kernel: Add kernel specific STRIP variable

strip can be coming from binutils or from llvm
in some cases llvm-strip can fail on kernel

Subprocess output:aarch64-yoe-linux-llvm-strip: error: Link field value 28 in section .rela.dyn is not a symbol table

This helps in selecting which strip is used when building kernel

(From OE-Core rev: 03973c8c1c93ddb1c8e05b773bfcc45aed73a99f)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

5 files changed, 19 insertions, 3 deletions

diff --git a/meta/classes-recipe/kernel-arch.bbclass b/meta/classes-recipe/kernel-arch.bbclass
index 5877048916..6e19dbbba8 100644
--- a/meta/classes-recipe/kernel-arch.bbclass
+++ b/meta/classes-recipe/kernel-arch.bbclass
@@ -70,10 +70,13 @@ TARGET_AR_KERNEL_ARCH ?= ""
 HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
 TARGET_OBJCOPY_KERNEL_ARCH ?= ""
 HOST_OBJCOPY_KERNEL_ARCH ?= "${TARGET_OBJCOPY_KERNEL_ARCH}"
+TARGET_STRIP_KERNEL_ARCH ?= ""
+HOST_STRIP_KERNEL_ARCH ?= "${TARGET_STRIP_KERNEL_ARCH}"
 
 KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} -fuse-ld=bfd ${DEBUG_PREFIX_MAP} -fdebug-prefix-map=${STAGING_KERNEL_DIR}=${KERNEL_SRC_PATH} -fdebug-prefix-map=${STAGING_KERNEL_BUILDDIR}=${KERNEL_SRC_PATH}"
 KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"
 KERNEL_AR = "${CCACHE}${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}"
 KERNEL_OBJCOPY = "${CCACHE}${HOST_PREFIX}objcopy ${HOST_OBJCOPY_KERNEL_ARCH}"
+KERNEL_STRIP = "${CCACHE}${HOST_PREFIX}strip ${HOST_STRIP_KERNEL_ARCH}"
 TOOLCHAIN ?= "gcc"
 
diff --git a/meta/classes-recipe/kernel-devicetree.bbclass b/meta/classes-recipe/kernel-devicetree.bbclass
index b3bae32f9e..1b60c14740 100644
--- a/meta/classes-recipe/kernel-devicetree.bbclass
+++ b/meta/classes-recipe/kernel-devicetree.bbclass
@@ -73,7 +73,7 @@ do_compile:append() {
 
         for dtbf in ${KERNEL_DEVICETREE}; do
                 dtb=`normalize_dtb "$dtbf"`
-                oe_runmake $dtb CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" ${KERNEL_EXTRA_ARGS}
+                oe_runmake $dtb CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" STRIP="${KERNEL_STRIP}" ${KERNEL_EXTRA_ARGS}
         done
 }
 
diff --git a/meta/classes-recipe/kernel-yocto.bbclass b/meta/classes-recipe/kernel-yocto.bbclass
index 108b7e6752..4ac977b122 100644
--- a/meta/classes-recipe/kernel-yocto.bbclass
+++ b/meta/classes-recipe/kernel-yocto.bbclass
@@ -455,7 +455,7 @@ do_kernel_configme() {
                 bbfatal_log "Could not find configuration queue (${meta_dir}/config.queue)"
         fi
 
-        CFLAGS="${CFLAGS} ${TOOLCHAIN_OPTIONS}" HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}" CC="${KERNEL_CC}" LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1
+        CFLAGS="${CFLAGS} ${TOOLCHAIN_OPTIONS}" HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}" CC="${KERNEL_CC}" LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" STRIP="${KERNEL_STRIP}" ARCH=${ARCH} merge_config.sh -O ${B} ${config_flags} ${configs} > ${meta_dir}/cfg/merge_config_build.log 2>&1
         if [ $? -ne 0 -o ! -f ${B}/.config ]; then
                 bberror "Could not generate a .config for ${KMACHINE}-${LINUX_KERNEL_TYPE}"
                 if [ ${KCONF_AUDIT_LEVEL} -gt 1 ]; then
@@ -490,6 +490,7 @@ python do_config_analysis() {
     env['LD'] = d.getVar('KERNEL_LD')
     env['CC'] = d.getVar('KERNEL_CC')
     env['OBJCOPY'] = d.getVar('KERNEL_OBJCOPY')
+    env['STRIP'] = d.getVar('KERNEL_STRIP')
     env['ARCH'] = d.getVar('ARCH')
     env['srctree'] = s
 
