z-turn/linux kernel のビルド のバックアップ(No.2)

VirtualBox に Debian8 を新規インストール †

LANG:console
$ export LANG=C
$ su
 Password: (rootパスワードを入力)
# export LANG=C
# apt install etckeeper
 The following extra packages will be installed:
   git git-man liberror-perl rsync
 Suggested packages:
   sudo git-daemon-run git-daemon-sysvinit git-doc git-el git-email git-gui
   gitk gitweb git-arch git-cvs git-mediawiki git-svn
 The following NEW packages will be installed:
   etckeeper git git-man liberror-perl rsync
 0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.
 Need to get 5065 kB of archives.
 After this operation, 26.7 MB of additional disk space will be used.
 Do you want to continue? [Y/n]
 ...
# apt install sudo jed
 The following extra packages will be installed:
   jed-common libonig2 libslang2-modules slsh
 Suggested packages:
   gpm
 The following NEW packages will be installed:
   jed jed-common libonig2 libslang2-modules slsh sudo
 0 upgraded, 6 newly installed, 0 to remove and 0 not upgraded.
 Need to get 1892 kB of archives.
 After this operation, 5984 kB of additional disk space will be used.
 Do you want to continue? [Y/n]
 ...
# adduser osamu sudo
 Adding user `osamu' to group `sudo' ...
 Adding user osamu to group sudo
 Done
# exit
$ sudo echo ok
 
 We trust you have received the usual lecture from the local System
 Administrator. It usually boils down to these three things:

     #1) Respect the privacy of others.
     #2) Think before you type.
     #3) With great power comes great responsibility.

 [sudo] password for osamu:
 osamu is not in the sudoers file.  This incident will be reported.
$ groups
 osamu cdrom floppy audio dip video plugdev netdev bluetooth
$ groups osamu
 osamu: osamu cdrom floppy sudo audio dip video plugdev netdev bluetooth
$ exit

LANG:console
$ export LANG=C
$ groups
 osamu cdrom floppy sudo audio dip video plugdev netdev bluetooth
$ sudo ifconfig
 [sudo] password for osamu:
 eth0     ...
          ...

 lo       ...
          ...

$ sudo jed /etc/network/interfaces
 + allow-hotplug eth1
 + iface eth1_inet dhcp
$ sudo service networking restart
$ sudo service networking restart  # なぜか２回必要？
$ sudo ifconfig eth1
 eth1     ...
          inet addr:192.168.56.103
          ...

クロスコンパイル環境の整備 †

LANG:console
### 基本的な開発環境（git と make など）
$ sudo apt-get install git-core build-essential
### make menuconfig のため
$ sudo apt-get install ncurses-dev
### uImage を作成するため
$ sudo apt-get install u-boot-tools

# gcc -v
 Using built-in specs.
 COLLECT_GCC=gcc
 COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.6/lto-wrapper
 Target: arm-linux-gnueabihf
 Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.3-1ubuntu5' 
   --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs 
   --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 
   --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib 
   --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 
   --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug 
   --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc 
   --enable-multilib --disable-sjlj-exceptions --with-arch=armv7-a --with-float=hard 
   --with-fpu=vfpv3-d16 --with-mode=thumb --disable-werror --enable-checking=release 
   --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf
 Thread model: posix
 gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
$ uname -a
 Linux localhost.localdomain 3.15.0-xilinx #9 SMP PREEMPT Tue May 26 17:26:14 CST 2015 armv7l armv7l armv7l GNU/Linux

LANG:console
$ jed /etc/apt/sources.list.d/crosstools.list
 + deb http://emdebian.org/tools/debian/ jessie main
$ curl http://emdebian.org/tools/debian/emdebian-toolchain-archive.key | sudo apt-key add -
 -bash: curl: コマンドが見つかりません
 gpg: 有効なOpenPGPデータが見つかりません。
$ sudo apt install curl
$ curl http://emdebian.org/tools/debian/emdebian-toolchain-archive.key | sudo apt-key add -

