[binutils-gdb] Clear variable "coredump_var_addr" before using it on gdb.base/coredump-filter.exp

[Sergio Durigan Junior <sergiodj at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=2d369d8e973f1507689a7f200c16e154ec5d6c79

commit 2d369d8e973f1507689a7f200c16e154ec5d6c79
Author: Sergio Durigan Junior <sergiodj@redhat.com>
Date:   Sun Apr 26 15:34:29 2015 -0400

    Clear variable "coredump_var_addr" before using it on gdb.base/coredump-filter.exp
    
    This commit is a continuation of the fix committed on:
    
      commit 8cd8f2f8ac49276437b7da37f275706ea1c1c925
      Author: Sergio Durigan Junior <sergiodj@redhat.com>
      Date:   Mon Apr 13 02:40:08 2015 -0400
    
          Rename variable "addr" to "coredump_var_addr" in gdb.base/coredump-filter.exp
    
    Pedro pointed out that this fix was not complete, because the
    testsuite could be run several times in a row (for example), which
    means that it is not enough to just make the variable name unique: it
    also needs to be cleared out if it is global.
    
    This commit does that.  It is actually just a commit made to make
    things totally correct; this specific test does not fail if you run it
    several times in a row.
    
    gdb/testsuite/ChangeLog:
    2015-04-26  Sergio Durigan Junior  <sergiodj@redhat.com>
    
    	* gdb.base/coredump-filter.exp: Clear variable "coredump_var_addr"
    	before using it.

Diff:
---
 gdb/testsuite/ChangeLog                    | 5 +++++
 gdb/testsuite/gdb.base/coredump-filter.exp | 1 +
 2 files changed, 6 insertions(+)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index c37d84a..c620043 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-04-26  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	* gdb.base/coredump-filter.exp: Clear variable "coredump_var_addr"
+	before using it.
+
 2015-04-24  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* gdb.base/dump.exp: Add *.verilog files to all_files list.  Add
diff --git a/gdb/testsuite/gdb.base/coredump-filter.exp b/gdb/testsuite/gdb.base/coredump-filter.exp
index f872de0..72f756a 100644
--- a/gdb/testsuite/gdb.base/coredump-filter.exp
+++ b/gdb/testsuite/gdb.base/coredump-filter.exp
@@ -170,6 +170,7 @@ gdb_test_multiple "print/x &main" "getting main's address" {
 
 # Obtain the address of each variable that will be checked on each
 # case.
+set coredump_var_addr ""
 foreach item $all_anon_corefiles {
     foreach name [list [lindex $item 3] [lindex $item 4]] {
 	set test "print/x $name"