em++ sometimes cannot generate .js files #19462

vhexl · 2023-05-27T12:40:47Z

vhexl
May 27, 2023

Hi Emscripten users,

I'm working in a development container based on the emscripten/emsdk:latest image, when I run emmake make, em++ sometimes fails to generate .js files, I'm a beginner and I don't understand why.

failed output

make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_yrel8ko1/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_yrel8ko1/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_yrel8ko1/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmpiu3o_573libemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmp45a1ei7o.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers
/emsdk/upstream/bin/llvm-objcopy: error: '/workspaces/Emcc/main.wasm': No such file or directory
em++: error: '/emsdk/upstream/bin/llvm-objcopy /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers' failed (returned 1)
make: *** [Makefile:6: build] Error 1
emmake: error: 'make' failed (returned 2)

successful output

make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_l1asv122/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_l1asv122/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_l1asv122/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmp4t3nvffilibemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmpwhgrbzqi.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers

I try to run emmake make

Setting up EMSDK environment (suppress these messages with EMSDK_QUIET=1)
Adding directories to PATH:
PATH += /emsdk/node/15.14.0_64bit/bin

Setting environment variables:
PATH = /emsdk/node/15.14.0_64bit/bin:/emsdk:/emsdk/upstream/emscripten:/vscode/vscode-server/bin/linux-x64/b3e4e68a0bc097f0ae7907b217c1119af9e03435/bin/remote-cli:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
root@051de5774b0d:/workspaces/Emcc# emmake make                        
make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_8h9n6lgg/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_8h9n6lgg/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_8h9n6lgg/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmp8bxwh1vslibemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmpwl06vnai.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers
/emsdk/upstream/bin/llvm-objcopy: error: '/workspaces/Emcc/main.wasm': No such file or directory
em++: error: '/emsdk/upstream/bin/llvm-objcopy /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers' failed (returned 1)
make: *** [Makefile:6: build] Error 1
emmake: error: 'make' failed (returned 2)
root@051de5774b0d:/workspaces/Emcc# emmake make
make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_b6v1mnmb/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_b6v1mnmb/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_b6v1mnmb/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmp67d8g02ylibemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmp48htq4c1.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers
root@051de5774b0d:/workspaces/Emcc# emmake make
make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_1dqbzojx/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_1dqbzojx/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_1dqbzojx/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmpli28vubelibemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmppz31kfoc.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers
root@051de5774b0d:/workspaces/Emcc# emmake make
make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_bo4k53ud/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_bo4k53ud/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_bo4k53ud/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmpvikl8xtblibemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmpsfie_d88.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers
/emsdk/upstream/bin/llvm-objcopy: error: '/workspaces/Emcc/main.wasm': No such file or directory
em++: error: '/emsdk/upstream/bin/llvm-objcopy /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers' failed (returned 1)
make: *** [Makefile:6: build] Error 1
emmake: error: 'make' failed (returned 2)
root@051de5774b0d:/workspaces/Emcc# emmake make
make: make
sudo /emsdk/upstream/emscripten/em++  /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o \
          /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o \
          /workspaces/Emcc/main.cpp \
