[PATCH 0/2] move do_kernel_link_vmlinux() into kernel.bbclass

[PATCH 0/2] move do_kernel_link_vmlinux() into kernel.bbclass

[Andre McCurdy]

do_kernel_link_vmlinux(), or something like it, is useful for MIPS,
since MIPS has no support for zImage images:

  http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/mips/Makefile#n400

Moving do_kernel_link_vmlinux() from kernel-yocto.bbclass into
kernel.bbclass makes the task available to non-yocto kernels and so
avoids the need to duplicate or re-implement it in kernel recipes
based on kernel.bbclass.

Andre McCurdy (2):
  kernel-yocto.bbclass: remove do_kernel_link_vmlinux from SRCTREECOVEREDTASKS
  kernel-yocto.bbclass: move do_kernel_link_vmlinux() into kernel.bbclass

 meta/classes/kernel-yocto.bbclass | 14 +-------------
 meta/classes/kernel.bbclass       | 12 ++++++++++++
 2 files changed, 13 insertions(+), 13 deletions(-)

-- 
1.9.1

[PATCH 1/2] kernel-yocto.bbclass: remove do_kernel_link_vmlinux from SRCTREECOVEREDTASKS

[Andre McCurdy]

The do_kernel_link_vmlinux() task modifies the build directory (not
the source tree) and should not be skipped when externalsrc is being
used.

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
---
 meta/classes/kernel-yocto.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 00d9667..3762d1d 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -1,5 +1,5 @@
 # remove tasks that modify the source tree in case externalsrc is inherited
-SRCTREECOVEREDTASKS += "do_kernel_link_vmlinux do_kernel_configme do_validate_branches do_kernel_configcheck do_kernel_checkout do_shared_workdir do_fetch do_unpack do_patch"
+SRCTREECOVEREDTASKS += "do_kernel_configme do_validate_branches do_kernel_configcheck do_kernel_checkout do_shared_workdir do_fetch do_unpack do_patch"
 
 # returns local (absolute) path names for all valid patches in the
 # src_uri
-- 
1.9.1

[PATCH 2/2] kernel-yocto.bbclass: move do_kernel_link_vmlinux() into kernel.bbclass

[Andre McCurdy]

Move do_kernel_link_vmlinux() from kernel-yocto.bbclass into
kernel.bbclass so that it's available to any kernel recipe.

Note that the task is not enabled by default in kernel-yocto.bbclass,
so don't enable by default in kernel.bbclass either. To enable, see
the example in linux-yocto.inc, ie:

  addtask kernel_link_vmlinux after do_compile before do_install

Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
---
 meta/classes/kernel-yocto.bbclass | 12 ------------
 meta/classes/kernel.bbclass       | 12 ++++++++++++
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/meta/classes/kernel-yocto.bbclass b/meta/classes/kernel-yocto.bbclass
index 3762d1d..558515e 100644
--- a/meta/classes/kernel-yocto.bbclass
+++ b/meta/classes/kernel-yocto.bbclass
@@ -348,18 +348,6 @@ do_validate_branches() {
 	fi
 }
 
-# Many scripts want to look in arch/$arch/boot for the bootable
-# image. This poses a problem for vmlinux based booting. This 
-# task arranges to have vmlinux appear in the normalized directory
-# location.
-do_kernel_link_vmlinux() {
-	if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
-		mkdir ${B}/arch/${ARCH}/boot
-	fi
-	cd ${B}/arch/${ARCH}/boot
-	ln -sf ../../../vmlinux
-}
-
 OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT"
 KBUILD_OUTPUT = "${B}"
 
diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 4ce1611..2e60139 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -408,6 +408,18 @@ python split_kernel_packages () {
     do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.(bin|fw|cis|dsp)$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')
 }
 
+# Many scripts want to look in arch/$arch/boot for the bootable
+# image. This poses a problem for vmlinux based booting. This 
+# task arranges to have vmlinux appear in the normalized directory
+# location.
+do_kernel_link_vmlinux() {
+	if [ ! -d "${B}/arch/${ARCH}/boot" ]; then
+		mkdir ${B}/arch/${ARCH}/boot
+	fi
+	cd ${B}/arch/${ARCH}/boot
+	ln -sf ../../../vmlinux
+}
+
 do_strip() {
 	if [ -n "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" ]; then
 		if [ "${KERNEL_IMAGETYPE}" != "vmlinux" ]; then
-- 
1.9.1

Re: [PATCH 0/2] move do_kernel_link_vmlinux() into kernel.bbclass

[Andre McCurdy]

On Tue, Dec 22, 2015 at 4:12 PM, Andre McCurdy <armccurdy@gmail.com> wrote:
> do_kernel_link_vmlinux(), or something like it, is useful for MIPS,
> since MIPS has no support for zImage images:
>
>   http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/mips/Makefile#n400
>
> Moving do_kernel_link_vmlinux() from kernel-yocto.bbclass into
> kernel.bbclass makes the task available to non-yocto kernels and so
> avoids the need to duplicate or re-implement it in kernel recipes
> based on kernel.bbclass.

Ping. Any issues with these changes?

> Andre McCurdy (2):
>   kernel-yocto.bbclass: remove do_kernel_link_vmlinux from SRCTREECOVEREDTASKS
>   kernel-yocto.bbclass: move do_kernel_link_vmlinux() into kernel.bbclass
>
>  meta/classes/kernel-yocto.bbclass | 14 +-------------
>  meta/classes/kernel.bbclass       | 12 ++++++++++++
>  2 files changed, 13 insertions(+), 13 deletions(-)
>
> --
> 1.9.1
>