Alexander Aprelev
164948ab0a
At present calling convention code is guarded by _WIN64 macro, which indicates that compiler is running on Windows, doesn't take into account target os. This causes problems when one attempts to generate aot snapshot for Android os. Fixes https://github.com/flutter/flutter/issues/44425. Change-Id: I8b21d9e9c357071f29632826dd7bbedc19be00a2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149497 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Alexander Aprelev <aam@google.com>
74 lines
2.7 KiB
C++
74 lines
2.7 KiB
C++
// Copyright (c) 2013, 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_STACK_FRAME_X64_H_
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#define RUNTIME_VM_STACK_FRAME_X64_H_
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#if !defined(RUNTIME_VM_STACK_FRAME_H_)
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#error Do not include stack_frame_x64.h directly; use stack_frame.h instead.
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#endif
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#include "vm/constants.h"
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namespace dart {
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/* X64 Dart Frame Layout
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| | <- TOS
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Callee frame | ... |
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| saved PP |
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| code object |
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| saved RBP | (RBP of current frame)
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| saved PC | (PC of current frame)
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+--------------------+
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Current frame | ... T| <- RSP of current frame
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| first local T|
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| caller's PP T|
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| code object T| (current frame's code object)
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| caller's RBP | <- RBP of current frame
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| caller's ret addr | (PC of caller frame)
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+--------------------+
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Caller frame | last parameter | <- RSP of caller frame
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| ... |
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T against a slot indicates it needs to be traversed during GC.
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*/
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static const int kDartFrameFixedSize = 4; // PC marker, RBP, PP, PC.
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static const int kSavedPcSlotFromSp = -1;
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static const int kFirstObjectSlotFromFp = -1; // Used by GC to traverse stack.
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static const int kLastFixedObjectSlotFromFp = -2;
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static const int kFirstLocalSlotFromFp = -3;
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static const int kSavedCallerPpSlotFromFp = -2;
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static const int kPcMarkerSlotFromFp = -1;
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static const int kSavedCallerFpSlotFromFp = 0;
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static const int kSavedCallerPcSlotFromFp = 1;
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static const int kParamEndSlotFromFp = 1; // One slot past last parameter.
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static const int kCallerSpSlotFromFp = 2;
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static const int kLastParamSlotFromEntrySp = 1; // Skip return address.
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// Entry and exit frame layout.
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#if defined(TARGET_OS_WINDOWS)
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static const int kExitLinkSlotFromEntryFp = -32;
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#else
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static const int kExitLinkSlotFromEntryFp = -10;
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#endif // defined(TARGET_OS_WINDOWS)
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// For FFI native -> Dart callbacks, the number of stack slots between arguments
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// passed on stack and arguments saved in callback prologue. 2 = return adddress
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// (1) + saved frame pointer (1). Also add slots for the shadow space, if
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// present.
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//
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// If NativeCallbackTrampolines::Enabled(), then
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// kNativeCallbackTrampolineStackDelta must be added as well.
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constexpr intptr_t kCallbackSlotsBeforeSavedArguments =
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2 + CallingConventions::kShadowSpaceBytes / kWordSize;
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} // namespace dart
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#endif // RUNTIME_VM_STACK_FRAME_X64_H_
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