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