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Issue 9227007: Version 3.8.6 (Closed) Base URL: http://v8.googlecode.com/svn/trunk/
Patch Set: Created 8 years, 11 months ago
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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. 1 // Copyright (c) 1994-2006 Sun Microsystems Inc.
2 // All Rights Reserved. 2 // All Rights Reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions 5 // modification, are permitted provided that the following conditions
6 // are met: 6 // are met:
7 // 7 //
8 // - Redistributions of source code must retain the above copyright notice, 8 // - Redistributions of source code must retain the above copyright notice,
9 // this list of conditions and the following disclaimer. 9 // this list of conditions and the following disclaimer.
10 // 10 //
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310 own_buffer_ = true; 310 own_buffer_ = true;
311 311
312 } else { 312 } else {
313 // Use externally provided buffer instead. 313 // Use externally provided buffer instead.
314 ASSERT(buffer_size > 0); 314 ASSERT(buffer_size > 0);
315 buffer_ = static_cast<byte*>(buffer); 315 buffer_ = static_cast<byte*>(buffer);
316 buffer_size_ = buffer_size; 316 buffer_size_ = buffer_size;
317 own_buffer_ = false; 317 own_buffer_ = false;
318 } 318 }
319 319
320 // Setup buffer pointers. 320 // Set up buffer pointers.
321 ASSERT(buffer_ != NULL); 321 ASSERT(buffer_ != NULL);
322 pc_ = buffer_; 322 pc_ = buffer_;
323 reloc_info_writer.Reposition(buffer_ + buffer_size, pc_); 323 reloc_info_writer.Reposition(buffer_ + buffer_size, pc_);
324 num_pending_reloc_info_ = 0; 324 num_pending_reloc_info_ = 0;
325 next_buffer_check_ = 0; 325 next_buffer_check_ = 0;
326 const_pool_blocked_nesting_ = 0; 326 const_pool_blocked_nesting_ = 0;
327 no_const_pool_before_ = 0; 327 no_const_pool_before_ = 0;
328 first_const_pool_use_ = -1; 328 first_const_pool_use_ = -1;
329 last_bound_pos_ = 0; 329 last_bound_pos_ = 0;
330 ClearRecordedAstId(); 330 ClearRecordedAstId();
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342 } 342 }
343 } 343 }
344 } 344 }
345 345
346 346
347 void Assembler::GetCode(CodeDesc* desc) { 347 void Assembler::GetCode(CodeDesc* desc) {
348 // Emit constant pool if necessary. 348 // Emit constant pool if necessary.
349 CheckConstPool(true, false); 349 CheckConstPool(true, false);
350 ASSERT(num_pending_reloc_info_ == 0); 350 ASSERT(num_pending_reloc_info_ == 0);
351 351
352 // Setup code descriptor. 352 // Set up code descriptor.
353 desc->buffer = buffer_; 353 desc->buffer = buffer_;
354 desc->buffer_size = buffer_size_; 354 desc->buffer_size = buffer_size_;
355 desc->instr_size = pc_offset(); 355 desc->instr_size = pc_offset();
356 desc->reloc_size = (buffer_ + buffer_size_) - reloc_info_writer.pos(); 356 desc->reloc_size = (buffer_ + buffer_size_) - reloc_info_writer.pos();
357 } 357 }
358 358
359 359
360 void Assembler::Align(int m) { 360 void Assembler::Align(int m) {
361 ASSERT(m >= 4 && IsPowerOf2(m)); 361 ASSERT(m >= 4 && IsPowerOf2(m));
362 while ((pc_offset() & (m - 1)) != 0) { 362 while ((pc_offset() & (m - 1)) != 0) {
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2439 CodeDesc desc; // the new buffer 2439 CodeDesc desc; // the new buffer
2440 if (buffer_size_ < 4*KB) { 2440 if (buffer_size_ < 4*KB) {
2441 desc.buffer_size = 4*KB; 2441 desc.buffer_size = 4*KB;
2442 } else if (buffer_size_ < 1*MB) { 2442 } else if (buffer_size_ < 1*MB) {
2443 desc.buffer_size = 2*buffer_size_; 2443 desc.buffer_size = 2*buffer_size_;
2444 } else { 2444 } else {
2445 desc.buffer_size = buffer_size_ + 1*MB; 2445 desc.buffer_size = buffer_size_ + 1*MB;
2446 } 2446 }
2447 CHECK_GT(desc.buffer_size, 0); // no overflow 2447 CHECK_GT(desc.buffer_size, 0); // no overflow
2448 2448
2449 // Setup new buffer. 2449 // Set up new buffer.
2450 desc.buffer = NewArray<byte>(desc.buffer_size); 2450 desc.buffer = NewArray<byte>(desc.buffer_size);
2451 2451
2452 desc.instr_size = pc_offset(); 2452 desc.instr_size = pc_offset();
2453 desc.reloc_size = (buffer_ + buffer_size_) - reloc_info_writer.pos(); 2453 desc.reloc_size = (buffer_ + buffer_size_) - reloc_info_writer.pos();
2454 2454
2455 // Copy the data. 2455 // Copy the data.
2456 int pc_delta = desc.buffer - buffer_; 2456 int pc_delta = desc.buffer - buffer_;
2457 int rc_delta = (desc.buffer + desc.buffer_size) - (buffer_ + buffer_size_); 2457 int rc_delta = (desc.buffer + desc.buffer_size) - (buffer_ + buffer_size_);
2458 memmove(desc.buffer, buffer_, desc.instr_size); 2458 memmove(desc.buffer, buffer_, desc.instr_size);
2459 memmove(reloc_info_writer.pos() + rc_delta, 2459 memmove(reloc_info_writer.pos() + rc_delta,
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2654 2654
2655 // Since a constant pool was just emitted, move the check offset forward by 2655 // Since a constant pool was just emitted, move the check offset forward by
2656 // the standard interval. 2656 // the standard interval.
2657 next_buffer_check_ = pc_offset() + kCheckPoolInterval; 2657 next_buffer_check_ = pc_offset() + kCheckPoolInterval;
2658 } 2658 }
2659 2659
2660 2660
2661 } } // namespace v8::internal 2661 } } // namespace v8::internal
2662 2662
2663 #endif // V8_TARGET_ARCH_ARM 2663 #endif // V8_TARGET_ARCH_ARM
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