Gluster and GCC 5.1

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Hi All,

Recently I installed Fedora 22 on some fresh vms, which comes with gcc 5.1.1-1(which can be upgraded to 5.1.1-4)
Observed one thing that normal "inline functions" will be undefined symbols in the "so" files.
As a result I had trouble in start volume as "gf_sql_str2sync_t" 

[2015-06-29 05:52:38.491378] I [MSGID: 101190] [event-epoll.c:627:event_dispatch_epoll_worker] 0-epoll: Started thread with index 1
[2015-06-29 05:52:38.499205] W [MSGID: 101095] [xlator.c:189:xlator_dynload] 0-xlator: /usr/local/lib/libgfdb.so.0: undefined symbol: gf_sql_str2sync_t
[2015-06-29 05:52:38.499229] E [MSGID: 101002] [graph.y:211:volume_type] 0-parser: Volume 'test-changetimerecorder', line 16: type 'features/changetimerecorder' is not valid or not found on this machine
[2015-06-29 05:52:38.499262] E [MSGID: 101019] [graph.y:319:volume_end] 0-parser: "type" not specified for volume test-changetimerecorder
[2015-06-29 05:52:38.499335] E [MSGID: 100026] [glusterfsd.c:2151:glusterfs_process_volfp] 0-: failed to construct the graph
[2015-06-29 05:52:38.499470] W [glusterfsd.c:1214:cleanup_and_exit] (--> 0-: received signum (0), shutting down

when gf_sql_str2sync_t was made "static inline gf_sql_str2sync_t" the next issue was with "changelog_dispatch_vec"

[2015-06-29 07:11:33.367259] I [MSGID: 101190] [event-epoll.c:627:event_dispatch_epoll_worker] 0-epoll: Started thread with index 1
[2015-06-29 07:11:33.368816] W [MSGID: 101095] [xlator.c:189:xlator_dynload] 0-xlator: /usr/local/lib/glusterfs/3.8dev/xlator/features/changelog.so: undefined symbol: changelog_dispatch_vec
[2015-06-29 07:11:33.368829] E [MSGID: 101002] [graph.y:211:volume_type] 0-parser: Volume 'test-changelog', line 32: type 'features/changelog' is not valid or not found on this machine
[2015-06-29 07:11:33.368843] E [MSGID: 101019] [graph.y:319:volume_end] 0-parser: "type" not specified for volume test-changelog
[2015-06-29 07:11:33.368922] E [MSGID: 100026] [glusterfsd.c:2151:glusterfs_process_volfp] 0-: failed to construct the graph
[2015-06-29 07:11:33.369025] W [glusterfsd.c:1214:cleanup_and_exit] (--> 0-: received signum (0), shutting down

and so on.

Looks like "inline" functions should be marked as "static inline" or "extern inline" explicitly
Please refer https://gcc.gnu.org/gcc-5/porting_to.html

To recreate the issue without glusterfs, try out this sample code program on fedora 22 gcc 5.1.1 or higher

hello.c
=======

#include <stdio.h>

inline void foo () {
    printf ("hello world");
}

int main () {

    foo ();
    return 0;
}

# gcc hello.c 
/tmp/ccUQ1XPp.o: In function `main':
hello.c:(.text+0xa): undefined reference to `foo'
collect2: error: ld returned 1 exit status
#

Should we change all the inline function to "static inline" or "extern inline" in gluster, appropriately to their scope of use (IMHO would be a right thing to do)?
or should we use a compiler flag to suppress this?

Regards,
Joe 




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