jjb: Build kernels with allmodconfig instead of allyesconfig

[lttng-ci.git] / scripts / lttng-modules / param-build.sh

diff --git a/scripts/lttng-modules/param-build.sh b/scripts/lttng-modules/param-build.sh
index b5c8b8f8b598a855a1fd56d342c333d06808ed92..81389bd3b278421c178a068b769f0d7220753315 100644 (file)
--- a/scripts/lttng-modules/param-build.sh
+++ b/scripts/lttng-modules/param-build.sh
@@ -18,14 +18,23 @@
 set -exu
 
 # Parameters
-arch=${arch:-amd64}
+platforms=${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
@@ -166,13 +175,21 @@ build_linux_kernel() {
         # 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=.
+
         # Hack for kernel Ubuntu-hwe-5.8
-        if [ ! -f "debian/compat" ]; then
+        # 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
 
-        fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
-        fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=.
+        # 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
         ;;
 
@@ -182,11 +199,6 @@ build_linux_kernel() {
             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
@@ -293,14 +305,6 @@ build_linux_kernel() {
     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
 
@@ -574,37 +578,37 @@ elif [ "x${arch}" != "x" ]; then
     case "$arch" in
         "i386")
             karch="x86"
-            vanilla_config="allyesconfig"
+            vanilla_config="allmodconfig"
             ubuntu_config="i386-config.flavour.generic"
             ;;
 
         "amd64")
             karch="x86"
-            vanilla_config="allyesconfig"
+            vanilla_config="allmodconfig"
             ubuntu_config="amd64-config.flavour.generic"
             ;;
 
         "armhf")
             karch="arm"
-            vanilla_config="allyesconfig"
+            vanilla_config="allmodconfig"
             ubuntu_config="armhf-config.flavour.generic"
             ;;
 
         "arm64")
             karch="arm64"
-            vanilla_config="allyesconfig"
+            vanilla_config="allmodconfig"
             ubuntu_config="arm64-config.flavour.generic"
             ;;
 
         "powerpc")
             karch="powerpc"
-            vanilla_config="allyesconfig"
+            vanilla_config="allmodconfig"
             ubuntu_config="powerpc-config.flavour.powerpc-smp"
             ;;
 
         "ppc64el")
             karch="powerpc"
-            vanilla_config="allyesconfig"
+            vanilla_config="allmodconfig"
             ubuntu_config="ppc64el-config.flavour.generic"
             ;;
 
@@ -640,9 +644,9 @@ 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/$arch/native"
+       obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/$arch/native"
 else
-       obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/${cross_arch}"
+       obj_url_prefix="$OBJ_STORE_URL/linux-build/$url_hash/$ktag/platform-${platforms}/${cross_arch}"
 fi
 
 obj_url="$obj_url_prefix/$obj_name"