esp32s3: fix memory section overlap

Author: cjpeterson

targets/esp32s3.ld

@@ -19,6 +19,16 @@ ENTRY(call_start_cpu0)
 
 SECTIONS
 {
+    /* Put the stack at the bottom of DRAM, so that the application will
+     * crash on stack overflow instead of silently corrupting memory.
+     * See: http://blog.japaric.io/stack-overflow-protection/ */
+    .stack (NOLOAD) :
+    {
+        . = ALIGN(16);
+        . += _stack_size;
+        _stack_top = .;
+    } >DRAM
+
     /* Constant literals and code. Loaded into IRAM for now. Eventually, most
      * code should be executed directly from flash.
      * Note that literals must be before code for the l32r instruction to work.
@@ -27,7 +37,7 @@ SECTIONS
 {
     *(.literal.call_start_cpu0)
     *(.text.call_start_cpu0)
-} >IRAM
+} >IRAM AT >DRAM
 
 /* All other code and literals */
 .text : ALIGN(4)
@@ -36,17 +46,7 @@ SECTIONS
     *(.literal.* .text.*)
     *(.text)
     *(.text.*)
-} >IRAM
-
-    /* Put the stack at the bottom of DRAM, so that the application will
-     * crash on stack overflow instead of silently corrupting memory.
-     * See: http://blog.japaric.io/stack-overflow-protection/ */
-    .stack (NOLOAD) :
-    {
-        . = ALIGN(16);
-        . += _stack_size;
-        _stack_top = .;
-    } >DRAM
+} >IRAM AT >DRAM
 
     /* Constant global variables.
      * They are loaded in DRAM for ease of use. Eventually they should be stored