kernel.bbclass: do_sizecheck: update path to build image and do not delete
do_sizecheck has a few issues especially with vmlinux image type.
It breaks because KERNEL_OUTPUT is a path relative to ${B}. When
do_sizecheck runs it does not find the file (because the working
directory is elsewhere) and does not fail.
Also, the image file referenced by KERNEL_OUTPUT may be a link.
Finally, when do_sizecheck deletes the oversized kernel image it leaves
the previously run do_compile task with inaccurate status.
So, do the following:
- specify that the working directory should be ${B}
- use ls -L to reference to the real file, and ensure that the link
file is created
- keep the oversized image file so the status of do_compile is valid
[YOCTO #3514]
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Michel Thebeau <michel.thebeau@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>