posix: Replace posix_spawnattr_tc{get,set}pgrp_np with posix_spawn_file_actions_addtcsetpgrp_np

The posix_spawnattr_tcsetpgrp_np works on a file descriptor (the
controlling terminal), so it would make more sense to actually fit
it on the file actions API.

Also, POSIX_SPAWN_TCSETPGROUP is not really required since it is
implicit by the presence of tcsetpgrp file action.

The posix/tst-spawn6.c is also fixed when TTY can is not present.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>

NEWS

@@ -129,10 +129,9 @@ Major new features:
 * On Linux, the epoll_pwait2 function has been added.  It is similar to
   epoll_wait with the difference the timeout has nanoseconds resolution.
 
-* The functions posix_spawnattr_tcsetpgrp_np and posix_spawnattr_tcgetpgrp_np
-  have been added, enabling posix_spawn and posix_spawnp to set the
-  controlling terminal in the new process in a race free manner.  These
-  functions are GNU extensions.
+* The function posix_spawn_file_actions_addtcsetpgrp_np has been added,
+  enabling posix_spawn and posix_spawnp to set the controlling terminal in
+  the new process in a race free manner.  This function is a GNU extension.
 
 * Source fortification (_FORTIFY_SOURCE) level 3 is now available for
   applications compiling with glibc and gcc 12 and later. Level 3 leverages

posix/Makefile

@@ -58,13 +58,13 @@ routines :=								      \
 	spawn_faction_addopen spawn_faction_adddup2 spawn_valid_fd	      \
 	spawn_faction_addchdir spawn_faction_addfchdir			      \
 	spawn_faction_addclosefrom					      \
+	spawn_faction_addtcsetpgrp_np					      \
 	spawnattr_init spawnattr_destroy				      \
 	spawnattr_getdefault spawnattr_setdefault			      \
 	spawnattr_getflags spawnattr_setflags				      \
 	spawnattr_getpgroup spawnattr_setpgroup spawn spawnp spawni	      \
 	spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \
 	spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \
-	spawnattr_tcgetpgrp spawnattr_tcsetpgrp				      \
 	posix_madvise							      \
 	get_child_max sched_cpucount sched_cpualloc sched_cpufree \
 	streams-compat \

posix/Versions

@@ -157,8 +157,7 @@ libc {
     posix_spawn_file_actions_addclosefrom_np;
   }
   GLIBC_2.35 {
-    posix_spawnattr_tcgetpgrp_np;
-    posix_spawnattr_tcsetpgrp_np;
+    posix_spawn_file_actions_addtcsetpgrp_np;
   }
   GLIBC_PRIVATE {
     __libc_fork; __libc_pread; __libc_pwrite;

posix/spawn.h

@@ -34,8 +34,7 @@ typedef struct
   sigset_t __ss;
   struct sched_param __sp;
   int __policy;
-  int __ctty_fd;
-  int __pad[15];
+  int __pad[16];
 } posix_spawnattr_t;
 
 
@@ -60,7 +59,6 @@ typedef struct
 #ifdef __USE_GNU
 # define POSIX_SPAWN_USEVFORK		0x40
 # define POSIX_SPAWN_SETSID		0x80
-# define POSIX_SPAWN_TCSETPGROUP	0x100
 #endif
 
 
@@ -168,19 +166,6 @@ extern int posix_spawnattr_setschedparam (posix_spawnattr_t *__restrict __attr,
 					  __restrict __schedparam)
      __THROW __nonnull ((1, 2));
 
