Hi
For my embedded target system I installed BusyBox as it was the easiest way to
get a small GNU/Linux system to boot into a working shell. (But it takes less
than 16 seconds from power on till the the familiar login: prompt.)
But I ran into the problem, that the xeno-*-applications did not run under the
busybox environment. Here are some comment on my proposed changes.
1) To make a shell work under the busybox I had to specify #! /bin/sh instead
of #! /bin/bash.
2) To make the run I run the xeno-*-applications on my Debian GNU/Linux
PowerBook
either as:
$ xeno-info
or as
$ busybox sh xeno-info
3) Once all tests passed on my PowerBook, I switched to the embedded PPC405GPr
board using a recent busybox (version 1.1.3).
This exposed some more not supported errors, eg.
fdformat: unrecognized option `--version'
Also on an embedded system a lot of the usual utilites like gcc, make, etc are
not present. Therefore I checked for their existence with expressions like
`which make`
4) As the BSD utility script is not present on my embedded system,
xeno-test -L does not work.
5) The busybox shell does not know arrays. Also for unknown reasons the
dd_jobs variable got not updated outside of the function generate_loads.
Therefore I added a killall dd in the cleanup.
6) trap CHLD did not work under the BusyBox. Also (to be sure) called
cleanup_load manually before exit.
7) Id did not ident the not busybox parts in xeno-info. This makes the patch
smaller and more readable, but should probably be corrected before applying
it.
8) Using `dirname $0` relative paths to make xeno-test work also if not called
in /usr/xenomai/bin
9) Changing the e-mail address to [EMAIL PROTECTED] is also included.
Checking the changes between running xeno-test (as bash or as busybox) and the
old one did not reveal any significant changes. On my PPC405 system I could
not complete this test as there segmentation faults running the invidual
tests.
I would appreciate if these changes (or similar) could go -- after a review --
into the trunk (not necessarily before 2.2). I am specially interested in Jim
Cromie's opinion.
If anybody has a working target with a Xenomai + BusyBox combination and would
be willing to test drive my changes, I would appreciate a feedback
enormously.
These changes are a precondition to make the buildbot run xeno-test on the
only board where I can easily and automatically switch the power off and on,
without risking a family crisis.
Best regards
--
Niklaus Giger
Index: scripts/xeno-config.in
===
--- scripts/xeno-config.in (Revision 1135)
+++ scripts/xeno-config.in (Arbeitskopie)
@@ -1,4 +1,4 @@
-#! /bin/bash
+#! /bin/sh
staging=${DESTDIR}
prefix=@prefix@
Index: scripts/xeno-info
===
--- scripts/xeno-info (Revision 1135)
+++ scripts/xeno-info (Arbeitskopie)
@@ -1,31 +1,51 @@
-#!/bin/sh
+#! /bin/sh
#
# This file has been lifted 'as is' from linux/scripts/ver_linux.
-#
+# Adapted to be run also under the BusyBox. If you want to test it under the BusyBox use
+# busybox sh xeno-info
PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:$PATH
echo 'If some fields are empty or look unusual you may have an old version.'
echo 'Compare to the current minimal requirements in Documentation/Changes.'
echo ' '
+withBusybox=0
+if test -L $SHELL ; then # is sh a logical link to busybox
+exeName=`ls -l $SHELL|cut -d\ -f2`
+if test `basename $exeName` = busybox; then
+ withBusybox=1; else echo 2.3
+fi
+elif test -n $_ -a `basename $_` = busybox; then
+withBusybox=1;
+# else running a real /bin/sh (bash) shell
+fi
+
+if test $withBusybox -eq 1; then busybox | grep -i BusyBox v ; fi
+
uname -a
echo ' '
+if test -n `which gcc` ; then
gcc --version 21| head -n 1 | grep -v gcc | awk \
'NR==1{print Gnu C , $1}'
gcc --version 21| grep gcc | awk \
'NR==1{print Gnu C , $3}'
+fi
+if test -n `which gcc` ; then
make --version 21 | awk -F, '{print $1}' | awk \
'/GNU Make/{print Gnu make ,$NF}'
+fi
ld -v 21 | awk -F\) '{print $1}' | awk \
'/BFD/{print binutils ,$NF}'
+if test 0 -eq $withBusybox ; then
fdformat --version | awk -F\- '{print util-linux, $NF}'
mount --version | awk -F\- '{print mount , $NF}'
+fi
depmod -V 21 | awk 'NR==1 {print module-init-tools ,$NF}'
@@ -50,21 +70,26 @@
isdnctrl 21 | grep version | awk \
'NR==1{print isdn4k-utils , $NF}'
+if test -n `which ldd` ; then
ls -l `ldd /bin/sh | awk '/libc/{print $3}'` | sed \
-e 's/\.so$//' | awk -F'[.-]' '{print Linux C Library \
$(NF-2).$(NF-1).$NF}'
ldd -v /dev/null 21 ldd -v || ldd --version |head -n1 | awk \
'NR==1{print Dynamic linker (ldd) , $NF}'
+fi
ls -l /usr/lib/lib{g,stdc}++.so 2/dev/null | awk -F. \
'{print
