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
