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From: Tom Tromey <tromey@adacore.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tromey@adacore.com>
Subject: [PATCH 10/14] Remove a ui-related memory leak
Date: Fri, 12 Aug 2022 18:54:38 -0600	[thread overview]
Message-ID: <20220813005442.4163512-11-tromey@adacore.com> (raw)
In-Reply-To: <20220813005442.4163512-1-tromey@adacore.com>

gdb_setup_readline makes new streams and assigns to the various stream
members of struct ui.  However, these assignments cause the previous
values to leak.  As far as I can, this code is simply unnecessary and
can be removed -- with the exception of the assignment to gdb_stdtarg,
which is not initialized anywhere else.
---
 gdb/event-top.c | 11 -----------
 gdb/main.c      |  1 +
 2 files changed, 1 insertion(+), 11 deletions(-)

diff --git a/gdb/event-top.c b/gdb/event-top.c
index 3d7bf4ad560..151849c01ea 100644
--- a/gdb/event-top.c
+++ b/gdb/event-top.c
@@ -1328,17 +1328,6 @@ gdb_setup_readline (int editing)
 {
   struct ui *ui = current_ui;
 
-  /* This function is a noop for the sync case.  The assumption is
-     that the sync setup is ALL done in gdb_init, and we would only
-     mess it up here.  The sync stuff should really go away over
-     time.  */
-  if (!batch_silent)
-    gdb_stdout = new pager_file (new stdio_file (ui->outstream));
-  gdb_stderr = new stderr_file (ui->errstream);
-  gdb_stdlog = new timestamped_file (gdb_stderr);
-  gdb_stdtarg = gdb_stderr;
-  gdb_stdtargerr = gdb_stderr;
-
   /* If the input stream is connected to a terminal, turn on editing.
      However, that is only allowed on the main UI, as we can only have
      one instance of readline.  */
diff --git a/gdb/main.c b/gdb/main.c
index 91fa1966738..8d2666ecc95 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -676,6 +676,7 @@ captured_main_1 (struct captured_main_args *context)
   main_ui = new ui (stdin, stdout, stderr);
   current_ui = main_ui;
 
+  gdb_stdtarg = gdb_stderr;
   gdb_stdtargerr = gdb_stderr;
   gdb_stdtargin = gdb_stdin;
 
-- 
2.34.1


  parent reply	other threads:[~2022-08-13  0:54 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-13  0:54 [PATCH 00/14] Minor ui / interp cleanups Tom Tromey
2022-08-13  0:54 ` [PATCH 01/14] Remove some dead code Tom Tromey
2022-08-13  0:54 ` [PATCH 02/14] Free ui::line_buffer Tom Tromey
2022-08-13  0:54 ` [PATCH 03/14] Use ui_out_redirect_pop in more places Tom Tromey
2022-08-13  0:54 ` [PATCH 04/14] Remove the "for moment" comments Tom Tromey
2022-08-13  0:54 ` [PATCH 05/14] Remove obsolete filtering comment Tom Tromey
2022-08-13  0:54 ` [PATCH 06/14] Remove two unused members from mi_interp Tom Tromey
2022-08-13  0:54 ` [PATCH 07/14] Use member initialization in 'struct ui' Tom Tromey
2022-08-13  0:54 ` [PATCH 08/14] Use scoped_restore in safe_parse_type Tom Tromey
2022-08-13  0:54 ` [PATCH 09/14] Remove tui_out_new Tom Tromey
2022-08-13  0:54 ` Tom Tromey [this message]
2022-08-13  0:54 ` [PATCH 11/14] TUI stdout buffering cleanup Tom Tromey
2022-08-13  0:54 ` [PATCH 12/14] Remove a call to clear_interpreter_hooks Tom Tromey
2022-08-13  0:54 ` [PATCH 13/14] Fix "source" with interpreter-exec Tom Tromey
2022-08-13  1:58   ` Enze Li
2022-08-15 17:28     ` Tom Tromey
2022-08-13  0:54 ` [PATCH 14/14] Fix interpreter-exec crash Tom Tromey
2022-08-31 17:13 ` [PATCH 00/14] Minor ui / interp cleanups Tom Tromey

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