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https://github.com/golang/go
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33 lines
647 B
C
33 lines
647 B
C
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#include "../../../src/runtime/runtime.h"
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typedef struct PageMap PageMap;
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enum
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{
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PageShift = 12,
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PageMask = (1<<PageShift) - 1,
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};
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enum {
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PMBits = 64 - PageShift,
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PMLevels = 4,
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PMLevelBits = 13,
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PMLevelSize = 1<<PMLevelBits,
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PMLevelMask = PMLevelSize - 1,
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};
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struct PageMap
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{
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void *level0[PMLevelSize];
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};
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extern int64 allocator·footprint;
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extern bool allocator·frozen;
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void* trivalloc(int32);
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void* pmlookup(PageMap*, uintptr);
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void* pminsert(PageMap*, uintptr, void*);
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