Does it work if you remove --llvm-lto 1 during link? For checking if this is a regression, please try 1.38.45-upstream in comparison to 1.39.0-upstream (as the default backend changed there, so if not specifying the backend, older versions use the other one).
It would be good to get a testcase of this, if you can provide that. On Thu, Nov 7, 2019 at 8:37 AM 'John Harvey' via emscripten-discuss < [email protected]> wrote: > This is moving one of the items discussed in the 1.39.0 thread to its own > topic. > From 1.38.46-upstream when linking our largish library we get the > following error produced and this still happens with 1.39.2:- > > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc: > undefined symbol: __threwValue > wasm-ld: error: too many errors emitted, stopping now (use -error-limit=0 > to see all errors) > shared:ERROR: > 'd:/compilers/emscripten-1.39.2-upstream/upstream/bin\wasm-ld.exe > @d:\users\jpharvey\appdata\local\temp\emscripten_5umhgn.rsp' failed (1) > > The code is built & linked with a consistent set of compiler flags > > em++ --bind -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=1 -s FULL_ES2=1 > --memory-init-file 0 -s ERROR_ON_UNDEFINED_SYMBOLS=1 -s > DISABLE_EXCEPTION_CATCHING=0 -s EMBIND_STD_STRING_IS_UTF8=0 -s > AGGRESSIVE_VARIABLE_ELIMINATION=1 -s EVAL_CTORS=0 -s WASM_OBJECT_FILES=0 -s > WASM=1 -O3 -s ASSERTIONS=1 -s DEMANGLE_SUPPORT=1 -DNDEBUG=1 -s > DISABLE_EXCEPTION_CATCHING=0 --std=c++14 --llvm-lto 1 > > It links fine if i remove -s WASM_OBJECT_FILES=0 > It linked fine with -s WASM_OBJECT_FILES=0 using 1.38.45 > > __threwValue does appear to exist as a symbol in libcompiler_rt.bc > > \compilers\emscripten-1.39.2-upstream\upstream\bin\llvm-nm > d:\users\jpharvey\.emscripten_cache_1.39.2-upstream\wasm-bc\libcompiler_rt.bc > | grep -i threw > -------- D __THREW__ > -------- D __threwValue > -------- T setThrew > > Not sure how to debug this further. I guess it started when this code for > __threwValue was merged into libcompiler_rt instead of being in its own > file? > Any suggestions on how to help get to the bottom of this > > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" 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/emscripten-discuss/c5b797a2-a168-46dd-b40a-d5d91ddbdd3f%40googlegroups.com > <https://groups.google.com/d/msgid/emscripten-discuss/c5b797a2-a168-46dd-b40a-d5d91ddbdd3f%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. 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