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