diff options
Diffstat (limited to 'platform/web/detect.py')
| -rw-r--r-- | platform/web/detect.py | 70 |
1 files changed, 28 insertions, 42 deletions
diff --git a/platform/web/detect.py b/platform/web/detect.py index ae0ff2c4ea..b1c1dd48a9 100644 --- a/platform/web/detect.py +++ b/platform/web/detect.py @@ -38,8 +38,9 @@ def get_opts(): BoolVariable("use_safe_heap", "Use Emscripten SAFE_HEAP sanitizer", False), # eval() can be a security concern, so it can be disabled. BoolVariable("javascript_eval", "Enable JavaScript eval interface", True), - BoolVariable("threads_enabled", "Enable WebAssembly Threads support (limited browser support)", True), - BoolVariable("gdnative_enabled", "Enable WebAssembly GDNative support (produces bigger binaries)", False), + BoolVariable( + "dlink_enabled", "Enable WebAssembly dynamic linking (GDExtension support). Produces bigger binaries", False + ), BoolVariable("use_closure_compiler", "Use closure compiler to minimize JavaScript code", False), ] @@ -50,6 +51,13 @@ def get_flags(): ("tools", False), ("builtin_pcre2_with_jit", False), ("vulkan", False), + # Use -Os to prioritize optimizing for reduced file size. This is + # particularly valuable for the web platform because it directly + # decreases download time. + # -Os reduces file size by around 5 MiB over -O3. -Oz only saves about + # 100 KiB over -Os, which does not justify the negative impact on + # run-time performance. + ("optimize", "size"), ] @@ -71,15 +79,12 @@ def configure(env): ## Build type if env["target"].startswith("release"): - # Use -Os to prioritize optimizing for reduced file size. This is - # particularly valuable for the web platform because it directly - # decreases download time. - # -Os reduces file size by around 5 MiB over -O3. -Oz only saves about - # 100 KiB over -Os, which does not justify the negative impact on - # run-time performance. - if env["optimize"] != "none": + if env["optimize"] == "size": env.Append(CCFLAGS=["-Os"]) env.Append(LINKFLAGS=["-Os"]) + elif env["optimize"] == "speed": + env.Append(CCFLAGS=["-O3"]) + env.Append(LINKFLAGS=["-O3"]) if env["target"] == "release_debug": # Retain function names for backtraces at the cost of file size. @@ -93,21 +98,11 @@ def configure(env): env.Append(LINKFLAGS=["-s", "ASSERTIONS=1"]) if env["tools"]: - if not env["threads_enabled"]: - print('Note: Forcing "threads_enabled=yes" as it is required for the web editor.') - env["threads_enabled"] = "yes" if env["initial_memory"] < 64: print('Note: Forcing "initial_memory=64" as it is required for the web editor.') env["initial_memory"] = 64 - env.Append(CCFLAGS=["-frtti"]) - elif env["builtin_icu"]: - env.Append(CCFLAGS=["-fno-exceptions", "-frtti"]) else: - # Disable exceptions and rtti on non-tools (template) builds - # These flags help keep the file size down. - env.Append(CCFLAGS=["-fno-exceptions", "-fno-rtti"]) - # Don't use dynamic_cast, necessary with no-rtti. - env.Append(CPPDEFINES=["NO_SAFE_CAST"]) + env.Append(CPPFLAGS=["-fno-exceptions"]) env.Append(LINKFLAGS=["-s", "INITIAL_MEMORY=%sMB" % env["initial_memory"]]) @@ -171,9 +166,9 @@ def configure(env): env["ARCOM_POSIX"] = env["ARCOM"].replace("$TARGET", "$TARGET.posix").replace("$SOURCES", "$SOURCES.posix") env["ARCOM"] = "${TEMPFILE(ARCOM_POSIX)}" - # All intermediate files are just LLVM bitcode. + # All intermediate files are just object files. env["OBJPREFIX"] = "" - env["OBJSUFFIX"] = ".bc" + env["OBJSUFFIX"] = ".o" env["PROGPREFIX"] = "" # Program() output consists of multiple files, so specify suffixes manually at builder. env["PROGSUFFIX"] = "" @@ -196,31 +191,22 @@ def configure(env): env.Append(CPPDEFINES=["JAVASCRIPT_EVAL_ENABLED"]) # Thread support (via SharedArrayBuffer). - if env["threads_enabled"]: - env.Append(CPPDEFINES=["PTHREAD_NO_RENAME"]) - env.Append(CCFLAGS=["-s", "USE_PTHREADS=1"]) - env.Append(LINKFLAGS=["-s", "USE_PTHREADS=1"]) - env.Append(LINKFLAGS=["-s", "PTHREAD_POOL_SIZE=8"]) - env.Append(LINKFLAGS=["-s", "WASM_MEM_MAX=2048MB"]) - env.extra_suffix = ".threads" + env.extra_suffix - else: - env.Append(CPPDEFINES=["NO_THREADS"]) + env.Append(CPPDEFINES=["PTHREAD_NO_RENAME"]) + env.Append(CCFLAGS=["-s", "USE_PTHREADS=1"]) + env.Append(LINKFLAGS=["-s", "USE_PTHREADS=1"]) + env.Append(LINKFLAGS=["-s", "PTHREAD_POOL_SIZE=8"]) + env.Append(LINKFLAGS=["-s", "WASM_MEM_MAX=2048MB"]) - if env["gdnative_enabled"]: + if env["dlink_enabled"]: cc_version = get_compiler_version(env) cc_semver = (int(cc_version["major"]), int(cc_version["minor"]), int(cc_version["patch"])) - if cc_semver < (2, 0, 10): - print("GDNative support requires emscripten >= 2.0.10, detected: %s.%s.%s" % cc_semver) + if cc_semver < (3, 1, 14): + print("GDExtension support requires emscripten >= 3.1.14, detected: %s.%s.%s" % cc_semver) sys.exit(255) - if env["threads_enabled"] and cc_semver < (3, 1, 14): - print("Threads and GDNative requires emscripten >= 3.1.14, detected: %s.%s.%s" % cc_semver) - sys.exit(255) - env.Append(CCFLAGS=["-s", "RELOCATABLE=1"]) - env.Append(LINKFLAGS=["-s", "RELOCATABLE=1"]) - # Weak symbols are broken upstream: https://github.com/emscripten-core/emscripten/issues/12819 - env.Append(CPPDEFINES=["ZSTD_HAVE_WEAK_SYMBOLS=0"]) - env.extra_suffix = ".gdnative" + env.extra_suffix + env.Append(CCFLAGS=["-s", "SIDE_MODULE=2"]) + env.Append(LINKFLAGS=["-s", "SIDE_MODULE=2"]) + env.extra_suffix = ".dlink" + env.extra_suffix # Reduce code size by generating less support code (e.g. skip NodeJS support). env.Append(LINKFLAGS=["-s", "ENVIRONMENT=web,worker"]) |