Merge branch 'feature/supplicant_bss_extmem_v4.4' into 'release/v4.4'

WiFi: Add support to move supplicant BSS to external memory (v4.4)

See merge request espressif/esp-idf!28746

components/wpa_supplicant/CMakeLists.txt

@@ -1,3 +1,5 @@
+set(linker_fragments linker.lf)
+
 set(srcs "port/os_xtensa.c"
     "src/ap/ap_config.c"
     "src/ap/ieee802_1x.c"
@@ -180,6 +182,7 @@ idf_component_register(SRCS "${srcs}" ${esp_srcs} "${tls_src}" "${roaming_src}"
                             "${crypto_src}" "${mbo_src}" "${dpp_src}"
                     INCLUDE_DIRS include port/include esp_supplicant/include
                     PRIV_INCLUDE_DIRS src src/utils esp_supplicant/src
+                    LDFRAGMENTS   ${linker_fragments}
                     PRIV_REQUIRES mbedtls esp_timer)
 
 target_compile_options(${COMPONENT_LIB} PRIVATE -Wno-strict-aliasing -Wno-write-strings)

components/wpa_supplicant/linker.lf

@@ -0,0 +1,5 @@
+[mapping:wpa_supplicant]
+archive: libwpa_supplicant.a
+entries:
+    if ESP_ALLOW_BSS_SEG_EXTERNAL_MEMORY = y:
+        * (extram_bss)

docs/en/api-guides/external-ram.rst

@@ -99,7 +99,7 @@ Because some buffers can only be allocated in internal memory, a second configur
 
     Enable this option by checking :ref:`CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY`. This configuration setting is independent of the other three.
 
-    If enabled, a region of the address space starting from {IDF_TARGET_PSRAM_ADDR_START} will be used to store zero-initialized data (BSS segment) from the lwIP, net80211, libpp, and bluedroid ESP-IDF libraries.
+    If enabled, the region of the data virtual address space where the PSRAM is mapped to will be used to store zero-initialized data (BSS segment) from the lwIP, net80211, libpp, wpa_supplicant and bluedroid ESP-IDF libraries.
 
     Additional data can be moved from the internal BSS segment to external RAM by applying the macro ``EXT_RAM_ATTR`` to any static declaration (which is not initialized to a non-zero value).
 

docs/zh_CN/api-guides/external-ram.rst

@@ -96,7 +96,7 @@ ESP-IDF 启动过程中，片外 RAM 被映射到以 {IDF_TARGET_PSRAM_ADDR_STAR
 
    通过检查 :ref:`CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY` 启用该选项，此选项配置与上面三个选项互不影响。
 
-   启用该选项后，从 {IDF_TARGET_PSRAM_ADDR_START} 起始的地址空间将用于存储来自 lwip、net80211、libpp 和 bluedroid ESP-IDF 库中零初始化的数据（BSS 段）。
+   启用该选项后，PSRAM 被映射到的数据虚拟地址空间将用于存储来自 lwip、net80211、libpp, wpa_supplicant 和 bluedroid ESP-IDF 库中零初始化的数据（BSS 段）。
 
    ``EXT_RAM_ATTR`` 宏应用于任何静态声明（未初始化为非零值）之后，可以将附加数据从内部 BSS 段移到片外 RAM。
 
@@ -162,4 +162,4 @@ ESP-IDF 启动过程中，片外 RAM 被映射到以 {IDF_TARGET_PSRAM_ADDR_STAR
     .. include:: inc/external-ram-esp32-notes.rst
 
 .. _ESP32 ECO: https://www.espressif.com/sites/default/files/documentation/eco_and_workarounds_for_bugs_in_esp32_cn.pdf
-.. _ESP32 ECO V3 User Guide: https://www.espressif.com/sites/default/files/documentation/ESP32_ECO_V3_User_Guide__CN.pdf
+.. _ESP32 ECO V3 User Guide: https://www.espressif.com/sites/default/files/documentation/ESP32_ECO_V3_User_Guide__CN.pdf