[U-Boot] GCC5.x support for old u-boot version

[Ayoub Zaki]

Hello Jeroen,


that fixed the build problem ! many thanks:-)

Best regards,
Ayoub

2015-11-25 10:54 GMT+01:00 Jeroen Hofstee <dasuboot at myspectrum.nl>:

> Hello Ayoub,
>
>
> On 25-11-15 10:35, Ayoub Zaki wrote:
>
>> we have an am335x based custom board that use for our Project.
>> At the moment only a customized version of uboot-2013.01.01 supports this
>> board.
>> As we use Yocto toolchains and we plan to upgrade to latest Yocto-2.0 that
>> comes with GCC5.2.
>>
>> I would like to be able to build this custom old version with newer
>> toolchains.
>>
>> For that I added from new u-boot the file :
>>   include/linux/compiler-gcc5.h
>>
>> But still having some compile errors :
>>
>> | arm-poky-linux-gnueabi-gcc  --sysroot=/yocto/build/tmp/sysroots/shc  -g
>> -Os   -fno-common -ffixed-r8 -msoft-float  -D__KERNEL__
>> -DCONFIG_SYS_TEXT_BASE=0x80800000 -DCONFIG_SPL_TEXT_BASE=0x402F0400
>>
>> -I/yocto/build/tmp/work/shc-poky-linux-gnueabi/u-boot-shc/1.0-r1/git/include
>> -fno-builtin -ffreestanding -nostdinc -isystem
>>
>> /yocto/build/tmp/sysroots/x86_64-linux/usr/lib/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/5.2.0/include
>> -pipe  -DCONFIG_ARM -D__ARM__ -marm -mno-thumb-interwork -mabi=aapcs-linux
>> -march=armv7-a -mcpu=cortex-a8 -Wall -Wstrict-prototypes
>> -fno-stack-protector -Wno-format-nonliteral -Wno-format-security
>> -fstack-usage     -o s_record.o s_record.c -c
>> | main.c:62:6: error: 'show_boot_progress' aliased to external symbol
>> '__show_boot_progress'
>> |  void show_boot_progress (int val) __attribute__((weak,
>> alias("__show_boot_progress")));
>> |       ^
>> | make[1]: *** [main.o] Error 1
>> | make[1]: Leaving directory
>> `/yocto/build/tmp/work/shc-poky-linux-gnueabi/u-boot/1.0-r1/git/common'
>> | make: *** [common/libcommon.o] Error 2
>>
>> Any chance to backport GCC5 support to old u-boot version ?
>>
>
> Perhaps this helps "inline: use the gcc inline version instead of the c99
> one."
> http://lists.denx.de/pipermail/u-boot/2014-May/180709.html
>
> Regards,
> Jeroen
>