[<prev] [next>] [day] [month] [year] [list]
Message-ID: <CA+G9fYt2PZd7Zj5ndPL+LBstGvoVwyCLpFucOY-7UNajvAqRLQ@mail.gmail.com>
Date: Mon, 21 Aug 2023 19:17:53 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: clang-built-linux <llvm@...ts.linux.dev>,
"open list:KERNEL SELFTEST FRAMEWORK"
<linux-kselftest@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>,
lkft-triage@...ts.linaro.org
Cc: Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Shuah Khan <shuah@...nel.org>,
Anders Roxell <anders.roxell@...aro.org>,
Arnd Bergmann <arnd@...db.de>
Subject: clang: error: cannot specify -o when generating multiple output files
Recently we have updated the toolchain clang-17 version.
While building selftests filesystems/binderfs, openat2, resctrl and x86
following warnings / errors noticed on the Linux next with clang-17.
But pass with gcc-13.
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
Build logs:
========
binderfs_test
clang: error: cannot specify -o when generating multiple output files
...
openat2/openat2_test
clang: error: cannot specify -o when generating multiple output files
...
resctrl/resctrl_tests
clang: error: cannot specify -o when generating multiple output files
...
make[4]: Entering directory 'tools/testing/selftests/x86'
clang --target=x86_64-linux-gnu -fintegrated-as
-Werror=unknown-warning-option -Werror=ignored-optimization-argument
-Werror=option-ignored -Werror=unused-command-line-argument
--target=x86_64-linux-gnu -fintegrated-as -m64 -o
/home/tuxbuild/.cache/tuxmake/builds/1/build/kselftest/x86/single_step_syscall_64
-O2 -g -std=gnu99 -pthread -Wall -isystem
/home/tuxbuild/.cache/tuxmake/builds/1/build/usr/include -no-pie
-DCAN_BUILD_64 single_step_syscall.c helpers.h -lrt -ldl
clang: error: cannot specify -o when generating multiple output files
make[4]: *** [Makefile:78:
/home/tuxbuild/.cache/tuxmake/builds/1/build/kselftest/x86/single_step_syscall_64]
Error 1
Links:
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2UHhSg0TPLhjp9Uq9EFceoQd0VL/
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230821/testrun/19213760/suite/kselftest-x86/test/shardfile-x86/details/
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230821/testrun/19213728/suite/kselftest-openat2/test/shardfile-openat2/details/
-
Steps to reproduce:
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2UHhSg0TPLhjp9Uq9EFceoQd0VL/tuxmake_reproducer.sh
tuxmake --runtime podman --target-arch x86_64 --toolchain clang-17
--kconfig https://storage.tuxsuite.com/public/linaro/lkft/builds/2UHhSg0TPLhjp9Uq9EFceoQd0VL/config
LLVM=1 LLVM_IAS=1 debugkernel cpupower headers kernel kselftest
modules
--
Linaro LKFT
https://lkft.linaro.org
Powered by blists - more mailing lists