Added coredump user defined variable into coredump Closes IDF-44 See merge request espressif/esp-idf!8730
1808 lines
78 KiB
Python
Executable file
1808 lines
78 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# ESP32 core dump Utility
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from __future__ import print_function
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from __future__ import unicode_literals
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from __future__ import division
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from hashlib import sha256
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import sys
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try:
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from builtins import zip
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from builtins import str
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from builtins import range
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from past.utils import old_div
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from builtins import object
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except ImportError:
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print('Import has failed probably because of the missing "future" package. Please install all the packages for '
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'interpreter {} from the $IDF_PATH/requirements.txt file.'.format(sys.executable))
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sys.exit(1)
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import os
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import argparse
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import subprocess
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import tempfile
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import struct
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import errno
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import base64
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import binascii
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import logging
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import re
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idf_path = os.getenv('IDF_PATH')
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if idf_path:
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sys.path.insert(0, os.path.join(idf_path, 'components', 'esptool_py', 'esptool'))
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try:
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import esptool
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except ImportError:
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print("esptool is not found! Set proper $IDF_PATH in environment.")
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sys.exit(2)
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__version__ = "0.4-dev"
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if os.name == 'nt':
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CLOSE_FDS = False
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else:
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CLOSE_FDS = True
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INVALID_CAUSE_VALUE = 0xFFFF
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# Exception cause dictionary to get translation of exccause register
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# From 4.4.1.5 table 4-64 Exception Causes of Xtensa
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# Instruction Set Architecture (ISA) Reference Manual
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xtensa_exception_cause_dict = {
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0: ("IllegalInstructionCause", "Illegal instruction"),
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1: ("SyscallCause", "SYSCALL instruction"),
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2: ("InstructionFetchErrorCause", "Processor internal physical address or data error during instruction fetch. (See EXCVADDR for more information)"),
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3: ("LoadStoreErrorCause", "Processor internal physical address or data error during load or store. (See EXCVADDR for more information)"),
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4: ("Level1InterruptCause", "Level-1 interrupt as indicated by set level-1 bits in the INTERRUPT register"),
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5: ("AllocaCause", "MOVSP instruction, if caller`s registers are not in the register file"),
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6: ("IntegerDivideByZeroCause", "QUOS: QUOU, REMS: or REMU divisor operand is zero"),
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8: ("PrivilegedCause", "Attempt to execute a privileged operation when CRING ? 0"),
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9: ("LoadStoreAlignmentCause", "Load or store to an unaligned address. (See EXCVADDR for more information)"),
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12: ("InstrPIFDataErrorCause", "PIF data error during instruction fetch. (See EXCVADDR for more information)"),
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13: ("LoadStorePIFDataErrorCause", "Synchronous PIF data error during LoadStore access. (See EXCVADDR for more information)"),
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14: ("InstrPIFAddrErrorCause", "PIF address error during instruction fetch. (See EXCVADDR for more information)"),
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15: ("LoadStorePIFAddrErrorCause", "Synchronous PIF address error during LoadStore access. (See EXCVADDR for more information)"),
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16: ("InstTLBMissCause", "Error during Instruction TLB refill. (See EXCVADDR for more information)"),
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17: ("InstTLBMultiHitCause", "Multiple instruction TLB entries matched. (See EXCVADDR for more information)"),
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18: ("InstFetchPrivilegeCause", "An instruction fetch referenced a virtual address at a ring level less than CRING. (See EXCVADDR for more information)"),
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20: ("InstFetchProhibitedCause", "An instruction fetch referenced a page mapped with an attribute that does not permit instruction fetch (EXCVADDR)."),
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24: ("LoadStoreTLBMissCause", "Error during TLB refill for a load or store. (See EXCVADDR for more information)"),
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25: ("LoadStoreTLBMultiHitCause", "Multiple TLB entries matched for a load or store. (See EXCVADDR for more information)"),
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26: ("LoadStorePrivilegeCause", "A load or store referenced a virtual address at a ring level less than CRING. (See EXCVADDR for more information)"),
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28: ("LoadProhibitedCause", "A load referenced a page mapped with an attribute that does not permit loads. (See EXCVADDR for more information)"),
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29: ("StoreProhibitedCause", "A store referenced a page mapped with an attribute that does not permit stores [Region Protection Option or MMU Option]."),
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32: ("Coprocessor0Disabled", "Coprocessor 0 instruction when cp0 disabled"),
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33: ("Coprocessor1Disabled", "Coprocessor 1 instruction when cp1 disabled"),
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34: ("Coprocessor2Disabled", "Coprocessor 2 instruction when cp2 disabled"),
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35: ("Coprocessor3Disabled", "Coprocessor 3 instruction when cp3 disabled"),
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36: ("Coprocessor4Disabled", "Coprocessor 4 instruction when cp4 disabled"),
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37: ("Coprocessor5Disabled", "Coprocessor 5 instruction when cp5 disabled"),
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38: ("Coprocessor6Disabled", "Coprocessor 6 instruction when cp6 disabled"),
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39: ("Coprocessor7Disabled", "Coprocessor 7 instruction when cp7 disabled"),
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INVALID_CAUSE_VALUE: ("InvalidCauseRegister", "Invalid EXCCAUSE register value or current task is broken and was skipped")}
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class ESPCoreDumpError(RuntimeError):
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"""Core dump runtime error class
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"""
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def __init__(self, message):
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"""Constructor for core dump error
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"""
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super(ESPCoreDumpError, self).__init__(message)
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class BinStruct(object):
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"""Binary structure representation
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Subclasses must specify actual structure layout using 'fields' and 'format' members.
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For example, the following subclass represents structure with two fields:
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f1 of size 2 bytes and 4 bytes f2. Little endian.
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class SomeStruct(BinStruct):
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fields = ("f1",
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"f2")
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format = "<HL"
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Then subclass can be used to initialize fields of underlaying structure and convert it to binary representation:
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f = open('some_struct.bin', 'wb')
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s = SomeStruct()
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s.f1 = 1
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s.f2 = 10
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f.write(s.dump())
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f.close()
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"""
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def __init__(self, buf=None):
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"""Base constructor for binary structure objects
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"""
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if buf is None:
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buf = b'\0' * self.sizeof()
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fields = struct.unpack(self.__class__.format, buf[:self.sizeof()])
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self.__dict__.update(zip(self.__class__.fields, fields))
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def sizeof(self):
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"""Returns the size of the structure represented by specific subclass
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"""
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return struct.calcsize(self.__class__.format)
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def dump(self):
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"""Returns binary representation of structure
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"""
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keys = self.__class__.fields
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return struct.pack(self.__class__.format, *(self.__dict__[k] for k in keys))
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class Elf32FileHeader(BinStruct):
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"""ELF32 file header
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"""
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fields = ("e_ident",
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"e_type",
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"e_machine",
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"e_version",
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"e_entry",
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"e_phoff",
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"e_shoff",
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"e_flags",
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"e_ehsize",
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"e_phentsize",
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"e_phnum",
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"e_shentsize",
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"e_shnum",
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"e_shstrndx")
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format = "<16sHHLLLLLHHHHHH"
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def __init__(self, buf=None):
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"""Constructor for ELF32 file header structure
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"""
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super(Elf32FileHeader, self).__init__(buf)
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if buf is None:
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# Fill in sane ELF header for LSB32
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self.e_ident = b"\x7fELF\1\1\1\0\0\0\0\0\0\0\0\0"
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self.e_version = ESPCoreDumpElfFile.EV_CURRENT
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self.e_ehsize = self.sizeof()
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class Elf32ProgramHeader(BinStruct):
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"""ELF32 program header
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"""
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fields = ("p_type",
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"p_offset",
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"p_vaddr",
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"p_paddr",
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"p_filesz",
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"p_memsz",
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"p_flags",
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"p_align")
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format = "<LLLLLLLL"
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class Elf32NoteDesc(object):
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"""ELF32 note descriptor
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"""
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def __init__(self, name, type, desc):
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"""Constructor for ELF32 note descriptor
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"""
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self.name = name
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self.type = type
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self.desc = desc
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def dump(self):
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"""Returns binary representation of ELF32 note descriptor
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"""
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nm_buf = bytearray(self.name, encoding='ascii') + b'\0'
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hdr = struct.pack("<LLL", len(nm_buf), len(self.desc), self.type)
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# pad for 4 byte alignment
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name = nm_buf + ((4 - len(nm_buf)) % 4) * b'\0'
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desc = self.desc + ((4 - len(self.desc)) % 4) * b'\0'
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return hdr + name + desc
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def read(self, data):
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"""Reads ELF32 note descriptor
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"""
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hdr_sz = struct.calcsize("<LLL")
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nm_len,desc_len,self.type = struct.unpack("<LLL", data[:hdr_sz])
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nm_len_a = nm_len + ((4 - nm_len) % 4)
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self.name = struct.unpack("<%ds" % (nm_len - 1), data[hdr_sz:hdr_sz + nm_len - 1])[0].decode('ascii')
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self.desc = data[hdr_sz + nm_len_a:hdr_sz + nm_len_a + desc_len]
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desc_len_a = desc_len + ((4 - desc_len) % 4)
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return hdr_sz + nm_len_a + desc_len_a
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class XtensaPrStatus(BinStruct):
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"""Xtensa program status structure"""
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fields = ("si_signo", "si_code", "si_errno",
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"pr_cursig",
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"pr_pad0",
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"pr_sigpend",
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"pr_sighold",
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"pr_pid",
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"pr_ppid",
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"pr_pgrp",
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"pr_sid",
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"pr_utime",
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"pr_stime",
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"pr_cutime",
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"pr_cstime")
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format = "<3LHHLLLLLLQQQQ"
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class EspCoreDumpTaskStatus(BinStruct):
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"""Core dump status structure"""
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# task status flags for note
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TASK_STATUS_CORRECT = 0x00
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TASK_STATUS_TCB_CORRUPTED = 0x01
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TASK_STATUS_STACK_CORRUPTED = 0x02
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fields = ("task_index",
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"task_flags",
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"task_tcb_addr",
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"task_stack_start",
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"task_stack_len",
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"task_name")
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format = "<LLLLL16s"
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class ESPCoreDumpSegment(esptool.ImageSegment):
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""" Wrapper class for a program segment in core ELF file, has a segment
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type and flags as well as the common properties of an ImageSegment.
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"""
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# segment flags
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PF_X = 0x1 # Execute
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PF_W = 0x2 # Write
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PF_R = 0x4 # Read
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def __init__(self, addr, data, type, flags):
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"""Constructor for program segment
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"""
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super(ESPCoreDumpSegment, self).__init__(addr, data)
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self.flags = flags
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self.type = type
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def __repr__(self):
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"""Returns string representation of program segment
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"""
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return "%s %s %s" % (self.type, self.attr_str(), super(ESPCoreDumpSegment, self).__repr__())
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def attr_str(self):
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"""Returns string representation of program segment attributes
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"""
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str = ''
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if self.flags & self.PF_R:
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str += 'R'
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else:
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str += ' '
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if self.flags & self.PF_W:
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str += 'W'
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else:
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str += ' '
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if self.flags & self.PF_X:
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str += 'X'
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else:
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str += ' '
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return str
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class ESPCoreDumpSection(esptool.ELFSection):
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""" Wrapper class for a section in core ELF file, has a section
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flags as well as the common properties of an esptool.ELFSection.
