xref: /third_party/musl/BUILD.gn

if (is_lite_system && current_os == "ohos") {
  group("sysroot_lite") {
    print("ohos_build_compiler:", ohos_build_compiler)
    print("ohos_kernel_type:", ohos_kernel_type)

    # Mini system of liteos_a needs not prepare for build, so set "kernel_is_prebuilt is true" in
    # config.json to avoid it.
    if (!is_mini_system && !ohos_kernel_is_prebuilt) {
      deps = [ "scripts/build_lite:build" ]
    } else if (!ohos_kernel_is_prebuilt) {
      if (ohos_kernel_type == "liteos_m") {
        all_dependent_configs = [
          "${ohos_kernel_path}:public",
          "${ohos_kernel_path}:kconfig_config",
        ]
      } else if (ohos_kernel_type == "uniproton") {
        all_dependent_configs = [
          "//kernel/uniproton:os_config",
          "//kernel/uniproton:kconfig_config",
        ]
      }
    }
  }
} else {
  import("musl_template.gni")

  group("musl_all") {
    deps = [
      ":musl_headers",
      ":soft_libs",
    ]
  }

  if (musl_arch != "mips" && musl_arch != "riscv64") {
    ohos_prebuilt_etc("ld-musl-namespace-${musl_arch}-test.ini") {
      source = "${musl_dir}/config/ld-musl-namespace-${musl_arch}-test.ini"
    }

    ohos_prebuilt_etc("ld-musl-namespace-${musl_arch}.ini") {
      source = "${musl_dir}/config/ld-musl-namespace-${musl_arch}.ini"
      install_images = [
        "system",
        "updater",
        "ramdisk",
      ]
    }

    group("musl_ns_config") {
      deps = [
        ":ld-musl-namespace-${musl_arch}-test.ini",
        ":ld-musl-namespace-${musl_arch}.ini",
      ]
    }
  } else {
    group("musl_ns_config") {
      deps = []
    }
  }

  group("musl_libs") {
    deps = [
      ":musl_headers",
      ":musl_sysparam",
      ":musl_sysparam_dac",
      ":soft_libs",
    ]
  }

  ohos_prebuilt_etc("musl_sysparam") {
    source = "${musl_dir}/etc/musl.para"
    relative_install_dir = "param"
  }

  ohos_prebuilt_etc("musl_sysparam_dac") {
    source = "${musl_dir}/etc/musl.para.dac"
    relative_install_dir = "param"
  }

  musl_libs("soft_libs") {
  }

  group("musl_headers") {
    deps = [
      ":FreeBSD_copy",
      ":copy_uapi",
      ":create_alltypes_h",
      ":create_syscall_h",
      ":create_version_h",
      ":musl_copy_inc_arpa",
      ":musl_copy_inc_bits",
      ":musl_copy_inc_fortify",
      ":musl_copy_inc_hook",
      ":musl_copy_inc_info",
      ":musl_copy_inc_net",
      ":musl_copy_inc_netinet",
      ":musl_copy_inc_netpacket",
      ":musl_copy_inc_root",
      ":musl_copy_inc_scsi",
      ":musl_copy_inc_sys",
      ":musl_copy_inc_trace",
      ":musl_ns_config",
    ]
  }

  action("create_porting_src") {
    script = "scripts/porting.sh"

    sources_dir = [ "//third_party/musl" ]

    outdir = [ "${target_out_dir}/${musl_ported_dir}" ]

    src_files = musl_src_arch_file
    src_files += musl_src_file
    src_files += musl_src_ldso
    src_files += musl_inc_bits_files
    src_files += musl_inc_arpa_files
    src_files += musl_inc_net_files
    src_files += musl_inc_netinet_files
    src_files += musl_inc_netpacket_files
    src_files += musl_inc_scsi_files
    src_files += musl_inc_sys_files
    src_files += musl_inc_fortify_files
    src_files += musl_inc_root_files
    src_files += musl_inc_info_files
    src_files += musl_inc_trace_files

    src_files += [
      "crt/Scrt1.c",
      "crt/crt1.c",
      "crt/rcrt1.c",
      "tools/mkalltypes.sed",
      "arch/${musl_arch}/bits/alltypes.h.in",
      "arch/${musl_arch}/bits/syscall.h.in",
      "include/alltypes.h.in",
      "VERSION",
      "tools/version.sh",
      "tools/install.sh",
      "scripts/install.py",
      "scripts/create_alltypes.sh",
      "scripts/create_vesion.sh",
      "scripts/create_syscall.sh",
    ]
    if (musl_arch == "riscv64") {
      src_files += [
        "crt/crti.c",
        "crt/crtn.c",
      ]
    } else if (musl_arch == "loongarch64") {
      src_files += [
        "crt/crti.c",
        "crt/crtn.c",
      ]
    } else {
      src_files += [
        "crt/${musl_arch}/crti.s",
        "crt/${musl_arch}/crtn.s",
      ]
    }

