-#!/bin/sh -exu
+#!/bin/bash
#
-# Copyright (C) 2016 - 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=${arch:-amd64}
+cross_arch=${cross_arch:-}
+ktag=${ktag:-}
+kgitrepo=${kgitrepo:-}
+mversion=${mversion:-}
+mgitrepo=${mgitrepo:-}
+
+
+## FUNCTIONS ##
+
# Kernel version compare functions
verlte() {
- [ "$1" = "`printf '%s\n%s' $1 $2 | sort -V | head -n1`" ]
+ [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | head -n1)" ]
}
verlt() {
- [ "$1" = "$2" ] && return 1 || verlte $1 $2
+ # shellcheck disable=SC2015
+ [ "$1" = "$2" ] && return 1 || verlte "$1" "$2"
}
vergte() {
- [ "$1" = "`printf '%s\n%s' $1 $2 | sort -V | tail -n1`" ]
+ [ "$1" = "$(printf '%s\n%s' "$1" "$2" | sort -V | tail -n1)" ]
}
vergt() {
- [ "$1" = "$2" ] && return 1 || vergte $1 $2
+ # shellcheck disable=SC2015
+ [ "$1" = "$2" ] && return 1 || vergte "$1" "$2"
}
-# Use all CPU cores
-NPROC=$(nproc)
-SRCDIR="${WORKSPACE}/lttng-modules"
-BUILDDIR="${WORKSPACE}/build"
-LNXSRCDIR="${WORKSPACE}/linux"
-LNXBUILDDIR="${WORKSPACE}/linux-build"
+git_clone_modules_sources() {
+ mkdir -p "$MODULES_GIT_DIR"
-# Create build directory
-mkdir -p "${BUILDDIR}" "${LNXBUILDDIR}"
+ # If the version starts with "refs/", checkout the specific git ref, otherwise treat it
+ # as a branch name.
+ if [ "${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}" "$MODULES_GIT_DIR"
+ fi
+}
-# Enter linux source dir
-cd "${LNXSRCDIR}"
+# Checkout a shallow kernel tree of the specified tag
+git_clone_linux_sources() {
+ mkdir -p "$LINUX_GIT_DIR"
+ git clone --depth=1 -b "${ktag}" --reference "$LINUX_GIT_REF_REPO_DIR" "${kgitrepo}" "$LINUX_GIT_DIR"
+}
-# Prepare linux sources for modules OOT build
-make O="${LNXBUILDDIR}" defconfig
-# Enable CONFIG_KALLSYMS_ALL
-sed -i "s/# CONFIG_KALLSYMS_ALL is not set/CONFIG_KALLSYMS_ALL=y/g" "${LNXBUILDDIR}"/.config
+# Export the kernel sources from the git repo
+git_export_linux_sources() {
+ cd "$LINUX_GIT_DIR"
+ git archive "${ktag}" | tar -x -C "$LINUX_SRCOBJ_DIR"
+}
-# Build to out of tree dir
-make O="${LNXBUILDDIR}" modules_prepare
-case "$kversion" in
- Ubuntu*)
- #fakeroot debian/rules clean
- #fakeroot debian/rules genconfigs
- #cp CONFIGS/amd64-config.flavour.generic .config
+# Upload the tar archive to the object store
+upload_archive_obj() {
+ s3cmd -c "$WORKSPACE/.s3cfg" put "$WORKSPACE/$obj_name" "$obj_url_prefix/"
+ rm -f "$WORKSPACE/$obj_name"
+}
- # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
- ABINUM=$(echo $kversion | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')
- echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> ${LNXBUILDDIR}/include/generated/utsrelease.h
- ;;
-esac
-# Get kernel version from source tree
-cd "${LNXBUILDDIR}"
-KVERSION=$(make kernelversion)
+extract_archive_obj() {
+ tar -xf "$WORKSPACE/$obj_name" -C "$LINUX_OBJ_DIR"
+ rm -f "$WORKSPACE/$obj_name"
+}
+
+
+tar_archive_obj() {
+ cd "$LINUX_OBJ_DIR"
+ tar -cf "$WORKSPACE/$obj_name" -I pbzip2 .
