Looks like it's failing to build the native optimizer. Based on the log, it seems it can't even find a local compiler to run (but I'm not sure how that works on windows). A more common error is if the local compiler might not have sufficient c++11 support (but then I'd expect a clearer error, however, maybe on windows it's different?). You can disable the native optimizer with EMCC_NATIVE_OPTIMIZER=0 in the env, but then things will compile more slowly. To investigate more, you might want to look inside that js_optimizer.py file.
On Wed, Apr 6, 2016 at 10:36 AM, Nicolas Bourdis <[email protected]> wrote: > I am trying to compile some basic test code with emcc -O2, and for a > reason that I do not understand, the compilation fails at some point: > > D:\Projects\jsport>call emcc "../src/lib.cpp" -o emscripten_test-min.js > -O2 -s EXPORTED_FUNCTIONS="['_testFct']" -s RESERVED_FUNCTION_POINTERS=1 > WARNING:root:generating system asset: optimizer.exe... > Traceback (most recent call last): > File "D:\Program Files\Emscripten\emscripten\1.35.0\\emcc", line > 1602, in <module> > flush_js_optimizer_queue() > File "D:\Program Files\Emscripten\emscripten\1.35.0\\emcc", line > 1505, in flush_js_optimizer_queue > run_passes(chunks[0], title, just_split=False, just_concat=False) > File "D:\Program Files\Emscripten\emscripten\1.35.0\\emcc", line > 1478, in run_passes > final = shared.Building.js_optimizer(final, passes, debug_level >= > 4, js_optimizer_extra_info, just_split=just_split, just_concat=just_concat > ) > File "D:\Program Files\Emscripten\emscripten\1.35.0\tools\shared.py" > , line 1634, in js_optimizer > ret = js_optimizer.run(filename, passes, NODE_JS, debug, > extra_info, just_split, just_concat) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 538, in > run > return temp_files.run_and_clean(lambda: run_on_js(filename, passes > , js_engine, source_map, extra_info, just_split, just_concat)) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\tempfiles.py", line 64, in > run_and_clean > return func() > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 538, in > <lambda> > return temp_files.run_and_clean(lambda: run_on_js(filename, passes > , js_engine, source_map, extra_info, just_split, just_concat)) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 428, in > run_on_js > if not use_native(passes, source_map) or not get_native_optimizer > (): > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 182, in > get_native_optimizer > return get_optimizer('optimizer.exe', [], ignore_build_errors) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 166, in > get_optimizer > return shared.Cache.get(name, create_optimizer_cmake, extension= > 'exe') > File "D:\Program Files\Emscripten\emscripten\1.35.0\tools\cache.py", > line 41, in get > temp = creator() > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 117, in > create_optimizer_cmake > proc = subprocess.Popen(['cmake', '-G', cmake_generator, > '-DCMAKE_BUILD_TYPE='+cmake_build_type, shared.path_from_root('tools', > 'optimizer')], cwd=build_path, stdin=log_output, stdout=log_output, stderr > =log_output) > File "D:\Program > Files\Emscripten\python\2.7.5.3_64bit\lib\subprocess.py", line 711, in > __init__ > errread, errwrite) > File "D:\Program > Files\Emscripten\python\2.7.5.3_64bit\lib\subprocess.py", line 948, in > _execute_child > startupinfo) > > If I remove the O2 option, the exact same code compiles fine and can be > called from Javascript. > > Any idea how to fix this ? > > I am on Windows 7 and using Emscripten 1.35.0 installed from > emsdk-1.35.0-full-64bit.exe. > > > ---------------------------------------------------------------------------------- > > The code I am trying to compile: > > *Lib.h:* > > #ifndef LIB_H > #define LIB_H > > extern "C" { > > typedef void (*invoke_oncomplete_callback_t)(int, const char*, const > char*); > > void testFct(const void *arr_data_rgba, int arr_width, int arr_height, > int job_id, invoke_oncomplete_callback_t callback); > > } > > #endif //LIB_H > > *Lib.cpp:* > > #include <sstream> > #include "lib.h" > > // Internal C++ library functions > namespace impl { > > void testFct(const void *arr_data, int arr_width, int arr_height, int > job_id, invoke_oncomplete_callback_t callback) > { > // Call the callback with the result > std::stringstream ss; > ss << "Inversion done in " << 0 << "s"; > callback(job_id, "", ss.str().c_str()); > } > > } // namespace impl > > // Exposed C library function > void testFct(const void *arr_data, int arr_width, int