It's more trivial not to have a tool in the first place. It's also more trivial not to add a new dependency to our build process. Especially a dependency that is lacking in portability (ie. users can't build coreboot anymore because they can't run go)
Sorry, but no. 2015-10-23 17:32 GMT+02:00 ron minnich <rminn...@gmail.com>: > Build the tool in go. It's trivial. If you have an idea how it ought to work > I can set it up in the playground in a few minutes. > > ron > > On Fri, Oct 23, 2015 at 8:24 AM Patrick Georgi <pgeo...@google.com> wrote: >> >> Hi, >> >> Some mainboards come with soldered-on memory without SPD ROM. For >> these, we carry the SPD data in coreboot. >> >> Currently, they're stored in a hexdump format that is then converted >> to binary at build time. The various mechanisms of doing so fail on >> some platform or another: >> - "echo -e -n $stuff" isn't well-liked by some shells (emits "e -n >> $stuff") >> - "printf '\x42'" isn't well-liked by some shells (or /usr/bin/printf >> tools) that don't support hexadecimal formats >> - "printf '\0377'" isn't well-liked by some non-conforming, but existing >> shells >> - xxd -rg1 $file > $file.bin requires xxd, which comes with vim and >> may just not exist >> >> I see essentially two ways out of this, before we can start reducing >> duplication across the tree in that area: >> We could build our own tool to parse hex files and dump binary, or we >> could ship SPD data as binary from the start (and only have to >> concatenate them). >> >> The second option has the appeal of being much simpler (and there >> isn't really a "preferred form" for editing SPD data that I'm aware of >> - is there?), but looks icky at a glance because it's binary (but it's >> really just as impenetrable as the equivalent hexdump). >> >> So what do these files contain? Parameters (as in: facts) about the >> hardware's size, layout, and timing, and a bunch of vendor/model >> identifier strings. >> >> >> So, is there a third option that I'm missing? Other opinions? >> Patrick >> -- >> Google Germany GmbH, ABC-Str. 19, 20354 Hamburg >> Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: >> Hamburg >> Geschäftsführer: Matthew Scott Sucherman, Paul Terence Manicle >> >> -- >> coreboot mailing list: coreboot@coreboot.org >> http://www.coreboot.org/mailman/listinfo/coreboot -- Google Germany GmbH, ABC-Str. 19, 20354 Hamburg Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: Hamburg Geschäftsführer: Matthew Scott Sucherman, Paul Terence Manicle -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot
