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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/assembler.h" | 5 #include "vm/assembler.h" |
6 | 6 |
7 #include "platform/utils.h" | 7 #include "platform/utils.h" |
8 #include "vm/cpu.h" | 8 #include "vm/cpu.h" |
9 #include "vm/heap.h" | 9 #include "vm/heap.h" |
10 #include "vm/memory_region.h" | 10 #include "vm/memory_region.h" |
11 #include "vm/os.h" | 11 #include "vm/os.h" |
12 #include "vm/zone.h" | 12 #include "vm/zone.h" |
13 | 13 |
14 namespace dart { | 14 namespace dart { |
15 | 15 |
16 DEFINE_FLAG(bool, code_comments, false, | 16 DEFINE_FLAG(bool, code_comments, false, |
17 "Include comments into code and disassembly"); | 17 "Include comments into code and disassembly"); |
18 // TODO(zra): Remove once far branches are enabled automatically on a | |
19 // per-function basis. | |
20 #if defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS) | 18 #if defined(TARGET_ARCH_ARM) || defined(TARGET_ARCH_MIPS) |
21 DEFINE_FLAG(bool, use_far_branches, false, "Enable far branches"); | 19 DEFINE_FLAG(bool, use_far_branches, false, |
| 20 "Enable far branches for ARM and MIPS"); |
22 #endif | 21 #endif |
23 | 22 |
24 | |
25 static uword NewContents(intptr_t capacity) { | 23 static uword NewContents(intptr_t capacity) { |
26 Zone* zone = Isolate::Current()->current_zone(); | 24 Zone* zone = Isolate::Current()->current_zone(); |
27 uword result = zone->AllocUnsafe(capacity); | 25 uword result = zone->AllocUnsafe(capacity); |
28 #if defined(DEBUG) | 26 #if defined(DEBUG) |
29 // Initialize the buffer with kBreakPointInstruction to force a break | 27 // Initialize the buffer with kBreakPointInstruction to force a break |
30 // point if we ever execute an uninitialized part of the code buffer. | 28 // point if we ever execute an uninitialized part of the code buffer. |
31 Assembler::InitializeMemoryWithBreakpoints(result, capacity); | 29 Assembler::InitializeMemoryWithBreakpoints(result, capacity); |
32 #endif | 30 #endif |
33 return result; | 31 return result; |
34 } | 32 } |
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215 | 213 |
216 for (intptr_t i = 0; i < comments_.length(); i++) { | 214 for (intptr_t i = 0; i < comments_.length(); i++) { |
217 comments.SetPCOffsetAt(i, comments_[i]->pc_offset()); | 215 comments.SetPCOffsetAt(i, comments_[i]->pc_offset()); |
218 comments.SetCommentAt(i, comments_[i]->comment()); | 216 comments.SetCommentAt(i, comments_[i]->comment()); |
219 } | 217 } |
220 | 218 |
221 return comments; | 219 return comments; |
222 } | 220 } |
223 | 221 |
224 } // namespace dart | 222 } // namespace dart |
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