Archlinux PKGBUILD for linux-2.6.37.6 + xenomai-2.5.6 on NetusG20 ARM board

README

This will build a linux xenomai realtime kernel for the Netus FoxG20 arm board.

makepkg --config makepkg.conf

You will be given the chance to configure the kernel. The only setting to change is
Realtime->Machine->FPU...  (Set to off)

change-default-console-loglevel.patch

diff -upr linux-3.0.orig/kernel/printk.c linux-3.0/kernel/printk.c
--- linux-3.0.orig/kernel/printk.c	2011-07-22 05:17:23.000000000 +0300
+++ linux-3.0/kernel/printk.c	2011-07-27 14:43:07.000000000 +0300
@@ -58,7 +58,7 @@ void asmlinkage __attribute__((weak)) ea
 
 /* We show everything that is MORE important than this.. */
 #define MINIMUM_CONSOLE_LOGLEVEL 1 /* Minimum loglevel we let people use */
-#define DEFAULT_CONSOLE_LOGLEVEL 7 /* anything MORE serious than KERN_DEBUG */
+#define DEFAULT_CONSOLE_LOGLEVEL 4 /* anything MORE serious than KERN_DEBUG */
 
 DECLARE_WAIT_QUEUE_HEAD(log_wait);
 

makepkg.conf

#
# /etc/makepkg.conf
#

#########################################################################
# SOURCE ACQUISITION
#########################################################################
#
#-- The download utilities that makepkg should use to acquire sources
#  Format: 'protocol::agent'
DLAGENTS=('ftp::/usr/bin/wget -c --passive-ftp -t 3 --waitretry=3 -O %o %u'
          'http::/usr/bin/wget -c -t 3 --waitretry=3 -O %o %u'
          'https::/usr/bin/wget -c -t 3 --waitretry=3 --no-check-certificate -O %o %u'
          'rsync::/usr/bin/rsync -z %u %o'
          'scp::/usr/bin/scp -C %u %o')

# Other common tools:
# /usr/bin/snarf
# /usr/bin/lftpget -c
# /usr/bin/curl

#########################################################################
# ARCHITECTURE, COMPILE FLAGS
#########################################################################
#
CARCH="arm"
CHOST="arm-none-linux-gnueabi"

#-- Exclusive: will only run on x86_64
# -march (or -mcpu) builds exclusively for an architecture
# -mtune optimizes for an architecture, but builds for whole processor family
#CFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -D_FORTIFY_SOURCE=2"
#CXXFLAGS="-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -D_FORTIFY_SOURCE=2"
#LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro,--hash-style=gnu"
#-- Make Flags: change this for DistCC/SMP systems
#$MAKEFLAGS="-j4"

#########################################################################
# BUILD ENVIRONMENT
#########################################################################
#
# Defaults: BUILDENV=(fakeroot !distcc color !ccache check)
#  A negated environment option will do the opposite of the comments below.
#
#-- fakeroot: Allow building packages as a non-root user
#-- distcc:   Use the Distributed C/C++/ObjC compiler
#-- color:    Colorize output messages
#-- ccache:   Use ccache to cache compilation
#-- check:    Run the check() function if present in the PKGBUILD
#
BUILDENV=(fakeroot !distcc color !ccache check)
#
#-- If using DistCC, your MAKEFLAGS will also need modification. In addition,
#-- specify a space-delimited list of hosts running in the DistCC cluster.
#DISTCC_HOSTS=""

#########################################################################
# GLOBAL PACKAGE OPTIONS
#   These are default values for the options=() settings
#########################################################################
#
# Default: OPTIONS=(strip docs libtool emptydirs zipman purge)
#  A negated option will do the opposite of the comments below.
#
#-- strip:     Strip symbols from binaries/libraries
#-- docs:      Save doc directories specified by DOC_DIRS
#-- libtool:   Leave libtool (.la) files in packages
#-- emptydirs: Leave empty directories in packages
#-- zipman:    Compress manual (man and info) pages in MAN_DIRS with gzip
#-- purge:     Remove files specified by PURGE_TARGETS
#
OPTIONS=(!strip docs libtool emptydirs zipman purge)

