---
name: "function::user_char_warn"
section: "3stap"
platform: "linux"
package: "systemtap-doc"
version: "5.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/function::user_char_warn"
---

# function::user\_char\_warn(3stap)

Retrieves a char value stored in user space

## NAME

function::user\_char\_warn - Retrieves a char value stored in user space

## SYNOPSIS

```
    user_char_warn:long(addr:long)
```

## ARGUMENTS

*addr*

the user space address to retrieve the char from

## DESCRIPTION

Returns the char value from a given user space address. Returns zero when user space data is not accessible and warns about the failure (but does not error).

## SEE ALSO0

[*tapset::uconversions*(3stap)](/tapset::uconversions/3stap.md)