diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 59 |
1 files changed, 53 insertions, 6 deletions
@@ -17,9 +17,12 @@ AR = ar RELEASE_TARGET := $(BUILD_DIR)/libolm.so.$(VERSION) STATIC_RELEASE_TARGET := $(BUILD_DIR)/libolm.a DEBUG_TARGET := $(BUILD_DIR)/libolm_debug.so.$(VERSION) -JS_TARGET := javascript/olm.js +JS_WASM_TARGET := javascript/olm.js +JS_ASMJS_TARGET := javascript/olm_legacy.js JS_EXPORTED_FUNCTIONS := javascript/exported_functions.json +JS_EXTRA_EXPORTED_RUNTIME_METHODS := ALLOC_STACK +JS_EXTERNS := javascript/externs.js PUBLIC_HEADERS := include/olm/olm.h include/olm/outbound_group_session.h include/olm/inbound_group_session.h include/olm/pk.h @@ -39,11 +42,22 @@ FUZZER_BINARIES := $(addprefix $(BUILD_DIR)/,$(basename $(FUZZER_SOURCES))) FUZZER_DEBUG_BINARIES := $(patsubst $(BUILD_DIR)/fuzzers/fuzz_%,$(BUILD_DIR)/fuzzers/debug_%,$(FUZZER_BINARIES)) TEST_BINARIES := $(patsubst tests/%,$(BUILD_DIR)/tests/%,$(basename $(TEST_SOURCES))) JS_OBJECTS := $(addprefix $(BUILD_DIR)/javascript/,$(OBJECTS)) + +# pre & post are the js-pre/js-post options to emcc. +# They are injected inside the modularised code and +# processed by the optimiser. JS_PRE := $(wildcard javascript/*pre.js) JS_POST := javascript/olm_outbound_group_session.js \ javascript/olm_inbound_group_session.js \ javascript/olm_pk.js \ javascript/olm_post.js + +# The prefix & suffix are just added onto the start & end +# of what comes out emcc, so are outside of the modularised +# code and not seen by the opimiser. +JS_PREFIX := javascript/olm_prefix.js +JS_SUFFIX := javascript/olm_suffix.js + DOCS := tracing/README.html \ docs/megolm.html \ docs/olm.html \ @@ -60,11 +74,23 @@ CFLAGS += -Wall -Werror -std=c99 -fPIC CXXFLAGS += -Wall -Werror -std=c++11 -fPIC LDFLAGS += -Wall -Werror -EMCCFLAGS = --closure 1 --memory-init-file 0 -s NO_FILESYSTEM=1 -s INVOKE_RUN=0 +EMCCFLAGS = --closure 1 --memory-init-file 0 -s NO_FILESYSTEM=1 -s INVOKE_RUN=0 -s MODULARIZE=1 # NO_BROWSER is kept for compatibility with emscripten 1.35.24, but is no # longer needed. EMCCFLAGS += -s NO_BROWSER=1 +# Olm generally doesn't need a lot of memory to encrypt / decrypt its usual +# payloads (ie. Matrix messages), but we do need about 128K of heap to encrypt +# a 64K event (enough to store the ciphertext and the plaintext, bearing in +# mind that the plaintext can only be 48K because base64). We also have about +# 36K of statics. So let's have 256K of memory. +# (This can't be changed by the app with wasm since it's baked into the wasm). +# (emscripten also mandates at least 16MB of memory for asm.js now, so +# we don't use this for the legacy build.) +EMCCFLAGS_WASM += -s TOTAL_STACK=65536 -s TOTAL_MEMORY=262144 + +EMCCFLAGS_ASMJS += -s WASM=0 + EMCC.c = $(EMCC) $(CFLAGS) $(CPPFLAGS) -c EMCC.cc = $(EMCC) $(CXXFLAGS) $(CPPFLAGS) -c EMCC_LINK = $(EMCC) $(LDFLAGS) $(EMCCFLAGS) @@ -99,7 +125,8 @@ $(FUZZER_DEBUG_BINARIES): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS) $(JS_OBJECTS): CFLAGS += $(JS_OPTIMIZE_FLAGS) $(JS_OBJECTS): CXXFLAGS += $(JS_OPTIMIZE_FLAGS) -$(JS_TARGET): LDFLAGS += $(JS_OPTIMIZE_FLAGS) +$(JS_WASM_TARGET): LDFLAGS += $(JS_OPTIMIZE_FLAGS) +$(JS_ASMJS_TARGET): LDFLAGS += $(JS_OPTIMIZE_FLAGS) ### Fix to make mkdir work on windows and linux ifeq ($(shell echo "check_quotes"),"check_quotes") @@ -142,15 +169,35 @@ static: $(STATIC_RELEASE_TARGET) $(STATIC_RELEASE_TARGET): $(RELEASE_OBJECTS) $(AR) rcs $@ $^ -js: $(JS_TARGET) +js: $(JS_WASM_TARGET) $(JS_ASMJS_TARGET) .PHONY: js -$(JS_TARGET): $(JS_OBJECTS) $(JS_PRE) $(JS_POST) $(JS_EXPORTED_FUNCTIONS) - $(EMCC_LINK) \ +# Note that the output file we give to emcc determines the name of the +# wasm file baked into the js, hence messing around outputting to olm.js +# and then renaming it. +$(JS_WASM_TARGET): $(JS_OBJECTS) $(JS_PRE) $(JS_POST) $(JS_EXPORTED_FUNCTIONS) $(JS_PREFIX) $(JS_SUFFIX) + EMCC_CLOSURE_ARGS="--externs $(JS_EXTERNS)" $(EMCC_LINK) \ + $(EMCCFLAGS_WASM) \ + $(foreach f,$(JS_PRE),--pre-js $(f)) \ + $(foreach f,$(JS_POST),--post-js $(f)) \ + -s "EXPORTED_FUNCTIONS=@$(JS_EXPORTED_FUNCTIONS)" \ + -s "EXTRA_EXPORTED_RUNTIME_METHODS=$(JS_EXTRA_EXPORTED_RUNTIME_METHODS)" \ + $(JS_OBJECTS) -o $@ + mv $@ javascript/olmtmp.js + cat $(JS_PREFIX) javascript/olmtmp.js $(JS_SUFFIX) > $@ + rm javascript/olmtmp.js + +$(JS_ASMJS_TARGET): $(JS_OBJECTS) $(JS_PRE) $(JS_POST) $(JS_EXPORTED_FUNCTIONS) $(JS_PREFIX) $(JS_SUFFIX) + EMCC_CLOSURE_ARGS="--externs $(JS_EXTERNS)" $(EMCC_LINK) \ + $(EMCCFLAGS_ASMJS) \ $(foreach f,$(JS_PRE),--pre-js $(f)) \ $(foreach f,$(JS_POST),--post-js $(f)) \ -s "EXPORTED_FUNCTIONS=@$(JS_EXPORTED_FUNCTIONS)" \ + -s "EXTRA_EXPORTED_RUNTIME_METHODS=$(JS_EXTRA_EXPORTED_RUNTIME_METHODS)" \ $(JS_OBJECTS) -o $@ + mv $@ javascript/olmtmp.js + cat $(JS_PREFIX) javascript/olmtmp.js $(JS_SUFFIX) > $@ + rm javascript/olmtmp.js build_tests: $(TEST_BINARIES) |