perf: fix build on kernels which don't have ${S}/tools/include/linux/bits.h
* tools/include/linux/bits.h was added in v4.20-rc1 with this commit:
commit
ba4aa02b417f08a0bee5e7b8ed70cac788a7c854
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue Sep 25 10:55:59 2018 -0300
tools include: Adopt linux/bits.h
* also if you're building for such older kernel you will probably see
do_compile failing with:
| config/Makefile:448: Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev
| config/Makefile:495: Python 3 is not yet supported; please set
| config/Makefile:496: PYTHON and/or PYTHON_CONFIG appropriately.
easiest work around is to disable scripting PACKAGECONFIG, because
since oe-core commit:
commit
584af667e0000129bcb5c9e8108485f2f6590eaf
Author: Bruce Ashfield <bruce.ashfield@gmail.com>
Date: Wed Aug 28 22:14:41 2019 -0400
perf: change dependencies on python to python3
The upstream kernel can now handle python3 for the perf scripts, coupled
with the impending EOL of python2, we switch the dependencies in perf
(scripting) to python3.
it now uses python3, but the support for that was added in kernel
v4.17-rc1 with:
commit
66dfdff03d196e51322c6a85c0d8db8bb2bdd655
Author: Jaroslav Skarvada <jskarvad@redhat.com>
Date: Fri Jan 19 21:56:41 2018 +0100
perf tools: Add Python 3 support
Added Python 3 support while keeping Python 2.7 compatibility.
if you really need scripting support than either backport the kernel
patch to your kernel or undo the perf recipe changes.
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
