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decoder.py: allowing to use it live (#9108)

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- avoid ctx repetition and hide some useless fw debug lines
- hide "DECODE IT"
- immediately print stack at closing marker
- check for tool executable at startup

live command line example
>  pyserial-miniterm /dev/ttyUSB0 115200 | \
        path/to/esp8266/Arduino/tools/decoder.py \
            --tool addr2line \
            --toolchain-path path/to/esp8266/Arduino/tools/xtensa-lx106-elf/bin \
            path/to/build.elf
This commit is contained in:
david gauchard 2024-03-31 18:24:25 +02:00 committed by GitHub
parent 75cd58f647
commit 685f2c97ff
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GPG Key ID: B5690EEEBB952194
1 changed files with 12 additions and 1 deletions
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13
tools/decoder.py
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@ -10,6 +10,7 @@ import argparse
import sys import sys
import re import re
import subprocess import subprocess
import shutil
# https://github.com/me-no-dev/EspExceptionDecoder/blob/349d17e4c9896306e2c00b4932be3ba510cad208/src/EspExceptionDecoder.java#L59-L90 # https://github.com/me-no-dev/EspExceptionDecoder/blob/349d17e4c9896306e2c00b4932be3ba510cad208/src/EspExceptionDecoder.java#L59-L90
EXCEPTION_CODES = ( EXCEPTION_CODES = (
@ -104,7 +105,10 @@ def decode_lines(format_addresses, elf, lines):
STACK_LINE_RE = re.compile(r"^[0-9a-f]{8}:\s\s+") STACK_LINE_RE = re.compile(r"^[0-9a-f]{8}:\s\s+")
IGNORE_FIRMWARE_RE = re.compile(r"^(epc1=0x........, |Fatal exception )")
CUT_HERE_STRING = "CUT HERE FOR EXCEPTION DECODER" CUT_HERE_STRING = "CUT HERE FOR EXCEPTION DECODER"
DECODE_IT = "DECODE IT"
EXCEPTION_STRING = "Exception (" EXCEPTION_STRING = "Exception ("
EPC_STRING = "epc1=" EPC_STRING = "epc1="
@ -132,6 +136,8 @@ def decode_lines(format_addresses, elf, lines):
stack_addresses = print_all_addresses(stack_addresses) stack_addresses = print_all_addresses(stack_addresses)
last_stack = line.strip() last_stack = line.strip()
# 3fffffb0: feefeffe feefeffe 3ffe85d8 401004ed # 3fffffb0: feefeffe feefeffe 3ffe85d8 401004ed
elif IGNORE_FIRMWARE_RE.match(line):
continue
elif in_stack and STACK_LINE_RE.match(line): elif in_stack and STACK_LINE_RE.match(line):
_, addrs = line.split(":") _, addrs = line.split(":")
addrs = ANY_ADDR_RE.findall(addrs) addrs = ANY_ADDR_RE.findall(addrs)
@ -163,8 +169,10 @@ def decode_lines(format_addresses, elf, lines):
in_stack = True in_stack = True
# ignore # ignore
elif "<<<stack<<<" in line: elif "<<<stack<<<" in line:
in_stack = False
stack_addresses = print_all_addresses(stack_addresses)
continue continue
elif CUT_HERE_STRING in line: elif CUT_HERE_STRING in line or DECODE_IT in line:
continue continue
else: else:
line = line.strip() line = line.strip()
@ -181,6 +189,9 @@ def select_tool(toolchain_path, tool, func):
path = f"xtensa-lx106-elf-{tool}" path = f"xtensa-lx106-elf-{tool}"
if toolchain_path: if toolchain_path:
path = os.path.join(toolchain_path, path) path = os.path.join(toolchain_path, path)
if not shutil.which(path):
raise FileNotFoundError(path)
def formatter(func, path): def formatter(func, path):
def wrapper(elf, addresses): def wrapper(elf, addresses):