Re: [Xenomai-help] xenomai 2.5.0 uclibc 0.30 compatibility?

[Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>]

Sinisa Denic wrote:
> On Wednesday 03 February 2010 19:30:00 you wrote:
>> Sinisa Denic wrote:
>>> On Monday 01 February 2010 14:07:15 Gilles Chanteperdrix wrote:
>>>> Sinisa Denic wrote:
>>>>> On Sunday 31 January 2010 11:31:28 Gilles Chanteperdrix wrote:
>>>>>> This is bad news, the problem is that uclibc's stdio.h needs
>>>>>> pthread.h, which because of the -I flags we pass is xenomai's
>>>>>> pthread.h, which includes asm/syscall.h, which needs stdio.h.
>>>>> Same thing,
>>>>> I can't figure out which file to include in pthread.h
>>>>> posix/init.c - same error
>>>>> include/asm-arm/xenomai/syscall.h - produce error from start building
>>>>> rtdm ...
>>>> In every .c file where you get the error, you should try and include
>>>> pthread.h before anything else.
>>> Ok, now I've got it built. In attach there is a patch, maybe usefull to
>>> someone.
>> Xenomai v2.5.1 should include a cleaner fix (along with the I-pipe for
>> Linux 2.6.30 fixed for the arm926ejs issue, as well as some improvements
>> on at91). So, it would be nice if you could test this release and report.
> Ok , previos problems didn't appear, but now I'm getting this:
> 
> latency.c:12:22: error: execinfo.h: No such file or directory
> latency.c: In function ‘mode_sw’:
> latency.c:460: warning: implicit declaration of function ‘backtrace’
> latency.c:461: warning: implicit declaration of 
> function ‘backtrace_symbols_fd’
> make[3]: *** [latency-latency.o] Error 1
> make[3]: Leaving directory 
> `/opt/pct210_build/xenomai-2.5.1-eabi/src/testsuite/latency'
> make[2]: *** [all-recursive] Error 1
> make[2]: Leaving directory 
> `/opt/pct210_build/xenomai-2.5.1-eabi/src/testsuite'
> make[1]: *** [all-recursive] Error 1
> make[1]: Leaving directory `/opt/pct210_build/xenomai-2.5.1-eabi/src'
> make: *** [all-recursive] Error 1
> 
> In order to compile xeno2.5.1 I skipped testsuite building and it passed

Ok. Could you try the following patch?

diff --git a/src/testsuite/latency/latency.c
b/src/testsuite/latency/latency.c
index ca5f1bf..f397b42 100644
--- a/src/testsuite/latency/latency.c
+++ b/src/testsuite/latency/latency.c
@@ -9,7 +9,9 @@
 #include <sys/time.h>
 #include <unistd.h>

+#ifndef __UCLIBC__
 #include <execinfo.h>
+#endif /* !__UCLIBC__ */

 #include <native/task.h>
 #include <native/timer.h>
@@ -447,7 +449,13 @@ void faulthand(int sig)

 void mode_sw(int sig)
 {
+#ifndef __UCLIBC__
 	const char buffer[] = "Mode switch, aborting. Backtrace:\n";
+#else /* __UCLIBC__ */
+	const char buffer[] = "Mode switch, aborting."
+		" Backtrace unavailable with uclibc.\n";
+#endif /* __UCLIBC__ */
+	
 	static void *bt[200];
 	unsigned n;

@@ -457,8 +465,10 @@ void mode_sw(int sig)
 	}

 	write(STDERR_FILENO, buffer, sizeof(buffer));
+#ifndef __UCLIBC__
 	n = backtrace(bt, sizeof(bt)/sizeof(bt[0]));
 	backtrace_symbols_fd(bt, n, STDERR_FILENO);
+#endif /* !__UCLIBC__ */

 	signal(sig, SIG_DFL);
 	kill(getpid(), sig);


-- 
Gilles Chanteperdrix, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com