Of note, the sample utilities "d8" and "v8_hello_world" build fine, and they don't get this same linker error. I can't see anything I'm doing differently, however.
On Sunday, 3 November 2019 22:08:27 UTC+10:30, Ben Ernst wrote: > > Thanks Jakob, is there by any chance a correpsonding buildbot for Windows > and MSVC++? I get this linker error from it seems V8 7.2 onwards, although > I'm focussing on 7.8. The "monolith" build seems to be working though. I > wonder if it's an MSVC++ peculiarity that is tripping me up? > Regards, > Ben > > On Saturday, 2 November 2019 02:17:38 UTC+10:30, Jakob Kummerow wrote: >> >> Yes, the component build is expected to work for every version, and our >> buildbot thinks it does: >> https://ci.chromium.org/p/v8/builders/ci/V8%20Linux64%20-%20shared >> >> The component build is also the default in Debug mode, which most V8 >> developers compile/use every day. >> >> >> On Fri, Nov 1, 2019 at 1:00 AM Ben Ernst <boi...@gmail.com> wrote: >> >>> Is the idea of a "component build", where you specify >>> "is_component_build=true" in the arguments to GN, actually supposed to work >>> at all in V8 (v7.8)? >>> >>> In particular, I am getting this unresolved external symbol: >>> >>> 1>ezv8_platform.obj : error LNK2019: unresolved external symbol >>> "__declspec(dllimport) class std::unique_ptr<class v8::Platform,struct >>> std::default_delete<class v8::Platform> > __cdecl >>> v8::platform::NewDefaultPlatform(int,enum >>> v8::platform::IdleTaskSupport,enum >>> v8::platform::InProcessStackDumping,class std::unique_ptr<class >>> v8::TracingController,struct std::default_delete<class >>> v8::TracingController> >)" >>> (__imp_?NewDefaultPlatform@platform@v8@@YA?AV?$unique_ptr@VPlatform@v8@@U?$default_delete@VPlatform@v8@@@std@@@std@@HW4IdleTaskSupport@12@W4InProcessStackDumping@12@V?$unique_ptr@VTracingController@v8@@U?$default_delete@VTracingController@v8@@@std@@@4@@Z) >>> >>> referenced in function "public: __cdecl ezv8::Platform::Impl::Impl(void)" >>> (??0Impl@Platform@ezv8@@QEAA@XZ) >>> >>> The function "NewDefaultPlatform" seems to be exported from >>> v8_libplatform. >>> >>> V8_PLATFORM_EXPORT std::unique_ptr<v8::Platform> NewDefaultPlatform( >>> int thread_pool_size = 0, >>> IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled, >>> InProcessStackDumping in_process_stack_dumping = >>> InProcessStackDumping::kDisabled, >>> std::unique_ptr<v8::TracingController> tracing_controller = {}); >>> >>> But the destructor of the base class, v8::Platform is not exported. >>> >>> /** >>> * V8 Platform abstraction layer. >>> * >>> * The embedder has to provide an implementation of this interface before >>> * initializing the rest of V8. >>> */ >>> class Platform { >>> public: >>> virtual ~Platform() = default; >>> >>> >>> I think that's the cause of the error above, although I may have >>> misinterpreted the error message. >>> >>> Am I barking up the wrong tree by trying to use the component build at >>> all? >>> >>> Thanks in advance for any advice. >>> >>> >>> >>> -- -- 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/e78c6991-e961-41ba-bfc8-db9882f2ddc6%40googlegroups.com.