arr_height, int > job_id, invoke_oncomplete_callback_t callback) > { > impl::testFct(arr_data, arr_width, arr_height, job_id, callback); > } > > > ---------------------------------------------------------------------------------- > > The output with EMCC_DEBUG=1: > > D:\Projects\jsport>set EMCC_DEBUG=1 > D:\Projects\jsport>call emcc "../src/lib.cpp" -o emscripten_test-min.js > -O2 -s EXPORTED_FUNCTIONS="['_testFct']" -s RESERVED_FUNCTION_POINTERS=1 > DEBUG:root:PYTHON not defined in C:\Users\MyUserName/.emscripten, > using "D:\Program Files\Emscripten\python\2.7.5.3_64bit\python.exe" > WARNING:root:invocation: D:\Program Files\Emscripten\emscripten\1.35.0 > \\emcc ../src/lib.cpp -o emscripten_test-min.js -O2 -s EXPORTED_FUNCTIONS > =['_testFct'] -s RESERVED_FUNCTION_POINTERS=1 (in D:\Projects\jsport) > INFO:root:(Emscripten: Running sanity checks) > DEBUG:root:compiling to bitcode > DEBUG:root:emcc step "parse arguments and setup" took 0.00 seconds > DEBUG:root:compiling source file: ../src/lib.cpp > DEBUG:root:running: D:\Program Files\Emscripten\clang\e1.35.0_64bit\ > clang++ -target asmjs-unknown-emscripten -D__EMSCRIPTEN_major__=1 - > D__EMSCRIPTEN_minor__=35 -D__EMSCRIPTEN_tiny__=0 -Werror=implicit-function > -declaration -nostdinc -Xclang -nobuiltininc -Xclang -nostdsysteminc - > Xclang -isystemD:\Program > Files\Emscripten\emscripten\1.35.0\system\local\include > -Xclang -isystemD:\Program Files\Emscripten\emscripten\1.35.0\system\ > include\compat -Xclang -isystemD:\Program Files\Emscripten\emscripten\1.35 > .0\system\include -Xclang -isystemD:\Program Files\Emscripten\emscripten\ > 1.35.0\system\include\emscripten -Xclang -isystemD:\Program Files\ > Emscripten\emscripten\1.35.0\system\include\libc -Xclang -isystemD:\ > Program > Files\Emscripten\emscripten\1.35.0\system\lib\libc\musl\arch\emscripten > -Xclang -isystemD:\Program Files\Emscripten\emscripten\1.35.0\system\ > include\libcxx -O2 -mllvm -disable-llvm-optzns -std=c++03 ../src/lib.cpp - > Xclang -isystemD:\Program Files\Emscripten\emscripten\1.35.0\system\ > include\SDL -emit-llvm -c -o C:\Users\MyUserName\AppData\Local\Temp\ > tmppmxhg5\lib_0.o > DEBUG:root:emcc step "bitcodeize inputs" took 0.61 seconds > DEBUG:root:optimizing ../src/lib.cpp > DEBUG:root:emcc: LLVM opts: -O3 -disable-loop-vectorization -disable- > slp-vectorization -vectorize-loops=false -vectorize-slp=false -vectorize- > slp-aggressive=false [num inputs: 1] > DEBUG:root:emcc step "process inputs" took 0.12 seconds > DEBUG:root:will generate JavaScript > DEBUG:root:including libcxx_noexcept.a > DEBUG:root:including libcxxabi.bc > DEBUG:root:including libc.bc > DEBUG:root:including dlmalloc.bc > DEBUG:root:emcc step "calculate system libraries" took 0.05 seconds > DEBUG:root:linking: [ > 'C:\\Users\\MyUserName\\AppData\\Local\\Temp\\tmppmxhg5\\lib_0_1.o', > 'C:\\Users\\MyUserName\\.emscripten_cache\\libcxxabi.bc', > 'C:\\Users\\MyUserName\\.emscripten_cache\\libc.bc', > 'C:\\Users\\MyUserName\\.emscripten_cache\\dlmalloc.bc', > 'C:\\Users\\MyUserName\\.emscripten_cache\\libcxx_noexcept.a'] > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > tmppmxhg5\lib_0_1.o to link > DEBUG:root:adding object C:\Users\MyUserName\.emscripten_cache\ > libcxxabi.bc to link > DEBUG:root:adding object C:\Users\MyUserName\.emscripten_cache\libc.bc > to link > DEBUG:root:adding object C:\Users\MyUserName\.emscripten_cache\ > dlmalloc.bc to link > DEBUG:root:considering archive C:\Users\MyUserName\.emscripten_cache\ > libcxx_noexcept.a > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\string_fb1646b4.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\ios_1da97a69.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\locale_528bea5a.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\memory_8c4a4594.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\system_error_7d190770.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\mutex_50c49967.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\condition_variable_1b9bbc16.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\stdexcept_e242ef16.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\thread_b13652bb.