Could this be another libcxx mismatch issue and 7.7 just exposes it incidentally?
On Thu, Sep 12, 2019 at 2:54 PM Darin Dimitrov <[email protected]> wrote: > I am cross compiling V8 for android and I have created a shared library > containing a simple function which adds some property to a provided object: > > extern "C" void MyFunc(Isolate* isolate, Local<Object>& obj) { > Local<Context> context = isolate->GetCurrentContext(); > obj->Set(context, v8::String::NewFromUtf8(isolate, > "someProp").ToLocalChecked(), Number::New(isolate, 500)); > } > > > My goal purpose is to call this function from my android application in > which I have embedded V8: > > > typedef void (*MyCallback)(Isolate* isolate, Local<Object>& obj); > > > void* handle = > dlopen("/data/data/com.tns.testapplication/files/app/modules/libCalc-x86_64.so", > RTLD_LAZY); > > MyCallback func = reinterpret_cast<MyCallback>(dlsym(handle, "MyFunc")); > Local<Object> exportsObj = Object::New(isolate); > func(isolate, exportsObj); > > > This successfully invokes "MyFunc" from the shared library and sets the > "someProp" property on the passed object. > > > Starting from V8 *7.7.299.11* calling obj->Set() inside the library crashes > with SIGSEGV and without any stacktrace. > > > I have noticed that if I set the property before calling the function then it > works: > > > exportsObj->Set(context, v8::String::NewFromUtf8(isolate, > "someProp").ToLocalChecked(), v8::Null(isolate)); > func(isolate, exportsObj); > > > Any idea what might have changed between the official V8 7.6 and 7.7 releases > that might explain this behaviour or any tips that would allow me to debug > this further? > > -- > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/v8-users/48a71b41-b96e-41ec-9450-fa36d6f1bb45%40googlegroups.com > <https://groups.google.com/d/msgid/v8-users/48a71b41-b96e-41ec-9450-fa36d6f1bb45%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/CAH3p7oN1B3HPc%2BVicC0-YB5R%2BXmsr5z5Zqi5%2BORhoZr3hY4F7A%40mail.gmail.com.
