1b71c9ffbSNicholas Piggin#!/bin/bash 2b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 3b71c9ffbSNicholas Piggin 4b71c9ffbSNicholas Pigginset -e 5b71c9ffbSNicholas Pigginset -o pipefail 6b71c9ffbSNicholas Piggin 7b71c9ffbSNicholas Piggin# To debug, uncomment the following line 8b71c9ffbSNicholas Piggin# set -x 9b71c9ffbSNicholas Piggin 10b71c9ffbSNicholas Piggin# Test whether the compile option -mprofile-kernel exists and generates 11b71c9ffbSNicholas Piggin# profiling code (ie. a call to _mcount()). 12b71c9ffbSNicholas Pigginecho "int func() { return 0; }" | \ 13b71c9ffbSNicholas Piggin $* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null | \ 14b71c9ffbSNicholas Piggin grep -q "_mcount" 15b71c9ffbSNicholas Piggin 16b71c9ffbSNicholas Piggin# Test whether the notrace attribute correctly suppresses calls to _mcount(). 17b71c9ffbSNicholas Piggin 18b71c9ffbSNicholas Pigginecho -e "#include <linux/compiler.h>\nnotrace int func() { return 0; }" | \ 19b71c9ffbSNicholas Piggin $* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null | \ 20b71c9ffbSNicholas Piggin grep -q "_mcount" && \ 21b71c9ffbSNicholas Piggin exit 1 22b71c9ffbSNicholas Piggin 23b71c9ffbSNicholas Pigginecho "OK" 24b71c9ffbSNicholas Pigginexit 0 25