1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "ecmascript/platform/os.h"
17
18#include <ctime>
19#include <malloc/malloc.h>
20#include <sys/sysctl.h>
21#include <sys/types.h>
22#include <sys/xattr.h>
23#include <unistd.h>
24
25#include "ecmascript/log_wrapper.h"
26
27namespace panda::ecmascript {
28size_t MallocUsableSize(void *p)
29{
30    return malloc_size(p);
31}
32
33uint32_t NumberOfCpuCore()
34{
35    return static_cast<uint32_t>(sysconf(_SC_NPROCESSORS_ONLN));
36}
37
38size_t PhysicalSize()
39{
40    static constexpr int MIB_LENGTH = 2;
41    int mib[2];
42    mib[0] = CTL_HW;
43    mib[1] = HW_MEMSIZE;
44    int64_t size = 0;
45    size_t bufferLength = sizeof(size);
46    if (sysctl(mib, MIB_LENGTH, &size, &bufferLength, nullptr, 0) != 0) {
47        LOG_ECMA(FATAL) << "sysctl error";
48    }
49    return static_cast<size_t>(size);
50}
51
52int PrctlSetVMA([[maybe_unused]] const void *p, [[maybe_unused]] const size_t size, [[maybe_unused]] const char *tag)
53{
54    return -1;
55}
56
57long PtracePeektext([[maybe_unused]] int pid, [[maybe_unused]] uintptr_t addr)
58{
59    return static_cast<long>(-1);
60}
61
62void BindSmallCpuCore()
63{
64    LOG_ECMA(INFO) << "Bind Small Core in macos not support";
65}
66
67void BindMidCpuCore()
68{
69    LOG_ECMA(INFO) << "Bind Mid Core in macos not support";
70}
71
72void *PageMapExecFortSpace(void *addr, [[maybe_unused]] size_t size, [[maybe_unused]] int prot)
73{
74    // basically no op
75    return addr;
76}
77
78void SetSecurityLabel(const std::string& path)
79{
80    auto xattrValueSize = getxattr(path.c_str(), XATTR_KEY, nullptr, 0, 0, 0);
81    if (xattrValueSize == static_cast<ssize_t>(DEFAULT_DATA_LENGTH)) {
82        char xattrValue[DEFAULT_DATA_LENGTH + 1];
83        xattrValueSize = getxattr(path.c_str(), XATTR_KEY, xattrValue, xattrValueSize, 0, 0);
84        xattrValue[DEFAULT_DATA_LENGTH] = '\0';
85    }
86
87    if (setxattr(path.c_str(), XATTR_KEY, DEFAULT_DATA_LEVEL.data(), DEFAULT_DATA_LEVEL.size(), 0, 0) < 0) {
88        LOG_ECMA(WARN) << "set label failed! level: " << DEFAULT_DATA_LEVEL << ", file: " << path;
89    }
90}
91}  // namespace panda::ecmascript
92