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Issue 2481873005: clang-format runtime/vm (Closed)
Patch Set: Merge Created 4 years, 1 month ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #include "vm/globals.h" 5 #include "vm/globals.h"
6 #if defined(TARGET_OS_LINUX) 6 #if defined(TARGET_OS_LINUX)
7 7
8 #include "vm/virtual_memory.h" 8 #include "vm/virtual_memory.h"
9 9
10 #include <sys/mman.h> // NOLINT 10 #include <sys/mman.h> // NOLINT
11 #include <unistd.h> // NOLINT 11 #include <unistd.h> // NOLINT
12 12
13 #include "platform/assert.h" 13 #include "platform/assert.h"
14 #include "platform/utils.h" 14 #include "platform/utils.h"
15 15
16 #include "vm/isolate.h" 16 #include "vm/isolate.h"
17 17
18 namespace dart { 18 namespace dart {
19 19
20 // standard MAP_FAILED causes "error: use of old-style cast" as it 20 // standard MAP_FAILED causes "error: use of old-style cast" as it
21 // defines MAP_FAILED as ((void *) -1) 21 // defines MAP_FAILED as ((void *) -1)
22 #undef MAP_FAILED 22 #undef MAP_FAILED
23 #define MAP_FAILED reinterpret_cast<void*>(-1) 23 #define MAP_FAILED reinterpret_cast<void*>(-1)
24 24
25 uword VirtualMemory::page_size_ = 0; 25 uword VirtualMemory::page_size_ = 0;
26 26
27 27
28 void VirtualMemory::InitOnce() { 28 void VirtualMemory::InitOnce() {
29 page_size_ = getpagesize(); 29 page_size_ = getpagesize();
30 } 30 }
31 31
32 32
33 VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) { 33 VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
34 void* address = mmap(NULL, size, PROT_NONE, 34 void* address = mmap(NULL, size, PROT_NONE,
35 MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, 35 MAP_PRIVATE | MAP_ANON | MAP_NORESERVE, -1, 0);
36 -1, 0);
37 if (address == MAP_FAILED) { 36 if (address == MAP_FAILED) {
38 return NULL; 37 return NULL;
39 } 38 }
40 MemoryRegion region(address, size); 39 MemoryRegion region(address, size);
41 return new VirtualMemory(region); 40 return new VirtualMemory(region);
42 } 41 }
43 42
44 43
45 static void unmap(void* address, intptr_t size) { 44 static void unmap(void* address, intptr_t size) {
46 if (size == 0) { 45 if (size == 0) {
(...skipping 17 matching lines...) Expand all
64 unmap(address, size); 63 unmap(address, size);
65 return true; 64 return true;
66 } 65 }
67 66
68 67
69 bool VirtualMemory::Commit(uword addr, intptr_t size, bool executable) { 68 bool VirtualMemory::Commit(uword addr, intptr_t size, bool executable) {
70 ASSERT(Contains(addr)); 69 ASSERT(Contains(addr));
71 ASSERT(Contains(addr + size) || (addr + size == end())); 70 ASSERT(Contains(addr + size) || (addr + size == end()));
72 int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0); 71 int prot = PROT_READ | PROT_WRITE | (executable ? PROT_EXEC : 0);
73 void* address = mmap(reinterpret_cast<void*>(addr), size, prot, 72 void* address = mmap(reinterpret_cast<void*>(addr), size, prot,
74 MAP_PRIVATE | MAP_ANON | MAP_FIXED, 73 MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
75 -1, 0);
76 if (address == MAP_FAILED) { 74 if (address == MAP_FAILED) {
77 return false; 75 return false;
78 } 76 }
79 return true; 77 return true;
80 } 78 }
81 79
82 80
83 bool VirtualMemory::Protect(void* address, intptr_t size, Protection mode) { 81 bool VirtualMemory::Protect(void* address, intptr_t size, Protection mode) {
84 ASSERT(Thread::Current()->IsMutatorThread() || 82 ASSERT(Thread::Current()->IsMutatorThread() ||
85 Isolate::Current()->mutator_thread()->IsAtSafepoint()); 83 Isolate::Current()->mutator_thread()->IsAtSafepoint());
(...skipping 12 matching lines...) Expand all
98 prot = PROT_READ | PROT_WRITE; 96 prot = PROT_READ | PROT_WRITE;
99 break; 97 break;
100 case kReadExecute: 98 case kReadExecute:
101 prot = PROT_READ | PROT_EXEC; 99 prot = PROT_READ | PROT_EXEC;
102 break; 100 break;
103 case kReadWriteExecute: 101 case kReadWriteExecute:
104 prot = PROT_READ | PROT_WRITE | PROT_EXEC; 102 prot = PROT_READ | PROT_WRITE | PROT_EXEC;
105 break; 103 break;
106 } 104 }
107 return (mprotect(reinterpret_cast<void*>(page_address), 105 return (mprotect(reinterpret_cast<void*>(page_address),
108 end_address - page_address, 106 end_address - page_address, prot) == 0);
109 prot) == 0);
110 } 107 }
111 108
112 109
113 } // namespace dart 110 } // namespace dart
114 111
115 #endif // defined(TARGET_OS_LINUX) 112 #endif // defined(TARGET_OS_LINUX)
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