-#ifdef __USE_GNU
-/* Make the spawned process the foreground process group on the terminal
-   associated with FD (which must be a controlling terminal, and still be
-   associated with its session).  */
-extern int posix_spawnattr_tcsetpgrp_np (posix_spawnattr_t *__attr, int fd)
-     __THROW __nonnull ((1));
-
-/* Return the associated terminal FD in the attribute structure.  */
-extern int posix_spawnattr_tcgetpgrp_np (const posix_spawnattr_t *
-					 __restrict __attr, int *fd)
-     __THROW __nonnull ((1, 2));
-#endif
-
 /* Initialize data structure for file attribute for `spawn' call.  */
 extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t *
 					  __file_actions)
@@ -235,6 +220,13 @@ posix_spawn_file_actions_addclosefrom_np (posix_spawn_file_actions_t *,
 					  int __from)
      __THROW __nonnull ((1));
 
+/* Add an action to set the process group of the forground process group
+   associated with the terminal TCFD.  */
+extern int
+posix_spawn_file_actions_addtcsetpgrp_np (posix_spawn_file_actions_t *,
+					  int __tcfd)
+     __THROW __nonnull ((1));
+
 #endif
 
 __END_DECLS

posix/spawn_faction_addtcsetpgrp_np.c

@@ -0,0 +1,50 @@
+/* Add tcsetpgrp to the file action list for posix_spawn.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <spawn.h>
+#include <unistd.h>
+#include <spawn_int.h>
+
+int
+__posix_spawn_file_actions_addtcsetpgrp_np (posix_spawn_file_actions_t
+					    *file_actions, int tcfd)
+{
+  struct __spawn_action *rec;
+
+  if (!__spawn_valid_fd (tcfd))
+    return EBADF;
+
+  /* Allocate more memory if needed.  */
+  if (file_actions->__used == file_actions->__allocated
+      && __posix_spawn_file_actions_realloc (file_actions) != 0)
+    /* This can only mean we ran out of memory.  */
+    return ENOMEM;
+
+  /* Add the new value.  */
+  rec = &file_actions->__actions[file_actions->__used];
+  rec->tag = spawn_do_tcsetpgrp;
+  rec->action.setpgrp_action.fd = tcfd;
+
+  /* Account for the new entry.  */
+  ++file_actions->__used;
+
+  return 0;
+}
+weak_alias (__posix_spawn_file_actions_addtcsetpgrp_np,
+	    posix_spawn_file_actions_addtcsetpgrp_np)

posix/spawn_faction_destroy.c

@@ -40,6 +40,7 @@ __posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *file_actions)
 	case spawn_do_dup2:
 	case spawn_do_fchdir:
 	case spawn_do_closefrom:
+	case spawn_do_tcsetpgrp:
 	  /* No cleanup required.  */
 	  break;
 	}

posix/spawn_int.h

@@ -34,6 +34,7 @@ struct __spawn_action
     spawn_do_chdir,
     spawn_do_fchdir,
     spawn_do_closefrom,
+    spawn_do_tcsetpgrp
   } tag;
 
   union
@@ -66,6 +67,10 @@ struct __spawn_action
     {
       int from;
     } closefrom_action;
+    struct
+    {
+      int fd;
+    } setpgrp_action;
   } action;
 };
 

posix/spawnattr_setflags.c

@@ -26,8 +26,7 @@
 		   | POSIX_SPAWN_SETSCHEDPARAM				      \
 		   | POSIX_SPAWN_SETSCHEDULER				      \
 		   | POSIX_SPAWN_SETSID					      \
-		   | POSIX_SPAWN_USEVFORK				      \
-		   | POSIX_SPAWN_TCSETPGROUP)
+		   | POSIX_SPAWN_USEVFORK)
 
