[linux-lvm] Does LVM2 support building with LTO enablement?
Gang He
ghe at suse.com
Tue May 14 06:25:50 UTC 2019
Hello Guys,
Anybody touched this area?
Thanks
Gang
>>> On 2019/5/10 at 11:00, in message
<5CD4E950020000F900064DCE at prv1-mh.provo.novell.com>, "Gang He" <ghe at suse.com>
wrote:
> Hello List,
>
> Our build team wants to build LVM2 with LTO enablement, but looks failed.
> The error message likes,
>
> [ 30s] gcc -fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2
> -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables
> -fstack-clash-protection -flto=160 -g -fPIC -L../libdm -L../lib
> -L../libdaemon/client -L../daemons/dmeventd -Wl,-z,relro,-z,now -pie -fPIE
> -Wl,--export-dynamic -o lvm command.o dumpconfig.o formats.o lvchange.o
> lvconvert.o lvconvert_poll.o lvcreate.o lvdisplay.o lvextend.o lvmcmdline.o
> lvmdiskscan.o lvreduce.o lvremove.o lvrename.o lvresize.o lvscan.o
> polldaemon.o pvchange.o pvck.o pvcreate.o pvdisplay.o pvmove.o pvmove_poll.o
> pvremove.o pvresize.o pvscan.o reporter.o segtypes.o tags.o toollib.o
> vgcfgbackup.o vgcfgrestore.o vgchange.o vgck.o vgcreate.o vgconvert.o
> vgdisplay.o vgexport.o vgextend.o vgimport.o vgmerge.o vgmknodes.o lvpoll.o
> vgimportclone.o vgreduce.o vgremove.o vgrename.o vgscan.o vgsplit.o lvm.o \
> [ 30s] -llvm-internal -ldevmapper-event -ldaemonclient -ludev -ldl -lblkid
> -ldevmapper -laio -lreadline
> [ 30s]
> /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld:
> /tmp/lvm.vKOJS8.ltrans0.ltrans.o: in function `_async_wait':
> [ 30s]
> /home/abuild/rpmbuild/BUILD/LVM2.2.02.180/tools/device/bcache.c:268:
> undefined reference to `io_getevents'
> [ 30s]
> /usr/lib64/gcc/x86_64-suse-linux/9/../../../../x86_64-suse-linux/bin/ld:
> /usr/lib64/gcc/x86_64-suse-linux/9/../../../../lib64/libaio.so: undefined
> reference to `io_cancel'
> [ 30s] collect2: error: ld returned 1 exit status
> [ 30s] make[1]: *** [Makefile:143: lvm] Error 1
> [ 30s] make[1]: Leaving directory
> '/home/abuild/rpmbuild/BUILD/LVM2.2.02.180/tools'
> [ 30s] make[1]: *** Waiting for unfinished jobs....
> [ 30s] make[1]: Entering directory
> '/home/abuild/rpmbuild/BUILD/LVM2.2.02.180/tools'
> [ 30s] [CC] liblvm2cmd.so
>
> About LTO information, you can look at the links as below,
> https://lists.opensuse.org/opensuse-factory/2019-04/msg00320.html
> https://en.opensuse.org/openSUSE:LTO
>
>
> Thanks
> Gang
>
>
>
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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
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