Replace the sync_execution global with a new enum prompt_state tristate

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

diff --git a/gdb/target.c b/gdb/target.c
index d580983c4fa6b4ded042fe63799fa3c1176aae8c..6f69ac37a1f4538fedbaaa2291a3d454ee641e77 100644 (file)
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -43,6 +43,8 @@
 #include "agent.h"
 #include "auxv.h"
 #include "target-debug.h"
+#include "top.h"
+#include "event-top.h"
 
 static void target_info (char *, int);
 
@@ -477,11 +479,24 @@ target_terminal_is_ours (void)
 void
 target_terminal_inferior (void)
 {
+  struct ui *ui = current_ui;
+
   /* A background resume (``run&'') should leave GDB in control of the
-     terminal.  Use target_can_async_p, not target_is_async_p, since at
-     this point the target is not async yet.  However, if sync_execution
-     is not set, we know it will become async prior to resume.  */
-  if (target_can_async_p () && !sync_execution)
+     terminal.  */
+  if (ui->prompt_state != PROMPT_BLOCKED)
+    return;
+
+  /* Always delete the current UI's input file handler, regardless of
+     terminal_state, because terminal_state is only valid for the main
+     UI.  */
+  delete_file_handler (ui->input_fd);
+
+  /* Since we always run the inferior in the main console (unless "set
+     inferior-tty" is in effect), when some UI other than the main one
+     calls target_terminal_inferior/target_terminal_inferior, then we
+     only register/unregister the UI's input from the event loop, but
+     leave the main UI's terminal settings as is.  */
+  if (ui != main_ui)
     return;
 
   if (terminal_state == terminal_is_inferior)
@@ -503,6 +518,17 @@ target_terminal_inferior (void)
 void
 target_terminal_ours (void)
 {
+  struct ui *ui = current_ui;
+
+  /* Always add the current UI's input file handler, regardless of
+     terminal_state, because terminal_state is only valid for the main
+     UI.  */
+  add_file_handler (ui->input_fd, stdin_event_handler, ui);
+
+  /* See target_terminal_inferior.  */
+  if (ui != main_ui)
+    return;
+
   if (terminal_state == terminal_is_ours)
     return;
 
@@ -515,6 +541,12 @@ target_terminal_ours (void)
 void
 target_terminal_ours_for_output (void)
 {
+  struct ui *ui = current_ui;
+
+  /* See target_terminal_inferior.  */
+  if (ui != main_ui)
+    return;
+
   if (terminal_state != terminal_is_inferior)
     return;
   (*current_target.to_terminal_ours_for_output) (&current_target);
@@ -1535,8 +1567,6 @@ target_memory_map (void)
   VEC(mem_region_s) *result;
   struct mem_region *last_one, *this_one;
   int ix;
-  struct target_ops *t;
-
   result = current_target.to_memory_map (&current_target);
   if (result == NULL)
     return NULL;
@@ -2230,8 +2260,6 @@ target_preopen (int from_tty)
 void
 target_detach (const char *args, int from_tty)
 {
-  struct target_ops* t;
-  
   if (gdbarch_has_global_breakpoints (target_gdbarch ()))
     /* Don't remove global breakpoints here.  They're removed on
        disconnection from the target.  */
@@ -2289,8 +2317,6 @@ target_thread_name (struct thread_info *info)
 void
 target_resume (ptid_t ptid, int step, enum gdb_signal signal)
 {
-  struct target_ops *t;
-
   target_dcache_invalidate ();
 
   current_target.to_resume (&current_target, ptid, step, signal);
@@ -2793,7 +2819,7 @@ static int lowest_closed_fd;
 static int
 acquire_fileio_fd (struct target_ops *t, int fd)
 {
-  fileio_fh_t *fh, buf;
+  fileio_fh_t *fh;
 
   gdb_assert (!is_closed_fileio_fh (fd));
 
@@ -3378,14 +3404,6 @@ default_target_pass_ctrlc (struct target_ops *ops)
   target_interrupt (inferior_ptid);
 }
 
-/* See target.h.  */
-
-void
-target_check_pending_interrupt (void)
-{
-  (*current_target.to_check_pending_interrupt) (&current_target);
-}
-
 /* See target/target.h.  */
 
 void
@@ -3507,8 +3525,6 @@ target_fetch_registers (struct regcache *regcache, int regno)
 void
 target_store_registers (struct regcache *regcache, int regno)
 {
-  struct target_ops *t;
-
   if (!may_write_registers)
     error (_("Writing to registers is not allowed (regno %d)"), regno);