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