| # Copyright lowRISC contributors. |
| # Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| ##################################################################### |
| # |
| # THIS IS A TEMPORARY SOLUTION |
| # |
| # Eventually, the software team is going to have a Meson-based flow |
| # for building OTBN software. When that exists, this code will go |
| # away. |
| # |
| ##################################################################### |
| |
| # A make fragment for assembling and linking the code snippets. This is |
| # included by ./Makefile, but can be included in other Makefiles too. |
| # |
| # The following variables must be set: |
| # |
| # variable | description |
| # --------------------------------+---------------------------------------- |
| # otbn-code-snippets-obj-dir | Output directory for built objects |
| # otbn-code-snippets-bin-dir | Output directory for built binaries |
| # otbn-code-snippets-util-dir | Path to directory containing OTBN tooling |
| # |
| # The following variables may be set: |
| # |
| # variable | description |
| # --------------------------------+---------------------------------------- |
| # otbn-code-snippets-as | Path to otbn-as (defaults to util dir) |
| # otbn-code-snippets-ld | Path to otbn-ld (defaults to util dir) |
| # |
| # The ugly "otbn-code-snippets-" prefix on variable names is so that this file |
| # can be included in other Makefiles without breaking anything. |
| |
| ifndef otbn-code-snippets-obj-dir |
| $(error otbn-code-snippets-obj-dir not set.) |
| endif |
| ifndef otbn-code-snippets-bin-dir |
| $(error otbn-code-snippets-bin-dir not set.) |
| endif |
| ifndef otbn-code-snippets-util-dir |
| $(error otbn-code-snippets-util-dir not set.) |
| endif |
| |
| # Default values for optional variables |
| otbn-code-snippets-as ?= $(otbn-code-snippets-util-dir)/otbn-as |
| otbn-code-snippets-ld ?= $(otbn-code-snippets-util-dir)/otbn-ld |
| |
| # Get the list of all assembly files in this directory. Strip away directory |
| # and extension to get basenames (used for objects and binaries). |
| otbn-code-snippets-path := $(dir $(realpath $(lastword $(MAKEFILE_LIST)))) |
| otbn-code-snippets-asm-paths := $(wildcard $(otbn-code-snippets-path)*.s) |
| otbn-code-snippets-asm-basenames := $(notdir $(otbn-code-snippets-asm-paths)) |
| otbn-code-snippets-basenames := $(otbn-code-snippets-asm-basenames:.s=) |
| |
| $(sort $(otbn-code-snippets-obj-dir) $(otbn-code-snippets-bin-dir)): |
| mkdir -p $@ |
| |
| # Calculate lists of object and ELF files |
| otbn-code-snippets-objects := \ |
| $(foreach b,$(otbn-code-snippets-basenames),\ |
| $(otbn-code-snippets-obj-dir)/$(b).o) |
| otbn-code-snippets-elfs := \ |
| $(foreach b,$(otbn-code-snippets-basenames),\ |
| $(otbn-code-snippets-bin-dir)/$(b).elf) |
| |
| # Define rules for assembling the source code to make objects |
| $(otbn-code-snippets-objects): \ |
| $(otbn-code-snippets-obj-dir)/%.o: \ |
| $(otbn-code-snippets-path)%.s $(otbn-code-snippets-as) \ |
| | $(otbn-code-snippets-obj-dir) |
| $(otbn-code-snippets-as) -o $@ $< |
| |
| # Define rules for linking objects to make ELFs |
| $(otbn-code-snippets-elfs): \ |
| $(otbn-code-snippets-bin-dir)/%.elf: \ |
| $(otbn-code-snippets-obj-dir)/%.o $(otbn-code-snippets-ld) \ |
| | $(otbn-code-snippets-bin-dir) |
| $(otbn-code-snippets-ld) -o $@ $(otbn-ldflags) $< $(otbn-libs) |
| |
| # |
| # Define any file-specific flags or dependencies |
| # |
| |
| # rsa_1024_dec_test depends on code defined in modexp.s |
| $(otbn-code-snippets-bin-dir)/rsa_1024_dec_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/modexp.o |
| $(otbn-code-snippets-bin-dir)/rsa_1024_dec_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/modexp.o |
| |
| # rsa_1024_enc_test depends on code defined in modexp.s |
| $(otbn-code-snippets-bin-dir)/rsa_1024_enc_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/modexp.o |
| $(otbn-code-snippets-bin-dir)/rsa_1024_enc_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/modexp.o |
| |
| # rsa_verify_test depends on code defined in rsa_verify.s |
| $(otbn-code-snippets-bin-dir)/rsa_verify_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/rsa_verify.o |
| $(otbn-code-snippets-bin-dir)/rsa_verify_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/rsa_verify.o |
| |
| # rsa_verify_test_exp3 depends on code defined in rsa_verify.s |
| $(otbn-code-snippets-bin-dir)/rsa_verify_test_exp3.elf: \ |
| $(otbn-code-snippets-obj-dir)/rsa_verify.o |
| $(otbn-code-snippets-bin-dir)/rsa_verify_test_exp3.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/rsa_verify.o |
