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build system: introduce bug_% feature category

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This introduces a new feature category to declare which bugs are present
in a given build that we cannot fix in RIOT, but need to work around.
These bugs may be silicon bugs, software bugs in ROM, software bugs in
binary blobs needed for a platform, or bugs in the toolchain.

These features behave the same way as `arch_%` features: Every provided
bug is always used, so that we can inspect `FEATURES_USED` to check
which bugs need to be worked around.

Co-authored-by: crasbe <crasbe@gmail.com>
This commit is contained in:
Marian Buschsieweke 2025-04-25 07:50:56 +02:00
parent f69b6667b0
commit 2ed57cb154
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2 changed files with 9 additions and 0 deletions
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2
Makefile.include
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@ -423,6 +423,8 @@ include $(RIOTMAKE)/kconfig.mk
FEATURES_REQUIRED += $(filter arch_%,$(FEATURES_PROVIDED))
# always select CPU core features
FEATURES_REQUIRED += $(filter cpu_core_%,$(FEATURES_PROVIDED))
# always "select" bug affecting the current build
FEATURES_REQUIRED += $(filter bug_%,$(FEATURES_PROVIDED))
# check if required features are provided and update $(FEATURES_USED)
include $(RIOTMAKE)/features_check.inc.mk

7
features.yaml
View File

@ -922,3 +922,10 @@ groups:
open and solder bridges SB4, SB5 and SB6 are closed instead, SPI2 is
connected to the STMmod+/Pmod connector. Request this feature to use
SPI2 with this board configuration.
- title: Bugs in hardware, toolchain, or binary blobs
help: This allows modelling bugs found in boards, so that workarounds can
be enabled for affected builds by inspecting "FEATURES_USED". Any
feature prefixed with "bug_" provided in a build will always be used,
regardless of build configuration.
features: