function::print_ubacktrace_fileline - Linux

Overview

The print_ubacktrace_fileline command is used for debugging purposes to print the stack backtrace, including the source file and line number. It is primarily used in C++ applications to help identify the source of a crash or unexpected behavior.

Syntax

print_ubacktrace_fileline [--demangle=<demangling_mode>]

Options/Flags

• –demangle=<demangling_mode>: Optionally demangle C++ function names in the backtrace. Valid modes:

  • full: Demangle all function names.
  • symbols: Demangle only function names containing symbols.
  • none: Do not demangle any function names (default).

Examples

# Print the stack backtrace with demangled function names
print_ubacktrace_fileline --demangle=full

# Print the stack backtrace with function names containing symbols demangled
print_ubacktrace_fileline --demangle=symbols

Common Issues

• Missing source file or line number: Ensure that the debugging symbols for your application are available.
• Incorrect demangling mode: Choose the appropriate demangling mode based on the level of detail you need.

Integration

print_ubacktrace_fileline can be used in conjunction with other debugging tools such as GDB or LLDB. It can also be integrated into custom error handling or logging mechanisms.

Related Commands

• gdb: A powerful debugger for C and C++ programs.
• lldb: A modern debugger with a graphical user interface.
• addr2line: Converts addresses to file names and line numbers.