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Diffstat (limited to 'deps/v8/src/code-desc.h')
-rw-r--r-- | deps/v8/src/code-desc.h | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/deps/v8/src/code-desc.h b/deps/v8/src/code-desc.h deleted file mode 100644 index 4da4ee395c..0000000000 --- a/deps/v8/src/code-desc.h +++ /dev/null @@ -1,83 +0,0 @@ -// Copyright 2019 the V8 project authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef V8_CODE_DESC_H_ -#define V8_CODE_DESC_H_ - -#include "src/globals.h" - -namespace v8 { -namespace internal { - -// A CodeDesc describes a buffer holding instructions and relocation -// information. The instructions start at the beginning of the buffer -// and grow forward, the relocation information starts at the end of -// the buffer and grows backward. Inlined metadata sections may exist -// at the end of the instructions. -// -// │<--------------- buffer_size ----------------------------------->│ -// │<---------------- instr_size ------------->│ │<-reloc_size->│ -// ├───────────────────────────────────────────┼──────┼──────────────┤ -// │ instructions │ data │ free │ reloc info │ -// ├───────────────────────────────────────────┴──────┴──────────────┘ - -// TODO(jgruber): Add a single chokepoint for specifying the instruction area -// layout (i.e. the order of inlined metadata fields). -// TODO(jgruber): Systematically maintain inlined metadata offsets and sizes -// to simplify CodeDesc initialization. - -class CodeDesc { - public: - static void Initialize(CodeDesc* desc, Assembler* assembler, - int safepoint_table_offset, int handler_table_offset, - int constant_pool_offset, int code_comments_offset, - int reloc_info_offset); - -#ifdef DEBUG - static void Verify(const CodeDesc* desc); -#else - inline static void Verify(const CodeDesc* desc) {} -#endif - - public: - byte* buffer = nullptr; - int buffer_size = 0; - - // The instruction area contains executable code plus inlined metadata. - - int instr_size = 0; - - // Metadata packed into the instructions area. - - int safepoint_table_offset = 0; - int safepoint_table_size = 0; - - int handler_table_offset = 0; - int handler_table_size = 0; - - int constant_pool_offset = 0; - int constant_pool_size = 0; - - int code_comments_offset = 0; - int code_comments_size = 0; - - // Relocation info is located at the end of the buffer and not part of the - // instructions area. - - int reloc_offset = 0; - int reloc_size = 0; - - // Unwinding information. - // TODO(jgruber,mstarzinger): Pack this into the inlined metadata section. - - byte* unwinding_info = nullptr; - int unwinding_info_size = 0; - - Assembler* origin = nullptr; -}; - -} // namespace internal -} // namespace v8 - -#endif // V8_CODE_DESC_H_ |