cmake: Remove previously deprecated look-ups

Removes functions that would handle deprecated variables and
functionality from CMake within Zephyr that were deprecated in
Zephyr 3.1 onwards but before 3.7

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>

CMakeLists.txt

@@ -1127,8 +1127,6 @@ elseif(DEFINED BOARD_LINKER_SCRIPT)
   set(LINKER_SCRIPT ${BOARD_LINKER_SCRIPT})
 elseif(DEFINED SOC_LINKER_SCRIPT)
   set(LINKER_SCRIPT ${SOC_LINKER_SCRIPT})
-else()
-  find_package(Deprecated COMPONENTS SEARCHED_LINKER_SCRIPT)
 endif()
 
 if(NOT EXISTS ${LINKER_SCRIPT})

cmake/compiler/gcc/target.cmake

@@ -5,7 +5,6 @@ set_ifndef(C++ g++)
 # Configures CMake for using GCC, this script is re-used by several
 # GCC-based toolchains
 
-find_package(Deprecated COMPONENTS SPARSE)
 find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}${CC} PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
 
 if(${CMAKE_C_COMPILER} STREQUAL CMAKE_C_COMPILER-NOTFOUND)

cmake/modules/FindDeprecated.cmake

@@ -37,58 +37,6 @@ if("${Deprecated_FIND_COMPONENTS}" STREQUAL "")
   message(WARNING "find_package(Deprecated) missing required COMPONENTS keyword")
 endif()
 
-if("CROSS_COMPILE" IN_LIST Deprecated_FIND_COMPONENTS)
-  list(REMOVE_ITEM Deprecated_FIND_COMPONENTS CROSS_COMPILE)
-  # This code was deprecated after Zephyr v3.1.0
-  if(NOT DEFINED ZEPHYR_TOOLCHAIN_VARIANT)
-    set(ZEPHYR_TOOLCHAIN_VARIANT $ENV{ZEPHYR_TOOLCHAIN_VARIANT})
-  endif()
-
-  if(NOT ZEPHYR_TOOLCHAIN_VARIANT AND
-     (CROSS_COMPILE OR (DEFINED ENV{CROSS_COMPILE})))
-      set(ZEPHYR_TOOLCHAIN_VARIANT cross-compile CACHE STRING "Zephyr toolchain variant" FORCE)
-      message(DEPRECATION  "Setting CROSS_COMPILE without setting ZEPHYR_TOOLCHAIN_VARIANT is deprecated."
-                           "Please set ZEPHYR_TOOLCHAIN_VARIANT to 'cross-compile'"
-      )
-  endif()
-endif()
-
-if("SPARSE" IN_LIST Deprecated_FIND_COMPONENTS)
-  list(REMOVE_ITEM Deprecated_FIND_COMPONENTS SPARSE)
-  # This code was deprecated after Zephyr v3.2.0
-  if(SPARSE)
-    message(DEPRECATION
-        "Setting SPARSE='${SPARSE}' is deprecated. "
-        "Please set ZEPHYR_SCA_VARIANT to 'sparse'"
-    )
-    if("${SPARSE}" STREQUAL "y")
-      set_ifndef(ZEPHYR_SCA_VARIANT sparse)
-    endif()
-  endif()
-endif()
-
-if("SOURCES" IN_LIST Deprecated_FIND_COMPONENTS)
-  list(REMOVE_ITEM Deprecated_FIND_COMPONENTS SOURCES)
-  if(SOURCES)
-    message(DEPRECATION
-        "Setting SOURCES prior to calling find_package() for unit tests is deprecated."
-        " To add sources after find_package() use:\n"
-        "    target_sources(testbinary PRIVATE <source-file.c>)")
-  endif()
-endif()
-
-if("PYTHON_PREFER" IN_LIST Deprecated_FIND_COMPONENTS)
-  # This code was deprecated after Zephyr v3.4.0
-  list(REMOVE_ITEM Deprecated_FIND_COMPONENTS PYTHON_PREFER)
-  if(DEFINED PYTHON_PREFER)
-    message(DEPRECATION "'PYTHON_PREFER' variable is deprecated. Please use "
-                        "Python3_EXECUTABLE instead.")
-    if(NOT DEFINED Python3_EXECUTABLE)
-      set(Python3_EXECUTABLE ${PYTHON_PREFER})
-    endif()
-  endif()
-endif()
-
 if("toolchain_ld_base" IN_LIST Deprecated_FIND_COMPONENTS)
   # This code was deprecated after Zephyr v4.0.0
   list(REMOVE_ITEM Deprecated_FIND_COMPONENTS toolchain_ld_base)
@@ -142,23 +90,5 @@ if(NOT "${Deprecated_FIND_COMPONENTS}" STREQUAL "")
                  "${Deprecated_FIND_COMPONENTS}")
 endif()
 
-if("SEARCHED_LINKER_SCRIPT" IN_LIST Deprecated_FIND_COMPONENTS)
-  # This code was deprecated after Zephyr v3.5.0
-  list(REMOVE_ITEM Deprecated_FIND_COMPONENTS SEARCHED_LINKER_SCRIPT)
-
-  # Try a board specific linker file
-  set(LINKER_SCRIPT ${BOARD_DIR}/linker.ld)
-  if(NOT EXISTS ${LINKER_SCRIPT})
-    # If not available, try an SoC specific linker file
-    set(LINKER_SCRIPT ${SOC_FULL_DIR}/linker.ld)
-  endif()
-  message(DEPRECATION
-      "Pre-defined `linker.ld` script is deprecated. Please set "
-      "BOARD_LINKER_SCRIPT or SOC_LINKER_SCRIPT to point to ${LINKER_SCRIPT} "
-      "or one of the Zephyr provided common linker scripts for the ${ARCH} "
-      "architecture."
-  )
-endif()
-
 set(Deprecated_FOUND True)
 set(DEPRECATED_FOUND True)

cmake/modules/FindHostTools.cmake

@@ -48,8 +48,6 @@ if(HostTools_FOUND)
   return()
 endif()
 
-find_package(Deprecated COMPONENTS CROSS_COMPILE)
-
 find_package(Zephyr-sdk 0.16)
 
 # gperf is an optional dependency

cmake/modules/python.cmake

@@ -13,8 +13,6 @@ endif()
 
 set(PYTHON_MINIMUM_REQUIRED 3.10)
 
-find_package(Deprecated COMPONENTS PYTHON_PREFER)
-
 if(NOT DEFINED Python3_EXECUTABLE AND DEFINED WEST_PYTHON)
   set(Python3_EXECUTABLE "${WEST_PYTHON}")
 endif()

cmake/modules/unittest.cmake

@@ -44,8 +44,6 @@ if((NOT DEFINED ZEPHYR_BASE) AND (DEFINED ENV_ZEPHYR_BASE))
   set(ZEPHYR_BASE ${ENV_ZEPHYR_BASE} CACHE PATH "Zephyr base")
 endif()
 
-find_package(Deprecated COMPONENTS SOURCES)
-
 if(NOT SOURCES AND EXISTS main.c)
   set(SOURCES main.c)
 endif()