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preen

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This commit is contained in:
J. Nick Koston
2025-10-17 18:06:13 -10:00
parent 322dc530a9
commit 9cf1fd24fd
4 changed files with 116 additions and 139 deletions
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42
esphome/analyze_memory/__init__.py
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@@ -77,7 +77,7 @@ class MemoryAnalyzer:
readelf_path: str | None = None,
external_components: set[str] | None = None,
idedata: "IDEData | None" = None,
):
) -> None:
"""Initialize memory analyzer.
Args:
@@ -311,15 +311,13 @@ class MemoryAnalyzer:
potential_cppfilt,
)
else:
_LOGGER.info(
"✗ Using system c++filt (objdump_path=%s)", self.objdump_path
)
_LOGGER.info("✗ Using system c++filt (objdump_path=%s)", self.objdump_path)
# Strip GCC optimization suffixes and prefixes before demangling
# Suffixes like $isra$0, $part$0, $constprop$0 confuse c++filt
# Prefixes like _GLOBAL__sub_I_ need to be removed and tracked
symbols_stripped = []
symbols_prefixes = [] # Track removed prefixes
symbols_stripped: list[str] = []
symbols_prefixes: list[str] = [] # Track removed prefixes
for symbol in symbols:
# Remove GCC optimization markers
stripped = re.sub(r"\$(?:isra|part|constprop)\$\d+", "", symbol)
@@ -327,12 +325,11 @@ class MemoryAnalyzer:
# Handle GCC global constructor/initializer prefixes
# _GLOBAL__sub_I_<mangled> -> extract <mangled> for demangling
prefix = ""
if stripped.startswith("_GLOBAL__sub_I_"):
prefix = "_GLOBAL__sub_I_"
stripped = stripped[len(prefix) :]
elif stripped.startswith("_GLOBAL__sub_D_"):
prefix = "_GLOBAL__sub_D_"
stripped = stripped[len(prefix) :]
for gcc_prefix in _GCC_PREFIX_ANNOTATIONS:
if stripped.startswith(gcc_prefix):
prefix = gcc_prefix
stripped = stripped[len(prefix) :]
break
symbols_stripped.append(stripped)
symbols_prefixes.append(prefix)
@@ -405,17 +402,18 @@ class MemoryAnalyzer:
if stripped == demangled and stripped.startswith("_Z"):
failed_count += 1
if failed_count <= 5: # Only log first 5 failures
_LOGGER.warning("Failed to demangle: %s", original[:100])
_LOGGER.warning("Failed to demangle: %s", original)
if failed_count > 0:
_LOGGER.warning(
"Failed to demangle %d/%d symbols using %s",
failed_count,
len(symbols),
cppfilt_cmd,
)
else:
_LOGGER.warning("Successfully demangled all %d symbols", len(symbols))
if failed_count == 0:
_LOGGER.info("Successfully demangled all %d symbols", len(symbols))
return
_LOGGER.warning(
"Failed to demangle %d/%d symbols using %s",
failed_count,
len(symbols),
cppfilt_cmd,
)
@staticmethod
def _restore_symbol_prefix(prefix: str, stripped: str, demangled: str) -> str: