diff options
Diffstat (limited to 'platform/javascript/detect.py')
| -rw-r--r-- | platform/javascript/detect.py | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/platform/javascript/detect.py b/platform/javascript/detect.py index c7acbde3f7..7bf3e1bc1d 100644 --- a/platform/javascript/detect.py +++ b/platform/javascript/detect.py @@ -24,6 +24,7 @@ def get_opts(): def get_flags(): return [ ('tools', False), + ('builtin_pcre2_with_jit', False), # Disabling the mbedtls module reduces file size. # The module has little use due to the limited networking functionality # in this platform. For the available networking methods, the browser @@ -69,18 +70,20 @@ def configure(env): exec(f.read(), em_config) except StandardError as e: raise RuntimeError("Emscripten configuration file '%s' is invalid:\n%s" % (em_config_file, e)) - if 'EMSCRIPTEN_ROOT' not in em_config: - raise RuntimeError("'EMSCRIPTEN_ROOT' missing in Emscripten configuration file '%s'" % em_config_file) - env.PrependENVPath('PATH', em_config['EMSCRIPTEN_ROOT']) + if 'BINARYEN_ROOT' in em_config and os.path.isdir(os.path.join(em_config.get('BINARYEN_ROOT'), 'emscripten')): + # New style, emscripten path as a subfolder of BINARYEN_ROOT + env.PrependENVPath('PATH', os.path.join(em_config.get('BINARYEN_ROOT'), 'emscripten')) + elif 'EMSCRIPTEN_ROOT' in em_config: + # Old style (but can be there as a result from previous activation, so do last) + env.PrependENVPath('PATH', em_config.get('EMSCRIPTEN_ROOT')) + else: + raise RuntimeError("'BINARYEN_ROOT' or 'EMSCRIPTEN_ROOT' missing in Emscripten configuration file '%s'" % em_config_file) env['CC'] = 'emcc' env['CXX'] = 'em++' env['LINK'] = 'emcc' - # Emscripten's ar has issues with duplicate file names, so use cc. - env['AR'] = 'emcc' - env['ARFLAGS'] = '-o' - # emranlib is a noop, so it's safe to use with AR=emcc. + env['AR'] = 'emar' env['RANLIB'] = 'emranlib' # Use TempFileMunge since some AR invocations are too long for cmd.exe. @@ -103,25 +106,37 @@ def configure(env): ## Compile flags - env.Append(CPPPATH=['#platform/javascript']) + env.Prepend(CPPPATH=['#platform/javascript']) env.Append(CPPDEFINES=['JAVASCRIPT_ENABLED', 'UNIX_ENABLED']) # No multi-threading (SharedArrayBuffer) available yet, # once feasible also consider memory buffer size issues. env.Append(CPPDEFINES=['NO_THREADS']) - # 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']) + # Disable exceptions and rtti on non-tools (template) builds + if not env['tools']: + # 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']) if env['javascript_eval']: env.Append(CPPDEFINES=['JAVASCRIPT_EVAL_ENABLED']) ## Link flags + # We use IDBFS in javascript_main.cpp. Since Emscripten 1.39.1 it needs to + # be linked explicitly. + env.Append(LIBS=['idbfs.js']) + env.Append(LINKFLAGS=['-s', 'BINARYEN=1']) - env.Append(LINKFLAGS=['-s', 'BINARYEN_TRAP_MODE=\'clamp\'']) + + # This needs to be defined for Emscripten using 'fastcomp' (default pre-1.39.0) + # and undefined if using 'upstream'. And to make things simple, earlier + # Emscripten versions didn't include 'fastcomp' in their path, so we check + # against the presence of 'upstream' to conditionally add the flag. + if not "upstream" in em_config['EMSCRIPTEN_ROOT']: + env.Append(LINKFLAGS=['-s', 'BINARYEN_TRAP_MODE=\'clamp\'']) # Allow increasing memory buffer size during runtime. This is efficient # when using WebAssembly (in comparison to asm.js) and works well for @@ -135,3 +150,6 @@ def configure(env): # TODO: Reevaluate usage of this setting now that engine.js manages engine runtime. env.Append(LINKFLAGS=['-s', 'NO_EXIT_RUNTIME=1']) + + #adding flag due to issue with emscripten 1.38.41 callMain method https://github.com/emscripten-core/emscripten/blob/incoming/ChangeLog.md#v13841-08072019 + env.Append(LINKFLAGS=['-s', 'EXTRA_EXPORTED_RUNTIME_METHODS=["callMain"]']) |