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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 "platform/globals.h" | 5 #include "platform/globals.h" |
6 #if defined(TARGET_OS_LINUX) | 6 #if defined(TARGET_OS_LINUX) |
7 | 7 |
8 #include "bin/file.h" | 8 #include "bin/file.h" |
9 | 9 |
10 #include <errno.h> // NOLINT | 10 #include <errno.h> // NOLINT |
11 #include <fcntl.h> // NOLINT | 11 #include <fcntl.h> // NOLINT |
12 #include <libgen.h> // NOLINT | 12 #include <libgen.h> // NOLINT |
| 13 #include <sys/mman.h> // NOLINT |
13 #include <sys/sendfile.h> // NOLINT | 14 #include <sys/sendfile.h> // NOLINT |
14 #include <sys/stat.h> // NOLINT | 15 #include <sys/stat.h> // NOLINT |
15 #include <sys/types.h> // NOLINT | 16 #include <sys/types.h> // NOLINT |
16 #include <unistd.h> // NOLINT | 17 #include <unistd.h> // NOLINT |
17 | 18 |
18 #include "bin/builtin.h" | 19 #include "bin/builtin.h" |
19 #include "bin/log.h" | 20 #include "bin/log.h" |
20 #include "platform/signal_blocker.h" | 21 #include "platform/signal_blocker.h" |
21 #include "platform/utils.h" | 22 #include "platform/utils.h" |
22 | 23 |
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68 intptr_t File::GetFD() { | 69 intptr_t File::GetFD() { |
69 return handle_->fd(); | 70 return handle_->fd(); |
70 } | 71 } |
71 | 72 |
72 | 73 |
73 bool File::IsClosed() { | 74 bool File::IsClosed() { |
74 return handle_->fd() == kClosedFd; | 75 return handle_->fd() == kClosedFd; |
75 } | 76 } |
76 | 77 |
77 | 78 |
| 79 void* File::MapExecutable(intptr_t* len) { |
| 80 ASSERT(handle_->fd() >= 0); |
| 81 intptr_t length = Length(); |
| 82 void* addr = mmap(0, length, |
| 83 PROT_READ | PROT_EXEC, MAP_PRIVATE, |
| 84 handle_->fd(), 0); |
| 85 if (addr == MAP_FAILED) { |
| 86 *len = -1; |
| 87 } else { |
| 88 *len = length; |
| 89 } |
| 90 return addr; |
| 91 } |
| 92 |
| 93 |
78 int64_t File::Read(void* buffer, int64_t num_bytes) { | 94 int64_t File::Read(void* buffer, int64_t num_bytes) { |
79 ASSERT(handle_->fd() >= 0); | 95 ASSERT(handle_->fd() >= 0); |
80 return TEMP_FAILURE_RETRY(read(handle_->fd(), buffer, num_bytes)); | 96 return TEMP_FAILURE_RETRY(read(handle_->fd(), buffer, num_bytes)); |
81 } | 97 } |
82 | 98 |
83 | 99 |
84 int64_t File::Write(const void* buffer, int64_t num_bytes) { | 100 int64_t File::Write(const void* buffer, int64_t num_bytes) { |
85 ASSERT(handle_->fd() >= 0); | 101 ASSERT(handle_->fd() >= 0); |
86 return TEMP_FAILURE_RETRY(write(handle_->fd(), buffer, num_bytes)); | 102 return TEMP_FAILURE_RETRY(write(handle_->fd(), buffer, num_bytes)); |
87 } | 103 } |
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497 return ((file_1_info.st_ino == file_2_info.st_ino) && | 513 return ((file_1_info.st_ino == file_2_info.st_ino) && |
498 (file_1_info.st_dev == file_2_info.st_dev)) ? | 514 (file_1_info.st_dev == file_2_info.st_dev)) ? |
499 File::kIdentical : | 515 File::kIdentical : |
500 File::kDifferent; | 516 File::kDifferent; |
501 } | 517 } |
502 | 518 |
503 } // namespace bin | 519 } // namespace bin |
504 } // namespace dart | 520 } // namespace dart |
505 | 521 |
506 #endif // defined(TARGET_OS_LINUX) | 522 #endif // defined(TARGET_OS_LINUX) |
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