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"""
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# section flags
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SHF_WRITE = 0x1
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SHF_ALLOC = 0x2
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SHF_EXECINSTR = 0x4
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def __init__(self, name, addr, data, flags):
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"""Constructor for section
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"""
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super(ESPCoreDumpSection, self).__init__(name, addr, data)
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self.flags = flags
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def __repr__(self):
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"""Returns string representation of section
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"""
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return "%s %s" % (super(ESPCoreDumpSection, self).__repr__(), self.attr_str())
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def attr_str(self):
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"""Returns string representation of section attributes
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"""
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str = "R"
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if self.flags & self.SHF_WRITE:
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str += 'W'
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else:
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str += ' '
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if self.flags & self.SHF_EXECINSTR:
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str += 'X'
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else:
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str += ' '
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if self.flags & self.SHF_ALLOC:
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str += 'A'
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else:
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str += ' '
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return str
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class ESPCoreDumpElfFile(esptool.ELFFile):
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""" Wrapper class for core dump ELF file
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"""
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# extra regs IDs used in EXTRA_INFO note
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REG_EXCCAUSE_IDX = 0
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REG_EXCVADDR_IDX = 1
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REG_EPS2_IDX = 2
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REG_EPS3_IDX = 3
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REG_EPS4_IDX = 4
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REG_EPS5_IDX = 5
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REG_EPS6_IDX = 6
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REG_EPS7_IDX = 7
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REG_EPC1_IDX = 8
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REG_EPC2_IDX = 9
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REG_EPC3_IDX = 10
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REG_EPC4_IDX = 11
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REG_EPC5_IDX = 12
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REG_EPC6_IDX = 13
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REG_EPC7_IDX = 14
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# ELF file type
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ET_NONE = 0x0 # No file type
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ET_REL = 0x1 # Relocatable file
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ET_EXEC = 0x2 # Executable file
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ET_DYN = 0x3 # Shared object file
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ET_CORE = 0x4 # Core file
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# ELF file version
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EV_NONE = 0x0
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EV_CURRENT = 0x1
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# ELF file machine type
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EM_NONE = 0x0
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EM_XTENSA = 0x5E
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# section types
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SEC_TYPE_PROGBITS = 0x01
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SEC_TYPE_STRTAB = 0x03
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# special section index
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SHN_UNDEF = 0x0
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# program segment types
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PT_NULL = 0x0
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PT_LOAD = 0x1
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PT_DYNAMIC = 0x2
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PT_INTERP = 0x3
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PT_NOTE = 0x4
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PT_SHLIB = 0x5
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PT_PHDR = 0x6
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def __init__(self, name=None):
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"""Constructor for core dump ELF file
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"""
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if name:
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super(ESPCoreDumpElfFile, self).__init__(name)
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else:
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self.sections = []
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self.program_segments = []
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self.aux_segments = []
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self.e_type = self.ET_NONE
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self.e_machine = self.EM_NONE
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def _read_elf_file(self, f):
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"""Reads core dump from ELF file
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"""
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# read the ELF file header
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LEN_FILE_HEADER = 0x34
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try:
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header = f.read(LEN_FILE_HEADER)
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(ident,type,machine,_version,
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self.entrypoint,phoff,shoff,_flags,
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_ehsize, phentsize,phnum,_shentsize,
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shnum,shstrndx) = struct.unpack("<16sHHLLLLLHHHHHH", header)
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except struct.error as e:
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raise ESPCoreDumpError("Failed to read a valid ELF header from %s: %s" % (f.name, e))
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if bytearray([ident[0]]) != b'\x7f' or ident[1:4] != b'ELF':
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raise ESPCoreDumpError("%s has invalid ELF magic header" % f.name)
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if machine != self.EM_XTENSA:
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raise ESPCoreDumpError("%s does not appear to be an Xtensa ELF file. e_machine=%04x" % (f.name, machine))
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self.e_type = type
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self.e_machine = machine
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self.sections = []
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self.program_segments = []
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self.aux_segments = []
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if shnum > 0:
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self._read_sections(f, shoff, shstrndx)
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if phnum > 0:
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self._read_program_segments(f, phoff, phentsize, phnum)
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def _read_sections(self, f, section_header_offs, shstrndx):
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"""Reads core dump sections from ELF file
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"""
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f.seek(section_header_offs)
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section_header = f.read()
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LEN_SEC_HEADER = 0x28
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if len(section_header) == 0:
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raise ESPCoreDumpError("No section header found at offset %04x in ELF file." % section_header_offs)
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if len(section_header) % LEN_SEC_HEADER != 0:
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logging.warning('Unexpected ELF section header length %04x is not mod-%02x' % (len(section_header),LEN_SEC_HEADER))
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# walk through the section header and extract all sections
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section_header_offsets = range(0, len(section_header), LEN_SEC_HEADER)
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def read_section_header(offs):
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name_offs,sec_type,flags,lma,sec_offs,size = struct.unpack_from("<LLLLLL", section_header[offs:])
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return (name_offs, sec_type, flags, lma, size, sec_offs)
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all_sections = [read_section_header(offs) for offs in section_header_offsets]
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prog_sections = [s for s in all_sections if s[1] == esptool.ELFFile.SEC_TYPE_PROGBITS]
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# search for the string table section
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if not shstrndx * LEN_SEC_HEADER in section_header_offsets:
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raise ESPCoreDumpError("ELF file has no STRTAB section at shstrndx %d" % shstrndx)
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_,sec_type,_,_,sec_size,sec_offs = read_section_header(shstrndx * LEN_SEC_HEADER)
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if sec_type != esptool.ELFFile.SEC_TYPE_STRTAB:
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logging.warning('ELF file has incorrect STRTAB section type 0x%02x' % sec_type)
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f.seek(sec_offs)
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string_table = f.read(sec_size)
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# build the real list of ELFSections by reading the actual section names from the
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# string table section, and actual data for each section from the ELF file itself
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def lookup_string(offs):
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raw = string_table[offs:]
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return raw[:raw.index(b'\x00')]
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def read_data(offs,size):
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f.seek(offs)
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return f.read(size)
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prog_sections = [ESPCoreDumpSection(lookup_string(n_offs), lma, read_data(offs, size), flags)
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for (n_offs, _type, flags, lma, size, offs) in prog_sections if lma != 0]
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self.sections = prog_sections
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def _read_program_segments(self, f, seg_table_offs, entsz, num):
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"""Reads core dump program segments from ELF file
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"""
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f.seek(seg_table_offs)
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seg_table = f.read(entsz * num)
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LEN_SEG_HEADER = 0x20
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if len(seg_table) == 0:
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raise ESPCoreDumpError("No program header table found at offset %04x in ELF file." % seg_table_offs)
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if len(seg_table) % LEN_SEG_HEADER != 0:
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logging.warning('Unexpected ELF program header table length %04x is not mod-%02x' % (len(seg_table),LEN_SEG_HEADER))
|
|
# walk through the program segment table and extract all segments
|
|
seg_table_offs = range(0, len(seg_table), LEN_SEG_HEADER)
|
|
|
|
def read_program_header(offs):
|
|
type,offset,vaddr,_paddr,filesz,_memsz,flags,_align = struct.unpack_from("<LLLLLLLL", seg_table[offs:])
|
|
return (type,offset,vaddr,filesz,flags)
|
|
prog_segments = [read_program_header(offs) for offs in seg_table_offs]
|
|
|
|
# build the real list of ImageSegment by reading actual data for each segment from the ELF file itself
|
|
def read_data(offs,size):
|
|
f.seek(offs)
|
|
return f.read(size)
|
|
|
|
# read loadable segments
|
|
self.program_segments = [ESPCoreDumpSegment(vaddr, read_data(offset, filesz), type, flags)
|
|
for (type, offset, vaddr, filesz,flags) in prog_segments if vaddr != 0]
|
|
self.aux_segments = [ESPCoreDumpSegment(vaddr, read_data(offset, filesz), type, flags)
|
|
for (type, offset, vaddr, filesz, flags) in prog_segments if type == ESPCoreDumpElfFile.PT_NOTE and vaddr == 0]
|
|
|
|
def add_program_segment(self, addr, data, type, flags):
|
|
"""Adds new program segment
|
|
"""
|
|
# TODO: currently merging with existing segments is not supported
|
|
data_sz = len(data)
|
|
# check for overlapping and merge if needed
|
|
if addr != 0 and data_sz != 0:
|
|
for ps in self.program_segments:
|
|
seg_len = len(ps.data)
|
|
if addr >= ps.addr and addr < (ps.addr + seg_len):
|
|
raise ESPCoreDumpError("Can not add overlapping region [%x..%x] to ELF file. Conflict with existing [%x..%x]." %
|
|
(addr, addr + data_sz - 1, ps.addr, ps.addr + seg_len - 1))
|
|
if (addr + data_sz) > ps.addr and (addr + data_sz) <= (ps.addr + seg_len):
|
|
raise ESPCoreDumpError("Can not add overlapping region [%x..%x] to ELF file. Conflict with existing [%x..%x]." %
|
|
(addr, addr + data_sz - 1, ps.addr, ps.addr + seg_len - 1))
|
|
# append
|
|
self.program_segments.append(ESPCoreDumpSegment(addr, data, type, flags))
|
|
|
|
def add_aux_segment(self, data, type, flags):
|
|
"""Adds new note segment
|
|
"""
|
|
self.aux_segments.append(ESPCoreDumpSegment(0, data, type, flags))
|
|
|
|
def write_program_headers(self, f, off, segs):
|
|
for seg in segs:
|
|
phdr = Elf32ProgramHeader()
|
|
phdr.p_type = seg.type
|
|
phdr.p_offset = off
|
|
phdr.p_vaddr = seg.addr
|
|
phdr.p_paddr = phdr.p_vaddr # TODO
|
|
phdr.p_filesz = len(seg.data)
|
|
phdr.p_memsz = phdr.p_filesz # TODO
|
|
phdr.p_flags = seg.flags
|
|
phdr.p_align = 0 # TODO
|
|
f.write(phdr.dump())
|
|
off += phdr.p_filesz
|
|
return off
|
|
|
|
def dump(self, f):
|
|
"""Write core dump contents to file
|
|
"""
