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53785a2c77
Since the move to the kconfig-package infra, linux extensions are
broken.
In our linux package, extensions are applied as pre-patch hooks.
Before the kconfig-package infra, we had custom rules for the
linux-*config targets, which were of the form:
linux-menuconfig: linux-configure
$(MAKE) -C $(LINUX_DIR) menuconfig
This caused the linux tree to be fully configured before running the
configurators, and thus linux dependencies were entirely fullfilled, and
extensions were properly applied.
Since we migrated (in dff25ea), the kconfig-package infra introduces a
(hidden, internal) intermediate step 'kconfig-fixup' and decorelates the
kconfig-part of the configuration from the actual package-part of the
configuration:
linux-configure -------> kconfig-fixup --> .config --> $(LINUX_CONFIG_FILE)
/
linux-menuconfig --'
As thus, this (very useful!) use-case breaks (starting from a clean
Buildroot tree):
make menuconfig
-> enable a kernel and at least one extension
-> save and exit
make linux-menuconfig
-> extensions are not available
Fix that by using the newly-introduced patch-dependencies, so that
extensions are available before we try to patch the linux kernel.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
48 lines
1.3 KiB
Makefile
48 lines
1.3 KiB
Makefile
################################################################################
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# Linux RTAI extensions
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#
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# Patch the linux kernel with RTAI extension
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################################################################################
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ifeq ($(BR2_LINUX_KERNEL_EXT_RTAI),y)
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# Add dependency to RTAI (user-space) which provide kernel patches
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LINUX_PATCH_DEPENDENCIES += rtai
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RTAI_PATCH = $(call qstrip,$(BR2_LINUX_KERNEL_EXT_RTAI_PATCH))
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ifeq ($(KERNEL_ARCH),i386)
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RTAI_ARCH = x86
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else ifeq ($(KERNEL_ARCH),x86_64)
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RTAI_ARCH = x86
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else ifeq ($(KERNEL_ARCH),powerpc)
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RTAI_ARCH = ppc
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else
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RTAI_ARCH = $(KERNEL_ARCH)
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endif
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# Prepare kernel patch
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ifeq ($(RTAI_PATCH),)
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define RTAI_PREPARE_KERNEL
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kver=`$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelversion` ; \
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if test -f $(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/hal-linux-$${kver}-*patch ; then \
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$(APPLY_PATCHES) $(LINUX_DIR) \
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$(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/ \
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hal-linux-$${kver}-*patch ; \
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else \
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echo "No RTAI patch for your kernel version" ; \
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exit 1 ; \
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fi
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endef
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else
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define RTAI_PREPARE_KERNEL
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$(APPLY_PATCHES) \
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$(LINUX_DIR) \
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$(dir $(RTAI_PATCH)) \
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$(notdir $(RTAI_PATCH))
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endef
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endif
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LINUX_PRE_PATCH_HOOKS += RTAI_PREPARE_KERNEL
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endif #BR2_LINUX_EXT_RTAI
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