hurd: Fix calling pthread_sigmask when no thread was created yet.

debian/patches/hurd-i386/git-pthread_sigmask_nothread.diff

debian/changelog

@@ -9,6 +9,8 @@ glibc (2.41-4) UNRELEASED; urgency=medium
   [ Samuel Thibault ]
   * debian/patches/hurd-i386/git-pthread_once.diff: Move pthread_once symbol
     to libc, to fix bison.
+  * debian/patches/hurd-i386/git-pthread_sigmask_nothread.diff: Fix calling
+    pthread_sigmask when no thread was created yet.
  -- Aurelien Jarno <aurel32@debian.org>  Sat, 01 Mar 2025 23:26:33 +0100

debian/patches/hurd-i386/git-pthread_sigmask_nothread.diff

+Upstream 2.42 has a much more involved cleanup fix which in the end
+boils down to this.
+
+Index: glibc-upstream/sysdeps/mach/hurd/htl/pt-sigstate.c
+===================================================================
+--- glibc-upstream.orig/sysdeps/mach/hurd/htl/pt-sigstate.c
++++ glibc-upstream/sysdeps/mach/hurd/htl/pt-sigstate.c
+@@ -36,7 +36,10 @@ __pthread_sigstate (struct __pthread *th
+   if (set != NULL)
+     new = *set;
+ 
+-  ss = _hurd_thread_sigstate (thread->kernel_thread);
++  if (thread == _pthread_self ())
++    ss = _hurd_self_sigstate ();
++  else
++    ss = _hurd_thread_sigstate (thread->kernel_thread);
+   assert (ss);
+ 
+   _hurd_sigstate_lock (ss);

debian/patches/series

@@ -29,6 +29,7 @@ hurd-i386/git-proc_reauth.diff
 # Commited for 2.42
 hurd-i386/git-mig-strncpy.diff
 hurd-i386/local-pthread_once.diff
+hurd-i386/git-pthread_sigmask_nothread.diff
 
 hurd-i386/local-intr-msg-clobber.diff
 hurd-i386/local-enable-ldconfig.diff