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From: Simon Marchi <simon.marchi@polymtl.ca>
To: gdb-patches@sourceware.org
Cc: Simon Marchi <simon.marchi@polymtl.ca>
Subject: [PATCH 2/3] Pass inferior to terminal_inferior
Date: Tue, 16 Oct 2018 03:38:00 -0000	[thread overview]
Message-ID: <20181016033835.17594-2-simon.marchi@polymtl.ca> (raw)
In-Reply-To: <20181016033835.17594-1-simon.marchi@polymtl.ca>

Same as the previous patch, but for the terminal_inferior method.

gdb/ChangeLog:

	* target.h (struct target_ops) <terminal_inferior>: Add inferior
	pointer parameter.
	* target.c (target_terminal::inferior): Pass inferior to
	terminal_inferior.
	* target-delegates.c: Re-generate.
	* inf-child.h (inf_child_target) <terminal_inferior>: Add
	inferior pointer parameter.
	* inf-child.c (inf_child_target::terminal_inferior): Likewise.
	* inferior.h (child_terminal_inferior): Likewise.
	* inflow.c (child_terminal_inferior): Likewise.
	* remote.c (struct remote_target) <terminal_inferior>: Likewise.
	(remote_target::terminal_inferior): Likewise.
---
 gdb/inf-child.c        |  4 ++--
 gdb/inf-child.h        |  2 +-
 gdb/inferior.h         |  2 +-
 gdb/inflow.c           |  3 +--
 gdb/remote.c           |  4 ++--
 gdb/target-delegates.c | 15 ++++++++-------
 gdb/target.c           |  5 ++---
 gdb/target.h           |  9 ++++++++-
 8 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/gdb/inf-child.c b/gdb/inf-child.c
index 94f42ec2adc0..f02720028211 100644
--- a/gdb/inf-child.c
+++ b/gdb/inf-child.c
@@ -108,9 +108,9 @@ inf_child_target::terminal_init ()
 }
 
 void
-inf_child_target::terminal_inferior ()
+inf_child_target::terminal_inferior (inferior *inf)
 {
-  child_terminal_inferior (this);
+  child_terminal_inferior (this, inf);
 }
 
 void
diff --git a/gdb/inf-child.h b/gdb/inf-child.h
index b0625391ebb2..c544ceaf520e 100644
--- a/gdb/inf-child.h
+++ b/gdb/inf-child.h
@@ -45,7 +45,7 @@ public:
 
   bool supports_terminal_ours () override;
   void terminal_init () override;
-  void terminal_inferior () override;
+  void terminal_inferior (inferior *inf) override;
   void terminal_save_inferior (inferior *inf) override;
   void terminal_ours_for_output () override;
   void terminal_ours () override;
diff --git a/gdb/inferior.h b/gdb/inferior.h
index d09263e34bef..badd82e17c35 100644
--- a/gdb/inferior.h
+++ b/gdb/inferior.h
@@ -152,7 +152,7 @@ extern void child_terminal_ours (struct target_ops *self);
 
 extern void child_terminal_ours_for_output (struct target_ops *self);
 
-extern void child_terminal_inferior (struct target_ops *self);
+extern void child_terminal_inferior (struct target_ops *self, inferior *inf);
 
 extern void child_terminal_save_inferior (struct target_ops *self,
 					  inferior *inf);
diff --git a/gdb/inflow.c b/gdb/inflow.c
index 372ef7844f01..e355f4aa9fc5 100644
--- a/gdb/inflow.c
+++ b/gdb/inflow.c
@@ -342,7 +342,7 @@ sharing_input_terminal (inferior *inf)
    preparation for starting or resuming the inferior.  */
 
 void
-child_terminal_inferior (struct target_ops *self)
+child_terminal_inferior (struct target_ops *self, inferior *inf)
 {
   /* If we resume more than one inferior in the foreground on GDB's
      terminal, then the first inferior's terminal settings "win".
@@ -353,7 +353,6 @@ child_terminal_inferior (struct target_ops *self)
   if (gdb_tty_state == target_terminal_state::is_inferior)
     return;
 
-  inferior *inf = current_inferior ();
   terminal_info *tinfo = get_inflow_inferior_data (inf);
 
   if (gdb_has_a_terminal ()
diff --git a/gdb/remote.c b/gdb/remote.c
index c53553af5bda..268cce84afa8 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -557,7 +557,7 @@ public:
 
   int can_do_single_step () override;
 
-  void terminal_inferior () override;
+  void terminal_inferior (inferior *inf) override;
 
   void terminal_ours () override;
 
