nfs.c not linking

[Ben Dart]

Try adding "-lnfs" to the linker flags, that's what I have to do for 4.11 at least.

Where exactly do you add the linker flags too? RTEMS has lots of makefiles? Where is the linking performed? 

Ben

-----Original Message-----
From: Nick Withers [mailto:nick.withers at anu.edu.au] 
Sent: Wednesday, June 03, 2015 4:40 PM
To: Ben Dart
Cc: Joel Sherrill; Gedare Bloom; users at rtems.org
Subject: Re: nfs.c not linking

On Wed, 2015-06-03 at 13:33 -0700, Ben Dart wrote:
> When I build this I get the linking error,
> 
> 1>../../../../../adept_5200/lib\librtemscpu.a(libshell_a-main_mount_nfs.o): In function `rtems_shell_nfs_mounter':
> 1>d:\Subversion\rtems49\Trunk\build_5200\powerpc-rtems4.9\c\adept_5200\cpukit\libmisc/../../../../../../rtems-4.9.2/c/src/../../cpukit/libmisc/shell/main_mount_nfs.c:46: undefined reference to `rpcUdpInit'
> 1>d:\Subversion\rtems49\Trunk\build_5200\powerpc-rtems4.9\c\adept_5200\cpukit\libmisc/../../../../../../rtems-4.9.2/c/src/../../cpukit/libmisc/shell/main_mount_nfs.c:51: undefined reference to `nfsInit'
> 1>d:\Subversion\rtems49\Trunk\build_5200\powerpc-rtems4.9\c\adept_5200\cpukit\libmisc/../../../../../../rtems-4.9.2/c/src/../../cpukit/libmisc/shell/main_mount_nfs.c:58: undefined reference to `nfsMount'
> 1>../../../../../adept_5200/lib\librtemscpu.a(dummy.o):(.data+0x10): undefined reference to `main'
> 
> Important parts are these:
> 
> In function `rtems_shell_nfs_mounter':
> 	main_mount_nfs.c:46: undefined reference to `rpcUdpInit'
> 	main_mount_nfs.c:51: undefined reference to `nfsInit'
> 	main_mount_nfs.c:58: undefined reference to `nfsMount'
> 
> To me this indicates that nfs.c is not being correctly linked to this file? Has there been a bug that describes this behavior? Was anyone ever able to use `mount -t nfs` in 4.9.2? 
> 
> There is a similar bug reported here: 
> http://www.aps.anl.gov/epics/tech-talk/2012/msg01030.php?format=printe
> r But this is for 4.10 and I checked the nfs.c and other files and 
> there are no static declarations of these files.
> 
> Is there definitely nothing else I need to do to get this working? No additions to make files to link these together correctly? Or any compiler directives? 

Try adding "-lnfs" to the linker flags, that's what I have to do for
4.11 at least.

> Thanks again for your help.
> 
> Ben
> 
> 
> -----Original Message-----
> From: Joel Sherrill [mailto:joel.sherrill at oarcorp.com]
> Sent: Wednesday, June 03, 2015 8:29 AM
> To: Gedare Bloom; Ben Dart
> Cc: users at rtems.org
> Subject: Re: nfs.c not linking
> 
> 
> 
> On June 3, 2015 11:25:26 AM EDT, Gedare Bloom <gedare at rtems.org> wrote:
> >On Wed, Jun 3, 2015 at 11:21 AM, Ben Dart <Ben.Dart at adept.com> wrote:
> >> Hi,
> >>
> >>
> >>
> >> I am trying to build RTEMS 4.9.2 with the command line `mount`
> >enabled for
> >> nfs mounts. As suggested here:
> >This version of RTEMS is not really supported by the public 
> >community, although there are probably still enough active and 
> >ex-users of it that you might get help.
> 
> +1 this is old.
> 
> >
> >>
> >https://docs.rtems.org/releases/rtemsdocs-4.9.2/share/rtems/html/shel
> >l/
> >shell00038.html
> >> I have added the following to shellconfig.h:
> >>
> >>
> >>
> >> #ifdef RTEMS_NETWORKING
> >>
> >>   #define CONFIGURE_SHELL_MOUNT_NFS
> >>
> >> #endif
> >>
> >I'm not sure what this shellconfig.h is, but you should be including 
> >this in a file your application will include before it includes 
> >confdefs.h, and then you also need to be sure to configure rtems with 
> >--enable-networking.
> 
> Shellconfig.h is the way to configure the SRT of commands in the shell.
> 
> >>
> >>
> >> This should fill rtems_shell_Mount_filesystems with the NFS mount
> >type and
> >> allow me to mount with NFS. Unfortunately I am unable to build. I 
> >> get linkers errors as follows:
> >>
> >>
> >>
> >>
> >1>../../../../../adept_5200/lib\librtemscpu.a(libshell_a-main_mount_nfs.o):
> >> In function `rtems_shell_nfs_mounter':
> >>
> >>
> >1>d:\Subversion\rtems49\Trunk\build_5200\powerpc-rtems4.9\c\adept_5200\cpukit\libmisc/../../../../../../rtems-4.9.2/c/src/../../cpukit/libmisc/shell/main_mount_nfs.c:46:
> >> undefined reference to `rpcUdpInit'
> >>
> >>
> >1>d:\Subversion\rtems49\Trunk\build_5200\powerpc-rtems4.9\c\adept_5200\cpukit\libmisc/../../../../../../rtems-4.9.2/c/src/../../cpukit/libmisc/shell/main_mount_nfs.c:51:
> >> undefined reference to `nfsInit'
> >>
> >>
> >1>d:\Subversion\rtems49\Trunk\build_5200\powerpc-rtems4.9\c\adept_5200\cpukit\libmisc/../../../../../../rtems-4.9.2/c/src/../../cpukit/libmisc/shell/main_mount_nfs.c:58:
> >> undefined reference to `nfsMount'
> >>
> >> 1>collect2: ld returned 1 exit status
> >>
> >>
> >>
> >> Is there something else I need to do to be able to use the ‘mount’
> >console
> >> command with TFTP or NFS?
> >>
> >>
> >>
> >> Ben
> >>
> >>
> >> _______________________________________________
> >> users mailing list
> >> users at rtems.org
> >> http://lists.rtems.org/mailman/listinfo/users
> >_______________________________________________
> >users mailing list
> >users at rtems.org
> >http://lists.rtems.org/mailman/listinfo/users
> 
> --joel
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