Modernize setting link map linker flags

3d-viewer/3d_cache/sg/CMakeLists.txt

@@ -91,7 +91,7 @@ endif()
 unset( S3DSG_VERSION_FILE CACHE )
 
 # Define a flag to expose the appropriate EXPORT macro at build time
-target_compile_definitions( kicad_3dsg PRIVATE -DCOMPILE_SGLIB )
+target_compile_definitions( kicad_3dsg PRIVATE COMPILE_SGLIB )
 
 target_link_libraries( kicad_3dsg ${wxWidgets_LIBRARIES} )
 
@@ -108,4 +108,4 @@ install( TARGETS
 if( KICAD_WIN32_INSTALL_PDBS )
     # Get the PDBs to copy over for MSVC
     install(FILES $<TARGET_PDB_FILE:kicad_3dsg> DESTINATION ${KICAD_BIN})
-endif()
+endif()

CMakeLists.txt

@@ -53,6 +53,15 @@ set( CMAKE_EXPORT_COMPILE_COMMANDS ON )
 set( KICAD_CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" )
 set( CMAKE_MODULE_PATH       "${KICAD_CMAKE_MODULE_PATH}" )
 
+
+# Create a flag to identify the non-Apple unix systems
+if( UNIX AND NOT APPLE )
+    set( UNIX_NOT_APPLE ON )
+else()
+    set( UNIX_NOT_APPLE OFF )
+endif()
+
+
 #
 # KiCad build options should be added below.
 #
@@ -175,6 +184,13 @@ cmake_dependent_option( KICAD_WIN32_BUILD_PARALLEL_CL_MP
     OFF "WIN32"
     OFF )
 
+# Advanced option to make link maps (only available on linux)
+cmake_dependent_option( KICAD_MAKE_LINK_MAPS
+    "Create link maps for artifacts"
+    ON "UNIX_NOT_APPLE"
+    OFF )
+mark_as_advanced( KICAD_MAKE_LINK_MAPS )
+
 ####################################
 # Debugging/profiling
 ####################################
@@ -967,17 +983,6 @@ add_subdirectory( doxygen )
 configure_file( ${PROJECT_SOURCE_DIR}/cmake/config.h.cmake
     ${CMAKE_BINARY_DIR}/config.h )
 
-###
-# Generate Map file
-###
-if( KICAD_MAKE_LINK_MAPS )
-    # Currently only works on linux/gcc
-    if( UNIX AND NOT APPLE )
-        set( MAKE_LINK_MAPS true )
-    else()
-        set( MAKE_LINK_MAPS false )
-    endif()
-endif()
 
 #================================================
 # "make uninstall" rules

cvpcb/CMakeLists.txt

@@ -94,10 +94,9 @@ set_source_files_properties( cvpcb.cpp PROPERTIES
     COMPILE_DEFINITIONS     "BUILD_KIWAY_DLL;COMPILING_DLL"
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( cvpcb_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=_cvpcb.kiface.map" )
-endif()
+target_link_options( cvpcb_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=_cvpcb.kiface.map>
+    )
 
 # these 2 binaries are a matched set, keep them together:
 if( APPLE )

eeschema/CMakeLists.txt

@@ -525,15 +525,13 @@ set_source_files_properties( eeschema.cpp PROPERTIES
 # if building eeschema, then also build eeschema_kiface if out of date.
 add_dependencies( eeschema eeschema_kiface )
 
-if( MAKE_LINK_MAPS )
-    # generate link map with cross reference
-    set_target_properties( eeschema_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=${KIFACE_PREFIX}eeschema${KIFACE_SUFFIX}.map"
-        )
-    set_target_properties( eeschema PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=eeschema.map"
-        )
-endif()
+# Generate link map with cross reference
+target_link_options( eeschema_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=${KIFACE_PREFIX}eeschema${KIFACE_SUFFIX}.map>
+    )
+target_link_options( eeschema PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=eeschema.map>
+    )
 
 # these 2 binaries are a matched set, keep them together:
 if( APPLE )

gerbview/CMakeLists.txt

@@ -120,11 +120,9 @@ target_include_directories( gerbview PRIVATE
     $<TARGET_PROPERTY:thread-pool,INTERFACE_INCLUDE_DIRECTORIES>
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( gerbview PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=gerbview.map" )
-endif()
-
+target_link_options( gerbview PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=gerbview.map>
+    )
 
 # The objects for the main gerbview program
 add_library( gerbview_kiface_objects OBJECT
@@ -164,10 +162,9 @@ set_source_files_properties( gerbview.cpp PROPERTIES
     COMPILE_DEFINITIONS     "BUILD_KIWAY_DLL;COMPILING_DLL"
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( gerbview_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=_gerbview.kiface.map" )
-endif()
+target_link_options( gerbview_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=_gerbview.kiface.map>
+    )
 
