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81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
//===---- AccessibleFunction.cpp - Swift protocol conformance checking ----===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Checking and caching of Swift accessible functions.
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//
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//===----------------------------------------------------------------------===//
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#include "ImageInspection.h"
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#include "Private.h"
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#include "swift/Basic/Lazy.h"
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#include "swift/Demangling/Demangler.h"
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#include "swift/Runtime/Concurrent.h"
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#include "swift/Runtime/Metadata.h"
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#include "Private.h"
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#include <cstdint>
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using namespace swift;
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#pragma mark Accessible function cache
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namespace {
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struct AccessibleFunctionsSection {
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const AccessibleFunctionRecord *Begin, *End;
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AccessibleFunctionsSection(const AccessibleFunctionRecord *begin,
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const AccessibleFunctionRecord *end)
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: Begin(begin), End(end) {}
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AccessibleFunctionsSection(const void *ptr, uintptr_t size) {
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auto bytes = reinterpret_cast<const char *>(ptr);
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Begin = reinterpret_cast<const AccessibleFunctionRecord *>(ptr);
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End = reinterpret_cast<const AccessibleFunctionRecord *>(bytes + size);
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}
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const AccessibleFunctionRecord *begin() const { return Begin; }
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const AccessibleFunctionRecord *end() const { return End; }
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};
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struct AccessibleFunctionsState {
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ConcurrentReadableArray<AccessibleFunctionsSection> SectionsToScan;
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AccessibleFunctionsState() {
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initializeAccessibleFunctionsLookup();
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}
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};
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static Lazy<AccessibleFunctionsState> Functions;
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} // end anonymous namespace
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static void _registerAccessibleFunctions(AccessibleFunctionsState &C,
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AccessibleFunctionsSection section) {
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C.SectionsToScan.push_back(section);
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}
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void swift::addImageAccessibleFunctionsBlockCallbackUnsafe(const void *functions,
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uintptr_t size) {
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assert(
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size % sizeof(AccessibleFunctionRecord) == 0 &&
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"accessible function section not a multiple of AccessibleFunctionRecord");
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auto &C = Functions.unsafeGetAlreadyInitialized();
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_registerAccessibleFunctions(C, AccessibleFunctionsSection{functions, size});
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}
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void swift::addImageAccessibleFunctionsBlockCallback(const void *functions,
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uintptr_t size) {
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Functions.get();
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addImageAccessibleFunctionsBlockCallbackUnsafe(functions, size);
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}
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