[linux-block.git] / arch / powerpc / tools / gcc-check-mprofile-kernel.sh

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0

set -e
set -o pipefail

# To debug, uncomment the following line
# set -x

# Test whether the compile option -mprofile-kernel exists and generates
# profiling code (ie. a call to _mcount()).
echo "int func() { return 0; }" | \
    $* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null | \
    grep -q "_mcount"

# Test whether the notrace attribute correctly suppresses calls to _mcount().

echo -e "#include <linux/compiler.h>\nnotrace int func() { return 0; }" | \
    $* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null | \
    grep -q "_mcount" && \
    exit 1

echo "OK"
exit 0
Commit	Line	Data
8c50b72a	1	#!/bin/bash
b2441318	2	# SPDX-License-Identifier: GPL-2.0
8c50b72a TD	3
	4	set -e
	5	set -o pipefail
	6
	7	# To debug, uncomment the following line
	8	# set -x
	9
	10	# Test whether the compile option -mprofile-kernel exists and generates
	11	# profiling code (ie. a call to _mcount()).
	12	echo "int func() { return 0; }" \| \
	13	$* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null \| \
	14	grep -q "_mcount"
	15
	16	# Test whether the notrace attribute correctly suppresses calls to _mcount().
	17
	18	echo -e "#include <linux/compiler.h>\nnotrace int func() { return 0; }" \| \
	19	$* -S -x c -O2 -p -mprofile-kernel - -o - 2> /dev/null \| \
	20	grep -q "_mcount" && \
	21	exit 1
	22
	23	echo "OK"
	24	exit 0