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# -*- makefile -*-
# vim: set filetype=make :
# Copyright 2020 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Embedded Controller firmware build system - third_party rules/targets
#
# Build and link against libcryptoc.
ifeq ($(CONFIG_LIBCRYPTOC),y)
CRYPTOC_DIR ?= $(realpath ../../third_party/cryptoc)
# SUPPORT_UNALIGNED indicates to libcryptoc that provided data buffers
# may be unaligned and please handle them safely.
cmd_libcryptoc_make = $(MAKE) -C $(CRYPTOC_DIR) \
obj=$(realpath $(out))/cryptoc \
SUPPORT_UNALIGNED=1
cmd_libcryptoc = $(cmd_libcryptoc_make) -q || $(cmd_libcryptoc_make)
ifneq ($(BOARD),host)
CPPFLAGS += -I$(abspath ./builtin)
endif
CPPFLAGS += -I$(CRYPTOC_DIR)/include
CRYPTOC_LDFLAGS := -L$(out)/cryptoc -lcryptoc
# Force the external build each time, so it can look for changed sources.
.PHONY: $(out)/cryptoc/libcryptoc.a
$(out)/cryptoc/libcryptoc.a:
+$(call quiet,libcryptoc,MAKE )
# Link RO and RW against cryptoc.
$(out)/RO/ec.RO.elf $(out)/RO/ec.RO_B.elf: LDFLAGS_EXTRA += $(CRYPTOC_LDFLAGS)
$(out)/RO/ec.RO.elf $(out)/RO/ec.RO_B.elf: $(out)/cryptoc/libcryptoc.a
$(out)/RW/ec.RW.elf $(out)/RW/ec.RW_B.elf: LDFLAGS_EXTRA += $(CRYPTOC_LDFLAGS)
$(out)/RW/ec.RW.elf $(out)/RW/ec.RW_B.elf: $(out)/cryptoc/libcryptoc.a
# Host test executables (including fuzz tests).
$(out)/$(PROJECT).exe: LDFLAGS_EXTRA += $(CRYPTOC_LDFLAGS)
$(out)/$(PROJECT).exe: $(out)/cryptoc/libcryptoc.a
# On-device tests.
test-targets=$(foreach test,$(test-list-y),\
$(out)/RW/$(test).RW.elf $(out)/RO/$(test).RO.elf)
$(test-targets): LDFLAGS_EXTRA += $(CRYPTOC_LDFLAGS)
$(test-targets): $(out)/cryptoc/libcryptoc.a
endif # CONFIG_LIBCRYPTOC
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