Modify the linker script to move some code into flash, enable -mtext-section-literals

2025-07-01 03:26:58 +03:00 · 2014-12-02 00:46:57 +03:00
parent 03f35e44f0
commit 2d9c5d8297
12 changed files with 33 additions and 79 deletions
--- a/cores/esp8266/core_esp8266_main.cpp
+++ b/cores/esp8266/core_esp8266_main.cpp
@ -0,0 +1,125 @@
+/*
+  main.cpp - Main loop for Arduino sketches
+  Copyright (c) 2005-2013 Arduino Team.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+//This may be used to change user task stack size:
+//#define CONT_STACKSIZE 4096
+
+#include <Arduino.h>
+extern "C" {
+#include "ets_sys.h"
+#include "os_type.h"
+#include "osapi.h"
+#include "mem.h"
+#include "user_interface.h"
+#include "cont.h"
+}
+#define LOOP_TASK_PRIORITY 0
+#define LOOP_QUEUE_SIZE    1
+
+int atexit(void (*func)()) { return 0; }
+
+void initVariant() __attribute__((weak));
+void initVariant() { }
+
+extern void loop();
+extern void setup();
+
+extern void (*__init_array_start)(void);
+extern void (*__init_array_end)(void);
+
+static cont_t g_cont;
+static os_event_t g_loop_queue[LOOP_QUEUE_SIZE];
+
+extern "C" void abort()
+{
+    while(1){}
+}
+
+extern "C" void esp_yield()
+{
+    cont_yield(&g_cont);
+}
+
+extern "C" void esp_schedule()
+{
+    system_os_post(LOOP_TASK_PRIORITY, 0, 0);
+}
+
+extern "C" void __yield() 
+{
+    esp_schedule();
+    esp_yield();
+}
+extern "C" void yield(void) __attribute__ ((weak, alias("__yield")));
+
+
+static void loop_wrapper()
+{
+    static bool setup_done = false;
+    if (!setup_done)
+    {
+        setup();
+        setup_done = true;
+    }
+    loop();
+    esp_schedule();
+}
+
+static void loop_task(os_event_t *events)
+{
+    cont_run(&g_cont, &loop_wrapper);
+    if (cont_check(&g_cont) != 0)
+    {
+        abort();
+    }
+}
+
+static void do_global_ctors(void)
+{
+    void (**p)(void);
+    for (p = &__init_array_start; p != &__init_array_end; ++p)
+            (*p)();
+}
+
+void init_done()
+{
+    do_global_ctors();
+    esp_schedule();
+}
+
+extern "C" {
+void user_init(void)
+{
+    uart_div_modify(0, UART_CLK_FREQ / (115200));
+
+    init();
+
+    initVariant();
+
+    cont_init(&g_cont);
+
+    system_os_task( loop_task,
+                    LOOP_TASK_PRIORITY,
+                    g_loop_queue,
+                    LOOP_QUEUE_SIZE);
+
+    system_init_done_cb(&init_done);
+}
+}
+