I finally figured it out! The missing magic was 'dontPatchELF = true'. I've seen a CUPS test page come out, and have opened a PR: https://github.com/NixOS/nixpkgs/pull/27031. Thanks for renewing my motivation, Nawal! :)
On Thu, Jun 22, 2017 at 2:55 AM, Nawal Husnoo <na...@husnoo.com> wrote: > Sample code from my attempts might help: > > mkdir -p $out/ > cp -r $src/* $out/ > > > chmod 777 -R $out/* > > > patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \ > --set-rpath $libPath:$out/lib \ > $out/bin/cnijnpr > > ln -sv $out/lib/libcnbpcmcm356.so.8.0.1 $out/lib/libcnbpcmcm356.so > > LIBTIFF=$(pkg-config --libs-only-L libtiff-4 | sed -e > 's/-L//g')/libtiff.so.5 > ln -s $LIBTIFF $out/lib/libtiff.so.4 > > ldd $out/lib/cups/filter/pstocanonij > > > The latter looks inside the binary and tries to link it (dynamically) - it > should show what's still missing. The tiff business just makes tiff > available to the canon driver. > > > The rpath bit in the patchelf command is probably what you're looking for > initially. > > hth > > Nawal > > > > > > > > > > On 22 Jun 2017 03:24, "Matt McHenry" <m...@mchenryfamily.org> wrote: >> >> Okay, patchelf seemed promising. I just pushed >> https://github.com/jerith666/nixpkgs/commit/237a52ca24026f2e4d8a5543eb7aa98f610f642c >> to add it to my expression. However, it doesn't seem to have helped. :-( >> >> Looking at the source code, the "Error: CNCL_SetParam" is coming from >> ./cnijfilter/src/bjfilter.c line 661. The CNCL_SetParam() function is not >> defined in any of the provided source code, though -- rather, it looks like >> it's in ./328/libs_bin/libcnbpcnclapi328.so.3.3.0. >> >> I have a gdb trace laying around from last time I worked on this, and it >> has this stack trace: >> >> Catchpoint 1 (call to syscall open), 0xf7fd8da9 in __kernel_vsyscall () >> eax is -38 >> (gdb) where >> #0 0xf7fd8da9 in __kernel_vsyscall () >> #1 0xf7d65f23 in __open_nocancel () from >> /nix/store/bgmm5m6q04fl5myf831c73l1xmbl38xw-glibc-2.24/lib/libc.so.6 >> #2 0xf7cf9fd6 in __GI__IO_file_open () from >> /nix/store/bgmm5m6q04fl5myf831c73l1xmbl38xw-glibc-2.24/lib/libc.so.6 >> #3 0xf7cfa1d1 in __GI__IO_file_fopen () from >> /nix/store/bgmm5m6q04fl5myf831c73l1xmbl38xw-glibc-2.24/lib/libc.so.6 >> #4 0xf7cedd31 in __fopen_internal () from >> /nix/store/bgmm5m6q04fl5myf831c73l1xmbl38xw-glibc-2.24/lib/libc.so.6 >> #5 0xf7cedd9e in fopen@@GLIBC_2.1 () from >> /nix/store/bgmm5m6q04fl5myf831c73l1xmbl38xw-glibc-2.24/lib/libc.so.6 >> #6 0xf7fd1b08 in BJVSOpenFile () from >> /nix/store/9ci3apl3d8spw0zdp202cwr325n8hz28-cnijfilter-2.80/lib/libcnbpcmcm328.so >> #7 0xf7fcafa3 in CommandComp2Ext_Open () from >> /nix/store/9ci3apl3d8spw0zdp202cwr325n8hz28-cnijfilter-2.80/lib/libcnbpcmcm328.so >> #8 0xf7fce059 in CommandComp2 () from >> /nix/store/9ci3apl3d8spw0zdp202cwr325n8hz28-cnijfilter-2.80/lib/libcnbpcmcm328.so >> #9 0xf7e60d4d in CNCL_SetParam () from >> /nix/store/9ci3apl3d8spw0zdp202cwr325n8hz28-cnijfilter-2.80/lib/libcnbpcnclapi328.so >> #10 0x0804b3c8 in main () >> >> I think this means that it's trying to open some file and failing. My >> *guess* is that it's trying to open one of these files, but doesn't have the >> proper nix store path: >> >> $ file >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/* >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cifip3500.conf: >> ASCII text >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cifip4500.conf: >> ASCII text >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cifmp140.conf: >> ASCII text >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cifmp210.conf: >> ASCII text >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cifmp520.conf: >> ASCII text >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cifmp610.conf: >> ASCII text >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnb_3150.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnb_3160.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnb_3190.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnb_3260.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnb_3270.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnb_3280.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnbpname315.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnbpname316.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnbpname319.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnbpname326.