build system: removed target component

After refactoring the target components (e.g. esp32) no longer contained any real functionality.
What remained in these components have been moved elsewhere and the component itself deleted from the
build system.

.gitlab/CODEOWNERS

@@ -78,7 +78,6 @@
 /components/cxx/                      @esp-idf-codeowners/system
 /components/driver/                   @esp-idf-codeowners/peripherals
 /components/efuse/                    @esp-idf-codeowners/system
-/components/esp32*/                   @esp-idf-codeowners/system
 /components/esp_adc_cal/              @esp-idf-codeowners/peripherals
 /components/esp_common/               @esp-idf-codeowners/system
 /components/esp_eth/                  @esp-idf-codeowners/network

components/esp32/CMakeLists.txt

@@ -1,13 +0,0 @@
-idf_build_get_property(target IDF_TARGET)
-if(NOT "${target}" STREQUAL "esp32")
-    return()
-endif()
-
-if(NOT BOOTLOADER_BUILD)
-    # [refactor-todo] propagate these requirements for compatibility
-    # remove in the future
-    set(legacy_reqs soc)
-endif()
-
-idf_component_register(REQUIRES "${legacy_reqs}"
-                       REQUIRED_IDF_TARGETS esp32)

components/esp32c2/CMakeLists.txt

@@ -1,13 +0,0 @@
-idf_build_get_property(target IDF_TARGET)
-if(NOT "${target}" STREQUAL "esp32c2")
-    return()
-endif()
-
-if(NOT BOOTLOADER_BUILD)
-    # [refactor-todo] propagate these requirements for compatibility
-    # remove in the future
-    set(legacy_reqs soc)
-endif()
-
-idf_component_register(REQUIRES "${legacy_reqs}"
-                       REQUIRED_IDF_TARGETS esp32c2)

components/esp32c3/CMakeLists.txt

@@ -1,13 +0,0 @@
-idf_build_get_property(target IDF_TARGET)
-if(NOT "${target}" STREQUAL "esp32c3")
-    return()
-endif()
-
-if(NOT BOOTLOADER_BUILD)
-    # [refactor-todo] propagate these requirements for compatibility
-    # remove in the future
-    set(legacy_reqs soc)
-endif()
-
-idf_component_register(REQUIRES "${legacy_reqs}"
-                       REQUIRED_IDF_TARGETS esp32c3)

components/esp32c3/project_include.cmake

@@ -1,5 +0,0 @@
-set(compile_options "-Wno-error=format="
-                    "-nostartfiles"
-                    "-Wno-format")
-
-idf_build_set_property(COMPILE_OPTIONS "${compile_options}" APPEND)

components/esp32h2/CMakeLists.txt

@@ -1,13 +0,0 @@
-idf_build_get_property(target IDF_TARGET)
-if(NOT "${target}" STREQUAL "esp32h2")
-    return()
-endif()
-
-if(NOT BOOTLOADER_BUILD)
-    # [refactor-todo] propagate these requirements for compatibility
-    # remove in the future
-    set(legacy_reqs soc)
-endif()
-
-idf_component_register(REQUIRES "${legacy_reqs}"
-                       REQUIRED_IDF_TARGETS esp32h2)

components/esp32h2/project_include.cmake

@@ -1,5 +0,0 @@
-set(compile_options "-Wno-error=format="
-                    "-nostartfiles"
-                    "-Wno-format")
-
-idf_build_set_property(COMPILE_OPTIONS "${compile_options}" APPEND)

components/esp32s2/CMakeLists.txt

@@ -1,13 +0,0 @@
-idf_build_get_property(target IDF_TARGET)
-if(NOT "${target}" STREQUAL "esp32s2")
-    return()
-endif()
-
-if(NOT BOOTLOADER_BUILD)
-    # [refactor-todo] propagate these requirements for compatibility
-    # remove in the future
-    set(legacy_reqs soc)
-endif()
-
-idf_component_register(REQUIRES "${legacy_reqs}"
-                       REQUIRED_IDF_TARGETS esp32s2)

components/esp32s3/CMakeLists.txt

@@ -1,13 +0,0 @@
-idf_build_get_property(target IDF_TARGET)
-if(NOT "${target}" STREQUAL "esp32s3")
-    return()
-endif()
-
-if(NOT BOOTLOADER_BUILD)
-    # [refactor-todo] propagate these requirements for compatibility
-    # remove in the future
-    set(legacy_reqs soc)
-endif()
-
-idf_component_register(REQUIRES "${legacy_reqs}"
-                       REQUIRED_IDF_TARGETS esp32s3)

components/esp_common/CMakeLists.txt

@@ -11,7 +11,6 @@ list(APPEND srcs "src/esp_err_to_name.c")
 # Note: esp_ipc, esp_pm added as a public requirement to keep compatibility as to be located here.
 idf_component_register(SRCS "${srcs}"
                         INCLUDE_DIRS include
-                        REQUIRES ${target}
                         LDFRAGMENTS "common.lf" "soc.lf")
 
 set_property(TARGET ${COMPONENT_LIB} APPEND PROPERTY LINK_INTERFACE_MULTIPLICITY 4)

components/esp_timer/CMakeLists.txt

@@ -14,4 +14,4 @@ idf_component_register(SRCS "${srcs}"
                     INCLUDE_DIRS include
                     PRIV_INCLUDE_DIRS private_include
                     REQUIRES esp_common
-                    PRIV_REQUIRES soc driver "${target}")
+                    PRIV_REQUIRES soc driver)

