[thirdparty/linux.git] / lib / vdso / Makefile

# SPDX-License-Identifier: GPL-2.0

GENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH))

c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c)

# This cmd checks that the vdso library does not contain dynamic relocations.
# It has to be called after the linking of the vdso library and requires it
# as a parameter.
#
# As a workaround for some GNU ld ports which produce unneeded R_*_NONE
# dynamic relocations, ignore R_*_NONE.
quiet_cmd_vdso_check = VDSOCHK $@
      cmd_vdso_check = if $(READELF) -rW $@ | grep -v _NONE | grep -q " R_\w*_"; \
		       then (echo >&2 "$@: dynamic relocations are not supported"; \
			     rm -f $@; /bin/false); fi
Commit	Line	Data
00b26474 VF	1	# SPDX-License-Identifier: GPL-2.0
	2
	3	GENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
	4	GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH))
	5
	6	c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c)
	7
aff69273	8	# This cmd checks that the vdso library does not contain dynamic relocations.
00b26474 VF	9	# It has to be called after the linking of the vdso library and requires it
	10	# as a parameter.
	11	#
aff69273 FS	12	# As a workaround for some GNU ld ports which produce unneeded R_*_NONE
aff69273 FS	13	# dynamic relocations, ignore R_*_NONE.
00b26474	14	quiet_cmd_vdso_check = VDSOCHK $@
aff69273	15	cmd_vdso_check = if $(READELF) -rW $@ \| grep -v _NONE \| grep -q " R_\w*_"; \
00b26474 VF	16	then (echo >&2 "$@: dynamic relocations are not supported"; \
00b26474 VF	17	rm -f $@; /bin/false); fi