[Buildroot] Buildroot toolchain for arm
Gustavo Zacarias
gustavo at zacarias.com.ar
Wed Mar 23 16:08:55 UTC 2011
On 03/23/11 08:50, Chia-Hung Chou wrote:
> I want to build the toolchain to compile into fully thumb
> instruction. In the menuconfig, I add the "--with-mode=thumb" into gcc
> options.
> After I make the buildroot, there are some Errors :
> make[5]: *** [libmudflap.la <http://libmudflap.la>] Error 1
> make[5]: Leaving directory
> '/home/chiahung/buildroot-2011.02/output/toolchain/gcc-4.4.5-final/arm-unknown-linux-uclibic/libmudflap'
> make[4]: *** [all-recursive] Error 1
> make[4]: Leaving directory
> '/home/chiahung/buildroot-2011.02/output/toolchain/gcc-4.4.5-final/arm-unknown-linux-uclibic/libmudflap'
> make[3]: *** [all] Error 2
> make[3]: Leaving directory
> '/home/chiahung/buildroot-2011.02/output/toolchain/gcc-4.4.5-final/arm-unknown-linux-uclibic/libmudflap'
> make[2]: *** [all-target-libmudflap] Error 2
> make[2]: Leaving directory
> '/home/chiahung/buildroot-2011.02/output/toolchain/gcc-4.4.5-final'
> make[1]: *** [all-target-libmudflap] Error 2
> make[1]: Leaving directory
> '/home/chiahung/buildroot-2011.02/output/toolchain/gcc-4.4.5-final'
> make: ***
> [/home/chiahung/buildroot-2011.02/output/toolchain/gcc-4.4.4.5-final/.compiled]
> Error 2
> I try a lot of ways but I still can't solve it. Is there any way to
> solve or to build a toolchain that could compile code into fully thumb
> instruction??
>
> thanks~
Yes, you might want to use "-mthumb" in BR2_TARGET_OPTIMIZATION.
See the gcc manpage.
Regards.
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