NetCube-Systems-Austria/kumquat-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

linux: allow br2-externals to provide their own Linux extensions

Browse Source 
Signed-off-by: McCabe, Robert J <robert.mccabe@rockwellcollins.com>
Acked-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
McCabe, Robert J 2019-09-28 12:49:37 -05:00 committed by Thomas Petazzoni
parent a07dd0e0f5
commit c26eafa96c
2 changed files with 23 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
docs/manual/customize-outside-br.txt
View File

@ -219,6 +219,12 @@ BR2_ROOTFS_OVERLAY=$(BR2_EXTERNAL_BAR_42_PATH)/board/<boardname>/overlay/
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE=$(BR2_EXTERNAL_BAR_42_PATH)/board/<boardname>/kernel.config
----
===== Additional Linux kernel extensions
Additional Linux kernel extensions (see xref:linux-kernel-ext[]) can
be added by storing them in the `linux/` directory at the root of a
br2-external tree.
===== Example layout
Here is an example layout using all features of br2-external (the sample
@ -315,6 +321,14 @@ illustration, of course):
| |$(eval $(toolchain-external-package))
| `----
|
|- linux/Config.ext.in
| |config BR2_LINUX_KERNEL_EXT_EXAMPLE_DRIVER
| | bool "example-external-driver"
| | help
| | Example external driver
| |---
|- linux/linux-ext-example-driver.mk
|
|- configs/my-board_defconfig
| |BR2_GLOBAL_PATCH_DIR="$(BR2_EXTERNAL_BAR_42_PATH)/patches/"
| |BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_BAR_42_PATH)/board/my-board/overlay/"

13
linux/linux.mk
View File

@ -514,14 +514,19 @@ endef
#
# Note: our package infrastructure uses the full-path of the last-scanned
# Makefile to determine what package we're currently defining, using the
# last directory component in the path. As such, including other Makefile,
# like below, before we call one of the *-package macro is usally not
# working.
# last directory component in the path. As such, including other Makefiles,
# like below, before we call one of the *-package macros usually doesn't
# work.
# However, since the files we include here are in the same directory as
# the current Makefile, we are OK. But this is a hard requirement: files
# included here *must* be in the same directory!
# included here *must* either be in this same directory OR within a
# another directory with the name "linux" (in the BR2_EXTERNAL case).
include $(sort $(wildcard linux/linux-ext-*.mk))
# Import linux-kernel-extensions from br2-externals
include $(sort $(wildcard $(foreach ext,$(BR2_EXTERNAL_DIRS), \
$(ext)/linux/linux-ext-*.mk)))
LINUX_PATCH_DEPENDENCIES += $(foreach ext,$(LINUX_EXTENSIONS),\
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),$(ext)))