1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 2
3 GENERIC_VDSO_MK_PATH := $(abspath $(lastword $ 3 GENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
4 GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PA 4 GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH))
5 5
6 c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) 6 c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c)
7 c-getrandom-$(CONFIG_VDSO_GETRANDOM) := $(addp 7 c-getrandom-$(CONFIG_VDSO_GETRANDOM) := $(addprefix $(GENERIC_VDSO_DIR), getrandom.c)
8 8
9 # This cmd checks that the vdso library does n 9 # This cmd checks that the vdso library does not contain dynamic relocations.
10 # It has to be called after the linking of the 10 # It has to be called after the linking of the vdso library and requires it
11 # as a parameter. 11 # as a parameter.
12 # 12 #
13 # As a workaround for some GNU ld ports which 13 # As a workaround for some GNU ld ports which produce unneeded R_*_NONE
14 # dynamic relocations, ignore R_*_NONE. 14 # dynamic relocations, ignore R_*_NONE.
15 quiet_cmd_vdso_check = VDSOCHK $@ 15 quiet_cmd_vdso_check = VDSOCHK $@
16 cmd_vdso_check = if $(READELF) -rW $@ | 16 cmd_vdso_check = if $(READELF) -rW $@ | grep -v _NONE | grep -q " R_\w*_"; \
17 then (echo >&2 "$@: dyn 17 then (echo >&2 "$@: dynamic relocations are not supported"; \
18 rm -f $@; /bin/fa 18 rm -f $@; /bin/false); fi
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