-#!/bin/bash -exu
+#!/bin/bash
#
-# Copyright (C) 2016-2019 - Michael Jeanson <mjeanson@efficios.com>
+# Copyright (C) 2016-2019 Michael Jeanson <mjeanson@efficios.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
+set -exu
+
# Parameters
-arch=${arch:-}
+platforms=${platforms:-}
+# Derive arch from label if it isn't set
+if [ -z "${arch:-}" ] ; then
+ # Labels may be platform specific, eg. jammy-amd64, deb12-armhf
+ regex='[[:alnum:]]+-([[:alnum:]]+)'
+ if [[ "${platforms}" =~ ${regex} ]] ; then
+ arch="${BASH_REMATCH[1]}"
+ else
+ arch="${platforms:-}"
+ fi
+fi
cross_arch=${cross_arch:-}
ktag=${ktag:-}
kgitrepo=${kgitrepo:-}
mversion=${mversion:-}
mgitrepo=${mgitrepo:-}
-
## FUNCTIONS ##
# Kernel version compare functions
}
verlt() {
+ # shellcheck disable=SC2015
[ "$1" = "$2" ] && return 1 || verlte "$1" "$2"
}
}
vergt() {
+ # shellcheck disable=SC2015
[ "$1" = "$2" ] && return 1 || vergte "$1" "$2"
}
git_clone_modules_sources() {
mkdir -p "$MODULES_GIT_DIR"
- git clone --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR"
+
+ # If the version starts with "refs/", checkout the specific git ref, otherwise treat it
+ # as a branch name.
+ if [ "${mversion:0:5}" = "refs/" ]; then
+ git clone --no-tags --depth=1 "${mgitrepo}" "$MODULES_GIT_DIR"
+ (cd "$MODULES_GIT_DIR" && git fetch origin "${mversion}" && git checkout FETCH_HEAD)
+ else
+ git clone --no-tags --depth=1 -b "${mversion}" "${mgitrepo}" "$MODULES_GIT_DIR"
+ fi
}
# Checkout a shallow kernel tree of the specified tag
cd -
}
+list_gccs() {
+ local gccs
+ gccs=()
+ IFS=: read -r -a path_array <<< "$PATH"
+ while read -r gcc ; do
+ gccs+=("$gcc")
+ done < <(find "${path_array[@]}" -maxdepth 1 -regex '.*/gcc-[0-9\.]+$' -printf '%f\n' | sort -t- -k2 -V -r)
+ echo "${gccs[@]}"
+}
+
# Find the most recent GCC version supported by the kernel sources
select_compiler() {
local selected_cc
set +e
- for cc in gcc-5 gcc-4.8; do
+ for cc in $(list_gccs) ; do
if "${CROSS_COMPILE:-}${cc}" -I include/ -D__LINUX_COMPILER_H -D__LINUX_COMPILER_TYPES_H -E include/linux/compiler-gcc.h; then
selected_cc="$cc"
break
exit 0
fi
fi
+
+ # Disable riscv64 config generation, we don't have a toolchain on bionic
+ sed -i 's/riscv64 //' debian.master/etc/kernelconfig
+
fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
- fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=.
+
+ # Hack for kernel Ubuntu-hwe-5.8
+ # The debian/control file is produced by the clean target above, so this
+ # check needs to happen afterwards.
+ if [ ! -f "debian/compat" ] && ! grep -q debhelper-compat debian/control; then
+ echo "10" > "debian/compat"
+ fi
+
+ # genconfigs check can fail in certain cases, eg. when a more recent
+ # compiler exposes kernel configuration flags which aren't set in the
+ # Ubuntu annotations.
+ # In any case, the configuration will be updated with any missing values
+ # later in our build script.
+ fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=. do_skip_checks=true
cp CONFIGS/"${ubuntu_config}" .config
;;
scripts/config --disable CONFIG_IGBVF
fi
+ # Don't fail the build on warnings
+ scripts/config --disable CONFIG_WERROR
+
# Set required options
scripts/config --enable CONFIG_TRACEPOINTS
scripts/config --enable CONFIG_KALLSYMS
scripts/config --enable CONFIG_EVENT_TRACING
scripts/config --enable CONFIG_KRETPROBES
+ # FIXME: disable objtool on vmlinux, it OOMs on allyesconfig
+ sed -i 's/objtool_link vmlinux.o//' scripts/link-vmlinux.sh || true
+ # Starting with v6.1-rc6
+ sed -i 's/^objtool-enabled := .*/objtool-enabled := /' scripts/Makefile.vmlinux_o || true
+
+ # Disable SORTTAB
+ sed -i 's/is_enabled CONFIG_BUILDTIME_TABLE_SORT/is_enabled CONFIG_NONEXISTANT/' scripts/link-vmlinux.sh || true
+
# Debug
#cat .config
# Save the kernel and modules
mkdir -p "$LINUX_INSTOBJ_DIR/boot"
make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install CC="$CC"
- make INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC"
+ make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install CC="$CC"
rm -f "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source" "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/build"
ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
ln -s ../../../../sources "$LINUX_INSTOBJ_DIR/lib/modules/${krelease}/source"
# On powerpc 32bits this object is required to link modules
if [ "${karch}" = "powerpc" ]; then
- if [ "x$(scripts/config -s CONFIG_PPC64)" = "xn" ]; then
+ if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
+ :
+ else
cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/"
fi
fi
touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h"
# Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
- cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
+ if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then
+ cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
+ fi
# Finally clean the object files from the full source tree
make clean
# On powerpc 32bits this object is required to link modules
if [ "${karch}" = "powerpc" ]; then
- if [ "x$(scripts/config -s CONFIG_PPC64)" = "xn" ]; then
+ if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
+ :
+ else
make arch/powerpc/lib/crtsavres.o CC="$CC"
fi
fi
kversion=$(make -C "$LINUX_HDROBJ_DIR" -s kernelversion)
+ # Try to catch some compatibility problems by turning some
+ # warnings into errors.
+ #export KCFLAGS="$KCFLAGS -Wall -Werror"
+
# Enter lttng-modules source dir
cd "${MODULES_GIT_DIR}"
url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')"
obj_name="linux.tar.bz2"
-obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/$arch/${cross_arch:-native}"
+
+if [ "x${cross_arch}" = "x" ]; then
+ obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platform}/$arch/native"
+else
+ obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platform}/${cross_arch}"
+fi
+
obj_url="$obj_url_prefix/$obj_name"
set +e
-s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url"
+# In s3cmd 2.3, the return code of get when an object does not exist (64)
+# is different than in 2.2 (12). The return codes of 's3cmd info' are
+# consistent between 2.2 and 2.3.
+s3cmd -c "$WORKSPACE/.s3cfg" info "$obj_url"
ret=$?
set -e
case "$ret" in
"0")
+ s3cmd -c "$WORKSPACE/.s3cfg" get "$obj_url"
extract_archive_obj
;;
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