def main(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument('--strip', help='The strip binary to run', metavar='PATH') parser.add_argument('--unstripped-file', help='Executable file produced by linking command', metavar='FILE') parser.add_argument('--map-file', help=('Use --Wl,-Map to generate a map file. Will be ' 'gzipped if extension ends with .gz'), metavar='FILE') parser.add_argument('--output', required=True, help='Final output executable file', metavar='FILE') parser.add_argument('command', nargs='+', help='Linking command') args = parser.parse_args() # Work-around for gold being slow-by-default. http://crbug.com/632230 fast_env = dict(os.environ) fast_env['LC_ALL'] = 'C' result = wrapper_utils.RunLinkWithOptionalMapFile(args.command, env=fast_env, map_file=args.map_file) if result != 0: return result # Finally, strip the linked executable (if desired). if args.strip: result = subprocess.call(CommandToRun([ args.strip, '--strip-unneeded', '-o', args.output, args.unstripped_file ])) return result
def main(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument('--strip', help='The strip binary to run', metavar='PATH') parser.add_argument('--unstripped-file', help='Executable file produced by linking command', metavar='FILE') parser.add_argument('--map-file', help=('Use --Wl,-Map to generate a map file. Will be ' 'gzipped if extension ends with .gz'), metavar='FILE') parser.add_argument('--dwp', help=('The dwp binary to run'), metavar='FILE') parser.add_argument('--output', required=True, help='Final output executable file', metavar='FILE') parser.add_argument('command', nargs='+', help='Linking command') args = parser.parse_args() # Work-around for gold being slow-by-default. http://crbug.com/632230 fast_env = dict(os.environ) fast_env['LC_ALL'] = 'C' result = wrapper_utils.RunLinkWithOptionalMapFile(args.command, env=fast_env, map_file=args.map_file) if result != 0: return result # If dwp is set, then package debug info for this exe. dwp_proc = None if args.dwp: exe_file = args.output if args.unstripped_file: exe_file = args.unstripped_file # Suppress output here because it doesn't seem to be useful. The most # common error is a segfault, which will happen if files are missing. with open(os.devnull, "w") as devnull: dwp_proc = subprocess.Popen(wrapper_utils.CommandToRun( [args.dwp, '-e', exe_file, '-o', exe_file + '.dwp']), stdout=devnull, stderr=subprocess.STDOUT) # Finally, strip the linked executable (if desired). if args.strip: result = subprocess.call( CommandToRun([args.strip, '-o', args.output, args.unstripped_file])) if dwp_proc: dwp_result = dwp_proc.wait() if dwp_result != 0: sys.stderr.write( 'dwp failed with error code {}\n'.format(dwp_result)) return dwp_result return result
def main(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument('--strip', help='The strip binary to run', metavar='PATH') parser.add_argument('--unstripped-file', help='Executable file produced by linking command', metavar='FILE') parser.add_argument('--map-file', help=('Use --Wl,-Map to generate a map file. Will be ' 'gzipped if extension ends with .gz'), metavar='FILE') parser.add_argument('--dwp', help=('The dwp binary to run'), metavar='FILE') parser.add_argument('--output', required=True, help='Final output executable file', metavar='FILE') parser.add_argument('command', nargs='+', help='Linking command') args = parser.parse_args() generate_dwp = '--generate-dwp' in args.command if generate_dwp: args.command.remove('--generate-dwp') # Work-around for gold being slow-by-default. http://crbug.com/632230 fast_env = dict(os.environ) fast_env['LC_ALL'] = 'C' result = wrapper_utils.RunLinkWithOptionalMapFile(args.command, env=fast_env, map_file=args.map_file) if result != 0: return result # If dwp is set, then package debug info for this exe. dwp_proc = None if generate_dwp: if not args.dwp: parser.error('--generate-dwp requireds --dwp') exe_file = args.output if args.unstripped_file: exe_file = args.unstripped_file dwp_proc = subprocess.Popen( wrapper_utils.CommandToRun( [args.dwp, '-e', exe_file, '-o', args.output + '.dwp'])) # Finally, strip the linked executable (if desired). if args.strip: result = subprocess.call( CommandToRun([args.strip, '-o', args.output, args.unstripped_file])) if dwp_proc: dwp_result = dwp_proc.wait() if dwp_result != 0: return dwp_result return result
