GNU Arm Embedded Toolchain

GCC 4.7 and Cortex-R4F Big-Endian

Asked by jdobry

Hello,

Is it any chance to recompile GCC ARM Embedded 4.7 for Cortex-R4F Big-Endian?
I have great success with GCC ARM Embedded 4.6 2012q4 (update 3) with information from https://answers.launchpad.net/gcc-arm-embedded/+question/189066

But it is outdated for 4.7. For example this version haven't gcc/gcc/config/arm/t-armv7-r file.

Thanks.

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Launchpad Janitor (janitor) said : 		#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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jdobry (jdobry) said : 		#2

Nobody know?

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Zaihas Amri Fahdzan (zaihas-amri) said : 		#3

Hi All,
I also have the same problem.

Please help.

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Launchpad Janitor (janitor) said : 		#4

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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jdobry (jdobry) said : 		#5

"expired" in system bud question still need answer.

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jdobry (jdobry) said : 		#6

Do-it-yourself is also way to do it.
Here is patch for big-enadian Cortex A/R support
[code]
--- gcc/gcc/config/arm/t-mlibs 2013-05-14 08:33:45.169620160 +0200
+++ gcc/gcc/config/arm/t-mlibs.old 2013-03-11 11:09:23.000000000 +0100
@@ -14,9 +14,6 @@
 MULTILIB_DIRNAMES += softfp fpu
 MULTILIB_OPTIONS += mfpu=fpv4-sp-d16/mfpu=vfpv3-d16
 MULTILIB_DIRNAMES += fpv4-sp-d16 vfpv3-d16
-MULTILIB_OPTIONS += mbig-endian
-MULTILIB_DIRNAMES += big-endian
-

 MULTILIB_MATCHES = march?armv6s-m=mcpu?cortex-m0
 MULTILIB_MATCHES += march?armv6s-m=mcpu?cortex-m0plus
@@ -79,19 +76,10 @@
 MULTILIB_REQUIRED += mthumb/march=armv7
 MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=softfp/mfpu=vfpv3-d16
 MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=hard/mfpu=vfpv3-d16
-MULTILIB_REQUIRED += mthumb/march=armv7/mbig-endian
-MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=softfp/mfpu=vfpv3-d16/mbig-endian
-MULTILIB_REQUIRED += mthumb/march=armv7/mfloat-abi=hard/mfpu=vfpv3-d16/mbig-endian
 MULTILIB_OSDIRNAMES += mthumb/march.armv7=!armv7-ar/thumb
 MULTILIB_OSDIRNAMES += mthumb/march.armv7/mfloat-abi.hard/mfpu.vfpv3-d16=!armv7-ar/thumb/fpu
 MULTILIB_OSDIRNAMES += mthumb/march.armv7/mfloat-abi.softfp/mfpu.vfpv3-d16=!armv7-ar/thumb/softfp
-MULTILIB_OSDIRNAMES += mthumb/march.armv7/mbig-endian=!armv7-ar-bigE/thumb
-MULTILIB_OSDIRNAMES += mthumb/march.armv7/mfloat-abi.hard/mfpu.vfpv3-d16/mbig-endian=!armv7-ar-bigE/thumb/fpu
-MULTILIB_OSDIRNAMES += mthumb/march.armv7/mfloat-abi.softfp/mfpu.vfpv3-d16/mbig-endian=!armv7-ar-bigE/thumb/softfp
 MULTILIB_REUSE += mthumb/march.armv7=marm/march.armv7
 MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.softfp/mfpu.vfpv3-d16=marm/march.armv7/mfloat-abi.softfp/mfpu.vfpv3-d16
 MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.hard/mfpu.vfpv3-d16=marm/march.armv7/mfloat-abi.hard/mfpu.vfpv3-d16
-MULTILIB_REUSE += mthumb/march.armv7/mbig-endian=marm/march.armv7/mbig-endian
-MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.softfp/mfpu.vfpv3-d16/mbig-endian=marm/march.armv7/mfloat-abi.softfp/mfpu.vfpv3-d16/mbig-endian
-MULTILIB_REUSE += mthumb/march.armv7/mfloat-abi.hard/mfpu.vfpv3-d16/mbig-endian=marm/march.armv7/mfloat-abi.hard/mfpu.vfpv3-d16/mbig-endian
 endif
[/code]

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jdobry (jdobry) said : 		#7

Sorry I made "diff" in wrong order.
"-" means added lines