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[NTOS]: Build fix.

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svn path=/trunk/; revision=49002
This commit is contained in:
Sir Richard 2010-10-05 17:01:41 +00:00
parent 947bd17104
commit d8f6e7ccc9
1 changed files with 72 additions and 0 deletions
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72
reactos/include/reactos/exeformat.h
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@ -95,6 +95,78 @@ typedef NTSTATUS (NTAPI * PEXEFMT_LOADER)
#define EXEFMT_LOADED_ELF32 (0x00000004)
#define EXEFMT_LOADED_ELF64 (0x00000005)
/* TODO: Intsafe should be made into a library, as it's generally useful */
static __inline BOOLEAN Intsafe_CanAddULongPtr(IN ULONG_PTR Addend1, IN ULONG_PTR Addend2)
{
return Addend1 <= (MAXULONG_PTR - Addend2);
}
static __inline BOOLEAN Intsafe_CanAddLong64(IN LONG64 Addend1, IN LONG64 Addend2)
{
return Addend1 <= (MAXLONGLONG - Addend2);
}
static __inline BOOLEAN Intsafe_CanAddULong32(IN ULONG Addend1, IN ULONG Addend2)
{
return Addend1 <= (MAXULONG - Addend2);
}
static __inline BOOLEAN Intsafe_AddULong32(OUT PULONG Result, IN ULONG Addend1, IN ULONG Addend2)
{
if(!Intsafe_CanAddULong32(Addend1, Addend2))
return FALSE;
*Result = Addend1 + Addend2;
return TRUE;
}
static __inline BOOLEAN Intsafe_CanMulULong32(IN ULONG Factor1, IN ULONG Factor2)
{
return Factor1 <= (MAXULONG / Factor2);
}
static __inline BOOLEAN Intsafe_CanOffsetPointer(IN CONST VOID * Pointer, IN SIZE_T Offset)
{
/* FIXME: (PVOID)MAXULONG_PTR isn't necessarily a valid address */
return Intsafe_CanAddULongPtr((ULONG_PTR)Pointer, Offset);
}
static __inline BOOLEAN IsPowerOf2(IN ULONG Number)
{
if(Number == 0)
return FALSE;
return (Number & (Number - 1)) == 0;
}
static __inline ULONG ModPow2(IN ULONG Address, IN ULONG Alignment)
{
ASSERT(IsPowerOf2(Alignment));
return Address & (Alignment - 1);
}
static __inline BOOLEAN IsAligned(IN ULONG Address, IN ULONG Alignment)
{
return ModPow2(Address, Alignment) == 0;
}
static __inline BOOLEAN AlignUp(OUT PULONG AlignedAddress, IN ULONG Address, IN ULONG Alignment)
{
ULONG nExcess = ModPow2(Address, Alignment);
if(nExcess == 0)
{
*AlignedAddress = Address;
return nExcess == 0;
}
else
return Intsafe_AddULong32(AlignedAddress, Address, Alignment - nExcess);
}
#define PEFMT_FIELDS_EQUAL(TYPE1_, TYPE2_, FIELD_) \
( \
(FIELD_OFFSET(TYPE1_, FIELD_) == FIELD_OFFSET(TYPE2_, FIELD_)) && \
(RTL_FIELD_SIZE(TYPE1_, FIELD_) == RTL_FIELD_SIZE(TYPE2_, FIELD_)) \
)
#endif
/* EOF */