Fixed heap manager and added custom linker script for calling global/static ctors and dtors.

custom.ld

@@ -0,0 +1,48 @@
+/* Define memory regions */
+MEMORY
+{
+    RAM (wxa) : ORIGIN = 0x20000000, LENGTH = 1M /* Adjust these values for your target */
+    ROM (rx)  : ORIGIN = 0x08000000, LENGTH = 512K /* Adjust these values for your target */
+}
+
+/* Define the entry point of the program */
+ENTRY(_start)
+
+SECTIONS
+{
+    /* Place the program code at the beginning of ROM */
+    .text : {
+        *(.text)
+        *(.text*)
+    } > ROM
+
+    /* Initialize data section in ROM, copy to RAM at startup */
+    .data : {
+        *(.data)
+        *(.data*)
+    } > RAM AT > ROM
+
+    /* Uninitialized data section in RAM */
+    .bss : {
+        *(.bss)
+        *(.bss*)
+        *(COMMON)
+    } > RAM
+
+    /* Constructor array section */
+    .init_array : {
+        __start_init_array = .; /* Define the start symbol */
+        KEEP(*(SORT(.init_array.*)))
+        KEEP(*(.init_array))
+        __stop_init_array = .; /* Define the end symbol */
+    } > ROM
+
+    .fini_array : {
+        __start_fini_array = .; /* Define the start symbol for destructors */
+        KEEP(*(SORT(.fini_array.*)))
+        KEEP(*(.fini_array))
+        __stop_fini_array = .; /* Define the end symbol for destructors */
+    } > ROM
+
+  /* Add other sections as needed */
+}