+ cd -
+}
+
+list_gccs() {
+ local gccs
+ gccs=()
+ IFS=: read -r -a path_array <<< "$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[@]}"
+}
-# Enter source dir
-cd "${SRCDIR}"
+# Find the most recent GCC version supported by the kernel sources
+select_compiler() {
+ local selected_cc
-# kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
-# timekeeping subsystem. We want those build to fail.
-if { vergte "$KVERSION" "3.10" && verlte "$KVERSION" "3.10.13"; } || \
- { vergte "$KVERSION" "3.11" && verlte "$KVERSION" "3.11.2"; }; then
+ cd "$LINUX_SRCOBJ_DIR"
+
+ kversion=$(make -s kernelversion)
set +e
- # Build modules
- KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
+ 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
+ fi
+ done
+
+ set -e
+
+ if [ "x$selected_cc" = "x" ]; then
+ echo "Found no suitable compiler."
+ exit 1
+ fi
+
+ # Force gcc-4.8 for kernels before 3.18
+ if { verlt "$kversion" "3.18"; }; then
+ selected_cc=gcc-4.8
+ fi
+
+ if [ "$selected_cc" != "gcc-4.8" ]; then
+ # Older kernel Makefiles do not expect the compiler to default to PIE
+ KAFLAGS="-fno-pie"
+ KCFLAGS="-fno-pie -no-pie -fno-stack-protector"
+ KCPPFLAGS="-fno-pie"
+ export KAFLAGS KCFLAGS KCPPFLAGS
+ fi
+
+ export CC="${CROSS_COMPILE:-}${selected_cc}"
+ export HOSTCC="${selected_cc}"
+
+ cd -
+}
+
+
+build_linux_kernel() {
+ cd "$LINUX_SRCOBJ_DIR"
+
+ kversion=$(make -s kernelversion)
+
+ # Generate kernel configuration
+ case "$ktag" in
+ Ubuntu*)
+ if [ "${cross_arch}" = "powerpc" ]; then
+ if vergte "${kversion}" "4.10"; then
+ echo "Ubuntu removed big endian powerpc configuration from kernel >= 4.10. Don't try to build it."
+ exit 0
+ fi
+ fi
+
+ # Disable riscv64 config generation, we don't have a toolchain on bionic
+ sed -i 's/riscv64 //' debian.master/etc/kernelconfig
+
+ # Hack for kernel Ubuntu-hwe-5.8
+ if [ ! -f "debian/compat" ]; then
+ echo "10" > "debian/compat"
+ fi
+
+ fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
+ fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=.
+ cp CONFIGS/"${ubuntu_config}" .config
+ ;;
+
+ *)
+ # Force 32bit build on i386, default is 64bit
+ if [ "$arch" = "i386" ]; then
+ export ARCH="i386"
+ fi
+
+ # allyesconfig is mostly broken for kernels of the 2.6 series
+ if verlt "$kversion" "3.0"; then
+ vanilla_config="defconfig"
+ fi
+
+ make "${vanilla_config}"
+ ;;
+ esac
+
+ # oldnoconfig was renamed in 4.19
+ if vergte "$kversion" "4.19"; then
+ update_conf_target="olddefconfig"
+ else
+ update_conf_target="oldnoconfig"
+ fi
+
+ # Fix 'defined(@array)' was removed from recent perl
+ if [ -f "kernel/timeconst.pl" ]; then
+ sed -i 's/defined(\@\(.*\))/@\1/' kernel/timeconst.pl
+ fi
+
+ # Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5
+ if [ "$HOSTCC" != "gcc-4.8" ]; then
+ if [ -f "arch/x86/kvm/svm.c" ]; then
+ sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/svm.c
+ fi
+
+ if [ -f "arch/x86/kvm/vmx.c" ]; then
+ sed -i 's/ R"/ R "/g; s/"R"/" R "/g' arch/x86/kvm/vmx.c
+ fi
+ fi
+
+ # Newer binutils don't accept 3 operand 'cmp' instructions on ppc64
+ # Convert them to 'cmpw' which was previously done silently
+ if verlt "$kversion" "4.9"; then
+ find arch/powerpc/ -name "*.S" -print0 | xargs -0 sed -i "s/\(cmp\)\(\s\+[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+\)/cmpw\2/"
+ find arch/powerpc/ -name "*.S" -print0 | xargs -0 sed -i "s/\(cmpli\)\(\s\+[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+,\s*[a-zA-Z0-9]\+\)/cmplwi\2/"
+ sed -i "s/\$pie \-o \"\$ofile\"/\$pie --no-dynamic-linker -o \"\$ofile\"/" arch/powerpc/boot/wrapper
