From cdfcd011b7d3e2e22494305de495e385d488402a Mon Sep 17 00:00:00 2001 From: Jason Wessel Date: Wed, 13 Apr 2011 11:40:58 -0400 Subject: [PATCH] Fix up all use of /dev/stderr for portability to busybox /bin/sh The typical shell on a small embedded target using busybox does not have support for /dev/stderr. A more portable way to send output to stderr with echo is to redirect stdout to stderr with 1>&2. Signed-off-by: Jason Wessel Signed-off-by: Mathieu Desnoyers --- lttctl/ltt-armall.sh | 28 ++++++++++++++-------------- lttctl/ltt-disarmall.sh | 20 ++++++++++---------- 2 files changed, 24 insertions(+), 24 deletions(-) diff --git a/lttctl/ltt-armall.sh b/lttctl/ltt-armall.sh index d2548b8..3bb245b 100755 --- a/lttctl/ltt-armall.sh +++ b/lttctl/ltt-armall.sh @@ -20,26 +20,26 @@ MARKERSROOT=${DEBUGFSROOT}/ltt/markers DEFAULTMODULES="ltt-trace-control ltt-marker-control ltt-tracer ltt-relay ltt-kprobes ltt-userspace-event ltt-statedump ipc-trace kernel-trace mm-trace net-trace fs-trace jbd2-trace syscall-trace trap-trace block-trace rcu-trace" usage () { - echo "Usage: $0 [OPTION]..." > /dev/stderr - echo "Connect lttng markers" > /dev/stderr - echo "" > /dev/stderr - echo "Options:" > /dev/stderr - printf "\t-l Also activate locking markers (high traffic)\n" > /dev/stderr - printf "\t-n Also activate detailed network markers (large size)\n" > /dev/stderr - printf "\t-i Also activate input subsystem events (security implication: records keyboard inputs)\n" > /dev/stderr - echo "" > /dev/stderr - printf "\t-q Quiet mode, suppress output\n" > /dev/stderr - printf "\t-h Print this help\n" > /dev/stderr - echo "" > /dev/stderr + echo "Usage: $0 [OPTION]..." 1>&2 + echo "Connect lttng markers" 1>&2 + echo "" 1>&2 + echo "Options:" 1>&2 + printf "\t-l Also activate locking markers (high traffic)\n" 1>&2 + printf "\t-n Also activate detailed network markers (large size)\n" 1>&2 + printf "\t-i Also activate input subsystem events (security implication: records keyboard inputs)\n" 1>&2 + echo "" 1>&2 + printf "\t-q Quiet mode, suppress output\n" 1>&2 + printf "\t-h Print this help\n" 1>&2 + echo "" 1>&2 } if [ "$(id -u)" != "0" ]; then - echo "Error: This script needs to be run as root." > /dev/stderr + echo "Error: This script needs to be run as root." 1>&2 exit 1; fi if [ ! "${DEBUGFSROOT}" ]; then - echo "Error: debugfs not mounted" > /dev/stderr + echo "Error: debugfs not mounted" 1>&2 exit 1; fi @@ -49,7 +49,7 @@ if [ ! -d "${MARKERSROOT}" ]; then modprobe $i done if [ ! -d "${MARKERSROOT}" ]; then - echo "Error: LTT trace controller not found (did you compile and load LTTng?)" > /dev/stderr + echo "Error: LTT trace controller not found (did you compile and load LTTng?)" 1>&2 exit 1; fi fi diff --git a/lttctl/ltt-disarmall.sh b/lttctl/ltt-disarmall.sh index d60a54e..e77be9a 100755 --- a/lttctl/ltt-disarmall.sh +++ b/lttctl/ltt-disarmall.sh @@ -21,27 +21,27 @@ DEFAULTMODULES="ltt-trace-control ltt-marker-control ltt-kprobes ltt-userspace-e EXTRAMODULES="lockdep-trace net-extended-trace" usage () { - echo "Usage: $0 [OPTION]..." > /dev/stderr - echo "Disconnect lttng markers" > /dev/stderr - echo "" > /dev/stderr - echo "Options:" > /dev/stderr - printf "\t-q Quiet mode, suppress output\n" > /dev/stderr - printf "\t-h Print this help\n" > /dev/stderr - echo "" > /dev/stderr + echo "Usage: $0 [OPTION]..." 1>&2 + echo "Disconnect lttng markers" 1>&2 + echo "" 1>&2 + echo "Options:" 1>&2 + printf "\t-q Quiet mode, suppress output\n" 1>&2 + printf "\t-h Print this help\n" 1>&2 + echo "" 1>&2 } if [ "$(id -u)" != "0" ]; then - echo "Error: This script needs to be run as root." > /dev/stderr + echo "Error: This script needs to be run as root." 1>&2 exit 1; fi if [ ! "${DEBUGFSROOT}" ]; then - echo "Error: debugfs not mounted" > /dev/stderr + echo "Error: debugfs not mounted" 1>&2 exit 1; fi if [ ! -d "${MARKERSROOT}" ]; then - echo "Error: LTT trace controller not found (did you compile and load LTTng?)" > /dev/stderr + echo "Error: LTT trace controller not found (did you compile and load LTTng?)" 1>&2 exit 1; fi -- 2.39.5