source: Daodan/MSYS2/mingw32/i686-w64-mingw32/include/rtinfo.h

/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 */
#ifndef __ROUTING_RTINFO_H__
#define __ROUTING_RTINFO_H__

#define ALIGN_SIZE 0x00000008
#define ALIGN_SHIFT (ALIGN_SIZE - 0x00000001)
#define ALIGN_MASK_POINTER (~(UINT_PTR)ALIGN_SHIFT)
#define ALIGN_MASK_LENGTH (~ALIGN_SHIFT)
#define ALIGN_MASK (~ALIGN_SHIFT)

#define ALIGN_POINTER(ptr) { (ptr) = (PVOID)((DWORD_PTR)(ptr) + ALIGN_SHIFT); (ptr) = (PVOID)((DWORD_PTR)(ptr) & ALIGN_MASK_POINTER); }
#define ALIGN_LENGTH(length) { (length) = (DWORD)((length) + ALIGN_SHIFT); (length) = (DWORD)((length) & ALIGN_MASK_LENGTH); }
#define IS_ALIGNED(ptr) (((UINT_PTR)(ptr) & ALIGN_SHIFT)==0x00000000)

typedef struct _RTR_TOC_ENTRY {
  ULONG InfoType;
  ULONG InfoSize;
  ULONG Count;
  ULONG Offset;
} RTR_TOC_ENTRY,*PRTR_TOC_ENTRY;

#define RTR_INFO_BLOCK_VERSION 1

typedef struct _RTR_INFO_BLOCK_HEADER {
  ULONG Version;
  ULONG Size;
  ULONG TocEntriesCount;
  RTR_TOC_ENTRY TocEntry[1];
} RTR_INFO_BLOCK_HEADER,*PRTR_INFO_BLOCK_HEADER;

#define GetInfoFromTocEntry(hdr,toc) (((toc)->Offset < (hdr)->Size) ? ((PVOID)(((PBYTE)(hdr)) + (toc)->Offset)) : NULL)
#endif