def main(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument('--readelf', required=True, help='The readelf binary to run', metavar='PATH') parser.add_argument('--nm', required=True, help='The nm binary to run', metavar='PATH') parser.add_argument('--strip', help='The strip binary to run', metavar='PATH') parser.add_argument('--sofile', required=True, help='Shared object file produced by linking command', metavar='FILE') parser.add_argument('--tocfile', required=True, help='Output table-of-contents file', metavar='FILE') parser.add_argument('--map-file', help=('Use --Wl,-Map to generate a map file. Will be ' 'gzipped if extension ends with .gz'), metavar='FILE') parser.add_argument('--output', required=True, help='Final output shared object file', metavar='FILE') parser.add_argument('--resource-whitelist', help='Merge all resource whitelists into a single file.', metavar='PATH') parser.add_argument('command', nargs='+', help='Linking command') args = parser.parse_args() # Work-around for gold being slow-by-default. http://crbug.com/632230 fast_env = dict(os.environ) fast_env['LC_ALL'] = 'C' if args.resource_whitelist: whitelist_candidates = wrapper_utils.ResolveRspLinks(args.command) wrapper_utils.CombineResourceWhitelists( whitelist_candidates, args.resource_whitelist) # First, run the actual link. command = wrapper_utils.CommandToRun(args.command) result = wrapper_utils.RunLinkWithOptionalMapFile(command, env=fast_env, map_file=args.map_file) if result != 0: return result # Next, generate the contents of the TOC file. result, toc = CollectTOC(args) if result != 0: return result # If there is an existing TOC file with identical contents, leave it alone. # Otherwise, write out the TOC file. UpdateTOC(args.tocfile, toc) # Finally, strip the linked shared object file (if desired). if args.strip: result = subprocess.call(wrapper_utils.CommandToRun( [args.strip, '--strip-unneeded', '-o', args.output, args.sofile])) return result
def main(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument('--readelf', required=True, help='The readelf binary to run', metavar='PATH') parser.add_argument('--nm', required=True, help='The nm binary to run', metavar='PATH') parser.add_argument('--strip', help='The strip binary to run', metavar='PATH') parser.add_argument('--sofile', required=True, help='Shared object file produced by linking command', metavar='FILE') parser.add_argument('--tocfile', required=True, help='Output table-of-contents file', metavar='FILE') parser.add_argument('--map-file', help=('Use --Wl,-Map to generate a map file. Will be ' 'gzipped if extension ends with .gz'), metavar='FILE') parser.add_argument('--output', required=True, help='Final output shared object file', metavar='FILE') parser.add_argument('command', nargs='+', help='Linking command') args = parser.parse_args() # Work-around for gold being slow-by-default. http://crbug.com/632230 fast_env = dict(os.environ) fast_env['LC_ALL'] = 'C' # Extract the --link-only argument, which goes for a ride through ldflags into # the command, but is meant to be intercepted by this wrapper script (not # passed to the linker). https://crbug.com/954311 tracks finding a better way # to plumb this argument. link_only = '--link-only' in args.command if link_only: args.command.remove('--link-only') # First, run the actual link. command = wrapper_utils.CommandToRun(args.command) result = wrapper_utils.RunLinkWithOptionalMapFile(command, env=fast_env, map_file=args.map_file) if result != 0: return result # If only linking, we are likely generating a partitioned .so that will be # split apart later. In that case: # # - The TOC file optimization isn't useful, because the partition libraries # must always be re-extracted if the combined library changes (and nothing # should be depending on the combined library's dynamic symbol table). # - Stripping isn't necessary, because the combined library is not used in # production or published. # # Both of these operations could still be done, they're needless work, and # tools would need to be updated to handle and/or not