+ fi
+
+ # Fix a typo in v2.6.36.x
+ if [ -f "arch/x86/kernel/entry_64.S" ]; then
+ sed -i 's/END(do_hypervisor_callback)/END(xen_do_hypervisor_callback)/' arch/x86/kernel/entry_64.S
+ fi
+
+ # Fix compiler switch in vdso Makefile for 2.6.36 to 2.6.36.2
+ if { vergte "$kversion" "2.6.36" && verlte "$kversion" "2.6.36.3"; }; then
+ sed -i 's/-m elf_x86_64/-m64/' arch/x86/vdso/Makefile
+ sed -i 's/-m elf_i386/-m32/' arch/x86/vdso/Makefile
+ fi
+
+ # Fix kernel < 3.0 with gcc >= 4.7
+ if verlt "$kversion" "3.0"; then
+ sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h
+ sed -i 's/extern long syscall_trace_enter/extern asmregparm long syscall_trace_enter/' arch/x86/include/asm/ptrace.h
+ sed -i 's/extern void syscall_trace_leave/extern asmregparm void syscall_trace_leave/' arch/x86/include/asm/ptrace.h
+ echo "header-y += linkage.h" >> include/linux/Kbuild
+ fi
+
+ # GCC 4.8
+ if [ "$HOSTCC" == "gcc-4.8" ]; then
+ scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG
+ fi
+
+ # Don't try to sign modules
+ scripts/config --disable CONFIG_MODULE_SIG
+
+ # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
+ scripts/config --disable CONFIG_STACK_VALIDATION
+
+ # Cause problems with inline assembly on i386
+ scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH
+
+ # Don't build samples, they are broken on some kernel releases
+ scripts/config --disable CONFIG_SAMPLES
+ scripts/config --disable CONFIG_BUILD_DOCSRC
+
+ # Disable kcov
+ scripts/config --disable CONFIG_KCOV
+
+ # Broken on some RT kernels
+ scripts/config --disable CONFIG_HYPERV
+
+ # Broken drivers
+ scripts/config --disable CONFIG_RAPIDIO_TSI721
+ scripts/config --disable CONFIG_SGI_XP
+ scripts/config --disable CONFIG_MFD_WM8994
+ scripts/config --disable CONFIG_DRM_RADEON
+ scripts/config --disable CONFIG_SND_SOC_WM5100
+
+ # IGBVF won't build with recent gcc on 2.6.38.x
+ if { vergte "$kversion" "2.6.37" && verlt "$kversion" "2.6.38"; }; then
+ 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_HIGH_RES_TIMERS
+ scripts/config --enable CONFIG_KPROBES
+ scripts/config --enable CONFIG_FTRACE
+ scripts/config --enable CONFIG_BLK_DEV_IO_TRACE
+ scripts/config --enable CONFIG_KALLSYMS_ALL
+ scripts/config --enable CONFIG_HAVE_SYSCALL_TRACEPOINTS
+ scripts/config --enable CONFIG_PERF_EVENTS
+ 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
+
+ make "$update_conf_target" CC="$CC"
+ make -j"$NPROC" CC="$CC"
+
+ krelease=$(make -s kernelrelease CC="$CC")
+
+ # 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="$CC"
+ make INSTALL_MOD_PATH="$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"
+}
+
+
+extract_distro_headers() {
+
+ # Enter linux source dir
+ cd "${LINUX_SRCOBJ_DIR}"
+
+
+ # For RT kernels, copy version file
+ if [ -s localversion-rt ]; then
+ cp -a localversion-rt "${LINUX_HDROBJ_DIR}"
+ fi
+
+ # Copy all Makefile related stuff
+ find . -path './include/*' -prune \
+ -o -path './scripts/*' -prune -o -type f \
+ \( -name 'Makefile*' -o -name 'Kconfig*' -o -name 'Kbuild*' -o \
+ -name '*.sh' -o -name '*.pl' -o -name '*.lds' \) \
+ -print | cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
+
+ # Copy base scripts and include dirs
+ cp -a scripts include "${LINUX_HDROBJ_DIR}"
+
+ # Copy arch includes
+ (find arch -name include -type d -print0 | \
+ xargs -0 -n1 -i: find : -type f) | \
+ cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
+
+ # Copy arch scripts
+ (find arch -name scripts -type d -print0 | \
+ xargs -0 -n1 -i: find : -type f) | \
