Add support for building the JS wrappers to the Makefile
Now that we have C and C++, we need to split the compile and link steps (because we need different flags for the C and C++ files), so this is easier with a Makefile.
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4 changed files with 47 additions and 76 deletions
45
Makefile
45
Makefile
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@ -3,19 +3,38 @@
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BUILD_DIR := build
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OPTIMIZE_FLAGS ?= -g -O3
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TEST_OPTIMIZE_FLAGS ?= -g -O0
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JS_OPTIMIZE_FLAGS ?= -O3
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CC = gcc
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EMCC = emcc
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TARGET := $(BUILD_DIR)/libolm.so
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JS_TARGET := javascript/olm.js
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JS_EXPORTED_FUNCTIONS := javascript/exported_functions.json
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PUBLIC_HEADERS := include/olm/olm.hh
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SOURCES := $(wildcard src/*.cpp) $(wildcard src/*.c)
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OBJECTS := $(patsubst src/%,$(BUILD_DIR)/%,$(patsubst %.c,%.o,$(patsubst %.cpp,%.o,$(SOURCES))))
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TEST_SOURCES := $(wildcard tests/test_*.cpp) $(wildcard tests/test_*.c)
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TEST_BINARIES := $(patsubst tests/%,$(BUILD_DIR)/%,$(patsubst %.c,%,$(patsubst %.cpp,%,$(TEST_SOURCES))))
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JS_OBJECTS := $(patsubst %.o,%.js.bc,$(OBJECTS))
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JS_PRE := $(wildcard javascript/*pre.js)
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JS_POST := $(wildcard javascript/*post.js)
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CPPFLAGS += -Iinclude -Ilib
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CFLAGS += -Wall --std=c89 -fPIC
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CXXFLAGS += -Wall --std=c++11 -fPIC
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LDFLAGS += -Wall
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EMCCFLAGS = --closure 1 --memory-init-file 0 -s NO_FILESYSTEM=1 -s INVOKE_RUN=0
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# NO_BROWSER is kept for compatibility with emscripten 1.35.24, but is no
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# longer needed.
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EMCCFLAGS += -s NO_BROWSER=1
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EMCC.c = $(EMCC) $(CFLAGS) $(CPPFLAGS) -c
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EMCC.cc = $(EMCC) $(CXXFLAGS) $(CPPFLAGS) -c
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EMCC_LINK = $(EMCC) $(LDFLAGS) $(EMCCFLAGS)
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# generate .d files when compiling
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CPPFLAGS += -MMD
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@ -29,14 +48,29 @@ $(TEST_BINARIES): CPPFLAGS += -Itests/include
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$(TEST_BINARIES): LDLIBS += -lolm
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$(TEST_BINARIES): LDFLAGS += $(TEST_OPTIMIZE_FLAGS) -L$(BUILD_DIR)
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$(JS_OBJECTS): CFLAGS += $(JS_OPTIMIZE_FLAGS)
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$(JS_OBJECTS): CXXFLAGS += $(JS_OPTIMIZE_FLAGS)
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$(JS_TARGET): LDFLAGS += $(JS_OPTIMIZE_FLAGS)
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### top-level targets
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$(TARGET): $(OBJECTS)
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$(CXX) $(LDFLAGS) --shared -fPIC $^ $(OUTPUT_OPTION)
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js: $(JS_TARGET)
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.PHONY: js
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$(JS_TARGET): $(JS_OBJECTS) $(JS_PRE) $(JS_POST) $(JS_EXPORTED_FUNCTIONS)
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$(EMCC_LINK) \
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--pre-js $(JS_PRE) --post-js $(JS_POST) \
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-s "EXPORTED_FUNCTIONS=@$(JS_EXPORTED_FUNCTIONS)" \
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$(JS_OBJECTS) -o $@
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clean:;
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rm -rf $(OBJECTS) $(OBJECTS:.o=.d) \
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$(TEST_BINARIES) $(TEST_BINARIES:=.d) \
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$(JS_OBJECTS) $(JS_TARGET) \
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$(JS_EXPORTED_FUNCTIONS) \
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$(TARGET)
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build_tests: $(TEST_BINARIES)
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@ -47,6 +81,10 @@ test: build_tests
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LD_LIBRARY_PATH=$(BUILD_DIR) $$i || exit $$?; \
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done
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$(JS_EXPORTED_FUNCTIONS): $(PUBLIC_HEADERS)
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perl -MJSON -ne '/(olm_[^( ]*)\(/ && push @f, "_$$1"; END { print encode_json \@f }' $^ > $@.tmp
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mv $@.tmp $@
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### rules for building objects
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$(BUILD_DIR)/%.o: src/%.c
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$(COMPILE.c) $(OUTPUT_OPTION) $<
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@ -54,6 +92,12 @@ $(BUILD_DIR)/%.o: src/%.c
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$(BUILD_DIR)/%.o: src/%.cpp