|
|
# TODO: currently dumps only program segments.
|
|
# dumping sections is not supported yet
|
|
# write ELF header
|
|
ehdr = Elf32FileHeader()
|
|
ehdr.e_type = self.e_type
|
|
ehdr.e_machine = self.e_machine
|
|
ehdr.e_entry = 0
|
|
ehdr.e_phoff = ehdr.sizeof()
|
|
ehdr.e_shoff = 0
|
|
ehdr.e_flags = 0
|
|
ehdr.e_phentsize = Elf32ProgramHeader().sizeof()
|
|
ehdr.e_phnum = len(self.program_segments) + len(self.aux_segments)
|
|
ehdr.e_shentsize = 0
|
|
ehdr.e_shnum = 0
|
|
ehdr.e_shstrndx = self.SHN_UNDEF
|
|
f.write(ehdr.dump())
|
|
# write program header table
|
|
cur_off = ehdr.e_ehsize + ehdr.e_phnum * ehdr.e_phentsize
|
|
cur_off = self.write_program_headers(f, cur_off, self.program_segments)
|
|
cur_off = self.write_program_headers(f, cur_off, self.aux_segments)
|
|
# write program segments
|
|
for segment in self.program_segments:
|
|
f.write(segment.data)
|
|
# write aux program segments
|
|
for segment in self.aux_segments:
|
|
f.write(segment.data)
|
|
|
|
|
|
class ESPCoreDumpLoaderError(ESPCoreDumpError):
|
|
"""Core dump loader error class
|
|
"""
|
|
def __init__(self, message):
|
|
"""Constructor for core dump loader error
|
|
"""
|
|
super(ESPCoreDumpLoaderError, self).__init__(message)
|
|
|
|
|
|
class ESPCoreDumpVersion(object):
|
|
"""Core dump version class
|
|
"""
|
|
# This class contains all version-dependent params
|
|
ESP_CORE_DUMP_CHIP_ESP32 = 0
|
|
ESP_CORE_DUMP_CHIP_ESP32S2 = 2
|
|
|
|
def __init__(self, version=None):
|
|
"""Constructor for core dump version
|
|
"""
|
|
super(ESPCoreDumpVersion, self).__init__()
|
|
if version is None:
|
|
self.version = 0
|
|
else:
|
|
self.set_version(version)
|
|
|
|
@staticmethod
|
|
def make_dump_ver(maj, min):
|
|
return (((maj & 0xFF) << 8) | ((min & 0xFF) << 0))
|
|
|
|
def set_version(self, version):
|
|
self.version = version
|
|
|
|
@property
|
|
def chip_ver(self):
|
|
return ((self.version & 0xFFFF0000) >> 16)
|
|
|
|
@property
|
|
def dump_ver(self):
|
|
return (self.version & 0x0000FFFF)
|
|
|
|
@property
|
|
def major(self):
|
|
return ((self.version & 0x0000FF00) >> 8)
|
|
|
|
@property
|
|
def minor(self):
|
|
return (self.version & 0x000000FF)
|
|
|
|
|
|
class ESPCoreDumpLoader(ESPCoreDumpVersion):
|
|
"""Core dump loader base class
|
|
"""
|
|
# "legacy" stands for core dumps v0.1 (before IDF v4.1)
|
|
ESP_COREDUMP_VERSION_BIN_V1 = ESPCoreDumpVersion.make_dump_ver(0, 1)
|
|
ESP_COREDUMP_VERSION_BIN_V2 = ESPCoreDumpVersion.make_dump_ver(0, 2)
|
|
ESP_COREDUMP_VERSION_ELF_CRC32 = ESPCoreDumpVersion.make_dump_ver(1, 0)
|
|
ESP_COREDUMP_VERSION_ELF_SHA256 = ESPCoreDumpVersion.make_dump_ver(1, 1)
|
|
ESP_CORE_DUMP_INFO_TYPE = 8266
|
|
ESP_CORE_DUMP_TASK_INFO_TYPE = 678
|
|
ESP_CORE_DUMP_EXTRA_INFO_TYPE = 677
|
|
ESP_COREDUMP_CURR_TASK_MARKER = 0xdeadbeef
|
|
ESP_COREDUMP_BIN_V1_HDR_FMT = '<4L'
|
|
ESP_COREDUMP_BIN_V1_HDR_SZ = struct.calcsize(ESP_COREDUMP_BIN_V1_HDR_FMT)
|
|
ESP_COREDUMP_HDR_FMT = '<5L'
|
|
ESP_COREDUMP_HDR_SZ = struct.calcsize(ESP_COREDUMP_HDR_FMT)
|
|
ESP_COREDUMP_TSK_HDR_FMT = '<3L'
|
|
ESP_COREDUMP_TSK_HDR_SZ = struct.calcsize(ESP_COREDUMP_TSK_HDR_FMT)
|
|
ESP_COREDUMP_MEM_SEG_HDR_FMT = '<2L'
|
|
ESP_COREDUMP_MEM_SEG_HDR_SZ = struct.calcsize(ESP_COREDUMP_MEM_SEG_HDR_FMT)
|
|
ESP_COREDUMP_NOTE_HDR_FMT = '<3L'
|
|
ESP_COREDUMP_NOTE_HDR_SZ = struct.calcsize(ESP_COREDUMP_NOTE_HDR_FMT)
|
|
ESP_COREDUMP_CRC_FMT = '<L'
|
|
ESP_COREDUMP_CRC_SZ = struct.calcsize(ESP_COREDUMP_CRC_FMT)
|
|
ESP_COREDUMP_SHA256_FMT = '32c'
|
|
ESP_COREDUMP_SHA256_SZ = struct.calcsize(ESP_COREDUMP_SHA256_FMT)
|
|
|
|
def __init__(self):
|
|
"""Base constructor for core dump loader
|
|
"""
|
|
super(ESPCoreDumpLoader, self).__init__()
|
|
self.fcore = None
|
|
self.hdr = {}
|
|
|
|
def _get_registers_from_stack(self, data, grows_down):
|
|
"""Returns list of registers (in GDB format) from xtensa stack frame
|
|
"""
|
|
# from "gdb/xtensa-tdep.h"
|
|
# typedef struct
|
|
# {
|
|
# 0 xtensa_elf_greg_t pc;
|
|
# 1 xtensa_elf_greg_t ps;
|
|
# 2 xtensa_elf_greg_t lbeg;
|
|
# 3 xtensa_elf_greg_t lend;
|
|
# 4 xtensa_elf_greg_t lcount;
|
|
# 5 xtensa_elf_greg_t sar;
|
|
# 6 xtensa_elf_greg_t windowstart;
|
|
# 7 xtensa_elf_greg_t windowbase;
|
|
# 8..63 xtensa_elf_greg_t reserved[8+48];
|
|
# 64 xtensa_elf_greg_t ar[64];
|
|
# } xtensa_elf_gregset_t;
|
|
REG_PC_IDX = 0
|
|
REG_PS_IDX = 1
|
|
REG_LB_IDX = 2
|
|
REG_LE_IDX = 3
|
|
REG_LC_IDX = 4
|
|
REG_SAR_IDX = 5
|
|
# REG_WS_IDX = 6
|
|
# REG_WB_IDX = 7
|
|
REG_AR_START_IDX = 64
|
|
# REG_AR_NUM = 64
|
|
# FIXME: acc to xtensa_elf_gregset_t number of regs must be 128,
|
|
# but gdb complanis when it less then 129
|
|
REG_NUM = 129
|
|
|
|
# XT_SOL_EXIT = 0
|
|
XT_SOL_PC = 1
|
|
XT_SOL_PS = 2
|
|
# XT_SOL_NEXT = 3
|
|
XT_SOL_AR_START = 4
|
|
XT_SOL_AR_NUM = 4
|
|
# XT_SOL_FRMSZ = 8
|
|
|
|
XT_STK_EXIT = 0
|
|
XT_STK_PC = 1
|
|
XT_STK_PS = 2
|
|
XT_STK_AR_START = 3
|
|
XT_STK_AR_NUM = 16
|
|
XT_STK_SAR = 19
|
|
XT_STK_EXCCAUSE = 20
|
|
XT_STK_EXCVADDR = 21
|
|
XT_STK_LBEG = 22
|
|
XT_STK_LEND = 23
|
|
XT_STK_LCOUNT = 24
|
|
XT_STK_FRMSZ = 25
|
|
|
|
extra_regs = {ESPCoreDumpElfFile.REG_EPS2_IDX: 0, ESPCoreDumpElfFile.REG_EPS3_IDX: 0,
|
|
ESPCoreDumpElfFile.REG_EPS4_IDX: 0, ESPCoreDumpElfFile.REG_EPS5_IDX: 0,
|
|
ESPCoreDumpElfFile.REG_EPS6_IDX: 0, ESPCoreDumpElfFile.REG_EPS7_IDX: 0,
|
|
ESPCoreDumpElfFile.REG_EPC1_IDX: 0, ESPCoreDumpElfFile.REG_EPC2_IDX: 0,
|
|
ESPCoreDumpElfFile.REG_EPC3_IDX: 0, ESPCoreDumpElfFile.REG_EPC4_IDX: 0,
|
|
ESPCoreDumpElfFile.REG_EPC5_IDX: 0, ESPCoreDumpElfFile.REG_EPC6_IDX: 0,
|
|
ESPCoreDumpElfFile.REG_EPC7_IDX: 0}
|
|
regs = [0] * REG_NUM
|
|
# TODO: support for growing up stacks
|
|
if not grows_down:
|
|
raise ESPCoreDumpLoaderError("Growing up stacks are not supported for now!")