#-- File integrity checks to use. Valid: md5, sha1, sha256, sha384, sha512
INTEGRITY_CHECK=(md5)
#-- Options to be used when stripping binaries. See `man strip' for details.
STRIP_BINARIES="--strip-all"
#-- Options to be used when stripping shared libraries. See `man strip' for details.
STRIP_SHARED="--strip-unneeded"
#-- Options to be used when stripping static libraries. See `man strip' for details.
STRIP_STATIC="--strip-debug"
#-- Manual (man and info) directories to compress (if zipman is specified)
MAN_DIRS=({usr{,/local}{,/share},opt/*}/{man,info})
#-- Doc directories to remove (if !docs is specified)
DOC_DIRS=(usr/{,local/}{,share/}{doc,gtk-doc} opt/*/{doc,gtk-doc})
#-- Files to be removed from all packages (if purge is specified)
PURGE_TARGETS=(usr/{,share}/info/dir .packlist *.pod)

#########################################################################
# PACKAGE OUTPUT
#########################################################################
#
# Default: put built package and cached source in build directory
#
#-- Destination: specify a fixed directory where all packages will be placed
#PKGDEST=/home/packages
#-- Source cache: specify a fixed directory where source files will be cached
#SRCDEST=/home/sources
#-- Source packages: specify a fixed directory where all src packages will be placed
#SRCPKGDEST=/home/srcpackages
#-- Packager: name/email of the person or organization building packages
#PACKAGER="John Doe <john@doe.com>"

#########################################################################
# EXTENSION DEFAULTS
#########################################################################
#
# WARNING: Do NOT modify these variables unless you know what you are
#          doing.
#
PKGEXT='.pkg.tar.xz'
SRCEXT='.src.tar.gz'

