linux-kernel - arm-linux-gnueabihf-ld: kernel/rcu/update.o:update.c:(.text+0x1cc4): more undefined references to `__bad

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Date: Thu, 30 May 2024 17:50:52 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, 
	Linux ARM <linux-arm-kernel@...ts.infradead.org>, lkft-triage@...ts.linaro.org, 
	Linux Regressions <regressions@...ts.linux.dev>, rcu <rcu@...r.kernel.org>
Cc: Arnd Bergmann <arnd@...db.de>, Dan Carpenter <dan.carpenter@...aro.org>, 
	"Paul E. McKenney" <paulmck@...nel.org>, Joel Fernandes <joel@...lfernandes.org>, eeraj.upadhyay@...nel.org, 
	John Ogness <john.ogness@...utronix.de>
Subject: arm-linux-gnueabihf-ld: kernel/rcu/update.o:update.c:(.text+0x1cc4):
 more undefined references to `__bad_cmpxchg' follow

The arm builds failed on Linux next with gcc-13 and clang-18.

Config: arm imx_v6_v7_defconfig - failed

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

Build log:
-----
arm-linux-gnueabihf-ld: kernel/rcu/update.o: in function
`rcu_trc_cmpxchg_need_qs':
update.c:(.text+0x348): undefined reference to `__bad_cmpxchg'
arm-linux-gnueabihf-ld: kernel/rcu/update.o: in function
`rcu_read_unlock_trace_special':
update.c:(.text+0x41c): undefined reference to `__bad_cmpxchg'
arm-linux-gnueabihf-ld: kernel/rcu/update.o: in function
`trc_read_check_handler':
update.c:(.text+0x4b0): undefined reference to `__bad_cmpxchg'
arm-linux-gnueabihf-ld: kernel/rcu/update.o: in function `trc_inspect_reader':
update.c:(.text+0x1518): undefined reference to `__bad_cmpxchg'
arm-linux-gnueabihf-ld: update.c:(.text+0x1548): undefined reference
to `__bad_cmpxchg'
arm-linux-gnueabihf-ld: kernel/rcu/update.o:update.c:(.text+0x1cc4):
more undefined references to `__bad_cmpxchg' follow
make[3]: *** [/builds/linux/scripts/Makefile.vmlinux:34: vmlinux] Error 1

metadata:
  git_describe: next-20240529
  git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
  git_short_log: 9d99040b1bc8 ("Add linux-next specific files for 20240529")
  job_url: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/builds/2h944W0LTbtfMPlDNiOq17hXpQ8

Links:
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240529/testrun/24129266/suite/build/test/gcc-13-imx_v6_v7_defconfig/history/
 - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240529/testrun/24129266/suite/build/test/gcc-13-imx_v6_v7_defconfig/log


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