FUNCTION::USER_USHORT_WARN(3stap)
π function::user_ushort_warn π
okay bestie, so this is a page from the SystemTap Tapset Reference (that's the 3stap manual section, iykyk) and it's literally about grabbing one tiny little number out of user space. it's giving "small but mighty." let's go π¦
β¨ NAME β¨
function::user_ushort_warn β Retrieves an unsigned short value stored in user space
no cap, that's the whole job. one unsigned short. from user space. with a lil warning if it goes sideways. π
πΈ SYNOPSIS πΈ
user_ushort_warn:long(addr:long)
look at that signature. she's a long, she takes a long. iconic behavior fr fr β
π ARGUMENTS π
addrβ the user space address to retrieve the unsigned short from. like, that's the spot. that's where the lil guy lives. π
π DESCRIPTION π
Returns the unsigned short value from a given user space address.
and here's the part where she's actually kind of sweet: if the user space data is not accessible, she returns zero and warns about the failure β but she does not error. so she's like "hey bestie, couldn't get it, here's a zero, we move π«Ά" instead of fully crashing the vibe.
ngl that "does not error" part is the whole personality of this function. remember it. π
π SEE ALSO π
go read your sister page, she's family. π
kisses, mwah π β this has been your SystemTap Tapset Reference, Ver, September 2026. stay nosy, stay curious, and always check your addresses before you dereference them π§β¨
π¦ where this page comes from
- centos-stream 10: systemtap-client 5.6-3.el10 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- centos-stream 9: systemtap-client 5.6-3.el9 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- fedora 43: systemtap-client 5.6-1.fc43 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- fedora 44: systemtap-client 5.6-1.fc44 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms