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[Bug 2034483] [NEW] ubuntu_bpf failed to build with F-hwe-5.15

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <2034483@xxxxxxxxxxxxxxxxxx>
Date: Wed, 06 Sep 2023 03:53:06 -0000
Reply-to: Bug 2034483 <2034483@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Public bug reported:

Issue found with 5.15.0-83.92~20.04.1

This is not a regression as we didn't test ubuntu_bpf on this kernel
before.

Test build failed with:
    CLNG-BPF [test_maps] test_global_func13.o
    CLNG-BPF [test_maps] test_cls_redirect_subprogs.o
    CLNG-BPF [test_maps] test_overhead.o
    CLNG-BPF [test_maps] timer_mim.o
  make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf'
  make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests'
  stderr:
  Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'
  Warning: Kernel ABI header at 'tools/include/uapi/linux/netlink.h' differs from latest version at 'include/uapi/linux/netlink.h'
  Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'
  In file included from progs/timer_mim.c:7:
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:24:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:37:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:41:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:52:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:56:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:84:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:133:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:149:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
  } __attribute__((preserve_access_index));
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:208:11: error: use of unknown builtin '__builtin_preserve_field_info' [-Wimplicit-function-declaration]
          return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited);
                   ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_core_read.h:88:36: note: expanded from macro 'BPF_CORE_READ_BITFIELD'
          const void *p = (const void *)s + __CORE_RELO(s, field, BYTE_OFFSET); \
                                            ^
  /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_core_read.h:41:2: note: expanded from macro '__CORE_RELO'
          __builtin_preserve_field_info((src)->field, BPF_FIELD_##info)
          ^
  8 warnings and 1 error generated.
  make[1]: *** [Makefile:470: /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/timer_mim.o] Error 1
  make: *** [Makefile:171: all] Error 2

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New


** Tags: 5.15 focal sru-20230807 ubuntu-bpf

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https://bugs.launchpad.net/bugs/2034483

Title:
  ubuntu_bpf failed to build with F-hwe-5.15

Status in ubuntu-kernel-tests:
  New

Bug description:
  Issue found with 5.15.0-83.92~20.04.1

  This is not a regression as we didn't test ubuntu_bpf on this kernel
  before.

  Test build failed with:
      CLNG-BPF [test_maps] test_global_func13.o
      CLNG-BPF [test_maps] test_cls_redirect_subprogs.o
      CLNG-BPF [test_maps] test_overhead.o
      CLNG-BPF [test_maps] timer_mim.o
    make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf'
    make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests'
    stderr:
    Warning: Kernel ABI header at 'tools/include/uapi/linux/bpf.h' differs from latest version at 'include/uapi/linux/bpf.h'
    Warning: Kernel ABI header at 'tools/include/uapi/linux/netlink.h' differs from latest version at 'include/uapi/linux/netlink.h'
    Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'
    In file included from progs/timer_mim.c:7:
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:24:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:37:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:41:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:52:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:56:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:84:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:133:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:149:18: warning: unknown attribute 'preserve_access_index' ignored [-Wunknown-attributes]
    } __attribute__((preserve_access_index));
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/bpf_tcp_helpers.h:208:11: error: use of unknown builtin '__builtin_preserve_field_info' [-Wimplicit-function-declaration]
            return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited);
                     ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_core_read.h:88:36: note: expanded from macro 'BPF_CORE_READ_BITFIELD'
            const void *p = (const void *)s + __CORE_RELO(s, field, BYTE_OFFSET); \
                                              ^
    /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_core_read.h:41:2: note: expanded from macro '__CORE_RELO'
            __builtin_preserve_field_info((src)->field, BPF_FIELD_##info)
            ^
    8 warnings and 1 error generated.
    make[1]: *** [Makefile:470: /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/timer_mim.o] Error 1
    make: *** [Makefile:171: all] Error 2

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Follow ups

[Bug 2034483] Re: ubuntu_bpf failed to build with F-hwe-5.15
From: Po-Hsu Lin, 2023-09-08
[Bug 2034483] Re: ubuntu_bpf failed to build with F-hwe-5.15
From: Po-Hsu Lin, 2023-09-08
[Bug 2034483] Re: ubuntu_bpf failed to build with F-hwe-5.15
From: Po-Hsu Lin, 2023-09-06