3 files changed, 20 insertions, 1 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 21b648cbb4c..995ceb67b78 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -81,6 +81,14 @@ work right without some adjustment:
 - you can use the new 'package-quickstart' so activation of packages does not
   need to pay attention to 'package-load-list' or 'package-user-dir' any more.
 
+---
+** Emacs now notifies systemd when startup finishes or shutdown begins.
+Units that are ordered after 'emacs.service' will only be started
+after Emacs has finished initialization and is ready for use.
+(If your Emacs is installed in a non-standard location and you copied the
+emacs.service file to eg ~/.config/systemd/user/, you will need to copy
+the new version of the file again.)
+
 
 * Changes in Emacs 27.1
 
diff --git a/etc/emacs.service b/etc/emacs.service
index b29177b120c..dbcb6bc301e 100644
--- a/etc/emacs.service
+++ b/etc/emacs.service
@@ -7,7 +7,7 @@ Description=Emacs text editor
 Documentation=info:emacs man:emacs(1) https://gnu.org/software/emacs/
 
 [Service]
-Type=simple
+Type=notify
 ExecStart=emacs --fg-daemon
 ExecStop=emacsclient --eval "(kill-emacs)"
 Environment=SSH_AUTH_SOCK=%t/keyring/ssh
diff --git a/src/emacs.c b/src/emacs.c
index 861d70735ca..130a9f8fc8e 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -2019,6 +2019,10 @@ all of which are called before Emacs is actually killed.  */
 {
   int exit_code;
 
+#ifdef HAVE_LIBSYSTEMD
+  sd_notify(0, "STOPPING=1");
+#endif /* HAVE_LIBSYSTEMD */
+
   /* Fsignal calls emacs_abort () if it sees that waiting_for_input is
      set.  */
   waiting_for_input = 0;
@@ -2479,6 +2483,13 @@ from the parent process and its tty file descriptors.  */)
     error ("This function can only be called after loading the init files");
 #ifndef WINDOWSNT
 
+  if (daemon_type == 1)
+    {
+#ifdef HAVE_LIBSYSTEMD
+      sd_notify(0, "READY=1");
+#endif /* HAVE_LIBSYSTEMD */
+    }
+
   if (daemon_type == 2)
     {
       int nfd;