|
|
ex_struct = "<%dL" % XT_STK_FRMSZ
|
|
if len(data) < struct.calcsize(ex_struct):
|
|
raise ESPCoreDumpLoaderError("Too small stack to keep frame: %d bytes!" % len(data))
|
|
|
|
stack = struct.unpack(ex_struct, data[:struct.calcsize(ex_struct)])
|
|
# Stack frame type indicator is always the first item
|
|
rc = stack[XT_STK_EXIT]
|
|
if rc != 0:
|
|
regs[REG_PC_IDX] = stack[XT_STK_PC]
|
|
regs[REG_PS_IDX] = stack[XT_STK_PS]
|
|
for i in range(XT_STK_AR_NUM):
|
|
regs[REG_AR_START_IDX + i] = stack[XT_STK_AR_START + i]
|
|
regs[REG_SAR_IDX] = stack[XT_STK_SAR]
|
|
regs[REG_LB_IDX] = stack[XT_STK_LBEG]
|
|
regs[REG_LE_IDX] = stack[XT_STK_LEND]
|
|
regs[REG_LC_IDX] = stack[XT_STK_LCOUNT]
|
|
# FIXME: crashed and some running tasks (e.g. prvIdleTask) have EXCM bit set
|
|
# and GDB can not unwind callstack properly (it implies not windowed call0)
|
|
if regs[REG_PS_IDX] & (1 << 5):
|
|
regs[REG_PS_IDX] &= ~(1 << 4)
|
|
if stack[XT_STK_EXCCAUSE] in xtensa_exception_cause_dict:
|
|
extra_regs[ESPCoreDumpElfFile.REG_EXCCAUSE_IDX] = stack[XT_STK_EXCCAUSE]
|
|
else:
|
|
extra_regs[ESPCoreDumpElfFile.REG_EXCCAUSE_IDX] = INVALID_CAUSE_VALUE
|
|
extra_regs[ESPCoreDumpElfFile.REG_EXCVADDR_IDX] = stack[XT_STK_EXCVADDR]
|
|
else:
|
|
regs[REG_PC_IDX] = stack[XT_SOL_PC]
|
|
regs[REG_PS_IDX] = stack[XT_SOL_PS]
|
|
for i in range(XT_SOL_AR_NUM):
|
|
regs[REG_AR_START_IDX + i] = stack[XT_SOL_AR_START + i]
|
|
# nxt = stack[XT_SOL_NEXT]
|
|
return regs,extra_regs
|
|
|
|
def tcb_is_sane(self, tcb_addr, tcb_size):
|
|
"""Check tcb address if it is correct
|
|
"""
|
|
return not (tcb_addr < 0x3ffae000 or (tcb_addr + tcb_size) > 0x40000000)
|
|
|
|
def stack_is_sane(self, sp):
|
|
"""Check stack address if it is correct
|
|
"""
|
|
return not(sp < 0x3ffae010 or sp > 0x3fffffff)
|
|
|
|
def addr_is_fake(self, addr):
|
|
"""Check if address is in fake area
|
|
"""
|
|
return ((addr < 0x3f3fffff and addr >= 0x20000000) or addr >= 0x80000000)
|
|
|
|
def remove_tmp_file(self, fname):
|
|
"""Silently removes temporary file
|
|
"""
|
|
try:
|
|
os.remove(fname)
|
|
except OSError as e:
|
|
if e.errno != errno.ENOENT:
|
|
logging.warning("Failed to remove temp file '%s' (%d)!" % (fname, e.errno))
|
|
|
|
def cleanup(self):
|
|
"""Cleans up loader resources
|
|
"""
|
|
if self.fcore:
|
|
self.fcore.close()
|
|
if self.fcore_name:
|
|
self.remove_tmp_file(self.fcore_name)
|
|
|
|
def _extract_elf_corefile(self, core_fname=None, off=0, exe_name=None):
|
|
""" Reads the ELF formatted core dump image and parse it
|
|
"""
|
|
core_off = off
|
|
self.set_version(self.hdr['ver'])
|
|
if self.dump_ver == self.ESP_COREDUMP_VERSION_ELF_CRC32:
|
|
checksum_len = self.ESP_COREDUMP_CRC_SZ
|
|
elif self.dump_ver == self.ESP_COREDUMP_VERSION_ELF_SHA256:
|
|
checksum_len = self.ESP_COREDUMP_SHA256_SZ
|
|
else:
|
|
raise ESPCoreDumpLoaderError("Core dump version '%d' is not supported!" % self.dump_ver)
|
|
core_elf = ESPCoreDumpElfFile()
|
|
data = self.read_data(core_off, self.hdr['tot_len'] - checksum_len - self.ESP_COREDUMP_HDR_SZ)
|
|
with open(core_fname, 'w+b') as fce:
|
|
try:
|
|
fce.write(data)
|
|
fce.flush()
|
|
fce.seek(0)
|
|
core_elf._read_elf_file(fce)
|
|
if exe_name:
|
|
exe_elf = ESPCoreDumpElfFile(exe_name)
|
|
# Read note segments from core file which are belong to tasks (TCB or stack)
|
|
for ns in core_elf.aux_segments:
|
|
if ns.type != ESPCoreDumpElfFile.PT_NOTE:
|
|
continue
|
|
note_read = 0
|
|
while note_read < len(ns.data):
|
|
note = Elf32NoteDesc("", 0, None)
|
|
note_read += note.read(ns.data[note_read:])
|
|
# Check for version info note
|
|
if 'ESP_CORE_DUMP_INFO' == note.name and note.type == self.ESP_CORE_DUMP_INFO_TYPE and exe_name:
|
|
app_sha256 = binascii.hexlify(exe_elf.sha256())
|
|
n_ver_len = struct.calcsize("<L")
|
|
n_sha256_len = self.ESP_COREDUMP_SHA256_SZ * 2 # SHA256 as hex string
|
|
n_ver,coredump_sha256 = struct.unpack("<L%ds" % (n_sha256_len), note.desc[:n_ver_len + n_sha256_len])
|
|
if coredump_sha256 != app_sha256 or ESPCoreDumpVersion(n_ver).dump_ver != self.dump_ver:
|
|
raise ESPCoreDumpError("Invalid application image for coredump: app_SHA256(%s) != coredump_SHA256(%s)." %
|
|
(app_sha256, coredump_sha256))
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Failed to extract ELF core dump image into file %s. (Reason: %s)" % (core_fname, e))
|
|
return core_fname
|
|
|
|
def _extract_bin_corefile(self, core_fname=None, rom_elf=None, off=0):
|
|
"""Creates core dump ELF file
|
|
"""
|
|
core_off = off
|
|
with open(core_fname, 'w+b') as fce:
|
|
tcbsz_aligned = self.hdr['tcbsz']
|
|
if tcbsz_aligned % 4:
|
|
tcbsz_aligned = 4 * (old_div(tcbsz_aligned,4) + 1)
|
|
core_elf = ESPCoreDumpElfFile()
|
|
notes = b''
|
|
core_dump_info_notes = b''
|
|
task_info_notes = b''
|
|
task_status = EspCoreDumpTaskStatus()
|
|
for i in range(self.hdr['task_num']):
|
|
task_status.task_index = i
|
|
task_status.task_flags = EspCoreDumpTaskStatus.TASK_STATUS_CORRECT
|
|
data = self.read_data(core_off, self.ESP_COREDUMP_TSK_HDR_SZ)
|
|
tcb_addr,stack_top,stack_end = struct.unpack_from(self.ESP_COREDUMP_TSK_HDR_FMT, data)
|
|
if stack_end > stack_top:
|
|
stack_len = stack_end - stack_top
|
|
stack_base = stack_top
|
|
else:
|
|
stack_len = stack_top - stack_end
|
|
stack_base = stack_end
|
|
stack_len_aligned = stack_len
|
|
if stack_len_aligned % 4:
|
|
stack_len_aligned = 4 * (old_div(stack_len_aligned,4) + 1)
|
|
|
|
core_off += self.ESP_COREDUMP_TSK_HDR_SZ
|
|
logging.debug("Read TCB %d bytes @ 0x%x" % (tcbsz_aligned, tcb_addr))
|
|
data = self.read_data(core_off, tcbsz_aligned)
|
|
task_status.task_tcb_addr = tcb_addr
|
|
try:
|
|
if self.tcb_is_sane(tcb_addr, tcbsz_aligned):
|
|
if self.hdr['tcbsz'] != tcbsz_aligned:
|
|
core_elf.add_program_segment(tcb_addr, data[:self.hdr['tcbsz'] - tcbsz_aligned],
|
|
ESPCoreDumpElfFile.PT_LOAD, ESPCoreDumpSegment.PF_R | ESPCoreDumpSegment.PF_W)
|
|
else:
|
|
core_elf.add_program_segment(tcb_addr, data, ESPCoreDumpElfFile.PT_LOAD, ESPCoreDumpSegment.PF_R | ESPCoreDumpSegment.PF_W)
|
|
# task_status.task_name = bytearray("%s\0" % task_name_str, encoding='ascii')
|
|
elif tcb_addr and self.addr_is_fake(tcb_addr):
|
|
task_status.task_flags |= EspCoreDumpTaskStatus.TASK_STATUS_TCB_CORRUPTED
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Skip TCB %d bytes @ 0x%x. (Reason: %s)" % (tcbsz_aligned, tcb_addr, e))
|
|
|
|
core_off += tcbsz_aligned
|
|
logging.debug("Read stack %d bytes @ 0x%x" % (stack_len_aligned, stack_base))
|
|
data = self.read_data(core_off, stack_len_aligned)
|
|
if stack_len != stack_len_aligned:
|
|
data = data[:stack_len - stack_len_aligned]
|
|
task_status.task_stack_start = stack_base
|
|
task_status.task_stack_len = stack_len_aligned
|
|
try:
|
|
if self.stack_is_sane(stack_base):
|
|
core_elf.add_program_segment(stack_base, data, ESPCoreDumpElfFile.PT_LOAD, ESPCoreDumpSegment.PF_R | ESPCoreDumpSegment.PF_W)
|
|
elif stack_base and self.addr_is_fake(stack_base):
|
|
task_status.task_flags |= EspCoreDumpTaskStatus.TASK_STATUS_STACK_CORRUPTED
|
|
core_elf.add_program_segment(stack_base, data, ESPCoreDumpElfFile.PT_LOAD, ESPCoreDumpSegment.PF_R | ESPCoreDumpSegment.PF_W)
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Skip task's (%x) stack %d bytes @ 0x%x. (Reason: %s)" % (tcb_addr, stack_len_aligned, stack_base, e))
|
|
core_off += stack_len_aligned
|
|
try:
|
|
logging.debug("Stack start_end: 0x%x @ 0x%x" % (stack_top, stack_end))
|
|
task_regs,extra_regs = self._get_registers_from_stack(data, stack_end > stack_top)
|
|
except Exception as e:
|
|
logging.error(e)
|
|
return None
|
|
task_info_notes += Elf32NoteDesc("TASK_INFO", self.ESP_CORE_DUMP_TASK_INFO_TYPE, task_status.dump()).dump()
|
|
prstatus = XtensaPrStatus()
|
|
prstatus.pr_cursig = 0 # TODO: set sig only for current/failed task
|
|
prstatus.pr_pid = tcb_addr
|
|
note = Elf32NoteDesc("CORE", 1, prstatus.dump() + struct.pack("<%dL" % len(task_regs), *task_regs)).dump()
|
|
notes += note
|
|
if ESPCoreDumpElfFile.REG_EXCCAUSE_IDX in extra_regs and len(core_dump_info_notes) == 0:
|
|
# actually there will be only one such note - for crashed task
|
|
core_dump_info_notes += Elf32NoteDesc("ESP_CORE_DUMP_INFO", self.ESP_CORE_DUMP_INFO_TYPE, struct.pack("<L", self.hdr['ver'])).dump()
|
|
exc_regs = []
|
|
for reg_id in extra_regs:
|
|
exc_regs.extend([reg_id, extra_regs[reg_id]])
|
|
core_dump_info_notes += Elf32NoteDesc("EXTRA_INFO", self.ESP_CORE_DUMP_EXTRA_INFO_TYPE,
|
|
struct.pack("<%dL" % (1 + len(exc_regs)), tcb_addr, *exc_regs)).dump()
|
|
self.set_version(self.hdr['ver'])
|
|
if self.dump_ver == self.ESP_COREDUMP_VERSION_BIN_V2:
|
|
for i in range(self.hdr['segs_num']):
|
|
data = self.read_data(core_off, self.ESP_COREDUMP_MEM_SEG_HDR_SZ)
|
|
core_off += self.ESP_COREDUMP_MEM_SEG_HDR_SZ
|
|
mem_start,mem_sz = struct.unpack_from(self.ESP_COREDUMP_MEM_SEG_HDR_FMT, data)
|
|
logging.debug("Read memory segment %d bytes @ 0x%x" % (mem_sz, mem_start))
|
|
data = self.read_data(core_off, mem_sz)
|
|
core_elf.add_program_segment(mem_start, data, ESPCoreDumpElfFile.PT_LOAD, ESPCoreDumpSegment.PF_R | ESPCoreDumpSegment.PF_W)
|
|
core_off += mem_sz
|
|
# add notes
|
|
try:
|
|
core_elf.add_aux_segment(notes, ESPCoreDumpElfFile.PT_NOTE, 0)
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Skip NOTES segment %d bytes @ 0x%x. (Reason: %s)" % (len(notes), 0, e))
|
|
# add core dump info notes
|
|
