[Buildroot] [git commit] arch/arm: remove OABI option

[Buildroot] [git commit] arch/arm: remove OABI option

[Peter Korsgaard]

commit: http://git.buildroot.net/buildroot/commit/?id=adf9646229fc5ede51297e2dc703926e1127aa6f
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master

OABI is more than legacy, it's dead.

New developments should go with EABI, since it so much better.
From the Debian EABI page [0] :
  - floating point performance, with or without an FPU is very much faster
  - mixing soft and hardfloat code is possible
  - structure packing is not as painful as it used to be
  - a more efficient syscall convention
  - more compatibility with various tools

[0] http://wiki.debian.org/ArmEabiPort

[Thomas: keep the ABI choice, as we are going to introduce EABIhf later].
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
---
 arch/Config.in.arm |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/arch/Config.in.arm b/arch/Config.in.arm
index 983cac4..4daa91f 100644
--- a/arch/Config.in.arm
+++ b/arch/Config.in.arm
@@ -72,19 +72,12 @@ choice
 	help
 	  Application Binary Interface to use
 
-	  Note:
-	    Using OABI is discouraged.
-
 config BR2_ARM_EABI_CHOICE
 	bool "EABI"
-config BR2_ARM_OABI
-	bool "OABI"
-	depends on !BR2_GCC_VERSION_4_7_X
 endchoice
 
 config BR2_ARM_EABI
 	def_bool y
-	depends on !BR2_ARM_OABI
 
 config BR2_ARM_ENABLE_NEON
 	bool "Enable NEON SIMD extension support"

[Buildroot] [git commit] arch/arm: remove OABI option

[Arnout Vandecappelle]

On 14/07/13 22:09, Peter Korsgaard wrote:
> commit: http://git.buildroot.net/buildroot/commit/?id=adf9646229fc5ede51297e2dc703926e1127aa6f
> branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master
>
> OABI is more than legacy, it's dead.
>
> New developments should go with EABI, since it so much better.
>>From the Debian EABI page [0] :
>    - floating point performance, with or without an FPU is very much faster
>    - mixing soft and hardfloat code is possible
>    - structure packing is not as painful as it used to be
>    - a more efficient syscall convention
>    - more compatibility with various tools
>
> [0] http://wiki.debian.org/ArmEabiPort
>
> [Thomas: keep the ABI choice, as we are going to introduce EABIhf later].
> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
> ---
>   arch/Config.in.arm |    7 -------
>   1 files changed, 0 insertions(+), 7 deletions(-)
>
> diff --git a/arch/Config.in.arm b/arch/Config.in.arm
> index 983cac4..4daa91f 100644
> --- a/arch/Config.in.arm
> +++ b/arch/Config.in.arm
> @@ -72,19 +72,12 @@ choice
>   	help
>   	  Application Binary Interface to use
>
> -	  Note:
> -	    Using OABI is discouraged.
> -
>   config BR2_ARM_EABI_CHOICE
>   	bool "EABI"
> -config BR2_ARM_OABI

  I think this one should have been added to Config.in.legacy. If someone 
has an old .config with OABI enabled, the conversion to EABI shouldn't be 
silent, I think...

  Regards,
  Arnout

> -	bool "OABI"
> -	depends on !BR2_GCC_VERSION_4_7_X
>   endchoice
>
>   config BR2_ARM_EABI
>   	def_bool y
> -	depends on !BR2_ARM_OABI
>
>   config BR2_ARM_ENABLE_NEON
>   	bool "Enable NEON SIMD extension support"
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> http://lists.busybox.net/mailman/listinfo/buildroot
>


-- 
Arnout Vandecappelle                          arnout at mind be
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