function::u64_arg - Linux
Overview
The function::u64_arg command is a function that returns the value of a u64 argument from a function signature. It is primarily used for introspection or debugging purposes.
Syntax
function::u64_arg <function-signature> <argument-index>
Options/Flags
-h, --help Print this help message.
Examples
Get the first u64 argument from a function:
function::u64_arg void foo(u64) 0
Get the third u64 argument from a function that takes multiple u64 arguments:
function::u64_arg void bar(u64, u64, u64) 2
Common Issues
Argument Index Out of Bounds
If the provided argument index is greater than or equal to the number of u64 arguments in the function signature, the command will return -1.
Integration
The function::u64_arg command can be used in combination with other tools to analyze function signatures and gather information about arguments. For example, it can be piped into a script to automatically generate documentation:
function::u64_arg | grep -v -E '(-h|--help)$' | awk '{print "- #" $0}'
Related Commands
function::argfunction::signaturefunction::return_type