1*4882a593Smuzhiyun# SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunGENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST))) 4*4882a593SmuzhiyunGENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH)) 5*4882a593Smuzhiyun 6*4882a593Smuzhiyunc-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c) 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun# This cmd checks that the vdso library does not contain absolute relocation 9*4882a593Smuzhiyun# It has to be called after the linking of the vdso library and requires it 10*4882a593Smuzhiyun# as a parameter. 11*4882a593Smuzhiyun# 12*4882a593Smuzhiyun# $(ARCH_REL_TYPE_ABS) is defined in the arch specific makefile and corresponds 13*4882a593Smuzhiyun# to the absolute relocation types printed by "objdump -R" and accepted by the 14*4882a593Smuzhiyun# dynamic linker. 15*4882a593Smuzhiyunifndef ARCH_REL_TYPE_ABS 16*4882a593Smuzhiyun$(error ARCH_REL_TYPE_ABS is not set) 17*4882a593Smuzhiyunendif 18*4882a593Smuzhiyun 19*4882a593Smuzhiyunquiet_cmd_vdso_check = VDSOCHK $@ 20*4882a593Smuzhiyun cmd_vdso_check = if $(OBJDUMP) -R $@ | grep -E -h "$(ARCH_REL_TYPE_ABS)"; \ 21*4882a593Smuzhiyun then (echo >&2 "$@: dynamic relocations are not supported"; \ 22*4882a593Smuzhiyun rm -f $@; /bin/false); fi 23