[Buildroot] [autobuild.buildroot.net] Your build results for 2016-09-05

Hi Thomas, Waldemar,

Le 06/09/2016 ? 08:30, Thomas Petazzoni a ?crit :

Hello,

This is the list of Buildroot build failures that occured on
2016-09-05, and for which you are a registered architecture developer
or package developer. Please help us improving the quality of
Buildroot by investigating those build failures and sending patches to
fix them. Thanks!

Build failures related to your packages:

        bfin |                  xenomai-2.6.4 | http://autobuild.buildroot.net/results/fcae0611ac87204ab68d6828276b635d1a31a178

I think it's an issue between uClibc-ng and Xenomai on Blackfin due to
pthread_atfork(), shm_open() and shm_unlink() local definition in Xenomai.

Error:
bind.c:(.text+0x20): multiple definition of `pthread_atfork'
.libs/libxenomai_la-assert_context.o:assert_context.c:(.text+0x54): first
defined here

sem_heap.c:(.text+0xc): multiple definition of `shm_open'
.libs/libxenomai_la-bind.o:bind.c:(.text+0x2c): first defined here

sem_heap.c:(.text+0x24): multiple definition of `shm_unlink'
.libs/libxenomai_la-bind.o:bind.c:(.text+0x44): first defined here

It's because the Xenomai definition use declare these function as "inline" and
not uClibc-ng

Xenomai [1]:
/* uClibc does not provide pthread_atfork() for this arch; provide it
   here. Note: let the compiler decides whether it wants to actually
   inline this routine, i.e. do not force always_inline. */
inline __attribute__((weak)) int pthread_atfork(void (*prepare)(void),
						void (*parent)(void),
						void (*child)(void))

uClibc-ng:
extern int pthread_atfork (void (*__prepare) (void),
			   void (*__parent) (void),
			   void (*__child) (void)) __THROW;

I guess those "inline" should be removed?
Weldemar what do you think?

Best regards,
Romain

[1] xenomai/include/asm-blackfin/syscall.h