          -I /workspaces/Emcc/lsp-dsp-lib/include/ \
          -o /workspaces/Emcc/main.js \
          -v
 "/emsdk/upstream/bin/clang" --version
 "/emsdk/upstream/bin/clang++" -target wasm32-unknown-emscripten -fignore-exceptions -fvisibility=default -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -DEMSCRIPTEN --sysroot=/emsdk/upstream/emscripten/cache/sysroot -Xclang -iwithsysroot/include/fakesdl -Xclang -iwithsysroot/include/compat -I/workspaces/Emcc/lsp-dsp-lib/include/ -v /workspaces/Emcc/main.cpp -c -o /tmp/emscripten_temp_ek97txdp/main_0.o
clang version 17.0.0 (https://github.com/llvm/llvm-project c672c3fe05adbb590abc99da39143b55ad510538)
Target: wasm32-unknown-emscripten
Thread model: posix
InstalledDir: /emsdk/upstream/bin
 (in-process)
 "/emsdk/upstream/bin/clang-17" -cc1 -triple wasm32-unknown-emscripten -emit-obj -mrelax-all -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.cpp -mrelocation-model static -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/workspaces/Emcc -resource-dir /emsdk/upstream/lib/clang/17 -D EMSCRIPTEN -I /workspaces/Emcc/lsp-dsp-lib/include/ -isysroot /emsdk/upstream/emscripten/cache/sysroot -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1 -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1 -internal-isystem /emsdk/upstream/lib/clang/17/include -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten -internal-isystem /emsdk/upstream/emscripten/cache/sysroot/include -fdeprecated-macro -fdebug-compilation-dir=/workspaces/Emcc -ferror-limit 19 -fvisibility=default -fgnuc-version=4.2.1 -fcxx-exceptions -fignore-exceptions -fexceptions -fcolor-diagnostics -iwithsysroot/include/fakesdl -iwithsysroot/include/compat -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr -o /tmp/emscripten_temp_ek97txdp/main_0.o -x c++ /workspaces/Emcc/main.cpp
clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten/c++/v1"
ignoring nonexistent directory "/emsdk/upstream/emscripten/cache/sysroot/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
 /workspaces/Emcc/lsp-dsp-lib/include
 /emsdk/upstream/emscripten/cache/sysroot/include/fakesdl
 /emsdk/upstream/emscripten/cache/sysroot/include/compat
 /emsdk/upstream/emscripten/cache/sysroot/include/c++/v1
 /emsdk/upstream/lib/clang/17/include
 /emsdk/upstream/emscripten/cache/sysroot/include
End of search list.
 "/emsdk/upstream/bin/wasm-ld" -o /workspaces/Emcc/main.wasm /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-dsp-lib/lsp-dsp-lib.o /workspaces/Emcc/lsp-dsp-lib/.build/target/lsp-common-lib/lsp-common-lib.o /tmp/emscripten_temp_ek97txdp/main_0.o -L/emsdk/upstream/emscripten/cache/sysroot/lib/wasm32-emscripten -lGL -lal -lhtml5 -lstubs-debug -lnoexit -lc-debug -ldlmalloc -lcompiler_rt -lc++-noexcept -lc++abi-debug-noexcept -lsockets -mllvm -combiner-global-alias-analysis=false -mllvm -enable-emscripten-sjlj -mllvm -disable-lsr /tmp/tmp9g5dt9zolibemscripten_js_symbols.so --strip-debug --export-if-defined=main --export-if-defined=__start_em_asm --export-if-defined=__stop_em_asm --export-if-defined=__start_em_lib_deps --export-if-defined=__stop_em_lib_deps --export-if-defined=__start_em_js --export-if-defined=__stop_em_js --export-if-defined=__main_argc_argv --export-if-defined=fflush --export=emscripten_stack_get_end --export=emscripten_stack_get_free --export=emscripten_stack_get_base --export=emscripten_stack_get_current --export=emscripten_stack_init --export=stackSave --export=stackRestore --export=stackAlloc --export=__errno_location --export=__get_temp_ret --export=__set_temp_ret --export=__wasm_call_ctors --export-table -z stack-size=65536 --initial-memory=16777216 --no-entry --max-memory=16777216 --stack-first
 "/emsdk/upstream/bin/wasm-emscripten-finalize" --dyncalls-i64 --pass-arg=legalize-js-interface-exported-helpers /workspaces/Emcc/main.wasm -o /workspaces/Emcc/main.wasm --detect-features
 "/emsdk/node/15.14.0_64bit/bin/node" /emsdk/upstream/emscripten/src/compiler.js /tmp/tmptbjg2ij8.json
 "/emsdk/upstream/bin/llvm-objcopy" /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers
/emsdk/upstream/bin/llvm-objcopy: error: '/workspaces/Emcc/main.wasm': No such file or directory
em++: error: '/emsdk/upstream/bin/llvm-objcopy /workspaces/Emcc/main.wasm /workspaces/Emcc/main.wasm --remove-section=.debug* --remove-section=producers' failed (returned 1)
make: *** [Makefile:6: build] Error 1
emmake: error: 'make' failed (returned 2)
root@051de5774b0d:/workspaces/Emcc#

