25fe93f0a1
DRI drivers. A TLS enabled libGL can load a TLS or a non-TLS DRI driver, but a TLS DRI driver requires a TLS enabled libGL. This fixes bug #1822.
259 lines
8.2 KiB
Python
259 lines
8.2 KiB
Python
#!/usr/bin/python2
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# (C) Copyright IBM Corporation 2004, 2005
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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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from xml.sax import saxutils
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from xml.sax import make_parser
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from xml.sax.handler import feature_namespaces
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import gl_XML
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import license
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import sys, getopt
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class PrintGenericStubs(gl_XML.FilterGLAPISpecBase):
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name = "gl_x86_asm.py (from Mesa)"
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def __init__(self):
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gl_XML.FilterGLAPISpecBase.__init__(self)
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self.license = license.bsd_license_template % ( \
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"""Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
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(C) Copyright IBM Corporation 2004, 2005""", "BRIAN PAUL, IBM")
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def get_stack_size(self, f):
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size = 0
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for p in f.parameterIterator():
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t = p.p_type
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if p.is_array() or t.size != 8:
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size += 4
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else:
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size += 8
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return size
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def printRealHeader(self):
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print '#include "assyntax.h"'
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print '#include "glapioffsets.h"'
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print ''
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print "/* If we build with gcc's -fvisibility=hidden flag, we'll need to change"
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print "* the symbol visibility mode to 'default'."
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print '*/'
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print '#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303'
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print '# pragma GCC visibility push(default)'
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print '# define HIDDEN(x) .hidden x'
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print '#else'
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print '# define HIDDEN(x)'
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print '#endif'
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print ''
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print '#ifndef __WIN32__'
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print ''
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print '#if defined(STDCALL_API)'
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print '# if defined(USE_MGL_NAMESPACE)'
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print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n2))'
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print '# else'
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print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n2))'
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print '# endif'
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print '#else'
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print '# if defined(USE_MGL_NAMESPACE)'
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print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n))'
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print '# else'
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print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n))'
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print '# endif'
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print '#endif'
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print ''
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print '#define GL_OFFSET(x) CODEPTR(REGOFF(4 * x, EAX))'
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print ''
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print '#if defined(GNU_ASSEMBLER) && !defined(__DJGPP__) && !defined(__MINGW32__)'
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print '#define GLOBL_FN(x) GLOBL x ; .type x, function'
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print '#else'
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print '#define GLOBL_FN(x) GLOBL x'
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print '#endif'
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print ''
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print '#if defined(PTHREADS) || defined(XTHREADS) || defined(SOLARIS_THREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)'
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print '# define THREADS'
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print '#endif'
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print ''
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print '#ifdef GLX_USE_TLS'
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print ''
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print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
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print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
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print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
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print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
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print '\tCALL(_x86_get_dispatch) ;\t\t\t\\'
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print '\tNOP ;\t\t\t\t\t\t\\'
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print '\tJMP(GL_OFFSET(off))'
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print ''
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print '#elif defined(PTHREADS)'
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print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
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print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
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print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
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print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
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print '\tMOV_L(CONTENT(GLNAME(_glapi_DispatchTSD)), EAX) ;\t\\'
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print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\'
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print '\tJE(1f) ;\t\t\t\t\t\\'
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print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\'
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print '1:\tCALL(_x86_get_dispatch) ;\t\t\t\\'
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print '\tJMP(GL_OFFSET(off))'
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print '#elif defined(THREADS)'
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print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
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print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
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print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
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print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
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print '\tMOV_L(CONTENT(GLNAME(_glapi_DispatchTSD)), EAX) ;\t\\'
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print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\'
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print '\tJE(1f) ;\t\t\t\t\t\\'
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print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\'
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print '1:\tCALL(_glapi_get_dispatch) ;\t\t\t\\'
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print '\tJMP(GL_OFFSET(off))'
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print '#else /* Non-threaded version. */'
