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Implemented Find4GBBase() on 32-bit non-Windows platforms. I am not sure the pointer acquired is any good though.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@266 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Maarten ter Huurne 2008-08-22 10:38:53 +00:00
parent e74dd5d9f9
commit 936bfbd867
1 changed files with 14 additions and 5 deletions
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19
Source/Core/Common/Src/MemArena.cpp
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@ -15,6 +15,9 @@
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "Common.h"
#include "MemArena.h"
#ifdef _WIN32
#include <windows.h>
#else
@ -24,9 +27,10 @@
#include <unistd.h>
#endif
#include "Common.h"
#include "MemArena.h"
#if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
#define MAP_ANONYMOUS MAP_ANON
#endif
const char* ram_temp_file = "/tmp/gc_mem.tmp";
@ -118,12 +122,17 @@ u64 MemArena::Find4GBBase()
#else
// 32 bit
#ifdef _WIN32
// The highest thing in any 1GB section of memory space is the locked cache. We only need to fit it.
u8* base = (u8*)VirtualAlloc(0, 0x31000000, MEM_RESERVE, PAGE_READWRITE);
if (base) {
VirtualFree(base, 0, MEM_RELEASE);
}
}
return((u64)base);
#else
void* base = mmap(0, 0x31000000, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_SHARED, 0, 0);
munmap(base, 0x31000000);
return reinterpret_cast<u64>(base);
#endif
#endif
}