try:
|
|
core_elf.add_aux_segment(core_dump_info_notes, ESPCoreDumpElfFile.PT_NOTE, 0)
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Skip core dump info NOTES segment %d bytes @ 0x%x. (Reason: %s)" % (len(core_dump_info_notes), 0, e))
|
|
try:
|
|
core_elf.add_aux_segment(task_info_notes, ESPCoreDumpElfFile.PT_NOTE, 0)
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Skip failed tasks info NOTES segment %d bytes @ 0x%x. (Reason: %s)" % (len(task_info_notes), 0, e))
|
|
# add ROM text sections
|
|
if rom_elf:
|
|
for ps in rom_elf.program_segments:
|
|
if (ps.flags & ESPCoreDumpSegment.PF_X) == 0:
|
|
continue
|
|
try:
|
|
core_elf.add_program_segment(ps.addr, ps.data, ESPCoreDumpElfFile.PT_LOAD, ps.flags)
|
|
except ESPCoreDumpError as e:
|
|
logging.warning("Skip ROM segment %d bytes @ 0x%x. (Reason: %s)" % (len(ps.data), ps.addr, e))
|
|
# dump core ELF
|
|
core_elf.e_type = ESPCoreDumpElfFile.ET_CORE
|
|
core_elf.e_machine = ESPCoreDumpElfFile.EM_XTENSA
|
|
core_elf.dump(fce)
|
|
return core_fname
|
|
|
|
def create_corefile(self, core_fname=None, exe_name=None, rom_elf=None, off=0):
|
|
"""Creates core dump ELF file
|
|
"""
|
|
data = self.read_data(off, self.ESP_COREDUMP_HDR_SZ)
|
|
vals = struct.unpack_from(self.ESP_COREDUMP_HDR_FMT, data)
|
|
self.hdr = dict(zip(('tot_len', 'ver', 'task_num', 'tcbsz', 'segs_num'), vals))
|
|
if not core_fname:
|
|
fce = tempfile.NamedTemporaryFile(mode='w+b', delete=False)
|
|
core_fname = fce.name
|
|
self.set_version(self.hdr['ver'])
|
|
if self.chip_ver == ESPCoreDumpVersion.ESP_CORE_DUMP_CHIP_ESP32S2 or self.chip_ver == ESPCoreDumpVersion.ESP_CORE_DUMP_CHIP_ESP32:
|
|
if self.dump_ver == self.ESP_COREDUMP_VERSION_ELF_CRC32 or self.dump_ver == self.ESP_COREDUMP_VERSION_ELF_SHA256:
|
|
return self._extract_elf_corefile(core_fname, off + self.ESP_COREDUMP_HDR_SZ, exe_name)
|
|
elif self.dump_ver == self.ESP_COREDUMP_VERSION_BIN_V2:
|
|
return self._extract_bin_corefile(core_fname, rom_elf, off + self.ESP_COREDUMP_HDR_SZ)
|
|
elif self.dump_ver == self.ESP_COREDUMP_VERSION_BIN_V1:
|
|
return self._extract_bin_corefile(core_fname, rom_elf, off + self.ESP_COREDUMP_BIN_V1_HDR_SZ)
|
|
raise ESPCoreDumpLoaderError("Core dump version '0x%x' is not supported!" % (self.dump_ver))
|
|
else:
|
|
raise ESPCoreDumpLoaderError("Core dump chip '0x%x' is not supported!" % (self.chip_ver))
|
|
|
|
def read_data(self, off, sz):
|
|
"""Reads data from raw core dump got from flash or UART
|
|
"""
|
|
self.fcore.seek(off)
|
|
data = self.fcore.read(sz)
|
|
return data
|
|
|
|
|
|
class ESPCoreDumpFileLoader(ESPCoreDumpLoader):
|
|
"""Core dump file loader class
|
|
"""
|
|
def __init__(self, path, b64=False):
|
|
"""Constructor for core dump file loader
|
|
"""
|
|
super(ESPCoreDumpFileLoader, self).__init__()
|
|
self.fcore = self._load_coredump(path, b64)
|
|
|
|
def _load_coredump(self, path, b64):
|
|
"""Loads core dump from (raw binary or base64-encoded) file
|
|
"""
|
|
logging.debug("Load core dump from '%s'", path)
|
|
self.fcore_name = None
|
|
if b64:
|
|
fhnd,self.fcore_name = tempfile.mkstemp()
|
|
fcore = os.fdopen(fhnd, 'wb')
|
|
fb64 = open(path, 'rb')
|
|
try:
|
|
while True:
|
|
line = fb64.readline()
|
|
if len(line) == 0:
|
|
break
|
|
data = base64.standard_b64decode(line.rstrip(b'\r\n'))
|
|
fcore.write(data)
|
|
fcore.close()
|
|
fcore = open(self.fcore_name, 'rb')
|
|
except Exception as e:
|
|
if self.fcore_name:
|
|
self.remove_tmp_file(self.fcore_name)
|
|
raise e
|
|
finally:
|
|
fb64.close()
|
|
else:
|
|
fcore = open(path, 'rb')
|
|
return fcore
|
|
|
|
|
|
class ESPCoreDumpFlashLoader(ESPCoreDumpLoader):
|
|
"""Core dump flash loader class
|
|
"""
|
|
ESP_COREDUMP_FLASH_LEN_FMT = '<L'
|
|
ESP_COREDUMP_FLASH_LEN_SZ = struct.calcsize(ESP_COREDUMP_FLASH_LEN_FMT)
|
|
ESP_COREDUMP_PART_TABLE_OFF = 0x8000
|
|
|
|
def __init__(self, off, tool_path=None, chip='esp32', port=None, baud=None):
|
|
"""Constructor for core dump flash loader
|
|
"""
|
|
super(ESPCoreDumpFlashLoader, self).__init__()
|
|
self.port = port
|
|
self.baud = baud
|
|
self.chip = chip
|
|
self.dump_sz = 0
|
|
self.fcore = self._load_coredump(off)
|
|
|
|
def get_tool_path(self, use_esptool=None):
|
|
"""Get tool path
|
|
"""
|
|
if use_esptool:
|
|
tool_path = os.path.join(idf_path, 'components', 'esptool_py', 'esptool') + os.path.sep
|
|
else:
|
|
tool_path = os.path.join(idf_path, 'components', 'partition_table') + os.path.sep
|
|
return tool_path
|
|
|
|
def get_core_dump_partition_info(self, part_off=None, tool_path=None):
|
|
"""Get core dump partition info using parttool
|
|
"""
|
|
logging.info("Retrieving core dump partition offset and size...")
|
|
if not tool_path:
|
|
tool_path = self.get_tool_path(use_esptool=False)
|
|
if not part_off:
|
|
part_off = self.ESP_COREDUMP_PART_TABLE_OFF
|
|
size = None
|
|
offset = None
|
|
try:
|
|
tool_args = [sys.executable, tool_path + 'parttool.py', "-q", "--partition-table-offset", str(part_off)]
|
|
if self.port:
|
|
tool_args.extend(['--port', self.port])
|
|
invoke_args = tool_args + ["get_partition_info", "--partition-type", "data", "--partition-subtype", "coredump", "--info", "offset", "size"]
|
|
(offset_str, size_str) = subprocess.check_output(invoke_args).strip().split(b" ")
|
|
size = int(size_str, 16)
|
|
offset = int(offset_str, 16)
|
|
logging.info("Core dump partition offset=%d, size=%d", offset, size)
|
|
except subprocess.CalledProcessError as e:
|
|
logging.error("parttool get partition info failed with err %d" % e.returncode)
|
|
logging.debug("Command ran: '%s'" % e.cmd)
|
|
logging.debug("Command out:")
|
|
logging.debug(e.output)
|
|
logging.error("Check if the coredump partition exists in partition table.")
|
|
raise e
|
|
return (offset, size)
|
|
|
|
def invoke_parttool(self, tool_path=None):
|
|
"""Loads core dump from flash using parttool
|
|
"""
|
|
part_tool_args = [sys.executable, tool_path + 'parttool.py']
|
|
if self.port:
|
|
part_tool_args.extend(['--port', self.port])
|
|
part_tool_args.extend(['read_partition', '--partition-type', 'data', '--partition-subtype', 'coredump', '--output'])
|
|
self.fcore_name = None
|
|
f = tempfile.NamedTemporaryFile(mode='w+b', delete=False)
|
|
try:
|
|
part_tool_args.append(f.name)
|
|
self.fcore_name = f.name
|
|
# read core dump partition
|
|
et_out = subprocess.check_output(part_tool_args)
|
|
if len(et_out):
|
|
logging.info(et_out.decode('utf-8'))
|
|
self.dump_sz = self._read_core_dump_length(f)
|
|
f.seek(self.dump_sz)
|
|
# cut free space of the partition
|
|
f.truncate()
|
|
f.seek(0)
|
|
except subprocess.CalledProcessError as e:
|
|
logging.error("parttool script execution failed with err %d" % e.returncode)
|
|
logging.debug("Command ran: '%s'" % e.cmd)
|
|
logging.debug("Command out:")
|
|
logging.debug(e.output)
|
|
if self.fcore_name:
|
|
f.close()
|
|
self.remove_tmp_file(self.fcore_name)
|
|
raise e
|
|
|
|
return f
|
|
|
|
def invoke_esptool(self, tool_path=None, off=None):
|
|
"""Loads core dump from flash using elftool
|
|
"""
|
|
tool_args = [sys.executable, tool_path + 'esptool.py', '-c', self.chip]
|
|
if self.port:
|
|
tool_args.extend(['-p', self.port])
|
|
if self.baud:
|
|
tool_args.extend(['-b', str(self.baud)])
|
|
f = tempfile.NamedTemporaryFile(mode='w+b', delete=False)
|
|
self.fcore_name = None
|
|
try:
|
|
(part_offset, part_size) = self.get_core_dump_partition_info(tool_path='')
|
|
if not off:
|
|
off = part_offset # set default offset if not specified
|
|
logging.warning("The core dump image offset is not specified. Use partition offset: %d.", part_offset)
|
|
if part_offset != off:
|
|
logging.warning("Predefined image offset: %d does not match core dump partition offset: %d", off, part_offset)
|
|
tool_args.extend(['read_flash', str(off), str(self.ESP_COREDUMP_FLASH_LEN_SZ)])
|
|
tool_args.append(f.name)
|
|
self.fcore_name = f.name
|
|
# read core dump length
|
|
et_out = subprocess.check_output(tool_args)
|
|
if len(et_out):
|
|
logging.info(et_out.decode('utf-8'))
|
|
self.dump_sz = self._read_core_dump_length(f)
|
|
if self.dump_sz == 0 or self.dump_sz > part_size:
|
|
logging.error("Incorrect size of core dump image: %d, use partition size instead: %d", self.dump_sz, part_size)
|
|
self.dump_sz = part_size
|
|
# set actual size of core dump image and read it from flash
|
|
tool_args[-2] = str(self.dump_sz)
|
|
et_out = subprocess.check_output(tool_args)
|
|
if len(et_out):
|
|
logging.info(et_out.decode('utf-8'))
|
|
except subprocess.CalledProcessError as e:
|
|
logging.error("esptool script execution failed with err %d" % e.returncode)
|
|
logging.debug("Command ran: '%s'" % e.cmd)
|
|
logging.debug("Command out:")
|
|
logging.debug(e.output)
|
|
if self.fcore_name:
|
|
f.close()
|
|
self.remove_tmp_file(self.fcore_name)
|
|
raise e
|
|
return f
|
|
|
|
def _load_coredump(self, off=None):
|
|
"""Loads core dump from flash using parttool or elftool (if offset is set)
|
|
"""
|
|
tool_path = None
|
|
try:
|
|
if off:
|
|
tool_path = ''
|
|
logging.info("Invoke esptool to read image.")
|
|
f = self.invoke_esptool(tool_path=tool_path, off=off)
|
|
else:
|
|
tool_path = ''
|
|
logging.info("Invoke parttool to read image.")
|
|
f = self.invoke_parttool(tool_path=tool_path)
|
|
except subprocess.CalledProcessError as e:
|
|
if len(e.output):
|
|
logging.info(e.output)
|
|
logging.warning("System path is not set. Try to use predefined path.")
