My code has "-s: USE_PTHREADS" for both compile and link options. My CMake uses
this snippet:
if (TARGET_WASM)
add_compile_options("SHELL:-s USE_PTHREADS")
add_link_options("SHELL:-s USE_PTHREADS")
endif()
On Apr 8 2021, at 2:45 pm, 'Thomas Lively' via emscripten-discuss
<[email protected]> wrote:
>
> That's the link command, since Driver.o is one of the inputs. You need to
> pass -pthread at compile time, where Driver.o is created, as well.
>
>
>
>
> On Thu, Apr 8, 2021 at 1:26 PM Jasmeet Kaur <[email protected]
> (mailto:[email protected])> wrote:
>
>
> >
> >
> > I am using -pthread flag : (makefile)
> >
> >
> >
> > COMMON_LNFLAGS += -Lapps/libs -Ldemos/libs -L/usr/X11R6/lib64
> > -L/usr/X11R6/lib -pthread
> >
> >
> >
> >
> > and here is the compilation output :
> >
> >
> > emcc -o ../../../../html/debug/snakebird.js
> > ../../../../objs_html/snakebird.js/debug/apps/snakebird/Driver.o
> > -lenvironments -lmapalgorithms -lalgorithms -lgraphalgorithms -lgraph
> > -lutils -lguihtml -lgui -lSTUB -L../../../../html/debug -Lapps/libs
> > -Ldemos/libs -L/usr/X11R6/lib64 -L/usr/X11R6/lib -pthread -g -s
> > EXPORTED_FUNCTIONS="['_InitHOG', '_InitHOGArg', '_DoFrame', '_MouseEvent',
> > '_HitKey', '_SetCanvasSize']" -s EXTRA_EXPORTED_RUNTIME_METHODS=["cwrap"]
> >
> > Live child 0x5633c6243c40 (../../../../html/debug/snakebird.js) PID 22723
> >
> > wasm-ld: error: --shared-memory is disallowed by
> > ../../../../objs_html/snakebird.js/debug/apps/snakebird/Driver.o because it
> > was not compiled with 'atomics' or 'bulk-memory' features.
> >
> >
> >
> >
> >
> > Is this not correct?
> >
> >
> >
> >
> >
> > On Thursday, April 8, 2021 at 4:17:10 PM UTC-4 [email protected]
> > (mailto:[email protected]) wrote:
> >
> >
> > >
> > > The object file specified in the error message was not compiled with
> > > -pthread, so atomic operations and thread-local data (if any) in its
> > > source were transformed to non-atomic operations and non-thread-local
> > > data. That transformation makes it unsafe to link that object into
> > > multi-threaded programs, so wasm-ld fails with that error message. The
> > > fix is to use -pthread when compiling that object.
> > >
> > >
> > >
> > >
> > > On Thu, Apr 8, 2021 at 1:11 PM Jasmeet Kaur <[email protected]> wrote:
> > >
> > >
> > >
> > >
> > > >
> > > > Hi,
> > > >
> > > > I am trying to use emscripton for a project. When I compile, I get
> > > > this error :
> > > >
> > > > wasm-ld: error: --shared-memory is disallowed by .... because it was
> > > > not compiled with 'atomics' or 'bulk-memory' features.
> > > >
> > > >
> > > > Can someone point me as to how to resolve this? And also explain as to
> > > > why is this happening?
> > > >
> > > >
> > > >
> > > > Environment info;
> > > >
> > > >
> > > >
> > > > emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld)
> > > > 2.0.16
> > > >
> > > > clang version 13.0.0
> > > > (/b/s/w/ir/cache/git/chromium.googlesource.com-external-github.com-llvm-llvm--project
> > > > ad8010e598d9aa3747c34ce28aa2ba6de1650bd4)
> > > >
> > > > Target: wasm32-unknown-emscripten
> > > >
> > > > Thread model: posix
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Thank you!
> > > >
> > > >
> > >
> > >
> > > >
> > > > --
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> > > >
> > >
> > >
> >
> >
> >
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