# vim: set ft=sh ts=2 sw=2 et:

Netus.patch

--- linux-2.6.37.6/arch/arm/mach-at91/board-foxg20.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.38.8/arch/arm/mach-at91/board-foxg20.c	2011-06-03 03:35:11.000000000 +0200
@@ -0,0 +1,274 @@
+/*
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2008 Atmel
+ *  Copyright (C) 2010 Lee McLoughlin - lee@lmmrtech.com
+ *  Copyright (C) 2010 Sergio Tanzilli - tanzilli@acmesystems.it
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/at73c213.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/clk.h>
+#include <linux/w1-gpio.h>
+
+#include <mach/hardware.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/board.h>
+#include <mach/at91sam9_smc.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+/*
+ * The FOX Board G20 hardware comes as the "Netus G20" board with
+ * just the cpu, ram, dataflash and two header connectors.
+ * This is plugged into the FOX Board which provides the ethernet,
+ * usb, rtc, leds, switch, ...
+ *
+ * For more info visit: http://www.acmesystems.it/foxg20
+ */
+
+
+static void __init foxg20_map_io(void)
+{
+	/* Initialize processor: 18.432 MHz crystal */
+	at91sam9260_initialize(18432000);
+
+	/* DBGU on ttyS0. (Rx & Tx only) */
+	at91_register_uart(0, 0, 0);
+
+	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
+	at91_register_uart(AT91SAM9260_ID_US0, 1,
+				ATMEL_UART_CTS
+				| ATMEL_UART_RTS
+				| ATMEL_UART_DTR
+				| ATMEL_UART_DSR
+				| ATMEL_UART_DCD
+				| ATMEL_UART_RI);
+
+	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
+	at91_register_uart(AT91SAM9260_ID_US1, 2,
+		ATMEL_UART_CTS
+		| ATMEL_UART_RTS);
+
+	/* USART2 on ttyS3. (Rx & Tx only) */
+	at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
+
+	/* USART3 on ttyS4. (Rx, Tx, RTS, CTS) */
+	at91_register_uart(AT91SAM9260_ID_US3, 4,
+		ATMEL_UART_CTS
+		| ATMEL_UART_RTS);
+
+	/* USART4 on ttyS5. (Rx & Tx only) */
+	at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
+
+	/* USART5 on ttyS6. (Rx & Tx only) */
+	at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
+
+	/* set serial console to ttyS0 (ie, DBGU) */
+	at91_set_serial_console(0);
+
+	/* Set the internal pull-up resistor on DRXD */
+	at91_set_A_periph(AT91_PIN_PB14, 1);
+
+}
+
+static void __init foxg20_init_irq(void)
+{
+	at91sam9260_init_interrupts(NULL);
+}
+
+
+/*
+ * USB Host port
+ */
+static struct at91_usbh_data __initdata foxg20_usbh_data = {
+	.ports		= 2,
+};
+
+/*
+ * USB Device port
+ */
+static struct at91_udc_data __initdata foxg20_udc_data = {
+	.vbus_pin	= AT91_PIN_PC6,
+	.pullup_pin	= 0,		/* pull-up driven by UDC */
+};
+
+
+/*
+ * SPI devices.
+ */
+static struct spi_board_info foxg20_spi_devices[] = {
+#if !defined(CONFIG_MMC_AT91)
+	{
+		.modalias	= "mtd_dataflash",
+		.chip_select	= 1,
+		.max_speed_hz	= 15 * 1000 * 1000,
+		.bus_num	= 0,
+	},
+#endif
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata foxg20_macb_data = {
+	.phy_irq_pin	= AT91_PIN_PA7,
+	.is_rmii	= 1,
+};
+
+/*
+ * MCI (SD/MMC)
+ * det_pin, wp_pin and vcc_pin are not connected
+ */
+static struct at91_mmc_data __initdata foxg20_mmc_data = {
+	.slot_b		= 1,
+	.wire4		= 1,
+};
+
+
+/*
+ * LEDs
+ */
+static struct gpio_led foxg20_leds[] = {
+	{	/* user led, red */
+		.name			= "user_led",
+		.gpio			= AT91_PIN_PC7,
+		.active_low		= 0,
+		.default_trigger	= "heartbeat",
+	},
+};
+
+
+/*
+ * GPIO Buttons
+ */
+#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
+static struct gpio_keys_button foxg20_buttons[] = {
+	{
+		.gpio		= AT91_PIN_PC4,
+		.code		= BTN_1,
+		.desc		= "Button 1",
+		.active_low	= 1,
+		.wakeup		= 1,
+	},
+};
+
+static struct gpio_keys_platform_data foxg20_button_data = {
+	.buttons	= foxg20_buttons,
+	.nbuttons	= ARRAY_SIZE(foxg20_buttons),
+};
+
+static struct platform_device foxg20_button_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.num_resources	= 0,
+	.dev		= {
+		.platform_data	= &foxg20_button_data,
+	}
+};
+
+static void __init foxg20_add_device_buttons(void)
+{
+	at91_set_gpio_input(AT91_PIN_PC4, 1);	/* btn1 */
+	at91_set_deglitch(AT91_PIN_PC4, 1);
+
+	platform_device_register(&foxg20_button_device);
+}
+#else
+static void __init foxg20_add_device_buttons(void) {}
+#endif
+
+
+#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
+static struct w1_gpio_platform_data w1_gpio_pdata = {
+	/* If you choose to use a pin other than PB16 it needs to be 3.3V */
+	.pin		= AT91_PIN_PB16,
+	.is_open_drain  = 1,
+};
+
+static struct platform_device w1_device = {
+	.name			= "w1-gpio",
+	.id			= -1,
+	.dev.platform_data	= &w1_gpio_pdata,
+};
+
+static void __init at91_add_device_w1(void)
+{
+	at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
+	at91_set_multi_drive(w1_gpio_pdata.pin, 1);
+	platform_device_register(&w1_device);
+}
+
+#endif
+
+
+static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
+	{
+		I2C_BOARD_INFO("24c512", 0x50),
+	},
+};
+
+
+static void __init foxg20_board_init(void)
+{
+	/* Serial */
+	at91_add_device_serial();
+	/* USB Host */
+	at91_add_device_usbh(&foxg20_usbh_data);
+	/* USB Device */
+	at91_add_device_udc(&foxg20_udc_data);
+	/* SPI */
+	at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
+	/* Ethernet */
+	at91_add_device_eth(&foxg20_macb_data);
+	/* MMC */
+	at91_add_device_mmc(0, &foxg20_mmc_data);
+	/* I2C */
+	at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
+	/* LEDs */
+	at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
+	/* Push Buttons */
+	foxg20_add_device_buttons();
+#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
+	at91_add_device_w1();
+#endif
+}
+
+MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
+	/* Maintainer: Sergio Tanzilli */
+	.boot_params	= AT91_SDRAM_BASE + 0x100,
+	.timer		= &at91sam926x_timer,
+	.map_io		= foxg20_map_io,
+	.init_irq	= foxg20_init_irq,
+	.init_machine	= foxg20_board_init,
+MACHINE_END
--- linux-2.6.37.6/arch/arm/mach-at91/Kconfig	2011-03-27 21:01:41.000000000 +0200
+++ linux-2.6.38.8/arch/arm/mach-at91/Kconfig	2011-06-03 03:35:11.000000000 +0200
@@ -362,6 +362,12 @@
 	  Select this if you are using a Eukrea Electromatique's
 	  CPU9G20 Board <http://www.eukrea.com/>
 