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$(COMPILE.cc) $(OUTPUT_OPTION) $<
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$(BUILD_DIR)/%.js.bc: src/%.c
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$(EMCC.c) $(OUTPUT_OPTION) $<
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$(BUILD_DIR)/%.js.bc: src/%.cpp
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$(EMCC.cc) $(OUTPUT_OPTION) $<
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$(BUILD_DIR)/%: tests/%.c
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$(LINK.c) $< $(LOADLIBES) $(LDLIBS) -o $@
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@ -66,4 +110,5 @@ $(BUILD_DIR)/%: tests/%.cpp
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$(TEST_BINARIES): $(TARGET)
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-include $(OBJECTS:.o=.d)
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-include $(JS_OBJECTS:.bc=.d)
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-include $(TEST_BINARIES:=.d)
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@ -26,7 +26,7 @@ To build the javascript bindings, install emscripten from http://kripken.github.
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.. code:: bash
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javascript/build.py # builds javascript/olm.js
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make js
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npm pack javascript # packages olm.js into olm-x.y.z.tgz
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Remember to make a tag after releasing a tarball:
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@ -1,74 +0,0 @@
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#! /usr/bin/env python
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# Copyright 2015 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import subprocess
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import glob
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import os
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import sys
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import re
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import json
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os.chdir(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
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source_files = glob.glob("src/*.cpp")
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pre_js, = glob.glob("javascript/*pre.js")
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post_js, = glob.glob("javascript/*post.js")
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functions = set()
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RE_FUNCTION=re.compile("(olm_[^( ]*)\\(")
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with open("include/olm/olm.hh") as header:
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for line in header:
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match = RE_FUNCTION.search(line)
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if match:
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functions.add(match.groups()[0])
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exported_functions = os.path.abspath("javascript/exported_functions.json")
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with open(exported_functions, "w") as json_file:
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json.dump(["_" + function for function in functions], json_file)
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emcc = os.environ.get("EMCC", "emcc")
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optimize_opts = os.environ.get("OPTIMIZE_FLAGS", "-O3")
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compile_args = [emcc]
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compile_args += optimize_opts.split()
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compile_args += ["-Wall"]
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compile_args += """
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-Iinclude
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-Ilib
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-std=c++11
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--closure 1
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--memory-init-file 0
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-s NO_FILESYSTEM=1
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-s INVOKE_RUN=0
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""".split()
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# NO_BROWSER is kept for compatibility with emscripten 1.35.24, but is no
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# longer needed.
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compile_args += ("-s","NO_BROWSER=1")
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compile_args += source_files
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compile_args += ("--pre-js", pre_js)
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compile_args += ("--post-js", post_js)
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compile_args += ("-s", "EXPORTED_FUNCTIONS=@" + exported_functions)
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compile_args += sys.argv[1:]
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library = "javascript/olm.js"
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def run(args):
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print args
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print " ".join(args)
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subprocess.check_call(args)
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run(compile_args + ["-o", library])
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@ -8,7 +8,7 @@
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"README.md"
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],
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"scripts": {
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"build": "./build.py",
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"build": "make -C .. js",
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"repository": {
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