[PATCH] disassemble support start,+length format

[crquan@gmail.com]

From: CHENG Renquan <rqcheng@smu.edu.sg>

add new support for disassemble by "start,+length" format

 gdb/cli/cli-cmds.c |   16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

--- gdb/cli/cli-cmds.c.orig	2010-01-18 14:25:22.000000000 +0800
+++ gdb/cli/cli-cmds.c	2010-04-08 23:06:25.816107001 +0800
@@ -1045,8 +1045,9 @@ disassemble_current_function (int flags)
        - dump the assembly code for the function of the current pc
      disassemble [/mr] addr
        - dump the assembly code for the function at ADDR
-     disassemble [/mr] low high
-       - dump the assembly code in the range [LOW,HIGH)
+     disassemble [/mr] low,high
+     disassemble [/mr] low,+length
+       - dump the assembly code in the range [LOW,HIGH), or [LOW,LOW+length)
 
    A /m modifier will include source code with the assembly.
    A /r modifier will include raw instructions in hex with the assembly.  */
@@ -1117,8 +1118,16 @@ disassemble_command (char *arg, int from
   else
     {
       /* Two arguments.  */
+      int incl_flag = 0;
+
       low = pc;
+      if (arg[0] == '+') {
+	++arg;
+	incl_flag = 1;
+      }
       high = parse_and_eval_address (arg);
+      if (incl_flag)
+	high += low;
     }
 
   print_disassembly (gdbarch, name, low, high, flags);
@@ -1546,7 +1555,8 @@ Default is the function surrounding the 
 With a /m modifier, source lines are included (if available).\n\
 With a /r modifier, raw instructions in hex are included.\n\
 With a single argument, the function surrounding that address is dumped.\n\
-Two arguments (separated by a comma) are taken as a range of memory to dump."));
+Two arguments (separated by a comma) are taken as a range of memory to dump,\n\
+  in the form of \"start,end\", or \"start,+length\"."));
   set_cmd_completer (c, location_completer);
   if (xdb_commands)
     add_com_alias ("va", "disassemble", class_xdb, 0);

--
git v1.7.0.4, rqcheng at smu edu sg