-----Original Message----- From: Simon Goldschmidt [mailto:simon.k.r.goldschmidt@gmail.com] Sent: Saturday, December 29, 2018 5:04 AM To: Marek Vasut marex@denx.de; Ooi, Joyce joyce.ooi@intel.com; Michal Simek michal.simek@xilinx.com; Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com Cc: u-boot@lists.denx.de; Chee, Tien Fong tien.fong.chee@intel.com; See, Chin Liang chin.liang.see@intel.com Subject: Re: [U-Boot] [PATCH] rsa: read out public_exponent value based on 32- bit alignment
Am 28.12.2018 um 19:44 schrieb Marek Vasut:
On 12/28/18 2:32 PM, Ooi, Joyce wrote:
-----Original Message----- From: Marek Vasut [mailto:marex@denx.de] Sent: Friday, December 28, 2018 6:05 PM To: Ooi, Joyce joyce.ooi@intel.com; Michal Simek michal.simek@xilinx.com; Siva Durga Prasad Paladugu siva.durga.paladugu@xilinx.com Cc: u-boot@lists.denx.de; See, Chin Liang chin.liang.see@intel.com; Chee, Tien Fong tien.fong.chee@intel.com; Tan, Ley Foon ley.foon.tan@intel.com Subject: Re: [PATCH] rsa: read out public_exponent value based on 32-bit alignment
On 12/28/18 8:30 AM, Ooi, Joyce wrote:
Hi Marek,
Hi,
Any comments about this?
Use get_unaligned() ?
It seems that if USE_HOSTCC is enabled, get_unaligned_* can't be used.
Can this be fixed ?
I was working on a patch (or series?) to make USE_HOSTCC more generic (i.e. concentrate the HOSTCC specific things in some header files, hopefully) as I have stumbled accross this when adding compression/uncompression to mkimage, but I haven't found the time to complete this, yet.
Nevertheless, I think this is where we should go, rather then add yet more #ifdef USE_HOSTCC to C files...
Regards, Simon
Can you please help to fix this, Simon? I'm not too familiar with USE_HOSTCC.. Thanks.
In lib/rsa/rsa-mod-exp.c, #ifndef USE_HOSTCC .. #include <asm/unaligned.h> #else #include "fdt_host.h" #include "mkimage.h" #include <fdt_support.h> #endif
So, to make it more generic (with or without USE_HOSTCC enabled), I read out the public_exponent as two 32-bit datas and then concatenating them into a 64-bit data.
See above -- I'd much rather see the get_unaligned() fixed and used.