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emscripten: Fix and re-enable dead code elimination by default

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Sebastian Krzyszkowiak 2020-05-10 16:57:38 +02:00
parent bf73da41e6
commit 6b6566d7e4
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1 changed files with 2 additions and 2 deletions
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cmake/libsuperderpy.cmake
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@ -279,7 +279,7 @@ if (NOT LIBSUPERDERPY_CONFIG_INCLUDED)
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -s WASM=1")
set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 --no-heap-copy -s BINARYEN_TRAP_MODE=\"clamp\")
option(EMSCRIPTEN_DCE "Enable dead code elimination in WebAssembly build" OFF) # off by default due to issues with emterpreted functions not getting exported
option(EMSCRIPTEN_DCE "Enable dead code elimination in WebAssembly build" ON)
if (EMSCRIPTEN_DCE)
set(EMSCRIPTEN_FLAGS ${EMSCRIPTEN_FLAGS} -s MAIN_MODULE=2 -s EXPORTED_FUNCTIONS=@${CMAKE_BINARY_DIR}/emscripten-imports.json)
else (EMSCRIPTEN_DCE)
@ -540,7 +540,7 @@ if (NOT LIBSUPERDERPY_CONFIG_INCLUDED)
set(CFLAGS_LIST ${CFLAGS_L})
if("${LIBSUPERDERPY_EMSCRIPTEN_MODE}" STREQUAL "wasm")
add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/emscripten-imports.json COMMAND bash -c "(for file in ${CMAKE_INSTALL_PREFIX}/*.wasm.so; do wasm-dis $file; done) | grep \"(import \\\"env\\\" \" | awk '{print $3}' | sort -u | awk 'BEGIN {printf \"[\\\"_main\\\"\" } END {print \"]\"} {printf \",%s\", $1}' > ${CMAKE_BINARY_DIR}/emscripten-imports.json" DEPENDS ${LIBSUPERDERPY_GAMENAME}_install WORKING_DIRECTORY ${CMAKE_BINARY_DIR} USES_TERMINAL VERBATIM)
add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/emscripten-imports.json COMMAND bash -c "(for file in ${CMAKE_INSTALL_PREFIX}/*.wasm.so; do wasm-dis $file; done) | grep \"(import \\\"env\\\" \" | awk '{print $3}' | awk -F '$' '{ print $2?$2:$0}' | sort -u | awk 'BEGIN {printf \"[\\\"_main\\\"\" } END {print \"]\"} {printf \",%s\", $1}' > ${CMAKE_BINARY_DIR}/emscripten-imports.json" DEPENDS ${LIBSUPERDERPY_GAMENAME}_install WORKING_DIRECTORY ${CMAKE_BINARY_DIR} USES_TERMINAL VERBATIM)
else()
# not implemented yet for asm.js
add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/emscripten-imports.json COMMAND bash -c "echo '[\"_main\"]' > ${CMAKE_BINARY_DIR}/emscripten-imports.json" DEPENDS ${LIBSUPERDERPY_GAMENAME}_install WORKING_DIRECTORY ${CMAKE_BINARY_DIR} USES_TERMINAL VERBATIM)