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Code Issues Releases Wiki Activity

fix

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This commit is contained in:
J. Nick Koston
2025-10-17 15:35:51 -10:00
parent 57bf3f968f
commit 293400ee14
1 changed files with 24 additions and 4 deletions
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28
esphome/analyze_memory/__init__.py
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@@ -310,11 +310,19 @@ class MemoryAnalyzer:
"✗ Using system c++filt (objdump_path=%s)", self.objdump_path
)
# Strip GCC optimization suffixes before demangling
# Suffixes like $isra$0, $part$0, $constprop$0 confuse c++filt
symbols_stripped = []
for symbol in symbols:
# Remove GCC optimization markers
stripped = re.sub(r"\$(?:isra|part|constprop)\$\d+", "", symbol)
symbols_stripped.append(stripped)
try:
# Send all symbols to c++filt at once
result = subprocess.run(
[cppfilt_cmd],
input="\n".join(symbols),
input="\n".join(symbols_stripped),
capture_output=True,
text=True,
check=False,
@@ -323,10 +331,22 @@ class MemoryAnalyzer:
demangled_lines = result.stdout.strip().split("\n")
# Map original to demangled names
failed_count = 0
for original, demangled in zip(symbols, demangled_lines):
for original, stripped, demangled in zip(
symbols, symbols_stripped, demangled_lines
):
# If we stripped a suffix, add it back to the demangled name for clarity
if original != stripped:
# Find what was stripped
suffix_match = re.search(
r"(\$(?:isra|part|constprop)\$\d+)", original
)
if suffix_match:
demangled = f"{demangled} [{suffix_match.group(1)}]"
self._demangle_cache[original] = demangled
# Log symbols that failed to demangle (stayed the same)
if original == demangled and original.startswith("_Z"):
# Log symbols that failed to demangle (stayed the same as stripped version)
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])