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// Copyright 2010 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 "runtime.h"
#include "os.h"
#include "defs.h"
#include "malloc.h"
enum {
MEM_COMMIT = 0x1000,
MEM_RESERVE = 0x2000,
MEM_RELEASE = 0x8000,
PAGE_EXECUTE_READWRITE = 0x40,
};
static void
abort(int8 *name)
{
uintptr errno;
errno = (uintptr)runtime·stdcall(runtime·GetLastError, 0);
runtime·printf("%s failed with errno=%d\n", name, errno);
runtime·throw(name);
}
#pragma dynimport runtime·VirtualAlloc VirtualAlloc "kernel32.dll"
#pragma dynimport runtime·VirtualFree VirtualFree "kernel32.dll"
extern void *runtime·VirtualAlloc;
extern void *runtime·VirtualFree;
void*
runtime·SysAlloc(uintptr n)
{
void *v;
v = runtime·stdcall(runtime·VirtualAlloc, 4, nil, n, MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
if(v == 0)
abort("VirtualAlloc");
return v;
}
void
runtime·SysUnused(void *v, uintptr n)
{
USED(v);
USED(n);
}
void
runtime·SysFree(void *v, uintptr n)
{
uintptr r;
r = (uintptr)runtime·stdcall(runtime·VirtualFree, 3, v, 0, MEM_RELEASE);
if(r == 0)
abort("VirtualFree");
}
void
runtime·SysMemInit(void)
{
}
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