1# Copyright (C) 2015 The Android Open Source Project. 2# 3# Permission to use, copy, modify, and/or distribute this software for any 4# purpose with or without fee is hereby granted, provided that the above 5# copyright notice and this permission notice appear in all copies. 6# 7# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12# OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 14 15# This file is not used in the Android build process! It's used only by Trusty. 16 17 18LOCAL_DIR := $(GET_LOCAL_DIR) 19LOCAL_PATH := $(GET_LOCAL_DIR) 20 21MODULE := $(LOCAL_DIR) 22 23TARGET_ARCH := $(ARCH) 24TARGET_2ND_ARCH := $(ARCH) 25 26# Reset local variables 27LOCAL_CFLAGS := 28LOCAL_C_INCLUDES := 29LOCAL_SRC_FILES := 30LOCAL_SRC_FILES_$(TARGET_ARCH) := 31LOCAL_SRC_FILES_$(TARGET_2ND_ARCH) := 32LOCAL_CFLAGS_$(TARGET_ARCH) := 33LOCAL_CFLAGS_$(TARGET_2ND_ARCH) := 34LOCAL_ADDITIONAL_DEPENDENCIES := 35 36# get target_c_flags, target_c_includes, target_src_files 37MODULE_SRCDEPS += $(LOCAL_DIR)/crypto-sources.mk 38include $(LOCAL_DIR)/crypto-sources.mk 39 40# Some files in BoringSSL use OS functions that aren't supported by Trusty. The 41# easiest way to deal with them is not to include them. As long as no path to 42# the functions defined in these files exists, the linker will be happy. If 43# such a path is created, it'll be a link-time error and something more complex 44# may need to be considered. 45LOCAL_SRC_FILES := $(filter-out src/crypto/bio/connect.c,$(LOCAL_SRC_FILES)) 46LOCAL_SRC_FILES := $(filter-out src/crypto/bio/fd.c,$(LOCAL_SRC_FILES)) 47LOCAL_SRC_FILES := $(filter-out src/crypto/bio/file.c,$(LOCAL_SRC_FILES)) 48LOCAL_SRC_FILES := $(filter-out src/crypto/bio/socket.c,$(LOCAL_SRC_FILES)) 49LOCAL_SRC_FILES := $(filter-out src/crypto/bio/socket_helper.c,$(LOCAL_SRC_FILES)) 50LOCAL_SRC_FILES := $(filter-out src/crypto/x509/by_dir.c,$(LOCAL_SRC_FILES)) 51 52# BoringSSL detects Trusty based on this define and does things like switch to 53# no-op threading functions. 54MODULE_CFLAGS += -DTRUSTY 55 56# The AOSP stdatomic.h clang header does not build against musl. Disable C11 57# atomics. 58MODULE_CFLAGS += -D__STDC_NO_ATOMICS__ 59 60# Define static armcap based on lk build variables 61MODULE_STATIC_ARMCAP := -DOPENSSL_STATIC_ARMCAP 62toarmcap = $(if $(filter-out 0 false,$(2)),-DOPENSSL_STATIC_ARMCAP_$(1),) 63MODULE_STATIC_ARMCAP += $(call toarmcap,NEON,$(USE_ARM_V7_NEON)) 64MODULE_STATIC_ARMCAP += $(call toarmcap,AES,$(USE_ARM_V8_AES)) 65MODULE_STATIC_ARMCAP += $(call toarmcap,PMULL,$(USE_ARM_V8_PMULL)) 66MODULE_STATIC_ARMCAP += $(call toarmcap,SHA1,$(USE_ARM_V8_SHA1)) 67MODULE_STATIC_ARMCAP += $(call toarmcap,SHA256,$(USE_ARM_V8_SHA2)) 68MODULE_CFLAGS += $(MODULE_STATIC_ARMCAP) 69MODULE_ASMFLAGS += $(MODULE_STATIC_ARMCAP) 70 71ifeq (false,$(call TOBOOL,$(ALLOW_FP_USE))) 72# chacha, ghash, vpaes, sha1, and sha256 assembly files use neon instructions, 73# which we aren't allowed to do in the kernel if ALLOW_FP_USE is disabled. This 74# means that the kernel can't use these functions, but we don't need to for now. 75# If someone ever tries to, we will get missing symbols during linking. 76LOCAL_SRC_FILES_$(ARCH) := $(filter-out linux-aarch64/crypto/chacha/chacha-armv8.S,$(LOCAL_SRC_FILES_$(ARCH))) 77LOCAL_SRC_FILES_$(ARCH) := $(filter-out linux-aarch64/crypto/fipsmodule/ghash-neon-armv8.S,$(LOCAL_SRC_FILES_$(ARCH))) 78LOCAL_SRC_FILES_$(ARCH) := $(filter-out linux-aarch64/crypto/fipsmodule/vpaes-armv8.S,$(LOCAL_SRC_FILES_$(ARCH))) 79LOCAL_SRC_FILES_$(ARCH) := $(filter-out linux-aarch64/crypto/fipsmodule/sha1-armv8.S,$(LOCAL_SRC_FILES_$(ARCH))) 80LOCAL_SRC_FILES_$(ARCH) := $(filter-out linux-aarch64/crypto/fipsmodule/sha256-armv8.S,$(LOCAL_SRC_FILES_$(ARCH))) 81LOCAL_SRC_FILES_$(ARCH) := $(filter-out linux-aarch64/crypto/test/trampoline-armv8.S,$(LOCAL_SRC_FILES_$(ARCH))) 82endif 83 84MODULE_SRCS += $(addprefix $(LOCAL_DIR)/,$(LOCAL_SRC_FILES)) 85MODULE_SRCS += $(addprefix $(LOCAL_DIR)/,$(LOCAL_SRC_FILES_$(ARCH))) 86 87MODULE_INCLUDES += $(LOCAL_DIR)/src/crypto 88 89MODULE_EXPORT_INCLUDES += $(LOCAL_DIR)/src/include 90 91MODULE_LIBRARY_DEPS += \ 92 trusty/user/base/lib/openssl-stubs \ 93 94include make/library.mk 95