[igt-dev] [PATCH i-g-t] scripts/example-debug-error: added script for debugging compilation errors on gitlab

[Mauro Carvalho Chehab]

On Thu, 31 Aug 2023 19:02:45 +0200
Kamil Konieczny <kamil.konieczny at linux.intel.com> wrote:

> Added example script to help quick start debugging compilation
> errors seen on GitLab fdo when building new patch or patchset.
> 
> Cc: Petri Latvala <adrinael at adrinael.net>
> Cc: Mauro Carvalho Chehab <mauro.chehab at linux.intel.com>
> Signed-off-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>
> ---
>  scripts/example-debug-error.sh | 32 ++++++++++++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
>  create mode 100755 scripts/example-debug-error.sh
> 
> diff --git a/scripts/example-debug-error.sh b/scripts/example-debug-error.sh
> new file mode 100755
> index 000000000..755c90a25
> --- /dev/null
> +++ b/scripts/example-debug-error.sh
> @@ -0,0 +1,32 @@
> +#!/bin/sh
> +# SPDX-License-Identifier: MIT
> +#
> +# Copyright © 2023 Intel Corporation
> +#
> +# When you see compilation error in fdo GitLab follow link with
> +# error to find out used registry, it should be at top of log,
> +# for example:
> +# Using Docker executor with image registry.freedesktop.org/gfx-ci/igt-ci-tags/build-debian-arm64:commit-1af4386ff3086df670e10af3a2bfd89993af3b0a
> +#
> +# Take registry and put it into POD_IGT var below (default will use debian build for amd64/x64):
> +#
> +POD_IGT=registry.freedesktop.org/gfx-ci/igt-ci-tags/build-debian:commit-1af4386ff3086df670e10af3a2bfd89993af3b0a
> +
> +mkdir -p /tmp/igt-build
> +cp -R * /tmp/igt-build/
> +sudo podman run -i -t -v /tmp/igt-build/:/opt/builds --privileged ${POD_IGT}
> +
> +# you can debug now with:
> +#
> +# cd /opt/builds
> +# meson build
> +# ninja -C build
> +#
> +# or for cross-compilation for arm64 (for other arch remember to change registry):
> +#
> +# export PKG_CONFIG_PATH=/usr/lib/aarch64-linux-gnu/pkgconfig/
> +# meson --cross-file meson-cross-arm64.txt build
> +# ninja -C build

There are steps missing here, as the downloaded image doesn't contain the
cross-compiler toolchain to install the packages listed at
Dockerfile.build-debian-arm64.

On my tests, those steps are needed:

	dpkg --add-architecture arm64
	apt-get update --allow-releaseinfo-change
	apt-get install -y gcc-aarch64-linux-gnu libatomic1:arm64 libpciaccess-dev:arm64 libkmod-dev:arm64 libprocps-dev:arm64 libunwind-dev:arm64 libdw-dev:arm64 zlib1g-dev:arm64 liblzma-dev:arm64 libcairo-dev:arm64 libpixman-1-dev:arm64 libudev-dev:arm64 libgsl-dev:arm64 libasound2-dev:arm64 libjson-c-dev:arm64 libcurl4-openssl-dev:arm64 libxrandr-dev:arm64 libxv-dev:arm64 libdrm-dev:arm64 qemu-user qemu-user-static

Note: --allow-releaseinfo-change is needed due to the downloaded
from registry.freedesktop.org is already EOL.

Still, something else is missing, as ld is failing with:

/usr/lib/gcc-cross/aarch64-linux-gnu/8/../../../../aarch64-linux-gnu/bin/ld: skipping incompatible /usr/lib/x86_64-linux-gnu/libm.a when searching for -lm
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

Please fix the instructions.

Regards,
Mauro