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mirror of https://github.com/esphome/esphome.git synced 2025-10-25 21:23:53 +01:00
This commit is contained in:
J. Nick Koston
2025-10-17 14:40:45 -10:00
parent f011c44130
commit f87c969b43
6 changed files with 381 additions and 254 deletions

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@@ -7,6 +7,7 @@ import logging
from pathlib import Path
import re
import subprocess
from typing import TYPE_CHECKING
from .const import (
CORE_SUBCATEGORY_PATTERNS,
@@ -22,9 +23,65 @@ from .helpers import (
parse_symbol_line,
)
if TYPE_CHECKING:
from esphome.platformio_api import IDEData
_LOGGER = logging.getLogger(__name__)
def get_toolchain_for_platform(platform: str) -> tuple[str | None, str | None]:
"""Get objdump and readelf paths for a given platform.
This function auto-detects the correct toolchain based on the platform name,
using the same detection logic as PlatformIO's IDEData class.
Args:
platform: Platform name (e.g., "esp8266-ard", "esp32-idf", "esp32-c3-idf")
Returns:
Tuple of (objdump_path, readelf_path) or (None, None) if not found/supported
"""
home = Path.home()
platformio_packages = home / ".platformio" / "packages"
# Map platform to toolchain and prefix (same logic as PlatformIO uses)
toolchain = None
prefix = None
if "esp8266" in platform:
toolchain = "toolchain-xtensa"
prefix = "xtensa-lx106-elf"
elif "esp32-c" in platform or "esp32-h" in platform or "esp32-p4" in platform:
# RISC-V variants (C2, C3, C5, C6, H2, P4)
toolchain = "toolchain-riscv32-esp"
prefix = "riscv32-esp-elf"
elif "esp32" in platform:
# Xtensa variants (original, S2, S3)
toolchain = "toolchain-xtensa-esp-elf"
if "s2" in platform:
prefix = "xtensa-esp32s2-elf"
elif "s3" in platform:
prefix = "xtensa-esp32s3-elf"
else:
prefix = "xtensa-esp32-elf"
else:
# Other platforms (RP2040, LibreTiny, etc.) - not supported for ELF analysis
_LOGGER.debug("Platform %s not supported for ELF analysis", platform)
return None, None
# Construct paths (same pattern as IDEData.objdump_path/readelf_path)
toolchain_path = platformio_packages / toolchain / "bin"
objdump_path = toolchain_path / f"{prefix}-objdump"
readelf_path = toolchain_path / f"{prefix}-readelf"
if objdump_path.exists() and readelf_path.exists():
_LOGGER.debug("Found %s toolchain: %s", platform, prefix)
return str(objdump_path), str(readelf_path)
_LOGGER.warning("Toolchain not found at %s", toolchain_path)
return None, None
@dataclass
class MemorySection:
"""Represents a memory section with its symbols."""
@@ -67,11 +124,27 @@ class MemoryAnalyzer:
objdump_path: str | None = None,
readelf_path: str | None = None,
external_components: set[str] | None = None,
idedata: "IDEData | None" = None,
):
"""Initialize memory analyzer.
Args:
elf_path: Path to ELF file to analyze
objdump_path: Path to objdump binary (auto-detected from idedata if not provided)
readelf_path: Path to readelf binary (auto-detected from idedata if not provided)
external_components: Set of external component names
idedata: Optional PlatformIO IDEData object to auto-detect toolchain paths
"""
self.elf_path = Path(elf_path)
if not self.elf_path.exists():
raise FileNotFoundError(f"ELF file not found: {elf_path}")
# Auto-detect toolchain paths from idedata if not provided
if idedata is not None and (objdump_path is None or readelf_path is None):
objdump_path = objdump_path or idedata.objdump_path
readelf_path = readelf_path or idedata.readelf_path
_LOGGER.debug("Using toolchain paths from PlatformIO idedata")
self.objdump_path = objdump_path or "objdump"
self.readelf_path = readelf_path or "readelf"
self.external_components = external_components or set()

