/* Serial interface for a pipe to a separate program
- Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "serial.h"
+#include "ser-base.h"
#include "ser-unix.h"
#include "gdb_vfork.h"
* published in UNIX Review, Vol. 6, No. 8.
*/
int pdes[2];
+ int err_pdes[2];
int pid;
+
if (socketpair (AF_UNIX, SOCK_STREAM, 0, pdes) < 0)
return -1;
+ if (socketpair (AF_UNIX, SOCK_STREAM, 0, err_pdes) < 0)
+ {
+ close (pdes[0]);
+ close (pdes[1]);
+ return -1;
+ }
/* Create the child process to run the command in. Note that the
apparent call to vfork() below *might* actually be a call to
{
close (pdes[0]);
close (pdes[1]);
+ close (err_pdes[0]);
+ close (err_pdes[1]);
return -1;
}
+ if (fcntl (err_pdes[0], F_SETFL, O_NONBLOCK) == -1)
+ {
+ close (err_pdes[0]);
+ close (err_pdes[1]);
+ err_pdes[0] = err_pdes[1] = -1;
+ }
+
/* Child. */
if (pid == 0)
{
+ /* We don't want ^c to kill the connection. */
+#ifdef HAVE_SETSID
+ pid_t sid = setsid ();
+ if (sid == -1)
+ signal (SIGINT, SIG_IGN);
+#else
+ signal (SIGINT, SIG_IGN);
+#endif
+
/* re-wire pdes[1] to stdin/stdout */
close (pdes[0]);
if (pdes[1] != STDOUT_FILENO)
close (pdes[1]);
}
dup2 (STDOUT_FILENO, STDIN_FILENO);
+
+ if (err_pdes[0] != -1)
+ {
+ close (err_pdes[0]);
+ dup2 (err_pdes[1], STDERR_FILENO);
+ close (err_pdes[1]);
+ }
#if 0
/* close any stray FD's - FIXME - how? */
/* POSIX.2 B.3.2.2 "popen() shall ensure that any streams
for (old = pidlist; old; old = old->next)
close (fileno (old->fp)); /* don't allow a flush */
#endif
- execl ("/bin/sh", "sh", "-c", name, NULL);
+ execl ("/bin/sh", "sh", "-c", name, (char *) 0);
_exit (127);
}
/* Parent. */
close (pdes[1]);
+ if (err_pdes[1] != -1)
+ close (err_pdes[1]);
/* :end chunk */
state = XMALLOC (struct pipe_state);
state->pid = pid;
scb->fd = pdes[0];
+ scb->error_fd = err_pdes[0];
scb->state = state;
/* If we don't do this, GDB simply exits when the remote side dies. */
pipe_close (struct serial *scb)
{
struct pipe_state *state = scb->state;
+
if (state != NULL)
{
int pid = state->pid;
close (scb->fd);
scb->fd = -1;
+ if (scb->error_fd != -1)
+ close (scb->error_fd);
+ scb->error_fd = -1;
xfree (state);
scb->state = NULL;
kill (pid, SIGTERM);
- /* Might be useful to check that the child does die. */
+ /* Might be useful to check that the child does die,
+ and while we're waiting for it to die print any remaining
+ stderr output. */
}
}
-static struct serial_ops pipe_ops;
-
void
_initialize_ser_pipe (void)
{
struct serial_ops *ops = XMALLOC (struct serial_ops);
- memset (ops, sizeof (struct serial_ops), 0);
+
+ memset (ops, 0, sizeof (struct serial_ops));
ops->name = "pipe";
ops->next = 0;
ops->open = pipe_open;
ops->close = pipe_close;
- ops->readchar = ser_unix_readchar;
- ops->write = ser_unix_write;
- ops->flush_output = ser_unix_nop_flush_output;
- ops->flush_input = ser_unix_flush_input;
- ops->send_break = ser_unix_nop_send_break;
- ops->go_raw = ser_unix_nop_raw;
- ops->get_tty_state = ser_unix_nop_get_tty_state;
- ops->set_tty_state = ser_unix_nop_set_tty_state;
- ops->print_tty_state = ser_unix_nop_print_tty_state;
- ops->noflush_set_tty_state = ser_unix_nop_noflush_set_tty_state;
- ops->setbaudrate = ser_unix_nop_setbaudrate;
- ops->setstopbits = ser_unix_nop_setstopbits;
- ops->drain_output = ser_unix_nop_drain_output;
- ops->async = ser_unix_async;
+ ops->readchar = ser_base_readchar;
+ ops->write = ser_base_write;
+ ops->flush_output = ser_base_flush_output;
+ ops->flush_input = ser_base_flush_input;
+ ops->send_break = ser_base_send_break;
+ ops->go_raw = ser_base_raw;
+ ops->get_tty_state = ser_base_get_tty_state;
+ ops->set_tty_state = ser_base_set_tty_state;
+ ops->print_tty_state = ser_base_print_tty_state;
+ ops->noflush_set_tty_state = ser_base_noflush_set_tty_state;
+ ops->setbaudrate = ser_base_setbaudrate;
+ ops->setstopbits = ser_base_setstopbits;
+ ops->drain_output = ser_base_drain_output;
+ ops->async = ser_base_async;
+ ops->read_prim = ser_unix_read_prim;
+ ops->write_prim = ser_unix_write_prim;
serial_add_interface (ops);
}
projects / deliverable / binutils-gdb.git / blobdiff