LANG:console
$ sudo dpkg --add-architecture armhf
$ sudo apt-get update
$ sudo apt-get install crossbuild-essential-armhf
 提案パッケージ:
   binutils-doc gcc-4.9-locales binutils-multiarch gcc-4.9-doc libstdc++6-4.9-dbg:armhf libgcc1-dbg:armhf
   libgomp1-dbg:armhf libitm1-dbg:armhf libatomic1-dbg:armhf libasan1-dbg:armhf liblsan0-dbg:armhf
   libtsan0-dbg:armhf libubsan0-dbg:armhf libcilkrts5-dbg:armhf libquadmath-dbg:armhf glibc-doc:armhf locales:armhf
   manpages-dev:armhf libstdc++-4.9-doc:armhf libyaml-shell-perl
$ arm-linux-gnueabihf-gcc --version
 arm-linux-gnueabihf-gcc ( 4.9.2-10) 4.9.2
 Copyright (C) 2014 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

LANG:console
$ mkdir arm-hello
$ cd arm-hello
$ cat > hello.c
 #include <stdio.h>
 void main()
 {
   puts("Hello world!");
 }
$ arm-linux-gnueabihf-gcc hello.c -o hello
$ file hello
 a.out: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-armhf.so.3, for GNU/Linux 2.6.32, BuildID[sha1]=94a2aefddb7ebe7a244405372693ca3758564470, not stripped

LANG:console
$ sudo apt-get install qemu-user-static
$ qemu-arm-static ./hello
 Hello world!

LANG:console
# lsblk
 NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
 mmcblk0     179:0    0   7.4G  0 disk
 |-mmcblk0p1 179:1    0    64M  0 part
 `-mmcblk0p2 179:2    0   7.4G  0 part /
 mtdblock0    31:0    0   512K  0 disk
 mtdblock1    31:1    0   128K  0 disk
 mtdblock2    31:2    0   4.4M  0 disk
 mtdblock3    31:3    0   4.5M  0 disk
 mtdblock4    31:4    0    64K  0 disk
 mtdblock5    31:5    0     6M  0 disk
 mtdblock6    31:6    0   448K  0 disk
# mount /dev/mmcblk0p1 /media/BOOT
 media-BOOT.mount
# cp -r /media/BOOT/arm-hello .
# cd arm-hello/
# file hello
 hello: ELF 32-bit LSB  executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=94a2aefddb7ebe7a244405372693ca3758564470, not stripped
# ./hello
 Hello world!

Xilinx Linux for Zynq AP SoC のビルド †

最新ソースファイルから uImage をビルドする。

http://blog.kmckk.com/archives/4777624.html を見ながら

LANG:console
$ git clone https://github.com/Xilinx/linux-xlnx.git
$ git checkout xilinx-v2016.4
$ export CROSS_COMPILE=arm-linux-gnueabihf-
$ make ARCH=arm xilinx_zynq_defconfig
$ make ARCH=arm menuconfig
 メニュー形式でカーネル設定を変更可能
   Device Drivers --->
     Userspace I/O drivers --->
       <*> Userspace I/O platform driver with generic IRQ handling
       <*> Xilinx AXI Performance Monitor driver
 を確認（初めからマークされているはず）
$ make ARCH=arm UIMAGE_LOADADDR=0x8000 uImage
   ...
   LD      arch/arm/boot/compressed/vmlinux
   OBJCOPY arch/arm/boot/zImage
   Kernel: arch/arm/boot/zImage is ready
   Kernel: arch/arm/boot/Image is ready
   Kernel: arch/arm/boot/zImage is ready
   UIMAGE  arch/arm/boot/uImage
 Image Name:   Linux-4.6.0-xilinx
 Created:      Thu Feb  2 02:05:34 2017
 Image Type:   ARM Linux Kernel Image (uncompressed)
 Data Size:    3848368 Bytes = 3758.17 kB = 3.67 MB
 Load Address: 00008000
 Entry Point:  00008000
   Image arch/arm/boot/uImage is ready
$ ls -l arch/arm/boot/uImage
 -rw-r--r-- 1 osamu osamu 3848432  2月  2 02:05 arch/arm/boot/uImage
$

