On 10/17/14 10:01, Benjamin Kaduk wrote:
The github copy is updated automatically from the official repo; it's
a fine place to start from.
I forked the openafs github repo and added the changes into the aarch64
branch from master here,
https://github.com/ecliptik/openafs/tree/aarch64
It's making it into the module phase again after putting in the
src/config/param.arm64_linux26.h back in, and the module build now
errors with:
CC [M]
/home/mwaltz/git/openafs/src/libafs/MODLOAD-3.13.0-34-generic-MP/rand-fortuna-kernel.o
/home/mwaltz/git/openafs/src/libafs/MODLOAD-3.13.0-34-generic-MP/rand-fortuna-kernel.c:
In function 'fortuna_add':
/home/mwaltz/git/openafs/src/libafs/MODLOAD-3.13.0-34-generic-MP/rand-fortuna-kernel.c:619:1:
sorry, unimplemented: '-mgeneral-regs-only' and floating point code
fortuna_add(const void *indata, int size, double entropi)
^
Doing some search for the -mgeneral-regs-only flag, this option is "only
valid with the aarch64-arm-none-eabi target." [1] and "you can prevent
the use of floating-point instructions or floating-point registers for
the aarch64-arm-none-eabi target with the -mgeneral-regs-only option." [2].
Reading the ARM docs it appears we should use the aarch64-arm-none-eabi
target, as using the armv8a-arm-none-eabi target is the 32-bit state of
armv8 [3]. I also am assuming we would want to not disable fpu registers
in order to avoid performance hits.
Unfortuantely I'm not sure where I can disable the use of the
-mgeneral-regs-only flag, as I don't see it in the Makefile or configure
as an option.
[1] -
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0774a/chr1392305446662.html
[2] -
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0774a/chr1392305424052.html
[3] -
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0774a/chr1383664654486.html
--
Micheal Waltz
Unix Configuration Management (go/ucm)
Qualcomm Inc.
Phone: 858-845-6083
Cell: 858-882-7079
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