From 2403f49b376fd88066b676e92c95ca6f012f0e61 Mon Sep 17 00:00:00 2001
From: Jim Kingdon <jkingdon@engr.sgi.com>
Date: Wed, 24 Apr 1991 16:56:40 +0000
Subject: [PATCH] 	* blockframe.c, frame.h (reinit_frame_cache): New
 function. 	solib.c (solib_add), symfile.c ({,add_}symbol_file_command): 
 Use it.

---
 gdb/ChangeLog    |  6 ++++++
 gdb/blockframe.c | 11 +++++++++++
 gdb/solib.c      |  5 +++++
 gdb/symfile.c    |  8 ++++++++
 4 files changed, 30 insertions(+)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d758c6ed3b0..9dbf8e48d80 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+Wed Apr 24 09:45:17 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)
+
+	* blockframe.c, frame.h (reinit_frame_cache): New function.
+	solib.c (solib_add), symfile.c ({,add_}symbol_file_command):
+	Use it.
+
 Tue Apr 23 10:38:41 1991  Jim Kingdon  (kingdon at cygint.cygnus.com)
 
 	* symtab.c (lookup_symbol): Add 3 more of those loops through
diff --git a/gdb/blockframe.c b/gdb/blockframe.c
index 7971166a3c0..93d26cd3208 100644
--- a/gdb/blockframe.c
+++ b/gdb/blockframe.c
@@ -146,6 +146,17 @@ flush_cached_frames ()
   current_frame = (struct frame_info *) 0; /* Invalidate cache */
 }
 
+/* Flush the frame cache, and start a new one if necessary.  */
+void
+reinit_frame_cache ()
+{
+  FRAME fr = current_frame;
+  flush_cached_frames ();
+  if (fr)
+    set_current_frame ( create_new_frame (read_register (FP_REGNUM),
+					  read_pc ()));
+}
+
 /* Return a structure containing various interesting information
    about a specified stack frame.  */
 /* How do I justify including this function?  Well, the FRAME
diff --git a/gdb/solib.c b/gdb/solib.c
index def9fd6757e..0faf2603664 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -31,6 +31,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #include "gdbcore.h"
 #include "command.h"
 #include "target.h"
+#include "frame.h"
 
 /*
 **	local data declarations
@@ -249,6 +250,10 @@ int from_tty;
     else if (val = (char *) re_comp (arg_string)) {
 	error ("Invalid regexp: %s", val);
     }
+
+    /* Getting new symbols may change our opinion about what is
+       frameless.  */
+    reinit_frame_cache ();
  
     printf_filtered ("All shared libraries");
     if (arg_string)
diff --git a/gdb/symfile.c b/gdb/symfile.c
index 395d7306ddf..5241959dc0c 100644
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -511,6 +511,10 @@ symbol_file_command (name, from_tty)
       return;
     }
 
+  /* Getting new symbols may change our opinion about what is
+     frameless.  */
+  reinit_frame_cache ();
+
   symbol_file_add (name, from_tty, (CORE_ADDR)0, 1);
 }
 
@@ -610,6 +614,10 @@ add_symbol_file_command (args, from_tty)
      char *args;
      int from_tty;
 {
+  /* Getting new symbols may change our opinion about what is
+     frameless.  */
+  reinit_frame_cache ();
+
   target_add_syms (args, from_tty);
 }
 
-- 
2.30.2