[Bug breakpoints/10136] New: rwatch not working when set before run

["niko dot sams at gmail dot com" <sourceware-bugzilla@sourceware.org>]

When setting a read watchpoint for a static variable I get the error "Target 
does not support this type of hardware watchpoint." Same problem with awatch. 
watch works correctly.
$ gdb debugee
GNU gdb (GDB) 6.8.50.20090509-cvs
(gdb) l 25
20      void noop() {}
21      void foo() {
22          static int i=0;
23          ++i;
24          noop();
25          noop();
26      }
27      int main(int argc, char **argv) {
28          std::cout << "Hello, world!" << std::endl;
29          foo();
(gdb) rwatch foo::i
Target does not support this type of hardware watchpoint.

Setting the watchpoint after a breakpoint was it works:
$ gdb debugee
GNU gdb (GDB) 6.8.50.20090509-cvs
Copyright (C) 2009 Free Software Foundation, Inc.
(gdb) break main
Breakpoint 1 at 0x400a70: 
file /home/niko/kdesvn/kde-git/kdevelop/debuggers/gdb/unittests/debugee.cpp, 
line 28.
(gdb) r
Starting 
program: /home/niko/kdesvn/build/kde-git/kdevelop/debuggers/gdb/unittests/debugee

Breakpoint 1, main (argc=1, argv=0x7fffffffdbc8) 
at /home/niko/kdesvn/kde-git/kdevelop/debuggers/gdb/unittests/debugee.cpp:28
28          std::cout << "Hello, world!" << std::endl;
(gdb) rwatch foo::i
Hardware read watchpoint 2: foo::i
(gdb)                                                                                     


Gdb 6.8 works:
$ /usr/bin/gdb debugee
GNU gdb 6.8
(gdb) rwatch foo::i
Hardware read watchpoint 1: foo()::i
(gdb)

-- 
           Summary: rwatch not working when set before run
           Product: gdb
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: breakpoints
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: niko dot sams at gmail dot com
                CC: gdb-prs at sourceware dot org
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://sourceware.org/bugzilla/show_bug.cgi?id=10136

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