xref: /aosp_15_r20/external/mesa3d/src/mapi/glapi/gen/gl_SPARC_asm.py (revision 6104692788411f58d303aa86923a9ff6ecaded22) 
1
2# (C) Copyright IBM Corporation 2004
3# All Rights Reserved.
4#
5# Permission is hereby granted, free of charge, to any person obtaining a
6# copy of this software and associated documentation files (the "Software"),
7# to deal in the Software without restriction, including without limitation
8# on the rights to use, copy, modify, merge, publish, distribute, sub
9# license, and/or sell copies of the Software, and to permit persons to whom
10# the Software is furnished to do so, subject to the following conditions:
11#
12# The above copyright notice and this permission notice (including the next
13# paragraph) shall be included in all copies or substantial portions of the
14# Software.
15#
16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
19# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22# IN THE SOFTWARE.
23#
24# Authors:
25#    Ian Romanick <[email protected]>
26
27import argparse
28
29import license
30import gl_XML, glX_XML
31
32class PrintGenericStubs(gl_XML.gl_print_base):
33    def __init__(self):
34        gl_XML.gl_print_base.__init__(self)
35        self.name = "gl_SPARC_asm.py (from Mesa)"
36        self.license = license.bsd_license_template % ( \
37"""Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
38(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
39
40
41    def printRealHeader(self):
42        print('#ifdef __arch64__')
43        print('#define GL_OFF(N)\t((N) * 8)')
44        print('#define GL_LL\t\tldx')
45        print('#define GL_TIE_LD(SYM)\t%tie_ldx(SYM)')
46        print('#define GL_STACK_SIZE\t128')
47        print('#else')
48        print('#define GL_OFF(N)\t((N) * 4)')
49        print('#define GL_LL\t\tld')
50        print('#define GL_TIE_LD(SYM)\t%tie_ld(SYM)')
51        print('#define GL_STACK_SIZE\t64')
52        print('#endif')
53        print('')
54        print('#define GLOBL_FN(x) .globl x ; .type x, @function')
55        print('#define HIDDEN(x) .hidden x')
56        print('')
57        print('\t.register %g2, #scratch')
58        print('\t.register %g3, #scratch')
59        print('')
60        print('\t.text')
61        print('')
62        print('\tGLOBL_FN(__glapi_sparc_icache_flush)')
63        print('\tHIDDEN(__glapi_sparc_icache_flush)')
64        print('\t.type\t__glapi_sparc_icache_flush, @function')
65        print('__glapi_sparc_icache_flush: /* %o0 = insn_addr */')
66        print('\tflush\t%o0')
67        print('\tretl')
68        print('\t nop')
69        print('')
70        print('\t.align\t32')
71        print('')
72        print('\t.type\t__glapi_sparc_get_pc, @function')
73        print('__glapi_sparc_get_pc:')
74        print('\tretl')
75        print('\t add\t%o7, %g2, %g2')
76        print('\t.size\t__glapi_sparc_get_pc, .-__glapi_sparc_get_pc')
77        print('')
78        print('')
79        print('\tGLOBL_FN(__glapi_sparc_get_dispatch)')
80        print('\tHIDDEN(__glapi_sparc_get_dispatch)')
81        print('__glapi_sparc_get_dispatch:')
82        print('\tmov\t%o7, %g1')
83        print('\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2')
84        print('\tcall\t__glapi_sparc_get_pc')
85        print('\tadd\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2')
86        print('\tmov\t%g1, %o7')
87        print('\tsethi\t%tie_hi22(_glapi_tls_Dispatch), %g1')
88        print('\tadd\t%g1, %tie_lo10(_glapi_tls_Dispatch), %g1')
89        print('\tGL_LL\t[%g2 + %g1], %g2, GL_TIE_LD(_glapi_tls_Dispatch)')
90        print('\tretl')
91        print('\t mov\t%g2, %o0')
92        print('')
