190 lines
6.9 KiB
Python
190 lines
6.9 KiB
Python
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# (C) Copyright IBM Corporation 2004
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# All Rights Reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Ian Romanick <idr@us.ibm.com>
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import argparse
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import license
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import gl_XML, glX_XML
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class PrintGenericStubs(gl_XML.gl_print_base):
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def __init__(self):
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gl_XML.gl_print_base.__init__(self)
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self.name = "gl_SPARC_asm.py (from Mesa)"
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self.license = license.bsd_license_template % ( \
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"""Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
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(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
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def printRealHeader(self):
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print('#ifdef __arch64__')
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print('#define GL_OFF(N)\t((N) * 8)')
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print('#define GL_LL\t\tldx')
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print('#define GL_TIE_LD(SYM)\t%tie_ldx(SYM)')
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print('#define GL_STACK_SIZE\t128')
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print('#else')
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print('#define GL_OFF(N)\t((N) * 4)')
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print('#define GL_LL\t\tld')
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print('#define GL_TIE_LD(SYM)\t%tie_ld(SYM)')
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print('#define GL_STACK_SIZE\t64')
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print('#endif')
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print('')
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print('#define GLOBL_FN(x) .globl x ; .type x, @function')
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print('#define HIDDEN(x) .hidden x')
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print('')
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print('\t.register %g2, #scratch')
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print('\t.register %g3, #scratch')
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print('')
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print('\t.text')
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print('')
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print('\tGLOBL_FN(__glapi_sparc_icache_flush)')
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print('\tHIDDEN(__glapi_sparc_icache_flush)')
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print('\t.type\t__glapi_sparc_icache_flush, @function')
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print('__glapi_sparc_icache_flush: /* %o0 = insn_addr */')
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print('\tflush\t%o0')
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print('\tretl')
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print('\t nop')
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print('')
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print('\t.align\t32')
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print('')
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print('\t.type\t__glapi_sparc_get_pc, @function')
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print('__glapi_sparc_get_pc:')
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print('\tretl')
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print('\t add\t%o7, %g2, %g2')
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print('\t.size\t__glapi_sparc_get_pc, .-__glapi_sparc_get_pc')
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print('')
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print('')
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print('\tGLOBL_FN(__glapi_sparc_get_dispatch)')
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print('\tHIDDEN(__glapi_sparc_get_dispatch)')
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print('__glapi_sparc_get_dispatch:')
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print('\tmov\t%o7, %g1')
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print('\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2')
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print('\tcall\t__glapi_sparc_get_pc')
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print('\tadd\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2')
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print('\tmov\t%g1, %o7')
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print('\tsethi\t%tie_hi22(_glapi_tls_Dispatch), %g1')
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print('\tadd\t%g1, %tie_lo10(_glapi_tls_Dispatch), %g1')
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print('\tGL_LL\t[%g2 + %g1], %g2, GL_TIE_LD(_glapi_tls_Dispatch)')
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print('\tretl')
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print('\t mov\t%g2, %o0')
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print('')
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print('\t.data')
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print('\t.align\t32')
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print('')
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print('\t/* --> sethi %hi(_glapi_tls_Dispatch), %g1 */')
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print('\t/* --> or %g1, %lo(_glapi_tls_Dispatch), %g1 */')
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print('\tGLOBL_FN(__glapi_sparc_tls_stub)')
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print('\tHIDDEN(__glapi_sparc_tls_stub)')
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print('__glapi_sparc_tls_stub: /* Call offset in %g3 */')
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print('\tmov\t%o7, %g1')
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print('\tsethi\t%hi(_GLOBAL_OFFSET_TABLE_-4), %g2')
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print('\tcall\t__glapi_sparc_get_pc')
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print('\tadd\t%g2, %lo(_GLOBAL_OFFSET_TABLE_+4), %g2')
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print('\tmov\t%g1, %o7')
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print('\tsrl\t%g3, 10, %g3')
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print('\tsethi\t%tie_hi22(_glapi_tls_Dispatch), %g1')
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print('\tadd\t%g1, %tie_lo10(_glapi_tls_Dispatch), %g1')
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print('\tGL_LL\t[%g2 + %g1], %g2, GL_TIE_LD(_glapi_tls_Dispatch)')
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print('\tGL_LL\t[%g7+%g2], %g1')
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print('\tGL_LL\t[%g1 + %g3], %g1')
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print('\tjmp\t%g1')
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print('\t nop')
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print('\t.size\t__glapi_sparc_tls_stub, .-__glapi_sparc_tls_stub')
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print('')
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print('#define GL_STUB(fn, off)\t\t\t\t\\')
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print('\tGLOBL_FN(fn);\t\t\t\t\t\\')
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print('fn:\tba\t__glapi_sparc_tls_stub;\t\t\t\\')
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print('\t sethi\tGL_OFF(off), %g3;\t\t\t\\')
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print('\t.size\tfn,.-fn;')
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print('')
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print('#define GL_STUB_ALIAS(fn, alias) \\')
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print(' .globl fn; \\')
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print(' .set fn, alias')
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print('')
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print('\t.text')
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print('\t.align\t32')
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print('')
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print('\t.globl\tgl_dispatch_functions_start')
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print('\tHIDDEN(gl_dispatch_functions_start)')
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print('gl_dispatch_functions_start:')
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print('')
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return
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def printRealFooter(self):
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print('')
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print('\t.globl\tgl_dispatch_functions_end')
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print('\tHIDDEN(gl_dispatch_functions_end)')
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print('gl_dispatch_functions_end:')
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return
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def printBody(self, api):
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for f in api.functionIterateByOffset():
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name = f.dispatch_name()
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print('\tGL_STUB(gl%s, %d)' % (name, f.offset))
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if not f.is_static_entry_point(f.name):
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print('\tHIDDEN(gl%s)' % (name))
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for f in api.functionIterateByOffset():
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name = f.dispatch_name()
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if f.is_static_entry_point(f.name):
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for n in f.entry_points:
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if n != f.name:
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text = '\tGL_STUB_ALIAS(gl%s, gl%s)' % (n, f.name)
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if f.has_different_protocol(n):
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print('#ifndef GLX_INDIRECT_RENDERING')
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print(text)
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print('#endif')
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else:
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print(text)
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return
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def _parser():
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"""Parse arguments and return a namespace."""
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parser = argparse.ArgumentParser()
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parser.add_argument('-f',
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dest='filename',
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default='gl_API.xml',
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help='An XML description of an API.')
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return parser.parse_args()
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def main():
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"""Main function."""
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args = _parser()
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printer = PrintGenericStubs()
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api = gl_XML.parse_GL_API(args.filename, glX_XML.glx_item_factory())
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printer.Print(api)
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if __name__ == '__main__':
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main()
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