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patches/uClibc/0.9.32/140-ARM-reorder-Use-BX-option.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 commit d64b91a6d4fa1a3ac1d01fa7593d67c5e5ed5101

     2 Author: Yann E. MORIN <yann.morin.1998@anciens.enib.fr>

     3 Date:   Sun Jan 9 01:45:04 2011 +0100

     4 

     5     ARM: reorder "Use BX" option

     6     

     7     "Use BX" is not available on all CPUs, so the option depends on

     8     a correct CPU to be chosen . It is weird that e BX" then appears

     9     _above_ the CPU selection, not below.

    10     

    11     Move the "Use BX" after the CPU selection.

    12     

    13     Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

    14     Cc: Khem Raj <raj.khem@gmail.com>

    15     Cc: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

    16     Cc: Carmelo AMOROSO <carmelo.amoroso@st.com>

    17     Signed-off-by: Khem Raj <raj.khem@gmail.com>

    18     Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

    19 

    20 diff --git a/extra/Configs/Config.arm b/extra/Configs/Config.arm

    21 index eb27a33..dd63b80 100644

    22 --- a/extra/Configs/Config.arm

    23 +++ b/extra/Configs/Config.arm

    24 @@ -30,13 +30,6 @@ config CONFIG_ARM_EABI

    25  

    26  endchoice

    27  

    28 -config USE_BX

    29 -	bool "Use BX in function return"

    30 -	default y

    31 -	depends on !CONFIG_GENERIC_ARM && !CONFIG_ARM610 && !CONFIG_ARM710

    32 -	help

    33 -	  Use BX instruction for THUMB aware architectures.

    34 -

    35  choice

    36  	prompt "Target Processor Type"

    37  	default CONFIG_GENERIC_ARM

    38 @@ -131,3 +124,10 @@ config CONFIG_ARM_IWMMXT

    39  	select ARCH_HAS_MMU

    40  

    41  endchoice

    42 +

    43 +config USE_BX

    44 +	bool "Use BX in function return"

    45 +	default y

    46 +	depends on !CONFIG_GENERIC_ARM && !CONFIG_ARM610 && !CONFIG_ARM710

    47 +	help

    48 +	  Use BX instruction for THUMB aware architectures.
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