Merge branch 'fix/fix_enter_first_task_error' into 'master'

Fix entering first stack cover wrong memory

See merge request sdk/ESP8266_RTOS_SDK!529

components/freertos/port/esp8266/include/freertos/portmacro.h

@@ -236,6 +236,8 @@ bool interrupt_is_disable(void);
 /* Get tick rate per second */
 uint32_t xPortGetTickRateHz(void);
 
+void _xt_enter_first_task(void);
+
 #ifdef __cplusplus
 }
 #endif

components/freertos/port/esp8266/os_cpu_a.S

@@ -444,3 +444,26 @@ _xt_clear_ints:
 
     RET(16)
 
+
+    .section    .text._xt_enter_first_task, "ax"
+    .globl      _xt_enter_first_task
+    .type       _xt_enter_first_task,   @function
+    .align      4
+_xt_enter_first_task:
+    movi    sp, pxCurrentTCB
+    l32i    sp, sp, 0
+    l32i    sp,	sp, 0
+
+    movi    a14, pxCurrentTCB
+    l32i    a14, a14, 0
+    addi    a15, sp, XT_STK_FRMSZ
+    s32i    a15, a14 ,0
+
+    movi    a0, _xt_context_restore
+    callx0  a0
+
+    l32i    a14, sp, XT_STK_A14
+    l32i    a15, sp, XT_STK_A15
+
+    l32i    a0, sp, XT_STK_EXIT
+    ret

components/freertos/port/esp8266/port.c

@@ -210,7 +210,7 @@ portBASE_TYPE xPortStartScheduler(void)
     vTaskSwitchContext();
 
     /* Restore the context of the first task that is going to run. */
-    XT_RTOS_INT_EXIT();
+    _xt_enter_first_task();
 
     /* Should not get here as the tasks are now running! */
     return pdTRUE;