 /* Store flags in the attribute structure.  */
 int

posix/spawnattr_tcgetpgrp.c

@@ -1,26 +0,0 @@
-/* Get the controlling terminal option.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <spawn.h>
-
-int
-posix_spawnattr_tcgetpgrp_np (const posix_spawnattr_t *attr, int *fd)
-{
-  *fd = attr->__ctty_fd;
-  return 0;
-}

posix/spawnattr_tcsetpgrp.c

@@ -1,26 +0,0 @@
-/* Set the controlling terminal option.
-   Copyright (C) 2022 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <spawn.h>
-
-int
-posix_spawnattr_tcsetpgrp_np (posix_spawnattr_t *attr, int fd)
-{
-  attr->__ctty_fd = fd;
-  return 0;
-}

posix/tst-spawn6.c

@@ -29,12 +29,11 @@
 #include <support/check.h>
 #include <support/xunistd.h>
 #include <sys/wait.h>
+#include <stdlib.h>
 
 static int
-handle_restart (const char *argv1)
+handle_restart (const char *argv1, const char *argv2)
 {
-  int fd = xopen (_PATH_TTY, O_RDONLY, 0600);
-
   /* If process group is not changed (POSIX_SPAWN_SETPGROUP), then check
      the creating process one, otherwise check against the process group
      itself.  */
@@ -50,9 +49,20 @@ handle_restart (const char *argv1)
       TEST_VERIFY (pgid != pgrp);
     }
 
-  TEST_COMPARE (tcgetpgrp (fd), pgrp);
+  char *endptr;
+  long int tcfd = strtol (argv2, &endptr, 10);
+  if (*endptr != '\0' || tcfd > INT_MAX)
+    FAIL_EXIT1 ("invalid file descriptor name: %s", argv2);
+  if (tcfd != -1)
+    {
+      TEST_COMPARE (fcntl (tcfd, F_GETFD), -1);
+      TEST_COMPARE (errno, EBADF);
+    }
 
+  int fd = xopen (_PATH_TTY, O_RDONLY, 0600);
+  TEST_COMPARE (tcgetpgrp (fd), pgrp);
   xclose (fd);
+
   return 0;
 }
 
@@ -62,6 +72,7 @@ static int restart;
 
 static void
 run_subprogram (int argc, char *argv[], const posix_spawnattr_t *attr,
+		const posix_spawn_file_actions_t *actions, int tcfd,
 		int exp_err)
 {
   short int flags;
@@ -69,7 +80,9 @@ run_subprogram (int argc, char *argv[], const posix_spawnattr_t *attr,
   bool setpgrp = flags & POSIX_SPAWN_SETPGROUP;
 
   char *spargv[9];
+  TEST_VERIFY_EXIT (((argc - 1) + 4) < array_length (spargv));
   char pgrp[INT_STRLEN_BOUND (pid_t)];
+  char tcfdstr[INT_STRLEN_BOUND (int)];
 
   int i = 0;
   for (; i < argc - 1; i++)
@@ -83,11 +96,12 @@ run_subprogram (int argc, char *argv[], const posix_spawnattr_t *attr,
       snprintf (pgrp, sizeof pgrp, "%d", getpgrp ());
       spargv[i++] = pgrp;
     }
+  snprintf (tcfdstr, sizeof tcfdstr, "%d", tcfd);
+  spargv[i++] = tcfdstr;
   spargv[i] = NULL;
-  TEST_VERIFY_EXIT (i < array_length (spargv));
 
   pid_t pid;
-  TEST_COMPARE (posix_spawn (&pid, argv[1], NULL, attr, spargv, environ),
+  TEST_COMPARE (posix_spawn (&pid, argv[1], actions, attr, spargv, environ),
 		exp_err);
   if (exp_err != 0)
     return;
@@ -114,30 +128,26 @@ do_test (int argc, char *argv[])
    */
 
   if (restart)
-    return handle_restart (argv[1]);
+    return handle_restart (argv[1], argv[2]);
 
-  int tcfd = xopen (_PATH_TTY, O_RDONLY, 0600);
-
-  /* Check getters and setters.  */
-  {
-    posix_spawnattr_t attr;
-    TEST_COMPARE (posix_spawnattr_init (&attr), 0);
-    TEST_COMPARE (posix_spawnattr_tcsetpgrp_np (&attr, tcfd), 0);
-
-    int fd;
-    TEST_COMPARE (posix_spawnattr_tcgetpgrp_np (&attr, &fd), 0);
-    TEST_COMPARE (tcfd, fd);
-  }
+  int tcfd = open64 (_PATH_TTY, O_RDONLY, 0600);
+  if (tcfd == -1)
+    {
+      if (errno == ENXIO)
+	FAIL_UNSUPPORTED ("terminal not available, skipping test");
+      FAIL_EXIT1 ("open64 (\"%s\", 0x%x, 0600): %m", _PATH_TTY, O_RDONLY);
+    }
 
