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#!/usr/bin/env python

# (C) Copyright IBM Corporation 2004

# All Rights Reserved.

#

# Permission is hereby granted, free of charge, to any person obtaining a

# copy of this software and associated documentation files (the "Software"),

# to deal in the Software without restriction, including without limitation

# on the rights to use, copy, modify, merge, publish, distribute, sub

# license, and/or sell copies of the Software, and to permit persons to whom

# the Software is furnished to do so, subject to the following conditions:

#

# The above copyright notice and this permission notice (including the next

# paragraph) shall be included in all copies or substantial portions of the

# Software.

#

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL

# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

# IN THE SOFTWARE.

#

# Authors:

#    Ian Romanick 

import license

import gl_XML, glX_XML

import sys, getopt

class PrintGenericStubs(gl_XML.gl_print_base):

    def __init__(self):

        gl_XML.gl_print_base.__init__(self)

        self.name = "gl_SPARC_asm.py (from Mesa)"

        self.license = license.bsd_license_template % ( \

"""Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.

(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")

    def printRealHeader(self):

        print '#ifdef __arch64__'

        print '#define GL_OFF(N)\t((N) * 8)'

        print '#define GL_LL\t\tldx'

        print '#define GL_TIE_LD(SYM)\t%tie_ldx(SYM)'

        print '#define GL_STACK_SIZE\t128'

        print '#else'

        print '#define GL_OFF(N)\t((N) * 4)'

        print '#define GL_LL\t\tld'

        print '#define GL_TIE_LD(SYM)\t%tie_ld(SYM)'

        print '#define GL_STACK_SIZE\t64'

        print '#endif'

        print ''

        print '#define GLOBL_FN(x) .globl x ; .type x, @function'

        print '#define HIDDEN(x) .hidden x'

        print ''

        print '\t.register %g2, #scratch'

        print '\t.register %g3, #scratch'

        print ''

        print '\t.text'

        print ''

        print '\tGLOBL_FN(__glapi_sparc_icache_flush)'

        print '\tHIDDEN(__glapi_sparc_icache_flush)'

        print '\t.type\t__glapi_sparc_icache_flush, @function'

        print '__glapi_sparc_icache_flush: /* %o0 = insn_addr */'

        print '\tflush\t%o0'

        print '\tretl'

        print '\t nop'

        print ''

        print '\t.align\t32'

        print ''

        print '\t.type\t__glapi_sparc_get_pc, @function'

        print '__glapi_sparc_get_pc:'

        print '\tretl'

        print '\t add\t%o7, %g2, %g2'

        print '\t.size\t__glapi_sparc_get_pc, .-__glapi_sparc_get_pc'

        print ''

        print '#ifdef GLX_USE_TLS'

        print ''

        print '\tGLOBL_FN(__glapi_sparc_get_dispatch)'

        print '\tHIDDEN(__glapi_sparc_get_dispatch)'

        print '__glapi_sparc_get_dispatch:'

        print '\tmov\t%o7, %g1'

        print '\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2'

        print '\tcall\t__glapi_sparc_get_pc'

        print '\tadd\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2'

        print '\tmov\t%g1, %o7'

        print '\tsethi\t%tie_hi22(_glapi_tls_Dispatch), %g1'

        print '\tadd\t%g1, %tie_lo10(_glapi_tls_Dispatch), %g1'

        print '\tGL_LL\t[%g2 + %g1], %g2, GL_TIE_LD(_glapi_tls_Dispatch)'

        print '\tretl'

        print '\t mov\t%g2, %o0'

        print ''

        print '\t.data'

        print '\t.align\t32'

        print ''

        print '\t/* --> sethi %hi(_glapi_tls_Dispatch), %g1 */'

        print '\t/* --> or %g1, %lo(_glapi_tls_Dispatch), %g1 */'

        print '\tGLOBL_FN(__glapi_sparc_tls_stub)'

        print '\tHIDDEN(__glapi_sparc_tls_stub)'

        print '__glapi_sparc_tls_stub: /* Call offset in %g3 */'

        print '\tmov\t%o7, %g1'

        print '\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2'

        print '\tcall\t__glapi_sparc_get_pc'

        print '\tadd\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2'

        print '\tmov\t%g1, %o7'

        print '\tsrl\t%g3, 10, %g3'

        print '\tsethi\t%tie_hi22(_glapi_tls_Dispatch), %g1'

        print '\tadd\t%g1, %tie_lo10(_glapi_tls_Dispatch), %g1'

        print '\tGL_LL\t[%g2 + %g1], %g2, GL_TIE_LD(_glapi_tls_Dispatch)'

        print '\tGL_LL\t[%g7+%g2], %g1'

        print '\tGL_LL\t[%g1 + %g3], %g1'

        print '\tjmp\t%g1'

        print '\t nop'

        print '\t.size\t__glapi_sparc_tls_stub, .-__glapi_sparc_tls_stub'

        print ''

        print '#define GL_STUB(fn, off)\t\t\t\t\\'

        print '\tGLOBL_FN(fn);\t\t\t\t\t\\'

        print 'fn:\tba\t__glapi_sparc_tls_stub;\t\t\t\\'

        print '\t sethi\tGL_OFF(off), %g3;\t\t\t\\'

        print '\t.size\tfn,.-fn;'

        print ''

        print '#elif defined(HAVE_PTHREAD)'

        print ''

        print '\t/* 64-bit 0x00 --> sethi %hh(_glapi_Dispatch), %g1 */'

        print '\t/* 64-bit 0x04 --> sethi %lm(_glapi_Dispatch), %g2 */'

        print '\t/* 64-bit 0x08 --> or %g1, %hm(_glapi_Dispatch), %g1 */'

        print '\t/* 64-bit 0x0c --> sllx %g1, 32, %g1 */'

