CMake: add graphviz generation scripts

tools/cmake_generate_graphviz/CMakeGraphVizOptions.cmake

+# Copyright 2020 The SwiftShader Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of te License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This file sets configuration values for CMake's GraphViz generation.
+# See https://cmake.org/cmake/help/latest/module/CMakeGraphVizOptions.html
+
+# Defaults
+set(GRAPHVIZ_EXECUTABLES TRUE)
+set(GRAPHVIZ_STATIC_LIBS TRUE)
+set(GRAPHVIZ_SHARED_LIBS TRUE)
+set(GRAPHVIZ_MODULE_LIBS TRUE)
+set(GRAPHVIZ_INTERFACE_LIBS TRUE)
+set(GRAPHVIZ_OBJECT_LIBS TRUE)
+set(GRAPHVIZ_UNKNOWN_LIBS TRUE)
+set(GRAPHVIZ_CUSTOM_TARGETS TRUE)
+
+# Below are non-defaults
+
+# Render larger and with a nicer font. Default clips bottom of some characters.
+set(GRAPHVIZ_GRAPH_HEADER "node [ fontsize=16; fontname=Helvetica ];")
+
+# Don't show external lib targets
+set(GRAPHVIZ_EXTERNAL_LIBS FALSE)
+
+# Don't generate per-target dot files
+set(GRAPHVIZ_GENERATE_PER_TARGET FALSE)
+
+# Don't generate per-target depender dot files
+set(GRAPHVIZ_GENERATE_DEPENDERS FALSE)
+
+# List of targets to ignore
+set(GRAPHVIZ_IGNORE_TARGETS
+    core_tables
+    enum_string_mapping
+    extinst_tables
+    gmock_main
+    gtest_main
+    spirv-*
+    SPIRV-Tools-*
+    spv-*
+)

tools/cmake_generate_graphviz/cmake_generate_graphviz.bat

+@echo on
+setlocal enabledelayedexpansion
+pushd %~dp0
+
+where /q cmake.exe
+if %errorlevel% neq 0 (
+    echo "CMake not found. Please install it from https://cmake.org/"
+    exit /b 1
+)
+
+where /q dot.exe
+if %errorlevel% neq 0 (
+    echo "GraphViz (dot.exe) not found. Please install it from https://graphviz.gitlab.io/"
+    exit /b 1
+)
+
+set cmake_binary_dir=%1
+
+if "%cmake_binary_dir%" == "" (
+    set cmake_binary_dir=..\..\build
+)
+
+rem Copy options to binary dir
+copy /y CMakeGraphVizOptions.cmake "%cmake_binary_dir%\"
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+rem Run cmake commands from the binary dir
+pushd %cmake_binary_dir%
+
+cmake --graphviz=SwiftShader.dot ..
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+dot -Tpng -o SwiftShader.png SwiftShader.dot
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+rem Open the file
+start SwiftShader.png
+
+popd
+popd

tools/cmake_generate_graphviz/cmake_generate_graphviz.sh

+#!/bin/bash
+
+set -e # Fail on any error.
+set -x # Display commands being run.
+
+pushd `dirname $0`
+
+if ! [ -x "$(command -v cmake)" ]; then
+  echo 'cmake is not found. Please install it (e.g. sudo apt install cmake)' >&2
+  exit 1
+fi
+
+if ! [ -x "$(command -v dot)" ]; then
+  echo 'graphviz (dot) is not found. Please install it (e.g. sudo apt install graphviz)' >&2
+  exit 1
+fi
+
+cmake_binary_dir=$1
+
+if [[ -z "${cmake_binary_dir}" ]]; then
+  cmake_binary_dir="../../build"
+fi
+
+cp ./CMakeGraphVizOptions.cmake ${cmake_binary_dir}/
+
+pushd ${cmake_binary_dir}
+
+cmake --graphviz=SwiftShader.dot ..
+dot -Tpng -o SwiftShader.png SwiftShader.dot
+
+if [ "$(uname)" == "Darwin" ]; then
+  open SwiftShader.png
+else
+  xdg-open SwiftShader.png &>/dev/null &
+fi
+
+popd
+popd