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MAKEALL: fix kill_children for BSD hosts

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ps on BSD hosts (like OS X) do not provide the --no-headers switch nor
understand the AIX format descriptions. Unfortunately there seems no solution to
get the PIDs of children in a platfrom independent manner.
Therefore detect the OS and decide upon that which way to go.

This patch makes the MAKEALL script cleanly stoppable on bare OS X when using
the parallel builds of targets.

Additionally this patch removes double call to grep by a single call to sed for
GNU style child PID detection.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Andreas Bießmann 2013-02-07 22:35:57 +00:00 committed by Tom Rini
parent c08349e77c
commit 6bdd9f8967
1 changed files with 14 additions and 2 deletions
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16
MAKEALL
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@ -802,8 +802,20 @@ build_targets() {
#-----------------------------------------------------------------------
kill_children() {
local pgid=`ps -p $$ --no-headers -o "%r" | tr -d ' '`
local children=`pgrep -g $pgid | grep -v $$ | grep -v $pgid`
local OS=$(uname -s)
local children=""
case "${OS}" in
"Darwin")
# Mac OS X is known to have BSD style ps
local pgid=$(ps -p $$ -o pgid | sed -e "/PGID/d")
children=$(ps -g $pgid -o pid | sed -e "/PID\|$$\|$pgid/d")
;;
*)
# everything else tries the GNU style
local pgid=$(ps -p $$ --no-headers -o "%r" | tr -d ' ')
children=$(pgrep -g $pgid | sed -e "/$$\|$pgid/d")
;;
esac
kill $children 2> /dev/null
wait $children 2> /dev/null