X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=scripts%2Flttng-modules%2Fparam-build.sh;h=405c61f0ee87dc4a87d67142977e35935facd558;hb=417251718144a9f5ab350abe6a15aca660819ab9;hp=a905a38cb03ded5cd988639f3b8ca6c9343bcf1b;hpb=2c1d386a795ee93d8d8af91559e8b23ea036d82a;p=lttng-ci.git

diff --git a/scripts/lttng-modules/param-build.sh b/scripts/lttng-modules/param-build.sh
index a905a38..405c61f 100644
--- a/scripts/lttng-modules/param-build.sh
+++ b/scripts/lttng-modules/param-build.sh
@@ -15,92 +15,405 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Parameters
+arch=${arch:-}
+cross_arch=${cross_arch:-}
+ktag=${ktag:-}
+
+
+## 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
+    [ "$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
+    [ "$1" = "$2" ] && return 1 || vergte "$1" "$2"
+}
+
+
+prepare_lnx_sources() {
+
+    outdir=$1
+
+    if [ "$outdir" = "." ]; then
+      koutput=""
+    else
+      koutput="O=${outdir}"
+    fi
+
+    # Generate kernel configuration
+    case "$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
+        fakeroot debian/rules clean
+        fakeroot debian/rules genconfigs
+        cp CONFIGS/"${ubuntu_config}" "${outdir}"/.config
+        ;;
+      *)
+        # Force 32bit build on x86-32, default is 64bit
+        if [ "$arch" = "x86-32" ]; then
+	  export ARCH="i386"
+        fi
+
+        # Que sera sera
+        make "${vanilla_config}" CC="$CC" ${koutput}
+        ;;
+    esac
+
+    # GCC 4.8
+    sed -i "s/CONFIG_CC_STACKPROTECTOR_STRONG=y/# CONFIG_CC_STACKPROTECTOR_STRONG is not set/g" "${outdir}"/.config
+
+    # Don't try to sign modules
+    sed -i "s/CONFIG_MODULE_SIG=y/# CONFIG_MODULE_SIG is not set/g" "${outdir}"/.config
+
+    # Disable kernel stack frame correctness validation, introduced in 4.6.0 and currently fails
+    sed -i "s/CONFIG_STACK_VALIDATION=y/# CONFIG_STACK_VALIDATION is not set/g" "${outdir}"/.config
+
+    # 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";
+    } >> "${outdir}"/.config
+
+    # Debug
+    #cat "${outdir}"/.config
+
+    make "$oldconf_target" CC="$CC" ${koutput}
+    make modules_prepare CC="$CC" ${koutput}
+
+    # On powerpc this object is required to link modules
+    if [ "${karch}" = "powerpc" ]; then
+        make arch/powerpc/lib/crtsavres.o CC="$CC" ${koutput}
+    fi
+
+    # On arm64 between 4.13 and 4.15 this object is required to build with ftrace support
+    if [ "${karch}" = "arm64" ]; then
+        if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
+            make arch/arm64/kernel/ftrace-mod.o CC="$CC" ${koutput}
+        fi
+    fi
+
+    # Version specific tasks
+    case "$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 $ABINUM" >> "${outdir}"/include/generated/utsrelease.h
+        ;;
+    esac
 }
 
+
+
+build_modules() {
+
+    kdir="$1"
+    bdir="$2"
+
+    # Enter lttng-modules source dir
+    cd "${LTTSRCDIR}"
+
+    # 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="$CC"
+
+        # We expect this build to fail, if it doesn't, fail the job.
+        if [ "$?" -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." > "${bdir}/BROKEN.txt.ko"
+
+        set -e
+
+        KERNELDIR="${kdir}" make clean CC="$CC"
+
+    else # Regular build
+
+        # Build modules against full kernel sources
+        KERNELDIR="${kdir}" make -j"${NPROC}" V=1 CC="$CC"
+
+        # Install modules to build dir
+        KERNELDIR="${kdir}" make INSTALL_MOD_PATH="${bdir}" modules_install CC="$CC"
+
+        # Clean build dir
+        KERNELDIR="${kdir}" make clean CC="$CC"
+    fi
+}
+
+
+## MAIN ##
+
 # Use all CPU cores
 NPROC=$(nproc)
 