+config MACH_ACMENETUSFOXG20
+	bool "Acme Systems srl FOX Board G20"
+	help
+	  Select this if you are using Acme Systems
+	  FOX Board G20 <http://www.acmesystems.it>
+
 config MACH_PORTUXG20
 	bool "taskit PortuxG20"
 	help
@@ -381,6 +387,13 @@
 	  Select this if you are using taskit's Stamp9G20 CPU module on this
 	  carrier board, beeing the decentralized unit of a building automation
 	  system; featuring nvram, eth-switch, iso-rs485, display, io
+
+config MACH_GSIA18S
+	bool "GS_IA18_S board"
+	help
+	  This enables support for the GS_IA18_S board
+	  produced by GeoSIG Ltd company. This is an internet accelerograph.
+	  <http://www.geosig.com>
 endif
 
 if (ARCH_AT91SAM9260 || ARCH_AT91SAM9G20)
--- linux-2.6.37.6/arch/arm/mach-at91/Makefile	2011-03-27 21:01:41.000000000 +0200
+++ linux-2.6.38.8/arch/arm/mach-at91/Makefile	2011-06-03 03:35:11.000000000 +0200
@@ -63,9 +63,11 @@
 # AT91SAM9G20 board-specific support
 obj-$(CONFIG_MACH_AT91SAM9G20EK) += board-sam9g20ek.o
 obj-$(CONFIG_MACH_CPU9G20)	+= board-cpu9krea.o
+obj-$(CONFIG_MACH_ACMENETUSFOXG20) += board-foxg20.o
 obj-$(CONFIG_MACH_STAMP9G20)	+= board-stamp9g20.o
 obj-$(CONFIG_MACH_PORTUXG20)	+= board-stamp9g20.o
 obj-$(CONFIG_MACH_PCONTROL_G20)	+= board-pcontrol-g20.o board-stamp9g20.o
+obj-$(CONFIG_MACH_GSIA18S)	+= board-gsia18s.o board-stamp9g20.o
 
