https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249951
Bug ID: 249951
Summary: installworld results bad symbolic links to libraries
and non-root users get link error like -lgcc_s
Product: Base System
Version: 11.3-RELEASE
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: o...@j.email.ne.jp
After running installworld, non-root users cannot properly read symbolic links
from /usr/lib and causing link error like not finding -lgcc_s library.
Root user can link a program without a problem while all others fails to link.
I have / and /usr separate mount points.
After each installworld, I need to run the following to adjust symbolic links:
cd /usr/lib
ls -l *.so | nawk '$NF ~ /..\/..\/lib/{cmd="ln -sf " substr($NF, 6) " "
$(NF-2);system(cmd)}'
These are the commands to expose errors and comparison between a root user and
non-root user.
% is command as my own user account.
$ is the root user.
% uname -a
FreeBSD XXX 12.2-BETA2 FreeBSD 12.2-BETA2 #348 r365986M: Sat Sep 19 14:36:23
EDT 2020 hiro@XXX:/usr/obj/usr/src/i386.i386/sys/ZFS i386
% cd /tmp
% cat main.c
int main()
{
return 0;
}
% cc main.c
ld: error: unable to find library -lgcc_s
ld: error: unable to find library -lgcc_s
cc: error: linker command failed with exit code 1 (use -v to see invocation)
% c++ main.c
c++: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is
deprecated [-Wdeprecated]
ld: error: cannot open /usr/lib/libcxxrt.so: Permission denied
ld: error: unable to find library -lgcc_s
ld: error: unable to find library -lgcc_s
c++: error: linker command failed with exit code 1 (use -v to see invocation)
% ls -lsd /usr/lib/libcxxrt.so
0 lrwxr-xr-x 1 root wheel 23 Sep 21 23:27 /usr/lib/libcxxrt.so ->
../../lib/libcxxrt.so.1
% ls -lsd /lib/libcxxrt.so.1
90 -r--r--r-- 1 root wheel 90644 Sep 21 23:27 /lib/libcxxrt.so.1
% mount
/dev/ada0s4a on / (ufs, local, soft-updates)
devfs on /dev (devfs, local, multilabel)
/dev/ada0s4d on /usr (ufs, local, noatime, soft-updates)
/dev/ada0s4e on /usr/local (ufs, local, noatime, soft-updates)
$ cc main.c
$ ./a.out
$
I had run the re-link program from comment above.
% ls -lsd /usr/lib/libcxxrt.so /lib/libcxxrt.so.1
90 -r--r--r-- 1 root wheel 90644 Sep 21 23:27 /lib/libcxxrt.so.1
0 lrwxr-xr-x 1 root wheel 23 Sep 21 23:27 /usr/lib/libcxxrt.so ->
../../lib/libcxxrt.so.1
% ls -lsd /usr/lib/libcxxrt.so /lib/libcxxrt.so.1
90 -r--r--r-- 1 root wheel 90644 Sep 21 23:27 /lib/libcxxrt.so.1
0 lrwxr-xr-x 1 root wheel 18 Sep 22 22:58 /usr/lib/libcxxrt.so ->
/lib/libcxxrt.so.1
% cc main.c
% ./a.out
%
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