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1 // Copyright 2017 the V8 project authors. All rights reserved. | 1 // Copyright 2017 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
| 5 #include <sys/mman.h> |
| 6 |
5 #include "src/base/macros.h" | 7 #include "src/base/macros.h" |
6 #include "src/base/platform/platform-posix.h" | 8 #include "src/base/platform/platform-posix.h" |
7 #include "src/base/platform/platform.h" | 9 #include "src/base/platform/platform.h" |
8 | 10 |
9 namespace v8 { | 11 namespace v8 { |
10 namespace base { | 12 namespace base { |
11 | 13 |
12 TimezoneCache* OS::CreateTimezoneCache() { return new PosixTimezoneCache(); } | 14 TimezoneCache* OS::CreateTimezoneCache() { return new PosixTimezoneCache(); } |
13 | 15 |
| 16 void* OS::Allocate(const size_t requested, size_t* allocated, |
| 17 OS::MemoryPermission access) { |
| 18 const size_t msize = RoundUp(requested, AllocateAlignment()); |
| 19 int prot = GetProtectionFromMemoryPermission(access); |
| 20 void* addr = OS::GetRandomMmapAddr(); |
| 21 void* mbase = mmap(addr, msize, prot, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
| 22 if (mbase == MAP_FAILED) return NULL; |
| 23 *allocated = msize; |
| 24 return mbase; |
| 25 } |
| 26 |
14 std::vector<OS::SharedLibraryAddress> OS::GetSharedLibraryAddresses() { | 27 std::vector<OS::SharedLibraryAddress> OS::GetSharedLibraryAddresses() { |
15 CHECK(false); // TODO(fuchsia): Port, https://crbug.com/731217. | 28 CHECK(false); // TODO(fuchsia): Port, https://crbug.com/731217. |
16 return std::vector<SharedLibraryAddress>(); | 29 return std::vector<SharedLibraryAddress>(); |
17 } | 30 } |
18 | 31 |
19 void OS::SignalCodeMovingGC() { | 32 void OS::SignalCodeMovingGC() { |
20 CHECK(false); // TODO(fuchsia): Port, https://crbug.com/731217. | 33 CHECK(false); // TODO(fuchsia): Port, https://crbug.com/731217. |
21 } | 34 } |
22 | 35 |
23 VirtualMemory::VirtualMemory() : address_(NULL), size_(0) {} | 36 VirtualMemory::VirtualMemory() : address_(NULL), size_(0) {} |
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76 } | 89 } |
77 | 90 |
78 // static | 91 // static |
79 bool VirtualMemory::HasLazyCommits() { | 92 bool VirtualMemory::HasLazyCommits() { |
80 CHECK(false); // TODO(fuchsia): Port, https://crbug.com/731217. | 93 CHECK(false); // TODO(fuchsia): Port, https://crbug.com/731217. |
81 return false; | 94 return false; |
82 } | 95 } |
83 | 96 |
84 } // namespace base | 97 } // namespace base |
85 } // namespace v8 | 98 } // namespace v8 |
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