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path: root/make/lib/gluegen-cpptasks-android-aarch64.xml
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<?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="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="gcc">
      <compilerarg value="--sysroot=${env.TARGET_PLATFORM_ROOT}" />
      <!-- The default search dirs for 'gcc from $NDK_TOOLCHAIN_ROOT/$TARGET_TRIPLE/bin will not find
        subprograms properly (see gcc -print-search-dirs). Not sure if this is a bug in the NDK
        or not. Need to explicitly indicate where subprograms are with -B.
        NOTE: This is not necessary if using '$TARGET_TRIPLE-gcc' from $NDK_TOOLCHAIN_ROOT/bin. -->
      <compilerarg value="-B${env.NDK_TOOLCHAIN_ROOT}/libexec/gcc/${env.TARGET_TRIPLE}/${env.GCC_VERSION}" />

      <compilerarg value="-fpic" /> 
      <!-- compilerarg value="-fPIE" / -->  <!-- not for shared libs, won't produce symbols -->
      <!-- compilerarg value="-pie" / -->   <!-- not for shared libs, won't produce symbols -->
      <compilerarg value="-ffunction-sections" />
      <compilerarg value="-funwind-tables" />
      <compilerarg value="-fstack-protector" />
      <!-- compilerarg value="-no-canonical-prefixes" / --> <!-- will disallow creating shared library -->
      <compilerarg value="-Wa,--noexecstack" /> 


      <!-- compilerarg value="-mabi=lp64" />
      <compilerarg value="-mlittle-endian" />
      <compilerarg value="-march=armv8-a" / -->
      <!-- compilerarg value="-mfloat-abi=softfp" / -->

      <!-- Generic ARM Flags -->
      <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="-fstrict-aliasing"    unless="c.compiler.use-debug"/> 
      <compilerarg value="-funswitch-loops"     unless="c.compiler.use-debug"/> 
      <compilerarg value="-finline-limit=300"   unless="c.compiler.use-debug"/> 

      <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" /> 
      <compilerarg value="-fno-strict-aliasing"    if="c.compiler.use-debug" /> 

      <includepath path="${env.NDK_TOOLCHAIN_ROOT}/lib/gcc/${env.TARGET_TRIPLE}/${env.GCC_VERSION}/include" /> <!-- for stdarg.h -->
      <defineset>
        <define name="__unix__" />
        <!-- define name="__ARM_ARCH_5__" />
        <define name="__ARM_ARCH_5T__" />
        <define name="__ARM_ARCH_5E__" />
        <define name="__ARM_ARCH_5TE__" / -->
        <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="gcc">
         <linkerarg value="--sysroot=${env.TARGET_PLATFORM_ROOT}" />

         <linkerarg value="-fpic" /> 
         <!-- linkerarg value="-fPIE" / --> <!-- not for shared libs, won't produce symbols -->
         <!-- linkerarg value="-pie" / -->  <!-- not for shared libs, won't produce symbols -->
         <!-- linkerarg value="-no-canonical-prefixes" / --> <!-- will disallow creating shared library -->

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

         <!-- linkerarg value="-mabi=lp64" />
         <linkerarg value="-mlittle-endian" />
         <linkerarg value="-march=armv8-a" / -->
         <!-- linkerarg value="-mfloat-abi=softfp" / -->

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

         <linkerarg value="--demangle" /> 
         <linkerarg value="--gc-sections" /> 
         <linkerarg value="--no-undefined" /> 
         <linkerarg value="-static-libgcc"/>
         <!-- The gcc from $NDK_TOOLCHAIN_ROOT/$TARGET_TRIPLE/bin needs to be told
           where to find libgcc as the default location (gcc -print-search-dirs)
           is not correct. Not sure if this is a bug in the NDK or not. We also
           enforce that libgcc is linked after source files but before other shared
           libraries. -->
         <libset dir="${env.NDK_TOOLCHAIN_ROOT}/lib/gcc/${env.TARGET_TRIPLE}/${env.GCC_VERSION}" libs="gcc" />
         <!-- 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.lib.dir.platform"         value="${java.home.dir}/jre/lib/i386" />
  <property name="java.includes.dir.platform"    value="${java.includes.dir}/x11" />
</target>

<target name="declare.linux.android">
      <echo message="android.arm" />
      <property name="compiler.cfg.id"                      value="compiler.cfg.android" />
      <property name="linker.cfg.id"                        value="linker.cfg.android" />
</target>

</project>