multi-core ARM configuration

Niels Möller nisse at
Thu Oct 23 11:41:49 UTC 2014

Hannes Mehnert <hannes at> writes:

> I'm using gmp on ARM (AllWinner A20, which is a dual core A7).
> gmplib's config.guess doesn't handle multiple ARM CPUs. The attached
> patch fixes this (against 6.0.0a, but also applies to master).

How does it fail, and what does /proc/spuinfo look like? I've done some
gmp work on a pandboard with a dual core A9, without noticing any

On that board, I get only a single "CPU part" line though (see below).


nisse at arm:~$ cat /proc/cpuinfo 
Processor       : ARMv7 Processor rev 2 (v7l)
processor       : 0
BogoMIPS        : 599.22

processor       : 1
BogoMIPS        : 599.22

Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls 
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x1
CPU part        : 0xc09
CPU revision    : 2

Hardware        : OMAP4 Panda board
Revision        : 0020
Serial          : 0000000000000000

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