def parse_link_command(self, link_command: str, link_txt_path: str) -> None:
link_args = link_command.split()
output_path = None
inputs = []
if self.conf.is_ninja:
base_dir = self.conf.build_root
else:
base_dir = os.path.join(os.path.dirname(link_txt_path), '..', '..')
i = 0
compilation = False
while i < len(link_args):
arg = link_args[i]
if arg == '-o':
new_output_path = link_args[i + 1]
if output_path and new_output_path and output_path != new_output_path:
raise RuntimeError(
"Multiple output paths for a link command ('{}' and '{}'): {}".format(
output_path, new_output_path, link_command))
output_path = new_output_path
if self.conf.is_ninja and is_object_file(output_path):
compilation = True
i += 1
elif arg == '--shared_library_suffix':
# Skip the next argument.
i += 1
elif not arg.startswith('@rpath/'):
if is_object_file(arg):
node = self.dep_graph.find_or_create_node(
os.path.abspath(os.path.join(base_dir, arg)))
inputs.append(node.path)
elif is_shared_library(arg):
node = self.dep_graph.find_or_create_node(
os.path.abspath(os.path.join(base_dir, arg)),
source_str=link_txt_path)
inputs.append(node.path)
i += 1
if self.conf.is_ninja and compilation:
# Ignore compilation commands. We are interested in linking commands only at this point.
return
if not output_path:
if self.conf.is_ninja:
return
raise RuntimeError("Could not find output path for link command: %s" % link_command)
if not os.path.isabs(output_path):
output_path = os.path.abspath(os.path.join(base_dir, output_path))
output_node = self.dep_graph.find_or_create_node(output_path, source_str=link_txt_path)
output_node.validate_existence()
for input_node in inputs:
dependency_node = self.dep_graph.find_or_create_node(input_node)
if output_node is dependency_node:
raise RuntimeError(
("Cannot add a dependency from a node to itself: %s. "
"Parsed from command: %s") % (output_node, link_command))
output_node.add_dependency(dependency_node)
output_node.set_link_command(link_args)
def resolve_dependent_rel_path(self, rel_path: str) -> str:
if os.path.isabs(rel_path):
return rel_path
if is_object_file(rel_path):
return os.path.join(self.conf.build_root, rel_path)
raise RuntimeError(
"Don't know how to resolve relative path of a 'dependent': {}".
format(rel_path))