function::sprint_usyms - Linux
Overview
function::sprint_usyms
is a command-line tool used to generate usable symbols from function names. It is useful in debugging and reverse engineering binaries by extracting function names and addresses from executables and libraries.
Syntax
function::sprint_usyms [OPTIONS] [<binary/library>]
Options/Flags
- -a, –all: Extract all symbols, including non-functions.
- -n, –names: Output only function names.
- -p, –print: Print all attributes for each symbol.
- -v, –verbose: Enable verbose output.
- -h, –help: Print usage information.
Examples
Extract function names from a binary:
function::sprint_usyms /bin/ls
Extract all symbols from a library:
function::sprint_usyms -a /usr/lib/libfoo.so
Print only function names:
function::sprint_usyms -n /usr/bin/python
Common Issues
- Missing symbols: Ensure that the binary or library has debug symbols stripped.
- Incorrect output: Verify that the executable or library is not corrupted.
Integration
function::sprint_usyms
can be integrated with other tools for advanced analysis:
- Use
objdump
to disassemble functions:
objdump -d $(function::sprint_usyms -n /bin/ls)
- Use
gdb
to debug functions:
gdb $(function::sprint_usyms -n /bin/ls)
Related Commands
readelf
objdump
gdb