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
   8 # This cmd checks that the vdso library does not contain absolute relocation
   9 # It has to be called after the linking of the vdso library and requires it
  10 # as a parameter.
  11 #
  12 # $(ARCH_REL_TYPE_ABS) is defined in the arch specific makefile and corresponds
  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
  19 quiet_cmd_vdso_check = VDSOCHK $@
  20       cmd_vdso_check = if $(OBJDUMP) -R $@ | egrep -h "$(ARCH_REL_TYPE_ABS)"; \
  21                        then (echo >&2 "$@: dynamic relocations are not supported"; \
  22                              rm -f $@; /bin/false); fi