Shared library referencing another | Zig Programming Language | Page 1

winged dune Dec 2, 2022, 7:12 AM

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I'm having an issue with a shared library referencing another even though i linked one with the other with linkLibrary.

dlopen(/Users/giann/git/buzz/dist/lib/libos.dylib, 0x0001): Library not loaded: '@rpath/libbuzz.dylib'
  Referenced from: '/Users/giann/git/buzz/dist/lib/libos.dylib'
  Reason: tried: 'dist/lib/libbuzz.dylib' (no such file), 'dist/lib/libbuzz.dylib' (no such file), '/usr/local/lib/libbuzz.dylib' (no such file), '/usr/lib/libbuzz.dylib' (no such file)

dist/lib is what I used to setOutputDir of the lib. Is there a way to add/modify paths for dlopen to search in? Something link /usr/local/lib/buzz/... at least?

Here the full build.zig: https://github.com/buzz-language/buzz/blob/main/build.zig

GitHub

buzz/build.zig at main · buzz-language/buzz

👨‍🚀 buzz, A small/lightweight typed scripting language (in development) - buzz/build.zig at main · buzz-language/buzz

dire basin Dec 2, 2022, 7:20 AM

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The build package does have a LibExeObjStep.addRPath() method, have you tried that?

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There's also addLibraryPath() but I assume you might want the former given your output

winged dune Dec 2, 2022, 7:23 AM

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Testing out addRPath thx

Also just updated zig, and now I get this: import of file outside package path: '../src/memory.zig' for one of the shared libraries even though i have std_lib.setMainPkgPath(".") which always worked up until now

dire basin Dec 2, 2022, 7:25 AM

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Let me peep your code, but first thought is you might need to define a new zig package in build.zig. Then you can do @import("my-package") instead of @import("../../relative/path.zig")

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What version of zig are you using? I might need to update to reproduce the issue

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(I'll update to latest nightly)

winged dune Dec 2, 2022, 7:30 AM

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0.11.0-dev.426+fc3142aa9

dire basin Dec 2, 2022, 7:37 AM

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Hm, I get a compile error related to the recent allocator interface change, in the zig-clap module. What command are you running to build?

winged dune Dec 2, 2022, 7:40 AM

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You can go in src/ext/clap and git pull origin master for that they updated their work

dire basin Dec 2, 2022, 7:42 AM

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Done:

From https://github.com/Hejsil/zig-clap
 * branch            master     -> FETCH_HEAD
Updating 4f4196f..a1b01ff

But a different error:

./src/obj.zig:299:39: error: container '.cimport:3:18' has no member called 'struct_real_pcre'
    .linux, .freebsd, .openbsd => pcre.struct_real_pcre,
                                      ^

winged dune Dec 2, 2022, 7:42 AM

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Yes that’s related to pcre version

dire basin Dec 2, 2022, 7:42 AM

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Sorry, you're debugging me debugging you

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That's not another submodule, yeah? I only see the one in .gitmodules

winged dune Dec 2, 2022, 7:43 AM

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What version of pcre do you have? You can try changing the struct name to struct_pcre

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No pcre is searched in your system

dire basin Dec 2, 2022, 7:43 AM

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Ahhhh. Let me check

winged dune Dec 2, 2022, 7:43 AM

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Since its almost always there

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Not sure i’ll keep that dependency though

dire basin Dec 2, 2022, 7:44 AM

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8.45-3 on arch core/pcre

winged dune Dec 2, 2022, 7:44 AM

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Btw addRPath solves my earlier issue

winged dune Dec 2, 2022, 7:45 AM

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dire basin 8.45-3 on arch core/pcre

Search for pcre.h and try tou find the actual struc name

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Easier than installing older version of pcre

dire basin Dec 2, 2022, 7:50 AM

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Bingo, it was real_pcre8_or_16 on my system. Updated and reproduced your import issue

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So I'm not sure how this worked for you before, I thought this was the case for a while, but: Normally, if you want to import a file, it can't be above the parent of the package's root file.
In your case, the root of the debug package is lib/buzz_debug.zig. It's trying to import from src/memory.zig -- what version were you using prior? Pre-0.10.0?

winged dune Dec 2, 2022, 7:54 AM

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No 0.10.0

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0.10.0-dev.4587+710e2e7f1 actually

dire basin Dec 2, 2022, 7:55 AM

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Ok, I might be misremembering. I'll take another look to see if there's a simple answer here

winged dune Dec 2, 2022, 7:55 AM

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But my ci builds against zig master so it must be because of a recent zig change

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exe.setMainPkgPath(".") fixed that issue before

dire basin Dec 2, 2022, 7:57 AM

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~~Oh boy this is a stage1 error~~

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Actually, maybe not. Recent issue opened: https://github.com/ziglang/zig/issues/13665

GitHub

`@import("myfile.zig")` has stopped working when using `zig build-o...

Zig Version 0.11.0-dev.334+2df47df39 Steps to Reproduce and Observed Behavior [master] tiberius▸ zig build-obj z0.zig z0.zig:4:35: error: import of file outside package path: 'z1.zig&#3...

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I'll look more, that may not be conclusive evidence

west meteor Dec 2, 2022, 8:09 AM

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dire basin Actually, maybe not. Recent issue opened: https://github.com/ziglang/zig/issues/...

uff, this looks like Zig needs more cli tests for these things not to regress.

dire basin Dec 2, 2022, 8:10 AM

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I'm wondering if something fucked up happened here https://github.com/ziglang/zig/pull/13652
I installed zig fresh and the path resolution was broken unless I put lib as a sibling to the zig binary, which was not an issue before

west meteor Dec 2, 2022, 8:11 AM

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Probably. Without tests I can't tell what are expectations vs conventions.

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I guess making things abit more stricter for path resolving doesnt sound too aweful though.

dire basin Dec 2, 2022, 8:16 AM

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Smells like a nasty bug. I'll try to create a reproduction snippet and open an issue if there isn't one that's directly related

#Shared library referencing another