FUNCTION::USER\_CHAR\_(3stap) String and data retrieving fun FUNCTION::USER\_CHAR\_(3stap)

# [NAME](#NAME)

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

# [SYNOPSIS](#SYNOPSIS)

```


    user_char_warn:long(addr:long)
```

# [ARGUMENTS](#ARGUMENTS)

*addr*

the user space address to retrieve the char from

# [DESCRIPTION](#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](#SEE_ALSO0)

[*tapset::uconversions*(3stap)](/man/enterprise-packages/systemtap/tapset::uconversions.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: function::user_char_warn(3stap) from systemtap 5.6-r1 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git