modules もビルドする

LANG:console
$ make ARCH=arm modules
   ...
   Building modules, stage 2.
   MODPOST 23 modules
   CC      crypto/drbg.mod.o
   LD [M]  crypto/drbg.ko
   CC      crypto/echainiv.mod.o
   LD [M]  crypto/echainiv.ko
   CC      crypto/hmac.mod.o
   LD [M]  crypto/hmac.ko
   CC      crypto/jitterentropy_rng.mod.o
   LD [M]  crypto/jitterentropy_rng.ko
   CC      crypto/sha256_generic.mod.o
   LD [M]  crypto/sha256_generic.ko
   CC      drivers/remoteproc/mb_remoteproc.mod.o
   LD [M]  drivers/remoteproc/mb_remoteproc.ko
   CC      drivers/remoteproc/remoteproc.mod.o
   LD [M]  drivers/remoteproc/remoteproc.ko
   CC      drivers/remoteproc/zynq_remoteproc.mod.o
   LD [M]  drivers/remoteproc/zynq_remoteproc.ko
   CC      drivers/rpmsg/virtio_rpmsg_bus.mod.o
   LD [M]  drivers/rpmsg/virtio_rpmsg_bus.ko
   CC      drivers/usb/gadget/function/usb_f_mass_storage.mod.o
   LD [M]  drivers/usb/gadget/function/usb_f_mass_storage.ko
   CC      drivers/usb/gadget/function/usb_f_ss_lb.mod.o
   LD [M]  drivers/usb/gadget/function/usb_f_ss_lb.ko
   CC      drivers/usb/gadget/legacy/g_zero.mod.o
   LD [M]  drivers/usb/gadget/legacy/g_zero.ko
   CC      drivers/usb/gadget/libcomposite.mod.o
   LD [M]  drivers/usb/gadget/libcomposite.ko
   CC      drivers/virtio/virtio.mod.o
   LD [M]  drivers/virtio/virtio.ko
   CC      drivers/virtio/virtio_ring.mod.o
   LD [M]  drivers/virtio/virtio_ring.ko
   CC      fs/configfs/configfs.mod.o
   LD [M]  fs/configfs/configfs.ko
   CC      net/802/p8022.mod.o
   LD [M]  net/802/p8022.ko
   CC      net/802/psnap.mod.o
   LD [M]  net/802/psnap.ko
   CC      net/802/stp.mod.o
   LD [M]  net/802/stp.ko
   CC      net/8021q/8021q.mod.o
   LD [M]  net/8021q/8021q.ko
   CC      net/bridge/bridge.mod.o
   LD [M]  net/bridge/bridge.ko
   CC      net/ipv4/ipip.mod.o
   LD [M]  net/ipv4/ipip.ko
   CC      net/llc/llc.mod.o
   LD [M]  net/llc/llc.ko
$ ls modules*
 modules.builtin  modules.order

uImage は BOOT 領域にコピーすればいいとして、modules はどうすれば？

実機の構成を見てみる。

LANG:console
# ls /lib/modules/3.15.0-xilinx/
 kernel/            modules.builtin      modules.dep.bin  modules.softdep
 modules.alias      modules.builtin.bin  modules.devname  modules.symbols
 modules.alias.bin  modules.dep          modules.order    modules.symbols.bin
# ls /lib/modules/3.15.0-xilinx/kernel/
 crypto/  drivers/  net/
# 

真似すればいいのかしら？

USB3.0 の SD カードリーダーに VirtualBox からアクセスできるようにするために、 https://www.virtualbox.org/wiki/Downloads から落とした VirtualBox Extension Pack をダブルクリックし、VirtualBox で USB3.0 が使えるようにした。

