lib/vdso/Makefile

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