components/hal/CMakeLists.txt

@@ -173,7 +173,6 @@ idf_component_register(SRCS ${srcs}
                        INCLUDE_DIRS ${includes}
                        PRIV_INCLUDE_DIRS ${priv_include}
                        REQUIRES soc esp_rom
-                       PRIV_REQUIRES ${target}
                        LDFRAGMENTS linker.lf)
 
 if(CONFIG_HAL_DEFAULT_ASSERTION_LEVEL EQUAL 1)

components/mbedtls/CMakeLists.txt

@@ -252,18 +252,14 @@ if(CONFIG_MBEDTLS_DYNAMIC_BUFFER)
 endif()
 
 set_property(TARGET mbedcrypto APPEND PROPERTY LINK_INTERFACE_LIBRARIES mbedtls)
-set_property(TARGET mbedcrypto APPEND PROPERTY LINK_LIBRARIES idf::driver idf::${target})
+set_property(TARGET mbedcrypto APPEND PROPERTY LINK_LIBRARIES idf::driver)
-set_property(TARGET mbedcrypto APPEND PROPERTY INTERFACE_LINK_LIBRARIES idf::driver idf::${target})
+set_property(TARGET mbedcrypto APPEND PROPERTY INTERFACE_LINK_LIBRARIES idf::driver)
 
 target_link_libraries(${COMPONENT_LIB} ${linkage_type} ${mbedtls_targets})
 
 if(CONFIG_ESP_TLS_USE_DS_PERIPHERAL)
-    # Link target (e.g. esp32s2) library to component library
-    idf_component_get_property(target_lib ${target} COMPONENT_LIB)
-    set_property(TARGET mbedcrypto APPEND PROPERTY INTERFACE_LINK_LIBRARIES $<LINK_ONLY:${target_lib}>)
     # The linker seems to be unable to resolve all the dependencies without increasing this
     set_property(TARGET mbedcrypto APPEND PROPERTY LINK_INTERFACE_MULTIPLICITY 6)
-    target_link_libraries(${COMPONENT_LIB} ${linkage_type} ${target_lib})
 endif()
 
 # Link esp-cryptoauthlib to mbedtls

docs/en/migration-guides/removed-components.rst

@@ -1,6 +1,9 @@
 Removed or deprecated components
 ================================
 
+Components moved to IDF Component Registry
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
 Following components are removed from ESP-IDF and moved to `IDF Component Registry <https://components.espressif.com/>`_:
 
 * `libsodium <https://components.espressif.com/component/espressif/libsodium>`_
@@ -25,8 +28,20 @@ To install libsodium component with the latest version compatible to X.Y accordi
 
 To find out which versions of each component are available, open https://components.espressif.com, search for the component by its name and check the versions listed on the component page.
 
+Deprecated Components
+^^^^^^^^^^^^^^^^^^^^^
+
 Following components are removed since they were deprecated in IDF v4.x
 
 * ``tcpip_adapter`` Please use the :doc:`ESP-NETIF </api-reference/network/esp_netif>` component instead; you can follow the `Migration guide to ESP-NETIF<tcpip-adapter>`
 
 .. note:: OpenSSL-API component is no longer supported. It is not available in the IDF Component Registry, either. Please use :doc:`ESP-TLS </api-reference/protocols/esp_tls>` or :component:`mbedtls` API directly.
+
+The targets components are no longer necessary after refactoring and have been removed:
+
+ * ``esp32``
+ * ``esp32s2``
+ * ``esp32s3``
+ * ``esp32c2``
+ * ``esp32c3``
+ * ``esp32h2``

examples/build_system/cmake/idf_as_lib/CMakeLists.txt

@@ -15,7 +15,7 @@ if("${TARGET}" IN_LIST targets)
                     # although esptool_py does not generate static library,
                     # processing the component is needed for flashing related
                     # targets and file generation
-                    COMPONENTS "${TARGET}" freertos esptool_py
+                    COMPONENTS freertos esptool_py
                     SDKCONFIG ${CMAKE_CURRENT_LIST_DIR}/sdkconfig
                     BUILD_DIR ${CMAKE_BINARY_DIR})
 else()
@@ -33,7 +33,7 @@ add_executable(${elf_file} main.c)
 
 # Link the static libraries to the executable
 if("${TARGET}" IN_LIST targets)
-    target_link_libraries(${elf_file} "idf::${TARGET}" idf::freertos idf::spi_flash)
+    target_link_libraries(${elf_file} idf::freertos idf::spi_flash)
     # Attach additional targets to the executable file for flashing,
     # linker script generation, partition_table generation, etc.
     idf_build_executable(${elf_file})

tools/cmake/build.cmake

@@ -427,7 +427,6 @@ macro(idf_build_process target)
     idf_build_get_property(arch IDF_TARGET_ARCH)
 
     if(NOT "${target}" STREQUAL "linux")
-        idf_build_set_property(__COMPONENT_REQUIRES_COMMON ${target} APPEND)
         idf_build_set_property(__COMPONENT_REQUIRES_COMMON ${arch} APPEND)
     endif()
 

tools/test_apps/system/g1_components/CMakeLists.txt

@@ -16,7 +16,6 @@ project(g1_components)
 
 set(extra_allowed_components
     ${CONFIG_IDF_TARGET_ARCH}
-    ${CONFIG_IDF_TARGET}
 )
 
 # These components are currently included into "G1" build, but shouldn't.