[MacPorts] #48543: arm-none-eabi-gcc: Enable multilib support for more processors

[MacPorts]

#48543: arm-none-eabi-gcc: Enable multilib support for more processors
-------------------------+-------------------------------
 Reporter:  raimue@…     |      Owner:  stuartwesterman@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.3
 Keywords:               |       Port:  arm-none-eabi-gcc
-------------------------+-------------------------------
 arm-none-eabi-gcc @5.1.0_1 only targets a few ARM processor profiles:

 {{{
 $ arm-none-eabi-gcc -print-multi-lib
 .;
 thumb;@mthumb
 fpu;@mfloat-abi=hard
 }}}

 This patch enables a longer multilib list, adding support for more ARM
 processors:

 {{{
 $ arm-none-eabi-gcc -print-multi-lib
 .;
 thumb;@mthumb
 fpu;@mfloat-abi=hard
 armv6-m;@mthumb at march=armv6s-m
 armv7-m;@mthumb at march=armv7-m
 armv7e-m;@mthumb at march=armv7e-m
 armv7-ar/thumb;@mthumb at march=armv7
 armv7e-m/softfp;@mthumb at march=armv7e-m at mfloat-abi=softfp at mfpu=fpv4-sp-d16
 armv7e-m/fpu;@mthumb at march=armv7e-m at mfloat-abi=hard at mfpu=fpv4-sp-d16
 armv7-ar/thumb/softfp;@mthumb at march=armv7 at mfloat-abi=softfp at mfpu=vfpv3-d16
 armv7-ar/thumb/fpu;@mthumb at march=armv7 at mfloat-abi=hard at mfpu=vfpv3-d16
 }}}

 This should be closer to what the [https://launchpad.net/gcc-arm-embedded
 gcc-arm-embedded] upstream provides. The additional patch for multilib
 list support was taken from ArchLinux.

 I also found patches in [http://anonscm.debian.org/cgit/collab-maint/gcc-
 arm-none-eabi.git/tree/debian/patches Debian] taken from gcc-arm-embedded
 containing more improvements. However, these are still targeting the 4.9
 branch. I don't know if it would be worth to include these as well.

-- 
Ticket URL: <https://trac.macports.org/ticket/48543>
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