        print '\t/* 64-bit 0x10 --> add %g1, %g2, %g1 */'

        print '\t/* 64-bit 0x14 --> ldx [%g1 + %lo(_glapi_Dispatch)], %g1 */'

        print ''

        print '\t/* 32-bit 0x00 --> sethi %hi(_glapi_Dispatch), %g1 */'

        print '\t/* 32-bit 0x04 --> ld [%g1 + %lo(_glapi_Dispatch)], %g1 */'

        print ''

        print '\t.data'

        print '\t.align\t32'

        print ''

        print '\tGLOBL_FN(__glapi_sparc_pthread_stub)'

        print '\tHIDDEN(__glapi_sparc_pthread_stub)'

        print '__glapi_sparc_pthread_stub: /* Call offset in %g3 */'

        print '\tmov\t%o7, %g1'

        print '\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2'

        print '\tcall\t__glapi_sparc_get_pc'

        print '\t add\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2'

        print '\tmov\t%g1, %o7'

        print '\tsethi\t%hi(_glapi_Dispatch), %g1'

        print '\tor\t%g1, %lo(_glapi_Dispatch), %g1'

        print '\tsrl\t%g3, 10, %g3'

        print '\tGL_LL\t[%g2+%g1], %g2'

        print '\tGL_LL\t[%g2], %g1'

        print '\tcmp\t%g1, 0'

        print '\tbe\t2f'

        print '\t nop'

        print '1:\tGL_LL\t[%g1 + %g3], %g1'

        print '\tjmp\t%g1'

        print '\t nop'

        print '2:\tsave\t%sp, GL_STACK_SIZE, %sp'

        print '\tmov\t%g3, %l0'

        print '\tcall\t_glapi_get_dispatch'

        print '\t nop'

        print '\tmov\t%o0, %g1'

        print '\tmov\t%l0, %g3'

        print '\tba\t1b'

        print '\t restore %g0, %g0, %g0'

        print '\t.size\t__glapi_sparc_pthread_stub, .-__glapi_sparc_pthread_stub'

        print ''

        print '#define GL_STUB(fn, off)\t\t\t\\'

        print '\tGLOBL_FN(fn);\t\t\t\t\\'

        print 'fn:\tba\t__glapi_sparc_pthread_stub;\t\\'

        print '\t sethi\tGL_OFF(off), %g3;\t\t\\'

        print '\t.size\tfn,.-fn;'

        print ''

        print '#else /* Non-threaded version. */'

        print ''

        print '\t.type	__glapi_sparc_nothread_stub, @function'

        print '__glapi_sparc_nothread_stub: /* Call offset in %g3 */'

        print '\tmov\t%o7, %g1'

        print '\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2'

        print '\tcall\t__glapi_sparc_get_pc'

        print '\t add\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2'

        print '\tmov\t%g1, %o7'

        print '\tsrl\t%g3, 10, %g3'

        print '\tsethi\t%hi(_glapi_Dispatch), %g1'

        print '\tor\t%g1, %lo(_glapi_Dispatch), %g1'

        print '\tGL_LL\t[%g2+%g1], %g2'

        print '\tGL_LL\t[%g2], %g1'

        print '\tGL_LL\t[%g1 + %g3], %g1'

        print '\tjmp\t%g1'

        print '\t nop'

        print '\t.size\t__glapi_sparc_nothread_stub, .-__glapi_sparc_nothread_stub'

        print ''

        print '#define GL_STUB(fn, off)\t\t\t\\'

        print '\tGLOBL_FN(fn);\t\t\t\t\\'

        print 'fn:\tba\t__glapi_sparc_nothread_stub;\t\\'

        print '\t sethi\tGL_OFF(off), %g3;\t\t\\'

        print '\t.size\tfn,.-fn;'

        print ''

        print '#endif'

        print ''

        print '#define GL_STUB_ALIAS(fn, alias)		\\'

        print '	.globl	fn;				\\'

        print '	.set	fn, alias'

        print ''

        print '\t.text'

        print '\t.align\t32'

        print ''

        print '\t.globl\tgl_dispatch_functions_start'

        print '\tHIDDEN(gl_dispatch_functions_start)'

        print 'gl_dispatch_functions_start:'

        print ''

        return

    def printRealFooter(self):

        print ''

        print '\t.globl\tgl_dispatch_functions_end'

        print '\tHIDDEN(gl_dispatch_functions_end)'

        print 'gl_dispatch_functions_end:'

        return

    def printBody(self, api):

        for f in api.functionIterateByOffset():

            name = f.dispatch_name()

            print '\tGL_STUB(gl%s, %d)' % (name, f.offset)

            if not f.is_static_entry_point(f.name):

                print '\tHIDDEN(gl%s)' % (name)

        for f in api.functionIterateByOffset():

            name = f.dispatch_name()

            if f.is_static_entry_point(f.name):

                for n in f.entry_points:

                    if n != f.name:

                        text = '\tGL_STUB_ALIAS(gl%s, gl%s)' % (n, f.name)

                        if f.has_different_protocol(n):

                            print '#ifndef GLX_INDIRECT_RENDERING'

                            print text

                            print '#endif'

                        else:

                            print text

        return

def show_usage():

    print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0]

    sys.exit(1)

if __name__ == '__main__':

    file_name = "gl_API.xml"

    mode = "generic"

    try:

        (args, trail) = getopt.getopt(sys.argv[1:], "m:f:")

    except Exception,e:

        show_usage()

    for (arg,val) in args:

        if arg == '-m':

            mode = val

        elif arg == "-f":

            file_name = val

    if mode == "generic":

        printer = PrintGenericStubs()

    else:

        print "ERROR: Invalid mode \"%s\" specified." % mode

        show_usage()

    api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory())

    printer.Print(api)