xref: /kernel/liteos_a/lib/libc/musl/BUILD.gn

# Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
# Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this list of
#    conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice, this list
#    of conditions and the following disclaimer in the documentation and/or other materials
#    provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors may be used
#    to endorse or promote products derived from this software without specific prior written
#    permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

import("//kernel/liteos_a/liteos.gni")
import("$THIRDPARTY_MUSL_DIR/porting/liteos_a/kernel/musl.gni")
import("$THIRDPARTY_OPTIMIZED_ROUTINES_DIR/optimized-routines.gni")

module_switch = defined(LOSCFG_LIBC_MUSL)
module_name = get_path_info(rebase_path("."), "name")
kernel_module(module_name) {
  sources = MUSL_SRC_COMMON

  if (defined(LOSCFG_ARCH_ARM_AARCH32)) {
    sources += MUSL_SRC_ARM
    foreach(f, MUSL_SRC_ARM) {
      sources -= [ string_replace(f, "/arm/", "/") ]
    }
  }

  if (LOSCFG_ARCH_ARM_VER == "armv7-a") {
    sources -= [
      "$MUSLPORTINGDIR/src/string/memchr.c",
      "$MUSLPORTINGDIR/src/string/memcpy.c",
      "$MUSLPORTINGDIR/src/string/strcmp.c",
      "$MUSLPORTINGDIR/src/string/strcpy.c",
      "$MUSLPORTINGDIR/src/string/strlen.c",
    ]
    sources += [
      "src/arch/arm/memcmp.S",
      "src/arch/arm/memset.S",
    ]
    sources += OPTRT_STRING_ARM_SRC_FILES_FOR_ARMV7_A
    asmflags = [
      "-D__strlen_armv6t2=strlen",
      "-D__strcmp_arm=strcmp",
      "-D__memchr_arm=memchr",
    ]
    if (defined(LOSCFG_KERNEL_LMS)) {
      asmflags += [
        "-D__memcpy_arm=__memcpy",
        "-D__strcpy_arm=__strcpy",
      ]
    } else {
      asmflags += [
        "-D__memcpy_arm=memcpy",
        "-D__strcpy_arm=strcpy",
      ]
    }
  } else {
    # arch is not armv7-a
    sources += [
      "src/memcmp.c",
      "src/memset.c",
    ]
  }

  include_dirs = [
    "$MUSLPORTINGDIR/src/include",
    "$MUSLPORTINGDIR/src/internal",
  ]

  public_configs = [ ":public" ]
  configs += [ ":private" ]
}

config("public") {
  cflags = [
    "-isystem",
    rebase_path("$MUSLPORTINGDIR/include"),
  ]
}

config("private") {
  if (defined(LOSCFG_COMPILER_CLANG_LLVM)) {
    cflags = [
      "-Wno-char-subscripts",
      "-Wno-ignored-pragmas",
      "-Wno-strict-prototypes",
    ]
  } else {
    cflags = [
      "-frounding-math",
      "-Wno-unused-but-set-variable",
    ]
  }

  cflags += [
    "-Wno-shift-op-parentheses",
    "-Wno-logical-op-parentheses",
    "-Wno-bitwise-op-parentheses",
    "-Wno-unknown-pragmas",
  ]
}