startup: moved init core functions out of iram memory

components/esp_system/linker.lf

@@ -5,7 +5,13 @@ entries:
     panic_handler (noflash)
     reset_reason (noflash)
     system_api:esp_system_abort (noflash)
-
+    startup:do_secondary_init(default)
+    startup:start_cpu0_default(default)
+    startup:do_core_init(default)
+    startup:do_system_init_fn(default)
+    startup:start_cpu_other_cores_default(default)
+    startup:do_global_ctors(default)
+    
     if ESP_CONSOLE_USB_CDC_SUPPORT_ETS_PRINTF:
         usb_console:esp_usb_console_write_char (noflash)
         usb_console:esp_usb_console_write_buf (noflash)

components/esp_system/startup.c

@@ -120,7 +120,7 @@ static IRAM_ATTR void _Unwind_SetNoFunctionContextInstall_Default(unsigned char
 
 static const char* TAG = "cpu_start";
 
-static void IRAM_ATTR do_global_ctors(void)
+static void do_global_ctors(void)
 {
     extern void (*__init_array_start)(void);
     extern void (*__init_array_end)(void);
@@ -140,7 +140,7 @@ static void IRAM_ATTR do_global_ctors(void)
     }
 }
 
-static void IRAM_ATTR do_system_init_fn(void)
+static void do_system_init_fn(void)
 {
     extern esp_system_init_fn_t _esp_system_init_fn_array_start;
     extern esp_system_init_fn_t _esp_system_init_fn_array_end;
@@ -166,7 +166,7 @@ static void IRAM_ATTR start_app_other_cores_default(void)
     }
 }
 
-static void IRAM_ATTR start_cpu_other_cores_default(void)
+static void start_cpu_other_cores_default(void)
 {
     do_system_init_fn();
 
@@ -178,7 +178,7 @@ static void IRAM_ATTR start_cpu_other_cores_default(void)
 }
 #endif
 
-static void IRAM_ATTR do_core_init(void)
+static void do_core_init(void)
 {
     /* Initialize heap allocator. WARNING: This *needs* to happen *after* the app cpu has booted.
        If the heap allocator is initialized first, it will put free memory linked list items into
@@ -277,7 +277,7 @@ static void IRAM_ATTR do_core_init(void)
     assert(flash_ret == ESP_OK);
 }
 
-static void IRAM_ATTR do_secondary_init(void)
+static void do_secondary_init(void)
 {
 #if !CONFIG_ESP_SYSTEM_SINGLE_CORE_MODE
     // The port layer transferred control to this function with other cores 'paused',
@@ -304,7 +304,7 @@ static void IRAM_ATTR do_secondary_init(void)
 #endif
 }
 
-void IRAM_ATTR start_cpu0_default(void)
+void start_cpu0_default(void)
 {
 
     ESP_EARLY_LOGI(TAG, "Pro cpu start user code");

components/freertos/linker.lf

@@ -113,5 +113,6 @@ entries:
         queue: xQueueRemoveFromSet (default)
         queue: xQueueSelectFromSet (default)
     port:start_app(default)
+    port:main_task(default)
     port:start_app_other_cores(default)
-
+    port:xPortStartScheduler(default)