    args = [ "-i" ] + rebase_path(sources_dir)
    args += [ "-o" ] + rebase_path(outdir)
    args += [ "-p" ] + [ "${musl_target_os}" ]

    foreach(i, src_files) {
      foreach(s, musl_src_files_ext) {
        if (i == s) {
          src_files -= [ "${s}" ]
        }
      }
    }

    outputs = []
    foreach(s, src_files) {
      outputs += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }

    foreach(s, musl_src_files_ext) {
      outputs += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }

    inputs = []
    foreach(i, src_files) {
      foreach(s, musl_src_linux_files) {
        if (i == s) {
          src_files -= [ "${s}" ]
        }
      }
    }
    foreach(s, src_files) {
      inputs += [ "${musl_dir}/${s}" ]
    }

    foreach(s, musl_src_files_ext) {
      inputs += [ "${musl_dir}/${s}" ]
    }
  }

  action("create_alltypes_h") {
    script = "${target_out_dir}/${musl_ported_dir}/scripts/create_alltypes.sh"

    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/bits/alltypes.h" ]

    sources = [ "${target_out_dir}/${musl_ported_dir}/tools/mkalltypes.sed" ]
    sources += [
      "${target_out_dir}/${musl_ported_dir}/arch/${musl_arch}/bits/alltypes.h.in",
      "${target_out_dir}/${musl_ported_dir}/include/alltypes.h.in",
    ]

    args = [ "-o" ] + rebase_path(outputs, root_build_dir)
    args += rebase_path(sources, root_build_dir)

    deps = [ ":create_porting_src" ]
  }

  action("create_version_h") {
    script = "${target_out_dir}/${musl_ported_dir}/scripts/create_vesion.sh"

    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/version.h" ]

    sources = [
      "${target_out_dir}/${musl_ported_dir}/VERSION",
      "${target_out_dir}/${musl_ported_dir}/tools/version.sh",
    ]

    args = rebase_path(sources, root_build_dir)
    args +=
        [ rebase_path("${target_out_dir}/${musl_inc_out_dir}", root_build_dir) ]

    deps = [ ":create_porting_src" ]
  }

  action("create_syscall_h") {
    script = "${target_out_dir}/${musl_ported_dir}/scripts/create_syscall.sh"

    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/bits/syscall.h" ]

    sources = [ "${target_out_dir}/${musl_ported_dir}/arch/${musl_arch}/bits/syscall.h.in" ]

    args = rebase_path(sources, root_build_dir)
    args += rebase_path(outputs, root_build_dir)

    deps = [ ":create_porting_src" ]
  }

  # if musl_uapi_dir does not exist, then make uapi from musl_linux_kernel_dir
  if (exec_script("/bin/sh",
                  [
                    "-c",
                    "if [ ! -d " + rebase_path(musl_uapi_dir) +
                        " ]; then echo true; else echo false; fi",
                  ],
                  "value")) {
    kernel_dir = rebase_path(musl_linux_kernel_dir)
    kernel_out_dir = "${kernel_dir}/make_output"
    musl_uapi_dir = "${kernel_out_dir}/usr/include"
    make_uapi_cmd = "rm -rf ${musl_uapi_dir}"
    make_uapi_cmd += " && make -C ${kernel_dir} -sj headers O=${kernel_out_dir} ARCH=${target_cpu}"
    make_uapi_cmd += " && cp -f ${kernel_dir}/drivers/staging/android/uapi/ashmem.h ${musl_uapi_dir}/linux/ashmem.h"
    make_uapi_cmd += " && sed -i '/#define _INPUT_H/i#define _UAPI_INPUT_H' ${musl_uapi_dir}/linux/input.h"
    make_uapi_cmd += " && sed -i '/struct __kernel_sockaddr_storage/i#define sockaddr_storage __kernel_sockaddr_storage' ${musl_uapi_dir}/linux/socket.h"
    args_make_uapi = [ "-c" ]
    args_make_uapi += [ make_uapi_cmd ]
    exec_script("/bin/sh", args_make_uapi, "value")
    uapi_from = "make"
  } else {
    uapi_from = "local"
  }

  uapi_full_path = rebase_path(musl_uapi_dir)
  arguments_uapi = [ "-c" ]