 # AT91SAM9260/AT91SAM9G20 board-specific support
 obj-$(CONFIG_MACH_SNAPPER_9260)	+= board-snapper9260.o

PKGBUILD

# $Id: PKGBUILD 130991 2011-07-09 12:23:51Z thomas $
# Maintainer: Tobias Powalowski <tpowa@archlinux.org>
# Maintainer: Thomas Baechler <thomas@archlinux.org>

pkgbase=linux
pkgname=('linux-xenomai-AT91G20' 'linux-headers-xenomai-AT91G20' 'xenomai') # Build stock -ARCH kernel
# pkgname=linux-custom       # Build kernel with a different name
_kernelname=${pkgname#linux}
_basekernel=2.6.37
_xenover=2.5.6
pkgver=${_basekernel}.6
pkgrel=1
arch=('arm')
url="http://www.kernel.org/"
license=('GPL2')
makedepends=('uboot-mkimage')
options=('!strip')
source=("ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-${pkgver}.tar.bz2"
#http://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.37.6.tar.bz2
        #"ftp://ftp.kernel.org/pub/linux/kernel/v3.0/patch-${pkgver}.gz"
        #"ftp://ftp.archlinux.org/other/linux/patch-${pkgver}.gz"
	#Xenomai files & latest adeos patch
        "http://download.gna.org/xenomai/stable/xenomai-${_xenover}.tar.bz2"
        "http://download.gna.org/adeos/patches/v2.6/arm/adeos-ipipe-${pkgver}-arm-1.18-03.patch"
	#ACME Netus kernel config files
	"http://www.acmesystems.it/download/kernel_2.6.38/.config"
	"http://www.acmesystems.it/download/kernel_2.6.38/makefile"
        "change-default-console-loglevel.patch"
        #ACME arch/arm/mach-at91/{Kconfig,Makefile,board-foxg20.c}
        "Netus.patch"
)

md5sums=('05970afdce8ec4323a10dcd42bc4fb0c'
         'fbc1347de290d76c6eb1665e2510f545'
         '176b1afb1a8063bf50694cd1c6ab9983'
         '0a7f6b137ede897b968e545c710f39be'
         '0210b2c7be8212e22d2e5f587dae7d84'
         '9d3c56a4b999c8bfbd4018089a62f662'
         '7565f270d1c2fa0e16e0f102766c5d4d'
)

build() {
  cd "${srcdir}/linux-${pkgver}"

  #patch -p1 -i "${srcdir}/patch-${pkgver}"

  # add latest fixes from stable queue, if needed
  # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git

  # set DEFAULT_CONSOLE_LOGLEVEL to 4 (same value as the 'quiet' kernel param)
  # remove this when a Kconfig knob is made available by upstream
  # (relevant patch sent upstream: https://lkml.org/lkml/2011/7/26/227)
#patch -Np1 -i "${srcdir}/change-default-console-loglevel.patch"

  patch -uNp1 -i ${srcdir}/Netus.patch

  ${srcdir}/xenomai-${_xenover}/scripts/prepare-kernel.sh --linux=${srcdir}/linux-${pkgver}/ --arch=arm --adeos=${srcdir}/adeos-ipipe-${pkgver}-arm-1.18-03.patch

#  if [ "${CARCH}" = "x86_64" ]; then
#    cat "${srcdir}/config.x86_64" > ./.config
#  else
#    cat "${srcdir}/config" > ./.config
#  fi


  #Copy in Netus config files
  cat "${srcdir}/.config" > ./.config
  cat "${srcdir}/makefile" > ./makefile  

  #Adjust cross compiler
  sed -i "s|CROSS_COMPILE=arm-linux-gnueabi-|CROSS_COMPILE=arm-none-linux-gnueabi-|g" makefile 

  # remove the sublevel from Makefile
  # this ensures our kernel version is always 3.X-ARCH
  # this way, minor kernel updates will not break external modules
  # we need to change this soon, see FS#16702

  # get kernel version
#  make prepare

  # load configuration
  # Configure the kernel. Replace the line below with one of your choice.
  make menuconfig # CLI menu for configuration
  #make nconfig # new CLI menu for configuration
  #make xconfig # X-based configuration
  #make oldconfig # using old config from previous kernel version
  # ... or manually edit .config

  ####################
  # stop here
  # this is useful to configure the kernel
  #msg "Stopping build"
  #return 1
  ####################

#  yes "" | make config

  # build!
  make ${MAKEFLAGS} uImage
  make ${MAKEFLAGS} modules

  cd "${srcdir}/xenomai-${_xenover}"

