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specific includes like asm/types.h
Also adapt make/lib/gluegen-cpptask-android* files:
- Set C++ stdlib = libstdc++
- Set isysroot (same as sysroot)
- Add isystem: *_SYSROOT1_INC, *_SYSROOT1_INC_ARCH and *_SYSROOT1_INC/c++/v1
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headers (compile)
Utilizing '-sysroot' with the linker, we require standard FS layout.
'~/Android/Sdk/ndk/20.1.5948944/platforms/android-24/arch-arm64'
contains the proper std FS layout for libraries under usr/lib,
but lacks the header files.
We call this 'ANDROID_TOOLCHAIN_SYSROOT0' and shall be used for linking.
'~/Android/Sdk/ndk/20.1.5948944/toolchains/llvm/prebuilt/linux-x86_64/sysroot'
native libraries are not under std FS layout,
but headers are under std FS layout for compilation under usr/include.
We call this 'ANDROID_TOOLCHAIN_SYSROOT1' and shall be used for compilation.
Identified while working on openal-soft Android compilation,
where we need to pass ANDROID_TOOLCHAIN_SYSROOT0
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make/lib/gluegen-cpptask-android-<abi>.xml and scripts
All aligned now
- gluegen-cpptasks-android-aarch64.xml
- gluegen-cpptasks-android-armv6.xml (this has ld flag --no-undefined disabled, due to internal missing symbols)
- gluegen-cpptasks-android-x86.xml
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2019-12-10 (GlueGen w/ android-aarch64 patched)
Default Platform: Android 7.0 Nougat, API level 24 supports Java 1.8
Reworked gluegen/make/scripts/setenv-android-tools.sh,
following canonical environment variables and sets all
required variables for cross-compilation.
See file's comments!
ant files:
- android.version -> android.api.level (default 24)
- android.jar defaults to ${gluegen.root}/make/lib/android-sdk/24/android.jar (provided)
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make/lib/gluegen-cpptasks-*
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TARGET_PLATFORM_USRLIBS for crosscompilation
Android Crosscompilation Usage:
- TARGET_PLATFORM_ROOT -> TARGET_PLATFORM_SYSROOT
General
- TARGET_PLATFORM_SYSROOT Crosscompiler and system specified 'sysroot' (as in gcc --print-sysroot)
- TARGET_PLATFORM_USRROOT Additional optional user headers and libraries for target
- TARGET_PLATFORM_USRLIBS Actual location of target user libraries within TARGET_PLATFORM_USRROOT
- TARGET_JAVA_LIBS Actual location of the Java libraries within TARGET_PLATFORM_USRROOT
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Linking libstdc++ dynamically might cause issues on platforms
where a huge variation of named library exists - or none even is installed.
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java.includes.dir.platform)
Patch custom make/lib/gluegen-cpptasks-<OS>-<ARCH>.xml
to match using GlueGen's JNI header.
Remove 'ignored override' defs of 'java.includes.dir.platform'
in build.xml.
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properties are tested whether they are set, rarely by value
isAndroidARMv6
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Android compilerflags
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- Add AArch64 detection via
- Elf Parser
- Android properties
- Java properties
- Android: Validate CPUType.Family _and_ ABIType
- MachineDescription
- Remove redundant Type ID and its field
- Reuse X86_64_UNIX for AArch64 (static config)
New ARCH 'aarch64' for
ant: <os arch>
armv8a
aarch64
New CPUType.ARM64 (ARM):
java: os.arch
aarch64
arm64
New CPUType.ARMv8_A (ARM):
java: os.arch
armv8-a
arm64-v8a
New ABIType:
EABI_AARCH64
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