# Copyright 2020 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/components.gni")

# micro-ecc library
source_set("micro-ecc") {
  sources = [ "uECC.c" ]
  public = [
    "asm_arm.inc",
    "asm_arm_mult_square.inc",
    "asm_arm_mult_square_umaal.inc",
    "asm_avr.inc",
    "asm_avr_mult_square.inc",
    "curve-specific.inc",
    "platform-specific.inc",
    "types.h",
    "uECC.h",
    "uECC_vli.h",
  ]
  public_configs = [ ":micro-ecc_config" ]
  deps = [
    ":micro-ecc-headers",
    "//zircon/system/ulib/zx",
  ]

  # TODO(fxb/58162): delete the below and fix compiler warnings
  configs += [ "//build/config:Wno-conversion" ]
}

copy("micro-ecc-headers") {
  sources = [
    "types.h",
    "uECC.h",
    "uECC_vli.h",
  ]
  outputs = [ "$target_gen_dir/include/micro-ecc/{{source_file_part}}" ]
}

config("micro-ecc_config") {
  include_dirs = [
    "$target_gen_dir/include",
    "$target_gen_dir/include/micro-ecc",
  ]

  # TODO(fxb/53953): Dependent libraries assume this word size, which should
  # work for arm, arm64, x86, and x86_64 variants. After unwinding those
  # assumptions, uECC_WORD_SIZE should be removed from this config.
  defines = [
    "uECC_ENABLE_VLI_API",
    "uECC_WORD_SIZE=4",
  ]
}

# micro-ecc test binaries
template("micro_ecc_test") {
  assert(defined(invoker.sources), "must specify sources")
  executable("${target_name}_bin") {
    testonly = true
    visibility = [ ":*" ]
    sources = invoker.sources
    configs += [ ":micro-ecc-test_config" ]
    deps = [
      ":micro-ecc",
      "//src/sys/testing/elftest",
    ]
  }
  fuchsia_unittest_component(target_name) {
    deps = [ ":${target_name}_bin" ]
  }
}

micro_ecc_test("compress_test") {
  sources = [ "test/test_compress.c" ]
}

micro_ecc_test("compute_test") {
  sources = [ "test/test_compute.c" ]
}

micro_ecc_test("ecdh_test") {
  sources = [ "test/test_ecdh.c" ]
}

micro_ecc_test("ecdsa_test") {
  sources = [ "test/test_ecdsa.c" ]
}

config("micro-ecc-test_config") {
  configs = [ ":micro-ecc_config" ]
}

# micro-ecc test package
fuchsia_test_package("micro-ecc-tests") {
  test_components = [
    ":compress_test",
    ":compute_test",
    ":ecdh_test",
    ":ecdsa_test",
  ]
}