From 2e64cfd98c18a51f201719bd7faed0c24caabc82 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Thu, 12 Sep 2024 15:31:57 -0700
Subject: [PATCH] Preinitialize fatal_act.sa_hander

* src/util.c (fatal_act): Initialize .sa_handler statically ...
(init_signals): ... rather than dynamically.
---
 src/util.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/util.c b/src/util.c
index a23d1ee..42c6d4e 100644
--- a/src/util.c
+++ b/src/util.c
@@ -1190,7 +1190,7 @@ enum { NUM_SIGS = sizeof sigs / sizeof *sigs };
 
 /* How to handle signals.  fatal_act.sa_mask lists signals to be
    blocked when handling signals or in a critical section.  */
-static struct sigaction fatal_act;
+static struct sigaction fatal_act = { .sa_handler = fatal_exit };
 
 void
 init_signals (void)
@@ -1202,7 +1202,6 @@ init_signals (void)
   if (sigprocmask (SIG_BLOCK, nullptr, &initial_signal_mask) < 0)
     return;
 
-  fatal_act.sa_handler = fatal_exit;
   sigemptyset (&fatal_act.sa_mask);
   for (int i = 0; i < NUM_SIGS; i++)
     {