|
|
if off:
|
|
tool_path = self.get_tool_path(use_esptool=True)
|
|
f = self.invoke_esptool(tool_path=tool_path, off=off)
|
|
else:
|
|
tool_path = self.get_tool_path(use_esptool=False)
|
|
f = self.invoke_parttool(tool_path=tool_path)
|
|
return f
|
|
|
|
def _read_core_dump_length(self, f):
|
|
"""Reads core dump length
|
|
"""
|
|
data = f.read(self.ESP_COREDUMP_FLASH_LEN_SZ)
|
|
tot_len, = struct.unpack_from(self.ESP_COREDUMP_FLASH_LEN_FMT, data)
|
|
return tot_len
|
|
|
|
def create_corefile(self, core_fname=None, exe_name=None, rom_elf=None):
|
|
"""Checks flash coredump data integrity and creates ELF file
|
|
"""
|
|
data = self.read_data(0, self.ESP_COREDUMP_HDR_SZ)
|
|
self.checksum_len = 0
|
|
_,coredump_ver_data,_,_,_ = struct.unpack_from(self.ESP_COREDUMP_HDR_FMT, data)
|
|
self.set_version(coredump_ver_data)
|
|
if self.chip_ver != ESPCoreDumpVersion.ESP_CORE_DUMP_CHIP_ESP32S2 and self.chip_ver != ESPCoreDumpVersion.ESP_CORE_DUMP_CHIP_ESP32:
|
|
raise ESPCoreDumpLoaderError("Invalid core dump chip version: '%s', should be <= '0x%x'" % (self.chip_ver, self.ESP_CORE_DUMP_CHIP_ESP32S2))
|
|
if self.dump_ver == self.ESP_COREDUMP_VERSION_ELF_CRC32 or self.dump_ver == self.ESP_COREDUMP_VERSION_BIN_V1 \
|
|
or self.dump_ver == self.ESP_COREDUMP_VERSION_BIN_V2:
|
|
logging.debug("Dump size = %d, crc off = 0x%x", self.dump_sz, self.dump_sz - self.ESP_COREDUMP_CRC_SZ)
|
|
data = self.read_data(self.dump_sz - self.ESP_COREDUMP_CRC_SZ, self.ESP_COREDUMP_CRC_SZ)
|
|
dump_crc, = struct.unpack_from(self.ESP_COREDUMP_CRC_FMT, data)
|
|
data = self.read_data(0, self.dump_sz - self.ESP_COREDUMP_CRC_SZ)
|
|
data_crc = binascii.crc32(data) & 0xffffffff
|
|
if dump_crc != data_crc:
|
|
raise ESPCoreDumpLoaderError("Invalid core dump CRC %x, should be %x" % (data_crc, dump_crc))
|
|
elif self.dump_ver == self.ESP_COREDUMP_VERSION_ELF_SHA256:
|
|
dump_sha256 = self.read_data(self.dump_sz - self.ESP_COREDUMP_SHA256_SZ, self.ESP_COREDUMP_SHA256_SZ)
|
|
data = self.read_data(0, self.dump_sz - self.ESP_COREDUMP_SHA256_SZ)
|
|
data_sha256 = sha256(data)
|
|
data_sha256_str = data_sha256.hexdigest()
|
|
dump_sha256_str = binascii.hexlify(dump_sha256).decode('ascii')
|
|
if dump_sha256_str != data_sha256_str:
|
|
raise ESPCoreDumpLoaderError("Invalid core dump SHA256 '%s', should be '%s'" % (dump_sha256_str, data_sha256_str))
|
|
return super(ESPCoreDumpFlashLoader, self).create_corefile(core_fname, exe_name)
|
|
|
|
|
|
class GDBMIOutRecordHandler(object):
|
|
"""GDB/MI output record handler base class
|
|
"""
|
|
TAG = ''
|
|
|
|
def __init__(self, f, verbose=False):
|
|
"""Base constructor for GDB/MI output record handler
|
|
"""
|
|
self.verbose = verbose
|
|
|
|
def execute(self, ln):
|
|
"""Base method to execute GDB/MI output record handler function
|
|
"""
|
|
if self.verbose:
|
|
logging.debug("%s.execute: [[%s]]" % (self.__class__.__name__, ln))
|
|
|
|
|
|
class GDBMIOutStreamHandler(GDBMIOutRecordHandler):
|
|
"""GDB/MI output stream handler class
|
|
"""
|
|
def __init__(self, f, verbose=False):
|
|
"""Constructor for GDB/MI output stream handler
|
|
"""
|
|
super(GDBMIOutStreamHandler, self).__init__(None, verbose)
|
|
self.func = f
|
|
|
|
def execute(self, ln):
|
|
"""Executes GDB/MI output stream handler function
|
|
"""
|
|
GDBMIOutRecordHandler.execute(self, ln)
|
|
if self.func:
|
|
# remove TAG / quotes and replace c-string \n with actual NL
|
|
self.func(ln[1:].strip('"').replace('\\n', '\n').replace('\\t', '\t'))
|
|
|
|
|
|
class GDBMIResultHandler(GDBMIOutRecordHandler):
|
|
"""GDB/MI result handler class
|
|
"""
|
|
TAG = '^'
|
|
RC_DONE = 'done'
|
|
RC_RUNNING = 'running'
|
|
RC_CONNECTED = 'connected'
|
|
RC_ERROR = 'error'
|
|
RC_EXIT = 'exit'
|
|
|
|
def __init__(self, verbose=False):
|
|
"""Constructor for GDB/MI result handler
|
|
"""
|
|
super(GDBMIResultHandler, self).__init__(None, verbose)
|
|
self.result_class = ''
|
|
self.result_str = ''
|
|
|
|
def _parse_rc(self, ln, rc):
|
|
"""Parses result code
|
|
"""
|
|
rc_str = "{0}{1}".format(self.TAG, rc)
|
|
if not ln.startswith(rc_str):
|
|
return False
|
|
self.result_class = rc
|
|
if len(ln) > len(rc_str):
|
|
self.result_str = ln[len(rc_str):]
|
|
if self.result_str.startswith(','):
|
|
self.result_str = self.result_str[1:]
|
|
else:
|
|
logging.error("Invalid result format: '%s'" % ln)
|
|
else:
|
|
self.result_str = ''
|
|
return True
|
|
|
|
def execute(self, ln):
|
|
"""Executes GDB/MI result handler function
|
|
"""
|
|
GDBMIOutRecordHandler.execute(self, ln)
|
|
if self._parse_rc(ln, self.RC_DONE):
|
|
return
|
|
if self._parse_rc(ln, self.RC_RUNNING):
|
|
return
|
|
if self._parse_rc(ln, self.RC_CONNECTED):
|
|
return
|
|
if self._parse_rc(ln, self.RC_ERROR):
|
|
return
|
|
if self._parse_rc(ln, self.RC_EXIT):
|
|
return
|
|
logging.error("Unknown GDB/MI result: '%s'" % ln)
|
|
|
|
|
|
class GDBMIThreadListIdsHandler(GDBMIResultHandler):
|
|
"""GDB/MI thread-list-ids handler class
|
|
"""
|
|
def __init__(self, verbose=False):
|
|
"""Constructor for GDB/MI result handler
|
|
"""
|
|
super(GDBMIThreadListIdsHandler, self).__init__(verbose)
|
|
self.threads = []
|
|
self.current_thread = ''
|
|
|
|
def execute(self, ln):
|
|
"""Executes GDB/MI thread-list-ids handler function
|
|
"""
|
|
GDBMIResultHandler.execute(self, ln)
|
|
if self.result_class != self.RC_DONE:
|
|
return
|
|
# simple parsing method
|
|
result = re.search(r'thread-ids\s*=\s*\{([^\{\}]*)\}', self.result_str)
|
|
if result:
|
|
for tid in re.finditer(r'thread-id="(\d+)"', result.group(1)):
|
|
self.threads.append(tid.group(1))
|
|
result = re.search(r'current-thread-id="(\d+)"', self.result_str)
|
|
if result:
|
|
self.current_thread = result.group(1)
|
|
|
|
|
|
class GDBMIThreadSelectHandler(GDBMIResultHandler):
|
|
"""GDB/MI thread-select handler class
|
|
"""
|
|
def execute(self, ln):
|
|
"""Executes GDB/MI thread-select handler function
|
|
"""
|
|
GDBMIResultHandler.execute(self, ln)
|
|
if self.result_class != self.RC_DONE:
|
|
return
|
|
|
|
|
|
class GDBMIThreadInfoHandler(GDBMIResultHandler):
|
|
"""GDB/MI thread-info handler class
|
|
"""
|
|
def __init__(self, verbose=False):
|
|
"""Constructor for GDB/MI result handler
|
|
"""
|
|
super(GDBMIThreadInfoHandler, self).__init__(verbose)
|
|
self.current = False
|
|
self.id = ''
|
|
self.target_id = ''
|
|
self.details = ''
|
|
self.name = ''
|
|
self.frame = ''
|
|
self.state = ''
|
|
self.core = ''
|
|
|
|
def execute(self, ln):
|
|
"""Executes GDB/MI thread-info handler function
|
|
"""
|
|
GDBMIResultHandler.execute(self, ln)
|
|
if self.result_class != self.RC_DONE:
|
|
return
|
|
# simple parsing method
|
|
result = re.search(r'id="(\d+)"', self.result_str)
|
|
if result:
|
|
self.id = result.group(1)
|
|
result = re.search(r'current="\*"', self.result_str)
|
|
if result:
|
|
self.current = True
|
|
result = re.search(r'target-id="([^"]+)"', self.result_str)
|
|
if result:
|
|
self.target_id = result.group(1)
|
|
|
|
|
|
class GDBMIDataEvalHandler(GDBMIResultHandler):
|
|
"""GDB/MI data-evaluate-expression handler class
|
|
"""
|
|
def __init__(self, verbose=False):
|
|
"""Constructor for GDB/MI result handler
|
|
"""
|
|
super(GDBMIDataEvalHandler, self).__init__(verbose)
|
|
self.value = ''
|
|
|
|
def execute(self, ln):
|
|
"""Executes GDB/MI data-evaluate-expression handler function
|
|
"""
|
|
GDBMIResultHandler.execute(self, ln)
|
|
if self.result_class != self.RC_DONE:
|
|
return
|
|
# simple parsing method
|
|
if self.verbose:
|
|
logging.debug("GDBMIDataEvalHandler: result '%s'", self.result_str)
|
|
pos = 0
|
|
r = re.compile(r'([a-zA-Z_]+)=(.+)\,')
|
|
while True:
|
|
m = r.search(self.result_str, pos=pos)
|
|
if not m:
|
|
break
|
|
if m.group(1) == 'value':
|
|
if self.verbose:
|
|
logging.debug("GDBMIDataEvalHandler: found value = '%s'", m.group(2))
|
|
self.value = self.result.group(1)
|
|
return
|
|
pos = m.end(2) + 1
|
|
res_str = self.result_str[pos:]
|
|
res_str = res_str.replace(r'\"', '\'')
|
|
m = re.search(r'value="([^"]+)"', res_str)
|
|
if m:
|
|
if self.verbose:
|
|
logging.debug("GDBMIDataEvalHandler: found value = '%s'", m.group(1))
|
|
self.value = m.group(1)
|
|
|
|
|
|
class GDBMIStreamConsoleHandler(GDBMIOutStreamHandler):
|
|
"""GDB/MI console stream handler class
|
|
"""
|
|
TAG = '~'
|
|
|
|
|
|
def load_aux_elf(elf_path):
|
|
""" Loads auxilary ELF file and composes GDB command to read its symbols
|
|
"""
|
|
elf = None
|
|
sym_cmd = ''
|
|
if os.path.exists(elf_path):
|
|
elf = ESPCoreDumpElfFile(elf_path)
|
|
for s in elf.sections:
|
|
if s.name == '.text':
|
|
sym_cmd = 'add-symbol-file %s 0x%x' % (elf_path, s.addr)
|
|
return (elf, sym_cmd)
|
|
|
|
|
|
def dbg_corefile(args):
|
|
""" Command to load core dump from file or flash and run GDB debug session with it
|
|
"""
|
|
global CLOSE_FDS
|
|
loader = None
|
|
rom_elf,rom_sym_cmd = load_aux_elf(args.rom_elf)
|
|
if not args.core:
|
|
loader = ESPCoreDumpFlashLoader(args.off, port=args.port, baud=args.baud)
|
|
core_fname = loader.create_corefile(args.save_core, exe_name=args.prog, rom_elf=rom_elf)
|
|
if not core_fname:
|
|
logging.error("Failed to create corefile!")
