-#!/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=${arch:-}
+arch=${arch:-amd64}
cross_arch=${cross_arch:-}
ktag=${ktag:-}
kgitrepo=${kgitrepo:-}
}
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
if [ "$selected_cc" != "gcc-4.8" ]; then
# Older kernel Makefiles do not expect the compiler to default to PIE
KAFLAGS="-fno-pie"
- KCFLAGS="-fno-pie -no-pie"
+ KCFLAGS="-fno-pie -no-pie -fno-stack-protector"
KCPPFLAGS="-fno-pie"
export KAFLAGS KCFLAGS KCPPFLAGS
fi
exit 0
fi
fi
+
+ # Disable riscv64 config generation, we don't have a toolchain on bionic
+ sed -i 's/riscv64 //' debian.master/etc/kernelconfig
+
+ # Hack for kernel Ubuntu-hwe-5.8
+ if [ ! -f "debian/compat" ]; then
+ echo "10" > "debian/compat"
+ fi
+
fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=.
cp CONFIGS/"${ubuntu_config}" .config
;;
+
*)
# Force 32bit build on i386, default is 64bit
if [ "$arch" = "i386" ]; then
;;
esac
- # silentoldconfig was renamed in 4.19
+ # oldnoconfig was renamed in 4.19
if vergte "$kversion" "4.19"; then
- update_conf_target="syncconfig"
+ update_conf_target="olddefconfig"
else
- update_conf_target="silentoldconfig"
+ update_conf_target="oldnoconfig"
fi
# Fix 'defined(@array)' was removed from recent perl
fi
# Fix syntax of inline assembly which is confused with C++11 raw strings on gcc >= 5
- if [ "$CC" != "gcc-4.8" ]; then
+ if [ "$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
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 "$kversion" "3.0"; then
sed -i '/linux\/compiler.h/a #include <linux\/linkage.h> \/* For asmregparm *\/' arch/x86/include/asm/ptrace.h
fi
# GCC 4.8
- sed -i "s/CONFIG_CC_STACKPROTECTOR_STRONG=y/# CONFIG_CC_STACKPROTECTOR_STRONG is not set/g" .config
+ if [ "$HOSTCC" == "gcc-4.8" ]; then
+ scripts/config --disable CONFIG_CC_STACKPROTECTOR_STRONG
+ fi
# Don't try to sign modules
- sed -i "s/CONFIG_MODULE_SIG=y/# CONFIG_MODULE_SIG is not set/g" .config
+ scripts/config --disable CONFIG_MODULE_SIG
# Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
- sed -i "s/CONFIG_STACK_VALIDATION=y/# CONFIG_STACK_VALIDATION is not set/g" .config
+ scripts/config --disable CONFIG_STACK_VALIDATION
# Cause problems with inline assembly on i386
- sed -i "s/CONFIG_DEBUG_SECTION_MISMATCH=y/# CONFIG_DEBUG_SECTION_MISMATCH is not set/g" .config
+ scripts/config --disable CONFIG_DEBUG_SECTION_MISMATCH
# Don't build samples, they are broken on some kernel releases
- sed -i "s/CONFIG_SAMPLES=y/# CONFIG_SAMPLES is not set/g" .config
+ 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
- sed -i "s/CONFIG_IGBVF=y/# CONFIG_IGBVF is not set/g" .config
+ scripts/config --disable CONFIG_IGBVF
fi
+ # Don't fail the build on warnings
+ scripts/config --disable CONFIG_WERROR
+
# Set required options
- {
- echo "CONFIG_KPROBES=y";
- echo "CONFIG_FTRACE=y";
- echo "CONFIG_BLK_DEV_IO_TRACE=y";
- echo "CONFIG_TRACEPOINTS=y";
- echo "CONFIG_KALLSYMS_ALL=y";
- } >> .config
+ 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=$(make -s kernelrelease)
+ krelease=$(make -s kernelrelease CC="$CC")
# Save the kernel and modules
mkdir -p "$LINUX_INSTOBJ_DIR/boot"
- make INSTALL_MOD_PATH="$LINUX_INSTOBJ_DIR" INSTALL_MOD_STRIP=1 modules_install
- make INSTALL_PATH="$LINUX_INSTOBJ_DIR/boot" install
+ 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/${krelease}/source"
rm -f "${LINUX_HDROBJ_DIR}/scripts/*.o"
rm -f "${LINUX_HDROBJ_DIR}/scripts/*/*.o"
- # On powerpc this object is required to link modules
+ # On powerpc 32bits this object is required to link modules
if [ "${karch}" = "powerpc" ]; then
- cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LINUX_HDROBJ_DIR}/"
+ if [ "x$(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
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" "${LINUX_HDROBJ_DIR}/include/config/auto.conf"
+ fi
# Finally clean the object files from the full source tree
make clean
# And regen the modules support files
make modules_prepare CC="$CC"
- # On powerpc this object is required to link modules
+ # On powerpc 32bits this object is required to link modules
if [ "${karch}" = "powerpc" ]; then
- make arch/powerpc/lib/crtsavres.o CC="$CC"
+ if [ "x$(scripts/config -s CONFIG_PPC64)" = "xy" ] && vergte "${kversion}" "5.4"; then
+ :
+ else
+ make arch/powerpc/lib/crtsavres.o CC="$CC"
+ fi
fi
# On arm64 between 4.13 and 4.15 this object is required to build with ftrace support
kversion=$(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 "${MODULES_GIT_DIR}"
# Build modules
KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
+ ret=$?
set -e
# We expect this build to fail, if it doesn't, fail the job.
- if [ "$?" -eq 0 ]; then
+ 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"
- set -e
-
KERNELDIR="${kdir}" make clean
else # Regular build
"armhf")
karch="arm"
cross_compile="arm-linux-gnueabihf-"
- vanilla_config="allyesconfig"
+ vanilla_config="imx_v6_v7_defconfig"
ubuntu_config="armhf-config.flavour.generic"
;;
"arm64")
karch="arm64"
cross_compile="aarch64-linux-gnu-"
- vanilla_config="allyesconfig"
+ vanilla_config="defconfig"
ubuntu_config="arm64-config.flavour.generic"
;;
;;
esac
else
- echo "Not arch or cross_arch specified"
+ echo "No arch or cross_arch specified"
exit 1
fi
# Enable S3 v4 signature APIs
signature_v2 = False" > "$WORKSPACE/.s3cfg"
-url_hash="$(echo -n "$kgitrepo/$ktag/$arch/$cross_arch" | md5sum | awk '{ print $1 }')"
+url_hash="$(echo -n "$kgitrepo" | md5sum | awk '{ print $1 }')"
obj_name="linux.tar.bz2"
-obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash"
+
+if [ "x${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
-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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