From 4e194dd1697309a5cda8e2f637d4eb50b031ddfc Mon Sep 17 00:00:00 2001
From: Weilin Du <108666168+LamentXU123@users.noreply.github.com>
Date: Fri, 10 Oct 2025 23:28:38 +0800
Subject: [PATCH] gh-139843: Document signals (SIGSTOP, SIGVTALRM, SIGPROF) to
 fix sphinx references (GH-139896) (cherry picked from commit
 302f19d1f1880dd29deb5ad02fa2c21639319559)

Co-authored-by: Weilin Du <108666168+LamentXU123@users.noreply.github.com>
---
 Doc/library/signal.rst | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Doc/library/signal.rst b/Doc/library/signal.rst
index 7ef7bbe8d96839..d030b75bb19038 100644
--- a/Doc/library/signal.rst
+++ b/Doc/library/signal.rst
@@ -205,6 +205,12 @@ The variables defined in the :mod:`signal` module are:
 
    .. availability:: Unix.
 
+.. data:: SIGPROF
+
+   Profiling timer expired.
+
+   .. availability:: Unix.
+
 .. data:: SIGQUIT
 
    Terminal quit signal.
@@ -215,6 +221,10 @@ The variables defined in the :mod:`signal` module are:
 
    Segmentation fault: invalid memory reference.
 
+.. data:: SIGSTOP
+
+   Stop executing (cannot be caught or ignored).
+
 .. data:: SIGSTKFLT
 
    Stack fault on coprocessor. The Linux kernel does not raise this signal: it
@@ -243,6 +253,12 @@ The variables defined in the :mod:`signal` module are:
 
    .. availability:: Unix.
 
+.. data:: SIGVTALRM
+
+   Virtual timer expired.
+
+   .. availability:: Unix.
+
 .. data:: SIGWINCH
 
    Window resize signal.