硬件平臺：RK3288
android版本：5.1
1、編譯遇到如下錯誤：
libnativehelper/JniInvocation.cpp:45: error: unsupported reloc 43
libnativehelper/JniInvocation.cpp:165: error: unsupported reloc 43
libnativehelper/JniInvocation.cpp:165: error: unsupported reloc 43
libnativehelper/JniInvocation.cpp:165: error: unsupported reloc 43
libnativehelper/JniInvocation.cpp:165: error: unsupported reloc 43
clang: error: linker command failed with exit code 1 (use -v to see invocation)
host C++: libc++ <= external/libcxx/src/algorithm.cpp
host C++: libc++ <= external/libcxx/src/bind.cpp
build/core/host_shared_library_internal.mk:44: recipe for target 'out/host/linux-x86/obj32/lib/libnativehelper.so' failed
make: *** [out/host/linux-x86/obj32/lib/libnativehelper.so] Error 1
make: *** 正在等待未完成的任務....這個問題其實在編譯6.0時已經遇到過了，只是版本略有不同，解決辦法如下：
cp /usr/bin/ld.gold <source_android>/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6/x86_64-linux/bin/ld 參考：http://blog.csdn.net/u014770862/article/details/52624851
2、錯誤如下：
File "../base/android/jni_generator/jni_generator.py", line 1527, in <module>
sys.exit(main(sys.argv))
File "../base/android/jni_generator/jni_generator.py", line 1518, in main
GenerateJNIHeader(input_file, output_file, options)
File "../base/android/jni_generator/jni_generator.py", line 1401, in GenerateJNIHeader
jni_from_javap = JNIFromJavaP.CreateFromClass(input_file, options)
File "../base/android/jni_generator/jni_generator.py", line 652, in CreateFromClass
jni_from_javap = JNIFromJavaP(stdout.split('\n'), options)
File "../base/android/jni_generator/jni_generator.py", line 600, in __init__
signature=JniParams.ParseJavaPSignature(contents[lineno + 1]))]
File "../base/android/jni_generator/jni_generator.py", line 212, in ParseJavaPSignature
return '"%s"' % signature_line[signature_line.index(prefix) + len(prefix):]
ValueError: substring not found
external/chromium_org/content/java_set_jni_headers.target.linux-arm.mk:24: recipe for target 'out/target/product/rk3288/obj/GYP/shared_intermediates/content/jni/HashSet_jni.h' failed
make: *** [out/target/product/rk3288/obj/GYP/shared_intermediates/content/jni/HashSet_jni.h] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
File "../base/android/jni_generator/jni_generator.py", line 1527, in <module>
sys.exit(main(sys.argv))
File "../base/android/jni_generator/jni_generator.py", line 1518, in main
GenerateJNIHeader(input_file, output_file, options)
File "../base/android/jni_generator/jni_generator.py", line 1401, in GenerateJNIHeader
jni_from_javap = JNIFromJavaP.CreateFromClass(input_file, options)
File "../base/android/jni_generator/jni_generator.py", line 652, in CreateFromClass
jni_from_javap = JNIFromJavaP(stdout.split('\n'), options)
File "../base/android/jni_generator/jni_generator.py", line 600, in __init__
signature=JniParams.ParseJavaPSignature(contents[lineno + 1]))]
File "../base/android/jni_generator/jni_generator.py", line 212, in ParseJavaPSignature
return '"%s"' % signature_line[signature_line.index(prefix) + len(prefix):]
ValueError: substring not found
external/chromium_org/content/motionevent_jni_headers.target.linux-arm.mk:24: recipe for target 'out/target/product/rk3288/obj/GYP/shared_intermediates/content/jni/MotionEvent_jni.h' failed
make: *** [out/target/product/rk3288/obj/GYP/shared_intermediates/content/jni/MotionEvent_jni.h] Error 1這是因爲我的電腦同時安裝了jdk1.7和jdk1.8，而切換java版本的時候沒有切換javap，javap是JDK自帶的反彙編器，
使用如下命令切換即可：
sudo update-alternatives --config javap參考：http://blog.csdn.net/ameyume/article/details/28855723/