#
# This Makefile generates the following header files needed to support qrwlock:
#  1) include/generated/qrwlock.h (from rwlock.h)
#  2) include/generated/qrwlock_types.h (from rwlock_types.h)
#  3) include/generated/qrwlock_api_smp.h (from rwlock_api_smp.h)
#  4) kernel/qrwlock_gen.c (from spinlock.c)
#  5) lib/qrwlock_debug.c (from spinlock_debug.c)
#

qrwlock_h = include/generated/qrwlock.h
qrwlock_types_h = include/generated/qrwlock_types.h
qrwlock_api_smp_h = include/generated/qrwlock_api_smp.h
qrwlock_gen_c = kernel/qrwlock_gen.c
qrwlock_debug_c = lib/qrwlock_debug.c

qlock_files = $(qrwlock_h) $(qrwlock_api_smp_h) $(qrwlock_types_h) \
	      $(qrwlock_gen_c) $(qrwlock_debug_c)

define filechk_qrwlock.h
	(set -e;					\
	 echo "#include <asm/qrwlock.h>";		\
	 sed -e "/__LINUX_SPINLOCK_H/,+2d"		\
	     -e "s/RW/QRW/"				\
	     -e "s/rwlock/qrwlock/g"			\
	     -e "s/read/qread/g;s/write/qwrite/g" )
endef

define filechk_qrwlock_types.h
	(set -e;					\
	 echo "#include <asm-generic/qrwlock_types.h>";	\
	 sed -e "s/RWLOCK/QRWLOCK/;s/RW_LOCK/QRW_LOCK/"	\
	     -e "s/rwlock/qrwlock/g" )
endef

define filechk_qrwlock_api_smp.h
	(set -e;					\
	 sed -e "/__LINUX_SPINLOCK_API_SMP_H/,+2d"	\
	     -e "s/RWLOCK/QRWLOCK/"			\
	     -e "s/rwlock_t/qrwlock_t/g"		\
	     -e "s/read_/qread_/g;s/write_/qwrite_/g" )
endef

dol := $$

define filechk_qrwlock_gen.c
	(set -e;					\
	 sed -e "/BEGIN_SPINLOCK/,/END_SPINLOCK/d"	\
	     -e '/#ifdef CONFIG_DEBUG_LOCK/,$(dol)d'	\
	     -e "/raw_spinlock/d"			\
	     -e "s/read/qread/g;s/write/qwrite/g"	\
	     -e "s/rwlock/qrwlock/" )
endef

define filechk_qrwlock_debug.c
	(set -e;					\
	 echo "#ifdef CONFIG_QUEUED_RWLOCKS";		\
	 sed -e "/BEGIN_SPINLOCK/,/END_SPINLOCK/d"	\
	     -e "/raw_spin/,/EXPORT.*raw_spin/d"	\
	     -e "s/RW/QRW/g;s/rwlock/qrwlock/g"		\
	     -e "s/read_/qread_/g;s/write_/qwrite_/g";	\
	 echo "#endif" )
endef

$(qrwlock_h): include/linux/rwlock.h FORCE
	$(call filechk,qrwlock.h)

$(qrwlock_types_h): include/linux/rwlock_types.h FORCE
	$(call filechk,qrwlock_types.h)

$(qrwlock_api_smp_h): include/linux/rwlock_api_smp.h FORCE
	$(call filechk,qrwlock_api_smp.h)

$(qrwlock_gen_c): kernel/spinlock.c FORCE
	$(call filechk,qrwlock_gen.c)

$(qrwlock_debug_c): lib/spinlock_debug.c FORCE
	$(call filechk,qrwlock_debug.c)