#
# Copyright (C) 2009 Oracle Corporation
#
# This file is part of VirtualBox Open Source Edition (OSE), as
# available from http://www.virtualbox.org. This file is free software;
# you can redistribute it and/or modify it under the terms of the GNU
# General Public License (GPL) as published by the Free Software
# Foundation, in version 2 as it comes in the "COPYING" file of the
# VirtualBox OSE distribution. VirtualBox OSE is distributed in the
# hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
#

import sys

import apiutil


def GenerateEntrypoints():

    #apiutil.CopyrightC()

    # Get sorted list of dispatched functions.
    # The order is very important - it must match cr_opcodes.h
    # and spu_dispatch_table.h
    print '%include "iprt/asmdefs.mac"'
    print ""
    print "%ifdef RT_ARCH_AMD64"
    print "extern glim"
    print "%else ; X86"
    print "extern glim"
    print "%endif"
    print ""

    keys = apiutil.GetDispatchedFunctions(sys.argv[1]+"/APIspec.txt")

    for index in range(len(keys)):
        func_name = keys[index]
        if apiutil.Category(func_name) == "Chromium":
            continue
        if apiutil.Category(func_name) == "VBox":
            continue

        print "BEGINPROC_EXPORTED gl%s" % func_name
        print "%ifdef RT_ARCH_AMD64"
        print "\tjmp \t[glim+%d wrt rip wrt ..gotpcrel]" % (8*index)
        print "%else ; X86"
        print "\tjmp \t[glim+%d wrt ..gotpc]" % (4*index)
        print "%endif"
        print "ENDPROC gl%s" % func_name
        print ""


    print ';'
    print '; Aliases'
    print ';'

    # Now loop over all the functions and take care of any aliases
    allkeys = apiutil.GetAllFunctions(sys.argv[1]+"/APIspec.txt")
    for func_name in allkeys:
        if "omit" in apiutil.ChromiumProps(func_name):
            continue

        if func_name in keys:
            # we already processed this function earlier
            continue

        # alias is the function we're aliasing
        alias = apiutil.Alias(func_name)
        if alias:
            # this dict lookup should never fail (raise an exception)!
            index = keys.index(alias)
            print "BEGINPROC_EXPORTED gl%s" % func_name
            print "%ifdef RT_ARCH_AMD64"
            print "\tjmp \t[glim+%d wrt rip wrt ..gotpcrel]" % (8*index)
            print "%else ; X86"
            print "\tjmp \t[glim+%d wrt ..gotpc]" % (4*index)
            print "%endif"
            print "ENDPROC gl%s" % func_name
            print ""


    print ';'
    print '; No-op stubs'
    print ';'

    # Now generate no-op stub functions
    for func_name in allkeys:
        if "stub" in apiutil.ChromiumProps(func_name):
            print "BEGINPROC_EXPORTED gl%s" % func_name
            print "\tleave"
            print "\tret"
            print "ENDPROC gl%s" % func_name
            print ""


GenerateEntrypoints()