ci: Use mold for x86-64 and AArch64 builds

mold is a fancy new linker that's really fast.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6877
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Eric Engestrom <eric@igalia.com>
Reviewed-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17992>

.gitlab-ci/container/build-mold.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -ex
+ 
+export MOLD_VERSION="1.4.1"
+git clone -b v"$MOLD_VERSION" --single-branch --depth 1 https://github.com/rui314/mold.git
+cd mold
+make
+make install
+cd ..
+rm -rf mold

.gitlab-ci/container/container_pre_build.sh

@@ -17,7 +17,8 @@ export PATH=$CCACHE_PATH:$PATH
 export CC="${CCACHE_PATH}/gcc"
 export CXX="${CCACHE_PATH}/g++"
 
-# Force linkers to gold, since it's so much faster for building.  We can't use
+# When not using the mold linker (e.g. unsupported architecture), force
+# linkers to gold, since it's so much faster for building.  We can't use
 # lld because we're on old debian and it's buggy.  ming fails meson builds
 # with it with "meson.build:21:0: ERROR: Unable to determine dynamic linker"
 find /usr/bin -name \*-ld -o -name ld | \

.gitlab-ci/container/debian/arm_build.sh

@@ -8,8 +8,15 @@ sed -i -e 's/http:\/\/deb/https:\/\/deb/g' /etc/apt/sources.list
 echo 'deb https://deb.debian.org/debian buster main' >/etc/apt/sources.list.d/buster.list
 apt-get update
 
+# Ephemeral packages (installed for this script and removed again at
+# the end)
+STABLE_EPHEMERAL=" \
+        libssl-dev \
+        "
+
 apt-get -y install \
 	${EXTRA_LOCAL_PACKAGES} \
+	${STABLE_EPHEMERAL} \
 	abootimg \
 	autoconf \
 	automake \
@@ -68,8 +75,12 @@ arch=armhf
 
 . .gitlab-ci/container/container_pre_build.sh
 
+. .gitlab-ci/container/build-mold.sh
+
 # dependencies where we want a specific version
 EXTRA_MESON_ARGS=
 . .gitlab-ci/container/build-libdrm.sh
 
+apt-get purge -y $STABLE_EPHEMERAL
+
 . .gitlab-ci/container/container_post_build.sh

.gitlab-ci/container/debian/x86_build.sh

@@ -12,6 +12,7 @@ STABLE_EPHEMERAL=" \
       autotools-dev \
       bzip2 \
       libtool \
+      libssl-dev \
       python3-pip \
       "
 
@@ -58,6 +59,8 @@ export              XORG_RELEASES=https://xorg.freedesktop.org/releases/individu
 
 export         XORGMACROS_VERSION=util-macros-1.19.0
 
+. .gitlab-ci/container/build-mold.sh
+
 wget $XORG_RELEASES/util/$XORGMACROS_VERSION.tar.bz2
 tar -xvf $XORGMACROS_VERSION.tar.bz2 && rm $XORGMACROS_VERSION.tar.bz2
 cd $XORGMACROS_VERSION; ./configure; make install; cd ..

.gitlab-ci/container/fedora/x86_build.sh

@@ -8,10 +8,12 @@ EPHEMERAL="
         autoconf
         automake
         bzip2
+        cmake
         git
         libtool
         pkgconfig(epoxy)
         pkgconfig(gbm)
+        pkgconfig(openssl)
         unzip
         wget
         xz
@@ -83,6 +85,8 @@ tar -xvf $XORGMACROS_VERSION.tar.bz2 && rm $XORGMACROS_VERSION.tar.bz2
 cd $XORGMACROS_VERSION; ./configure; make install; cd ..
 rm -rf $XORGMACROS_VERSION
 
+. .gitlab-ci/container/build-mold.sh
+
 . .gitlab-ci/container/build-libdrm.sh
 
 . .gitlab-ci/container/build-wayland.sh

.gitlab-ci/image-tags.yml

@@ -4,6 +4,7 @@ variables:
 
    DEBIAN_X86_BUILD_IMAGE_PATH: "debian/x86_build"
    DEBIAN_BUILD_TAG: "2022-08-22-drop-llvm9"
+   DEBIAN_BUILD_TAG: "2022-08-23-mold"
 
    DEBIAN_X86_BUILD_MINGW_IMAGE_PATH: "debian/x86_build-mingw"
    DEBIAN_BUILD_MINGW_TAG: "2022-08-17-bump"
@@ -14,7 +15,7 @@ variables:
    DEBIAN_X86_TEST_GL_TAG: "2022-08-17-bump"
    DEBIAN_X86_TEST_VK_TAG: "2022-08-17-bump"
 
-   FEDORA_X86_BUILD_TAG: "2022-08-17-bump"
+   FEDORA_X86_BUILD_TAG: "2022-08-23-mold"
    KERNEL_ROOTFS_TAG: "2022-08-17-bump"
 
    WINDOWS_X64_VS_PATH: "windows/x64_vs"

.gitlab-ci/meson/build.sh

@@ -79,7 +79,15 @@ meson _build --native-file=native.file \
       ${EXTRA_OPTION}
 cd _build
 meson configure
+if command -V mold &> /dev/null ; then
+    mold --run ninja
+else
     ninja
+fi
 LC_ALL=C.UTF-8 meson test --num-processes ${FDO_CI_CONCURRENT:-4} --print-errorlogs ${MESON_TEST_ARGS}
+if command -V mold &> /dev/null ; then
+    mold --run ninja install
+else
     ninja install
+fi
 cd ..