Samir Jindel
663a8630e6
This reverts commit bab592fd28.
Reason for revert: Breaks SIMARM_X64 build and crashes in hot-reload.
Original change's description:
> [vm/ffi] Dispatch native callbacks through trampolines if we can't ensure callbacks will always be executable.
>
> Issue https://github.com/dart-lang/sdk/issues/37629
>
> Change-Id: Ib61c32bde5a8b38d90b4da77e27e3874b8bfb7e2
> Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/111432
> Commit-Queue: Samir Jindel <sjindel@google.com>
> Reviewed-by: Martin Kustermann <kustermann@google.com>
TBR=kustermann@google.com,alexmarkov@google.com,sjindel@google.com
Change-Id: Id7dc3068a97debc7a8f757df31ef33fb68bdcb44
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/113827
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Samir Jindel <sjindel@google.com>
67 lines
2.5 KiB
C++
67 lines
2.5 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_ARM_H_
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#define RUNTIME_VM_STACK_FRAME_ARM_H_
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namespace dart {
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/* ARM Dart Frame Layout
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| | <- TOS
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Callee frame | ... |
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| saved PP | (PP of current frame)
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| code object |
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| saved FP | (FP of current frame)
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| saved LR | (PC of current frame)
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+--------------------+
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Current frame | ... T| <- SP 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 FP | <- FP of current frame
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| caller's LR | (PC of caller frame)
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+--------------------+
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Caller frame | last parameter | <- SP 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; // PP, FP, LR, PC marker.
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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 = 0;
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// Entry and exit frame layout.
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#if defined(TARGET_OS_MACOS) || defined(TARGET_OS_MACOS_IOS)
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static const int kExitLinkSlotFromEntryFp = -26;
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COMPILE_ASSERT(kAbiPreservedCpuRegCount == 6);
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COMPILE_ASSERT(kAbiPreservedFpuRegCount == 4);
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#else
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static const int kExitLinkSlotFromEntryFp = -27;
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COMPILE_ASSERT(kAbiPreservedCpuRegCount == 7);
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COMPILE_ASSERT(kAbiPreservedFpuRegCount == 4);
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#endif
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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.
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//
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// 2 = return adddress (1) + saved frame pointer (1).
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constexpr intptr_t kCallbackSlotsBeforeSavedArguments = 2;
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} // namespace dart
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#endif // RUNTIME_VM_STACK_FRAME_ARM_H_
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