gcc：错误：无法识别的命令行选项“-mrecord-mcount”

Question

CentOS 7，内核 5.12.8-1.el7.elrepo.x86_64，VirtualBox 6.1

我要执行这个命令：

sudo /sbin/vboxconfig

但我得到错误：

vboxdrv.sh: Stopping VirtualBox services.
vboxdrv.sh: Starting VirtualBox services.
vboxdrv.sh: Building VirtualBox kernel modules.
vboxdrv.sh: failed: Look at /var/log/vbox-setup.log to find out what went wrong.

There were problems setting up VirtualBox.  To re-start the set-up process, run
  /sbin/vboxconfig
as root.  If your system is using EFI Secure Boot you may need to sign the
kernel modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) before you can load
them. Please see your Linux system's documentation for more information.

这里是文件vbox-setup.log

的内容

Building the main VirtualBox module.
Error building the module:
make V=1 CONFIG_MODULE_SIG= CONFIG_MODULE_SIG_ALL= -C /lib/modules/5.12.8-1.el7.elrepo.x86_64/build M=/tmp/vbox.0 SRCROOT=/tmp/vbox.0 -j12 modules
make[1]: warning: -jN forced in submake: disabling jobserver mode.
make -C /usr/src/kernels/5.12.8-1.el7.elrepo.x86_64 -f /usr/src/kernels/5.12.8-1.el7.elrepo.x86_64/Makefile modules
make -f ./scripts/Makefile.build obj=/tmp/vbox.0 \
single-build= \
need-builtin=1 need-modorder=1
  gcc -Wp,-MMD,/tmp/vbox.0/linux/.SUPDrv-linux.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.8.5/include -I./arch/x86/include -I./arch/x86/include/generated  -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Wno-format-security -std=gnu89 -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mtune=generic -mno-red-zone -mcmodel=kernel -Wno-sign-compare -fno-asynchronous-unwind-tables -mindirect-branch=thunk-extern -mindirect-branch-register -fno-jump-tables -fno-delete-null-pointer-checks -O2 --param=allow-store-data-races=0 -Wframe-larger-than=2048 -fstack-protector-strong -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -mrecord-mcount -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -fno-strict-overflow -fno-stack-check -Werror=date-time -include /tmp/vbox.0/include/VBox/SUPDrvMangling.h -fno-omit-frame-pointer -fno-pie -Wno-declaration-after-statement -I./include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING -DSUPDRV_WITH_RELEASE_LOGGER -DVBOX_WITHOUT_EFLAGS_AC_SET_IN_VBOXDRV -DIPRT_WITHOUT_EFLAGS_AC_PRESERVING -DVBOX_WITH_64_BITS_GUESTS -DCONFIG_VBOXDRV_AS_MISC -DRT_ARCH_AMD64  -DMODULE  -DKBUILD_BASENAME='"SUPDrv_linux"' -DKBUILD_MODNAME='"vboxdrv"' -D__KBUILD_MODNAME=kmod_vboxdrv -c -o /tmp/vbox.0/linux/SUPDrv-linux.o /tmp/vbox.0/linux/SUPDrv-linux.c
gcc: error: unrecognized command line option ‘-mrecord-mcount’
  gcc -Wp,-MMD,/tmp/vbox.0/.SUPDrv.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/4.8.5/include -I./arch/x86/include -I./arch/x86/include/generated  -I./include -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Wno-format-security -std=gnu89 -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64 -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387 -mpreferred-stack-boundary=3 -mtune=generic -mno-red-zone -mcmodel=kernel -Wno-sign-compare -fno-asynchronous-unwind-tables -mindirect-branch=thunk-extern -mindirect-branch-register -fno-jump-tables -fno-delete-null-pointer-checks -O2 --param=allow-store-data-races=0 -Wframe-larger-than=2048 -fstack-protector-strong -Wno-unused-but-set-variable -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -pg -mrecord-mcount -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement -Wvla -Wno-pointer-sign -fno-strict-overflow -fno-stack-check -Werror=date-time -include /tmp/vbox.0/include/VBox/SUPDrvMangling.h -fno-omit-frame-pointer -fno-pie -Wno-declaration-after-statement -I./include -I/tmp/vbox.0/ -I/tmp/vbox.0/include -I/tmp/vbox.0/r0drv/linux -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING -DSUPDRV_WITH_RELEASE_LOGGER -DVBOX_WITHOUT_EFLAGS_AC_SET_IN_VBOXDRV -DIPRT_WITHOUT_EFLAGS_AC_PRESERVING -DVBOX_WITH_64_BITS_GUESTS -DCONFIG_VBOXDRV_AS_MISC -DRT_ARCH_AMD64  -DMODULE  -DKBUILD_BASENAME='"SUPDrv"' -DKBUILD_MODNAME='"vboxdrv"' -D__KBUILD_MODNAME=kmod_vboxdrv -c -o /tmp/vbox.0/SUPDrv.o /tmp/vbox.0/SUPDrv.c
make[3]: *** [/tmp/vbox.0/linux/SUPDrv-linux.o] Error 1
make[3]: *** Waiting for unfinished jobs....
gcc: error: unrecognized command line option ‘-mrecord-mcount’
make[3]: *** [/tmp/vbox.0/SUPDrv.o] Error 1
make[2]: *** [/tmp/vbox.0] Error 2
make[1]: *** [__sub-make] Error 2
make: *** [vboxdrv] Error 2

Answer 1

CentOS 7 附带 gcc 4.8.5 并且更新的 ELrepo 内核需要更新的 gcc 来编译模块。所以需要安装devtoolset。

# yum -y install centos-release-scl
# yum -y install devtoolset-9

之后，通过将devtoolset-9 env 添加到文件顶部来修补/usr/share/virtualbox/src/vboxhost/build_in_tmp，方法是复制/opt/rh/devtoolset-9/enable 的内容或手动添加以下内容：

export INFOPATH=/opt/rh/devtoolset-9/root/usr/share/info
export LD_LIBRARY_PATH=/opt/rh/devtoolset-9/root/usr/lib64:/opt/rh/devtoolset-9/root/usr/lib:/opt/rh/devtoolset-9/root/usr/lib64/dyninst:/opt/rh/devtoolset-9/root/usr/lib/dyninst:/opt/rh/devtoolset-9/root/usr/lib64:/opt/rh/devtoolset-9/root/usr/lib
export PATH=/opt/rh/devtoolset-9/root/usr/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/opt/puppetlabs/bin:/root/bin
export PCP_DIR=/opt/rh/devtoolset-9/root
export PKG_CONFIG_PATH=/opt/rh/devtoolset-9/root/usr/lib64/pkgconfig
export SHLVL=4
export X_SCLS=devtoolset-9

之后，运行：

# /sbin/vboxconfig
# systemctl enable --now vboxdrv

你就完成了！