Daco Harkes
88de61b933
We pass `Zone* zone` usually as first argument to functions. This was not the case in existing FFI code. Addressing: https://dart-review.googlesource.com/c/sdk/+/140290/37/runtime/vm/compiler/ffi/native_type.h#181 Change-Id: I858af575848d94381780800eda7a9c506f67eb3e Cq-Include-Trybots: luci.dart.try:vm-precomp-ffi-qemu-linux-release-arm-try,vm-ffi-android-debug-arm64-try,vm-ffi-android-debug-arm-try,vm-kernel-linux-debug-x64-try,vm-kernel-linux-debug-ia32-try Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170428 Reviewed-by: Martin Kustermann <kustermann@google.com>
61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
// Copyright (c) 2020, 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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#ifndef RUNTIME_VM_COMPILER_FFI_FRAME_REBASE_H_
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#define RUNTIME_VM_COMPILER_FFI_FRAME_REBASE_H_
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#if defined(DART_PRECOMPILED_RUNTIME)
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#error "AOT runtime should not use compiler sources (including header files)"
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#endif // defined(DART_PRECOMPILED_RUNTIME)
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#include "vm/compiler/backend/locations.h"
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#include "vm/compiler/ffi/native_location.h"
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#include "vm/compiler/ffi/native_type.h"
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#include "vm/compiler/runtime_api.h"
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#include "vm/thread.h"
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namespace dart {
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namespace compiler {
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namespace ffi {
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// Describes a change of stack frame where the stack or base register or stack
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// offset may change. This class allows easily rebasing stack locations across
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// frame manipulations.
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//
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// If the stack offset register matches 'old_base', it is changed to 'new_base'
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// and 'stack_delta_in_bytes' (# of bytes) is applied.
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//
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// This class can be used to rebase both Locations and NativeLocations.
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class FrameRebase : public ValueObject {
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public:
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FrameRebase(Zone* zone,
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const Register old_base,
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const Register new_base,
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intptr_t stack_delta_in_bytes)
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: zone_(zone),
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old_base_(old_base),
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new_base_(new_base),
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stack_delta_in_bytes_(stack_delta_in_bytes) {}
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const NativeLocation& Rebase(const NativeLocation& loc) const;
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Location Rebase(const Location loc) const;
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private:
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Zone* zone_;
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const Register old_base_;
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const Register new_base_;
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const intptr_t stack_delta_in_bytes_;
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};
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} // namespace ffi
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} // namespace compiler
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} // namespace dart
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#endif // RUNTIME_VM_COMPILER_FFI_FRAME_REBASE_H_
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