14e2277962
while others dislike them being extra commits, let's clean them up once and for all for the existing code. If it's ugly, let it only be ugly once :-) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
119 lines
2.4 KiB
C++
119 lines
2.4 KiB
C++
// Common/Alloc.cpp
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#include "StdAfx.h"
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#ifdef _WIN32
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#include "MyWindows.h"
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#else
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#include <stdlib.h>
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#endif
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#include "Alloc.h"
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/* #define _SZ_ALLOC_DEBUG */
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/* use _SZ_ALLOC_DEBUG to debug alloc/free operations */
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#ifdef _SZ_ALLOC_DEBUG
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#include <stdio.h>
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int g_allocCount = 0;
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int g_allocCountMid = 0;
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int g_allocCountBig = 0;
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#endif
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void *MyAlloc(size_t size) throw()
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{
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if (size == 0)
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return 0;
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#ifdef _SZ_ALLOC_DEBUG
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fprintf(stderr, "\nAlloc %10d bytes; count = %10d", size, g_allocCount++);
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#endif
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return ::malloc(size);
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}
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void MyFree(void *address) throw()
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{
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#ifdef _SZ_ALLOC_DEBUG
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if (address != 0)
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fprintf(stderr, "\nFree; count = %10d", --g_allocCount);
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#endif
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::free(address);
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}
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#ifdef _WIN32
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void *MidAlloc(size_t size) throw()
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{
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if (size == 0)
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return 0;
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#ifdef _SZ_ALLOC_DEBUG
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fprintf(stderr, "\nAlloc_Mid %10d bytes; count = %10d", size, g_allocCountMid++);
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#endif
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return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
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}
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void MidFree(void *address) throw()
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{
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#ifdef _SZ_ALLOC_DEBUG
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if (address != 0)
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fprintf(stderr, "\nFree_Mid; count = %10d", --g_allocCountMid);
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#endif
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if (address == 0)
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return;
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::VirtualFree(address, 0, MEM_RELEASE);
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}
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static SIZE_T g_LargePageSize =
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#ifdef _WIN64
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(1 << 21);
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#else
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(1 << 22);
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#endif
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typedef SIZE_T (WINAPI *GetLargePageMinimumP)();
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bool SetLargePageSize()
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{
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GetLargePageMinimumP largePageMinimum = (GetLargePageMinimumP)
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::GetProcAddress(::GetModuleHandle(TEXT("kernel32.dll")), "GetLargePageMinimum");
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if (largePageMinimum == 0)
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return false;
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SIZE_T size = largePageMinimum();
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if (size == 0 || (size & (size - 1)) != 0)
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return false;
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g_LargePageSize = size;
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return true;
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}
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void *BigAlloc(size_t size) throw()
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{
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if (size == 0)
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return 0;
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#ifdef _SZ_ALLOC_DEBUG
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fprintf(stderr, "\nAlloc_Big %10d bytes; count = %10d", size, g_allocCountBig++);
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#endif
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if (size >= (1 << 18))
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{
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void *res = ::VirtualAlloc(0, (size + g_LargePageSize - 1) & (~(g_LargePageSize - 1)),
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MEM_COMMIT, PAGE_READWRITE);
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if (res != 0)
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return res;
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}
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return ::VirtualAlloc(0, size, MEM_COMMIT, PAGE_READWRITE);
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}
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void BigFree(void *address) throw()
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{
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#ifdef _SZ_ALLOC_DEBUG
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if (address != 0)
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fprintf(stderr, "\nFree_Big; count = %10d", --g_allocCountBig);
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#endif
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if (address == 0)
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return;
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::VirtualFree(address, 0, MEM_RELEASE);
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}
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#endif
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