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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*++
Module Name:
local.c
Abstract:
Implementation of local memory management functions.
Revision History:
--*/
#include "pal/palinternal.h"
#include "pal/dbgmsg.h"
SET_DEFAULT_DEBUG_CHANNEL(MEM);
#ifdef TIZEN_ASAN_ENVIRONMENT
extern "C" {
extern void __sanitizer_disable_interceptors() __attribute__ ((weak));
extern void __sanitizer_enable_interceptors() __attribute__ ((weak));
extern bool __sanitizer_interceptors_are_enabled() __attribute__ ((weak));
}
#endif
static
int
AllocFlagsToHeapAllocFlags (IN UINT AllocFlags,
OUT PUINT pHeapallocFlags)
{
int success = 1;
UINT newFlags = 0, flags = AllocFlags;
if (flags & LMEM_ZEROINIT) {
newFlags |= HEAP_ZERO_MEMORY;
flags &= ~LMEM_ZEROINIT;
}
if (flags != 0) {
ASSERT("Invalid parameter AllocFlags=0x%x\n", AllocFlags);
SetLastError(ERROR_INVALID_PARAMETER);
success = 0;
}
if (success) {
*pHeapallocFlags = newFlags;
}
return success;
}
/*++
Function:
LocalAlloc
See MSDN doc.
--*/
HLOCAL
PALAPI
LocalAlloc(
IN UINT uFlags,
IN SIZE_T uBytes)
{
LPVOID lpRetVal = NULL;
PERF_ENTRY(LocalAlloc);
ENTRY("LocalAlloc (uFlags=%#x, uBytes=%u)\n", uFlags, uBytes);
if (!AllocFlagsToHeapAllocFlags (uFlags, &uFlags)) {
goto done;
}
#ifdef TIZEN_ASAN_ENVIRONMENT
if (__sanitizer_interceptors_are_enabled != NULL)
{
bool san_enabled;
san_enabled = __sanitizer_interceptors_are_enabled();
if (!san_enabled) {
__sanitizer_enable_interceptors();
}
lpRetVal = HeapAlloc( GetProcessHeap(), uFlags, uBytes );
if (!san_enabled) {
__sanitizer_disable_interceptors();
}
}
else
#endif
{
lpRetVal = HeapAlloc( GetProcessHeap(), uFlags, uBytes );
}
done:
LOGEXIT( "LocalAlloc returning %p.\n", lpRetVal );
PERF_EXIT(LocalAlloc);
return (HLOCAL) lpRetVal;
}
/*++
Function:
LocalReAlloc
See MSDN doc.
--*/
HLOCAL
PALAPI
LocalReAlloc(
IN HLOCAL hMem,
IN SIZE_T uBytes,
IN UINT uFlags)
{
LPVOID lpRetVal = NULL;
PERF_ENTRY(LocalReAlloc);
ENTRY("LocalReAlloc (hMem=%p, uBytes=%u, uFlags=%#x)\n", hMem, uBytes, uFlags);
if (uFlags != LMEM_MOVEABLE) {
// Currently valid iff uFlags is LMEM_MOVEABLE
ASSERT("Invalid parameter uFlags=0x%x\n", uFlags);
SetLastError(ERROR_INVALID_PARAMETER);
goto done;
}
uFlags = 0;
lpRetVal = HeapReAlloc(GetProcessHeap(), uFlags, hMem, uBytes);
done:
LOGEXIT("LocalReAlloc returning %p.\n", lpRetVal);
PERF_EXIT(LocalReAlloc);
return (HLOCAL)lpRetVal;
}
/*++
Function:
LocalFree
See MSDN doc.
--*/
HLOCAL
PALAPI
LocalFree(
IN HLOCAL hMem)
{
BOOL bRetVal = FALSE;
PERF_ENTRY(LocalFree);
ENTRY("LocalFree (hmem=%p)\n", hMem);
if ( hMem )
{
#ifdef TIZEN_ASAN_ENVIRONMENT
if (__sanitizer_interceptors_are_enabled != NULL)
{
bool san_enabled;
san_enabled = __sanitizer_interceptors_are_enabled();
if (!san_enabled) {
__sanitizer_enable_interceptors();
}
bRetVal = HeapFree( GetProcessHeap(), 0, hMem );
if (!san_enabled) {
__sanitizer_disable_interceptors();
}
}
else
#endif
{
bRetVal = HeapFree( GetProcessHeap(), 0, hMem );
}
}
else
{
bRetVal = TRUE;
}
LOGEXIT( "LocalFree returning %p.\n", bRetVal == TRUE ? (HLOCAL)NULL : hMem );
PERF_EXIT(LocalFree);
return bRetVal == TRUE ? (HLOCAL)NULL : hMem;
}
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