* mips-tdep.c (heuristic_proc_start): if we walk the pc into the fence

  post without finding the enclosing function, then print a warning.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ea8c8f91c8cdc48d54cccb62c03d2979acf4d7b0..225298ad89df10fa387c96b58cb0725c5d1c9fb7 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+Fri Mar 12 16:23:54 1993  K. Richard Pixley  (rich@cygnus.com)
+
+       * mips-tdep.c (heuristic_proc_start): if we walk the pc into the
+         fence post without finding the enclosing function, then print a
+         warning.
+
 Thu Mar 11 09:33:01 1993  Fred Fish  (fnf@cygnus.com)
 
        * utils.c (fputs_demangled, fprint_symbol):  Remove.

diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 3e6c7a4fc5c40fb97389a0d191aebd6e5519a76a..b21d269b98e119730c19b09f45500ab7e1977da5 100644 (file)
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -123,6 +123,11 @@ mips_frame_saved_pc(frame)
 static struct mips_extra_func_info temp_proc_desc;
 static struct frame_saved_regs temp_saved_regs;
 
+/* This fencepost looks highly suspicious to me.  Removing it also
+   seems suspicious as it could affect remote debugging across serial
+   lines.  At the very least, this needs a warning message.
+   rich@cygnus.com 12mar93. */
+
 static CORE_ADDR
 heuristic_proc_start(pc)
     CORE_ADDR pc;
@@ -135,7 +140,11 @@ heuristic_proc_start(pc)
 
     /* search back for previous return */
     for (start_pc -= 4; ; start_pc -= 4)
-       if (start_pc < fence) return 0; 
+       if (start_pc < fence)
+         {
+           warning("Cannot find enclosing function for pc 0x%x", pc);
+           return 0; 
+         }
        else if (ABOUT_TO_RETURN(start_pc))
            break;
 
@@ -757,7 +766,7 @@ void
 _initialize_mips_tdep ()
 {
   add_show_from_set
-    (add_set_cmd ("mips_fpu", class_support, var_boolean,
+    (add_set_cmd ("mipsfpu", class_support, var_boolean,
                  (char *) &mips_fpu,
                  "Set use of floating point coprocessor.\n\
 Turn off to avoid using floating point instructions when calling functions\n\