complain about # partitioned libraries. Instead, to keep Ninja happy, simply create dummy # files for the TOC and stripped lib. if link_only: with open(args.output, 'w'): pass with open(args.tocfile, 'w'): pass return 0 # Next, generate the contents of the TOC file. result, toc = CollectTOC(args) if result != 0: return result # If there is an existing TOC file with identical contents, leave it alone. # Otherwise, write out the TOC file. UpdateTOC(args.tocfile, toc) # Finally, strip the linked shared object file (if desired). if args.strip: result = subprocess.call( wrapper_utils.CommandToRun( [args.strip, '-o', args.output, args.sofile])) return result
def main(): parser = argparse.ArgumentParser(description=__doc__) parser.add_argument('--readelf', required=True, help='The readelf binary to run', metavar='PATH') parser.add_argument('--nm', required=True, help='The nm binary to run', metavar='PATH') parser.add_argument('--strip', help='The strip binary to run', metavar='PATH') parser.add_argument('--dwp', help='The dwp binary to run', metavar='PATH') parser.add_argument('--sofile', required=True, help='Shared object file produced by linking command', metavar='FILE') parser.add_argument('--tocfile', required=True, help='Output table-of-contents file', metavar='FILE') parser.add_argument('--map-file', help=('Use --Wl,-Map to generate a map file. Will be ' 'gzipped if extension ends with .gz'), metavar='FILE') parser.add_argument('--output', required=True, help='Final output shared object file', metavar='FILE') parser.add_argument('command', nargs='+', help='Linking command') args = parser.parse_args() # Work-around for gold being slow-by-default. http://crbug.com/632230 fast_env = dict(os.environ) fast_env['LC_ALL'] = 'C' # Extract flags passed through ldflags but meant for this script. # https://crbug.com/954311 tracks finding a better way to plumb these. link_only = InterceptFlag('--link-only', args.command) collect_inputs_only = InterceptFlag('--collect-inputs-only', args.command) generate_dwp = InterceptFlag('--generate-dwp', args.command) # If only linking, we are likely generating a partitioned .so that will be # split apart later. In that case: # # - The TOC file optimization isn't useful, because the partition libraries # must always be re-extracted if the combined library changes (and nothing # should be depending on the combined library's dynamic symbol table). # - Stripping isn't necessary, because the combined library is not used in # production or published. # # Both of these operations could still be done, they're needless work, and # tools would need to be updated to handle and/or not complain about # partitioned libraries. Instead, to keep Ninja happy, simply create dummy # files for the TOC and stripped lib. if link_only or collect_inputs_only: open(args.output, 'w').close() open(args.tocfile, 'w').close() # Instead of linking, records all inputs to a file. This is used by # enable_resource_allowlist_generation in order to avoid needing to # link (which is slow) to build the resources whitelist. if collect_inputs_only: with open(args.sofile, 'w') as f: CollectInputs(f, args.command) if args.map_file: open(args.map_file, 'w').close() return 0 # First, run the actual link. command = wrapper_utils.CommandToRun(args.command) result = wrapper_utils.RunLinkWithOptionalMapFile(command, env=fast_env, map_file=args.map_file) if result != 0 or link_only: return result # If dwp is set, then package debug info for this SO. dwp_proc = None if generate_dwp: if not args.dwp: parser.error('--generate-dwp requireds --dwp') dwp_proc = subprocess.Popen( wrapper_utils.CommandToRun( [args.dwp, '-e', args.sofile, '-o', args.output + '.dwp'])) # Next, generate the contents of the TOC file. result, toc = CollectTOC(args) if result != 0: return result # If there is an existing TOC file with identical contents, leave it alone. # Otherwise, write out the TOC file. UpdateTOC(args.tocfile, toc) # Finally, strip the linked shared object file (if desired). if args.strip: result = subprocess.call( wrapper_utils.CommandToRun( [args.strip, '-o', args.output, args.sofile])) if dwp_proc: dwp_result = dwp_proc.wait() if dwp_result != 0: return dwp_result return result