  ./configure --build=i686-pc-linux-gnu --host=arm-none-linux-gnueabi --enable-arm-mach=at91sam9 --enable-arm-tsc --enable-arm-eabi --prefix=/usr/xenomai
  
  make

}

package_linux-xenomai-AT91G20() {
  pkgdesc="The Linux Kernel and modules"
  groups=('base')
  depends=('coreutils' 'linux-firmware' 'module-init-tools>=3.16' )
  optdepends=('crda: to set the correct wireless channels of your country')
  provides=('kernel26')
  conflicts=('kernel26')
  replaces=('kernel26')
  #install=${pkgname}.install

  cd "${srcdir}/linux-${pkgver}"

  KARCH=arm

  # get kernel version
  _kernver="$(make -fMakefile ARCH=${CARCH} kernelrelease)"

  mkdir -p "${pkgdir}"/{lib/modules,lib/firmware,boot}
  make INSTALL_MOD_PATH="${pkgdir}" modules_install
  #cp arch/$KARCH/boot/uImage "${pkgdir}/boot/uImage"
  cp uImage "${pkgdir}/boot/uImage"


  # set correct depmod command for install
#  sed \
#    -e  "s/KERNEL_NAME=.*/KERNEL_NAME=${_kernelname}/g" \
#    -e  "s/KERNEL_VERSION=.*/KERNEL_VERSION=${_kernver}/g" \
#    -i "${startdir}/${pkgname}.install"

  # remove build and source links
  rm -f "${pkgdir}"/lib/modules/${_kernver}/{source,build}
  # remove the firmware
  rm -rf "${pkgdir}/lib/firmware"
  # gzip -9 all modules to safe 100MB of space
  find "${pkgdir}" -name '*.ko' -exec gzip -9 {} \;

}

package_xenomai() {
  pkgdesc="xenomai headers and binaries"
  provides=('xenomai')
  conflicts=('xenomai')
  replaces=('xenomai')

  mkdir -p "${pkgdir}/usr/xenomai"
  cd "${srcdir}/xenomai-${_xenover}"
  
  make install DESTDIR="${pkgdir}"

}

package_linux-headers-xenomai-AT91G20() {
  pkgdesc="Header files and scripts for building modules for linux kernel"
  provides=('kernel26-headers')
  conflicts=('kernel26-headers')
  replaces=('kernel26-headers')

  mkdir -p "${pkgdir}/lib/modules/${_kernver}"

  cd "${pkgdir}/lib/modules/${_kernver}"
  ln -sf ../../../usr/src/linux-${_kernver} build

  cd "${srcdir}/linux-${pkgver}"
  install -D -m644 Makefile \
    "${pkgdir}/usr/src/linux-${_kernver}/Makefile"
  install -D -m644 kernel/Makefile \
    "${pkgdir}/usr/src/linux-${_kernver}/kernel/Makefile"
  install -D -m644 .config \
    "${pkgdir}/usr/src/linux-${_kernver}/.config"

  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include"

  for i in acpi asm-generic config crypto drm generated linux math-emu \
    media net pcmcia scsi sound trace video xen; do
    cp -a include/${i} "${pkgdir}/usr/src/linux-${_kernver}/include/"
  done

  # copy arch includes for external modules
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH
  cp -a arch/$KARCH/include ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/
  mkdir -p ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/mach-at91
  cp -a arch/$KARCH/mach-at91/include ${pkgdir}/usr/src/linux-${_kernver}/arch/$KARCH/mach-at91/

  # copy files necessary for later builds, like nvidia and vmware
  cp Module.symvers "${pkgdir}/usr/src/linux-${_kernver}"
  cp -a scripts "${pkgdir}/usr/src/linux-${_kernver}"

  # fix permissions on scripts dir
  chmod og-w -R "${pkgdir}/usr/src/linux-${_kernver}/scripts"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/.tmp_versions"

