* regcache.c (registers_changed_ptid): Don't explictly always

[deliverable/binutils-gdb.git] / gdb / inflow.c

diff --git a/gdb/inflow.c b/gdb/inflow.c
index d7d8c77e2ce028a47c48466e62039cdfd743c53f..99759049746f8aa630062d72bc090afdc5bc1696 100644 (file)
--- a/gdb/inflow.c
+++ b/gdb/inflow.c
@@ -34,6 +34,7 @@
 #include "gdb_select.h"
 
 #include "inflow.h"
+#include "gdbcmd.h"
 
 #ifdef HAVE_SYS_IOCTL_H
 #include <sys/ioctl.h>
@@ -141,10 +142,31 @@ enum
   }
 gdb_has_a_terminal_flag = have_not_checked;
 
+/* The value of the "interactive-mode" setting.  */
+static enum auto_boolean interactive_mode = AUTO_BOOLEAN_AUTO;
+
+/* Implement the "show interactive-mode" option.  */
+
+static void
+show_interactive_mode (struct ui_file *file, int from_tty,
+                       struct cmd_list_element *c,
+                       const char *value)
+{
+  if (interactive_mode == AUTO_BOOLEAN_AUTO)
+    fprintf_filtered (file, "Debugger's interactive mode "
+                           "is %s (currently %s).\n",
+                      value, gdb_has_a_terminal () ? "on" : "off");
+  else
+    fprintf_filtered (file, "Debugger's interactive mode is %s.\n", value);
+}
+
 /* Does GDB have a terminal (on stdin)?  */
 int
 gdb_has_a_terminal (void)
 {
+  if (interactive_mode != AUTO_BOOLEAN_AUTO)
+    return interactive_mode == AUTO_BOOLEAN_TRUE;
+
   switch (gdb_has_a_terminal_flag)
     {
     case yes:
@@ -409,8 +431,8 @@ terminal_ours_1 (int output_only)
          mode, to avoid flushing input.  We need to do the same thing
          regardless of output_only, because we don't have separate
          terminal_is_ours and terminal_is_ours_for_output flags.  It's OK,
-         though, since readline will deal with raw mode when/if it needs to.
-       */
+         though, since readline will deal with raw mode when/if it needs
+         to.  */
 
       serial_noflush_set_tty_state (stdin_serial, our_terminal_info.ttystate,
                                    tinfo->ttystate);
@@ -566,7 +588,7 @@ child_terminal_info (char *args, int from_tty)
 #ifndef O_ACCMODE
 #define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
 #endif
-    /* (O_ACCMODE) parens are to avoid Ultrix header file bug */
+    /* (O_ACCMODE) parens are to avoid Ultrix header file bug.  */
     switch (flags & (O_ACCMODE))
       {
       case O_RDONLY:
@@ -661,7 +683,7 @@ new_tty (void)
 #ifdef TIOCNOTTY
   /* Disconnect the child process from our controlling terminal.  On some
      systems (SVR4 for example), this may cause a SIGTTOU, so temporarily
-     ignore SIGTTOU. */
+     ignore SIGTTOU.  */
   tty = open ("/dev/tty", O_RDWR);
   if (tty > 0)
     {
@@ -700,7 +722,7 @@ new_tty (void)
   if (ioctl (tty, TIOCSCTTY, 0) == -1)
     /* Mention GDB in warning because it will appear in the inferior's
        terminal instead of GDB's.  */
-    warning ("GDB: Failed to set controlling terminal: %s",
+    warning (_("GDB: Failed to set controlling terminal: %s"),
             safe_strerror (errno));
 #endif
 
@@ -732,7 +754,7 @@ new_tty_postfork (void)
 
 \f
 /* Call set_sigint_trap when you need to pass a signal on to an attached
-   process when handling SIGINT */
+   process when handling SIGINT.  */
 
 static void
 pass_signal (int signo)
@@ -789,7 +811,7 @@ create_tty_session (void)
 
   ret = setsid ();
   if (ret == -1)
-    warning ("Failed to create new terminal session: setsid: %s",
+    warning (_("Failed to create new terminal session: setsid: %s"),
             safe_strerror (errno));
 
   return ret;
@@ -853,6 +875,20 @@ _initialize_inflow (void)
   add_info ("terminal", term_info,
            _("Print inferior's saved terminal status."));
 
+  add_setshow_auto_boolean_cmd ("interactive-mode", class_support,
+                                &interactive_mode, _("\
+Set whether GDB's standard input is a terminal."), _("\
+Show whether GDB's standard input is a terminal."), _("\
+If on, GDB assumes that standard input is a terminal.  In practice, it\n\
+means that GDB should wait for the user to answer queries associated to\n\
+commands entered at the command prompt.  If off, GDB assumes that standard\n\
+input is not a terminal, and uses the default answer to all queries.\n\
+If auto (the default), determine which mode to use based on the standard\n\
+input settings."),
+                        NULL,
+                        show_interactive_mode,
+                        &setlist, &showlist);
+
   terminal_is_ours = 1;
 
   /* OK, figure out whether we have job control.  If neither termios nor
@@ -867,7 +903,7 @@ _initialize_inflow (void)
 #ifdef _SC_JOB_CONTROL
   job_control = sysconf (_SC_JOB_CONTROL);
 #else
-  job_control = 0;             /* have to assume the worst */
+  job_control = 0;             /* Have to assume the worst.  */
 #endif /* _SC_JOB_CONTROL */
 #endif /* _POSIX_JOB_CONTROL */
 #endif /* HAVE_TERMIOS */