+ cpio -pd --preserve-modification-time "${LINUX_HDROBJ_DIR}"
+
+ # Cleanup scripts
+ rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o"
+ rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o"
+
+ # On powerpc 32bits this object is required to link modules
+ if [ "${karch}" = "powerpc" ]; then
+ if [ "x$(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
+
+ # On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
+ if [ "${karch}" = "arm64" ]; then
+ if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
+ cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LINUX_HDROBJ_DIR}/"
+ fi
+ fi
+
+ # Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y
+ if [ -f tools/objtool/objtool ]; then
+ cp -a --parents tools/objtool/objtool "${LINUX_HDROBJ_DIR}/"
+ fi
+
+ if [ -f "arch/x86/kernel/macros.s" ]; then
+ cp -a --parents arch/x86/kernel/macros.s "${LINUX_HDROBJ_DIR}/"
+ fi
+
+ # Copy modules related stuff, if available
+ if [ -s Module.symvers ]; then
+ cp Module.symvers "${LINUX_HDROBJ_DIR}"
+ fi
+
+ if [ -s System.map ]; then
+ cp System.map "${LINUX_HDROBJ_DIR}"
+ fi
+
+ if [ -s Module.markers ]; then
+ cp Module.markers "${LINUX_HDROBJ_DIR}"
+ fi
+
+ # Copy config file
+ cp .config "${LINUX_HDROBJ_DIR}"
- # We expect this build to fail, if it doesn't, fail the job.
- if [ "$?" -eq 0 ]; then
+ # Make sure the Makefile and version.h have a matching timestamp so that
+ # external modules can be built
+ if [ -s "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h" ]; then
+ touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/generated/uapi/linux/version.h"
+ elif [ -s "${LINUX_HDROBJ_DIR}/include/linux/version.h" ]; then
+ touch -r "${LINUX_HDROBJ_DIR}/Makefile" "${LINUX_HDROBJ_DIR}/include/linux/version.h"
+ else
+ echo "Missing version.h"
exit 1
fi
+ touch -r "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/generated/autoconf.h"
+
+ # Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
+ if [ ! -f "${LINUX_HDROBJ_DIR}/include/config/auto.conf" ]; then
+ cp "${LINUX_HDROBJ_DIR}/.config" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
+ fi
- # We have to publish at least one file or the build will fail
- echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${BUILDDIR}/BROKEN.txt"
+ # Finally clean the object files from the full source tree
+ make clean
- set -e
+ # And regen the modules support files
+ make modules_prepare CC="$CC"
+
+ # On powerpc 32bits this object is required to link modules
+ if [ "${karch}" = "powerpc" ]; then
+ if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
+ :
+ else
+ make arch/powerpc/lib/crtsavres.o CC="$CC"
+ fi
+ fi
+
+ # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support
+ if [ "${karch}" = "arm64" ]; then
+ if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
+ make arch/arm64/kernel/ftrace-mod.o CC="$CC"
+ fi
+ fi
+
+ # Version specific tasks
+ case "$ktag" in
+ Ubuntu*)
+ # Add Ubuntu ABI number to kernel headers, this is normally done by the packaging code
+ ABINUM="$(echo "$ktag" | grep -P -o 'Ubuntu-(lts-)?.*-\K\d+(?=\..*)')"
+ echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> include/generated/utsrelease.h
+ echo "#define UTS_UBUNTU_RELEASE_ABI $ABINUM" >> "${LINUX_HDROBJ_DIR}/include/generated/utsrelease.h"
+ ;;
+ esac
+}
+
+
+build_modules() {
+
+ local kdir="$1"
+ local outdir="$2"
+ local kversion
+
+ kversion=$(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 "${MODULES_GIT_DIR}"
+
+ # kernels 3.10 to 3.10.13 and 3.11 to 3.11.2 introduce a deadlock in the
+ # timekeeping subsystem. We want those build to fail.
