CMake overhaul

CMakeLists.txt

@@ -4,12 +4,6 @@ project(ctbench)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 set(CMAKE_CXX_STANDARD 20)
 
-# Project options
-option(CTBENCH_ENABLE_TESTING "Enable testing for ctbench components." OFF)
-
-option(CTBENCH_FETCH_LIBRARIES
-       "Fetch libraries instead of using the ones installed locally." OFF)
-
 add_compile_options(
   -Wall
   -Wextra
@@ -19,23 +13,20 @@ add_compile_options(
   -Wdouble-promotion
   -Wshadow)
 
-add_compile_options(-fno-rtti -fno-exceptions)
-
-add_subdirectory(time-trace-wrapper)
-
 # Docs
 if(${PROJECT_IS_TOP_LEVEL})
   add_subdirectory(cmake-doc-extractor)
   include(cmake/docs.cmake)
 endif()
 
-# Exporting time-trace-wrapper exec path to parent scope if needed
-if(NOT ${PROJECT_IS_TOP_LEVEL})
-  set(CTBENCH_TIME_TRACE_WRAPPER_EXEC
-      ${CTBENCH_TIME_TRACE_WRAPPER_EXEC}
-      PARENT_SCOPE)
-endif()
-
+add_subdirectory(ttw)
 add_subdirectory(grapher)
 
-include(benchmarking.cmake)
+export(
+  EXPORT ctbench-targets
+  NAMESPACE ctbench::
+  FILE CtbenchTargets.cmake)
+
+install(EXPORT ctbench-targets DESTINATION ctbench)
+
+include(cmake/benchmarking.cmake)

benchmarking.cmake → cmake/benchmarking.cmake

@@ -1,31 +1,82 @@
+#! # CMake documentation
+
 ## =============================================================================
-#! # CMake API
-#!
-#! Functions for automated benchmark declarations.
-#!
+#@
+#@ ## Internal API
+#@
+## =============================================================================
+
+# Setting executable/target prefix.
+# ctbench_FOUND being false means ctbench was imported inside of the tree.
+# ctbench_FOUND being true means ctbench found through find_package.
+if(NOT ctbench_FOUND)
+  set(GRAPHER_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/grapher/ PARENT_SCOPE)
+  set(TTW_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/ttw/ PARENT_SCOPE)
+else()
+  set(GRAPHER_PREFIX ctbench:: PARENT_SCOPE)
+  set(TTW_PREFIX ctbench:: PARENT_SCOPE)
+endif()
+
+## =============================================================================
+#@
+#@ _ctbench_internal_add_compile_benchmark
+#@
+#@ Creates a library target for a file and extracts the compilation time trace
+#@ file.
+#@
+#@ - `target_name`: Name of the benchmark target
+#@ - `output`: Time trace output path
+#@ - `source`: Source file
+#@ - `options`: Options passed to the compiler
+
+function(_ctbench_internal_add_compile_benchmark target_name output source
+         options)
+
+  add_library(${target_name} OBJECT EXCLUDE_FROM_ALL ${source})
+  target_include_directories(${target_name} PUBLIC "../include")
+
+  # Setting ctbench-ttw as a compiler launcher
+  set_target_properties(
+    ${target_name} PROPERTIES CXX_COMPILER_LAUNCHER
+                              "${TTW_PREFIX}ctbench-ttw;${output}")
+
+  if(NOT ctbench_FOUND)
+    add_dependencies(${target_name} ctbench-ttw)
+  endif()
+
+  # Pass benchmark size
+  target_compile_options(${target_name} PRIVATE ${options})
+
+endfunction(_ctbench_internal_add_compile_benchmark)
+
+## =============================================================================
+#@
+#@ ## Public API
+#@
 ## =============================================================================
 
 ## =============================================================================
-#! ## ctbench-graph-all target
+#!
+#! ### ctbench-graph-all target
 #!
 #! `ctbench-graph-all` is a ctbench-provided target to generate all graphs
 #! at once.
-#!
 
 add_custom_target(ctbench-graph-all)
 
-include(cmake/internal.cmake)
+#!
+#! --
 
 ## =============================================================================
-#! ## ctbench_add_benchmark
+#!
+#! ### ctbench_add_benchmark(name source begin end step samples)
 #!
 #! Add a benchmark for a given source, with a given size range.
 #!
 #! - `name`: Name of benchmark
 #! - `source`: Source file
 #! - `begin, end, step`: Iteration parameters
 #! - `samples`: Number of samples per iteration
-#!
 
 function(
   ctbench_add_benchmark
@@ -56,8 +107,12 @@ function(
 
 endfunction(ctbench_add_benchmark)
 
+#!
+#! --
+
 ## =============================================================================
-#! ## ctbench_add_custom_benchmark
+#!
+#! ### ctbench_add_custom_benchmark(name source begin end step iterations generator)
 #!
 #! Add a benchmark for a given source with a given size range
 #! using a custom compile options generator.
@@ -68,7 +123,6 @@ endfunction(ctbench_add_benchmark)
 #! - `iterations`: Number of benchmark iterations for a given size
 #! - `generator`: Compile option generator. Takes a size and an output
 #!                variable name as parameters.
-#!
 