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnbpname327.tbl: >> TrueType font data >> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib/cnbpname328.tbl: >> TrueType font data >> >> that's what my >> https://github.com/jerith666/nixpkgs/commit/446b9230fbde3c71e8a285180614c32cdb2cf051 >> "try using shorter libpath via /var/lib/cups" was trying to remedy, to let >> these libs be found via: >> >> $ ls -l /var/lib/cups/path/lib/bjlib >> lrwxrwxrwx 1 root root 69 Dec 31 1969 /var/lib/cups/path/lib/bjlib -> >> /nix/store/g1gdd81qh6dskjalg6icg56yw74rb03b-cnijfilter-2.80/lib/bjlib >> >> But, that doesn't seem to have worked ... or, I'm still barking up the >> wrong tree. >> >> Anyway, that's what I've got for tonight ... maybe more tomorrow ... I >> think the next step is to try to fire up gdb again and see *what* file it's >> trying to open down inside that call to CNCL_SetParam(). >> >> >> On Wed, Jun 21, 2017 at 7:47 AM, Matt McHenry <m...@mchenryfamily.org> >> wrote: >>> >>> The error doesn't show up in the cups log -- the only thing it says is >>> "Error: CNCL_SetParam" -- but to cups, the process it spawned seems to have >>> succeeded. See attached log. >>> >>> As I recall, the problem is that one of the executables that gets built >>> then tries to load one of binary libraries included in the tarball from >>> canon, and can't find it. I'll have to go refresh my memory some more, but >>> won't have time until this evening. >>> >>> I have not tried patchelf -- that may be a good lead. >>> >>> I don't think a FHS env will work, because as you say, the cups service >>> can't be run in there. >>> >>> On Wed, Jun 21, 2017 at 2:36 AM, Nawal Husnoo <na...@husnoo.com> wrote: >>>> >>>> Thanks for that Matt! >>>> >>>> I wonder if the versioning thing is a windows-related behaviour. >>>> >>>> Could you say a few words about the link errors you had? Have you used >>>> patchelf? >>>> >>>> > patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \ >>>> > --set-rpath $libPath:$out/lib \ >>>> > $out/bin/cngpijmonmp250 >>>> >>>> Another option I could live with is if we could create a buildFHSUserEnv >>>> - I tried it with the binary canon drivers, but it turned out it's cups >>>> that >>>> needs to be inside for the pesky things to be found, but then systemd >>>> wouldn't let me restart cups.service inside a user env... >>>> >>>> Cheers, >>>> >>>> Nawal. >>>> >>>> >>>> >>>> On 21 June 2017 at 01:49, Matt McHenry <m...@mchenryfamily.org> wrote: >>>>> >>>>> Hi Nawal, >>>>> >>>>> I see you've been trying to get canon's linux drivers working on nixos >>>>> [1][2][3]. I've also tried my hand at this. I think I've made more >>>>> progress than you, but was never able to get it working, and eventually >>>>> resigned myself to just printing with the gutenprint driver. I'd be >>>>> interested in continuing to hack at it as time permits, though. >>>>> >>>>> I got to the point of cups executing what I think is the correct chain >>>>> of filters, all built from the source that my nix expression pulls from >>>>> the >>>>> Canon Japan website. However, at least one of the filters is unable to >>>>> load >>>>> at least one dynamically linked library, so it fails. I don't know much >>>>> about shared libraries on linux in general or NixOS in particular, so I >>>>> was >>>>> mostly just thrashing around a lot. >>>>> >>>>> I've pushed what I have to the cnijfilter branch in my nixpkgs clone >>>>> [4]. To try it, just add pkgs.cnijfilter to services.printing.drivers in >>>>> configuration.nix. (I also tried adding cnijfilter to >>>>> environment.systemPackages, that didn't seem to help.) >>>>> >>>>> I've gleaned a lot from the other distros builds [5][6][7]. In >>>>> particular, the cnijfilter-common library does not follow a normal >>>>> versioning pattern -- each version supports a certain set of printers. So >>>>> you don't want the latest, you want whatever matches up with your printer. >>>>> (My printer is an MX-700, which uses the mp520 driver. So I've been >>>>> working >>>>> on version 2.80 of cnijfilter-common.) But my hope is that the overall >>>>> structure of the build would be very portable between versions. >>>>> >>>>> It looks like you've worked from the debian packages -- perhaps looking >>>>> in more detail at how they are built will give us some more clues? >>>>> >>>>> I'm not sure whether it makes more sense to open an issue to document >>>>> this work, or keep discussing on the mailing list. >>>>> >>>>> [1] >>>>> https://mailman.science.uu.nl/pipermail/nix-dev/2017-June/023942.html >>>>> [2] >>>>> https://mailman.science.uu.nl/pipermail/nix-dev/2017-June/023943.html >>>>> [3] >>>>> https://mailman.science.uu.nl/pipermail/nix-dev/2017-June/023946.html >>>>> >>>>> [4] https://github.com/jerith666/nixpkgs/tree/cnijfilter >>>>> >>>>> [5] https://bugs.gentoo.org/show_bug.cgi?id=130645 >>>>> [6] https://aur.archlinux.org/packages/cnijfilter-mp620/?comments=all >>>>> [7] https://github.com/spremi/cnijfilter-source-3.80 >>>> >>>> >>> >> > _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
