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283ef8e455
This should be enough to allow statically compiling swift applications. As followups, I'm going to additionally start installing swift.swift to a common location, and start making REPL/script mode aware that these functions are available, so they don't bother to IRGen them. I'm leaving around some files in runtime/ which aren't necessary with this commit; I'll delete them in a separate commit. Swift SVN r1725
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
//===--- Alloc.cpp - Swift Language ABI Allocation Support ----------------===//
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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 - 2015 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 http://swift.org/LICENSE.txt for license information
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// See http://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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// Allocation ABI Shims While the Language is Bootstrapped
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//
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//===----------------------------------------------------------------------===//
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#include "Alloc.h"
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#include <llvm/Support/MathExtras.h>
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#include <cstdlib>
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#include <unistd.h>
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struct SwiftHeapObject *
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swift_alloc(struct SwiftHeapMetadata *metadata,
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size_t requiredSize,
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size_t requiredAlignment)
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{
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struct SwiftHeapObject *object;
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for (;;) {
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object = reinterpret_cast<struct SwiftHeapObject *>(
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calloc(1, llvm::RoundUpToAlignment(requiredSize, requiredAlignment)));
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if (object) {
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break;
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}
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sleep(1); // XXX FIXME -- Enqueue this thread and resume after free()
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}
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object->metadata = metadata;
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object->runtimePrivateData = 1;
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return reinterpret_cast<struct SwiftHeapObject *>(object);
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}
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struct SwiftHeapObject *
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swift_retain(struct SwiftHeapObject *object)
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{
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if (!object) {
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return NULL;
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}
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++object->runtimePrivateData;
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return object;
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}
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void
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swift_release(struct SwiftHeapObject *object)
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{
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if (!object) {
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return;
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}
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if (--object->runtimePrivateData > 0) {
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return;
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}
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size_t allocSize = object->metadata->destroy(object);
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if (allocSize) {
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swift_dealloc(object, allocSize);
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}
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}
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void
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swift_dealloc(struct SwiftHeapObject *object, size_t allocatedSize)
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{
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free(object);
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}
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