proposal: all: port to linux/mips_siflower

[wangjony]

GL.iNet GL-SFT1200 WiFi Router
Architecture: mips_siflower
Operating System: OpenWrt
The GL.iNet GL-SFT1200 comes with an Siflower SF19A28 mips_siflower processor,128 MB flash, and 128 MB RAM.
GL.iNet:https://github.com/gl-inet/gl-infra-builder
siflower SDK:https://github.com/Siflower/1806_SDK
Hope to adapt mips_siflower，Thank you so much

[seankhliao]

What exactly is being proposed here?

[wangjony]

What exactly is being proposed here?

support for openwrt( Linux )running on mips_siflower architecture.🙏🏻🙏🏻🙏🏻
希望go语言原生支持mips_siflower架构运行在openwrt。

[bcmills]

(CC @golang/mips)

Go already supports four MIPS GOARCH settings: mips, mips64, mipsle, and mips64le, with two GOMIPS settings (hardfloat and softfloat). Does one of those combinations work with the instruction set supported by siflower? If not, what causes them to be incompatible?

[rittneje]

@bcmills I think you meant "GOARCH settings" not "GOOS" settings. (Just to avoid confusion.)

[bcmills]

Indeed; edited my previous comment.

[Rongronggg9]

Found more info here: messense/aliyundrive-webdav#485

虽然也是mips架构，但由于经过了魔改，不论是mips_24kc还是mipsel_24kc的elf均无法在其上运行。

Though it adopts MIPS too, tons of modifications make ELF built for mips(el)_24kc unable to execute on it.

[bcmills]

That suggest that support for this chip would be considered a new port for Go. See https://go.dev/wiki/PortingPolicy#requirements-for-a-new-port for what is required to add one.