   /* Check setting the controlling terminal without changing the group.  */
   {
     posix_spawnattr_t attr;
     TEST_COMPARE (posix_spawnattr_init (&attr), 0);
-    TEST_COMPARE (posix_spawnattr_setflags (&attr, POSIX_SPAWN_TCSETPGROUP),
+    posix_spawn_file_actions_t actions;
+    TEST_COMPARE (posix_spawn_file_actions_init (&actions), 0);
+    TEST_COMPARE (posix_spawn_file_actions_addtcsetpgrp_np (&actions, tcfd),
 		  0);
-    TEST_COMPARE (posix_spawnattr_tcsetpgrp_np (&attr, tcfd), 0);
 
-    run_subprogram (argc, argv, &attr, 0);
+    run_subprogram (argc, argv, &attr, &actions, -1, 0);
   }
 
   /* Check setting both the controlling terminal and the create a new process
@@ -145,13 +155,28 @@ do_test (int argc, char *argv[])
   {
     posix_spawnattr_t attr;
     TEST_COMPARE (posix_spawnattr_init (&attr), 0);
-    TEST_COMPARE (posix_spawnattr_setflags (&attr, POSIX_SPAWN_TCSETPGROUP
-						   | POSIX_SPAWN_SETPGROUP),
+    TEST_COMPARE (posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETPGROUP), 0);
+    posix_spawn_file_actions_t actions;
+    TEST_COMPARE (posix_spawn_file_actions_init (&actions), 0);
+    TEST_COMPARE (posix_spawn_file_actions_addtcsetpgrp_np (&actions, tcfd),
 		  0);
-    TEST_COMPARE (posix_spawnattr_setpgroup (&attr, 0), 0);
-    TEST_COMPARE (posix_spawnattr_tcsetpgrp_np (&attr, tcfd), 0);
 
-    run_subprogram (argc, argv, &attr, 0);
+    run_subprogram (argc, argv, &attr, &actions, -1, 0);
+  }
+
+  /* Same as before, but check if the addclose file actions closes the terminal
+     file descriptor.  */
+  {
+    posix_spawnattr_t attr;
+    TEST_COMPARE (posix_spawnattr_init (&attr), 0);
+    TEST_COMPARE (posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETPGROUP), 0);
+    posix_spawn_file_actions_t actions;
+    TEST_COMPARE (posix_spawn_file_actions_init (&actions), 0);
+    TEST_COMPARE (posix_spawn_file_actions_addtcsetpgrp_np (&actions, tcfd),
+		  0);
+    TEST_COMPARE (posix_spawn_file_actions_addclose (&actions, tcfd), 0);
+
+    run_subprogram (argc, argv, &attr, &actions, tcfd, 0);
   }
 
   /* Trying to set the controlling terminal after a setsid incurs in a ENOTTY
@@ -159,11 +184,13 @@ do_test (int argc, char *argv[])
   {
     posix_spawnattr_t attr;
     TEST_COMPARE (posix_spawnattr_init (&attr), 0);
-    TEST_COMPARE (posix_spawnattr_setflags (&attr, POSIX_SPAWN_TCSETPGROUP
-						   | POSIX_SPAWN_SETSID), 0);
-    TEST_COMPARE (posix_spawnattr_tcsetpgrp_np (&attr, tcfd), 0);
+    TEST_COMPARE (posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETSID), 0);
+    posix_spawn_file_actions_t actions;
+    TEST_COMPARE (posix_spawn_file_actions_init (&actions), 0);
+    TEST_COMPARE (posix_spawn_file_actions_addtcsetpgrp_np (&actions, tcfd),
+		  0);
 
