linux-kernel - clang-12: tun: Unknown symbol _GLOBAL_OFFSET_TABLE

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Message-ID: <CA+G9fYuE4ELVDju=LESHnphL4Z2DT5YQjdh9rNgr5D1x5gZxgg@mail.gmail.com>
Date:   Tue, 23 Feb 2021 01:01:16 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     clang-built-linux <clang-built-linux@...glegroups.com>,
        open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org, X86 ML <x86@...nel.org>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Nathan Chancellor <nathan@...nel.org>
Subject: clang-12: tun: Unknown symbol _GLOBAL_OFFSET_TABLE_ (err -2)

Following test regressions reported after upgrade to clang-12 from clang-10.
Regression detected on Linux mainline and stable-rc 5.4, 5.10 and 5.11.

qemu-x86_64-clang-12 failed test cases,
  ltp-containers-tests:
    * netns_breakns_ip_ipv4_ioctl
    * netns_breakns_ip_ipv4_netlink
    * netns_breakns_ip_ipv6_ioctl
    * netns_breakns_ip_ipv6_netlink
    * netns_breakns_ns_exec_ipv4_ioctl
    * netns_breakns_ns_exec_ipv4_netlink
    * netns_breakns_ns_exec_ipv6_ioctl
    * netns_breakns_ns_exec_ipv6_netlink
    * netns_comm_ip_ipv4_ioctl
    * netns_comm_ip_ipv4_netlink
    * netns_comm_ip_ipv6_ioctl
    * netns_comm_ip_ipv6_netlink
    * netns_comm_ns_exec_ipv4_ioctl
    * netns_comm_ns_exec_ipv4_netlink
    * netns_comm_ns_exec_ipv6_ioctl
    * netns_comm_ns_exec_ipv6_netlink
    * netns_netlink

Test error log:
--------------
[   19.017163] tun: Unknown symbol _GLOBAL_OFFSET_TABLE_ (err -2)
open: No such device
netns_netlink    1  TBROK  :  netns_netlink.c:143: system() failed
netns_netlink    2  TBROK  :  netns_netlink.c:143: Remaining cases broken
netns_breakns 1 TINFO: timeout per run is 0h 15m 0s
[   19.070922] veth: Unknown symbol _GLOBAL_OFFSET_TABLE_ (err -2)
[   19.095171] veth: Unknown symbol _GLOBAL_OFFSET_TABLE_ (err -2)
Error: Unknown device type.[   19.101364] ip (751) used greatest stack
depth: 12088 bytes left

netns_breakns 1 TBROK: unable to create veth pair devices
Cannot find device \"veth0\"

Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>

Full test error log link,
-------------------------
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.11.y/build/v5.11-13-g6380656c9227/testrun/4002283/suite/ltp-containers-tests/test/netns_breakns_ip_ipv4_ioctl/log
https://qa-reports.linaro.org/lkft/linux-mainline-master/build/v5.11-2899-g2c405d1ab8b3/testrun/3994442/suite/ltp-containers-tests/test/netns_breakns_ip_ipv4_ioctl/log

-- 
Linaro LKFT
https://lkft.linaro.org