[OS-BUILD PATCHv3 0/3] Add clang config framework
From: Don Zickus on gitlab.com
Merge Request: https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2654
Compiling for clang is getting trickier to do because the configs are
different than gcc in some cases. Mimic the kgcov framework to setup
clang to be easier to update their configs.
This framework is designed to blindly merge.py with any configs fed to
it. This is unlike the build_configs framework where it uses
priority.rhel|fedora rules to merge things.
This leads to strange cases where clang debug configs need different
settings than clang non-debug configs. For non-lto clang, due to clang
bugs it is easy to disable the debug features and get away with this.
But once resolved we will have to reinvestigate. For lto clang, I just
hack out the debug and kgcov config files due to clashing Kconfig depend
rules.
I don't expect this to be a long term solution. Perhaps when our config
rework is fully realized this just melts away. TBD.
Signed-off-by: Don Zickus <dzickus(a)redhat.com>
---
redhat/configs/common/clang/debug/CONFIG_KASAN_STACK | 1 +
redhat/configs/common/clang/debug/CONFIG_KMSAN | 1 +
redhat/configs/common/clang/generic/CONFIG_KASAN_STACK | 1 +
redhat/configs/common/clang/generic/CONFIG_KMSAN | 1 +
redhat/configs/common/clang_lto/debug/README | 0
redhat/configs/common/clang_lto/generic/arm/CONFIG_LTO_CLANG_THIN | 1 +
redhat/configs/common/clang_lto/generic/arm/CONFIG_LTO_NONE | 1 +
redhat/configs/common/clang_lto/generic/x86/CONFIG_LTO_CLANG_THIN | 1 +
redhat/configs/common/clang_lto/generic/x86/CONFIG_LTO_NONE | 1 +
redhat/configs/common/clang_lto/generic/README | 0
redhat/configs/priority.fedora | 4 -
redhat/configs/priority.rhel | 4 -
redhat/configs/priority.snip | 9 +
redhat/kernel.spec.template | 78 ++++++---
14 files changed, 71 insertions(+), 32 deletions(-)