Thanks

Answered by sbc100

Jun 1, 2023

I think its some kind of bug in docker for windows.. or at least some kind of limitation. I don't think its something emscripten can fix.

View full answer

sbc100 · 2023-05-30T17:39:17Z

sbc100
May 30, 2023
Maintainer

Is /workspaces/Emcc/ some kind of external mount point? What is mounted there? Is there some kind of permissions issue on that filesystem?

In the failure case, when list the /workspaces/Emcc/ do you see main.wasm there, or not?

5 replies

vhexl May 31, 2023
Author

Thanks

/workspaces/Emcc/ is my workspace directory

mounte info
container: /workspaces/Emcc
host: d:\Workspace\DevelopEnv\Emcc

In case of failure, main.wasm exists

This is my work directory, I think there should be no permission issues

root@051de5774b0d:/workspaces/Emcc# ls -a -l
total 488
drwxrwxrwx 1 root root   4096 May 31 04:35 .
drwxr-xr-x 3 root root   4096 May 26 17:19 ..
drwxrwxrwx 1 root root   4096 May 26 17:10 .devcontainer
-rwxrwxrwx 1 root root     60 May 26 17:11 Emcc.code-workspace
-rw-r--r-- 1 root root    310 May 27 12:53 Makefile
drwxrwxrwx 1 root root   4096 May 27 07:50 lsp-dsp-lib
-rw-r--r-- 1 root root   2898 May 31 06:43 main.cpp
-rw-r--r-- 1 root root 178706 May 28 07:41 main.js
-rwxr-xr-x 1 root root 311068 May 31 04:35 main.wasm

This is my dev container config, I tried rebuilding my dev container but nothing changes

devcontainer.json

{
	"name": "Emcc-dev",
	"build": {
		"dockerfile": "dockerfile"
	}
}

dockerfile

FROM emscripten/emsdk:latest

CMD ["/bin/bash"]

sbc100 May 31, 2023
Maintainer

The fact that /workspaces/Emcc/ maps to windows directory makes me suspicious. We've seen issues in the past where windows mounts into docker behave a little strangely. If you link to /tmp/ somewhere and then copy the result into /workspaces/Emcc/ does the problem go away? I strongly suspect that it will.

vhexl Jun 1, 2023
Author

You are right, I copied Emcc/ to /tmp/, and never had this problem again, but this problem has good fix?

sbc100 Jun 1, 2023
Maintainer

I think its some kind of bug in docker for windows.. or at least some kind of limitation. I don't think its something emscripten can fix.

Answer selected by vhexl

vhexl Jun 1, 2023
Author

All right, I got it, I marked this answer

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

em++ sometimes cannot generate .js files #19462

{{title}}

Replies: 1 comment 5 replies

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

Select a reply

em++ sometimes cannot generate .js files #19462

vhexl May 27, 2023

Replies: 1 comment · 5 replies

sbc100 May 30, 2023 Maintainer

vhexl May 31, 2023 Author

sbc100 May 31, 2023 Maintainer

vhexl Jun 1, 2023 Author

sbc100 Jun 1, 2023 Maintainer

vhexl Jun 1, 2023 Author

vhexl
May 27, 2023

Replies: 1 comment 5 replies

sbc100
May 30, 2023
Maintainer

vhexl May 31, 2023
Author

sbc100 May 31, 2023
Maintainer

vhexl Jun 1, 2023
Author

sbc100 Jun 1, 2023
Maintainer

vhexl Jun 1, 2023
Author