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\future_fce87bc4.cpp.o to link > DEBUG:root:adding object C:\Users\MyUserName\AppData\Local\Temp\ > emscripten_temp\tmprfwi8k\exception_f3e64688.cpp.o to link > DEBUG:root:done running loop of archive C:\Users\MyUserName\. > emscripten_cache\libcxx_noexcept.a > DEBUG:root:emcc step "link" took 0.81 seconds > DEBUG:root:saving intermediate processing steps to C:\Users\MyUserName > \AppData\Local\Temp\emscripten_temp > DEBUG:root:(not saving intermediate C:\Users\MyUserName\AppData\Local\ > Temp\emscripten_temp\emcc-0-basebc.bc because deferring linking) > DEBUG:root:emcc: LLVM opts: -strip-debug -disable-verify -internalize > -internalize-public-api-list=testFct,malloc,free,__errno_location,fflush, > __cxa_can_catch,__cxa_is_pointer_type -globaldce -pnacl-abi-simplify-preopt > -pnacl-abi-simplify-postopt -disable-loop-vectorization > -disable-slp-vectorization > -vectorize-loops=false -vectorize-slp=false -vectorize-slp-aggressive= > false [num inputs: 15] > DEBUG:root:emcc step "post-link" took 0.37 seconds > DEBUG:root:LLVM => JS > DEBUG:root:emscript: llvm backend: D:\Program Files\Emscripten\clang\ > e1.35.0_64bit\llc C:\Users\MyUserName\AppData\Local\Temp\tmppmxhg5\ > emscripten_test-min.bc -march=js -filetype=asm -o C:\Users\MyUserName\ > AppData\Local\Temp\emscripten_temp\tmp1zqxhc.4.js -emscripten-reserved- > function-pointers=1 -O2 > DEBUG:root: emscript: llvm backend took 0.236999988556 seconds > DEBUG:root:emscript: js compiler glue > DEBUG:root: emscript: glue took 0.319000005722 seconds > DEBUG:root:asm text sizes[[1463028, 17491], 5292, 200, 3702, 0, 5207, > 23191, 1086, 268, 2736, 2080] > DEBUG:root: emscript: final python processing took 0.00999999046326 > seconds > DEBUG:root:emcc step "emscript (llvm=>js)" took 0.60 seconds > DEBUG:root:wrote memory initialization to emscripten_test-min.js.mem > DEBUG:root:emcc step "source transforms" took 0.05 seconds > DEBUG:root:running js post-opts > DEBUG:root:applying js optimization passes: asm eliminate > simplifyExpressions simplifyIfs registerize minifyNames asmLastOpts last > minifyWhitespace cleanup > chunkification: num funcs: 707 actual num chunks: 3 chunk size range: > 522935 - 450885 > WARNING:root:generating system asset: optimizer.exe... > DEBUG:root:building native optimizer via CMake: optimizer.exe > Traceback (most recent call last): > File "D:\Program Files\Emscripten\emscripten\1.35.0\\emcc", line > 1602, in <module> > flush_js_optimizer_queue() > File "D:\Program Files\Emscripten\emscripten\1.35.0\\emcc", line > 1505, in flush_js_optimizer_queue > run_passes(chunks[0], title, just_split=False, just_concat=False) > File "D:\Program Files\Emscripten\emscripten\1.35.0\\emcc", line > 1478, in run_passes > final = shared.Building.js_optimizer(final, passes, debug_level >= > 4, js_optimizer_extra_info, just_split=just_split, just_concat=just_concat > ) > File "D:\Program Files\Emscripten\emscripten\1.35.0\tools\shared.py" > , line 1634, in js_optimizer > ret = js_optimizer.run(filename, passes, NODE_JS, debug, > extra_info, just_split, just_concat) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 538, in > run > return temp_files.run_and_clean(lambda: run_on_js(filename, passes > , js_engine, source_map, extra_info, just_split, just_concat)) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\tempfiles.py", line 64, in > run_and_clean > return func() > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 538, in > <lambda> > return temp_files.run_and_clean(lambda: run_on_js(filename, passes > , js_engine, source_map, extra_info, just_split, just_concat)) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 428, in > run_on_js > if not use_native(passes, source_map) or not get_native_optimizer > (): > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 182, in > get_native_optimizer > return get_optimizer('optimizer.exe', [], ignore_build_errors) > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 166, in > get_optimizer > return shared.Cache.get(name, create_optimizer_cmake, extension= > 'exe') > File "D:\Program Files\Emscripten\emscripten\1.35.0\tools\cache.py", > line 41, in get > temp = creator() > File "D:\Program > Files\Emscripten\emscripten\1.35.0\tools\js_optimizer.py", line 117, in > create_optimizer_cmake > proc = subprocess.Popen(['cmake', '-G', cmake_generator, > '-DCMAKE_BUILD_TYPE='+cmake_build_type, shared.path_from_root('tools', > 'optimizer')], cwd=build_path, stdin=log_output, stdout=log_output, stderr > =log_output) > File "D:\Program > Files\Emscripten\python\2.7.5.3_64bit\lib\subprocess.py", line 711, in > __init__ > errread, errwrite) > File "D:\Program > Files\Emscripten\python\2.7.5.3_64bit\lib\subprocess.py", line 948, in > _execute_child > startupinfo) > > > -- > You received this message because you are 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