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 <<
8 7
9 # This cmd checks that the vdso library does n !! 8 # This cmd checks that the vdso library does not contain absolute relocation
10 # It has to be called after the linking of the 9 # It has to be called after the linking of the vdso library and requires it
11 # as a parameter. 10 # as a parameter.
12 # 11 #
13 # As a workaround for some GNU ld ports which !! 12 # $(ARCH_REL_TYPE_ABS) is defined in the arch specific makefile and corresponds
14 # dynamic relocations, ignore R_*_NONE. !! 13 # to the absolute relocation types printed by "objdump -R" and accepted by the
>> 14 # dynamic linker.
>> 15 ifndef ARCH_REL_TYPE_ABS
>> 16 $(error ARCH_REL_TYPE_ABS is not set)
>> 17 endif
>> 18
15 quiet_cmd_vdso_check = VDSOCHK $@ 19 quiet_cmd_vdso_check = VDSOCHK $@
16 cmd_vdso_check = if $(READELF) -rW $@ | !! 20 cmd_vdso_check = if $(OBJDUMP) -R $@ | egrep -h "$(ARCH_REL_TYPE_ABS)"; \
17 then (echo >&2 "$@: dyn 21 then (echo >&2 "$@: dynamic relocations are not supported"; \
18 rm -f $@; /bin/fa 22 rm -f $@; /bin/false); fi
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