-SRCDIR="${WORKSPACE}/lttng-modules"
-BUILDDIR="${WORKSPACE}/build"
-LNXSRCDIR="${WORKSPACE}/linux"
-LNXBUILDDIR="${WORKSPACE}/linux-build"
+LTTSRCDIR="${WORKSPACE}/src/lttng-modules"
+LNXSRCDIR="${WORKSPACE}/src/linux"
 
-# Create build directory
-mkdir -p "${BUILDDIR}" "${LNXBUILDDIR}"
+LNXBUILDDIR="${WORKSPACE}/build/linux"
+LNXHDRDIR="${WORKSPACE}/build/linux-headers"
 
-# Enter linux source dir
-cd "${LNXSRCDIR}"
+LTTBUILDKSRCDIR="${WORKSPACE}/build/lttng-modules-ksrc"
+LTTBUILDKHDRDIR="${WORKSPACE}/build/lttng-modules-khdr"
+
+
+# Setup cross compile env if available
+if [ "x${cross_arch}" != "x" ]; then
+
+    case "$cross_arch" in
+        "armhf")
+            karch="arm"
+            cross_compile="arm-linux-gnueabihf-"
+            vanilla_config="allyesconfig"
+            ubuntu_config="armhf-config.flavour.generic"
+            ;;
+
+        "arm64")
+            karch="arm64"
+            cross_compile="aarch64-linux-gnu-"
+            vanilla_config="allyesconfig"
+            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
 
-# Prepare linux sources for modules OOT build
-make O="${LNXBUILDDIR}" defconfig
+    # Use gcc 4.9, older kernel don't build with gcc 5
+    CC="${cross_compile}gcc-4.9"
 
-# Enable CONFIG_KALLSYMS_ALL
-sed -i "s/# CONFIG_KALLSYMS_ALL is not set/CONFIG_KALLSYMS_ALL=y/g" "${LNXBUILDDIR}"/.config
+    # Export variables used by Kbuild for cross compilation
+    export ARCH="${karch}"
+    export CROSS_COMPILE="${cross_compile}"
 
-# Build to out of tree dir
-make O="${LNXBUILDDIR}" modules_prepare
+    oldconf_target="olddefconfig"
 
-case "$kversion" in
-  Ubuntu*)
-    #fakeroot debian/rules clean
-    #fakeroot debian/rules genconfigs
-    #cp CONFIGS/amd64-config.flavour.generic .config
+# Set arch specific values if we are not cross compiling
+elif [ "x${arch}" != "x" ]; then
 
-    # 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" >> ${LNXBUILDDIR}/include/generated/utsrelease.h
-    ;;
-esac
+    case "$arch" in
+        "x86-32")
+            karch="x86"
+            vanilla_config="allyesconfig"
+            ubuntu_config="i386-config.flavour.generic"
+            ;;
+
+        "x86-64")
+            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 $arch"
+            exit 1
+            ;;
+    esac
+
+    # Use gcc 4.9, older kernel don't build with gcc 5
+    CC=gcc-4.9
+
+    oldconf_target="silentoldconfig"
+
+else
+    echo "Not arch or cross_arch specified"
+    exit 1
+fi
+
+
+
+
+# Create build directories
+mkdir -p "${LNXBUILDDIR}" "${LNXHDRDIR}" "${LTTBUILDKSRCDIR}" "${LTTBUILDKHDRDIR}"
+
+
+
+## PREPARE DISTRO STYLE KERNEL HEADERS / DEVEL
+
+# Enter linux source dir
+cd "${LNXSRCDIR}"
 
 # Get kernel version from source tree
-cd "${LNXBUILDDIR}"
 KVERSION=$(make kernelversion)
 
-# Enter source dir
-cd "${SRCDIR}"
+prepare_lnx_sources "."
+
+# For RT kernels, copy version file
+if [ -s localversion-rt ]; then
+    cp -a localversion-rt "${LNXHDRDIR}"
+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 "${LNXHDRDIR}"
+
+# Copy base scripts and include dirs
+cp -a scripts include "${LNXHDRDIR}"
+
+# Copy arch includes
+(find arch -name include -type d -print0 | \
+    xargs -0 -n1 -i: find : -type f) | \
+	cpio -pd --preserve-modification-time "${LNXHDRDIR}"
 