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print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\'
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print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
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print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\'
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print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\'
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print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
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print '\tJMP(GL_OFFSET(off))'
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print '#endif'
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print ''
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print '#ifdef HAVE_ALIAS'
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print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\'
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print '\t.globl\tGL_PREFIX(fn, fn_alt) ;\t\t\t\\'
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print '\t.set\tGL_PREFIX(fn, fn_alt), GL_PREFIX(alias, alias_alt)'
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print '#else'
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print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\'
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print ' GL_STUB(fn, off, fn_alt)'
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print '#endif'
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print ''
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print 'SEG_TEXT'
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print ''
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print '#ifdef GLX_USE_TLS'
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print ''
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print '\tGLOBL\tGLNAME(_x86_get_dispatch)'
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print '\tHIDDEN(GLNAME(_x86_get_dispatch))'
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print 'ALIGNTEXT16'
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print 'GLNAME(_x86_get_dispatch):'
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print '\tmovl\t%gs:_glapi_tls_Dispatch@NTPOFF, %eax'
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print '\tret'
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print ''
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print '#elif defined(PTHREADS)'
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print 'EXTERN GLNAME(_glapi_Dispatch)'
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print 'EXTERN GLNAME(_gl_DispatchTSD)'
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print 'EXTERN GLNAME(pthread_getspecific)'
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print ''
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print 'ALIGNTEXT16'
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print 'GLNAME(_x86_get_dispatch):'
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print '\tSUB_L(CONST(24), ESP)'
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print '\tPUSH_L(GLNAME(_gl_DispatchTSD))'
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print '\tCALL(GLNAME(pthread_getspecific))'
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print '\tADD_L(CONST(28), ESP)'
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print '\tRET'
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print '#elif defined(THREADS)'
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print 'EXTERN GLNAME(_glapi_get_dispatch)'
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print '#endif'
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print ''
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print '#if defined( GLX_USE_TLS )'
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print '\t\t.section\twtext, "awx", @progbits'
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print '#endif /* defined( GLX_USE_TLS ) */'
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print ''
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print '\t\tALIGNTEXT16'
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print '\t\tGLOBL GLNAME(gl_dispatch_functions_start)'
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print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_start))'
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print 'GLNAME(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\tGLOBL\tGLNAME(gl_dispatch_functions_end)'
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print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_end))'
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print '\t\tALIGNTEXT16'
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print 'GLNAME(gl_dispatch_functions_end):'
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print ''
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print '#if defined(GLX_USE_TLS) && defined(__linux__)'
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print ' .section ".note.ABI-tag", "a"'
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print ' .p2align 2'
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print ' .long 1f - 0f /* name length */'
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print ' .long 3f - 2f /* data length */'
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print ' .long 1 /* note length */'
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print '0: .asciz "GNU" /* vendor name */'
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print '1: .p2align 2'
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print '2: .long 0 /* note data: the ABI tag */'
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print ' .long 2,4,20 /* Minimum kernel version w/TLS */'
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print '3: .p2align 2 /* pad out section */'
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print '#endif /* GLX_USE_TLS */'
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print ''
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print '#endif /* __WIN32__ */'
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return
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def printFunction(self, f):
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stack = self.get_stack_size(f)
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alt = "%s@%u" % (f.name, stack)
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if f.fn_alias == None:
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print '\tGL_STUB(%s, _gloffset_%s, %s)' % (f.name, f.real_name, alt)
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else:
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alias_alt = "%s@%u" % (f.real_name, stack)
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print '\tGL_STUB_ALIAS(%s, _gloffset_%s, %s, %s, %s)' % \
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(f.name, f.real_name, alt, f.real_name, alias_alt)
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return
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def show_usage():
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print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0]
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sys.exit(1)
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if __name__ == '__main__':
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file_name = "gl_API.xml"
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mode = "generic"
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try:
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(args, trail) = getopt.getopt(sys.argv[1:], "m:f:")
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except Exception,e:
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show_usage()
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for (arg,val) in args:
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if arg == '-m':
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mode = val
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elif arg == "-f":
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file_name = val
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if mode == "generic":
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dh = PrintGenericStubs()
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else:
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print "ERROR: Invalid mode \"%s\" specified." % mode
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show_usage()
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parser = make_parser()
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parser.setFeature(feature_namespaces, 0)
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parser.setContentHandler(dh)
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f = open(file_name)
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dh.printHeader()
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parser.parse(f)
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dh.printFooter()
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