John W. O'Brien wrote on 2023/11/11 11:25:
> On 11/10/23 16:26, Tatsuki Makino wrote:
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261550
>
> I can reproduce the example you cite in comment 8, and yet "-d" and "-B"
> output cover disjoint packages on this system.
> That is, it seems like bug 261550 is about shlibs that are provided by base
> ending up being recorded in the local package database as if they are
> provided by packages. Something about how the llvm15 package is produced
> and/or how its metadata is ingested into the local package database results
> in required/provided data that is invalid.
> That is, it seems like the tcpdump anomaly is fundamentally different than
> the llvm15 example from bug 261550.
I checked.
This is a different problem than bug 261550.
And it is presumed that this does not occur at 15?-CURRENT.
My 12.x-STABLE still has the cause of this problem.
Here is how I looked into it.
cd /tmp/
echo 'int main() { return 0; }' > /tmp/test.c
clang -shared -Wl,--soname,libaaaaa.so -o /tmp/libaaaaa.so /tmp/test.c
clang /tmp/test.c -L/tmp -laaaaa
truss -o /tmp/truss.log ./a.out
grep -e ^openat.\*libaaaaa /tmp/truss.log
The result of the last grep is the following.
openat(AT_FDCWD,"/lib/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00) ERR#2 'No
such file or directory'
openat(AT_FDCWD,"/usr/lib/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00) ERR#2
'No such file or directory'
openat(AT_FDCWD,"/usr/lib/compat/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00)
ERR#2 'No such file or directory'
openat(AT_FDCWD,"/usr/local/lib/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00)
ERR#2 'No such file or directory'
openat(AT_FDCWD,"/usr/local/lib/compat/pkg/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00)
ERR#2 'No such file or directory'
openat(AT_FDCWD,"/lib/casper/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00) ERR#2
'No such file or directory'
openat(AT_FDCWD,"/lib/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00) ERR#2 'No
such file or directory'
openat(AT_FDCWD,"/usr/lib/libaaaaa.so",O_RDONLY|O_CLOEXEC|O_VERIFY,00) ERR#2
'No such file or directory'
I can understand it because it is related to ldconfig up to
/usr/local/lib/compat/pkg, but then it jumps to /lib/casper.
This is due to the following.
https://cgit.freebsd.org/src/tree/libexec/rtld-elf/paths.h?h=stable/12#n59
This allows tcpdump to load libcap_dns.so.2.
However, pkg does not seem to treat that directory as a base library directory.
It is presumed that the main branch will not have this problem because it has
already been moved from /lib/casper to /lib.
> Would freebsd-pkg@ be a better forum for this discussion?
I do not subscribe, so please take this :)
Regards.
