mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-11-14 00:37:21 +00:00
138 lines
5 KiB
Python
138 lines
5 KiB
Python
import json
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class HardwareTargetLoader:
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def __init__(self, env, root_target_scons_dir, target_id):
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self.env = env
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self.all_targets_root_dir = root_target_scons_dir
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self.target_dir = self._getTargetDir(target_id)
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# self.target_id = target_id
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self.layered_target_dirs = []
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self.include_paths = []
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self.sdk_header_paths = []
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self.startup_script = None
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self.linker_script_flash = None
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self.linker_script_ram = None
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self.linker_script_app = None
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self.sdk_symbols = None
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self.linker_dependencies = []
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self.excluded_sources = []
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self.excluded_headers = []
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self.excluded_modules = []
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self._processTargetDefinitions(target_id)
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def _getTargetDir(self, target_id):
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return self.all_targets_root_dir.Dir(f"f{target_id}")
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def _loadDescription(self, target_id):
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target_json_file = self._getTargetDir(target_id).File("target.json")
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if not target_json_file.exists():
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raise Exception(f"Target file {target_json_file} does not exist")
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with open(target_json_file.get_abspath(), "r") as f:
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try:
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vals = json.load(f)
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return vals
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except json.JSONDecodeError as e:
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raise Exception(f"Failed to parse target file {target_json_file}: {e}")
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def _processTargetDefinitions(self, target_id):
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target_dir = self._getTargetDir(target_id)
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self.layered_target_dirs.append(target_dir)
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config = self._loadDescription(target_id)
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for path_list in ("include_paths", "sdk_header_paths"):
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getattr(self, path_list).extend(
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target_dir.Dir(p) for p in config.get(path_list, [])
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)
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self.excluded_sources.extend(config.get("excluded_sources", []))
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self.excluded_headers.extend(config.get("excluded_headers", []))
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self.excluded_modules.extend(config.get("excluded_modules", []))
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file_attrs = (
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# (name, use_src_node)
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("startup_script", True),
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("linker_script_flash", True),
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("linker_script_ram", True),
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("linker_script_app", True),
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("sdk_symbols", True),
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)
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for attr_name, use_src_node in file_attrs:
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if (val := config.get(attr_name)) and not getattr(self, attr_name):
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node = target_dir.File(val)
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if use_src_node:
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node = node.srcnode()
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# print(f"Got node {node}, {node.path} for {attr_name}")
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setattr(self, attr_name, node)
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for attr_name in ("linker_dependencies",):
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if (val := config.get(attr_name)) and not getattr(self, attr_name):
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setattr(self, attr_name, val)
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if inherited_target := config.get("inherit", None):
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self._processTargetDefinitions(inherited_target)
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def gatherSources(self):
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sources = []
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if self.startup_script:
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sources.append(self.startup_script)
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seen_filenames = set(self.excluded_sources)
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# print("Layers: ", self.layered_target_dirs)
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for target_dir in self.layered_target_dirs:
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accepted_sources = list(
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filter(
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lambda f: f.name not in seen_filenames,
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self.env.GlobRecursive("*.c", target_dir),
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)
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)
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seen_filenames.update(f.name for f in accepted_sources)
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sources.extend(accepted_sources)
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# print(f"Found {len(sources)} sources: {list(f.path for f in sources)}")
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return list(f.get_path(self.all_targets_root_dir) for f in sources)
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def gatherSdkHeaders(self):
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sdk_headers = []
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seen_sdk_headers = set(self.excluded_headers)
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for sdk_path in self.sdk_header_paths:
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# dirty, but fast - exclude headers from overlaid targets by name
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# proper way would be to use relative paths, but names will do for now
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for header in self.env.GlobRecursive("*.h", sdk_path, "*_i.h"):
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if header.name not in seen_sdk_headers:
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seen_sdk_headers.add(header.name)
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sdk_headers.append(header)
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return sdk_headers
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def ConfigureForTarget(env, target_id):
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target_loader = HardwareTargetLoader(env, env["TARGETS_ROOT"], target_id)
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env.Replace(
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TARGET_CFG=target_loader,
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SDK_DEFINITION=target_loader.sdk_symbols,
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SKIP_MODULES=target_loader.excluded_modules,
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)
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env.Append(
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CPPPATH=target_loader.include_paths,
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SDK_HEADERS=target_loader.gatherSdkHeaders(),
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)
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def ApplyLibFlags(env):
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flags_to_apply = env["FW_LIB_OPTS"].get(
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env.get("FW_LIB_NAME"),
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env["FW_LIB_OPTS"]["Default"],
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)
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# print("Flags for ", env.get("FW_LIB_NAME", "Default"), flags_to_apply)
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env.MergeFlags(flags_to_apply)
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def generate(env):
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env.AddMethod(ConfigureForTarget)
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env.AddMethod(ApplyLibFlags)
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def exists(env):
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return True
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