c0c7941ce10b4f250b44f459b2e785148030c0c8
3 # (C) Copyright IBM Corporation 2004, 2005
6 # Permission is hereby granted, free of charge, to any person obtaining a
7 # copy of this software and associated documentation files (the "Software"),
8 # to deal in the Software without restriction, including without limitation
9 # on the rights to use, copy, modify, merge, publish, distribute, sub
10 # license, and/or sell copies of the Software, and to permit persons to whom
11 # the Software is furnished to do so, subject to the following conditions:
13 # The above copyright notice and this permission notice (including the next
14 # paragraph) shall be included in all copies or substantial portions of the
17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 # FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 # IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 # Ian Romanick <idr@us.ibm.com>
31 import gl_XML
, glX_XML
33 class PrintGenericStubs(gl_XML
.gl_print_base
):
36 gl_XML
.gl_print_base
.__init
__(self
)
38 self
.name
= "gl_x86_asm.py (from Mesa)"
39 self
.license
= license
.bsd_license_template
% ( \
40 """Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
41 (C) Copyright IBM Corporation 2004, 2005""", "BRIAN PAUL, IBM")
45 def get_stack_size(self
, f
):
47 for p
in f
.parameterIterator():
51 size
+= p
.get_stack_size()
56 def printRealHeader(self
):
57 print '#include "x86/assyntax.h"'
59 print '#if defined(STDCALL_API)'
60 print '# if defined(USE_MGL_NAMESPACE)'
61 print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n2))'
63 print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n2))'
66 print '# if defined(USE_MGL_NAMESPACE)'
67 print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n))'
68 print '# define _glapi_Dispatch _mglapi_Dispatch'
70 print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n))'
74 print '#define GL_OFFSET(x) CODEPTR(REGOFF(4 * x, EAX))'
76 print '#if defined(GNU_ASSEMBLER) && !defined(__MINGW32__) && !defined(__APPLE__)'
77 print '#define GLOBL_FN(x) GLOBL x ; .type x, @function'
79 print '#define GLOBL_FN(x) GLOBL x'
83 print '#ifdef GLX_USE_TLS'
85 print '#ifdef GLX_X86_READONLY_TEXT'
86 print '# define CTX_INSNS MOV_L(GS:(EAX), EAX)'
88 print '# define CTX_INSNS NOP /* Pad for init_glapi_relocs() */'
91 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
92 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
93 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
94 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
95 print '\tCALL(_x86_get_dispatch) ;\t\t\t\\'
96 print '\tCTX_INSNS ; \\'
97 print '\tJMP(GL_OFFSET(off))'
99 print '#elif defined(HAVE_PTHREAD)'
100 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
101 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
102 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
103 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
104 print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
105 print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\'
106 print '\tJE(1f) ;\t\t\t\t\t\\'
107 print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\'
108 print '1:\tCALL(_x86_get_dispatch) ;\t\t\t\\'
109 print '\tJMP(GL_OFFSET(off))'
111 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
112 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
113 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
114 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
115 print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
116 print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\'
117 print '\tJE(1f) ;\t\t\t\t\t\\'
118 print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\'
119 print '1:\tCALL(_glapi_get_dispatch) ;\t\t\t\\'
120 print '\tJMP(GL_OFFSET(off))'
123 print '#ifdef HAVE_ALIAS'
124 print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\'
125 print '\t.globl\tGL_PREFIX(fn, fn_alt) ;\t\t\t\\'
126 print '\t.set\tGL_PREFIX(fn, fn_alt), GL_PREFIX(alias, alias_alt)'
128 print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\'
129 print ' GL_STUB(fn, off, fn_alt)'
134 print '#ifdef GLX_USE_TLS'
136 print '\tGLOBL\tGLNAME(_x86_get_dispatch)'
137 print '\tHIDDEN(GLNAME(_x86_get_dispatch))'
139 print 'GLNAME(_x86_get_dispatch):'
141 print '1:\tpopl %eax'
142 print '\taddl $_GLOBAL_OFFSET_TABLE_+[.-1b], %eax'
143 print '\tmovl _glapi_tls_Dispatch@GOTNTPOFF(%eax), %eax'
146 print '#elif defined(HAVE_PTHREAD)'
147 print 'EXTERN GLNAME(_glapi_Dispatch)'
148 print 'EXTERN GLNAME(_gl_DispatchTSD)'
149 print 'EXTERN GLNAME(pthread_getspecific)'
152 print 'GLNAME(_x86_get_dispatch):'
153 print '\tSUB_L(CONST(24), ESP)'
154 print '\tPUSH_L(GLNAME(_gl_DispatchTSD))'
155 print '\tCALL(GLNAME(pthread_getspecific))'
156 print '\tADD_L(CONST(28), ESP)'
159 print 'EXTERN GLNAME(_glapi_get_dispatch)'
163 print '#if defined( GLX_USE_TLS ) && !defined( GLX_X86_READONLY_TEXT )'
164 print '\t\t.section\twtext, "awx", @progbits'
165 print '#endif /* defined( GLX_USE_TLS ) */'
168 print '\t\tALIGNTEXT16'
169 print '\t\tGLOBL GLNAME(gl_dispatch_functions_start)'
170 print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_start))'
171 print 'GLNAME(gl_dispatch_functions_start):'
176 def printRealFooter(self
):
178 print '\t\tGLOBL\tGLNAME(gl_dispatch_functions_end)'
179 print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_end))'
180 print '\t\tALIGNTEXT16'
181 print 'GLNAME(gl_dispatch_functions_end):'
183 print '#if defined (__ELF__) && defined (__linux__)'
184 print ' .section .note.GNU-stack,"",%progbits'
189 def printBody(self
, api
):
190 for f
in api
.functionIterateByOffset():
191 name
= f
.dispatch_name()
192 stack
= self
.get_stack_size(f
)
193 alt
= "%s@%u" % (name
, stack
)
195 print '\tGL_STUB(%s, %d, %s)' % (name
, f
.offset
, alt
)
197 if not f
.is_static_entry_point(f
.name
):
198 print '\tHIDDEN(GL_PREFIX(%s, %s))' % (name
, alt
)
201 for f
in api
.functionIterateByOffset():
202 name
= f
.dispatch_name()
203 stack
= self
.get_stack_size(f
)
204 alt
= "%s@%u" % (name
, stack
)
206 for n
in f
.entry_points
:
207 if f
.is_static_entry_point(n
):
209 alt2
= "%s@%u" % (n
, stack
)
210 text
= '\tGL_STUB_ALIAS(%s, %d, %s, %s, %s)' % (n
, f
.offset
, alt2
, name
, alt
)
212 if f
.has_different_protocol(n
):
213 print '#ifndef GLX_INDIRECT_RENDERING'
222 parser
= argparse
.ArgumentParser()
223 parser
.add_argument('-f',
225 default
='gl_API.xml',
226 help='An XML file describing an API.')
227 return parser
.parse_args()
232 printer
= PrintGenericStubs()
234 api
= gl_XML
.parse_GL_API(args
.filename
, glX_XML
.glx_item_factory())
238 if __name__
== '__main__':