|
|
loader.cleanup()
|
|
return
|
|
else:
|
|
core_fname = args.core
|
|
if args.core_format and args.core_format != 'elf':
|
|
loader = ESPCoreDumpFileLoader(core_fname, args.core_format == 'b64')
|
|
core_fname = loader.create_corefile(args.save_core, exe_name=args.prog, rom_elf=rom_elf)
|
|
if not core_fname:
|
|
logging.error("Failed to create corefile!")
|
|
loader.cleanup()
|
|
return
|
|
|
|
p = subprocess.Popen(bufsize=0,
|
|
args=[args.gdb,
|
|
'--nw', # ignore .gdbinit
|
|
'--core=%s' % core_fname, # core file,
|
|
'-ex', rom_sym_cmd,
|
|
args.prog
|
|
],
|
|
stdin=None, stdout=None, stderr=None,
|
|
close_fds=CLOSE_FDS
|
|
)
|
|
p.wait()
|
|
|
|
if loader:
|
|
if not args.core and not args.save_core:
|
|
loader.remove_tmp_file(core_fname)
|
|
loader.cleanup()
|
|
print('Done!')
|
|
|
|
|
|
def info_corefile(args):
|
|
""" Command to load core dump from file or flash and print it's data in user friendly form
|
|
"""
|
|
global CLOSE_FDS
|
|
|
|
def gdbmi_console_stream_handler(ln):
|
|
sys.stdout.write(ln)
|
|
sys.stdout.flush()
|
|
|
|
def gdbmi_read2prompt(f, out_handlers=None):
|
|
while True:
|
|
ln = f.readline().decode('utf-8').rstrip(' \r\n')
|
|
if ln == '(gdb)':
|
|
break
|
|
elif len(ln) == 0:
|
|
break
|
|
elif out_handlers:
|
|
for h in out_handlers:
|
|
if ln.startswith(out_handlers[h].TAG):
|
|
out_handlers[h].execute(ln)
|
|
break
|
|
|
|
def gdbmi_start(handlers, gdb_cmds):
|
|
gdb_args = [args.gdb,
|
|
'--quiet', # inhibit dumping info at start-up
|
|
'--nx', # inhibit window interface
|
|
'--nw', # ignore .gdbinit
|
|
'--interpreter=mi2', # use GDB/MI v2
|
|
'--core=%s' % core_fname] # core file
|
|
for c in gdb_cmds:
|
|
gdb_args += ['-ex', c]
|
|
gdb_args.append(args.prog)
|
|
p = subprocess.Popen(bufsize=0,
|
|
args=gdb_args,
|
|
stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
|
|
close_fds=CLOSE_FDS)
|
|
gdbmi_read2prompt(p.stdout, handlers)
|
|
return p
|
|
|
|
def gdbmi_cmd_exec(p, handlers, gdbmi_cmd):
|
|
for t in handlers:
|
|
handlers[t].result_class = None
|
|
p.stdin.write(bytearray("%s\n" % gdbmi_cmd, encoding='utf-8'))
|
|
gdbmi_read2prompt(p.stdout, handlers)
|
|
if not handlers[GDBMIResultHandler.TAG].result_class or handlers[GDBMIResultHandler.TAG].result_class == GDBMIResultHandler.RC_EXIT:
|
|
logging.error("GDB exited (%s / %s)!" % (handlers[GDBMIResultHandler.TAG].result_class, handlers[GDBMIResultHandler.TAG].result_str))
|
|
p.wait()
|
|
logging.error("Problem occured! GDB exited, restart it.")
|
|
p = gdbmi_start(handlers, [])
|
|
elif handlers[GDBMIResultHandler.TAG].result_class != GDBMIResultHandler.RC_DONE:
|
|
logging.error("GDB/MI command failed (%s / %s)!" % (handlers[GDBMIResultHandler.TAG].result_class, handlers[GDBMIResultHandler.TAG].result_str))
|
|
return p
|
|
|
|
def gdbmi_getinfo(p, handlers, gdb_cmd):
|
|
return gdbmi_cmd_exec(p, handlers, "-interpreter-exec console \"%s\"" % gdb_cmd)
|
|
|
|
def gdbmi_get_thread_ids(p):
|
|
handlers = {}
|
|
result = GDBMIThreadListIdsHandler(verbose=False)
|
|
handlers[GDBMIResultHandler.TAG] = result
|
|
handlers[GDBMIStreamConsoleHandler.TAG] = GDBMIStreamConsoleHandler(None, verbose=False)
|
|
p = gdbmi_cmd_exec(p, handlers, "-thread-list-ids")
|
|
return p,result.threads,result.current_thread
|
|
|
|
def gdbmi_switch_thread(p, thr_id):
|
|
handlers = {}
|
|
result = GDBMIThreadSelectHandler(verbose=False)
|
|
handlers[GDBMIResultHandler.TAG] = result
|
|
handlers[GDBMIStreamConsoleHandler.TAG] = GDBMIStreamConsoleHandler(None, verbose=False)
|
|
return gdbmi_cmd_exec(p, handlers, "-thread-select %s" % thr_id)
|
|
|
|
def gdbmi_get_thread_info(p, thr_id):
|
|
handlers = {}
|
|
result = GDBMIThreadInfoHandler(verbose=False)
|
|
handlers[GDBMIResultHandler.TAG] = result
|
|
handlers[GDBMIStreamConsoleHandler.TAG] = GDBMIStreamConsoleHandler(None, verbose=False)
|
|
if thr_id:
|
|
cmd = "-thread-info %s" % thr_id
|
|
else:
|
|
cmd = "-thread-info"
|
|
p = gdbmi_cmd_exec(p, handlers, cmd)
|
|
return p,result
|
|
|
|
def gdbmi_data_evaluate_expression(p, expr):
|
|
handlers = {}
|
|
result = GDBMIDataEvalHandler(verbose=False)
|
|
handlers[GDBMIResultHandler.TAG] = result
|
|
handlers[GDBMIStreamConsoleHandler.TAG] = GDBMIStreamConsoleHandler(None, verbose=False)
|
|
p = gdbmi_cmd_exec(p, handlers, "-data-evaluate-expression \"%s\"" % expr)
|
|
return p,result
|
|
|
|
def gdbmi_freertos_get_task_name(p, tcb_addr):
|
|
p,res = gdbmi_data_evaluate_expression(p, "(char*)((TCB_t *)0x%x)->pcTaskName" % tcb_addr)
|
|
result = re.match("0x[a-fA-F0-9]+[^']*'([^']*)'", res.value)
|
|
if result:
|
|
return p,result.group(1)
|
|
return p,''
|
|
|
|
def gdb2freertos_thread_id(gdb_thread_id):
|
|
return int(gdb_thread_id.replace("process ", ""), 0)
|
|
|
|
loader = None
|
|
rom_elf,rom_sym_cmd = load_aux_elf(args.rom_elf)
|
|
if not args.core:
|
|
loader = ESPCoreDumpFlashLoader(args.off, port=args.port, baud=args.baud)
|
|
core_fname = loader.create_corefile(args.save_core, exe_name=args.prog, rom_elf=rom_elf)
|
|
if not core_fname:
|
|
logging.error("Failed to create corefile!")
|
|
loader.cleanup()
|
|
return
|
|
else:
|
|
core_fname = args.core
|
|
if args.core_format and args.core_format != 'elf':
|
|
loader = ESPCoreDumpFileLoader(core_fname, args.core_format == 'b64')
|
|
core_fname = loader.create_corefile(args.save_core, exe_name=args.prog, rom_elf=rom_elf)
|
|
if not core_fname:
|
|
logging.error("Failed to create corefile!")
|
|
loader.cleanup()
|
|
return
|
|
|
|
exe_elf = ESPCoreDumpElfFile(args.prog)
|
|
core_elf = ESPCoreDumpElfFile(core_fname)
|
|
merged_segs = []
|
|
core_segs = core_elf.program_segments
|
|
for s in exe_elf.sections:
|
|
merged = False
|
|
for ps in core_segs:
|
|
if ps.addr <= s.addr and ps.addr + len(ps.data) >= s.addr:
|
|
# sec: |XXXXXXXXXX|
|
|
# seg: |...XXX.............|
|
|
seg_addr = ps.addr
|
|
if ps.addr + len(ps.data) <= s.addr + len(s.data):
|
|
# sec: |XXXXXXXXXX|
|
|
# seg: |XXXXXXXXXXX...|
|
|
# merged: |XXXXXXXXXXXXXX|
|
|
seg_len = len(s.data) + (s.addr - ps.addr)
|
|
else:
|
|
# sec: |XXXXXXXXXX|
|
|
# seg: |XXXXXXXXXXXXXXXXX|
|
|
# merged: |XXXXXXXXXXXXXXXXX|
|
|
seg_len = len(ps.data)
|
|
merged_segs.append((s.name, seg_addr, seg_len, s.attr_str(), True))
|
|
core_segs.remove(ps)
|
|
merged = True
|
|
elif ps.addr >= s.addr and ps.addr <= s.addr + len(s.data):
|
|
# sec: |XXXXXXXXXX|
|
|
# seg: |...XXX.............|
|
|
seg_addr = s.addr
|
|
if (ps.addr + len(ps.data)) >= (s.addr + len(s.data)):
|
|
# sec: |XXXXXXXXXX|
|
|
# seg: |..XXXXXXXXXXX|
|
|
# merged: |XXXXXXXXXXXXX|
|
|
seg_len = len(s.data) + (ps.addr + len(ps.data)) - (s.addr + len(s.data))
|
|
else:
|
|
# sec: |XXXXXXXXXX|
|
|
# seg: |XXXXXX|
|
|
# merged: |XXXXXXXXXX|
|
|
seg_len = len(s.data)
|
|
merged_segs.append((s.name, seg_addr, seg_len, s.attr_str(), True))
|
|
core_segs.remove(ps)
|
|
merged = True
|
|
|
|
if not merged:
|
|
merged_segs.append((s.name, s.addr, len(s.data), s.attr_str(), False))
|
|
|
|
handlers = {}
|
|
handlers[GDBMIResultHandler.TAG] = GDBMIResultHandler(verbose=False)
|
|
handlers[GDBMIStreamConsoleHandler.TAG] = GDBMIStreamConsoleHandler(None, verbose=False)
|
|
p = gdbmi_start(handlers, [rom_sym_cmd])
|
|
extra_note = None
|
|
task_info = []
|
|
for seg in core_elf.aux_segments:
|
|
if seg.type != ESPCoreDumpElfFile.PT_NOTE:
|
|
continue
|
|
note_read = 0
|
|
while note_read < len(seg.data):
|
|
note = Elf32NoteDesc("", 0, None)
|
|
note_read += note.read(seg.data[note_read:])
|
|
if note.type == ESPCoreDumpLoader.ESP_CORE_DUMP_EXTRA_INFO_TYPE and 'EXTRA_INFO' in note.name:
|
|
extra_note = note
|
|
if note.type == ESPCoreDumpLoader.ESP_CORE_DUMP_TASK_INFO_TYPE and 'TASK_INFO' in note.name:
|
|
task_info_struct = EspCoreDumpTaskStatus(buf=note.desc)
|
|
task_info.append(task_info_struct)
|
|
print("===============================================================")
|
|
print("==================== ESP32 CORE DUMP START ====================")
|
|
|
|
handlers[GDBMIResultHandler.TAG].result_class = None
|
|
handlers[GDBMIStreamConsoleHandler.TAG].func = gdbmi_console_stream_handler
|
|
if extra_note:
|
|
extra_info = struct.unpack("<%dL" % (len(extra_note.desc) / struct.calcsize("<L")), extra_note.desc)
|
|
if extra_info[0] == ESPCoreDumpLoader.ESP_COREDUMP_CURR_TASK_MARKER:
|
|
print("\nCrashed task has been skipped.")
