diff options
Diffstat (limited to 'emcc')
| -rwxr-xr-x | emcc | 96 |
1 files changed, 66 insertions, 30 deletions
@@ -1,4 +1,5 @@ #!/usr/bin/env python2 +# -*- Mode: python -*- ''' emcc - compiler helper script @@ -90,7 +91,10 @@ LLVM_OPT_LEVEL = { 3: 3, } -DEBUG = int(os.environ.get('EMCC_DEBUG') or 0) +DEBUG = os.environ.get('EMCC_DEBUG') +if DEBUG == "0": + DEBUG = None + TEMP_DIR = os.environ.get('EMCC_TEMP_DIR') LEAVE_INPUTS_RAW = os.environ.get('EMCC_LEAVE_INPUTS_RAW') # Do not compile .ll files into .bc, just compile them with emscripten directly # Not recommended, this is mainly for the test runner, or if you have some other @@ -118,6 +122,28 @@ if len(sys.argv) == 1: print 'emcc: no input files' exit(1) +# read response files very early on +response_file = True +while response_file: + response_file = None + for index in range(1, len(sys.argv)): + if sys.argv[index][0] == '@': + # found one, loop again next time + print >>sys.stderr, 'emcc: using response file: %s' % response_file + response_file = sys.argv[index][1:] + if not os.path.exists(response_file): + print >>sys.stderr, 'emcc: error: Response file not found: %s' % response_file + exit(1) + + response_fd = open(response_file, 'r') + extra_args = shlex.split(response_fd.read()) + response_fd.close() + + # slice in extra_args in place of the response file arg + sys.argv[index:index+1] = extra_args + #if DEBUG: print >>sys.stderr, "Expanded response file: " + " | ".join(sys.argv) + break + if sys.argv[1] == '--version': revision = '(unknown revision)' here = os.getcwd() @@ -629,7 +655,8 @@ try: ignore_dynamic_linking = False shell_path = shared.path_from_root('src', 'shell.html') js_libraries = [] - keep_debug = False + keep_llvm_debug = False + keep_js_debug = False bind = False jcache = False if use_cxx: @@ -645,7 +672,8 @@ try: for i in range(len(newargs)): newargs[i] = newargs[i].strip() # On Windows Vista (and possibly others), excessive spaces in the command line leak into the items in this array, so trim e.g. 'foo.cpp ' -> 'foo.cpp' if newargs[i].startswith('-O'): - requested_level = newargs[i][2] + # Let -O default to -O2, which is what gcc does. + requested_level = newargs[i][2:] or '2' if requested_level == 's': print >> sys.stderr, 'emcc: warning: -Os is ignored (use -O0, -O1, -O2)' else: @@ -696,7 +724,8 @@ try: newargs[i] = '' newargs[i+1] = '' elif newargs[i] == '-g': - keep_debug = True + keep_llvm_debug = True + keep_js_debug = True elif newargs[i] == '--bind': bind = True newargs[i] = '' @@ -767,7 +796,8 @@ try: if llvm_opts is None: llvm_opts = LLVM_OPT_LEVEL[opt_level] if llvm_lto is None: llvm_lto = llvm_opts > 0 - if opt_level <= 0: keep_debug = True # always keep debug in -O0 + if opt_level <= 0: keep_llvm_debug = keep_js_debug = True # always keep debug in -O0 + if opt_level > 0: keep_llvm_debug = False # JS optimizer wipes out llvm debug info from being visible if closure is None and opt_level == 3: closure = True if DEBUG: start_time = time.time() # done after parsing arguments, which might affect debug state @@ -908,9 +938,9 @@ try: shared.Settings.CORRECT_OVERFLOWS = 1 if shared.Settings.CORRECT_SIGNS >= 2 or shared.Settings.CORRECT_OVERFLOWS >= 2 or shared.Settings.CORRECT_ROUNDINGS >= 2: - keep_debug = True # must keep debug info to do line-by-line operations + keep_llvm_debug = True # must keep debug info to do line-by-line operations - if keep_debug and closure: + if (keep_llvm_debug or keep_js_debug) and closure: print >> sys.stderr, 'emcc: warning: disabling closure because debug info was requested' closure = False @@ -1017,7 +1047,7 @@ try: def create_libcxx(): if DEBUG: print >> sys.stderr, 'emcc: building libcxx for cache' os = [] - for src in ['algorithm.cpp', 'condition_variable.cpp', 'future.cpp', 'iostream.cpp', 'memory.cpp', 'random.cpp', 'stdexcept.cpp', 'system_error.cpp', 'utility.cpp', 'bind.cpp', 'debug.cpp', 'hash.cpp', 'mutex.cpp', 'string.cpp', 'thread.cpp', 'valarray.cpp', 'chrono.cpp', 'exception.cpp', 'ios.cpp', 'locale.cpp', 'regex.cpp', 'strstream.cpp', 'typeinfo.cpp']: + for src in ['algorithm.cpp', 'condition_variable.cpp', 'future.cpp', 'iostream.cpp', 'memory.cpp', 'random.cpp', 'stdexcept.cpp', 'system_error.cpp', 'utility.cpp', 'bind.cpp', 'debug.cpp', 'hash.cpp', 'mutex.cpp', 'string.cpp', 'thread.cpp', 'valarray.cpp', 'chrono.cpp', 'exception.cpp', 'ios.cpp', 'locale.cpp', 'regex.cpp', 'strstream.cpp']: o = in_temp(src + '.o') execute([shared.PYTHON, shared.EMXX, shared.path_from_root('system', 'lib', 'libcxx', src), '-o', o], stdout=stdout, stderr=stderr) os.append(o) @@ -1036,7 +1066,7 @@ try: def create_libcxxabi(): if DEBUG: print >> sys.stderr, 'emcc: building libcxxabi for cache' os = [] - for src in ['private_typeinfo.cpp']: + for src in ['private_typeinfo.cpp', 