+ if { vergte "$kversion" "3.10" && verlte "$kversion" "3.10.13"; } || \
+ { vergte "$kversion" "3.11" && verlte "$kversion" "3.11.2"; }; then
+
+ set +e
+
+ # Build modules
+ KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
+ ret=$?
+
+ set -e
+
+ # We expect this build to fail, if it doesn't, fail the job.
+ if [ "$ret" -eq 0 ]; then
+ echo "This build should have failed."
+ exit 1
+ fi
+
+ # We have to publish at least one file or the build will fail
+ echo "This kernel is broken, there is a deadlock in the timekeeping subsystem." > "${outdir}/BROKEN.txt.ko"
+
+ KERNELDIR="${kdir}" make clean
+
+ else # Regular build
+
+ # Build modules against full kernel sources
+ KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
+
+ # Install modules to build dir
+ KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${outdir}" modules_install
+
+ # Clean build dir
+ KERNELDIR="${kdir}" make clean
+ fi
+}
+
+
+## MAIN ##
+
+# Use all CPU cores
+NPROC=$(nproc)
+
+MODULES_GIT_DIR="${WORKSPACE}/src/lttng-modules"
+LINUX_GIT_DIR="${WORKSPACE}/src/linux"
+
+LINUX_OBJ_DIR="${WORKSPACE}/linux"
+LINUX_SRCOBJ_DIR="${LINUX_OBJ_DIR}/sources"
+LINUX_HDROBJ_DIR="${LINUX_OBJ_DIR}/headers"
+LINUX_INSTOBJ_DIR="${LINUX_OBJ_DIR}/install"
+
+MODULES_OUTPUT_KSRC_DIR="${WORKSPACE}/build/lttng-modules-ksrc"
+MODULES_OUTPUT_KHDR_DIR="${WORKSPACE}/build/lttng-modules-khdr"
+
+LINUX_GIT_REF_REPO_DIR="$HOME/gitcache/linux-stable.git/"
+
+OBJ_STORE_URL="s3://jenkins"
+
+cd "$WORKSPACE"
-else # Regular build
+# Create build directories
+mkdir -p "${LINUX_SRCOBJ_DIR}" "${LINUX_HDROBJ_DIR}" "${LINUX_INSTOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
- # Build modules
- KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
+git_clone_modules_sources
+
+# Setup cross compile env if available
+if [ "x${cross_arch}" != "x" ]; then
+
+ case "$cross_arch" in
+ "armhf")
+ karch="arm"
+ cross_compile="arm-linux-gnueabihf-"
+ vanilla_config="imx_v6_v7_defconfig"
+ ubuntu_config="armhf-config.flavour.generic"
+ ;;
+
+ "arm64")
+ karch="arm64"
+ cross_compile="aarch64-linux-gnu-"
+ vanilla_config="defconfig"
+ ubuntu_config="arm64-config.flavour.generic"
+ ;;
+
+ "powerpc")
+ karch="powerpc"
+ cross_compile="powerpc-linux-gnu-"
+ vanilla_config="ppc44x_defconfig"
+ ubuntu_config="powerpc-config.flavour.powerpc-smp"
+ ;;
+
+ "ppc64el")
+ karch="powerpc"
+ cross_compile="powerpc64le-linux-gnu-"
+ vanilla_config="pseries_le_defconfig"
+ ubuntu_config="ppc64el-config.flavour.generic"
+ ;;
+
+ *)
+ echo "Unsupported cross arch $cross_arch"
+ exit 1
+ ;;
+ esac
+
+ # Export variables used by Kbuild for cross compilation
+ export ARCH="${karch}"
+ export CROSS_COMPILE="${cross_compile}"
+
+# Set arch specific values if we are not cross compiling
+elif [ "x${arch}" != "x" ]; then
+
+ case "$arch" in
+ "i386")
+ karch="x86"
+ vanilla_config="allyesconfig"
