Alexander Markov
9af507e0f5
Previously, compiler::target::Foo::InstanceSize(intptr_t length) definitions were hand-written and compiler::target::Foo::InstanceSize() were often defined using the size of UntaggedFoo for array-like objects. This results in an unnecessary code duplication and discrepancy between Foo::InstanceSize() which returns 0 and compiler::target::Foo::InstanceSize() which returns size of the header. This change adds ARRAY_SIZEOF variant to runtime_offsets_list.h and switches array-like objects to auto-generated InstanceSize methods. Also, this change strengthens assertions around host and target values of InstanceSize() and NextFieldOffset() being the same unless DART_PRECOMPILER is defined (which may do cross-compilation). Stronger assertions flushed out a few discrepancies between runtime_api.h and object.h, which are also fixed in this change. TEST=ci Change-Id: I9f67c6a71b9300af5e656fdc70f6a3e341c1d029 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196345 Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Tess Strickland <sstrickl@google.com>
169 lines
7.4 KiB
C++
169 lines
7.4 KiB
C++
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include <iostream>
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#include "vm/compiler/runtime_api.h"
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#include "vm/compiler/runtime_offsets_list.h"
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#include "vm/dart_api_state.h"
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#include "vm/dart_entry.h"
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#include "vm/longjump.h"
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#include "vm/native_arguments.h"
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#include "vm/native_entry.h"
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#include "vm/object.h"
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#include "vm/object_store.h"
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#include "vm/runtime_entry.h"
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#include "vm/symbols.h"
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#include "vm/timeline.h"
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#if defined(TARGET_ARCH_ARM)
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#define ARCH_DEF_CPU "defined(TARGET_ARCH_ARM)"
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#elif defined(TARGET_ARCH_X64)
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#define ARCH_DEF_CPU "defined(TARGET_ARCH_X64)"
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#elif defined(TARGET_ARCH_IA32)
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#define ARCH_DEF_CPU "defined(TARGET_ARCH_IA32)"
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#elif defined(TARGET_ARCH_ARM64)
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#define ARCH_DEF_CPU "defined(TARGET_ARCH_ARM64)"
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#else
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#error Unknown architecture
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#endif
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#if defined(DART_COMPRESSED_POINTERS)
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#define ARCH_DEF ARCH_DEF_CPU " && defined(DART_COMPRESSED_POINTERS)"
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#else
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#define ARCH_DEF ARCH_DEF_CPU " && !defined(DART_COMPRESSED_POINTERS)"
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#endif
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namespace dart {
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void Assert::Fail(const char* format, ...) {
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abort();
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}
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class OffsetsExtractor : public AllStatic {
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public:
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static void DumpOffsets() {
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// Currently we have two different axes for offset generation:
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//
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// * Target architecture
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// * DART_PRECOMPILED_RUNTIME (i.e, AOT vs. JIT)
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//
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// TODO(dartbug.com/43646): Add DART_PRECOMPILER as another axis.
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// These macros don't use any special constants, just method calls, so no
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// output.
