jjb: fix multiple kernel build errors

[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 7d5eb6eed4d5d341623384dad2f6cc96d5f5a18d..86efc71d31d65b887885a3345bc67506c8d73241 100644 (file)
--- a/scripts/lttng-modules/param-build.sh
+++ b/scripts/lttng-modules/param-build.sh
@@ -1,6 +1,6 @@
 #!/bin/bash -exu
 #
-# Copyright (C) 2016-2018 - 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
@@ -92,7 +92,7 @@ select_compiler() {
 
     set +e
 
-    for cc in gcc-7 gcc-5 gcc-4.8; do
+    for cc in gcc-5 gcc-4.8; 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
@@ -106,22 +106,21 @@ select_compiler() {
       exit 1
     fi
 
-    # Force gcc-4 for buggy kernel branches
-    if { vergte "$kversion" "3.2" && verlt "$kversion" "3.3"; } || \
-       { vergte "$kversion" "3.4" && verlt "$kversion" "3.5"; } || \
-       { vergte "$kversion" "3.17" && verlt "$kversion" "3.18"; }; then
+    # Force gcc-4.8 for kernels before 3.18
+    if { verlt "$kversion" "3.18"; }; then
       selected_cc=gcc-4.8
     fi
 
-    case "$ktag" in
-      Ubuntu*)
-        if { vergte "$kversion" "3.13" && verlt "$kversion" "3.14"; }; then
-          selected_cc=gcc-4.8
-        fi
-      ;;
-    esac
+    if [ "$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"
+        KCPPFLAGS="-fno-pie"
+        export KAFLAGS KCFLAGS KCPPFLAGS
+    fi
 
     export CC="${CROSS_COMPILE:-}${selected_cc}"
+    export HOSTCC="${selected_cc}"
 
     cd -
 }
@@ -141,8 +140,8 @@ build_linux_kernel() {
             exit 0
           fi
         fi
-        fakeroot debian/rules clean
-        fakeroot debian/rules genconfigs
+        fakeroot debian/rules clean KW_DEFCONFIG_DIR=.
+        fakeroot debian/rules genconfigs KW_DEFCONFIG_DIR=.
         cp CONFIGS/"${ubuntu_config}" .config
         ;;
       *)
@@ -208,6 +207,9 @@ build_linux_kernel() {
     # Cause problems with inline assembly on i386
     sed -i "s/CONFIG_DEBUG_SECTION_MISMATCH=y/# CONFIG_DEBUG_SECTION_MISMATCH is not set/g" .config
 
+    # Don't build samples, they are broken on some kernel releases
+    sed -i "s/CONFIG_SAMPLES=y/# CONFIG_SAMPLES is not set/g" .config
+
     # 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