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On Tue, Feb 23, 2010 at 11:35 PM, Jeff Johnston<jjohnstn@redhat.com> wrote:
On 23/02/10 05:41 PM, Renato Caldas wrote:
Hello,Thanks for catching this.
I've been trying to compile rtems for a few days, it always failed with a strange error message. Now I belive I found out why: I had compiled gcc with --enable-threads.
I managed to find one problem. In sys/types.h there is:
#if defined(_POSIX_THREADS)&& !defined(__CYGWIN__) (...)
#if defined(__XMK__) typedef struct pthread_attr_s { (...) } pthread_attr_t;
(...)
#else /* !defined(__XMK__) */ typedef struct { (...) #endif /* !defined(__XMK__) */
(...) } pthread_attr_t;
(...)
#endif /* defined(_POSIX_THREADS) */
This is clearly broken, because a spurious "} pthread_attr_t" is placed in the code #if defined(__XMK__). The fix seems to be easy.
It appears some __XMK__ patches weren't applied right as there was also some
redundant checking for __XMK__ being performed. I have posted a patch.
Thanks! Disabling thread support in gcc doesn't fix it though, so it must be something else...
You'll have to take that up on the RTEMS lists as the thread support codeI assume thread support is severely broken, or at least severely untested, right? If so, wouldn't it be wiser to just make sure it is disabled?
isn't actually in newlib and RTEMS is tested by the RTEMS folks. Cygwin also
uses thread support and I would assume it is working fine as they are pretty
quick to report issues.
It seems the cygwin code takes a different route: #if defined(_POSIX_THREADS)&& !defined(__CYGWIN__)
My feeling is that few people actually build RTEMS in non-windows hosts :) I'll bug the RTEMS folks tomorrow, thanks.
You would be wrong. Most people build RTEMS on non-Windows hosts. :) I would say now we are evenly split between Fedora, Centos, and Ubuntu with a fair number of MacOS users. :)
Are you using our prebuilt RPMs? How are you building the tools.
Cheers, Renato
-- Jeff J.
Cheers,
Renato
-- Joel Sherrill, Ph.D. Director of Research& Development joel.sherrill@OARcorp.com On-Line Applications Research Ask me about RTEMS: a free RTOS Huntsville AL 35805 Support Available (256) 722-9985
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