+ ubuntu_config="i386-config.flavour.generic"
+ ;;
+
+ "amd64")
+ karch="x86"
+ vanilla_config="allyesconfig"
+ ubuntu_config="amd64-config.flavour.generic"
+ ;;
+
+ "armhf")
+ karch="arm"
+ vanilla_config="allyesconfig"
+ ubuntu_config="armhf-config.flavour.generic"
+ ;;
+
+ "arm64")
+ karch="arm64"
+ vanilla_config="allyesconfig"
+ ubuntu_config="arm64-config.flavour.generic"
+ ;;
+
+ "powerpc")
+ karch="powerpc"
+ vanilla_config="allyesconfig"
+ ubuntu_config="powerpc-config.flavour.powerpc-smp"
+ ;;
+
+ "ppc64el")
+ karch="powerpc"
+ vanilla_config="allyesconfig"
+ ubuntu_config="ppc64el-config.flavour.generic"
+ ;;
+
+ *)
+ echo "Unsupported arch $arch"
+ exit 1
+ ;;
+ esac
+else
+ echo "No arch or cross_arch specified"
+ exit 1
+fi
+
+
+
+# First get the kernel build from the object store, or build it, if it's
+# not available.
+
+echo "# Setup endpoint
+host_base = obj.internal.efficios.com
+host_bucket = obj.internal.efficios.com
+bucket_location = us-east-1
+use_https = True
+
+# Setup access keys
+access_key = jenkins
+secret_key = echo123456
+
+# Enable S3 v4 signature APIs
+signature_v2 = False" > "$WORKSPACE/.s3cfg"
+
+url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')"
+obj_name="linux.tar.bz2"
+
+if [ "x${cross_arch}" = "x" ]; then
+ obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/$arch/native"
+else
+ obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/${cross_arch}"
+fi
+
+obj_url="$obj_url_prefix/$obj_name"
+
+set +e
+# 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
+ ;;
+
+ "12")
+ echo "File not found"
+
+ # Build all the things and upload
+ # then finish the module build...
+
+ git_clone_linux_sources
+ git_export_linux_sources
+
+ select_compiler
+
+ ## PREPARE FULL LINUX SOURCE TREE
+ build_linux_kernel
+
+ ## EXTRACT DISTRO STYLE KERNEL HEADERS / DEVEL
+ extract_distro_headers
+
+ tar_archive_obj
+
+ upload_archive_obj
+
+ ;;
+
+ *)
+ echo "Unknown error? Abort"
+ exit 1
+ ;;
+esac
+
+select_compiler
+
+## BUILD modules
+# Either we downloaded a pre-build kernel or we built it and uploaded
+# the archive for future builds.
+
+cd "$WORKSPACE"
+
+# Build modules against full kernel sources
+build_modules "${LINUX_SRCOBJ_DIR}" "${MODULES_OUTPUT_KSRC_DIR}"
+
+# Build modules against kernel headers
+build_modules "${LINUX_HDROBJ_DIR}" "${MODULES_OUTPUT_KHDR_DIR}"
+
+# Make sure some modules were actually built
+tree "${MODULES_OUTPUT_KSRC_DIR}"
+if [ "x$(find "${MODULES_OUTPUT_KSRC_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
+ echo "No modules built!"
+ exit 1
+fi
- # Install modules to build dir
- KERNELDIR="${LNXBUILDDIR}" make INSTALL_MOD_PATH="${BUILDDIR}" modules_install
+tree "${MODULES_OUTPUT_KHDR_DIR}"
+if [ "x$(find "${MODULES_OUTPUT_KHDR_DIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
+ echo "No modules built!"
+ exit 1
fi
# EOF
projects / lttng-ci.git / blobdiff