linux-kernel - Re: [PATCH 02/60] microblaze_v4: Makefiles for Microblaze cpu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080626143623.GC30954@cs181140183.pp.htv.fi>
Date:	Thu, 26 Jun 2008 17:36:23 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	monstr@...nam.cz
Cc:	linux-kernel@...r.kernel.org, arnd@...db.de,
	linux-arch@...r.kernel.org, stephen.neuendorffer@...inx.com,
	John.Linn@...inx.com, john.williams@...alogix.com, matthew@....cx,
	will.newton@...il.com, drepper@...hat.com,
	microblaze-uclinux@...e.uq.edu.au, grant.likely@...retlab.ca,
	linuxppc-dev@...abs.org, vapier.adi@...il.com,
	alan@...rguk.ukuu.org.uk, hpa@...or.com,
	Michal Simek <monstr@...str.eu>
Subject: Re: [PATCH 02/60] microblaze_v4: Makefiles for Microblaze cpu

On Thu, Jun 26, 2008 at 02:29:31PM +0200, monstr@...nam.cz wrote:
>...
> --- /dev/null
> +++ b/arch/microblaze/Makefile
>...
> +# Work out HW multipler support.  This is icky.
> +# 1. Spartan2 has no HW multiplers.
> +# 2. MicroBlaze v3.x always uses them, except in Spartan 2
> +# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
> +ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
> +  ifeq ($(CPU_MAJOR),3)
> +    CPUFLAGS-1 += -mno-xl-soft-mul
> +  else
> +    # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
> +    CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
> +    CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
> +  endif
> +endif
> +CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
> +CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
> +CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP) += -mxl-pattern-compare
> +
> +CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
> +
> +# The various CONFIG_XILINX cpu features options are integers 0/1/2...
> +# rather than bools y/n
> +CFLAGS += $(CPUFLAGS-1)
> +CFLAGS += $(CPUFLAGS-2)
>...

Why are the options not bools?

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/