X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Funit%2Ftest_uatomic.c;h=fe2a6c1b8751794190261539d9cb276958fcee48;hp=5884455904e811ea72b8fab2a39d03ca378320d6;hb=HEAD;hpb=70469b43316ecc8d6053550504858ad8a8ef9b16

diff --git a/tests/unit/test_uatomic.c b/tests/unit/test_uatomic.c
index 5884455..d9c70e0 100644
--- a/tests/unit/test_uatomic.c
+++ b/tests/unit/test_uatomic.c
@@ -1,24 +1,6 @@
-/*
- * test_uatomic.c
- *
- * Userspace RCU library - test atomic operations
- *
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
+// SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <stdio.h>
 #include <urcu/uatomic.h>
@@ -27,14 +9,18 @@
 
 #define NR_TESTS 17
 
+#define BYTE_PER_LONG	(sizeof(unsigned long) / sizeof(unsigned char))
+#define SHORT_PER_LONG	(sizeof(unsigned long) / sizeof(unsigned short))
+#define INT_PER_LONG	(sizeof(unsigned long) / sizeof(unsigned int))
+
 struct testvals {
 #ifdef UATOMIC_HAS_ATOMIC_BYTE
-	unsigned char c;
+	unsigned char c[BYTE_PER_LONG];
 #endif
 #ifdef UATOMIC_HAS_ATOMIC_SHORT
-	unsigned short s;
+	unsigned short s[SHORT_PER_LONG];
 #endif
-	unsigned int i;
+	unsigned int i[INT_PER_LONG];
 	unsigned long l;
 };
 
@@ -93,25 +79,36 @@ do {						\
 
 int main(void)
 {
-	int nr_run = 2;
+	int nr_run = INT_PER_LONG + 1;
+	unsigned long i;
+
 #ifdef UATOMIC_HAS_ATOMIC_BYTE
-	nr_run += 1;
+	nr_run += BYTE_PER_LONG;
 #endif
 #ifdef UATOMIC_HAS_ATOMIC_SHORT
-	nr_run += 1;
+	nr_run += SHORT_PER_LONG;
 #endif
 
 	plan_tests(nr_run * NR_TESTS);
 #ifdef UATOMIC_HAS_ATOMIC_BYTE
-	diag("Test atomic ops on byte");
-	do_test(&vals.c);
+	for (i = 0; i < BYTE_PER_LONG; i++) {
+		diag("Test atomic ops on byte with %lu byte offset from long alignment",
+			i);
+		do_test(&vals.c[i]);
+	}
 #endif
 #ifdef UATOMIC_HAS_ATOMIC_SHORT
-	diag("Test atomic ops on short");
-	do_test(&vals.s);
+	for (i = 0; i < SHORT_PER_LONG; i++) {
+		diag("Test atomic ops on short with %lu byte offset from long alignment",
+			i * sizeof(unsigned short));
+		do_test(&vals.s[i]);
+	}
 #endif
-	diag("Test atomic ops on int");
-	do_test(&vals.i);
+	for (i = 0; i < INT_PER_LONG; i++) {
+		diag("Test atomic ops on int with %lu byte offset from long alignment",
+			i * sizeof(unsigned int));
+		do_test(&vals.i[i]);
+	}
 	diag("Test atomic ops on long");
 	do_test(&vals.l);