From a04b0428abc8564638c910f80b68a1cc7f14d3b2 Mon Sep 17 00:00:00 2001
From: Joel Brobecker <brobecker@gnat.com>
Date: Thu, 24 Feb 2011 07:39:48 +0000
Subject: Revert the following change (not approved yet):

	2011-02-21  Hui Zhu  <teawater@gmail.com>
	* Makefile.in (HFILES_NO_SRCDIR): Add printcmd.h.
	* ax-gdb.c (gen_printf_expr_callback): New function.
	* ax-gdb.h (gen_printf_expr_callback): Forward declare.
	* ax-general.c (ax_memcpy): New function.
	(ax_print): Handle "printf".
	(ax_reqs): Ditto.
	* ax.h (ax_memcpy): Forward declare.
	* common/ax.def (invalid2): Removed.
	(printf): New entry.
	* printcmd.c (printcmd.h): New include.
	(string_printf): New function.
	(ui_printf): Removed.
	(printf_command): Remove static.  Call string_printf.
	(eval_command): Call string_printf.
	* printcmd.h: New file.
	* tracepoint.c (validate_actionline,
	encode_actions_1): handle printf_command.
---
 gdb/ax-general.c | 53 +++++++----------------------------------------------
 1 file changed, 7 insertions(+), 46 deletions(-)

(limited to 'gdb/ax-general.c')

diff --git a/gdb/ax-general.c b/gdb/ax-general.c
index 62c382c..889fac9 100644
--- a/gdb/ax-general.c
+++ b/gdb/ax-general.c
@@ -331,14 +331,6 @@ ax_tsv (struct agent_expr *x, enum agent_op op, int num)
   x->buf[x->len + 2] = (num) & 0xff;
   x->len += 3;
 }
-
-void
-ax_memcpy (struct agent_expr *x, const void *src, size_t n)
-{
-  grow_expr (x, n);
-  memcpy (x->buf + x->len, src, n);
-  x->len += n;
-}
 
 
 
@@ -377,7 +369,6 @@ ax_print (struct ui_file *f, struct agent_expr *x)
   for (i = 0; i < x->len;)
     {
       enum agent_op op = x->buf[i];
-      int op_size;
 
       if (op >= (sizeof (aop_map) / sizeof (aop_map[0]))
 	  || !aop_map[op].name)
@@ -386,19 +377,7 @@ ax_print (struct ui_file *f, struct agent_expr *x)
 	  i++;
 	  continue;
 	}
-      if (op == aop_printf)
-        {
-	  if (i + 2 >= x->len)
-	    {
-	      fprintf_filtered (f, _("%3d  <bad opcode %02x>\n"), i, op);
-	      i++;
-	      continue;
-	    }
-	  op_size = 1 + strlen (x->buf + i + 2) + 1;
-	}
-      else
-	op_size = aop_map[op].op_size;
-      if (i + 1 + op_size > x->len)
+      if (i + 1 + aop_map[op].op_size > x->len)
 	{
 	  fprintf_filtered (f, _("%3d  <incomplete opcode %s>\n"),
 			    i, aop_map[op].name);
@@ -406,15 +385,15 @@ ax_print (struct ui_file *f, struct agent_expr *x)
 	}
 
       fprintf_filtered (f, "%3d  %s", i, aop_map[op].name);
-      if (op_size > 0)
+      if (aop_map[op].op_size > 0)
 	{
 	  fputs_filtered (" ", f);
 
 	  print_longest (f, 'd', 0,
-			 read_const (x, i + 1, op_size));
+			 read_const (x, i + 1, aop_map[op].op_size));
 	}
       fprintf_filtered (f, "\n");
-      i += 1 + op_size;
+      i += 1 + aop_map[op].op_size;
 
       is_float = (op == aop_float);
     }
@@ -482,8 +461,6 @@ ax_reqs (struct agent_expr *ax)
   /* Pointer to a description of the present op.  */
   struct aop_map *op;
 
-  int op_size = 0, consumed = 0;
-
   memset (targets, 0, ax->len * sizeof (targets[0]));
   memset (boundary, 0, ax->len * sizeof (boundary[0]));
 
@@ -491,7 +468,7 @@ ax_reqs (struct agent_expr *ax)
   ax->flaw = agent_flaw_none;
   ax->max_data_size = 0;
 
-  for (i = 0; i < ax->len; i += 1 + op_size)
+  for (i = 0; i < ax->len; i += 1 + op->op_size)
     {
       if (ax->buf[i] > (sizeof (aop_map) / sizeof (aop_map[0])))
 	{
@@ -507,23 +484,7 @@ ax_reqs (struct agent_expr *ax)
 	  return;
 	}
 
-      if (ax->buf[i] == aop_printf)
-        {
-	  if (i + 2 >= ax->len)
-	    {
-	      ax->flaw = agent_flaw_incomplete_instruction;
-	      return;
-	    }
-	  consumed = ax->buf[i + 1];
-	  op_size = 1 + strlen (ax->buf + i + 2) + 1;
-	}
-      else
-        {
-	  op_size = op->op_size;
-	  consumed = op->consumed;
-        }
-
-      if (i + 1 + op_size > ax->len)
+      if (i + 1 + op->op_size > ax->len)
 	{
 	  ax->flaw = agent_flaw_incomplete_instruction;
 	  return;
@@ -541,7 +502,7 @@ ax_reqs (struct agent_expr *ax)
       boundary[i] = 1;
       heights[i] = height;
 
-      height -= consumed;
+      height -= op->consumed;
       if (height < ax->min_height)
 	ax->min_height = height;
       height += op->produced;
-- 
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