 function(
   ctbench_add_custom_benchmark
@@ -100,24 +154,35 @@ function(
 
 endfunction(ctbench_add_custom_benchmark)
 
+#!
+#! --
+
 ## =============================================================================
-#! ## ctbench_add_graph
+#!
+#! ### ctbench_add_graph(category config benchmarks...)
 #!
 #! Adds a graph target for a set of benchmarks,
 #! and adds the target to ctbench-graph-all.
 #!
 #! - `category`: Name of the category. This is also the name of the graph
 #!               target, and the folder where the graphs will be saved.
 #! - `config`: Config file for plotting
-#! - `benchmarks`: List of benchmark names
-#!
+#! - `benchmarks...`: List of benchmark names
 
 function(ctbench_add_graph category config)
   set(config_path ${CMAKE_CURRENT_SOURCE_DIR}/${config})
   add_custom_target(
     ${category}
-    COMMAND grapher-plot --output=${category} --config=${config_path} ${ARGN}
+    COMMAND ${GRAPHER_PREFIX}ctbench-grapher-plot --output=${category}
+            --config=${config_path} ${ARGN}
     DEPENDS ${config_path} ${ARGN}
     WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
   add_dependencies(ctbench-graph-all ${category})
+
+  if(NOT ctbench_FOUND)
+    add_dependencies(${category} ctbench-grapher-plot)
+  endif()
 endfunction(ctbench_add_graph)
+
+#!
+#! --

cmake/docs.cmake

@@ -17,7 +17,7 @@ include(FetchContent)
 FetchContent_Declare(
   dac_content
   GIT_REPOSITORY https://github.com/jothepro/doxygen-awesome-css.git
-  GIT_TAG v1.6.1
+  GIT_TAG v2.0.3
   GIT_SHALLOW)
 
 FetchContent_GetProperties(dac_content)
@@ -33,8 +33,8 @@ doxygen_add_docs(docs ALL)
 
 add_custom_target(
   extract-api-doc
-  cmake-doc-extractor --input ${CMAKE_SOURCE_DIR}/benchmarking.cmake --output
-  ${CMAKE_SOURCE_DIR}/generated-docs/benchmarking.md
-  DEPENDS ${CMAKE_SOURCE_DIR}/benchmarking.cmake)
+  cmake-doc-extractor --input ${CMAKE_SOURCE_DIR}/cmake/benchmarking.cmake
+  --output ${CMAKE_SOURCE_DIR}/generated-docs/benchmarking.md
+  DEPENDS ${CMAKE_SOURCE_DIR}/cmake/benchmarking.cmake)
 
 add_dependencies(docs extract-api-doc)

grapher/CMakeLists.txt

@@ -1,38 +1,31 @@
-# Creating the grapher library
+# Declaring the grapher library
+
 file(GLOB_RECURSE GRAPHER_SOURCES lib/*.cpp)
 add_library(grapher STATIC ${GRAPHER_SOURCES})
 target_include_directories(grapher PUBLIC include)
 
-if(CTBENCH_FETCH_LIBRARIES)
-  include(cmake/libraries_fetch.cmake)
-else()
-  include(cmake/libraries_local.cmake)
-endif()
-
-# LLVM
+find_package(nlohmann_json 3.9.1 REQUIRED)
+find_package(sciplot REQUIRED)
 find_package(LLVM REQUIRED CONFIG)
+
 llvm_map_components_to_libnames(llvm_libs core support)
-#target_compile_options(grapher PUBLIC -fno-rtti)
-target_link_libraries(grapher PUBLIC ${llvm_libs})
-
-target_compile_options(
-  grapher
-  PUBLIC -Wall
-         -Wextra
-         -Werror
-         -Wnull-dereference
-         -Wold-style-cast
-         -Wdouble-promotion
-         -Wshadow)
-
-# Old libstdc++ compatibility
-target_link_libraries(grapher PUBLIC stdc++fs)
-target_link_libraries(grapher PUBLIC tbb)
-
-# Adding executable subdirectories
-add_subdirectory(grapher-plot)
-add_subdirectory(grapher-utils)
-
-if(CTBENCH_ENABLE_TESTING)
+
+target_link_libraries(grapher PUBLIC nlohmann_json::nlohmann_json
+                                     sciplot::sciplot stdc++fs tbb ${llvm_libs})
+
+target_compile_options(grapher PUBLIC -fno-rtti -fno-exceptions)
+
+# Adding executables
+
+add_executable(ctbench-grapher-plot grapher-plot.cpp)
+target_link_libraries(ctbench-grapher-plot PRIVATE grapher)
+
+add_executable(ctbench-grapher-utils grapher-utils.cpp)
+target_link_libraries(ctbench-grapher-utils PRIVATE grapher)
+
+install(TARGETS ctbench-grapher-plot ctbench-grapher-utils
+        EXPORT ctbench-targets)
+
+if(BUILD_TESTING)
   add_subdirectory(tests)
 endif()