Re: [PATCH][testsuite] Match symbol on address 0x0

[Yao Qi <yao at codesourcery dot com>]

On 07/11/2014 05:28 PM, Pedro Alves wrote:
> Indeed that seems like an irrelevant detail for the purpose of
> the test.  Wouldn't just doing "set print symbol off" work?

Oh, it works indeed!  How about this?

-- 
Yao (éå)

We see the following fails on arm-none-eabi target,

print (void*)v_signed_char^M
$190 = (void *) 0x0 <_ftext>^M
(gdb) FAIL: gdb.base/exprs.exp: print (void*)v_signed_char (print
(void*)v_signed_char)

GDB behaves correctly but the test assumes there is no symbol on
address 0x0.  This patch is set print symbol off, so that tests below
can match the address only.

gdb/testsuite:

2014-07-11  Yao Qi  <yao@codesourcery.com>

	* gdb.base/exprs.exp: "set print symbol off".
---
 gdb/testsuite/gdb.base/exprs.exp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.base/exprs.exp b/gdb/testsuite/gdb.base/exprs.exp
index ebce24f..4647d72 100644
--- a/gdb/testsuite/gdb.base/exprs.exp
+++ b/gdb/testsuite/gdb.base/exprs.exp
@@ -200,7 +200,9 @@ test_expr "set variable v_unsigned_long=~0" "print v_unsigned_long > 0" "\\$\[0-
 # Test expressions with casts to a pointer.
 # NB: Some architectures convert a ``NULL'' pointer into
 #     something else. Don't simply test for 0.
-#
+# Prevent symbol on address 0x0 being printed.
+gdb_test_no_output "set print symbol off"
+
 test_expr "set variable v_signed_char = 0" "print (void*)v_signed_char" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_signed_char"
 test_expr "set variable v_signed_short = 0" "print (void*)v_signed_short" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_signed_short"
 test_expr "set variable v_signed_int = 0" "print (void*)v_signed_int" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_signed_int"
-- 
1.9.0