Please file a bug at crbug.com/v8/new. I see the same behavior locally on
current ToT. The exception is due to the stack pointer not being 16-byte
aligned. At a quick glance it does seem lite-mode related (I can't repro
with --jitless for example).

On Thu, Aug 29, 2019 at 9:21 AM Sarath Singapati <[email protected]>
wrote:

> Hi,
>
> I am trying to build v8 for Android,  with "v8_enable_lite_mode=true" build
> flag.
>
> Some other build flags used:
> target_os="android" target_cpu="arm64" is_component_build=false
> v8_monolithic=true v8_use_snapshot=true v8_use_external_startup_data=false
>
> Build fails:
> [7/16] ACTION
> //:run_mksnapshot_default(//build/toolchain/android:android_clang_arm64)
>
> *FAILED: gen/embedded.S gen/snapshot.cc python
> ../../../../third-party/v8/tools/run.py* ./clang_x64_v8_arm64/mksnapshot
> --turbo_instruction_scheduling --target_os=android --embedded_src
> gen/embedded.S --embedded_variant Default --random-seed 314159265
> --startup_src gen/snapshot.cc --no-native-code-counters
>
> #
> # Fatal error in , line 0
> # *ALIGNMENT EXCEPTION*
> #
> #
> #
> #FailureMessage Object: 0x7fff67badc40
> ==== C stack trace ===============================
>
>
> ./clang_x64_v8_arm64/mksnapshot(v8::base::debug::StackTrace::StackTrace()+0x13)
> [0x7ff7ab0dbf03]
>     ./clang_x64_v8_arm64/mksnapshot(+0x155d49b) [0x7ff7ab0db49b]
>     ./clang_x64_v8_arm64/mksnapshot(V8_Fatal(char const*, int, char
> const*, ...)+0x148) [0x7ff7ab0d5f08]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Simulator::LoadStoreHelper(v8::internal::Instruction*,
> long, v8::internal::AddrMode)+0xbe5) [0x7ff7aa7b25c5]
>     ./clang_x64_v8_arm64/mksnapshot(v8::internal::Simulator::Run()+0x75)
> [0x7ff7aa7ac975]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Simulator::CallImpl(unsigned
> long, v8::internal::Simulator::CallArgument*)+0x4c1) [0x7ff7aa7ac071]
>     ./clang_x64_v8_arm64/mksnapshot(+0x7e29ab) [0x7ff7aa3609ab]
>     ./clang_x64_v8_arm64/mksnapshot(+0x7e2d85) [0x7ff7aa360d85]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Execution::TryCall(v8::internal::Isolate*,
> v8::internal::Handle<v8::internal::Object>,
> v8::internal::Handle<v8::internal::Object>, int,
> v8::internal::Handle<v8::internal::Object>*,
> v8::internal::Execution::MessageHandling,
> v8::internal::MaybeHandle<v8::internal::Object>*)+0xd2) [0x7ff7aa360d02]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Bootstrapper::CompileNative(v8::internal::Isolate*,
> v8::internal::Vector<char const>,
> v8::internal::Handle<v8::internal::String>, int,
> v8::internal::Handle<v8::internal::Object>*,
> v8::internal::NativesFlag)+0x122) [0x7ff7aa296a92]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Bootstrapper::CompileExtraBuiltin(v8::internal::Isolate*,
> int)+0x19d) [0x7ff7aa29692d]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Genesis::InstallExtraNatives()+0x12b)
> [0x7ff7aa299f8b]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Genesis::Genesis(v8::internal::Isolate*,
> v8::internal::MaybeHandle<v8::internal::JSGlobalProxy>,
> v8::Local<v8::ObjectTemplate>, unsigned long,
> v8::DeserializeInternalFieldsCallback, v8::MicrotaskQueue*)+0x590)
> [0x7ff7aa29b7e0]
>
> ./clang_x64_v8_arm64/mksnapshot(v8::internal::Bootstrapper::CreateEnvironment(v8::internal::MaybeHandle<v8::internal::JSGlobalProxy>,
> v8::Local<v8::ObjectTemplate>, v8::ExtensionConfiguration*, unsigned long,
> v8::DeserializeInternalFieldsCallback, v8::MicrotaskQueue*)+0x4d)
> [0x7ff7aa284e3d]
>     ./clang_x64_v8_arm64/mksnapshot(v8::NewContext(v8::Isolate*,
> v8::ExtensionConfiguration*, v8::MaybeLocal<v8::ObjectTemplate>,
> v8::MaybeLocal<v8::Value>, unsigned long,
> v8::DeserializeInternalFieldsCallback, v8::MicrotaskQueue*)+0x691)
> [0x7ff7aa236af1]
>     ./clang_x64_v8_arm64/mksnapshot(v8::Context::New(v8::Isolate*,
> v8::ExtensionConfiguration*, v8::MaybeLocal<v8::ObjectTemplate>,
> v8::MaybeLocal<v8::Value>, v8::DeserializeInternalFieldsCallback,
> v8::MicrotaskQueue*)+0x27) [0x7ff7aa236f67]
>     ./clang_x64_v8_arm64/mksnapshot(main+0x296) [0x7ff7aa20e206]
>     /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)
> [0x7ff7a8c6ff45]
>     ./clang_x64_v8_arm64/mksnapshot(_start+0x2a) [0x7ff7aa20d02a]
> ninja: build stopped: subcommand failed.
>
>
> Any ideas please?
> Thanks
>
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