Bug 809395 – x11-base/xorg-server-1.20.13-r1 sdksyms.c:494:15: error: expected expression before ‘__attribute__’

• Product: Gentoo Linux
• Status: RESOLVED INVALID

[Description Bui Xuan Dien 2021-08-21 12:03:35 UTC]

I try to upgrade the system with
'emerge --verbose --update --deep --changed-use @world'
When building package x11-base/xorg-server-1.20.13-r1

sdksyms.c:494:15: error: expected expression before ‘__attribute__’
  494 |     (void *) &__attribute__


I did not find any information regarding this error. Hope to help. Thanks!

[Comment 1 Bui Xuan Dien 2021-08-21 12:04:49 UTC]

Created attachment 734878 [details]
emerge --info

[Comment 2 Bui Xuan Dien 2021-08-21 12:07:48 UTC]

Created attachment 734881 [details]
build log

[Comment 3 Mike Gilbert 2021-08-21 19:39:09 UTC]

Please attach the full build log.

[Comment 4 Bui Xuan Dien 2021-08-22 00:38:22 UTC]

Created attachment 734974 [details]
xorg-server-1.20.13-r1 build log

[Comment 5 Bui Xuan Dien 2021-08-22 00:46:45 UTC]

I don't think this is a syntax related error. as it happens the same with ebuild xorg-server version 1.20.11, 1.20.12 I found some information related to gcc5 but I am using gcc 10.3.0 . Maybe my system built the wrong flag. Thanks

[Comment 6 Bui Xuan Dien 2021-08-27 03:31:54 UTC]

Now emerge successfully after emerge --sync, add FEATURES="-userpriv", add "threads" flag to make.config flag

[Comment 7 Piotr Karbowski (RETIRED) 2021-08-29 09:30:14 UTC]

Can you reproduce the problem if you build with default enabled userpriv? Also, what does 'ls -l /bin/sh' gives you?

[Comment 8 Bui Xuan Dien 2021-08-29 14:04:12 UTC]

Yes I just enabled userpriv can't build. 
$ ls -l /bin/sh
lrwxrwxrwx 1 root root 4 Feb 21  2021 /bin/sh -> bash

[Comment 9 Piotr Karbowski (RETIRED) 2021-08-29 17:19:17 UTC]

Sounds like some silent permissions problems. Get yourself dev-util/sysdig, load kernel module and in another shell, as root run:

    sysdig "user.name = 'portage' and (evt.res = EACCES or evt.res = EPERM)"

Then in yet another shell try to build xorg-server with userpriv and see what paths are yielding permissions problems.

[Comment 10 Bui Xuan Dien 2021-08-30 01:55:09 UTC]

Wow that's amazing! I found the path that was causing the error. But I don't quite understand the current permission. Apparently the path that caused the error was still working fine before for a long time.

readlink (48079) < openat fd=-13(EACCES) dirfd=5(<f>/mnt/tmp_build/portage) name=..(/mnt/tmp_build) flags=1(O_RDONLY) mode=0 dev=0

An error occurred in the build directory attached to the hard drive.
$ ls -l /mnt/tmp_build
4 drwx--x--x 13 root root 4096 Jun 24 13:49 tmp_build

I have chmod 777 /mnt/tmp_build and successfully bulid xorg-server