1 /*
2 * Copyright (C) 2016 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 "berberis/base/mmap.h"
18
19 #include <stdint.h>
20 #include <sys/mman.h>
21
22 #include "berberis/base/checks.h"
23
24 namespace berberis {
25
MmapImpl(MmapImplArgs args)26 void* MmapImpl(MmapImplArgs args) {
27 return mmap(args.addr, args.size, args.prot, args.flags, args.fd, args.offset);
28 }
29
MmapImplOrDie(MmapImplArgs args)30 void* MmapImplOrDie(MmapImplArgs args) {
31 void* ptr = MmapImpl(args);
32 CHECK_NE(ptr, MAP_FAILED);
33 return ptr;
34 }
35
MunmapOrDie(void * ptr,size_t size)36 void MunmapOrDie(void* ptr, size_t size) {
37 int res = munmap(ptr, size);
38 CHECK_EQ(res, 0);
39 }
40
MprotectOrDie(void * ptr,size_t size,int prot)41 void MprotectOrDie(void* ptr, size_t size, int prot) {
42 int res = mprotect(ptr, size, prot);
43 CHECK_EQ(res, 0);
44 }
45
46 } // namespace berberis
47