[Buildroot] [PATCH v4 6/9] board/qemu: add post-image script for gitlab qemu testing

Le 10/02/2020 ? 14:13, Thomas Petazzoni a ?crit?:

On Sun,  9 Feb 2020 19:03:24 +0100
Romain Naour [off-list ref] wrote:

quoted

This commit add the same post-image script for each qemu board
in order to generate start-qemu.sh in BINARIES_DIR.
The start-qemu.sh script can be used by Buildroot user to start
Qemu or by a gitlab CI.

To find the correct qemu command line in the readme.txt, we use
the second post script argument which must contain "$(BR2_DEFCONFIG)"

  BR2_ROOTFS_POST_SCRIPT_ARGS="$(BR2_DEFCONFIG)"

Doing a basename allow to retrieve the name of the defconfig
file (ex: qemu_aarch64_virt_defconfig) that should match
on on the "tag" previously introduced in the readme.txt.

The script start-qemu.sh is able to modify the qemu command
line if CI_JOB_NAME defined in the environment. This allow
to disable the graphical output and redirect serial I/Os to
console.

Only sh4/sh4eb needs a special handling by adding
"-serial stdio -display none" instead of "-display none".

Signed-off-by: Romain Naour <redacted>

Is it really a good idea to automatically start Qemu at the end of the
build of those defconfigs ? While I understand how it makes sense for
Gitlab CI, it is not very practical/convenient for normal users.

Qemu is not started automatically at the end of the build.
The build process only create the script start-qemu.sh that must be called by
the user (or by the gitlab-ci).

Can't we start the test under Qemu by a separate command from
.gitlab-ci.yml instead?

This is what this patch is doing :)

Best regards,
Romain

Thanks,

Thomas