<?xml version="1.0" encoding="UTF-8"?>

<!--
    This is an example of how to add custom compiler/linker 
    arguments for a crosscompiler.

    You can use such files with setting the property 'gluegen-cpptasks.file', ie:

        -Dgluegen-cpptasks.file=`pwd`/lib/gluegen-cpptasks-linux-32bit.xml

    In case you want to compile for 32bit on a 64bit machine,
    you might also need to set the 'os.arch' to 'x86'.
    Example: gluegen/make/make.gluegen.all.linux-x86.sh
      -->

<project name="GlueGen-cpptasks-android-aarch64" basedir="." >

<!-- Set OS and ARCH for crosscompilation compiler configuration -->
<target name="gluegen.cpptasks.detect.os.custom">
    <property name="gluegen.cpptasks.detected.os"     value="true" /> 
    <property name="isUnix"                           value="true" /> 
    <property name="isAndroid"                        value="true" /> 
    <property name="isAndroidARM64"                   value="true" /> 
    <property name="jvmDataModel.arg"                 value="-Djnlp.no.jvm.data.model.set=true" /> 
    <property name="isCrosscompilation"               value="true" />
    <property name="android.abi"                      value="${env.ANDROID_ABI}" /> <!-- arm64-v8a -->
    <property name="isAbiEabiGnuArmel"                value="true" />
    <echo message="gluegen.cpptasks.detect.os.custom: GLUEGEN_CPPTASKS_FILE 'gluegen-cpptasks-android-aarch64' done"/>
</target>

<import file="${gluegen.root.abs-path}/make/gluegen-cpptasks-base.xml" optional="false" />

<target name="gluegen.cpptasks.configure.compiler" depends="setup.java.home.dir,declare.linux.android">
    <echo message="Custom forced compiler Android NDK, linker.cfg.android" />
    <compiler id="compiler.cfg.android" name="clang">
      <compilerarg value="--sysroot=${env.ANDROID_TOOLCHAIN_SYSROOT}" />

      <compilerarg value="-v" /> 

      <compilerarg value="-fpic" /> 

      <!-- from sdk cmake start -->
      <compilerarg value="-fdata-sections" />
      <compilerarg value="-ffunction-sections" />
      <compilerarg value="-funwind-tables" />
      <compilerarg value="-fstack-protector-strong" />
      <compilerarg value="-no-canonical-prefixes" />
      <compilerarg value="-nostdinc++" />
      <!-- from sdk cmake end -->

      <compilerarg value="-Wa,--noexecstack" /> 

      <compilerarg value="-target" />
      <compilerarg value="${env.ANDROID_LLVM_TRIPLE}" /> <!-- aarch64-none-linux-android -->
      <!-- compilerarg value="-mabi=lp64" />
      <compilerarg value="-mlittle-endian" />
      <compilerarg value="-march=armv8-a" / -->
      <!-- compilerarg value="-mfloat-abi=softfp" / -->

      <!-- Generic ARM Flags -->
      <compilerarg value="-fno-strict-aliasing"/> <!-- be safe -->

      <compilerarg value="-O2"                  unless="c.compiler.use-debug" /> 
      <!-- compilerarg value="-g"                   unless="c.compiler.use-debug" / -->
      <compilerarg value="-fomit-frame-pointer" unless="c.compiler.use-debug"/> 
      <!-- compilerarg value="-funswitch-loops"     unless="c.compiler.use-debug"/ not supported --> 
      <!-- compilerarg value="-finline-limit=300"   unless="c.compiler.use-debug"/ not supported --> 

      <compilerarg value="-O0"                     if="c.compiler.use-debug" />
      <compilerarg value="-g"                      if="c.compiler.use-debug" />
      <compilerarg value="-fno-omit-frame-pointer" if="c.compiler.use-debug" /> 

      <!-- includepath path="${env.ANDROID_TOOLCHAIN_SYSROOT_INC}" / -->
      <defineset>
        <define name="__unix__" />
        <define name="__LP64__" />     <!-- default pre-defined macro for 64bit unix -->
        <define name="__aarch64__" />  <!-- default pre-defined macro for armv8-a, 64bit -->

        <define name="ANDROID" />
        <define name="_DEBUG"   if="c.compiler.use-debug"/>        
        <define name="DEBUG"    if="c.compiler.use-debug"/>        
        <define name="NDEBUG"   unless="c.compiler.use-debug"/>        
      </defineset>
    </compiler>

    <linker id="linker.cfg.android" name="clang">
      <linkerarg value="--sysroot=${env.ANDROID_TOOLCHAIN_SYSROOT}" />
      <!-- linkerarg value="-L${env.ANDROID_TOOLCHAIN_SYSROOT_LIB_0}" / -->
      <linkerarg value="-L${env.ANDROID_TOOLCHAIN_SYSROOT_LIB_1}" />
      <linkerarg value="-Wl,-rpath-link=${env.ANDROID_TOOLCHAIN_SYSROOT_LIB_1}" />
      
      <linkerarg value="-v" /> 

      <linkerarg value="-fpic" /> 

      <!-- from sdk cmake start -->
      <linkerarg value="-Wl,--build-id" /> 
      <!-- linkerarg value="-Wl,- -no-warn-shared-textrel" / unrecognized option -->  
      <linkerarg value="-Wl,--fatal-warnings" />
      <linkerarg value="-nostdlib" />
      <linkerarg value="-nostdlib++" />
      <!-- from sdk cmake end -->

      <linkerarg value="-fno-use-linker-plugin" /> 

      <linkerarg value="-target" />
      <linkerarg value="${env.ANDROID_LLVM_TRIPLE}" /> <!-- aarch64-none-linux-android -->
      <!-- linkerarg value="-mabi=lp64" />
      <linkerarg value="-mlittle-endian" />
      <linkerarg value="-march=armv8-a" / -->
      <!-- linkerarg value="-mfloat-abi=softfp" / -->

      <linkerarg value="-Bdynamic" />
      <linkerarg value="-Wl,-dynamic-linker,/system/bin/linker" />
      <linkerarg value="-Wl,-z,nocopyreloc" />

      <linkerarg value="--no-undefined" />

      <!-- libset libs="c,m,dl,log" / -->
      <libset libs="c,m,dl" />
    </linker>

</target>

<target name="gluegen.cpptasks.declare.compiler" depends="setup.java.home.dir">
  <echo message="Custom forced Linux.x86 cross compile android" />
  <property name="compiler.cfg.id.base"          value="compiler.cfg.android" /> 
  <property name="linker.cfg.id.base"            value="linker.cfg.android" /> 
  <property name="java.includes.dir.platform"    value="${java.includes.dir}/x11" />
  <available property="java.lib.dir.platform"    value="${java.home.dir}/jre/lib/i386" 
                                                 file="${java.home.dir}/jre/lib/i386/libjava.so"/>
  <available property="java.lib.dir.platform"    value="${java.home.dir}/lib/i386"     
                                                 file="${java.home.dir}/lib/i386/libjava.so"/>
  <property name="java.lib.dir.platform"         value="${java.home.dir}/lib"/> <!-- new default -->
</target>

<target name="declare.linux.android">
  <echo message="android.${env.ANDROID_ABI}" />
  <property name="compiler.cfg.id"               value="compiler.cfg.android" />
  <property name="linker.cfg.id"                 value="linker.cfg.android" />
</target>

</project>