  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/kernel"

  cp arch/${KARCH}/Makefile "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/"

  if [ "${CARCH}" = "i686" ]; then
    cp arch/${KARCH}/Makefile_32.cpu "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/"
  fi

  cp arch/${KARCH}/kernel/asm-offsets.s "${pkgdir}/usr/src/linux-${_kernver}/arch/${KARCH}/kernel/"

  # add headers for lirc package
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video"

  cp drivers/media/video/*.h  "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/"

  for i in bt8xx cpia2 cx25840 cx88 em28xx et61x251 pwc saa7134 sn9c102; do
    mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/${i}"
    cp -a drivers/media/video/${i}/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/video/${i}"
  done

  # add docbook makefile
  install -D -m644 Documentation/DocBook/Makefile \
    "${pkgdir}/usr/src/linux-${_kernver}/Documentation/DocBook/Makefile"

  # add dm headers
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/md"
  cp drivers/md/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/md"

  # add inotify.h
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include/linux"
  cp include/linux/inotify.h "${pkgdir}/usr/src/linux-${_kernver}/include/linux/"

  # add wireless headers
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/"
  cp net/mac80211/*.h "${pkgdir}/usr/src/linux-${_kernver}/net/mac80211/"

  # add dvb headers for external modules
  # in reference to:
  # http://bugs.archlinux.org/task/9912
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core"
  cp drivers/media/dvb/dvb-core/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-core/"
  # and...
  # http://bugs.archlinux.org/task/11194
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/"
  cp include/config/dvb/*.h "${pkgdir}/usr/src/linux-${_kernver}/include/config/dvb/"

  # add dvb headers for http://mcentral.de/hg/~mrec/em28xx-new
  # in reference to:
  # http://bugs.archlinux.org/task/13146
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"
  cp drivers/media/dvb/frontends/lgdt330x.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"
  cp drivers/media/video/msp3400-driver.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"

  # add dvb headers
  # in reference to:
  # http://bugs.archlinux.org/task/20402
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb"
  cp drivers/media/dvb/dvb-usb/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/dvb-usb/"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends"
  cp drivers/media/dvb/frontends/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/dvb/frontends/"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners"
  cp drivers/media/common/tuners/*.h "${pkgdir}/usr/src/linux-${_kernver}/drivers/media/common/tuners/"

  # add xfs and shmem for aufs building
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/fs/xfs"
  mkdir -p "${pkgdir}/usr/src/linux-${_kernver}/mm"
  cp fs/xfs/xfs_sb.h "${pkgdir}/usr/src/linux-${_kernver}/fs/xfs/xfs_sb.h"

  # copy in Kconfig files
  for i in `find . -name "Kconfig*"`; do
    mkdir -p "${pkgdir}"/usr/src/linux-${_kernver}/`echo ${i} | sed 's|/Kconfig.*||'`
    cp ${i} "${pkgdir}/usr/src/linux-${_kernver}/${i}"
  done

  chown -R root.root "${pkgdir}/usr/src/linux-${_kernver}"
  find "${pkgdir}/usr/src/linux-${_kernver}" -type d -exec chmod 755 {} \;

  # strip scripts directory
  find "${pkgdir}/usr/src/linux-${_kernver}/scripts" -type f -perm -u+w 2>/dev/null | while read binary ; do
    case "$(file -bi "${binary}")" in
      *application/x-sharedlib*) # Libraries (.so)
        /usr/bin/strip ${STRIP_SHARED} "${binary}";;
      *application/x-archive*) # Libraries (.a)
        /usr/bin/strip ${STRIP_STATIC} "${binary}";;
      *application/x-executable*) # Binaries
        /usr/bin/strip ${STRIP_BINARIES} "${binary}";;
    esac
  done

  # remove unneeded architectures
  rm -rf "${pkgdir}"/usr/src/linux-${_kernver}/arch/{alpha,arm26,avr32,blackfin,cris,frv,h8300,ia64,m32r,m68k,m68knommu,mips,microblaze,mn10300,parisc,powerpc,ppc,s390,sh,sh64,sparc,sparc64,um,v850,x86,xtensa}
}