VirtualBox の USB 設定でカードリーダーを割り当てる。

LANG:console
$ lsblk
 NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
 sda      8:0    0   20G  0 disk
 ├─sda1   8:1    0 19.1G  0 part /
 ├─sda2   8:2    0    1K  0 part
 └─sda5   8:5    0  880M  0 part [SWAP]
 sdf      8:80   1  7.4G  0 disk
 ├─sdf1   8:81   1   64M  0 part
 └─sdf2   8:82   1  7.4G  0 part
 sr0     11:0    1 1024M  0 rom
$ sudo mount /dev/sdf1 /mnt
$ ls /mnt
 7z020.bit   System Volume Information  devicetree.dtb  uImage
 7z020b.bit  arm-hello                  original        uramdisk.image.gz
 BOOT.bin    devicetree-wo-uio.dtb      uEnv.txt
$ sudo mv /mnt/uImage /mnt/uImage-orig
$ sudo cp arch/arm/boot/uImage /mnt
$ sudo umount /mnt
$ sudo mount /dev/sdf2 /mnt
$ ls -l /mnt/lib/modules
 合計 8
 drwxrwxr-x 3 1002 1002 4096  5月 26  2015 3.15.0-xilinx
 drwxr-xr-x 4 root root 4096  1月 26 19:37 3.2.0-1498-omap4
$ sudo mkdir /mnt/lib/modules/4.6.0-xilinx
$ cd linux-xlnx/
$ ls modules*
 modules.builtin  modules.order
$ sudo cp modules* /mnt/lib/modules/4.6.0-xilinx
$ sudo mkdir /mnt/lib/modules/4.6.0-xilinx/kernel
$ sudo cp --parents */*.ko */*/*.ko */*/*/*.ko /mnt/lib/modules/4.6.0-xilinx/kernel/
$ sudo umount /mnt

LANG:console
...
reading uImage
3848432 bytes read in 245 ms (15 MiB/s)
reading devicetree.dtb
11172 bytes read in 15 ms (726.6 KiB/s)
## Booting kernel from Legacy Image at 02080000 ...
   Image Name:   Linux-4.6.0-xilinx
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3848368 Bytes = 3.7 MiB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 02000000
   Booting using the fdt blob at 0x2000000
   Loading Kernel Image ... OK
   Loading Device Tree to 1fffa000, end 1ffffba3 ... OK

Starting kernel ...

ここで止まってしまった。
そんなに単純な話ではないみたい。

z-turn board に付属の uImage だと、

LANG:console
...
reading uImage
3886152 bytes read in 257 ms (14.4 MiB/s)
reading devicetree.dtb
11172 bytes read in 15 ms (726.6 KiB/s)
## Booting kernel from Legacy Image at 02080000 ...
   Image Name:   Linux-3.15.0-xilinx
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3886088 Bytes = 3.7 MiB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 02000000
   Booting using the fdt blob at 0x2000000
   Loading Kernel Image ... OK
   Loading Device Tree to 1fffa000, end 1ffffba3 ... OK

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 3.15.0-xilinx (tom@dev-server) (gcc version 4.6.1 (Sourcery CodeBench Lite 2011.09-50) ) #9 SMP PREEMPT Tue May 26 17:26:14 CST 2015
CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=18c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: MYIR Z-turn Development Board
cma: CMA: reserved 128 MiB at 27800000
Memory policy: Data cache writealloc
PERCPU: Embedded 8 pages/cpu @e719c000 s9088 r8192 d15488 u32768
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 195088

のようになる。

ちゃんと調べなきゃ。

u-boot のビルド †

• http://msyksphinz.hatenablog.com/entry/2016/02/27/020000
• http://xilinx.wikidot.com/zynq-uboot

を見ながら

https://github.com/Xilinx/u-boot-xlnx

LANG:console
$ git clone https://github.com/Xilinx/u-boot-xlnx.git
 Cloning into 'u-boot-xlnx'...
 remote: Counting objects: 455718, done.
 remote: Total 455718 (delta 0), reused 0 (delta 0), pack-reused 455718
 Receiving objects: 100% (455718/455718), 114.43 MiB | 5.26 MiB/s, done.
 Resolving deltas: 100% (364615/364615), done.
 Checking connectivity... done.
$ ls
 u-boot-xlnx/
$ cd u-boot-xlnx
$ git tag
 ..
 xilinx-v2016.2
 xilinx-v2016.3
 xilinx-v2016.4
 xilinx_microblaze
 xilinx_pele_v2010.09
 xilinx_pre_little_endian
 zynq-beta-v2.2
$ git checkout xilinx-v2016.4
 Note: checking out 'xilinx-v2016.4'.
 
 You are in 'detached HEAD' state. You can look around, make experimental
 changes and commit them, and you can discard any commits you make in this
 state without impacting any branches by performing another checkout.
 
 If you want to create a new branch to retain commits you create, you may
 do so (now or later) by using -b with the checkout command again. Example:
 
   git checkout -b new_branch_name
 
 HEAD is now at 0b94ce5... ARM64: zynqmp: usb1 on zcu100 is not peripheral
$ export CROSS_COMPILE=arm-linux-gnueabihf-

まだ途中。