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    SubjectRe: [PATCH 02/60] microblaze_v4: Makefiles for Microblaze cpu
    On Thu, Jun 26, 2008 at 02:29:31PM +0200, monstr@seznam.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



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