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config/arch/arm.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jan 17 23:06:02 2010 +0100 (2010-01-17)
changeset 1740 c57458bb354d
parent 1597 fa8f3ab724f9
child 2111 5f4dbeb370e1
permissions -rw-r--r--
configure: do not require hg when configuring in an hg clone

When configuring in an hg clone, we need hg to compute the version string.
It can happen that users do not have Mercurial (eg. if they got a snapshot
rather that they did a full clone). In this case, we can still run, of
course, so simply fill the version string with a sufficiently explicit
value, that does not require hg. The date is a good candidate. 
     1 # ARM specific configuration file

     2 

     3 config ARCH_arm

     4     select ARCH_SUPPORTS_32

     5     select ARCH_DEFAULT_32

     6     select ARCH_SUPPORTS_BOTH_MMU

     7     select ARCH_DEFAULT_HAS_MMU

     8     select ARCH_SUPPORTS_BOTH_ENDIAN

     9     select ARCH_DEFAULT_LE

    10     select ARCH_SUPPORT_ARCH

    11     select ARCH_SUPPORT_CPU

    12     select ARCH_SUPPORT_TUNE

    13     select ARCH_SUPPORT_FPU

    14     help

    15       The ARM architecture, as defined by:

    16         http://www.arm.com/

    17 

    18 config ARCH_ARM_MODE

    19     string

    20     default "arm"   if ARCH_ARM_MODE_ARM

    21     default "thumb" if ARCH_ARM_MODE_THUMB

    22 

    23 choice

    24     bool

    25     prompt "Default instruction set mode"

    26     default ARCH_ARM_MODE_ARM

    27 

    28 config ARCH_ARM_MODE_ARM

    29     bool

    30     prompt "arm"

    31     help

    32       Defaults to emitting instructions in the ARM mode.

    33 

    34 config ARCH_ARM_MODE_THUMB

    35     bool

    36     prompt "thumb (EXPERIMENTAL)"

    37     depends on EXPERIMENTAL

    38     help

    39       Defaults to emitting instructions in the THUMB mode.

    40 

    41 endchoice

    42 

    43 config ARCH_ARM_INTERWORKING

    44     bool

    45     prompt "Use Thumb-interworking (READ HELP)"

    46     default n

    47     depends on EXPERIMENTAL

    48     help

    49       Excerpt from the gcc manual:

    50       

    51       > Generate code which supports calling between the ARM and Thumb

    52       > instruction sets. Without this option the two instruction sets

    53       > cannot be reliably used inside one program. The default is

    54       > [not to use interwork], since slightly larger code is generated

    55       > when [interwork] is specified.

    56 

    57 config ARCH_ARM_EABI

    58     bool

    59     prompt "Use EABI"

    60     default y

    61     help

    62       Set up the toolchain so that it generates EABI-compliant binaries.

    63 

    64 config ARCH_ARM_ABI_OK

    65     bool

    66     default y

    67     depends on ! ARCH_ARM_EABI

    68     select ARCH_SUPPORT_ABI
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