93        print('\t.data')
94        print('\t.align\t32')
95        print('')
96        print('\t/* --> sethi %hi(_glapi_tls_Dispatch), %g1 */')
97        print('\t/* --> or %g1, %lo(_glapi_tls_Dispatch), %g1 */')
98        print('\tGLOBL_FN(__glapi_sparc_tls_stub)')
99        print('\tHIDDEN(__glapi_sparc_tls_stub)')
100        print('__glapi_sparc_tls_stub: /* Call offset in %g3 */')
101        print('\tmov\t%o7, %g1')
102        print('\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2')
103        print('\tcall\t__glapi_sparc_get_pc')
104        print('\tadd\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2')
105        print('\tmov\t%g1, %o7')
106        print('\tsrl\t%g3, 10, %g3')
107        print('\tsethi\t%tie_hi22(_glapi_tls_Dispatch), %g1')
108        print('\tadd\t%g1, %tie_lo10(_glapi_tls_Dispatch), %g1')
109        print('\tGL_LL\t[%g2 + %g1], %g2, GL_TIE_LD(_glapi_tls_Dispatch)')
110        print('\tGL_LL\t[%g7+%g2], %g1')
111        print('\tGL_LL\t[%g1 + %g3], %g1')
112        print('\tjmp\t%g1')
113        print('\t nop')
114        print('\t.size\t__glapi_sparc_tls_stub, .-__glapi_sparc_tls_stub')
115        print('')
116        print('#define GL_STUB(fn, off)\t\t\t\t\\')
117        print('\tGLOBL_FN(fn);\t\t\t\t\t\\')
118        print('fn:\tba\t__glapi_sparc_tls_stub;\t\t\t\\')
119        print('\t sethi\tGL_OFF(off), %g3;\t\t\t\\')
120        print('\t.size\tfn,.-fn;')
121        print('')
122        print('#define GL_STUB_ALIAS(fn, alias)		\\')
123        print('	.globl	fn;				\\')
124        print('	.set	fn, alias')
125        print('')
126        print('\t.text')
127        print('\t.align\t32')
128        print('')
129        print('\t.globl\tgl_dispatch_functions_start')
130        print('\tHIDDEN(gl_dispatch_functions_start)')
131        print('gl_dispatch_functions_start:')
132        print('')
133        return
134
135    def printRealFooter(self):
136        print('')
137        print('\t.globl\tgl_dispatch_functions_end')
138        print('\tHIDDEN(gl_dispatch_functions_end)')
139        print('gl_dispatch_functions_end:')
140        return
141
142    def printBody(self, api):
143        for f in api.functionIterateByOffset():
144            name = f.dispatch_name()
145
146            print('\tGL_STUB(gl%s, %d)' % (name, f.offset))
147
148            if not f.is_static_entry_point(f.name):
149                print('\tHIDDEN(gl%s)' % (name))
150
151        for f in api.functionIterateByOffset():
152            name = f.dispatch_name()
153
154            if f.is_static_entry_point(f.name):
155                for n in f.entry_points:
156                    if n != f.name:
157                        text = '\tGL_STUB_ALIAS(gl%s, gl%s)' % (n, f.name)
158
159                        if f.has_different_protocol(n):
160                            print('#if GLAPI_EXPORT_PROTO_ENTRY_POINTS')
161                            print(text)
162                            print('#endif')
163                        else:
164                            print(text)
165
166        return
167
168
169def _parser():
170    """Parse arguments and return a namespace."""
171    parser = argparse.ArgumentParser()
172    parser.add_argument('-f',
173                        dest='filename',
174                        default='gl_API.xml',
175                        help='An XML description of an API.')
176    return parser.parse_args()
177
178
179def main():
180    """Main function."""
181    args = _parser()
182    printer = PrintGenericStubs()
183
184    api = gl_XML.parse_GL_API(args.filename, glX_XML.glx_item_factory())
185    printer.Print(api)
186
187
188if __name__ == '__main__':
189    main()
190