Re: Protected Objects and Interrupt Handlers

[Simon Wright <simon@pushface.org>]

Tero Koskinen <tero.koskinen@iki.fi> writes:

> For example in the normal case, you can have all the startup code in C
> (or in Ada, which is then exported to C)

Actually, very little even needs exporting to C! I had one that I've
given convention Asm (it's invoked by the linker script), but I'm not at
all sure it needs it.

Mind you,

   procedure Program_Initialization
   with
     Export,
     Convention => Asm,
     External_Name => "program_initialization",
     No_Return;
   pragma Machine_Attribute (Program_Initialization, "naked");

   procedure Program_Initialization is
   begin
      --  _estack: the first address after the top of stack space
      System.Machine_Code.Asm ("ldr sp, =_estack", Volatile => True);
      Complete_Program_Initialization;
   end Program_Initialization;

probably isn't going to cause much trouble anyway.