xref: /build/config/components/musl/BUILD.gn

# Copyright (c) 2024 Huawei Device Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License

import("//build/config/clang/clang.gni")
import("//build/config/ohos/musl.gni")
import("//build/ohos.gni")

config("soft_musl_config") {
  configs = [
    "//build/config/compiler:compiler_cpu_abi",
    "//build/config/coverage:default_coverage",
  ]

  musl_out_dir = get_label_info(musl_target, "target_out_dir")

  include_dirs = [
    "${musl_out_dir}/${musl_ported_dir}/arch/${musl_arch}",
    "${musl_out_dir}/${musl_ported_dir}/arch/generic",
    "${musl_out_dir}/${musl_ported_dir}/src/internal",
    "${musl_out_dir}/${musl_ported_dir}/src/include",
    "${musl_out_dir}/${musl_ported_dir}/src/gwp_asan",
    "${musl_out_dir}/${musl_ported_dir}/src/hook",
    "${musl_out_dir}/${musl_ported_dir}/src/network",
    "${musl_out_dir}/${musl_ported_dir}/include",
    "${musl_out_dir}/${musl_inc_out_dir}",
  ]

  cflags_basic = [
    "--target=${musl_target_triple}",
    "-Wall",
    "-Wl,-z,relro,-z,now,-z,noexecstack",
  ]

  if (musl_arch == "arm") {
    cflags_basic += [ "-mtp=cp15" ]
  } else if (musl_arch == "aarch64") {
  }

  cflags_auto = [
    "-D_XOPEN_SOURCE=700",
    "-g",
    "-pipe",
    "-fno-omit-frame-pointer",
    "-ffunction-sections",
    "-fdata-sections",
    "-Werror=implicit-function-declaration",
    "-Werror=implicit-int",
    "-Werror=pointer-sign",
    "-Werror=pointer-arith",
    "-Qunused-arguments",
    "-Wno-int-conversion",
  ]

  if (is_llvm_build) {
    cflags_auto += [
      "-fno-unwind-tables",
      "-fno-asynchronous-unwind-tables",
    ]
  } else {
    cflags_auto += [
      "-funwind-tables",
      "-fasynchronous-unwind-tables",
    ]
  }

  if (is_asan && use_hwasan) {
    cflags_auto += [ "-DENABLE_HWASAN" ]
  }

  if (!is_asan && musl_arch != "mips") {
    cflags_auto += [
      "-DHOOK_ENABLE",
      "-DOHOS_SOCKET_HOOK_ENABLE",
    ]
  }

  if (!is_llvm_build && !is_asan && musl_arch != "mips") {
    cflags_auto += [ "-DOHOS_FDTRACK_HOOK_ENABLE" ]
  }

  if (musl_arch == "mips" && musl_is_legacy) {
    cflags_auto += [ "-mnan=legacy" ]
  }

  if (musl_use_pthread_cancel) {
    cflags_auto += [ "-DFEATURE_PTHREAD_CANCEL" ]
  }

  cflags_auto += [ "-DRESERVE_SIGNAL_STACK" ]
  cflags_auto += [ "-DDFX_SIGNAL_LIBC" ]

  cflags_c99fse = [
    "-std=c99",
    "-nostdinc",
    "-Wa,--noexecstack",
  ]

  cflags_all = cflags_basic + cflags_c99fse + cflags_auto

  cflags = cflags_all

  defines = [ "BROKEN_VFP_ASM" ]
  if (!is_llvm_build) {
    defines += [ "FEATURE_ATEXIT_CB_PROTECT" ]
  }
  if (is_standard_system) {
    defines += [
      "OHOS_DNS_PROXY_BY_NETSYS=1",
      "OHOS_FWMARK_CLIENT_BY_NETSYS=1",
      "OHOS_PERMISSION_INTERNET=1",
      "OHOS_DISABLE_IPV6=0",
    ]
  }

  if (!is_standard_system && defined(musl_enable_musl_log)) {
    if (musl_enable_musl_log) {
      defines += [ "ENABLE_MUSL_LOG" ]
    }
  }

  dynamic_list = rebase_path("${musl_out_dir}/${musl_ported_dir}/dynamic.list")

  ldflags = cflags_all
  ldflags += [
    "--target=${musl_target_triple}",
    "-fuse-ld=lld",
    "-Wl,--sort-section,alignment",
    "-Wl,--sort-common",
    "-Wl,--gc-sections",
    "-Wl,--hash-style=both",
    "-Wl,--no-undefined",
    "-Wl,--dynamic-list=${dynamic_list}",
    "-Wl,--build-id=md5",
  ]
  if (musl_arch == "mips") {
    ldflags -= [ "-Wl,--hash-style=both" ]
  }
  asmflags = cflags
}