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authorAndrew Cagney <cagney@redhat.com>2000-07-17 02:56:12 +0000
committerAndrew Cagney <cagney@redhat.com>2000-07-17 02:56:12 +0000
commit4f823a66fa0c764d76967a10c222804cb97f29c5 (patch)
treeb8d53657d46789782ef885b7e7d0292cb4a013b4 /gdb
parent08c44e659e4277eedba21b963a6848ef4ae3948f (diff)
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* gdb.base/exprs.exp: Test casts to a pointer including over and
underflow.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/testsuite/ChangeLog5
-rw-r--r--gdb/testsuite/gdb.base/exprs.exp44
2 files changed, 48 insertions, 1 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 585da04..5179eaa 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+Wed Jul 12 18:14:29 2000 Andrew Cagney <cagney@b1.cygnus.com>
+
+ * gdb.base/exprs.exp: Test casts to a pointer including over and
+ underflow.
+
Thu Jul 13 11:52:53 2000 Andrew Cagney <cagney@b1.cygnus.com>
* gdb.base/sizeof.exp, gdb.base/sizeof.c: New files. Compare GDB
diff --git a/gdb/testsuite/gdb.base/exprs.exp b/gdb/testsuite/gdb.base/exprs.exp
index f31407c..925a902 100644
--- a/gdb/testsuite/gdb.base/exprs.exp
+++ b/gdb/testsuite/gdb.base/exprs.exp
@@ -1,4 +1,5 @@
-# Copyright (C) 1988, 1990, 1991, 1992, 1994, 1997 Free Software Foundation, Inc.
+# Copyright (C) 1988, 1990, 1991, 1992, 1994, 1997, 2000 Free
+# Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -215,3 +216,44 @@ test_expr "set variable v_unsigned_long=~0" "print v_unsigned_long == 0" "\\$\[0
test_expr "set variable v_unsigned_long=~0" "print v_unsigned_long != 0" "\\$\[0-9\]* = $true" "print v_unsigned_long != (unsigned long)~0" "\\$\[0-9\]* = $false" "print unsigned long != (~0)"
test_expr "set variable v_unsigned_long=~0" "print v_unsigned_long < 0" "\\$\[0-9\]* = $false" "print v_unsigned_long < 0x7FFF" "\\$\[0-9\]* = $false" "print unsigned long < (~0)"
test_expr "set variable v_unsigned_long=~0" "print v_unsigned_long > 0" "\\$\[0-9\]* = $true" "print v_unsigned_long > 0x7FFF" "\\$\[0-9\]* = $true" "print unsigned long > (~0)"
+#
+# Test expressions with casts to a pointer.
+# NB: Some architectures convert a ``NULL'' pointer into
+# something else. Don't simply test for 0.
+#
+test_expr "set variable v_signed_char = 0" "print (void*)v_signed_char" "\\$\[0-9\]* = .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 \\*. $hex" "print (void*)v_signed_int"
+test_expr "set variable v_signed_long = 0" "print (void*)v_signed_long" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_signed_long"
+test_expr "set variable v_unsigned_char = 0" "print (void*)v_unsigned_char" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_unsigned_char"
+test_expr "set variable v_unsigned_short = 0" "print (void*)v_unsigned_short" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_unsigned_short"
+test_expr "set variable v_unsigned_int = 0" "print (void*)v_unsigned_int" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_unsigned_int"
+test_expr "set variable v_unsigned_long = 0" "print (void*)v_unsigned_long" "\\$\[0-9\]* = .void \\*. $hex" "print (void*)v_unsigned_long"
+#
+# Test expressions with pointers out of range
+#
+# NB: For some architectures, all of sizeof(long),
+# sizeof(long long) and sizeof(void*) are
+# the same size so this test can not work.
+#
+send_gdb "print sizeof (long long) > sizeof (long)\n"
+gdb_expect {
+ -re "\\$\[0-9\]* = $true" {
+ set ok 1
+ pass "sizeof (long long) > sizeof (long) (true)"
+ }
+ -re "\\$\[0-9\]* = $false" {
+ set ok 0
+ pass "sizeof (long long) > sizeof (long) (false)"
+ }
+ timeout {
+ set ok 0
+ fail "sizeof (long long) > sizeof (long) (timeout)"
+ }
+}
+if [expr ! $ok] { setup_xfail "*-*-*" }
+gdb_test "print (void*) ((long long) (unsigned long) -1 + 1)" \
+ "warning: value truncated.*" "truncate (void*) 0x00000000ffffffff + 1"
+if [expr ! $ok] { setup_xfail "*-*-*" }
+gdb_test "print (void*) (~((long long)(unsigned long) -1) - 1)" \
+ "warning: value truncated.*" "truncate (void*) 0xffffffff00000000 - 1"