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gator: Get Makefile to work with DKMS

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DKMS uses an absolute paths for $(src) and $(obj) whereas these are
relative paths for other kernel building scenarios. So we need to do
some jiggery-pokery to get the rule for gator_events.h to work in all
situations.

Signed-off-by: Jon Medhurst <tixy@linaro.org>
This commit is contained in:
Jon Medhurst 2012-05-22 16:54:12 +01:00
parent 1b46d3abc3
commit 4e5eee16c9
1 changed files with 9 additions and 3 deletions
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12
drivers/gator/Makefile
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@ -3,6 +3,7 @@ ifneq ($(KERNELRELEASE),)
# Uncomment the following line to enable kernel stack unwinding within gator, or update gator_backtrace.c
# EXTRA_CFLAGS += -DGATOR_KERNEL_STACK_UNWINDING
CONFIG_GATOR ?= m
obj-$(CONFIG_GATOR) := gator.o
gator-y := gator_main.o \
@ -43,16 +44,21 @@ gator-$(CONFIG_ARM) += gator_events_armv6.o \
gator-$(CONFIG_ARM64) += gator_events_ccn-504.o
$(obj)/gator_main.o: gator_events.h
$(obj)/gator_main.o: $(obj)/gator_events.h
clean-files := gator_events.h
# Note, in the recipe below we use "cd $(srctree) && cd $(src)" rather than
# "cd $(srctree)/$(src)" because under DKMS $(src) is an absolute path, and we
# can't just use $(src) because for normal kernel builds this is relative to
# $(srctree)
chk_events.h = :
quiet_chk_events.h = echo ' CHK $@'
silent_chk_events.h = :
gator_events.h: FORCE
$(obj)/gator_events.h: FORCE
@$($(quiet)chk_events.h)
$(Q)cd $(srctree)/$(src) ; $(CONFIG_SHELL) gator_events.sh $(objtree)/$(obj)/$@
$(Q)cd $(srctree) && cd $(src) ; $(CONFIG_SHELL) gator_events.sh $(abspath $@)
else