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On 2021/8/12 00:39, WANG Xuerui wrote: |
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> Hi everyone, |
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> |
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> <snip> |
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> |
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> ## Gentoo porting plans |
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> |
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> I'm planning to take ARCH=loongarch for the port; and support the LP64 |
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> ABI |
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> first. I'd like to support both LP64 and ILP32 ABIs, but that's not a |
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> priority. |
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> |
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> The ABI flag might be named "ABI_LOONGARCH" but that's IMO a bit long |
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> (pun |
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> semi-intended); ARCH=loong and ABI_LOONG might be better, I'm open to |
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> suggestions. |
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> |
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> Because much of the ABI and even some toolchain internals are going |
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> through |
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> VERY fierce debate and rework, obviously the port will remain |
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> experimental |
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> for a long time. Some minimal support should get in tree though; doing so |
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> would ease a lot of pain for experimentation. I already hacked my way to |
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> generate working crossdev toolchains, and is halfway towards a rootfs |
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> with |
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> working Python (and Portage). I've already independently ported |
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> strace, and |
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> plan to do the same to libffi in the coming days which would give me |
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> Python. |
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> |
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> I'll do all work in my own loongson-overlay first, and upstream these |
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> when |
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> appropriate. Eventually I hope to have working crossdev, qemu-user |
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> emulation |
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> and proper catalyst support. |
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> |
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Some kind of "progress update": I've successfully built stage3 and |
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minimal installation CD for ARCH=loong; ABI_LOONG is not implemented due |
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to Loongson retracting 32-bit support themselves, this port is 64-bit |
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only for now, and may remain so forever (depends on Loongson's |
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intentions). All modifications are made in loongson-overlay[1]; no |
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ad-hoc patches to main Portage tree is needed after all. My used |
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catalyst specs are put at [2]; currently all hard-coded and no automation. |
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|
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I'm going to send patches for review gradually in the following days, as |
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the holiday here is over; however I'd like to know whether we need to |
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wait for the upstream merge of toolchain/kernel support before we can |
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take patches for ARCH=loong, or if there's more prerequisites. |
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|
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|
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[1]: https://github.com/xen0n/loongson-overlay |
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|
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[2]: https://github.com/xen0n/releng/tree/loong |
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