  # exclude these files because they need special treatment
  if (uapi_from == "make") {
    exclude_files = "^asm\$|^scsi\$"
  } else {
    exclude_files = "^asm-arm\$|^asm-arm64\$|^scsi\$"
  }

  arguments_uapi +=
      [ "ls ${uapi_full_path} | grep -Ev " + "\"" + "${exclude_files}" + "\"" ]
  uspi_files = exec_script("/bin/sh", arguments_uapi, "list lines")

  # Generate a copy target for each file
  foreach(file, uspi_files) {
    copy("copy_uapi_${file}") {
      sources = [ "${musl_uapi_dir}/${file}" ]
      outputs = [ "${target_out_dir}/${musl_inc_out_dir}/${file}" ]
    }
  }

  group("copy_uapi_scsi") {
    deps = []
    sources = []
    outputs = []
    uapi_scsi_dir = rebase_path("${musl_uapi_dir}/scsi")
    arguments_scsi = [ "-c" ]
    arguments_scsi += [ "ls ${uapi_scsi_dir}" ]
    uapi_scsi_files = exec_script("/bin/sh", arguments_scsi, "list lines")

    # Generate a copy target for each file in scsi dir to avoid being influenced by musl_copy_inc_scsi output
    foreach(file, uapi_scsi_files) {
      copy("copy_uapi_scsi_${file}") {
        sources += [ "${musl_uapi_dir}/scsi/${file}" ]
        outputs += [ "${target_out_dir}/${musl_inc_out_dir}/scsi/${file}" ]
      }
      deps += [ ":copy_uapi_scsi_${file}" ]
    }
  }

  copy("copy_uapi_asm") {
    if (uapi_from == "local") {
      if ("${musl_arch}" == "arm") {
        file_name = "asm-arm"
      } else if ("${musl_arch}" == "riscv64") {
        file_name = "asm-riscv"
      } else if ("${musl_arch}" == "loongarch64") {
        file_name = "asm-loongarch"
      } else {  # aarch64 and x86_64 use same file
        file_name = "asm-arm64"
      }
      sources = [ "${musl_uapi_dir}/${file_name}/asm" ]
    } else {
      sources = [ "${musl_uapi_dir}/asm" ]
    }
    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/asm" ]
  }

  group("copy_uapi") {
    deps = [ ":copy_uapi_scsi" ]

    # We need do different processing for asm according to the source of uapi
    deps += [ ":copy_uapi_asm" ]
    foreach(file, uspi_files) {
      deps += [ ":copy_uapi_${file}" ]
    }
  }

  copy("musl_copy_inc_bits") {
    sources = []
    sources_orig = musl_inc_bits_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/bits/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_arpa") {
    sources = []
    sources_orig = musl_inc_arpa_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/arpa/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_net") {
    sources = []
    sources_orig = musl_inc_net_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/net/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_netinet") {
    sources = []
    sources_orig = musl_inc_netinet_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/netinet/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_netpacket") {
    sources = []
    sources_orig = musl_inc_netpacket_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs = [
      "${target_out_dir}/${musl_inc_out_dir}/netpacket/{{source_file_part}}",
    ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_scsi") {
    sources = []
    sources_orig = musl_inc_scsi_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/scsi/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_sys") {
    sources = []
    sources_orig = musl_inc_sys_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/sys/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_trace") {
    sources = []
    sources_orig = musl_inc_trace_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/trace/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_info") {
    sources = []
    sources_orig = musl_inc_info_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/info/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_fortify") {
    sources = []
    sources_orig = musl_inc_fortify_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/fortify/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_root") {
    sources = []
    sources_orig = musl_inc_root_files
    foreach(s, sources_orig) {
      sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
    }
    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("musl_copy_inc_hook") {
    sources = musl_inc_hook_files
    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/{{source_file_part}}" ]
  }

  group("FreeBSD_copy") {
    deps = [
      ":FreeBSD_headers",
      ":FreeBSD_sys_headers",
    ]
  }

  copy("FreeBSD_headers") {
    sources = freebsd_headers
    outputs = [ "${target_out_dir}/${musl_inc_out_dir}/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  copy("FreeBSD_sys_headers") {
    sources = freebsd_sys_headers
    outputs =
        [ "${target_out_dir}/${musl_inc_out_dir}/sys/{{source_file_part}}" ]
    deps = [ ":create_porting_src" ]
  }

  group("libctest") {
    testonly = true
    deps = [ "libc-test:musl_libc_test" ]
  }

  group("benchmark-musl") {
    testonly = true
    deps = [ "Benchmark/musl:benchmark_musl_group" ]
  }

  static_and_shared_libs_template("static") {
    musl_use_flto = false
    musl_use_gwp_asan = false
  }

  static_and_shared_libs_template("shared") {
    musl_use_flto = true
  }
}