[RFC 14/18] arm: msm: add v7 support for compiler version-4.1.1

[Russell King - ARM Linux]

Is it really worth adding support for these old (and probably buggy)
compiler versions?

In any case, certainly not in this way.  Detect options by using the
cc-option makefile call, rather than writing your own way to get the
compiler version.

On Mon, Jan 11, 2010 at 02:47:33PM -0800, Daniel Walker wrote:
> From: Taniya Das <tdas at qualcomm.com>
> 
> Signed-off-by: Taniya Das <tdas at qualcomm.com>
> Signed-off-by: Daniel Walker <dwalker at codeaurora.org>
> ---
>  arch/arm/Makefile |    8 +++++++-
>  1 files changed, 7 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index e9da084..aa32b39 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -50,7 +50,13 @@ comma = ,
>  # Note that GCC does not numerically define an architecture version
>  # macro, but instead defines a whole series of macros which makes
>  # testing for a specific architecture or later rather impossible.
> -arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
> +CONFIG_SHELL	:=/bin/sh
> +GCC_VERSION	:= $(shell $(CONFIG_SHELL) $(PWD)/scripts/gcc-version.sh $(CROSS_COMPILE)gcc)
> +ifeq ($(GCC_VERSION),0401)
> +arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a)
> +else
> +arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7a)
> +endif
>  arch-$(CONFIG_CPU_32v6)		:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
>  # Only override the compiler option if ARMv6. The ARMv6K extensions are
>  # always available in ARMv7
> -- 
> 1.6.3.3
>