wip: c33

Author: facchinm

cores/arduino/main.cpp

@@ -5,6 +5,7 @@
  */
 
 #include "Arduino.h"
+#include "zephyr/kernel.h"
 #include <cstdint>
 #ifdef CONFIG_LLEXT
 #include <zephyr/llext/symbol.h>
@@ -68,7 +69,7 @@ static void __libc_init_array (void)
     __init_array_start[i] ();
 }
 
-extern "C" __attribute__((section(".entry_point"), used)) void entry_point(k_thread_stack_t* stack, size_t stack_size) {
+extern "C" __attribute__((section(".entry_point"), used)) void entry_point(struct k_heap* stack, size_t stack_size) {
   // copy .data in the right place
   // .bss should already be in the right place
   // call constructors
@@ -77,7 +78,15 @@ extern "C" __attribute__((section(".entry_point"), used)) void entry_point(k_thr
   extern uintptr_t _edata;
   extern uintptr_t _sbss;
   extern uintptr_t _ebss;
+  extern uintptr_t __heap_start;
+  extern uintptr_t __heap_end;
   //__asm volatile ("cpsie i");
+
+  const size_t alignment = 4096;
+  printk("Heap end: %p\n", &__heap_end);
+  printk("Heap start: %p\n", &__heap_start);
+  // __heap_start = (__heap_start + (alignment - 1)) & ~(alignment - 1);
+
   memcpy(&_sdata, &_sidata, &_edata - &_sdata);
   memset(&_sbss, 0, &_ebss - &_sbss);
   __libc_init_array();