100b26474SVincenzo Frascino# SPDX-License-Identifier: GPL-2.0 200b26474SVincenzo Frascino 300b26474SVincenzo FrascinoGENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST))) 400b26474SVincenzo FrascinoGENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH)) 500b26474SVincenzo Frascino 600b26474SVincenzo Frascinoc-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c) 7*81723e3aSChristophe Leroyc-getrandom-$(CONFIG_VDSO_GETRANDOM) := $(addprefix $(GENERIC_VDSO_DIR), getrandom.c) 800b26474SVincenzo Frascino 9aff69273SFangrui Song# This cmd checks that the vdso library does not contain dynamic relocations. 1000b26474SVincenzo Frascino# It has to be called after the linking of the vdso library and requires it 1100b26474SVincenzo Frascino# as a parameter. 1200b26474SVincenzo Frascino# 13aff69273SFangrui Song# As a workaround for some GNU ld ports which produce unneeded R_*_NONE 14aff69273SFangrui Song# dynamic relocations, ignore R_*_NONE. 1500b26474SVincenzo Frascinoquiet_cmd_vdso_check = VDSOCHK $@ 16aff69273SFangrui Song cmd_vdso_check = if $(READELF) -rW $@ | grep -v _NONE | grep -q " R_\w*_"; \ 1700b26474SVincenzo Frascino then (echo >&2 "$@: dynamic relocations are not supported"; \ 1800b26474SVincenzo Frascino rm -f $@; /bin/false); fi 19