2023-10-30 06:33:08 +08:00
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# qmake configuration for building with emscripten
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MAKEFILE_GENERATOR = UNIX
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QMAKE_PLATFORM = wasm unix
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include(../gcc-base.conf)
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include(../clang.conf)
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load(device_config)
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load(emcc_ver)
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# Support enabling asyncify by configuring with "-device-option QT_EMSCRIPTEN_ASYNCIFY=1"
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!isEmpty(QT_EMSCRIPTEN_ASYNCIFY): {
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!equals(QT_EMSCRIPTEN_ASYNCIFY, 1):!equals(QT_EMSCRIPTEN_ASYNCIFY, 0): \
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message(Error: The value for QT_EMSCRIPTEN_ASYNCIFY must be 0 or 1)
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equals(QT_EMSCRIPTEN_ASYNCIFY, 1): {
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QMAKE_CFLAGS += -DQT_HAVE_EMSCRIPTEN_ASYNCIFY
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QMAKE_CXXFLAGS += -DQT_HAVE_EMSCRIPTEN_ASYNCIFY
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QMAKE_LFLAGS += -s ASYNCIFY
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# Emscripten recommends building with optimizations when using asyncify
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# in order to reduce wasm file size, and may also generate broken wasm
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# (with "wasm validation error: too many locals" type errors) if optimizations
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# are omitted. Enable optimizations also for debug builds.
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QMAKE_LFLAGS_DEBUG += -Os
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}
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}
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# Declare async functions
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QMAKE_LFLAGS += -s \'ASYNCIFY_IMPORTS=qt_asyncify_suspend_js,qt_asyncify_resume_js\'
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EMCC_COMMON_LFLAGS += \
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-s WASM=1 \
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-s MAX_WEBGL_VERSION=2 \
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-s ERROR_ON_UNDEFINED_SYMBOLS=1 \
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--bind \
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-s FETCH=1 \
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-s MODULARIZE=1 \
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-s EXPORT_NAME=createQtAppInstance \
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2023-11-02 05:23:55 +08:00
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-s WASM_BIGINT=1 \
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-s STACK_SIZE=5MB
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2023-10-30 06:33:08 +08:00
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# The -s arguments can also be used with release builds,
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# but are here in debug for clarity.
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EMCC_COMMON_LFLAGS_DEBUG = \
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$$EMCC_COMMON_LFLAGS \
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-s DEMANGLE_SUPPORT=1 \
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# -s LIBRARY_DEBUG=1 \ #print out library calls, verbose
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# -s SYSCALL_DEBUG=1 \ #print out sys calls, verbose
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# -s FS_LOG=1 \ #print out filesystem ops, verbose
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# -s SOCKET_DEBUG \ #print out socket,network data transfer
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# -s GL_DEBUG=1 \
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--profiling-funcs
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QMAKE_LFLAGS_DEBUG += -g2
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QMAKE_LFLAGS_RELEASE += -O2
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QMAKE_COMPILER += emscripten
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QMAKE_CC = emcc
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QMAKE_CXX = em++
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QMAKE_LINK = $$QMAKE_CXX
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QMAKE_LINK_SHLIB = $$QMAKE_CXX
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QMAKE_LINK_C = $$QMAKE_CC
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QMAKE_LINK_C_SHLIB = $$QMAKE_CC
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QMAKE_LIBS_THREAD = $$QMAKE_CFLAGS_THREAD
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QMAKE_LFLAGS += $$EMCC_COMMON_LFLAGS
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QMAKE_LFLAGS_DEBUG += $$EMCC_COMMON_LFLAGS_DEBUG
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QMAKE_PREFIX_SHLIB = lib
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QMAKE_EXTENSION_SHLIB = so # llvm bitcode, linked to js in post_link
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QMAKE_PREFIX_STATICLIB = lib
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QMAKE_EXTENSION_STATICLIB = a # llvm bitcode
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QMAKE_AR = emar cqs
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equals(QMAKE_HOST.os, Windows) {
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QMAKE_RESPONSEFILE_THRESHOLD = 1
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QMAKE_AR_CMD = \
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"$(file >$(OBJECTS_DIR)/$(TARGET).rsp, $(subst \\,/,$(OBJECTS)))$$escape_expand(\\n\\t)" \
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"$(AR) $(DESTDIR)$(TARGET) @$(OBJECTS_DIR)/$(TARGET).rsp"
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}
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QMAKE_DISTCLEAN += *.html *.js *.wasm
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load(qt_config)
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