On Thu, 4 Dec 1997, Ariel Faigon wrote:
> SGI has 2 programming models (source interpretation):
> 1) 64 bit (aka N64 or 64)
> compiled using "cc -64"
> sizeof(long) = sizeof(char *) = 8
> sizeof(int) = 4
> 2) Old 32-bits (aka o32) compiled using "cc -32"
> New 32-bits (aka n32) compiled using "cc -n32"
> sizeof(long long) = 8
> sizeof(int) = sizeof(long) = sizeof(char *) = 4
> Going into binaries: o32 and n32 are not the same, the code
> generated by n32 uses more efficient calling conventions
> and more registers and cannot run on old versions of the OS.
> New hardware and versions of the OS can run all of them except
> if your 'uname' says 'IRIX' and not 'IRIX64' it can compile
> (but not run) N64 binaries.
The architecture of the binary RPM concerns itself with the CPU only.
>From what I understand in your explanation, supporting o32, n32 and 64
executables is a function of the OS and the libraries. RPM binaries take
care of this already with their OS name field and their libraries.
So, I don't think we'd need to concern ourself with the o32, n32 and 64
options within the architecture field.
Does this make sense? It's important that we don't screw ourselves over.
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