Thanks for your reply! No, I'm not using -flat_namespace anywhere (and the default is afaik -twolevel_namespace). I Tried linking to V8 statically, and with 7.8 non-monolith static libs it worked, but I tried again with 7.2 monolithic and it calls into libNode.dylib and crashes. I'll try 7.2 with non-monolithic build but even if it works it seems very unstable.
Is electron built perhaps with flat_namespace? I'm using an old version (1.8, its 2.5 years old). I'm running out of ideas on how to work around this... 2019. november 22., péntek 3:18:13 UTC+1 időpontban Ben Noordhuis a következőt írta: > > On Thu, Nov 21, 2019 at 6:10 PM Zoltan B <zben...@gmail.com <javascript:>> > wrote: > > > > Hi! > > > > I'm running an electron app, that loads native application (using ffi) > that renders content into a canvas in electron. This native C++ code has an > embedded V8 inside it. > > I'm compiling V8 into dynamic libraries (.dylib files) > (use_component_build is set to true). > > > > My issue is that the V8 inside Electron seems to clash with my V8 > instance (they are not the same version), but only on macOS. > > If you look at the call-stack below of the segmentation fault, you can > see that it begins in libv8.dylib, but ends up somehow in libnode.dylib > which I can't really explain. > > > > Thread 16 Crashed: > > 0 libnode.dylib 0x0000000108306911 0x107c70000 + 6908177 > > 1 libnode.dylib 0x000000010830609c void > v8::internal::LookupIterator::Start<false>() + 60 > > 2 libv8.dylib 0x0000000118bbc354 > v8::internal::JSObject::SetOwnPropertyIgnoreAttributes(v8::internal::Handle<v8::internal::JSObject>, > > v8::internal::Handle<v8::internal::Name>, > v8::internal::Handle<v8::internal::Object>, > v8::internal::PropertyAttributes) + 164 (js-objects.cc:3148) > > 3 libv8.dylib 0x0000000118a9bc06 > v8::internal::Genesis::GetThrowTypeErrorIntrinsic() + 118 (handles.h:144) > > 4 libv8.dylib 0x0000000118a9c13d > v8::internal::Genesis::AddRestrictedFunctionProperties(v8::internal::Handle<v8::internal::JSFunction>) > > + 29 (bootstrapper.cc:1109) > > 5 libv8.dylib 0x0000000118ab1de5 > v8::internal::Genesis::Genesis(v8::internal::Isolate*, > v8::internal::MaybeHandle<v8::internal::JSGlobalProxy>, > v8::Local<v8::ObjectTemplate>, unsigned long, > v8::DeserializeInternalFieldsCallback, v8::MicrotaskQueue*) + 1269 > (bootstrapper.cc:5446) > > 6 libv8.dylib 0x0000000118a9b209 > v8::internal::Bootstrapper::CreateEnvironment(v8::internal::MaybeHandle<v8::internal::JSGlobalProxy>, > > v8::Local<v8::ObjectTemplate>, v8::ExtensionConfiguration*, unsigned long, > v8::DeserializeInternalFieldsCallback, v8::MicrotaskQueue*) + 89 > (bootstrapper.cc:5374) > > 7 libv8.dylib 0x00000001188862aa v8::NewContext(v8::Isolate*, > v8::ExtensionConfiguration*, v8::MaybeLocal<v8::ObjectTemplate>, > v8::MaybeLocal<v8::Value>, unsigned long, > v8::DeserializeInternalFieldsCallback, v8::MicrotaskQueue*) + 1722 > (api.cc:5697) > > 8 libv8.dylib 0x00000001188866fa v8::Context::New(v8::Isolate*, > v8::ExtensionConfiguration*, v8::MaybeLocal<v8::ObjectTemplate>, > v8::MaybeLocal<v8::Value>, v8::DeserializeInternalFieldsCallback, > v8::MicrotaskQueue*) + 42 (api.cc:5856) > > > > > > > > Is it possible that when libv8.dylib loads the subsequent .dylib files > with dlopen() (such as libv8_platform.dylib etc.) that dlopen somehow > fetches the V8 symbols inside the libnode.dylib? > > > > Electron version I'm using: 1.8.8 > > V8 versions I'm using in my app: 7.2 (I tried it with 7.8 too but with > the same results) > > > > Could anyone help me out how to avoid this? > > Since you're only seeing this on macOS: is anything linked with > -flat_namespace? > -- -- v8-users mailing list v8-users@googlegroups.com 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 v8-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/v8-users/d4e8c529-4baf-4602-a763-6892eaa04c05%40googlegroups.com.