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@@ -1,7 +1,6 @@
"""CLI interface for memory analysis with report generation."""
from collections import defaultdict
import subprocess
import sys
from . import MemoryAnalyzer
@@ -313,51 +312,91 @@ def analyze_elf(
def main():
"""CLI entrypoint for memory analysis."""
if len(sys.argv) < 2:
print(
"Usage: python -m esphome.analyze_memory <elf_file> [objdump_path] [readelf_path]"
)
print("\nIf objdump/readelf paths are not provided, you must specify them.")
print("\nExample for ESP8266:")
print(" python -m esphome.analyze_memory firmware.elf \\")
print(
" ~/.platformio/packages/toolchain-xtensa/bin/xtensa-lx106-elf-objdump \\"
)
print(
" ~/.platformio/packages/toolchain-xtensa/bin/xtensa-lx106-elf-readelf"
)
print("\nExample for ESP32:")
print(" python -m esphome.analyze_memory firmware.elf \\")
print(
" ~/.platformio/packages/toolchain-xtensa-esp-elf/bin/xtensa-esp32-elf-objdump \\"
)
print(
" ~/.platformio/packages/toolchain-xtensa-esp-elf/bin/xtensa-esp32-elf-readelf"
)
print("\nExample for ESP32-C3 (RISC-V):")
print(" python -m esphome.analyze_memory firmware.elf \\")
print(
" ~/.platformio/packages/toolchain-riscv32-esp/bin/riscv32-esp-elf-objdump \\"
)
print(
" ~/.platformio/packages/toolchain-riscv32-esp/bin/riscv32-esp-elf-readelf"
)
print("Usage: python -m esphome.analyze_memory <build_directory>")
print("\nAnalyze memory usage from an ESPHome build directory.")
print("The build directory should contain firmware.elf and idedata will be")
print("loaded from ~/.esphome/.internal/idedata/<device>.json")
print("\nExamples:")
print(" python -m esphome.analyze_memory ~/.esphome/build/my-device")
print(" python -m esphome.analyze_memory .esphome/build/my-device")
print(" python -m esphome.analyze_memory my-device # Short form")
sys.exit(1)
elf_file = sys.argv[1]
objdump_path = sys.argv[2] if len(sys.argv) > 2 else None
readelf_path = sys.argv[3] if len(sys.argv) > 3 else None
build_dir = sys.argv[1]
# Load build directory
import json
from pathlib import Path
from esphome.platformio_api import IDEData
build_path = Path(build_dir)
# If no path separator in name, assume it's a device name
if "/" not in build_dir and not build_path.is_dir():
# Try current directory first
cwd_path = Path.cwd() / ".esphome" / "build" / build_dir
if cwd_path.is_dir():
build_path = cwd_path
print(f"Using build directory: {build_path}", file=sys.stderr)
else:
# Fall back to home directory
build_path = Path.home() / ".esphome" / "build" / build_dir
print(f"Using build directory: {build_path}", file=sys.stderr)
if not build_path.is_dir():
print(f"Error: {build_path} is not a directory", file=sys.stderr)
sys.exit(1)
# Find firmware.elf
elf_file = None
for elf_candidate in [
build_path / "firmware.elf",
build_path / ".pioenvs" / build_path.name / "firmware.elf",
]:
if elf_candidate.exists():
elf_file = str(elf_candidate)
break
if not elf_file:
print(f"Error: firmware.elf not found in {build_dir}", file=sys.stderr)
sys.exit(1)
# Find idedata.json - check current directory first, then home
device_name = build_path.name
idedata_candidates = [
Path.cwd() / ".esphome" / "idedata" / f"{device_name}.json",
Path.home() / ".esphome" / "idedata" / f"{device_name}.json",
]
idedata = None
for idedata_path in idedata_candidates:
if idedata_path.exists():
try:
with open(idedata_path, encoding="utf-8") as f:
raw_data = json.load(f)
idedata = IDEData(raw_data)
print(f"Loaded idedata from: {idedata_path}", file=sys.stderr)
break
except (json.JSONDecodeError, OSError) as e:
print(f"Warning: Failed to load idedata: {e}", file=sys.stderr)
if not idedata:
print(
f"Warning: idedata not found (searched {idedata_candidates[0]} and {idedata_candidates[1]})",
file=sys.stderr,
)
try:
report = analyze_elf(elf_file, objdump_path, readelf_path)
analyzer = MemoryAnalyzerCLI(elf_file, idedata=idedata)
analyzer.analyze()
report = analyzer.generate_report()
print(report)
except (subprocess.CalledProcessError, FileNotFoundError, OSError) as e:
except Exception as e:
print(f"Error: {e}", file=sys.stderr)
if "readelf" in str(e) or "objdump" in str(e):
print(
"\nHint: You need to specify the toolchain-specific tools.",
file=sys.stderr,
)
print("See usage above for examples.", file=sys.stderr)
import traceback
traceback.print_exc(file=sys.stderr)
sys.exit(1)

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@@ -412,10 +412,8 @@ def analyze_memory_usage(config: dict[str, Any]) -> None:
idedata = get_idedata(config)
# Get paths to tools
# Get ELF path
elf_path = idedata.firmware_elf_path
objdump_path = idedata.objdump_path
readelf_path = idedata.readelf_path
# Debug logging
_LOGGER.debug("ELF path from idedata: %s", elf_path)
@@ -457,7 +455,10 @@ def analyze_memory_usage(config: dict[str, Any]) -> None:
_LOGGER.debug("Detected external components: %s", external_components)
# Create analyzer and run analysis
analyzer = MemoryAnalyzer(elf_path, objdump_path, readelf_path, external_components)
# Pass idedata to auto-detect toolchain paths
analyzer = MemoryAnalyzer(
elf_path, external_components=external_components, idedata=idedata
)
analyzer.analyze()
# Generate and print report