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#define PRINT_ARRAY_SIZEOF(Class, Name, ElementOffset)
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#define PRINT_PAYLOAD_SIZEOF(Class, Name, HeaderSize)
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#if defined(DART_PRECOMPILED_RUNTIME)
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#define PRINT_FIELD_OFFSET(Class, Name) \
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std::cout << "static constexpr dart::compiler::target::word AOT_" #Class \
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"_" #Name " = " \
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<< Class::Name() << ";\n";
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#define PRINT_ARRAY_LAYOUT(Class, Name) \
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std::cout << "static constexpr dart::compiler::target::word AOT_" #Class \
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"_elements_start_offset = " \
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<< Class::ArrayTraits::elements_start_offset() << ";\n"; \
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std::cout << "static constexpr dart::compiler::target::word AOT_" #Class \
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"_element_size = " \
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<< Class::ArrayTraits::kElementSize << ";\n";
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#define PRINT_SIZEOF(Class, Name, What) \
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std::cout << "static constexpr dart::compiler::target::word AOT_" #Class \
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"_" #Name " = " \
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<< sizeof(What) << ";\n";
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#define PRINT_RANGE(Class, Name, Type, First, Last, Filter) \
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{ \
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auto filter = Filter; \
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bool comma = false; \
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std::cout << "static constexpr dart::compiler::target::word AOT_" #Class \
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"_" #Name "[] = {"; \
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for (intptr_t i = static_cast<intptr_t>(First); \
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i <= static_cast<intptr_t>(Last); i++) { \
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auto v = static_cast<Type>(i); \
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std::cout << (comma ? ", " : "") << (filter(v) ? Class::Name(v) : -1); \
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comma = true; \
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} \
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std::cout << "};\n"; \
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}
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#define PRINT_CONSTANT(Class, Name) \
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std::cout << "static constexpr dart::compiler::target::word AOT_" #Class \
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"_" #Name " = " \
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<< Class::Name << ";\n";
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#else // defined(DART_PRECOMPILED_RUNTIME)
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#define PRINT_FIELD_OFFSET(Class, Name) \
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std::cout << "static constexpr dart::compiler::target::word " #Class \
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"_" #Name " = " \
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<< Class::Name() << ";\n";
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#define PRINT_ARRAY_LAYOUT(Class, Name) \
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std::cout << "static constexpr dart::compiler::target::word " #Class \
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"_elements_start_offset = " \
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<< Class::ArrayTraits::elements_start_offset() << ";\n"; \
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std::cout << "static constexpr dart::compiler::target::word " #Class \
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"_element_size = " \
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<< Class::ArrayTraits::kElementSize << ";\n";
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#define PRINT_SIZEOF(Class, Name, What) \
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std::cout << "static constexpr dart::compiler::target::word " #Class \
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"_" #Name " = " \
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<< sizeof(What) << ";\n";
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#define PRINT_RANGE(Class, Name, Type, First, Last, Filter) \
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{ \
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auto filter = Filter; \
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bool comma = false; \
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std::cout << "static constexpr dart::compiler::target::word " #Class \
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"_" #Name "[] = {"; \
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for (intptr_t i = static_cast<intptr_t>(First); \
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i <= static_cast<intptr_t>(Last); i++) { \
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auto v = static_cast<Type>(i); \
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std::cout << (comma ? ", " : "") << (filter(v) ? Class::Name(v) : -1); \
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comma = true; \
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} \
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std::cout << "};\n"; \
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}
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#define PRINT_CONSTANT(Class, Name) \
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std::cout << "static constexpr dart::compiler::target::word " #Class \
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"_" #Name " = " \
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<< Class::Name << ";\n";
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JIT_OFFSETS_LIST(PRINT_FIELD_OFFSET, PRINT_ARRAY_LAYOUT, PRINT_SIZEOF,
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PRINT_ARRAY_SIZEOF, PRINT_PAYLOAD_SIZEOF, PRINT_RANGE,
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PRINT_CONSTANT)
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#endif // defined(DART_PRECOMPILED_RUNTIME)
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COMMON_OFFSETS_LIST(PRINT_FIELD_OFFSET, PRINT_ARRAY_LAYOUT, PRINT_SIZEOF,
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PRINT_ARRAY_SIZEOF, PRINT_PAYLOAD_SIZEOF, PRINT_RANGE,
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PRINT_CONSTANT)
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#undef PRINT_FIELD_OFFSET
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#undef PRINT_ARRAY_LAYOUT
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#undef PRINT_SIZEOF
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#undef PRINT_RANGE
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#undef PRINT_CONSTANT
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#undef PRINT_ARRAY_SIZEOF
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#undef PRINT_PAYLOAD_SIZEOF
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}
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};
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} // namespace dart
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int main(int argc, char* argv[]) {
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std::cout << "#if " << ARCH_DEF << std::endl;
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#if !defined(TARGET_ARCH_IA32) || !defined(DART_PRECOMPILED_RUNTIME)
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dart::OffsetsExtractor::DumpOffsets();
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#endif
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std::cout << "#endif // " << ARCH_DEF << std::endl;
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return 0;
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}
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