:
+        cfgfile.write('PROMPT %s\n' % prompt)
+    else:
+        cfgfile.write('PROMPT 1\n')
+
+    if menu:
+        cfgfile.write('ui vesamenu.c32\n')
+        cfgfile.write('menu title Select kernel options and boot kernel\n')
+        cfgfile.write('menu tabmsg Press [Tab] to edit, [Return] to select\n')
+        splash = d.getVar('SYSLINUX_SPLASH', True)
+        if splash:
+            cfgfile.write('menu background splash.lss\n')
+    
+    for label in labels.split():
+        localdata = bb.data.createCopy(d)
+
+        overrides = localdata.getVar('OVERRIDES', True)
+        if not overrides:
+            raise bb.build.FuncFailed('OVERRIDES not defined')
+
+        localdata.setVar('OVERRIDES', label + ':' + overrides)
+        bb.data.update_data(localdata)
+    
+        btypes = [ [ "", syslinux_default_console ] ]
+        if menu and syslinux_serial:
+            btypes = [ [ "Graphics console ", syslinux_default_console  ],
+                [ "Serial console ", syslinux_serial_tty ] ]
+
+        for btype in btypes:
+            cfgfile.write('LABEL %s%s\nKERNEL /vmlinuz\n' % (btype[0], label))
+
+            append = localdata.getVar('APPEND', True)
+            initrd = localdata.getVar('INITRD', True)
+
+            if append:
+                cfgfile.write('APPEND ')
+
+                if initrd:
+                    cfgfile.write('initrd=/initrd ')
+
+                cfgfile.write('LABEL=%s '% (label))
+
+                cfgfile.write('%s %s\n' % (append, btype[1]))
+            else:
+                cfgfile.write('APPEND %s\n' % btype[1])
+
+    cfgfile.close()
+}