cpukit/sapi/src: added DEFINE_GDB_PY macro to exinit.c to embed gdb-inline section

cpukit/sapi/src/exinit.c

@@ -61,6 +61,26 @@
 RTEMS_SECTION(".rtemsroset.copyright") const char _Copyright_Notice[] =
   "Copyright (C) 1989, 2021 RTEMS Project and contributors";
 
+/* 
+ * Additional Macro to add custom section (.debug_gdb_scripts) to 
+ * every ELF being built on RTEMS, in order to add auto-loading 
+ * support for Python scripts (specifically, GCC's pretty-printing
+ * scripts), by in-lining the Python script in the section.
+ */
+#define DEFINE_GDB_PY() \
+  asm( \
+    ".pushsection \".debug_gdb_scripts\", \"MS\",@progbits,1\n" \
+    ".byte 4\n" \
+    ".ascii \"gdb.inlined-script\\n\"\n" \
+    ".ascii \"import sys\\n\"\n" \
+    ".ascii \"import os.path\\n\"\n" \
+    ".ascii \"sys.path.append(os.path.join(gdb.PYTHONDIR, 'rtems'))\\n\"\n" \
+    ".ascii \"import rtems.stdcxx as stdcxx\\n\"\n" \
+    ".byte 0\n" \
+    ".popsection\n" \
+   )
+
+
 static Objects_Information *
 _Internal_Objects[ OBJECTS_INTERNAL_CLASSES_LAST + 1 ];
 
@@ -101,6 +121,9 @@ static void rtems_initialize_data_structures(void)
   _Scheduler_Handler_initialization();
 
   _SMP_Handler_initialize();
+
+  /* Macro call to embed section in script for pretty-printing */
+  DEFINE_GDB_PY();
 }
 
 RTEMS_LINKER_ROSET( _Sysinit, rtems_sysinit_item );