-    run_subprogram (argc, argv, &attr, ENOTTY);
+    run_subprogram (argc, argv, &attr, &actions, -1, ENOTTY);
   }
 
   xclose (tcfd);

sysdeps/mach/hurd/i386/libc.abilist

@@ -2288,8 +2288,7 @@ GLIBC_2.34 timespec_getres F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 close_range F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/mach/hurd/spawni.c

@@ -390,19 +390,6 @@ retry:
   if (!err && (flags & POSIX_SPAWN_SETPGROUP) != 0)
     err = __proc_setpgrp (proc, new_pid, attrp->__pgrp);
 
-  /* Set the controlling terminal.  */
-  if (!err && (flags & POSIX_SPAWN_TCSETPGROUP) != 0)
-    {
-      pid_t pgrp;
-      /* Check if it is possible to avoid an extra syscall.  */
-      if ((attrp->__flags & POSIX_SPAWN_SETPGROUP) != 0 && attrp->__pgrp != 0)
-	pgrp = attrp->__pgrp;
-      else
-	err = __proc_getpgrp (proc, new_pid, &pgrp);
-      if (!err)
-        err = __tcsetpgrp (attrp->__ctty_fd, pgrp);
-    }
-
   /* Set the effective user and group IDs.  */
   if (!err && (flags & POSIX_SPAWN_RESETIDS) != 0)
     {
@@ -643,6 +630,19 @@ retry:
 	  case spawn_do_closefrom:
 	    err = do_closefrom (action->action.closefrom_action.from);
 	    break;
+
+	  case spawn_do_tcsetpgrp:
+	    {
+	      pid_t pgrp;
+	      /* Check if it is possible to avoid an extra syscall.  */
+	      if ((attrp->__flags & POSIX_SPAWN_SETPGROUP)
+		  != 0 && attrp->__pgrp != 0)
+		pgrp = attrp->__pgrp;
+	      else
+		err = __proc_getpgrp (proc, new_pid, &pgrp);
+	      if (!err)
+		err = __tcsetpgrp (action->action.setpgrp_action.fd, pgrp);
+	    }
 	  }
 
 	if (err)

sysdeps/unix/sysv/linux/aarch64/libc.abilist

@@ -2615,5 +2615,4 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/alpha/libc.abilist

@@ -2712,8 +2712,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/arc/libc.abilist

@@ -2376,5 +2376,4 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/arm/be/libc.abilist

@@ -495,8 +495,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

sysdeps/unix/sysv/linux/arm/le/libc.abilist

@@ -492,8 +492,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
 GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

sysdeps/unix/sysv/linux/csky/libc.abilist

@@ -2651,5 +2651,4 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/hppa/libc.abilist

@@ -2600,8 +2600,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/i386/libc.abilist

@@ -2784,8 +2784,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/ia64/libc.abilist

@@ -2550,8 +2550,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist

@@ -496,8 +496,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _Exit F
 GLIBC_2.4 _IO_2_1_stderr_ D 0x98
 GLIBC_2.4 _IO_2_1_stdin_ D 0x98

sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist

@@ -2727,8 +2727,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/microblaze/be/libc.abilist

@@ -2700,5 +2700,4 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/microblaze/le/libc.abilist

@@ -2697,5 +2697,4 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist

@@ -2692,8 +2692,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist

@@ -2690,8 +2690,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist

@@ -2698,8 +2698,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist

@@ -2601,8 +2601,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/nios2/libc.abilist

@@ -2739,5 +2739,4 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/or1k/libc.abilist

