| 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 |