Re: search-a-little-harder-for-mkimage.patch

From: Mike Frysinger
Date: Thu Feb 08 2007 - 02:40:58 EST


On 2/8/07, Oleg Verych <olecom@xxxxxxxxxxxxxx> wrote:
On Thu, Feb 08, 2007 at 12:56:17AM -0500, Mike Frysinger wrote:
> On 2/8/07, Oleg Verych <olecom@xxxxxxxxxxxxxx> wrote:
> >> Check to see if `${CROSS_COMPILE}mkimage` exists and if not, fall back to
> >> the standard `mkimage`
> >
> >Why this can't be done by
> >
> > PATH=$CROSS_COMPILE:$PATH
> >
> >in your environment?
>
> because it wouldnt matter ? the tool is called
> "$CROSS_COMPILE-mkimage", it isnt $CROSS_COMPILE_PATH/mkimage

Well, i mean search for your `mkimage'.

Let's see how all this used in Makefiles (avr32, ppc, sh are same)

../arch/arm/boot/Makefile:

MKIMAGE := $(srctree)/scripts/mkuboot.sh
...
quiet_cmd_uimage = UIMAGE $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \
-C none -a $(ZRELADDR) -e $(ZRELADDR) \
-n 'Linux-$(KERNELRELEASE)' -d $< $@

type, which with bash or whatever, doesn't matter. All they need *your*
toolchain in $PATH, why not just to put "$CROSS_COMPILE-mkimage" instead
of $(CONFIG_SHELL) $(MKIMAGE) here? mkuboot.sh just searches $PATH for
mkimage and run it. Double overkill, no?

by this argument, why does mkuboot.sh exist at all then ? let's
simply delete mkuboot.sh and change all arch Makefile's like so:
- $(CONFIG_SHELL) $(MKIMAGE) ...
+ -mkimage ...

i of course prefer the existing solution: call the mkuboot.sh script
which checks for a few variations of the `mkimage` binary and if it
does not exist, output a friendly message
-mike
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