Rohit Arul Raj <rohitarul...@gmail.com> writes: > I am working with GCC 3.4.6 for a private target. The Alignment of all > pointer variables in my target is supposed to be 16bits. But it seems > that for void pointers, the alignment by default is taken as 8 bits. I > have defined the following macros to get the desired alignment but > still it doesn't seem to work. > > #define Pmode HImode > #define POINTER_SIZE 16 > > Are there any other macros that are supposed to be defined to get the > preferred alignment or any other way of implementing this?
Alignment is not set based on the size, though that often determines a default value. It is set based on macros in the CPU.h file, like BIGGEST_ALIGNMENT, DATA_ALIGNMENT, LOCAL_ALIGNMENT, STACK_SLOT_ALIGNMENT, etc. See the internals documentation. Ian