| |
| # p256 curve point test depends on p256init, p256isoncurve, defined in p256.s |
| $(otbn-code-snippets-bin-dir)/p256_curve_point_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p256.o |
| $(otbn-code-snippets-bin-dir)/p256_curve_point_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p256.o |
| |
| # p256 scalar mult test depends on p256init, p256scalarmult, defined in p256.s |
| $(otbn-code-snippets-bin-dir)/p256_scalar_mult_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p256.o |
| $(otbn-code-snippets-bin-dir)/p256_scalar_mult_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p256.o |
| |
| # p256 ECDSA sign test depends on p256init, p256sign, defined in p256.s |
| $(otbn-code-snippets-bin-dir)/p256_ecdsa_sign_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p256.o |
| $(otbn-code-snippets-bin-dir)/p256_ecdsa_sign_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p256.o |
| |
| # p256 ECDSA verify test depends on p256init, p256verify, defined in p256.s |
| $(otbn-code-snippets-bin-dir)/p256_ecdsa_verify_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p256.o |
| $(otbn-code-snippets-bin-dir)/p256_ecdsa_verify_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p256.o |
| |
| # p256_ecdsa depends on p256init, p256verify, p256sign, defined in p256.s |
| $(otbn-code-snippets-bin-dir)/p256_ecdsa.elf: \ |
| $(otbn-code-snippets-obj-dir)/p256.o |
| $(otbn-code-snippets-bin-dir)/p256_ecdsa.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p256.o |
| |
| # p256 point addition test depends on proj_add defined in p256.s |
| $(otbn-code-snippets-bin-dir)/p256_proj_add_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p256.o |
| $(otbn-code-snippets-bin-dir)/p256_proj_add_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p256.o |
| |
| # rsa depends on code defined in modexp.s |
| $(otbn-code-snippets-bin-dir)/rsa.elf: \ |
| $(otbn-code-snippets-obj-dir)/modexp.o |
| $(otbn-code-snippets-bin-dir)/rsa.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/modexp.o |
| |
| # p384_proj_add_test depends on p384_proj_add defined in p384.s |
| $(otbn-code-snippets-bin-dir)/p384_proj_add_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_proj_add_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # code in p384_sign.s depends on code defined in p384_base.s |
| $(otbn-code-snippets-bin-dir)/p384_sign.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_sign.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # p384_scalar_mult_test depends on scalar_mult_p384 defined in p384_sign.s |
| $(otbn-code-snippets-bin-dir)/p384_scalar_mult_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_sign.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_scalar_mult_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_sign.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # p384_base_mult_test depends on p384_base_mult defined in p384_sign.s |
| $(otbn-code-snippets-bin-dir)/p384_base_mult_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_sign.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_base_mult_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_sign.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # p384_ecdsa_sign_test depends on p384_sign defined in p384_sign.s |
| $(otbn-code-snippets-bin-dir)/p384_ecdsa_sign_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_sign.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_ecdsa_sign_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_sign.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # code in p384_verify.s depends on code defined in p384_base.s |
| $(otbn-code-snippets-bin-dir)/p384_verify.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_verify.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # p384_ecdsa_verifiy_test depends on p384_verify defined in p384_verify.s |
| $(otbn-code-snippets-bin-dir)/p384_ecdsa_verify_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_verify.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_ecdsa_verify_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_verify.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| |
| # p384_isoncurve_test depends on p384_isoncurve defined in p384_verify.s |
| $(otbn-code-snippets-bin-dir)/p384_isoncurve_test.elf: \ |
| $(otbn-code-snippets-obj-dir)/p384_verify.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
| $(otbn-code-snippets-bin-dir)/p384_isoncurve_test.elf: \ |
| otbn-libs += $(otbn-code-snippets-obj-dir)/p384_verify.o \ |
| $(otbn-code-snippets-obj-dir)/p384_base.o |