@@ -6812,7 +6812,7 @@ remote_target::interrupt_query ()
    is required.  */
 
 void
-remote_target::terminal_inferior ()
+remote_target::terminal_inferior (inferior *inf)
 {
   /* NOTE: At this point we could also register our selves as the
      recipient of all input.  Any characters typed could then be
diff --git a/gdb/target-delegates.c b/gdb/target-delegates.c
index f2b352c44888..1d1bd0ae4234 100644
--- a/gdb/target-delegates.c
+++ b/gdb/target-delegates.c
@@ -44,7 +44,7 @@ struct dummy_target : public target_ops
   int can_do_single_step () override;
   bool supports_terminal_ours () override;
   void terminal_init () override;
-  void terminal_inferior () override;
+  void terminal_inferior (inferior *arg0) override;
   void terminal_save_inferior (inferior *arg0) override;
   void terminal_ours_for_output () override;
   void terminal_ours () override;
@@ -211,7 +211,7 @@ struct debug_target : public target_ops
   int can_do_single_step () override;
   bool supports_terminal_ours () override;
   void terminal_init () override;
-  void terminal_inferior () override;
+  void terminal_inferior (inferior *arg0) override;
   void terminal_save_inferior (inferior *arg0) override;
   void terminal_ours_for_output () override;
   void terminal_ours () override;
@@ -1229,22 +1229,23 @@ debug_target::terminal_init ()
 }
 
 void
-target_ops::terminal_inferior ()
+target_ops::terminal_inferior (inferior *arg0)
 {
-  this->beneath ()->terminal_inferior ();
+  this->beneath ()->terminal_inferior (arg0);
 }
 
 void
-dummy_target::terminal_inferior ()
+dummy_target::terminal_inferior (inferior *arg0)
 {
 }
 
 void
-debug_target::terminal_inferior ()
+debug_target::terminal_inferior (inferior *arg0)
 {
   fprintf_unfiltered (gdb_stdlog, "-> %s->terminal_inferior (...)\n", this->beneath ()->shortname ());
-  this->beneath ()->terminal_inferior ();
+  this->beneath ()->terminal_inferior (arg0);
   fprintf_unfiltered (gdb_stdlog, "<- %s->terminal_inferior (", this->beneath ()->shortname ());
+  target_debug_print_inferior_p (arg0);
   fputs_unfiltered (")\n", gdb_stdlog);
 }
 
diff --git a/gdb/target.c b/gdb/target.c
index 93d16b90f179..631b2c3b0f12 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -444,7 +444,7 @@ target_terminal::inferior (void)
 
   if (inf->terminal_state != target_terminal_state::is_inferior)
     {
-      current_top_target ()->terminal_inferior ();
+      current_top_target ()->terminal_inferior (inf);
       inf->terminal_state = target_terminal_state::is_inferior;
     }
 
@@ -479,8 +479,7 @@ target_terminal::restore_inferior (void)
       {
 	if (inf->terminal_state == target_terminal_state::is_ours_for_output)
 	  {
-	    set_current_inferior (inf);
-	    current_top_target ()->terminal_inferior ();
+	    current_top_target ()->terminal_inferior (inf);
 	    inf->terminal_state = target_terminal_state::is_inferior;
 	  }
       }
diff --git a/gdb/target.h b/gdb/target.h
index c37405205a0a..310c942bbe5b 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -581,7 +581,14 @@ struct target_ops
       TARGET_DEFAULT_RETURN (false);
     virtual void terminal_init ()
       TARGET_DEFAULT_IGNORE ();
-    virtual void terminal_inferior ()
+
+    /* If INF shares a terminal with GDB, restore the saved terminal settings
+       associated to INF (see terminal_save_inferior) to the current
+       terminal.  In a scenario where multiple inferiors share GDB's terminal,
+       don't apply the settings of another inferior's settings are currently
+       applied (in other words, the first inferior's settings win and should not
+       be overwritten).  */
+    virtual void terminal_inferior (inferior *inf)
       TARGET_DEFAULT_IGNORE ();
 
     /* If INF shares a terminal with GDB, save the current terminal settings
-- 
2.19.1


  reply	other threads:[~2018-10-16  3:38 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-16  3:38 [PATCH 1/3] Pass inferior to terminal_save_inferior Simon Marchi
2018-10-16  3:38 ` Simon Marchi [this message]
2018-10-22 20:54   ` [PATCH 2/3] Pass inferior to terminal_inferior Pedro Alves
2018-10-23  9:14     ` Simon Marchi
2018-10-16  3:38 ` [PATCH 3/3] Avoid GDB SIGTTOU on catch exec + set follow-exec-mode new (PR 23368) Simon Marchi
     [not found]   ` <37bde004-853a-3ccc-3777-03cc43b36147@redhat.com>
2018-10-20 15:14     ` Simon Marchi
2018-10-20 15:38       ` Simon Marchi
2018-10-22 20:56         ` Pedro Alves
2018-10-23  9:49           ` Simon Marchi
2018-10-23 10:55             ` Pedro Alves
     [not found]             ` <mvmftwvr8ao.fsf@suse.de>
2018-10-24 14:08               ` Simon Marchi
2018-10-22 20:54 ` [PATCH 1/3] Pass inferior to terminal_save_inferior Pedro Alves
2018-10-23  9:01   ` Simon Marchi
2018-10-23 11:11     ` Pedro Alves
2018-10-23 20:56       ` Simon Marchi

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