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Bug #1428

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Configuration doesn't catch missing -lnuma dependency

Bug #1428: Configuration doesn't catch missing -lnuma dependency

Added by Erica Bugden 4 months ago. Updated 4 months ago.

Status:
New
Priority:
Low
Assignee:
-
Target version:
-
Start date:
07/02/2025
Due date:
% Done:

0%

Estimated time:

Description

When compiling lttng-tools the build fails because of a missing dependency (-lnuma):

Making all in lttng-consumerd
make[3]: Entering directory '/home/erica/lttng-tools/src/bin/lttng-consumerd'
  CXXLD    lttng-consumerd
/usr/bin/ld: cannot find -lnuma: No such file or directory
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:657: lttng-consumerd] Error 1
make[3]: Leaving directory '/home/erica/lttng-tools/src/bin/lttng-consumerd'
make[2]: *** [Makefile:587: all-recursive] Error 1
make[2]: Leaving directory '/home/erica/lttng-tools/src/bin'
make[1]: *** [Makefile:580: all-recursive] Error 1
make[1]: Leaving directory '/home/erica/lttng-tools/src'
make: *** [Makefile:695: all-recursive] Error 1

This is unexpected since the configuration step was successful (which, based on my understanding, should have caught any missing dependencies).

Tools version

lttng-tools master branch from this commit:

7d5802d16 tests: Add path check to prevent incorrect redirection

plus these changes (patchset 52). So not an official release.

System information

Ubuntu 24.04.2 LTS

Linux 6.8.0-63-generic #66-Ubuntu SMP PREEMPT_DYNAMIC Fri Jun 13 20:25:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

Other context bits

Additional context that may or may not be useful.

  • lttng-ust and userspace-rcu are installed from source in `~/install-dir`
  • The `libnuma1` package is installed, but the missing dependency `libnuma-dev` is not. It is apparently unusual that configuration would succeed with `libnuma-dev` missing.

Files

config.log (198 KB) config.log From the completed configuration step Erica Bugden, 07/02/2025 10:58 AM

KS Updated by Kienan Stewart 4 months ago ยท Edited Actions
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 #1

I think the only way that `-lnuma` is added to any linker flags for libraries in lttng-tools is when the build of lttng-ust depends on `-lnuma`. There's no configure check for it in lttng-tools, as it's not used directly.

I'm curious how lttng-ust was built and depends on libnuma without libnuma-dev. Do you have any of the system packages installed? E.g., 

dpkg -l | lttng

Edit: And any traces in the /usr/lib, e.g. 

find /usr/lib -name '*lttng*'

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