plugin first steps

[Robert Fu]

Hi Chris,
 
> I have not followed in detail where they are getting the info from but > Makefiles would concern me.
 
Yes, this part need be re-examed. I also had some concerns initially, 
and worried that the Makefile referenced might not be generic enough.
Also currently no additional processing is done after the link step.
 
I checked the BSP config files after you mentioned it, and it
looks like we can extract some information there. I also have a couple 
of questions:
 
1. The configure command I used was:
 
/opt/src/rtems/rtems-4.9.0/configure --target=i386-rtems4.9 --enable-rtemsbsp=pc686 --enable-cxx --enable-rdbg --prefix=/opt/rtems_install
And I got the following in \opt\rtems_install\i386-rtems4.9\pc686\make\bsp.cfg
 
#### Does this BSP support RTEMS's remote debugger ?##HAS_RDBG = no
And the following in target.cfg;
 
RTEMS_HAS_RDBG = no
 
Which is wrong? My configure option or the cfg files?
 
2. It looks like the Makefiles in the those sample programs (e.g., HelloWorld)
   contains extra defined symbols determined by the configure script for 
   sample program. The following is an example:
 
   DEFS = ...... -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_CSTDIO=1 -DHAVE_CSTDLIB=1 -DHAVE_IOSTREAM=1
I thought these symbols indicate the capability of the target gcc system. 
None of such symbols is included in the installed BSP files. When we compile
user programs, should we include these symbols like what's in those sample
programs?
 
3. For "CFLAGS= -g -O2 -D_REENTRANT -shared-libgcc" 
   It's said that RTEMS is linked statically, so "-shared-libgcc" should not be used.
   Should "-shared-libgcc" be used? Is "-D_REENTRANT" needed?
 
Thanks a lot for your help!
 
Robert Fu
> Date: Tue, 25 Nov 2008 11:17:01 +1100> From: chrisj at rtems.org> To: joel.sherrill at oarcorp.com> Subject: Re: plugin first steps> CC: sebastian.huber at embedded-brains.de; robert.fu at live.com; rtems-users at rtems.org> > Joel Sherrill wrote:> > It seems like you are working to extract information> > from the RTEMS Application Makefiles and generate> > some configuration information for Eclipse. Chris> > has been working to eliminate them in favor of autoconf> > for the external examples.> > > > I have not followed in detail where they are getting the info from but > Makefiles would concern me.> > The approach taken in the autoconf examples is to use the BSP configuration files.> > Does Eclipse have support for autotools ?> > > Couldn't the same information be directly generated> > by RTEMS?> > It is held in RTEMS already in the BSP config files. This file is installed > when the BSP is installed.> > Regards> Chris> _______________________________________________> rtems-users mailing list> rtems-users at rtems.com> http://rtems.rtems.org/mailman/listinfo/rtems-users
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