linux/linux-ext-rtai.mk

   1 ################################################################################
   2 # Linux RTAI extensions
   3 #
   4 # Patch the linux kernel with RTAI extension
   5 ################################################################################
   6
   7 ifeq ($(BR2_LINUX_KERNEL_EXT_RTAI),y)
   8 # Add dependency to RTAI (user-space) which provide kernel patches
   9 LINUX_PATCH_DEPENDENCIES += rtai
  10
  11 RTAI_PATCH = $(call qstrip,$(BR2_LINUX_KERNEL_EXT_RTAI_PATCH))
  12
  13 ifeq ($(KERNEL_ARCH),i386)
  14 RTAI_ARCH = x86
  15 else ifeq ($(KERNEL_ARCH),x86_64)
  16 RTAI_ARCH = x86
  17 else ifeq ($(KERNEL_ARCH),powerpc)
  18 RTAI_ARCH = ppc
  19 else
  20 RTAI_ARCH = $(KERNEL_ARCH)
  21 endif
  22
  23 # Prepare kernel patch
  24 ifeq ($(RTAI_PATCH),)
  25 define RTAI_PREPARE_KERNEL
  26         kver=`$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelversion` ; \
  27         if test -f $(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/hal-linux-$${kver}-*patch ; then \
  28                 $(APPLY_PATCHES) $(LINUX_DIR)                           \
  29                         $(RTAI_DIR)/base/arch/$(RTAI_ARCH)/patches/     \
  30                         hal-linux-$${kver}-*patch ; \
  31         else \
  32                 echo "No RTAI patch for your kernel version" ; \
  33                 exit 1 ; \
  34         fi
  35 endef
  36 else
  37 define RTAI_PREPARE_KERNEL
  38         $(APPLY_PATCHES)                        \
  39                 $(LINUX_DIR)                    \
  40                 $(dir $(RTAI_PATCH))            \
  41                 $(notdir $(RTAI_PATCH))
  42 endef
  43 endif
  44
  45 LINUX_PRE_PATCH_HOOKS += RTAI_PREPARE_KERNEL
  46
  47 endif #BR2_LINUX_EXT_RTAI