|
|
else:
|
|
p,task_name = gdbmi_freertos_get_task_name(p, extra_info[0])
|
|
print("\nCrashed task handle: 0x%x, name: '%s', GDB name: 'process %d'" % (extra_info[0], task_name, extra_info[0]))
|
|
print("\n================== CURRENT THREAD REGISTERS ===================")
|
|
if extra_note:
|
|
exccause = extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EXCCAUSE_IDX + 1]
|
|
exccause_str = xtensa_exception_cause_dict.get(exccause)
|
|
if not exccause_str:
|
|
exccause_str = ("Invalid EXCCAUSE code", "Invalid EXCAUSE description or not found.")
|
|
print("exccause 0x%x (%s)" % (exccause, exccause_str[0]))
|
|
print("excvaddr 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EXCVADDR_IDX + 1])
|
|
print("epc1 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC1_IDX + 1])
|
|
print("epc2 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC2_IDX + 1])
|
|
print("epc3 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC3_IDX + 1])
|
|
print("epc4 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC4_IDX + 1])
|
|
print("epc5 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC5_IDX + 1])
|
|
print("epc6 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC6_IDX + 1])
|
|
print("epc7 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPC7_IDX + 1])
|
|
print("eps2 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPS2_IDX + 1])
|
|
print("eps3 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPS3_IDX + 1])
|
|
print("eps4 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPS4_IDX + 1])
|
|
print("eps5 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPS5_IDX + 1])
|
|
print("eps6 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPS6_IDX + 1])
|
|
print("eps7 0x%x" % extra_info[1 + 2 * ESPCoreDumpElfFile.REG_EPS7_IDX + 1])
|
|
else:
|
|
print("Exception registers have not been found!")
|
|
p = gdbmi_getinfo(p, handlers, "info registers")
|
|
print("\n==================== CURRENT THREAD STACK =====================")
|
|
p = gdbmi_getinfo(p, handlers, "bt")
|
|
if task_info and task_info[0].task_flags != EspCoreDumpTaskStatus.TASK_STATUS_CORRECT:
|
|
print("The current crashed task is corrupted.")
|
|
print("Task #%d info: flags, tcb, stack (%x, %x, %x)." % (task_info[0].task_index,
|
|
task_info[0].task_flags,
|
|
task_info[0].task_tcb_addr,
|
|
task_info[0].task_stack_start))
|
|
print("\n======================== THREADS INFO =========================")
|
|
p = gdbmi_getinfo(p, handlers, "info threads")
|
|
# THREADS STACKS
|
|
p,threads,cur_thread = gdbmi_get_thread_ids(p)
|
|
print()
|
|
for thr_id in threads:
|
|
task_index = int(thr_id) - 1
|
|
p = gdbmi_switch_thread(p, thr_id)
|
|
p,thr_info_res = gdbmi_get_thread_info(p, thr_id)
|
|
if not thr_info_res.target_id:
|
|
print("WARNING: Unable to switch to thread %s\n" % thr_id)
|
|
continue
|
|
tcb_addr = gdb2freertos_thread_id(thr_info_res.target_id)
|
|
p,task_name = gdbmi_freertos_get_task_name(p, tcb_addr)
|
|
print("==================== THREAD %s (TCB: 0x%x, name: '%s') =====================" % (thr_id, tcb_addr, task_name))
|
|
p = gdbmi_getinfo(p, handlers, "bt")
|
|
if task_info and task_info[task_index].task_flags != EspCoreDumpTaskStatus.TASK_STATUS_CORRECT:
|
|
print("The task '%s' is corrupted." % thr_id)
|
|
print("Task #%d info: flags, tcb, stack (%x, %x, %x)." % (task_info[task_index].task_index,
|
|
task_info[task_index].task_flags,
|
|
task_info[task_index].task_tcb_addr,
|
|
task_info[task_index].task_stack_start))
|
|
print()
|
|
print("\n======================= ALL MEMORY REGIONS ========================")
|
|
print("Name Address Size Attrs")
|
|
for ms in merged_segs:
|
|
print("%s 0x%x 0x%x %s" % (ms[0], ms[1], ms[2], ms[3]))
|
|
for cs in core_segs:
|
|
# core dump exec segments are from ROM, other are belong to tasks (TCB or stack)
|
|
if cs.flags & ESPCoreDumpSegment.PF_X:
|
|
seg_name = 'rom.text'
|
|
else:
|
|
seg_name = 'tasks.data'
|
|
print(".coredump.%s 0x%x 0x%x %s" % (seg_name, cs.addr, len(cs.data), cs.attr_str()))
|
|
if args.print_mem:
|
|
print("\n====================== CORE DUMP MEMORY CONTENTS ========================")
|
|
for cs in core_elf.program_segments:
|
|
# core dump exec segments are from ROM, other are belong to tasks (TCB or stack)
|
|
if cs.flags & ESPCoreDumpSegment.PF_X:
|
|
seg_name = 'rom.text'
|
|
else:
|
|
seg_name = 'tasks.data'
|
|
print(".coredump.%s 0x%x 0x%x %s" % (seg_name, cs.addr, len(cs.data), cs.attr_str()))
|
|
p = gdbmi_getinfo(p, handlers, "x/%dx 0x%x" % (old_div(len(cs.data),4), cs.addr))
|
|
|
|
print("\n===================== ESP32 CORE DUMP END =====================")
|
|
print("===============================================================")
|
|
|
|
p.stdin.write(b'q\n')
|
|
p.wait()
|
|
p.stdin.close()
|
|
p.stdout.close()
|
|
|
|
if loader:
|
|
if not args.core and not args.save_core:
|
|
loader.remove_tmp_file(core_fname)
|
|
loader.cleanup()
|
|
print('Done!')
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description='espcoredump.py v%s - ESP32 Core Dump Utility' % __version__, prog='espcoredump')
|
|
|
|
parser.add_argument(
|
|
'--port', '-p',
|
|
help='Serial port device',
|
|
default=os.environ.get('ESPTOOL_PORT', esptool.ESPLoader.DEFAULT_PORT))
|
|
|
|
parser.add_argument(
|
|
'--baud', '-b',
|
|
help='Serial port baud rate used when flashing/reading',
|
|
type=int,
|
|
default=os.environ.get('ESPTOOL_BAUD', esptool.ESPLoader.ESP_ROM_BAUD))
|
|
|
|
subparsers = parser.add_subparsers(
|
|
dest='operation',
|
|
help='Run coredumper {command} -h for additional help')
|
|
|
|
parser_debug_coredump = subparsers.add_parser(
|
|
'dbg_corefile',
|
|
help='Starts GDB debugging session with specified corefile')
|
|
parser_debug_coredump.add_argument('--debug', '-d', help='Log level (0..3)', type=int, default=3)
|
|
parser_debug_coredump.add_argument('--gdb', '-g', help='Path to gdb', default='xtensa-esp32-elf-gdb')
|
|
parser_debug_coredump.add_argument('--core', '-c', help='Path to core dump file (if skipped core dump will be read from flash)', type=str)
|
|
parser_debug_coredump.add_argument('--core-format', '-t', help='(elf, raw or b64). File specified with "-c" is an ELF ("elf"), '
|
|
'raw (raw) or base64-encoded (b64) binary',
|
|
choices=['b64', 'elf', 'raw'], type=str, default='elf')
|
|
parser_debug_coredump.add_argument('--off', '-o', help='Ofsset of coredump partition in flash '
|
|
'(type "make partition_table" to see).', type=int, default=None)
|
|
parser_debug_coredump.add_argument('--save-core', '-s', help='Save core to file. Othwerwise temporary core file will be deleted. '
|
|
'Ignored with "-c"', type=str)
|
|
parser_debug_coredump.add_argument('--rom-elf', '-r', help='Path to ROM ELF file.', type=str, default='esp32_rom.elf')
|
|
parser_debug_coredump.add_argument('prog', help='Path to program\'s ELF binary', type=str)
|
|
|
|
parser_info_coredump = subparsers.add_parser(
|
|
'info_corefile',
|
|
help='Print core dump info from file')
|
|
parser_info_coredump.add_argument('--debug', '-d', help='Log level (0..3)', type=int, default=3)
|
|
parser_info_coredump.add_argument('--gdb', '-g', help='Path to gdb', default='xtensa-esp32-elf-gdb')
|
|
parser_info_coredump.add_argument('--core', '-c', help='Path to core dump file (if skipped core dump will be read from flash)', type=str)
|
|
parser_info_coredump.add_argument('--core-format', '-t', help='(elf, raw or b64). File specified with "-c" is an ELF ("elf"), '
|
|
'raw (raw) or base64-encoded (b64) binary',
|
|
choices=['b64', 'elf', 'raw'], type=str, default='elf')
|
|
parser_info_coredump.add_argument('--off', '-o', help='Offset of coredump partition in flash (type '
|
|
'"make partition_table" to see).', type=int, default=None)
|
|
parser_info_coredump.add_argument('--save-core', '-s', help='Save core to file. Othwerwise temporary core file will be deleted. '
|
|
'Does not work with "-c"', type=str)
|
|
parser_info_coredump.add_argument('--rom-elf', '-r', help='Path to ROM ELF file.', type=str, default='esp32_rom.elf')
|
|
parser_info_coredump.add_argument('--print-mem', '-m', help='Print memory dump', action='store_true')
|
|
parser_info_coredump.add_argument('prog', help='Path to program\'s ELF binary', type=str)
|
|
|
|
# internal sanity check - every operation matches a module function of the same name
|
|
for operation in subparsers.choices:
|
|
assert operation in globals(), "%s should be a module function" % operation
|
|
|
|
args = parser.parse_args()
|
|
|
|
log_level = logging.CRITICAL
|
|
if args.debug == 0:
|
|
log_level = logging.CRITICAL
|
|
elif args.debug == 1:
|
|
log_level = logging.ERROR
|
|
elif args.debug == 2:
|
|
log_level = logging.WARNING
|
|
elif args.debug == 3:
|
|
log_level = logging.INFO
|
|
else:
|
|
log_level = logging.DEBUG
|
|
logging.basicConfig(format='%(levelname)s: %(message)s', level=log_level)
|
|
|
|
print('espcoredump.py v%s' % __version__)
|
|
|
|
operation_func = globals()[args.operation]
|
|
operation_func(args)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
main()
|
|
except ESPCoreDumpError as e:
|
|
print('\nA fatal error occurred: %s' % e)
|
|
sys.exit(2)
|