@@ -552,6 +553,7 @@ python do_kernel_configcheck() {
     env['LD'] = d.getVar('KERNEL_LD')
     env['CC'] = d.getVar('KERNEL_CC')
     env['OBJCOPY'] = d.getVar('KERNEL_OBJCOPY')
+    env['STRIP'] = d.getVar('KERNEL_STRIP')
     env['ARCH'] = d.getVar('ARCH')
     env['srctree'] = s
 
diff --git a/meta/classes-recipe/kernel.bbclass b/meta/classes-recipe/kernel.bbclass
index 9c8036f4df..e82b696d1a 100644
--- a/meta/classes-recipe/kernel.bbclass
+++ b/meta/classes-recipe/kernel.bbclass
@@ -235,7 +235,7 @@ UBOOT_LOADADDRESS ?= "${UBOOT_ENTRYPOINT}"
 # Some Linux kernel configurations need additional parameters on the command line
 KERNEL_EXTRA_ARGS ?= ""
 
-EXTRA_OEMAKE += ' CC="${KERNEL_CC}" LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}"'
+EXTRA_OEMAKE += ' CC="${KERNEL_CC}" LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" STRIP="${KERNEL_STRIP}"'
 EXTRA_OEMAKE += ' HOSTCC="${BUILD_CC}" HOSTCFLAGS="${BUILD_CFLAGS}" HOSTLDFLAGS="${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}"'
 EXTRA_OEMAKE += ' HOSTCXX="${BUILD_CXX}" HOSTCXXFLAGS="${BUILD_CXXFLAGS}"'
 
@@ -334,6 +334,10 @@ kernel_do_transform_bundled_initramfs() {
 }
 do_transform_bundled_initramfs[dirs] = "${B}"
 
+python do_package:prepend () {
+    os.environ['STRIP'] = d.getVar('KERNEL_STRIP')
+}
+
 python do_devshell:prepend () {
     os.environ["LDFLAGS"] = ''
 }
diff --git a/meta/classes-recipe/module.bbclass b/meta/classes-recipe/module.bbclass
index b3b852be5f..f2f0b25a2d 100644
--- a/meta/classes-recipe/module.bbclass
+++ b/meta/classes-recipe/module.bbclass
@@ -20,6 +20,10 @@ python __anonymous () {
     d.setVar('KBUILD_EXTRA_SYMBOLS', " ".join(extra_symbols))
 }
 
+python do_package:prepend () {
+    os.environ['STRIP'] = d.getVar('KERNEL_STRIP')
+}
+
 python do_devshell:prepend () {
     os.environ['CFLAGS'] = ''
     os.environ['CPPFLAGS'] = ''
@@ -33,6 +37,7 @@ python do_devshell:prepend () {
     os.environ['LD'] = d.getVar('KERNEL_LD')
     os.environ['AR'] = d.getVar('KERNEL_AR')
     os.environ['OBJCOPY'] = d.getVar('KERNEL_OBJCOPY')
+    os.environ['STRIP'] = d.getVar('KERNEL_STRIP')
     os.environ['O'] = d.getVar('STAGING_KERNEL_BUILDDIR')
     kbuild_extra_symbols = d.getVar('KBUILD_EXTRA_SYMBOLS')
     if kbuild_extra_symbols:
@@ -47,6 +52,7 @@ module_do_compile() {
                    KERNEL_VERSION=${KERNEL_VERSION}    \
                    CC="${KERNEL_CC}" LD="${KERNEL_LD}" \
                    AR="${KERNEL_AR}" OBJCOPY="${KERNEL_OBJCOPY}" \
+                   STRIP="${KERNEL_STRIP}" \
                    O=${STAGING_KERNEL_BUILDDIR} \
                    KBUILD_EXTRA_SYMBOLS="${KBUILD_EXTRA_SYMBOLS}" \
                    ${MAKE_TARGETS}
@@ -57,6 +63,7 @@ module_do_install() {
         oe_runmake DEPMOD=echo MODLIB="${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}" \
                    INSTALL_FW_PATH="${D}${nonarch_base_libdir}/firmware" \
                    CC="${KERNEL_CC}" LD="${KERNEL_LD}" OBJCOPY="${KERNEL_OBJCOPY}" \
+                   STRIP="${KERNEL_STRIP}" \
                    O=${STAGING_KERNEL_BUILDDIR} \
                    ${MODULES_INSTALL_TARGET}