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>
29 import gl_XML
, glX_XML
32 class PrintGenericStubs(gl_XML
.gl_print_base
):
35 gl_XML
.gl_print_base
.__init
__(self
)
37 self
.name
= "gl_x86_asm.py (from Mesa)"
38 self
.license
= license
.bsd_license_template
% ( \
39 """Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
40 (C) Copyright IBM Corporation 2004, 2005""", "BRIAN PAUL, IBM")
44 def get_stack_size(self
, f
):
46 for p
in f
.parameterIterator():
50 size
+= p
.get_stack_size()
55 def printRealHeader(self
):
56 print '#include "assyntax.h"'
57 print '#include "glapi/glapioffsets.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(__DJGPP__) && !defined(__MINGW32__)'
77 print '#define GLOBL_FN(x) GLOBL x ; .type x, function'
79 print '#define GLOBL_FN(x) GLOBL x'
82 print '#if defined(PTHREADS) || defined(USE_XTHREADS) || defined(SOLARIS_THREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)'
83 print '# define THREADS'
86 print '#ifdef GLX_USE_TLS'
88 print '#ifdef GLX_X86_READONLY_TEXT'
89 print '# define CTX_INSNS MOV_L(GS:(EAX), EAX)'
91 print '# define CTX_INSNS NOP /* Pad for init_glapi_relocs() */'
94 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
95 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
96 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
97 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
98 print '\tCALL(_x86_get_dispatch) ;\t\t\t\\'
99 print '\tCTX_INSNS ; \\'
100 print '\tJMP(GL_OFFSET(off))'
102 print '#elif defined(PTHREADS)'
103 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
104 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
105 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
106 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
107 print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
108 print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\'
109 print '\tJE(1f) ;\t\t\t\t\t\\'
110 print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\'
111 print '1:\tCALL(_x86_get_dispatch) ;\t\t\t\\'
112 print '\tJMP(GL_OFFSET(off))'
113 print '#elif defined(THREADS)'
114 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
115 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
116 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
117 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
118 print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
119 print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\'
120 print '\tJE(1f) ;\t\t\t\t\t\\'
121 print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\'
122 print '1:\tCALL(_glapi_get_dispatch) ;\t\t\t\\'
123 print '\tJMP(GL_OFFSET(off))'
124 print '#else /* Non-threaded version. */'
125 print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
126 print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
127 print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
128 print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
129 print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
130 print '\tJMP(GL_OFFSET(off))'
133 print '#ifdef HAVE_ALIAS'
134 print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\'
135 print '\t.globl\tGL_PREFIX(fn, fn_alt) ;\t\t\t\\'
136 print '\t.set\tGL_PREFIX(fn, fn_alt), GL_PREFIX(alias, alias_alt)'
138 print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\'
139 print ' GL_STUB(fn, off, fn_alt)'
144 print '#ifdef GLX_USE_TLS'
146 print '\tGLOBL\tGLNAME(_x86_get_dispatch)'
147 print '\tHIDDEN(GLNAME(_x86_get_dispatch))'
149 print 'GLNAME(_x86_get_dispatch):'
151 print '1:\tpopl %eax'
152 print '\taddl $_GLOBAL_OFFSET_TABLE_+[.-1b], %eax'
153 print '\tmovl _glapi_tls_Dispatch@GOTNTPOFF(%eax), %eax'
156 print '#elif defined(PTHREADS)'
157 print 'EXTERN GLNAME(_glapi_Dispatch)'
158 print 'EXTERN GLNAME(_gl_DispatchTSD)'
159 print 'EXTERN GLNAME(pthread_getspecific)'
162 print 'GLNAME(_x86_get_dispatch):'
163 print '\tSUB_L(CONST(24), ESP)'
164 print '\tPUSH_L(GLNAME(_gl_DispatchTSD))'
165 print '\tCALL(GLNAME(pthread_getspecific))'
166 print '\tADD_L(CONST(28), ESP)'
168 print '#elif defined(THREADS)'
169 print 'EXTERN GLNAME(_glapi_get_dispatch)'
173 print '#if defined( GLX_USE_TLS ) && !defined( GLX_X86_READONLY_TEXT )'
174 print '\t\t.section\twtext, "awx", @progbits'
175 print '#endif /* defined( GLX_USE_TLS ) */'
178 print '\t\tALIGNTEXT16'
179 print '\t\tGLOBL GLNAME(gl_dispatch_functions_start)'
180 print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_start))'
181 print 'GLNAME(gl_dispatch_functions_start):'
186 def printRealFooter(self
):
188 print '\t\tGLOBL\tGLNAME(gl_dispatch_functions_end)'
189 print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_end))'
190 print '\t\tALIGNTEXT16'
191 print 'GLNAME(gl_dispatch_functions_end):'
193 print '#if defined(GLX_USE_TLS) && defined(__linux__)'
194 print ' .section ".note.ABI-tag", "a"'
196 print ' .long 1f - 0f /* name length */'
197 print ' .long 3f - 2f /* data length */'
198 print ' .long 1 /* note length */'
199 print '0: .asciz "GNU" /* vendor name */'
200 print '1: .p2align 2'
201 print '2: .long 0 /* note data: the ABI tag */'
202 print ' .long 2,4,20 /* Minimum kernel version w/TLS */'
203 print '3: .p2align 2 /* pad out section */'
204 print '#endif /* GLX_USE_TLS */'
206 print '#if defined (__ELF__) && defined (__linux__)'
207 print ' .section .note.GNU-stack,"",%progbits'
212 def printBody(self
, api
):
213 for f
in api
.functionIterateByOffset():
214 name
= f
.dispatch_name()
215 stack
= self
.get_stack_size(f
)
216 alt
= "%s@%u" % (name
, stack
)
218 print '\tGL_STUB(%s, _gloffset_%s, %s)' % (name
, f
.name
, alt
)
220 if not f
.is_static_entry_point(f
.name
):
221 print '\tHIDDEN(GL_PREFIX(%s, %s))' % (name
, alt
)
224 for f
in api
.functionIterateByOffset():
225 name
= f
.dispatch_name()
226 stack
= self
.get_stack_size(f
)
227 alt
= "%s@%u" % (name
, stack
)
229 if f
.is_static_entry_point(f
.name
):
230 for n
in f
.entry_points
:
232 alt2
= "%s@%u" % (n
, stack
)
233 text
= '\tGL_STUB_ALIAS(%s, _gloffset_%s, %s, %s, %s)' % (n
, f
.name
, alt2
, f
.name
, alt
)
235 if f
.has_different_protocol(n
):
236 print '#ifndef GLX_INDIRECT_RENDERING'
245 print "Usage: %s [-f input_file_name] [-m output_mode]" % sys
.argv
[0]
248 if __name__
== '__main__':
249 file_name
= "gl_API.xml"
253 (args
, trail
) = getopt
.getopt(sys
.argv
[1:], "m:f:")
257 for (arg
,val
) in args
:
263 if mode
== "generic":
264 printer
= PrintGenericStubs()
266 print "ERROR: Invalid mode \"%s\" specified." % mode
269 api
= gl_XML
.parse_GL_API(file_name
, glX_XML
.glx_item_factory())