Merge pull request ethereum#1342 from ethereum/emscripten-codesize

Emscripten code size improvements [WIP TEST]
01admin · Nov 25, 2016 · 9c2ed33 · 9c2ed33
2 parents d767782 + 7bbaeed
commit 9c2ed33
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diff --git a/cmake/EthCompilerSettings.cmake b/cmake/EthCompilerSettings.cmake
@@ -155,6 +155,9 @@ if (("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") OR ("${CMAKE_CXX_COMPILER_ID}" MA
 
 		if (EMSCRIPTEN)
 			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --memory-init-file 0 -O3 -s LINKABLE=1 -s DISABLE_EXCEPTION_CATCHING=0 -s NO_EXIT_RUNTIME=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_DYNAMIC_EXECUTION=1")
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdata-sections -ffunction-sections -Wl,--gc-sections")
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
+			set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s NO_FILESYSTEM=1 -s AGGRESSIVE_VARIABLE_ELIMINATION=1")
 			add_definitions(-DETH_EMSCRIPTEN=1)
 		endif()
 	endif()

diff --git a/scripts/travis-emscripten/build_emscripten.sh b/scripts/travis-emscripten/build_emscripten.sh
@@ -95,4 +95,8 @@ emmake make -j 4
 cd ..
 cp build/solc/soljson.js ./
 
+OUTPUT_SIZE=`ls -la build/solc/soljson.js`
+
+echo "Emscripten output size: ${OUTPUT_SIZE}"
+
 echo -en 'travis_fold:end:compiling_solidity\\r'