Building autosave with EPICS 7.0.6 and RTEMS5

[Matt Rippa via Tech-talk <tech-talk at aps.anl.gov>]

Hello,

Our builds of autosave [1] using RTEMS 4.10.2 and EPICS 3.15.x have a warning of an implicit call to nfsMount(). Despite this nfsMount() works fine on iocBoot. 

In EPICS 7.0.6 and RTEMS5 there's a rule to halt on warning when building autosave. I searched tech-talk and [2] looks similar, moving from RTEMS 4.9 to 4.10.

Build host is CentOS-8, RTEMS-mvme2700 (aka 2307) with details in [2]. But the implicit warning also happens on RTEMS-mvme3100 and RTEMS-beatnik.

/home/mrippa/MVME2307/rtems/5/bin/powerpc-rtems5-gcc --pipe -B/home/mrippa/MVME2307/rtems/5/powerpc-rtems5/mvme2307/lib/ -specs bsp_specs -qrtems   -fasm   -mcpu=604 -mmultiple -mstring -mstrict-align -meabi       -D_GNU_SOURCE -D_DEFAULT_SOURCE            -DUNIX      -O2 -g -ffunction-sections -fdata-sections   -Wall -Werror-implicit-function-declaration     -DUSE_TYPED_RSET -DDBLOADRECORDSHOOKREGISTER   -DMY_DO_BOOTP=NULL -DHAVE_PPCBUG -DNVRAM_INDIRECT    -D__LINUX_ERRNO_EXTENSIONS__ -DRTEMS_LEGACY_STACK  -I. -I../O.Common -I. -I. -I../os/RTEMS -I../os/default -I.. -I../../../include/compiler/gcc -I../../../include/os/RTEMS -I../../../include -I/home/mrippa/work/vendor/epics-base/include/compiler/gcc -I/home/mrippa/work/vendor/epics-base/include/os/RTEMS -I/home/mrippa/work/vendor/epics-base/include        -c ../os/RTEMS/osdNfs.c
../os/RTEMS/osdNfs.c: In function 'mountFileSystem':
../os/RTEMS/osdNfs.c:45:9: error: implicit declaration of function 'nfsMount'; did you mean 'nfsInit'? [-Werror=implicit-function-declaration]
     if (nfsMount(uidhost, path, mntpoint) == OK) {     /* 0 - succeed; -1 - failed */
         ^~~~~~~~
         nfsInit
cc1: some warnings being treated as errors
make[3]: *** [/home/mrippa/work/vendor/epics-base/configure/RULES_BUILD:259: osdNfs.o] Error 1

Is there something off with my RTEMS or EPICS builds?

Thanks,

-Matt

[1] autosave https://github.com/epics-modules/autosave.git

[2] https://epics.anl.gov/tech-talk/2012/msg01045.php

[3] rtems5_epics7_build.txt (attached)

mkdir -p ~/work/vendor/MVME2307
cd ~/work/vendor/MVME2307
git clone https://github.com/RTEMS/rtems-source-builder.git rsb
cd rsb
git checkout 5
cd rtems
../source-builder/sb-set-builder --prefix=$HOME/MVME2307/rtems/5 5/rtems-powerpc

# 34 mins build...

# Setup environment 
export RTEMS_VERSION=5
export RTEMS_ARCH=powerpc-rtems${RTEMS_VERSION}
export RTEMS_BSP=mvme2307
export RTEMS_ROOT=${HOME}/MVME2307/rtems/${RTEMS_VERSION}
export PATH=${RTEMS_ROOT}/bin:${PATH}
export RTEMS_MAKEFILE_PATH=${RTEMS_ROOT}/${RTEMS_ARCH}/${RTEMS_BSP}
export RTEMS_SHARE_PATH=${RTEMS_ROOT}/share/rtems${RTEMS_VERSION}

# Build rtems5 kernel
cd ~/work/vendor/MVME2307
git clone https://github.com/RTEMS/rtems.git kernel
cd kernel/
git checkout 5
./bootstrap -c && $HOME/work/vendor/MVME2307/rsb/source-builder/sb-bootstrap 

#CentOS-8 uses spax 
sudo dnf install spax

#Build directory is separate from source. Referenced from --prefix above.
cd ~/MVME2307/
mkdir -p build/b-mvme2307
cd build/b-mvme2307/
../../kernel/configure --prefix=$HOME/MVME2307/rtems/5 --target=powerpc-rtems5 --enable-rtemsbsp=mvme2307 --enable-posix --enable-c++ --enable-networking --enable-tests
make -j16 all
make install

#Build latest epics 7.0.6
#Patch configure files to tell epics where rtems5 is and which bsp to use (mvme2307 == mvme2700).

cd ~/work/vendor/
git clone --recursive https://github.com/epics-base/epics-base.git
cd epics-base

diff --git a/configure/os/CONFIG_SITE.Common.RTEMS b/configure/os/CONFIG_SITE.Common.RTEMS
index 6857dc9a9..759275708 100644
--- a/configure/os/CONFIG_SITE.Common.RTEMS
+++ b/configure/os/CONFIG_SITE.Common.RTEMS
@@ -21,8 +21,8 @@
 # APS:
 #RTEMS_VERSION = 4.10.2
 #RTEMS_BASE = /usr/local/vw/rtems/rtems-4.10.2
-#RTEMS_VERSION = 5
-#RTEMS_BASE = /usr/local/vw/rtems/rtems-5.1
+RTEMS_VERSION = 5
+RTEMS_BASE = /home/mrippa/MVME2307/rtems/$(RTEMS_VERSION)


diff --git a/configure/CONFIG_SITE b/configure/CONFIG_SITE
index 03ec6d114..3a7909381 100644
--- a/configure/CONFIG_SITE
+++ b/configure/CONFIG_SITE
@@ -96,7 +96,7 @@
 # Which target architectures to cross-compile for.
 #  Definitions in configure/os/CONFIG_SITE.<host>.Common
 #  may override this setting.
-CROSS_COMPILER_TARGET_ARCHS=
+CROSS_COMPILER_TARGET_ARCHS=RTEMS-mvme2700