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scripts/bpftrace.sh: redirect output to file

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Allow redirecting output to file. Using simple
"if" for an environment variable, as script arguments
number is variable and using getops seems like an
overkill.

Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Change-Id: I7e219bb1fd6377bc20c44b76cec3685b32e9316c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8643
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
This commit is contained in:
Karol Latecki 2021-07-05 15:23:39 +02:00 committed by Tomasz Zawadzki
parent ecd46370d9
commit 348ff890ad
1 changed files with 5 additions and 1 deletions
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6
scripts/bpftrace.sh
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@ -3,6 +3,9 @@ set -e
if [ $# -lt 2 ]; then
echo "usage: $0 <pid> <script>"
echo ""
echo "Environment variable BPF_OUTFILE can be set to save results to a file"
echo "rather than print to stdout."
exit 1
fi
SCRIPTS_DIR=$(readlink -f $(dirname $0))
@ -12,4 +15,5 @@ BPF_SCRIPT+=$(sed "s#__EXE__#${BIN_PATH}#g" "${@:2}" | sed "s#__PID__#${1}#g")
if [ -n "$ECHO_SCRIPT" ]; then
echo "$BPF_SCRIPT"
fi
bpftrace -p $1 -e "$BPF_SCRIPT"
bpftrace -p $1 -e "$BPF_SCRIPT" ${BPF_OUTFILE:+-o "$BPF_OUTFILE"}