Re: [Xenomai-help] Usage of sim with xenomai-2.0

[Philippe Gerum <rpm@xenomai.org>]

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Philippe Gerum wrote:
> ROSSIER Daniel wrote:
> 
>> Hi Philippe,
>>
>> Here is the info about my env:
>>
>> - kernel 2.6.9
>> - glibc 2.3.5
>> - gcc 3.4.4
>> - actually, I built my env. from scratch (no distro) - simply from 
>> www.linuxfromscratch.org
>>
>> But everything else works fine :-) (xenomai works perfectly. I tested 
>> it with the LinuxTraceToolkit, and it works as well)
>>
>> Here is the fragment of log, right before the failure (all the 
>> compilation steps before are OK):
>>
>>
>> make[4]: Leaving directory 
>> `/home/rossier/xenomai-2.0/sim/gcic/gcc-build/i686-pc-linux-gnu/libiberty' 
>>
>> make[3]: Leaving directory 
>> `/home/rossier/xenomai-2.0/sim/gcic/gcc-build/i686-pc-linux-gnu/libiberty' 
>>
>> make[3]: Entering directory 
>> `/home/rossier/xenomai-2.0/sim/gcic/gcc-build/i686-pc-linux-gnu/libio'
>> if [ x"no" = xyes ] && [ ! -d pic ]; then \
>>   mkdir pic; \
>> else true; fi
>> touch stamp-picdir
>> test x"no" != xyes ||\
>>   /home/rossier/xenomai-2.0/sim/gcic/gcc-build/gcc/xgcc 
>> -B/home/rossier/xenomai-2.0/sim/gcic/gcc-build/gcc/ 
>> -B/usr/realtime/libexec/gcic/i686-pc-linux-gnu/bin/ -c -g -O2 -I. 
>> -I../../../gcc-2.95.3/libio -D_IO_MTSAFE_IO  
>> ../../../gcc-2.95.3/libio/iogetline.c -o pic/iogetline.o 
>> /home/rossier/xenomai-2.0/sim/gcic/gcc-build/gcc/xgcc 
>> -B/home/rossier/xenomai-2.0/sim/gcic/gcc-build/gcc/ 
>> -B/usr/realtime/libexec/gcic/i686-pc-linux-gnu/bin/ -c -g -O2 -I. 
>> -I../../../gcc-2.95.3/libio -D_IO_MTSAFE_IO 
>> ../../../gcc-2.95.3/libio/iogetline.c
>> In file included from ../../../gcc-2.95.3/libio/libio.h:167,
>>                  from ../../../gcc-2.95.3/libio/iolibio.h:1,
>>                  from ../../../gcc-2.95.3/libio/libioP.h:47,
>>                  from ../../../gcc-2.95.3/libio/iogetline.c:26:
>> /usr/include/bits/stdio-lock.h:24: lowlevellock.h: No such file or 
>> directory
>> make[3]: *** [iogetline.o] Error 1
>> make[3]: Leaving directory 
>> `/home/rossier/xenomai-2.0/sim/gcic/gcc-build/i686-pc-linux-gnu/libio'
>> make[2]: *** [all-target-libio] Error 2
>> make[2]: Leaving directory `/home/rossier/xenomai-2.0/sim/gcic/gcc-build'
>> make[1]: *** [gcc-build/.gcic-built] Error 2
>> make[1]: Leaving directory `/home/rossier/xenomai-2.0/sim/gcic'
>> make: *** [all-recursive] Error 1
>> root@domain.hid#
>>
> 
> It seems to be an incompatibility issue between the NPTL and gcc-2.95.x:
> http://sources.redhat.com/ml/glibc-bugs/2004-06/msg00144.html
> 
> The best way to solve this would be to get rid of the MT support for 
> building the GCC-based instrumenter, since we don't need it, and libio/ 
> compilation would not break. I'll look at some way to fix this.
> 

Could you try the following steps and let me know if that works in your environment:

- unpack the gcc-2.95.3 archive
- apply the attached patch against the gcc tree
- pack back the tree
- configure, build and install Xenomai again to use the patched gcc archive for 
building the simulator.

In order to test the resulting stuff:

- export PATH=/usr/realtime/bin:$PATH
- export LD_LIBRARY_PATH=/usr/realtime/lib:$LD_LIBRARY_PATH
- cd xenomai-2.0/skins/vxworks/demos
- make sim

You should have the "satch_s" executable available in the current dir at that 
point; just start the following command then:
$ xenoscope satch_s

PS: at Xenomai configuration time, make sure to have selected the VxWorks skin 
among the APIs to build.

-- 

Philippe.

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diff -uNrp gcc-2.95.3/libio/config/mtsafe.mt gcc-2.95.3-no-mt/libio/config/mtsafe.mt
--- gcc-2.95.3/libio/config/mtsafe.mt	1997-09-27 06:07:24.000000000 +0200
+++ gcc-2.95.3-no-mt/libio/config/mtsafe.mt	2005-10-25 19:43:24.000000000 +0200
@@ -1,2 +1,3 @@
 # tell we want the mt-safe version
-MT_CFLAGS = -D_IO_MTSAFE_IO
+# MT_CFLAGS = -D_IO_MTSAFE_IO
+MT_CFLAGS =
diff -uNrp gcc-2.95.3/libstdc++/config/linux.mt gcc-2.95.3-no-mt/libstdc++/config/linux.mt
--- gcc-2.95.3/libstdc++/config/linux.mt	1998-02-01 13:38:27.000000000 +0100
+++ gcc-2.95.3-no-mt/libstdc++/config/linux.mt	2005-10-25 19:43:07.000000000 +0200
@@ -1,2 +1,3 @@
 # tell we want the mt-safe version
-MT_CFLAGS = -D_IO_MTSAFE_IO
+# MT_CFLAGS = -D_IO_MTSAFE_IO
+MT_CFLAGS =