feat(log): added option for placing log api in flash

components/esp_rom/Kconfig

@@ -0,0 +1,7 @@
+menu "ESP-ROM"
+
+    config ESP_ROM_PRINT_IN_IRAM
+        bool "Place print functions in IRAM" if SPI_FLASH_AUTO_SUSPEND
+        default y
+
+endmenu

components/esp_rom/linker.lf

@@ -2,8 +2,9 @@
 archive: libesp_rom.a
 entries:
     esp_rom_sys (noflash)
-    esp_rom_print (noflash)
     esp_rom_spiflash (noflash)
+    if ESP_ROM_PRINT_IN_IRAM = y:
+        esp_rom_print (noflash)
     if ESP_ROM_HAS_FLASH_COUNT_PAGES_BUG = y:
         esp_rom_cache_esp32s2_esp32s3 (noflash)
     if ESP_ROM_HAS_CACHE_WRITEBACK_BUG = y:

components/log/Kconfig

@@ -50,4 +50,9 @@ menu "Log"
 
     orsource "./Kconfig.format"
 
+    config LOG_IN_IRAM
+        bool "Place logging functions in IRAM" if SPI_FLASH_AUTO_SUSPEND
+        default y
+        select ESP_ROM_PRINT_IN_IRAM
+
 endmenu

components/log/linker.lf

@@ -1,15 +1,16 @@
 [mapping:log]
 archive: liblog.a
 entries:
-    log_write:esp_log_write (noflash)
-    log_write:esp_log_writev (noflash)
-    tag_log_level:esp_log_level_get_timeout (noflash)
-    log_timestamp:esp_log_timestamp (noflash)
-    log_timestamp:esp_log_early_timestamp (noflash)
-    log_lock (noflash)
-    util (noflash)
-    log_timestamp_common (noflash)
-    log_print (noflash)
-    log (noflash)
-    if LOG_MASTER_LEVEL = y:
-        log_level: esp_log_get_level_master (noflash)
+    if LOG_IN_IRAM = y:
+        log_write:esp_log_write (noflash)
+        log_write:esp_log_writev (noflash)
+        tag_log_level:esp_log_level_get_timeout (noflash)
+        log_timestamp:esp_log_timestamp (noflash)
+        log_timestamp:esp_log_early_timestamp (noflash)
+        log_lock (noflash)
+        util (noflash)
+        log_timestamp_common (noflash)
+        log_print (noflash)
+        log (noflash)
+        if LOG_MASTER_LEVEL = y:
+            log_level: esp_log_get_level_master (noflash)

tools/test_apps/configs/sdkconfig.flash_auto_suspend_iram_reduction

@@ -16,3 +16,5 @@ CONFIG_LIBC_MISC_IN_IRAM=n
 CONFIG_ESP_TIMER_IN_IRAM=n
 CONFIG_SPI_FLASH_PLACE_FUNCTIONS_IN_IRAM=n
 CONFIG_ESP_INTR_IN_IRAM=n
+CONFIG_LOG_IN_IRAM=n
+CONFIG_ESP_ROM_PRINT_IN_IRAM=n