You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@camel.apache.org by GitBox <gi...@apache.org> on 2021/03/17 10:59:31 UTC
[GitHub] [camel-k] orpiske commented on pull request #2141: fix: disable CGO when building on Fedora to avoid linking issues on the Ubuntu-based image (#2140)
orpiske commented on pull request #2141:
URL: https://github.com/apache/camel-k/pull/2141#issuecomment-800990117
> Cool, do we need CGO in non-fedora?
>
> Btw, the released `kamel` is usually built on my Fedora laptop (never at latest version)
I believe this might be a problem when/if we start building Camel K on any system that uses glibc 2.32 or newer. The reason is that on 2.32 [they moved some of the pthread_*sigmask](https://sourceware.org/pipermail/libc-announce/2020/000029.html) symbols [from libpthread to libc](https://sourceware.org/pipermail/glibc-cvs/2020q2/069412.html). Therefore any binary built against 2.32, that uses pthread_* symbols won't work on older versions. The opposite is not true, though.
This is the kamel released:
```
objdump -T kamel | grep pthread
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_mutex_lock
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.3.2 pthread_cond_wait
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_mutex_unlock
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.3.2 pthread_cond_broadcast
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_create
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_detach
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_attr_init
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_attr_getstacksize
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_attr_destroy
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_sigmask
```
This is the one built on Fedora 32 (:
```
objdump -T kamel| grep pthread
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_mutex_lock
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.3.2 pthread_cond_wait
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_mutex_unlock
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.3.2 pthread_cond_broadcast
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_create
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_detach
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_attr_init
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_attr_getstacksize
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.2.5 pthread_attr_destroy
0000000000000000 DO *UND* 0000000000000000 GLIBC_2.32 pthread_sigmask
```
So, I am guessing it may be a problem on any/most of the distros where the ABI is incompatible so crossing these version boundaries may be problematic.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
users@infra.apache.org