python - 运行 gdb 时获取 python 异常

Question

当我尝试运行 gdb 时，我看到以下 python 异常。想知道1.这些python异常是什么意思2. 它是否会影响 gdb 调试或 bt 分析。3. 如何解决这些错误。

Traceback (most recent call last):
  File "/usr/share/gdb/python/gdb/__init__.py", line 144, in auto_load_packages
    __import__(modname)
  File "/usr/share/gdb/python/gdb/function/strfns.py", line 105, in <module>
    _MemEq()
  File "/usr/share/gdb/python/gdb/function/strfns.py", line 33, in __init__
    super(_MemEq, self).__init__("_memeq")
LookupError: no codec search functions registered: can't find encoding

Python Exception <type 'exceptions.LookupError'> no codec search functions registered: can't find encoding:
Python Exception <type 'exceptions.LookupError'> no codec search functions registered: can't find encoding:
Python Exception <type 'exceptions.LookupError'> no codec search functions registered: can't find encoding:
Traceback (most recent call last):
  File "/usr/share/gdb/python/gdb/__init__.py", line 144, in auto_load_packages
    __import__(modname)
  File "/usr/share/gdb/python/gdb/command/prompt.py", line 65, in <module>
    _ExtendedPrompt()
  File "/usr/share/gdb/python/gdb/command/prompt.py", line 44, in __init__
    self.value = ''
LookupError: no codec search functions registered: can't find encoding


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Answer 1

what these python exceptions mean

GDB(当使用 --enable-python(默认)编译时)加载某些内置的嵌入式 Python 脚本。此加载失败，因为未执行 GDB make install，或者(此处更可能)Python 安装不完整。

will it impact anyway in gdb debugging or bt analysis.

是的:GDB 依赖于许多嵌入式 Python 功能，您可能会在几乎每个命令中遇到这些异常。

How to resolve these errors.

确保将 GDB 和 Python 的完整安装(包括 data 子目录和 .pyc 文件)复制到运行 GDB 的系统。

或者，使用 --disable-python 配置 GDB 也应该清除这些错误。