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# Copyright 2014 The Chromium 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/config/android/config.gni")
import("//build/config/sanitizers/sanitizers.gni")
import("//testing/libfuzzer/fuzzer_test.gni")

# Config for us and everybody else depending on BoringSSL.
config("openssl_config") {
  include_dirs = [ "src/include" ]
  if (is_component_build) {
    defines = [ "BORINGSSL_SHARED_LIBRARY" ]
  }
}

# Config internal to this build file.
config("openssl_internal_config") {
  visibility = [ ":*" ]  # Only targets in this file can depend on this.
}

# The list of BoringSSL files is kept in boringssl.gypi.
gypi_values =
    exec_script("//build/gypi_to_gn.py",
                [ rebase_path("//third_party/boringssl/boringssl.gypi") ],
                "scope",
                [ "//third_party/boringssl/boringssl.gypi" ])

# Windows' assembly is built with Yasm. The other platforms use the platform
# assembler.
if (is_win && !is_msan) {
  import("//third_party/yasm/yasm_assemble.gni")
  yasm_assemble("boringssl_asm") {
    if (current_cpu == "x64") {
      sources = gypi_values.boringssl_win_x86_64_sources
    } else if (current_cpu == "x86") {
      sources = gypi_values.boringssl_win_x86_sources
    }
  }
}

component("boringssl") {
  sources = gypi_values.boringssl_crypto_sources
  sources += gypi_values.boringssl_ssl_sources

  public_configs = [ ":openssl_config" ]

  asmflags = []
  cflags = []
  defines = [
    "BORINGSSL_IMPLEMENTATION",
    "BORINGSSL_NO_STATIC_INITIALIZER",
    "OPENSSL_SMALL",
  ]
  deps = []
  if (is_component_build) {
    defines += [ "BORINGSSL_SHARED_LIBRARY" ]
  }

  configs -= [ "//build/config/compiler:chromium_code" ]
  configs += [
    "//build/config/compiler:no_chromium_code",

    # TODO(davidben): Fix size_t truncations in BoringSSL.
    # https://crbug.com/429039
    "//build/config/compiler:no_size_t_to_int_warning",
  ]

  # Also gets the include dirs from :openssl_config
  include_dirs = [ "src/include" ]

  if (current_cpu == "arm" && is_clang) {
    # TODO(hans) Enable integrated-as (crbug.com/124610).
    asmflags += [ "-fno-integrated-as" ]
    if (is_android) {
      rebased_android_toolchain_root =
          rebase_path(android_toolchain_root, root_build_dir)

      # Else /usr/bin/as gets picked up.
      asmflags += [ "-B${rebased_android_toolchain_root}/bin" ]
    }
  }

  if (is_msan) {
    defines += [ "OPENSSL_NO_ASM" ]
  } else if (current_cpu == "x64") {
    if (is_mac || is_ios) {
      sources += gypi_values.boringssl_mac_x86_64_sources
    } else if (is_linux || is_android) {
      sources += gypi_values.boringssl_linux_x86_64_sources
    } else if (is_win) {
      deps += [ ":boringssl_asm" ]
    } else {
      defines += [ "OPENSSL_NO_ASM" ]
    }
  } else if (current_cpu == "x86") {
    if (is_mac || is_ios) {
      sources += gypi_values.boringssl_mac_x86_sources
    } else if (is_linux || is_android) {
      sources += gypi_values.boringssl_linux_x86_sources
    } else if (is_win) {
      deps += [ ":boringssl_asm" ]
    } else {
      defines += [ "OPENSSL_NO_ASM" ]
    }
  } else if (current_cpu == "arm" && (is_linux || is_android)) {
    sources += gypi_values.boringssl_linux_arm_sources
  } else if (current_cpu == "arm64" && (is_linux || is_android)) {
    sources += gypi_values.boringssl_linux_aarch64_sources

    # TODO(davidben): Remove explicit arch flag once https://crbug.com/576858
    # is fixed.
    asmflags += [ "-march=armv8-a+crypto" ]
  } else {
    defines += [ "OPENSSL_NO_ASM" ]
  }

  if (is_nacl) {
    deps += [ "//native_client_sdk/src/libraries/nacl_io" ]
  }
}

fuzzer_test("boringssl_d2i_x509_fuzzer") {
  sources = [
    "src/fuzz/cert.cc",
  ]
  deps = [
    ":boringssl",
  ]
}

fuzzer_test("boringssl_client_bio_write_fuzzer") {
  sources = [
    "src/fuzz/client.cc",
  ]
  deps = [
    ":boringssl",
  ]
}

fuzzer_test("boringssl_d2i_autoprivatekey_fuzzer") {
  sources = [
    "src/fuzz/privkey.cc",
  ]
  deps = [
    ":boringssl",
  ]
}

fuzzer_test("boringssl_server_bio_write_fuzzer") {
  sources = [
    "src/fuzz/server.cc",
  ]
  deps = [
    ":boringssl",
  ]
}