diff options
Diffstat (limited to 'emcc')
| -rwxr-xr-x | emcc | 39 |
1 files changed, 9 insertions, 30 deletions
@@ -248,6 +248,15 @@ Options that are modified or new in %s include: are compiling to. To run your code, you will need both the .html and the .data. + emcc runs tools/file_packager.py to do the + actual packaging of embedded and preloaded + files. You can run the file packager yourself + if you want, see docs inside that file. You + should then put the output of the file packager + in an emcc --pre-js, so that it executes before + your main compiled code (or run it before in + some other way). + --compression <codec> Compress both the compiled code and embedded/ preloaded files. <codec> should be a triple, @@ -1089,36 +1098,6 @@ try: shared.Building.llvm_opt(in_temp(target_basename + '.bc'), link_opts) if DEBUG: save_intermediate('linktime', 'bc') - # Optimization and lto can add new intrinsics like memcpy that were not present before. We - # are now *after* linking in libc, so we missed our chance to get memcpy - check and add it now - # if necessary - final_symbols = shared.Building.llvm_nm(final) - need_memcpy = False - for symbol in final_symbols.undefs: - if symbol in MEMCPY_ALIASES: - need_memcpy = True - break - has_memcpy = False - for symbol in final_symbols.defs: - if symbol in MEMCPY_ALIASES: - has_memcpy = True - break - if need_memcpy and not has_memcpy: - if DEBUG: print >> sys.stderr, 'memcpy intrinsic added in optimizations, linking in optimized memcpy' - memcpy = in_temp('memcpy.bc') - force_cxx = os.environ.get('EMMAKEN_CXX') - if force_cxx is not None: del os.environ['EMMAKEN_CXX'] # memcpy must be compiled as C - execute([shared.PYTHON, shared.EMCC, shared.path_from_root('system', 'lib', 'libc', 'musl', 'memcpy.c'), '-o', memcpy], stdout=stdout, stderr=stderr) - if force_cxx is not None: os.environ['EMMAKEN_CXX'] = force_cxx - shared.Building.llvm_opt(memcpy, llvm_opts) # optimize it just like normal code; no point in lto though - next = final + '.postrinsics.bc' - shared.Building.link([final, memcpy], next) - final = next - if shared.Settings.ASM_JS: # export it so other library functions etc. can use it - if '_memcpy' not in shared.Settings.EXPORTED_FUNCTIONS: - shared.Settings.EXPORTED_FUNCTIONS.append('_memcpy') - if DEBUG: save_intermediate('postrinsics', 'bc') - # Prepare .ll for Emscripten if not LEAVE_INPUTS_RAW: final = shared.Building.llvm_dis(final, final + '.ll') |