1# SPDX-License-Identifier: GPL-2.0-only 2# RISC-V VDSO CFI Makefile 3# This Makefile builds the VDSO with CFI support when CONFIG_RISCV_USER_CFI is enabled 4 5# setting VDSO_CFI_BUILD triggers build for vdso differently 6VDSO_CFI_BUILD := 1 7 8# Set the source directory to the main vdso directory 9src := $(srctree)/arch/riscv/kernel/vdso 10 11# Copy all .S and .c files from vdso directory to vdso_cfi object build directory 12vdso_c_sources := $(wildcard $(src)/*.c) 13vdso_S_sources := $(wildcard $(src)/*.S) 14vdso_c_objects := $(addprefix $(obj)/, $(notdir $(vdso_c_sources))) 15vdso_S_objects := $(addprefix $(obj)/, $(notdir $(vdso_S_sources))) 16 17$(vdso_S_objects): $(obj)/%.S: $(src)/%.S 18 $(Q)cp $< $@ 19 20$(vdso_c_objects): $(obj)/%.c: $(src)/%.c 21 $(Q)cp $< $@ 22 23# Include the main VDSO Makefile which contains all the build rules and sources 24# The VDSO_CFI_BUILD variable will be passed to it to enable CFI compilation 25include $(src)/Makefile 26