Files
linux-nvgpu/userspace/gcov.sh
Nicolas Benech f09d19d5a3 gpu: nvgpu: unit: force gcov.sh to use a single thread
On some host OSes, the OS may allocate virtual addresses that are
larger than can be handled by NVGPU. As a workaround, we noticed
that the host OS will not allocate such large addresses when
running single threaded. There is no other way to prevent this
issue nor is there any guarantee that this workaround will always
work...

JIRA NVGPU-1246

Change-Id: I8c89cf6be9f80bd6fb18fd1688037b9144d2d21c
Signed-off-by: Nicolas Benech <nbenech@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2135370
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-06-14 17:36:34 -07:00

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#!/bin/bash
#
# Copyright (c) 2018, NVIDIA CORPORATION. All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
# Script to run NVGPU unit tests and collect GCOV coverage.
# First check dependencies and install them if needed
if [ -z $(which gcc) ] || [ -z "$(pip show gcovr)" ]
then
echo "Some dependencies are missing, installing the now..."
sudo apt install gcc python-pip -y
#pip may have a more recent version of gcovr than apt.
pip install gcovr
fi
SCRIPT_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" > /dev/null && pwd )"
pushd $SCRIPT_ROOT
#Libraries are in a different folder on host and target
LIB_FOLDER="."
if [ -d "./build" ]; then
LIB_FOLDER="./build"
fi
#Extract the root path of the source code
NVGPU_SRC_ROOT=$(readelf -p .debug_line $LIB_FOLDER/libnvgpu-drv.so | \
grep drivers/gpu/nvgpu/os/posix | sed 's/\s*\[.*\]\s*//g' | \
sed 's/drivers\/gpu\/nvgpu\/os\/posix//g' | head -n 1)
NVGPU_SRC_ROOT=$(realpath $NVGPU_SRC_ROOT)
#Make sure the source code is accessible (for on target testing)
if [ -d "$NVGPU_SRC_ROOT/drivers/gpu/nvgpu" ]; then
echo "Root folder for sources: $NVGPU_SRC_ROOT"
else
echo "FATAL: Source code folder not found: $NVGPU_SRC_ROOT"
exit
fi
#Clean existing GCOV files to avoid getting a cumulative result
find . -name "*.gcda" -exec rm {} +
find $NVGPU_SRC_ROOT -name "*.gcda" -exec rm {} +
#Run unit tests
./unit.sh
OUT=$?
if [ ! $OUT -eq 0 ]; then
echo "ERROR: Unit test run failed."
read -p "Press ENTER to run GCOV anyway" -n 1 -r
fi
#Run GCOV
cd ..
if [ -d report ]; then
rm -rf report/
fi
mkdir report
echo "Generating GCOV report..."
python -m gcovr -v -s -e '.+posix/.+' -e '.*userspace/.+' \
-r $NVGPU_SRC_ROOT --html-details --output report/index.html &> gcov.log
#Present the results
if [ "$(uname -m)" = "aarch64" ]; then
echo "Running on target, starting a webserver..."
HOST_IP=$(ip route get 1 | sed -n 's/^.*src \([0-9.]*\) .*$/\1/p')
if [[ "$HOST_IP" =~ ^[0-9\.]+$ ]]; then
echo -e "\n\nOpen http://$HOST_IP:8000/ to see the results"
else
echo "ERROR: Network is down: $HOST_IP"
exit 1
fi
cd report/
python -m SimpleHTTPServer &> /dev/null &
PYTHON_PID=$!
cd ..
read -p "Press ENTER to stop the webserver. " -n 1 -r
kill $PYTHON_PID
else
echo "Running on host, opening default browser..."
xdg-open $SCRIPT_ROOT/../report/index.html
fi
popd