OSCL-LXR

0001 # SPDX-License-Identifier: GPL-2.0
0002
0003 GENERIC_VDSO_MK_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
0004 GENERIC_VDSO_DIR := $(dir $(GENERIC_VDSO_MK_PATH))
0005
0006 c-gettimeofday-$(CONFIG_GENERIC_GETTIMEOFDAY) := $(addprefix $(GENERIC_VDSO_DIR), gettimeofday.c)
0007
0008 # This cmd checks that the vdso library does not contain absolute relocation
0009 # It has to be called after the linking of the vdso library and requires it
0010 # as a parameter.
0011 #
0012 # $(ARCH_REL_TYPE_ABS) is defined in the arch specific makefile and corresponds
0013 # to the absolute relocation types printed by "objdump -R" and accepted by the
0014 # dynamic linker.
0015 ifndef ARCH_REL_TYPE_ABS
0016 $(error ARCH_REL_TYPE_ABS is not set)
0017 endif
0018
0019 quiet_cmd_vdso_check = VDSOCHK $@
0020       cmd_vdso_check = if $(OBJDUMP) -R $@ | egrep -h "$(ARCH_REL_TYPE_ABS)"; \
0021                        then (echo >&2 "$@: dynamic relocations are not supported"; \
0022                              rm -f $@; /bin/false); fi