test_maps in ubuntu_bpf test failed to build on s390x system

[Po-Hsu Lin]

With the Zesty source tree:

$ make
gcc -Wall -O2 -I../../../../usr/include test_verifier.c -o test_verifier
In file included from test_verifier.c:23:0:
/usr/include/linux/bpf_perf_event.h:14:17: error: field 'regs' has incomplete type
  struct pt_regs regs;
                 ^~~~
<builtin>: recipe for target 'test_verifier' failed
make: *** [test_verifier] Error 1

This issue can be reproduced on Artful tree and Linus' tree (commit ac9a40905) as well.

[Po-Hsu Lin (cypressyew)]

This issue is similar to bug 1675395, with different arch.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1711299

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Po-Hsu Lin (cypressyew)]

From upstream commits, there are some commits that make it looks like this test should be able to run on s390x:

bpf: fix selftest/bpf/test_pkt_md_access on s390x

[Po-Hsu Lin (cypressyew)]

Some on-going discussion found upstream:

http://<email address hidden>/msg1459347.html
http://<email address hidden>/msg1468498.html
http://<email address hidden>/msg1468604.html

[Po-Hsu Lin (cypressyew)]

On Bionic, the error message is different:

$ make
make[1]: Entering directory '/tmp/bionic/tools/testing/selftests/bpf'
make -C ../../../lib/bpf OUTPUT=/tmp/bionic/tools/testing/selftests/bpf/
make[2]: Entering directory '/tmp/bionic/tools/lib/bpf'
make[2]: Leaving directory '/tmp/bionic/tools/lib/bpf'
make -C ../../../lib/bpf OUTPUT=/tmp/bionic/tools/testing/selftests/bpf/
make[2]: Entering directory '/tmp/bionic/tools/lib/bpf'
make[2]: Leaving directory '/tmp/bionic/tools/lib/bpf'
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_verifier.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_verifier
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_tag.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_tag
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_maps.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_maps
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_lru_map.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_lru_map
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_lpm_map.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_lpm_map
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_progs.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_progs
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_align.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_align
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_verifier_log.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_verifier_log
gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../../include/generated -I../../../include test_dev_cgroup.c /tmp/bionic/tools/testing/selftests/bpf/libbpf.a /tmp/bionic/tools/testing/selftests/bpf/cgroup_helpers.c -lcap -lelf -lrt -o /tmp/bionic/tools/testing/selftests/bpf/test_dev_cgro...

[Andy Whitcroft (apw)]

This bug was nominated against a series that is no longer supported, ie artful. The bug task representing the artful nomination is being closed as Won't Fix.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Po-Hsu Lin (cypressyew)]

The build error found in Bionic:
libbpf: failed to open ./sockmap_parse_prog.o: No such file or directory

Has been fixed already.