ICU data file missing?

[Jane Chen]

Embedding v8 5.3.

This causes v8 to crash:

(88888888).toLocaleString();

2017-03-07 08:24:07.362 Critical: # Fatal error in , line 0
2017-03-07 08:24:07.362 Critical: # Failed to create ICU number format, are ICU data files missing?
2017-03-07 08:24:07.362 Critical: #
2017-03-07 08:24:07.362 Critical: 
2017-03-07 08:24:07.362 Critical: ==== C stack trace ===============================
2017-03-07 08:24:07.362 Critical: 
2017-03-07 08:24:07.362 Critical:  1: V8_Fatal
2017-03-07 08:24:07.362 Critical:  2: v8::internal::(anonymous namespace)::CreateICUNumberFormat(v8::internal::Isolate*, icu_56::Locale const&, v8::internal::Handle<v8::internal::JSObject>)
2017-03-07 08:24:07.362 Critical:  3: v8::internal::Runtime_CreateNumberFormat(int, v8::internal::Object**, v8::internal::Isolate*)
2017-03-07 08:24:07.362 Critical:  4: 0xcde49206147
2017-03-07 08:24:07.362 Critical:  5: 0xcde49270fcf
2017-03-07 08:24:07.362 Critical: Illegal instruction in thread 0x0000700016ed9000 addr 0x113aaf1d2

My compiled v8_shell executes the same script fine.

I've got icudtl.dat file under my LD_LIBRARY_PATH.  Is icudtl.dat the data file?  Or is there some other data file I need to include?  If it is the data file, where is the right place for it to be locatable by my executable?

Thanks!

[Ben Noordhuis]

Hi, Jane. Yes, icudtl.dat is the data file; icudtb.dat on big-endian
systems. Do you call V8::InitializeICU() or
V8::InitializeICUDefaultLocation() before V8::Initialize()?

[Vytautas Antanavicius]

[Jane Chen]

I used to do it without specifying the file path for icudtl.dat.  Now I realize it's required.  So passing in the file path fixed it.  

Thanks a lot!

[Gautham B A]

I'm trying to do the same with v8 5.9.211 on Windows and I have some problems.

I created a new Visual Studio 2015 project and added hello-world.cc as its source. I setup the include and lib directories in project configuration and it builds without any warnings/errors.

As suggested in the Getting Started with Embedding , I copied icudtl.dat, natives_blob.bin and snapshot_blob.bin to the directory where the executable resides. Screen shot - https://postimg.org/image/78agwcv2wb/

At runtime, it crashes at V8::InitializeICUDefaultLocation(argv[0]); - https://github.com/v8/v8/blob/5.9.211/samples/hello-world.cc#L16 Screenshot - https://postimg.org/image/4rmyjm700b/

Could you please help me?

Thanks,

--Gautham

[Ben Noordhuis]

On Mon, Oct 2, 2017 at 8:27 AM, Gautham B A <gautham....@gmail.com> wrote:
> I'm trying to do the same with v8 5.9.211 on Windows and I have some
> problems.
> I created a new Visual Studio 2015 project and added hello-world.cc as its
> source. I setup the include and lib directories in project configuration and
> it builds without any warnings/errors.
> As suggested in the Getting Started with Embedding , I copied icudtl.dat,
> natives_blob.bin and snapshot_blob.bin to the directory where the executable
> resides. Screen shot - https://postimg.org/image/78agwcv2wb/
>
> At runtime, it crashes at V8::InitializeICUDefaultLocation(argv[0]); -
> https://github.com/v8/v8/blob/5.9.211/samples/hello-world.cc#L16 Screenshot
> - https://postimg.org/image/4rmyjm700b/
>
> Could you please help me?
>
> Thanks,
> --Gautham

It depends on how V8 was built: it can be configured at compile time
to load the ICU data from either icudtl.dat or icudt.dll.

If you are unsure, set a breakpoint in
`v8::internal::InitializeICUDefaultLocation()` in src/icu_util.cc and
step through it.