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authorDaniel Friesel <daniel.friesel@uos.de>2021-10-08 14:12:19 +0200
committerDaniel Friesel <daniel.friesel@uos.de>2021-10-08 14:12:19 +0200
commitf7aa7b9e09f81970cae710fdd4a6f12aae375d8b (patch)
tree319dd2831baea91ca6df7d5770973be1c4c3dbd6 /lib/loader
parentf460374f7c9c65e02480453ee9a79c93fc499a77 (diff)
add basic analyze-kconfig script
Diffstat (limited to 'lib/loader')
-rw-r--r--lib/loader/__init__.py1
-rw-r--r--lib/loader/kconfig.py112
2 files changed, 113 insertions, 0 deletions
diff --git a/lib/loader/__init__.py b/lib/loader/__init__.py
index 141c7ca..8f730bb 100644
--- a/lib/loader/__init__.py
+++ b/lib/loader/__init__.py
@@ -19,6 +19,7 @@ from .energytrace import (
EnergyTraceWithLogicAnalyzer,
EnergyTraceWithTimer,
)
+from .kconfig import KConfigAttributes
from .keysight import DLog, KeysightCSV
from .mimosa import MIMOSA
diff --git a/lib/loader/kconfig.py b/lib/loader/kconfig.py
new file mode 100644
index 0000000..1dbebc8
--- /dev/null
+++ b/lib/loader/kconfig.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+
+import kconfiglib
+from frozendict import frozendict
+import json
+import os
+import subprocess
+
+
+class KConfigAttributes:
+ def __init__(self, kconfig_path, datadir):
+ experiments = list()
+ failed_experiments = list()
+ for direntry in os.listdir(datadir):
+ config_path = f"{datadir}/{direntry}/.config"
+ attr_path = f"{datadir}/{direntry}/attributes.json"
+ metadata_path = f"{datadir}/{direntry}/metadata"
+ if os.path.exists(attr_path):
+ experiments.append((config_path, attr_path))
+ elif os.path.exists(config_path):
+ failed_experiments.append(config_path)
+
+ kconf = kconfiglib.Kconfig(kconfig_path)
+ self.kconf = kconf
+
+ self.kconfig_hash = self.file_hash(kconfig_path)
+ self.kconfig_dir = "unknown"
+ if "/" in kconfig_path:
+ self.kconfig_dir = kconfig_path.split("/")[-2]
+
+ self.symbol_names = sorted(
+ map(
+ lambda sym: sym.name,
+ filter(
+ lambda sym: kconfiglib.TYPE_TO_STR[sym.type]
+ in ("bool", "tristate", "int", "string", "hex"),
+ kconf.syms.values(),
+ ),
+ )
+ )
+
+ self.choice_names = sorted(
+ map(lambda choice: choice.name or choice.name_and_loc, kconf.choices)
+ )
+
+ self.choice = dict()
+ self.choice_symbol_names = list()
+ for choice in kconf.choices:
+ self.choice[choice.name or choice.name_and_loc] = choice
+ self.choice_symbol_names.extend(map(lambda sym: sym.name, choice.syms))
+
+ self.symbol = dict()
+ for symbol_name in self.symbol_names:
+ self.symbol[symbol_name] = kconf.syms[symbol_name]
+
+ if int(os.getenv("DFATOOL_KCONF_WITH_CHOICE_NODES", 1)):
+ for sym_name in self.choice_symbol_names:
+ self.symbol_names.remove(sym_name)
+ self.param_names = self.symbol_names + self.choice_names
+ else:
+ self.param_names = self.symbol_names
+
+ self.data = list()
+ self.configs = list()
+ self.failures = list()
+
+ for config_path, attr_path in experiments:
+ self.configs.append(config_path)
+ kconf.load_config(config_path)
+ with open(attr_path, "r") as f:
+ attr = json.load(f)
+
+ param = self._conf_to_param()
+ self.data.append((frozendict(param), attr))
+
+ for config_path in failed_experiments:
+ kconf.load_config(config_path)
+ param = self._conf_to_param()
+ self.failures.append(frozendict(param))
+
+ def _conf_to_param(self):
+ param = dict()
+ for sym_name in self.symbol_names:
+ sym = self.kconf.syms[sym_name]
+ if not sym.visibility and sym.str_value == "":
+ param[sym_name] = None
+ elif kconfiglib.TYPE_TO_STR[sym.type] in ("int", "hex"):
+ try:
+ param[sym_name] = int(sym.str_value, base=0)
+ except ValueError:
+ print(
+ f"Warning: Illegal value for {sym.__repr__()}, defaulting to None"
+ )
+ param[sym_name] = None
+ else:
+ param[sym_name] = sym.str_value
+ for choice in self.choice_names:
+ if self.choice[choice].selection is None:
+ param[choice] = None
+ else:
+ param[choice] = self.choice[choice].selection.name
+ return param
+
+ def file_hash(self, config_file):
+ status = subprocess.run(
+ ["sha256sum", config_file],
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE,
+ universal_newlines=True,
+ )
+ sha256sum = status.stdout.split()[0]
+ return sha256sum