From: Tom Tromey <tromey@redhat.com>
Date: Wed, 24 Jul 2002 17:58:46 +0000 (+0000)
Subject: 	* defs.h (gdb_readline_wrapper): Declare.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b4f5539f0460e420dddade172f3d17c91470d254;p=binutils-gdb.git

	* defs.h (gdb_readline_wrapper): Declare.
	* utils.c (prompt_for_continue): Use gdb_readline_wrapper.
	* tracepoint.c (read_actions): Use gdb_readline_wrapper.
	* top.c (gdb_readline_wrapper): New function.
	(command_line_input): Use it.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a3bdf19627f..3b2b94e944f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2002-07-24  Tom Tromey  <tromey@redhat.com>
+
+	* defs.h (gdb_readline_wrapper): Declare.
+	* utils.c (prompt_for_continue): Use gdb_readline_wrapper.
+	* tracepoint.c (read_actions): Use gdb_readline_wrapper.
+	* top.c (gdb_readline_wrapper): New function.
+	(command_line_input): Use it.
+
 2002-07-24  Andrew Cagney  <cagney@redhat.com>
 
 	* regcache.h (regcache_raw_read, regcache_raw_write): Replace
diff --git a/gdb/defs.h b/gdb/defs.h
index 94a1ac80423..7dea2b73397 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -535,6 +535,8 @@ extern char *skip_quoted (char *);
 
 extern char *gdb_readline (char *);
 
+extern char *gdb_readline_wrapper (char *);
+
 extern char *command_line_input (char *, int, char *);
 
 extern void print_prompt (void);
diff --git a/gdb/top.c b/gdb/top.c
index 10afc64037f..ee3daf06784 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -947,6 +947,29 @@ static int write_history_p;
 static int history_size;
 static char *history_filename;
 
+/* This is like readline(), but it has some gdb-specific behavior.
+   gdb can use readline in both the synchronous and async modes during
+   a single gdb invocation.  At the ordinary top-level prompt we might
+   be using the async readline.  That means we can't use
+   rl_pre_input_hook, since it doesn't work properly in async mode.
+   However, for a secondary prompt (" >", such as occurs during a
+   `define'), gdb just calls readline() directly, running it in
+   synchronous mode.  So for operate-and-get-next to work in this
+   situation, we have to switch the hooks around.  That is what
+   gdb_readline_wrapper is for.  */
+char *
+gdb_readline_wrapper (char *prompt)
+{
+  /* Set the hook that works in this case.  */
+  if (event_loop_p && after_char_processing_hook)
+    {
+      rl_pre_input_hook = (Function *) after_char_processing_hook;
+      after_char_processing_hook = NULL;
+    }
+
+  return readline (prompt);
+}
+
 
 #ifdef STOP_SIGNAL
 static void
@@ -1174,7 +1197,7 @@ command_line_input (char *prompt_arg, int repeat, char *annotation_suffix)
 	}
       else if (command_editing_p && instream == stdin && ISATTY (instream))
 	{
-	  rl = readline (local_prompt);
+	  rl = gdb_readline_wrapper (local_prompt);
 	}
       else
 	{
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index 19f290656e2..976f9259cdd 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -854,7 +854,7 @@ read_actions (struct tracepoint *t)
 	line = (*readline_hook) (prompt);
       else if (instream == stdin && ISATTY (instream))
 	{
-	  line = readline (prompt);
+	  line = gdb_readline_wrapper (prompt);
 	  if (line && *line)	/* add it to command history */
 	    add_history (line);
 	}
diff --git a/gdb/utils.c b/gdb/utils.c
index 4baea624264..b2d9ecafdb3 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -1603,7 +1603,7 @@ prompt_for_continue (void)
   /* Call readline, not gdb_readline, because GO32 readline handles control-C
      whereas control-C to gdb_readline will cause the user to get dumped
      out to DOS.  */
-  ignore = readline (cont_prompt);
+  ignore = gdb_readline_wrapper (cont_prompt);
 
   if (annotation_level > 1)
     printf_unfiltered ("\n\032\032post-prompt-for-continue\n");