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arch/arm: remove BR2_GCC_TARGET_ARCH definitions on ARM 

On ARM, we were defining both the CPU type and the architecture
variant. However, depending on the version of gcc, a given combination
of (CPU, architecture) may not be the same. Since the architecture
variant is implied by the CPU type, given the former is not necessary,
and we can simply specify the latter.

>From the gcc documentation:

  This specifies the name of the target ARM processor. GCC uses this
  name to derive the name of the target ARM architecture (as if
  specified by -march) and the ARM processor type for which to tune
  for performance (as if specified by -mtune). Where this option is
  used in conjunction with -march or -mtune, those options take
  precedence over the appropriate part of this option.

Note that we verified that for all BR2_GCC_TARGET_ARCH value that
existed, a proper BR2_GCC_TARGET_CPU value is defined.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Thomas Petazzoni 2014-10-21 22:27:09 +02:00 committed by Peter Korsgaard
parent 24dfbe71e0
commit fd828fd98f
1 changed files with 0 additions and 19 deletions
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19
arch/Config.in.arm
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@ -381,25 +381,6 @@ config BR2_GCC_TARGET_CPU
default "xscale" if BR2_xscale
default "iwmmxt" if BR2_iwmmxt
config BR2_GCC_TARGET_ARCH
default "armv4t" if BR2_arm920t
default "armv4t" if BR2_arm922t
default "armv5te" if BR2_arm926t
default "armv6j" if BR2_arm1136jf_s
default "armv6zk" if BR2_arm1176jz_s
default "armv6zk" if BR2_arm1176jzf_s
default "armv7-a" if BR2_cortex_a5
default "armv7-a" if BR2_cortex_a7
default "armv7-a" if BR2_cortex_a8
default "armv7-a" if BR2_cortex_a9
default "armv7-a" if BR2_cortex_a12
default "armv7-a" if BR2_cortex_a15
default "armv4" if BR2_fa526
default "armv7-a" if BR2_pj4
default "armv4" if BR2_strongarm
default "armv5te" if BR2_xscale
default "iwmmxt" if BR2_iwmmxt
config BR2_GCC_TARGET_ABI
default "aapcs-linux"