Re: [OE-core] [SDK] How to use the gold linker

["Khem Raj" <raj.khem@gmail.com>]

On 12/14/20 3:14 AM, Christian Eggers wrote:
> Branch: dunfell
> Arch: arm
> 
> When I set -fuse-ld=gold with the Yocto SDK, the bfd linker is used anyway:
> 
>> . /opt/poky-tiny/3.1.4/environment-setup-cortexa7t2hf-neon-vfpv4-poky-linux-musleabi
>> ${CC} -fuse-ld=gold -Wl,--threads -o test test.c
> /opt/poky-tiny/3.1.4/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/real-ld: unrecognized option '--threads'
> /opt/poky-tiny/3.1.4/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/real-ld: use the --help option for usage information
> 
> When I call the "real-ld" with -h, I can see that it's the BFD linker.
> 
>> ${CC} -print-prog-name=ld
> /opt/poky-tiny/3.1.4/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/9.3.0/ld
> 
>> ${CC} -fuse-ld=bfd -print-prog-name=ld
> ld.bfd
> 
>> ${CC} -fuse-ld=gold -print-prog-name=ld
> ld.gold
> 
> Compared to other cross toolchains I use, the output of the previous two commands
> miss the full path to the linker. The gold linker is part of my SDK:
> 
>> arm-poky-linux-musleabi-ld.gold --help
> Usage: arm-poky-linux-musleabi-ld.gold [options] file...
> Options:
>    --help                      Report usage information
> ...
> 
> How can I use the gold linker from gcc (without making it default)?
> 

This is kind of known and kind of works as intended, see
https://git.openembedded.org/openembedded-core/tree/meta/recipes-devtools/gcc/gcc-cross-canadian.inc#n132

You might want to try commenting it out and see if it works for you in 
resulting SDK
> regards
> Christian
> 
> 
> 
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