For version 6.8, v8_snapshot should be built by default but it isn't . The
following configure solves the problem. Give it a try.
Edit file: " /out.gn/android.arm.release/args.gn"
'''
is_component_build = false
is_debug = false
symbol_level = 1
target_cpu = "arm"
target_os = "android"
use_goma = false
v8_android_log_stdout = true
v8_static_library = true
v8_use_external_startup_data = false
'''
Save and compile.
在 2018年8月20日星期一 UTC+8下午2:51:46，Coulson Chen写道：
>
> Yes, using libv8_snapshot.a instead of libv8_nosnapshot.a can work . I
> hava a another problem : building with v8 6.8 version can't generate
> snapshot library while 6.5 can generate, I using the same config and as the
> official wiki said, snapshot is built by default.
>
> 在 2018年8月17日星期五 UTC+8下午3:40:23，young louis写道：
>>
>> Well, there is no linker problem if v8_snapshot is used. Linker problem
>> for v8_nosnapshot only.
>>
>> As for the libs order, I used a combined library created by the
>> following commands bellow. Order had been adjusted. Not working.
>>
>>
>> ar -rcsD libv8_base.a ../v8_base/*.o
>>> ar -rcsD libv8_base.a ../v8_libplatform/*.o
>>> ar -rcsD libv8_base.a ../v8_libbase/*.o
>>> ar -rcsD libv8_base.a ../v8_libsampler/*.o
>>> ar -rcsD libv8_base.a ../src/inspector/inspector/*.o
>>
>>
>>
>> Zac Hansen <xax...@gmail.com> 于2018年8月16日周四 上午2:09写道：
>>
>>> you can always just throw all the libs at the linker twice, too, if
>>> you're not sure the order..
>>>
>>> On Wednesday, August 15, 2018 at 6:04:49 AM UTC-7, ibon wrote:
>>>>
>>>> I avoid linker problems by properly sorting the libraries.
>>>> The linker is sequential, and will fail if a given symbol is not
>>>> present by the time it is referenced, regardless it is in another to link
>>>> lib.
>>>>
>>>> This is a sort order that worked for me.
>>>> v8_base v8_libplatform v8_libbase v8_libsampler v8_snapshot
>>>> v8_inspector
>>>>
>>>> Other than that, I now make one single lib file will all v8 code in it.
>>>> Not only to avoid linker errors, but to make my life easier by
>>>> substantially reducing my mk file size.
>>>>
>>>> hope this helps.
>>>>
>>>>
>>>> El martes, 14 de agosto de 2018, 9:02:07 (UTC+2), young louis escribió:
>>>>>
>>>>> I have a similar problem when embeding V8 6.8 to android. An error
>>>>> is reported while linking libv8_nosnapshot.a, briefly
>>>>>
>>>>>
>>>>> *../../src/isolate.cc:0: error: undefined reference to 'vtable for
>>>>> v8::internal::SetupIsolateDelegate'*
>>>>>
>>>>> Can anyone help, please.
>>>>>
>>>>> 在 2018年4月13日星期五 UTC+8下午6:37:57，Coulson Chen写道：
>>>>>>
>>>>>> I build v8 static libraries for android successfully(using V8 6.5),
>>>>>> and then embed it in andoid app(using the hello-world.cc demo from
>>>>>> official
>>>>>> wiki. Android studio 3.1,Cmake),but error like the follow takes place
>>>>>> while building the APK
>>>>>> Build command failed.
>>>>>> Error while executing process
>>>>>> /usr/local/v8/v8/third_party/android_tools/sdk/cmake/3.6.4111459/bin/cmake
>>>>>>
>>>>>> with arguments {--build
>>>>>> /mnt/share/V8Wrapper/app/.externalNativeBuild/cmake/debug/armeabi-v7a
>>>>>> --target native-lib}
>>>>>> [1/2] Building CXX object
>>>>>> CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o
>>>>>> [2/2] Linking CXX shared library
>>>>>> ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libnative-lib.so
>>>>>> FAILED: : &&
>>>>>> /usr/local/v8/v8/third_party/android_ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++
>>>>>>
>>>>>> --target=armv7-none-linux-androideabi
>>>>>> --gcc-toolchain=/usr/local/v8/v8/third_party/android_ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64
>>>>>>
>>>>>> --sysroot=/usr/local/v8/v8/third_party/android_ndk/sysroot -fPIC
>>>>>> -isystem
>>>>>> /usr/local/v8/v8/third_party/android_ndk/sysroot/usr/include/arm-linux-androideabi
>>>>>>
>>>>>> -D__ANDROID_API__=16 -g -DANDROID -ffunction-sections -funwind-tables
>>>>>> -fstack-protector-strong -no-canonical-prefixes -march=armv7-a
>>>>>> -mfloat-abi=softfp -mfpu=vfpv3-d16 -fno-integrated-as -mthumb
>>>>>> -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -std=c++11
>>>>>> -frtti -fexceptions -O0 -fno-limit-debug-info
>>>>>> -Wl,--exclude-libs,libgcc.a
>>>>>> -Wl,--exclude-libs,libatomic.a --sysroot
>>>>>> /usr/local/v8/v8/third_party/android_ndk/platforms/android-16/arch-arm
>>>>>> -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings
>>>>>> -Wl,--fix-cortex-a8 -Wl,--exclude-libs,libunwind.a
>>>>>> -L/usr/local/v8/v8/third_party/android_ndk/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a
>>>>>>
>>>>>> -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro
>>>>>> -Wl,-z,now -shared -Wl,-soname,libnative-lib.so -o
>>>>>> ../../../../build/intermediates/cmake/debug/obj/armeabi-v7a/libnative-lib.so
>>>>>>
>>>>>> CMakeFiles/native-lib.dir/src/main/cpp/native-lib.cpp.o
>>>>>> /usr/local/v8/v8/third_party/android_ndk/platforms/android-16/arch-arm/usr/lib/liblog.so
>>>>>>
>>>>>> -landroid ../../../../src/main/cpp/armeabi-v7a/libv8_base.a
>>>>>> ../../../../src/main/cpp/armeabi-v7a/libv8_nosnapshot.a -latomic -lm
>>>>>> "/usr/local/v8/v8/third_party/android_ndk/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a/libc++.a"
>>>>>>
>>>>>> && :
>>>>>> ../../src/isolate.cc:0: error: undefined reference to 'vtable for
>>>>>> v8::internal::SetupIsolateDelegate'
>>>>>> /usr/local/v8/v8/third_party/android_ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/lib/gcc/arm-linux-androideabi/4.9.x/../../../../arm-linux-androideabi/bin/ld:
>>>>>>
>>>>>> the vtable symbol may be undefined because the class is missing its key
>>>>>> function
>>>>>> clang++: error: linker command failed with exit code 1 (use -v to see
>>>>>> invocation)
>>>>>> ninja: build stopped: subcommand failed.
>>>>>>
>>>>>> the key point is " 'vtable for
>>>>>> v8::internal::SetupIsolateDelegate'",is the libv8_base.a not correct?
>>>>>>
>>>>>> Any help is appreciated!
>>>>>>
>>>>> --
>>> --
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>>
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