1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <gtest/gtest.h> 18 19 #include <linux/swab.h> 20 21 // This test makes sure that references to all of the kernel swab 22 // macros/inline functions that are exported work properly. 23 // Verifies that any kernel header updates do not break these macros. 24 TEST(linux_swab, smoke) { 25 EXPECT_EQ(0x3412U, __swab16(0x1234)); 26 EXPECT_EQ(0x78563412U, __swab32(0x12345678U)); 27 EXPECT_EQ(0xbaefcdab78563412ULL, __swab64(0x12345678abcdefbaULL)); 28 29 __u16 bval16 = 0x1234; 30 EXPECT_EQ(0x3412U, __swab16p(&bval16)); 31 __u32 bval32 = 0x12345678U; 32 EXPECT_EQ(0x78563412U, __swab32p(&bval32)); 33 __u64 bval64 = 0x12345678abcdefbaULL; 34 EXPECT_EQ(0xbaefcdab78563412ULL, __swab64p(&bval64)); 35 36 __u16 sval16 = 0x1234; 37 __swab16s(&sval16); 38 EXPECT_EQ(0x3412U, sval16); 39 __u32 sval32 = 0x12345678U; 40 __swab32s(&sval32); 41 EXPECT_EQ(0x78563412U, sval32); 42 __u64 sval64 = 0x12345678abcdefbaULL; 43 __swab64s(&sval64); 44 EXPECT_EQ(0xbaefcdab78563412ULL, sval64); 45 46 EXPECT_EQ(0x56781234U, __swahw32(0x12345678U)); 47 EXPECT_EQ(0x34127856U, __swahb32(0x12345678U)); 48 49 __u32 hval32 = 0x12345678U; 50 EXPECT_EQ(0x56781234U, __swahw32p(&hval32)); 51 hval32 = 0x12345678U; 52 EXPECT_EQ(0x34127856U, __swahb32p(&hval32)); 53 54 __u32 hsval32 = 0x12345678U; 55 __swahw32s(&hsval32); 56 EXPECT_EQ(0x56781234U, hsval32); 57 hsval32 = 0x12345678U; 58 __swahb32s(&hsval32); 59 EXPECT_EQ(0x34127856U, hsval32); 60 } 61
