auparse_normalize_functions - Linux

Overview

auparse_normalize_functions is a Linux command that normalizes a set of function names to a canonical format. It is primarily used to standardize function names in ELF files for analysis and comparison purposes.

Syntax

auparse_normalize_functions [options] <ELF file>

Options/Flags

• -o, –output : Output the normalized function names to a file. Default: stdout
• -s, –show-mapping: Display a mapping between original and normalized function names to stdout
• -f, –force: Overwrite output file if it exists

Examples

Simple usage:

auparse_normalize_functions my_binary.elf

Output to a file:

auparse_normalize_functions -o normalized_functions.txt my_binary.elf

Display mapping:

auparse_normalize_functions -s my_binary.elf

Common Issues

• Duplicate function names: If multiple functions in the input ELF file have the same original name, the normalized name will be appended with a number to differentiate them.
• Unsupported functions: The command may not recognize or normalize all types of function names, such as dynamically generated functions or functions with unconventional naming conventions.

Integration

Combining with objdump:

objdump -d my_binary.elf | auparse_normalize_functions -

Using in scripts:

#!/bin/bash
for file in *.elf; do
  normalized_functions=$(auparse_normalize_functions -o /dev/null $file)
  echo "Normalized functions for $file:"
  echo "$normalized_functions"
done

Related Commands

• readelf: Display information about ELF files
• objdump: Display assembly code and other information from ELF files
• nm: List symbols in ELF files