@@ -1379,6 +1379,7 @@ GLIBC_2.35 posix_spawn_file_actions_addclosefrom_np F
 GLIBC_2.35 posix_spawn_file_actions_adddup2 F
 GLIBC_2.35 posix_spawn_file_actions_addfchdir_np F
 GLIBC_2.35 posix_spawn_file_actions_addopen F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.35 posix_spawn_file_actions_destroy F
 GLIBC_2.35 posix_spawn_file_actions_init F
 GLIBC_2.35 posix_spawnattr_destroy F
@@ -1395,8 +1396,6 @@ GLIBC_2.35 posix_spawnattr_setschedparam F
 GLIBC_2.35 posix_spawnattr_setschedpolicy F
 GLIBC_2.35 posix_spawnattr_setsigdefault F
 GLIBC_2.35 posix_spawnattr_setsigmask F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
 GLIBC_2.35 posix_spawnp F
 GLIBC_2.35 ppoll F
 GLIBC_2.35 prctl F

sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist

@@ -2754,8 +2754,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist

@@ -2787,8 +2787,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist

@@ -2509,8 +2509,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist

@@ -2811,5 +2811,4 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist

@@ -2378,5 +2378,4 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist

@@ -2578,5 +2578,4 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F

sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist

@@ -2752,8 +2752,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist

@@ -2546,8 +2546,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/sh/be/libc.abilist

@@ -2607,8 +2607,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/sh/le/libc.abilist

@@ -2604,8 +2604,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist

@@ -2747,8 +2747,7 @@ GLIBC_2.35 __epoll_pwait2_time64 F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 _IO_fprintf F
 GLIBC_2.4 _IO_printf F
 GLIBC_2.4 _IO_sprintf F

sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist

@@ -2573,8 +2573,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/spawni.c

@@ -164,17 +164,6 @@ __spawni_child (void *arguments)
       && __setpgid (0, attr->__pgrp) != 0)
     goto fail;
 
-  /* Set the controlling terminal.  */
-  if ((attr->__flags & POSIX_SPAWN_TCSETPGROUP) != 0)
-    {
-      /* Check if it is possible to avoid an extra syscall.  */
-      pid_t pgrp = (attr->__flags & POSIX_SPAWN_SETPGROUP) != 0
-		    && attr->__pgrp != 0
-		   ? attr->__pgrp : __getpgid (0);
-      if (__tcsetpgrp (attr->__ctty_fd, pgrp) != 0)
-	goto fail;
-    }
-
   /* Set the effective user and group IDs.  */
   if ((attr->__flags & POSIX_SPAWN_RESETIDS) != 0
       && (local_seteuid (__getuid ()) != 0
@@ -279,6 +268,16 @@ __spawni_child (void *arguments)
 		if (r != 0 && !__closefrom_fallback (lowfd, false))
 		  goto fail;
 	      } break;
+
+	    case spawn_do_tcsetpgrp:
+	      {
+		/* Check if it is possible to avoid an extra syscall.  */
+		pid_t pgrp = (attr->__flags & POSIX_SPAWN_SETPGROUP) != 0
+			       && attr->__pgrp != 0
+			     ? attr->__pgrp : __getpgid (0);
+		if (__tcsetpgrp (action->action.setpgrp_action.fd, pgrp) != 0)
+		  goto fail;
+	      }
 	    }
 	}
     }

sysdeps/unix/sysv/linux/x86_64/64/libc.abilist

@@ -2524,8 +2524,7 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
 GLIBC_2.4 __confstr_chk F
 GLIBC_2.4 __fgets_chk F
 GLIBC_2.4 __fgets_unlocked_chk F

sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist

@@ -2630,5 +2630,4 @@ GLIBC_2.34 tss_set F
 GLIBC_2.35 __memcmpeq F
 GLIBC_2.35 _dl_find_object F
 GLIBC_2.35 epoll_pwait2 F
-GLIBC_2.35 posix_spawnattr_tcgetpgrp_np F
-GLIBC_2.35 posix_spawnattr_tcsetpgrp_np F
+GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F