 # if building gerbview, then also build gerbview_kiface if out of date.
 add_dependencies( gerbview gerbview_kiface )

pagelayout_editor/CMakeLists.txt

@@ -88,10 +88,9 @@ target_link_libraries( pl_editor
     ${wxWidgets_LIBRARIES}
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( pl_editor PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=pl_editor.map" )
-endif()
+target_link_options( pl_editor PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=pl_editor.map>
+    )
 
 # the main pl_editor program, in DSO form.
 add_library( pl_editor_kiface MODULE
@@ -120,10 +119,9 @@ set_source_files_properties( pl_editor.cpp PROPERTIES
     COMPILE_DEFINITIONS     "BUILD_KIWAY_DLL;COMPILING_DLL"
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( pl_editor_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=_pl_editor.kiface.map" )
-endif()
+target_link_options( pl_editor_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=_pl_editor.kiface.map>
+    )
 
 # if building pl_editor, then also build pl_editor_kiface if out of date.
 add_dependencies( pl_editor pl_editor_kiface )

pcb_calculator/CMakeLists.txt

@@ -92,10 +92,9 @@ target_link_libraries( pcb_calculator
     ${wxWidgets_LIBRARIES}
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( pcb_calculator PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=pcb_calculator.map" )
-endif()
+target_link_options( pcb_calculator PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=pcb_calculator.map>
+    )
 
 # the main pcb_calculator program, in DSO form.
 add_library( pcb_calculator_kiface MODULE
@@ -118,10 +117,9 @@ set_source_files_properties( pcb_calculator.cpp PROPERTIES
     COMPILE_DEFINITIONS     "BUILD_KIWAY_DLL;COMPILING_DLL"
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( pcb_calculator_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=_pcb_calculator.kiface.map" )
-endif()
+target_link_options( pcb_calculator_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=_pcb_calculator.kiface.map>
+    )
 
 # if building pcb_calculator, then also build pcb_calculator_kiface if out of date.
 add_dependencies( pcb_calculator pcb_calculator_kiface )

pcbnew/CMakeLists.txt

@@ -1,13 +1,3 @@
-
-if( UNIX AND NOT APPLE )
-    # Setting this ON slows down linking and is a advanced (=hidden) developer option for
-    # linux, not a user option.
-    option( PCBNEW_LINK_MAPS
-        "Developer: create linker map files for pcbnew binaries, not typical for Debug builds"
-        )
-    mark_as_advanced( PCBNEW_LINK_MAPS )
-endif()
-
 add_compile_definitions( PCBNEW )
 
 add_subdirectory(connectivity)
@@ -613,10 +603,9 @@ target_link_libraries( pcbnew
     ${wxWidgets_LIBRARIES}
     )
 
-if( PCBNEW_LINK_MAPS )
-    set_target_properties( pcbnew PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=pcbnew.map" )
-endif()
+target_link_options( pcbnew PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=pcbnew.map>
+    )
 
 # the main pcbnew program, in DSO form.
 add_library( pcbnew_kiface_objects OBJECT
@@ -707,14 +696,9 @@ set_source_files_properties( pcbnew.cpp PROPERTIES
     COMPILE_DEFINITIONS     "BUILD_KIWAY_DLL;COMPILING_DLL"
     )
 
-if( PCBNEW_LINK_MAPS )
-    set_target_properties( pcbnew_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=_pcbnew.kiface.map"
-        )
-    set_target_properties( pcbnew PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=pcbnew.map"
-        )
-endif()
+target_link_options( pcbnew_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=_pcbnew.kiface.map>
+    )
 
 # if building pcbnew, then also build pcbnew_kiface if out of date.
 add_dependencies( pcbnew pcbnew_kiface )

scripting/CMakeLists.txt

@@ -61,10 +61,9 @@ set_target_properties( scripting_kiface PROPERTIES
     SUFFIX          ${KIFACE_SUFFIX}
     )
 
-if( MAKE_LINK_MAPS )
-    set_target_properties( scripting_kiface PROPERTIES
-        LINK_FLAGS "-Wl,-cref,-Map=_scripting.kiface.map" )
-endif()
+target_link_options( scripting_kiface PRIVATE
+    $<$<BOOL:${KICAD_MAKE_LINK_MAPS}>:-Wl,-cref,-Map=_scripting.kiface.map>
+    )
 
 if( APPLE )
     set_target_properties( scripting_kiface PROPERTIES