-# 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
+# Copy arch scripts
+(find arch -name scripts -type d -print0 | \
+    xargs -0 -n1 -i: find : -type f) | \
+	cpio -pd --preserve-modification-time "${LNXHDRDIR}"
 
-    set +e
+# Cleanup scripts
+rm -f "${LNXHDRDIR}/scripts/*.o"
+rm -f "${LNXHDRDIR}/scripts/*/*.o"
 
-    # Build modules
-    KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
+# On powerpc this object is required to link modules
+if [ "${karch}" = "powerpc" ]; then
+    cp -a --parents arch/powerpc/lib/crtsavres.[So] "${LNXHDRDIR}/"
+fi
 
-    # We expect this build to fail, if it doesn't, fail the job.
-    if [ "$?" -eq 0 ]; then
-        exit 1
+# On arm64 between 4.13 and 1.15 this object is required to build with ftrace support
+if [ "${karch}" = "arm64" ]; then
+    if [ -f "arch/arm64/kernel/ftrace-mod.S" ]; then
+        cp -a --parents arch/arm64/kernel/ftrace-mod.[So] "${LNXHDRDIR}/"
     fi
+fi
+
+# Newer kernels need objtool to build modules when CONFIG_STACK_VALIDATION=y
+if [ -f tools/objtool/objtool ]; then
+  cp -a --parents tools/objtool/objtool "${LNXHDRDIR}/"
+fi
+
+# Copy modules related stuff, if available
+if [ -s Module.symvers ]; then
+    cp Module.symvers "${LNXHDRDIR}"
+fi
+
+if [ -s System.map ]; then
+    cp System.map "${LNXHDRDIR}"
+fi
+
+if [ -s Module.markers ]; then
+    cp Module.markers "${LNXHDRDIR}"
+fi
+
+# Copy config file
+cp .config "${LNXHDRDIR}"
+
+# Make sure the Makefile and version.h have a matching timestamp so that
+# external modules can be built
+if [ -s "${LNXHDRDIR}/include/generated/uapi/linux/version.h" ]; then
+    touch -r "${LNXHDRDIR}/Makefile" "${LNXHDRDIR}/include/generated/uapi/linux/version.h"
+elif [ -s "${LNXHDRDIR}/include/linux/version.h" ]; then
+    touch -r "${LNXHDRDIR}/Makefile" "${LNXHDRDIR}/include/linux/version.h"
+else
+    echo "Missing version.h"
+    exit 1
+fi
+touch -r "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/generated/autoconf.h"
 
-    # 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." > "${BUILDDIR}/BROKEN.txt"
+# Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
+cp "${LNXHDRDIR}/.config" "${LNXHDRDIR}/include/config/auto.conf"
 
-    set -e
 
-else # Regular build
 
-    # Build modules
-    KERNELDIR="${LNXBUILDDIR}" make -j${NPROC} V=1
 
-    # Install modules to build dir
-    KERNELDIR="${LNXBUILDDIR}" make INSTALL_MOD_PATH="${BUILDDIR}" modules_install
+## PREPARE FULL LINUX SOURCE TREE
+
+# Enter linux source dir
+cd "${LNXSRCDIR}"
+
+# Make sure linux source dir is clean
+git clean -xdf
+
+prepare_lnx_sources "${LNXBUILDDIR}"
+
+
+## BUILD modules
+
+# Build modules against full kernel sources
+build_modules "${LNXBUILDDIR}" "${LTTBUILDKSRCDIR}"
+
+# Build modules against kernel headers
+build_modules "${LNXHDRDIR}" "${LTTBUILDKHDRDIR}"
+
+# Make sure modules were built
+tree "${LTTBUILDKSRCDIR}"
+if [ "x$(find "${LTTBUILDKSRCDIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
+  echo "No modules built!"
+  exit 1
+fi
+
+tree "${LTTBUILDKHDRDIR}"
+if [ "x$(find "${LTTBUILDKHDRDIR}" -name '*.ko*' -printf yes -quit)" != "xyes" ]; then
+  echo "No modules built!"
+  exit 1
 fi
 
 # EOF