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<palmer>
conchuod: we'd still need V in the compiler's -march string, right?
<conchuod>
palmer: We don't (as of Andy's series) have any files that are compiled with v in -march
<palmer>
so it's just assembler?
<conchuod>
yah, with some arch directives
<conchuod>
palmer: iirc you said there was something wrong with that patch, but I explicitly just did the bare minimum make sparse work
<palmer>
ya, it was just something small related to the other defines that get set from V
<palmer>
I ran into it because I was digging through patchwork stuff
<conchuod>
I'll need something like that patch for CI once the users of vector start popping up.
<conchuod>
I noticed today that LKP are using a forked sparse for RISC-V now, good to have that running again there.
<palmer>
I hadn't noticed, though I guess now there's enough sparse forking that we should start to get worried
<palmer>
maybe next time something breaks let's go re-post the old patches, too?
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<conchuod>
Aye, sounds like a plan. It'll happen as soon as you merge vector and Heiko respins his crypto bits
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<palmer>
cool
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<drewfustini>
I'm cross compiling like I normally do for riscv but this time I used the Ubuntu config so the modules are huge. Normally I do INSTALL_MOD_STRIP=1 but it seems that my host version of strip gets called
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<drmpeg>
drewfustini: You can make the Ubuntu config modules a lot smaller by turning off CONFIG_DEBUG_INFO.
<drewfustini>
good idea, thanks
<drmpeg>
I turn off CONFIG_DEBUG_INFO, CONFIG_DEBUG_INFO_DWARF5, CONFIG_DEBUG_INFO_BTF, CONFIG_PAHOLE_HAS_SPLIT_BTF, CONFIG_DEBUG_INFO_BTF_MODULES and CONFIG_GDB_SCRIPTS.
<drmpeg>
About 3X smaller for vmlinuz.
<palmer>
IIRC we also have a few kernel hacker settings in defconfig, stuff like data structure sanity checking
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<drewfustini>
thanks, I'm trying to have an "ubuntu" experience while pulling out all the stuff that I know this system doesn't have. I have to load kernel and initrd over JTAG so smaller is better :)
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<drewfustini>
the broader goal is to mount an ubuntu rootfs from mmc and run docker on the riscv target. I'm hoping the ubuntu config enables all the things the docker needs (i presume things like cgroup and namespaces and 9p).
<conchuod>
Yah, I think xypron actually sent some patches for our defconfig to make docker usable a while back
<drewfustini>
ah, thanks, I'll take a look
<drewfustini>
I was thinking docker needed aufs which is not upstream but that is probably out dated knowledge
<Tenkawa>
aufs is for older configs.. unionfs is the newer option