Using Harmattan Platform SDK
Prerequisites
Scratchbox targets
The installed Scratchbox environment includes the following targets for MeeGo 1.2 Harmattan development.
- HARMATTAN_X86: Mainly used for the development of applications.
- HARMATTAN_ARMEL: Mainly used for cross-compilation to generate ARMEL binaries that can run on the target device.
The targets are configured to use the following:
- Debian Squeeze devkit, which provides tools from Debian Squeeze baseline.
- Perl devkit, which provides perl libraries.
- Code Sourcery CS2009q3 eglibc toolchains.
Development rootstraps containing the needed headers and libraries are pre-installed on both targets.
Logging into Scratchbox
Since Scratchbox is a chroot environment, you must log in just as you would with a real host. Normal users must be added as Scratchbox users before they can log into Scratchbox. This is already handled by the SDK installer. At your host prompt, enter the following command:
$ scratchbox
The Scratchbox welcome message is displayed:
Welcome to Scratchbox, the cross-compilation toolkit! Use 'sb-menu' to change your compilation target. See /scratchbox/doc/ for documentation. [sbox-HARMATTAN_X86: ~] >
The Scratchbox prompt [sbox-HARMATTAN_X86: ~] > shows that you are in the Scratchbox environment and using a target called "HARMATTAN_X86".
Using Harmattan UI inside Scratchbox
To run any applications inside Scratchbox, you need Xephyr X11 server software on your host. Xephyr is an X11 server that provides a device screen that shows the application windows and visual elements on your host. It is available on most Linux distributions. This software is pre-installed on the provided vmware image.
1. Outside Scratchbox, start Xephyr. Enter the following command:
Xephyr :2 -host-cursor -screen 480x854x16 -dpi 96 -ac +extension Composite &
2. Inside Scratchbox, start MeeGo Touch Framework. Enter the following command:
[sbox-HARMATTAN_X86: ~] > meego-sb-session start
The home screen runs inside the Xephyr window, as displayed in the following figure:
To stop the UI framework, enter the following command:
[sbox-HARMATTAN_X86: ~] > meego-sb-session stop
Running custom applications inside Scratchbox
To run your own application inside Scratchbox, enter the following command:
[sbox-HARMATTAN_X86: ~] > meego-run <your application name>
Using Scratchbox
Switching between targets
To switch from one target to another, enter the following command:
sb-conf se <target name>
Resetting target rootstrap
To clear the rootstrap content from your current Scratchbox target, enter the following command:
sb-conf re -f
Installing a new rootstrap
Prerequisite:
To install a new rootstrap, enter the following command:
sb-conf in <rootstrap name>
Killing all trailing processes
To kill all trailing processes inside your target, enter the following command:
sb-conf killall
Showing your target configuration
To display your current target configuration, enter the following command:
sb-conf sh
Viewing all available commands and options
To view the complete list of commands and options available, enter the following command:
[sbox-HARMATTAN_X86: ~] > sb-conf -h
Usage: sb-conf <ACTION> [<OPTIONS>]
ACTION OPTIONS ACTION OPTIONS
------ ------- ------ -------
setup [<TARGET>] st [<TARGET>]
[--compiler=<COMPILER>] [-c <COMPILER>]
[--devkits=<LIST>] [-d <LIST]
[--cputransp=<METHOD>] [-t <METHOD]
[--force] [-f]
install [<TARGET>] in [<TARGET>]
[--clibrary] [-c]
[--cruntime] [-C]
[--etc] [-e]
[--devkits] [-d]
[--fakeroot] [-F]
[--gdb] [-G]
[--debug-links] [-L]
[--strace] [-S]
rootstrap [<TARGET>] rs [<TARGET>]
<FILE>|<URL> <FILE>|<URL>
select [<TARGET>] se [<TARGET>]
reset [<TARGET>] re [<TARGET>]
[--force] [-f]
killall [--signal=<SIGNAL>] ka [-s <SIGNAL>]
remove [<TARGET>] rm [<TARGET>]
[--force] [-f]
show [<TARGET>] sh [<TARGET>]
[--compiler] [-c]
[--compiler-arch] [-A]
[--compiler-subarch] [-S]
[--compiler-clib] [-C]
[--devkits] [-d]
[--cputransp] [-t]
list [--compilers] ls [-c]
[--devkits] [-d]
[--cputransps] [-t]
[--targets] [-T]
[--sessions] [-S]
current cu
version ve
See 'sb-menu' for interactive versions of these actions.
[sbox-HARMATTAN_X86: ~] >
Starting the dialog-based interface for sb-conf
The sb-menu command provides a dialog-based interface to configure and modify your Scratchbox targets. To start the interface, enter the following command:
sb-menu
Creating additional Harmattan targets manually
To create additional targets for Harmattan:
1. Create additional x86 and ARMEL targets for Harmattan from any Scratchbox target (in this example, HARMATTAN_X86 target is used). Enter the following command:
[sbox-HARMATTAN_X86: ~] > sb-conf st test_armel -c cs2009q3-eglibc2.10-armv7-hard -d qemu:perl:debian-squeeze:hashutils-squeeze-sdk -t qemu-arm-sb [sbox-HARMATTAN_X86: ~] > sb-conf st test_x86 -c cs2009q3-eglibc2.10-i486 -d perl:debian-squeeze:hashutils-squeeze-sdk -t none
2. Install the available development rootstraps to the newly created targets.
- For test_armel, enter the following commands:
[sbox-HARMATTAN_X86: ~] > sb-conf se test_armel [sbox-test_armel: ~] > sb-conf rs <rootstrap for ARMEL target>.tgz [sbox-test_armel: ~] > sb-conf in -edFL
- For test_x86, enter the following commands:
[sbox-test_armel: ~] > sb-conf se test_x86 [sbox-test_x86: ~] > sb-conf rs <rootstrap for X86 target>.tgz [sbox-test_x86: ~] > sb-conf in -edFL