Alexander Aprelev
50e0e0d99d
This method allows for synchronous execution of dart callbacks from native code. The execution happens on dart mutator thread, from which dart code can only access isolate-group variables - those which are tagged with . Bug: https://github.com/dart-lang/sdk/issues/54530 Bug: https://github.com/dart-lang/sdk/issues/56841 Change-Id: Ia1a6b01327be493f003f1eea82e558bb6b147dd3 CoreLibraryReviewExempt: only internal library change TEST=isolate_group_shared_callback_test Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/422920 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Alexander Aprelev <aam@google.com>
50 lines
1.7 KiB
C++
50 lines
1.7 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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#ifndef RUNTIME_VM_BSS_RELOCS_H_
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#define RUNTIME_VM_BSS_RELOCS_H_
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#include "platform/allocation.h"
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namespace dart {
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class Thread;
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class BSS : public AllStatic {
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public:
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// Entries found in both the VM and isolate BSS come first. Each has its own
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// portion of the BSS segment, so just the indices are shared, not the values
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// stored at the index.
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enum class Relocation : intptr_t {
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DLRT_GetFfiCallbackMetadata, // TODO(https://dartbug.com/52579): Remove.
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DLRT_ExitTemporaryIsolate, // TODO(https://dartbug.com/52579): Remove.
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DLRT_ExitIsolateGroupSharedIsolate, // TODO(https://dartbug.com/52579)
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EndOfVmEntries,
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// We don't have any isolate group specific entries at the moment.
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EndOfIsolateGroupEntries = EndOfVmEntries,
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};
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static constexpr intptr_t kVmEntryCount =
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static_cast<intptr_t>(Relocation::EndOfVmEntries);
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static constexpr intptr_t kIsolateGroupEntryCount =
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static_cast<intptr_t>(Relocation::EndOfIsolateGroupEntries);
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static constexpr intptr_t RelocationIndex(Relocation reloc) {
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return static_cast<intptr_t>(reloc);
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}
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static void Initialize(Thread* current, uword* bss, bool vm);
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// Currently only used externally by LoadedElf::ResolveSymbols() to set the
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// relocated address without changing the embedder interface.
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static void InitializeBSSEntry(BSS::Relocation relocation,
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uword new_value,
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uword* bss_start);
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};
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} // namespace dart
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#endif // RUNTIME_VM_BSS_RELOCS_H_
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