'typeinfo.cpp']: o = in_temp(src + '.o') execute([shared.PYTHON, shared.EMXX, shared.path_from_root('system', 'lib', 'libcxxabi', 'src', src), '-o', o], stdout=stdout, stderr=stderr) os.append(o) @@ -1050,29 +1080,32 @@ try: libcxxabi_symbols = filter(lambda symbol: symbol not in libc_symbols, libcxxabi_symbols) libcxxabi_symbols = set(libcxxabi_symbols) - force = False # If we have libcxx, we must force inclusion of libc, since libcxx uses new internally. Note: this is kind of hacky - + # If we have libcxx, we must force inclusion of libc, since libcxx uses new internally. Note: this is kind of hacky + # Settings this in the environment will avoid checking dependencies and make building big projects a little faster + force = os.environ.get('EMCC_FORCE_STDLIBS') + has = need = None for name, create, fix, library_symbols in [('libcxx', create_libcxx, fix_libcxx, libcxx_symbols), ('libcxxabi', create_libcxxabi, fix_libcxxabi, libcxxabi_symbols), ('libc', create_libc, fix_libc, libc_symbols)]: - need = set() - has = set() - for temp_file in temp_files: - symbols = shared.Building.llvm_nm(temp_file) - for library_symbol in library_symbols: - if library_symbol in symbols.undefs: - need.add(library_symbol) - if library_symbol in symbols.defs: - has.add(library_symbol) - for haz in has: # remove symbols that are supplied by another of the inputs - if haz in need: - need.remove(haz) - if DEBUG: print >> sys.stderr, 'emcc: considering including %s: we need %s and have %s' % (name, str(need), str(has)) + if not force: + need = set() + has = set() + for temp_file in temp_files: + symbols = shared.Building.llvm_nm(temp_file) + for library_symbol in library_symbols: + if library_symbol in symbols.undefs: + need.add(library_symbol) + if library_symbol in symbols.defs: + has.add(library_symbol) + for haz in has: # remove symbols that are supplied by another of the inputs + if haz in need: + need.remove(haz) + if DEBUG: print >> sys.stderr, 'emcc: considering including %s: we need %s and have %s' % (name, str(need), str(has)) if force or len(need) > 0: # We need to build and link the library in if DEBUG: print >> sys.stderr, 'emcc: including %s' % name libfile = shared.Cache.get(name, create) - if len(has) > 0: + if has and len(has) > 0: # remove the symbols we do not need fixed = in_temp(uniquename(libfile)) + '.bc' shutil.copyfile(libfile, fixed) @@ -1082,7 +1115,7 @@ try: libfile = fixed extra_files_to_link.append(libfile) force = True - if fix: + if fix and need: fix(need) # First, combine the bitcode files if there are several. We must also link if we have a singleton .a @@ -1090,7 +1123,10 @@ try: (not LEAVE_INPUTS_RAW and not (suffix(temp_files[0]) in BITCODE_SUFFIXES or suffix(temp_files[0]) in DYNAMICLIB_SUFFIXES) and shared.Building.is_ar(temp_files[0])): linker_inputs = temp_files + extra_files_to_link if DEBUG: print >> sys.stderr, 'emcc: linking: ', linker_inputs + t0 = time.time() shared.Building.link(linker_inputs, in_temp(target_basename + '.bc')) + t1 = time.time() + if DEBUG: print >> sys.stderr, 'emcc: linking took %.2f seconds' % (t1 - t0) final = in_temp(target_basename + '.bc') else: if not LEAVE_INPUTS_RAW: @@ -1117,7 +1153,7 @@ try: # Optimize, if asked to if not LEAVE_INPUTS_RAW: - link_opts = [] if keep_debug and opt_level == 0 else ['-strip-debug'] # remove LLVM debug info in -O1+, since the optimizer removes it anyhow + link_opts = [] if keep_llvm_debug else ['-strip-debug'] # remove LLVM debug info in -O1+, since the optimizer removes it anyhow if llvm_opts > 0: shared.Building.llvm_opt(in_temp(target_basename + '.bc'), llvm_opts) if DEBUG: save_intermediate('opt', 'bc') @@ -1208,7 +1244,7 @@ try: def flush_js_optimizer_queue(): global final, js_optimizer_queue if len(js_optimizer_queue) > 0 and not(len(js_optimizer_queue) == 1 and js_optimizer_queue[0] == 'last'): - if DEBUG < 2: + if DEBUG != '2': if shared.Settings.ASM_JS: js_optimizer_queue = ['asm'] + js_optimizer_queue if DEBUG: print >> sys.stderr, 'emcc: applying js optimization passes:', js_optimizer_queue @@ -1227,7 +1263,7 @@ try: if opt_level >= 1: if DEBUG: print >> sys.stderr, 'emcc: running pre-closure post-opts' - if DEBUG >= 2: + if DEBUG == '2': # Clean up the syntax a bit final = shared.Building.js_optimizer(final, [], jcache) if DEBUG: save_intermediate('pretty') @@ -1249,7 +1285,7 @@ try: if DEBUG: print >> sys.stderr, 'emcc: running closure' final = shared.Building.closure_compiler(final) if DEBUG: save_intermediate('closure') - elif shared.Settings.RELOOP and not closure and not keep_debug: + elif shared.Settings.RELOOP and not closure and not keep_js_debug: # do this if closure is not enabled (it gives similar speedups), and we do not need to keep debug info around js_optimizer_queue += ['registerize'] |