Re: [PATCH 2/2] Add CONFIG_READABLE_ASM

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Hi Andi,

On Wed, Mar 28, 2012 at 20:51, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> +ifdef CONFIG_READABLE_ASM
> +# Disable optimizations that make assembler listings hard to read.
> +# reorder blocks reorders the control in the function
> +# ipa clone creates specialized cloned functions
> +# partial inlining inlines only parts of functions
> +KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
> +                 $(call cc-option,-fno-ipa-cp-clone,) \
> +                 $(call cc-option,-fno-partial-inlining)
> +endif

This (now in linux-next) causes m68k/allmodconfig to fail for me:

  CHK     include/linux/version.h
  CHK     include/generated/utsrelease.h
  CC      kernel/bounds.s
cc1: error: unrecognized command line option "-fno-ipa-cp-clone"

Somehow, "$(call cc-option,-fno-ipa-cp-clone,)" doesn't detect that my
toolchain (gcc version 4.1.2 20061115 (prerelease) (Ubuntu 4.1.1-21))
doesn't support this option.

I tried playing with the trailing comma (why do the first 2 tests have it,
and the 3rd one doesn't?), but that didn't make a difference.

linux-next builds (using a newer toolchain) don't show this.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
--
To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]    [Yosemite Photos]    [Free Online Dating]     [Linux Kernel]     [Linux SCSI]     [XFree86]

Add to Google Powered by Linux