/*
 * Copyright 2007-2011, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */

// This file is used to get C structure offsets into assembly code.
// The build system assembles the file and processes the output to create
// a header file with macro definitions, that can be included from assembly
// code.


#include <computed_asm_macros.h>

#include <arch_cpu.h>
#include <cpu.h>
#include <ksignal.h>
#include <ksyscalls.h>
#include <thread_types.h>


#define DEFINE_MACRO(macro, value) DEFINE_COMPUTED_ASM_MACRO(macro, value)

#define DEFINE_OFFSET_MACRO(prefix, structure, member) \
    DEFINE_MACRO(prefix##_##member, offsetof(struct structure, member));

#define DEFINE_SIZEOF_MACRO(prefix, structure) \
    DEFINE_MACRO(prefix##_sizeof, sizeof(struct structure));


void
dummy()
{
        // struct cpu_ent
        DEFINE_OFFSET_MACRO(CPU_ENT, cpu_ent, fault_handler);
        DEFINE_OFFSET_MACRO(CPU_ENT, cpu_ent, fault_handler_stack_pointer);

        // struct Thread
        DEFINE_OFFSET_MACRO(THREAD, Thread, time_lock);
        DEFINE_OFFSET_MACRO(THREAD, Thread, kernel_time);
        DEFINE_OFFSET_MACRO(THREAD, Thread, user_time);
        DEFINE_OFFSET_MACRO(THREAD, Thread, last_time);
        DEFINE_OFFSET_MACRO(THREAD, Thread, in_kernel);
        DEFINE_OFFSET_MACRO(THREAD, Thread, flags);
        DEFINE_OFFSET_MACRO(THREAD, Thread, kernel_stack_top);
        DEFINE_OFFSET_MACRO(THREAD, Thread, fault_handler);

        // struct iframe
        DEFINE_SIZEOF_MACRO(IFRAME, iframe);
        DEFINE_OFFSET_MACRO(IFRAME, iframe, pc);
        DEFINE_OFFSET_MACRO(IFRAME, iframe, usr_sp);
        DEFINE_OFFSET_MACRO(IFRAME, iframe, usr_lr);

        // struct signal_frame_data
        DEFINE_SIZEOF_MACRO(SIGNAL_FRAME_DATA, signal_frame_data);
        DEFINE_OFFSET_MACRO(SIGNAL_FRAME_DATA, signal_frame_data, info);
        DEFINE_OFFSET_MACRO(SIGNAL_FRAME_DATA, signal_frame_data, context);
        DEFINE_OFFSET_MACRO(SIGNAL_FRAME_DATA, signal_frame_data, user_data);
        DEFINE_OFFSET_MACRO(SIGNAL_FRAME_DATA, signal_frame_data, handler);

        // struct ucontext_t
        DEFINE_OFFSET_MACRO(UCONTEXT_T, __ucontext_t, uc_mcontext);

        // struct siginfo_t
        DEFINE_OFFSET_MACRO(SIGINFO_T, __siginfo_t, si_signo);
}