0,0 → 1,269 |
#!/usr/bin/env python |
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# (C) Copyright IBM Corporation 2004, 2005 |
# All Rights Reserved. |
# |
# Permission is hereby granted, free of charge, to any person obtaining a |
# copy of this software and associated documentation files (the "Software"), |
# to deal in the Software without restriction, including without limitation |
# on the rights to use, copy, modify, merge, publish, distribute, sub |
# license, and/or sell copies of the Software, and to permit persons to whom |
# the Software is furnished to do so, subject to the following conditions: |
# |
# The above copyright notice and this permission notice (including the next |
# paragraph) shall be included in all copies or substantial portions of the |
# Software. |
# |
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
# IN THE SOFTWARE. |
# |
# Authors: |
# Ian Romanick <idr@us.ibm.com> |
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import license |
import gl_XML, glX_XML |
import sys, getopt |
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class PrintGenericStubs(gl_XML.gl_print_base): |
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def __init__(self): |
gl_XML.gl_print_base.__init__(self) |
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self.name = "gl_x86_asm.py (from Mesa)" |
self.license = license.bsd_license_template % ( \ |
"""Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
(C) Copyright IBM Corporation 2004, 2005""", "BRIAN PAUL, IBM") |
return |
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def get_stack_size(self, f): |
size = 0 |
for p in f.parameterIterator(): |
if p.is_padding: |
continue |
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size += p.get_stack_size() |
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return size |
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def printRealHeader(self): |
print '#include "x86/assyntax.h"' |
print '' |
print '#if defined(STDCALL_API)' |
print '# if defined(USE_MGL_NAMESPACE)' |
print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n2))' |
print '# else' |
print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n2))' |
print '# endif' |
print '#else' |
print '# if defined(USE_MGL_NAMESPACE)' |
print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n))' |
print '# define _glapi_Dispatch _mglapi_Dispatch' |
print '# else' |
print '# define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n))' |
print '# endif' |
print '#endif' |
print '' |
print '#define GL_OFFSET(x) CODEPTR(REGOFF(4 * x, EAX))' |
print '' |
print '#if defined(GNU_ASSEMBLER) && !defined(__DJGPP__) && !defined(__MINGW32__) && !defined(__APPLE__)' |
print '#define GLOBL_FN(x) GLOBL x ; .type x, @function' |
print '#else' |
print '#define GLOBL_FN(x) GLOBL x' |
print '#endif' |
print '' |
print '#if defined(PTHREADS) || defined(WIN32) || defined(BEOS_THREADS)' |
print '# define THREADS' |
print '#endif' |
print '' |
print '#ifdef GLX_USE_TLS' |
print '' |
print '#ifdef GLX_X86_READONLY_TEXT' |
print '# define CTX_INSNS MOV_L(GS:(EAX), EAX)' |
print '#else' |
print '# define CTX_INSNS NOP /* Pad for init_glapi_relocs() */' |
print '#endif' |
print '' |
print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\' |
print 'ALIGNTEXT16;\t\t\t\t\t\t\\' |
print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\' |
print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\' |
print '\tCALL(_x86_get_dispatch) ;\t\t\t\\' |
print '\tCTX_INSNS ; \\' |
print '\tJMP(GL_OFFSET(off))' |
print '' |
print '#elif defined(PTHREADS)' |
print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\' |
print 'ALIGNTEXT16;\t\t\t\t\t\t\\' |
print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\' |
print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\' |
print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\' |
print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\' |
print '\tJE(1f) ;\t\t\t\t\t\\' |
print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\' |
print '1:\tCALL(_x86_get_dispatch) ;\t\t\t\\' |
print '\tJMP(GL_OFFSET(off))' |
print '#elif defined(THREADS)' |
print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\' |
print 'ALIGNTEXT16;\t\t\t\t\t\t\\' |
print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\' |
print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\' |
print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\' |
print '\tTEST_L(EAX, EAX) ;\t\t\t\t\\' |
print '\tJE(1f) ;\t\t\t\t\t\\' |
print '\tJMP(GL_OFFSET(off)) ;\t\t\t\t\\' |
print '1:\tCALL(_glapi_get_dispatch) ;\t\t\t\\' |
print '\tJMP(GL_OFFSET(off))' |
print '#else /* Non-threaded version. */' |
print '# define GL_STUB(fn,off,fn_alt)\t\t\t\\' |
print 'ALIGNTEXT16;\t\t\t\t\t\t\\' |
print 'GLOBL_FN(GL_PREFIX(fn, fn_alt));\t\t\t\\' |
print 'GL_PREFIX(fn, fn_alt):\t\t\t\t\t\\' |
print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\' |
print '\tJMP(GL_OFFSET(off))' |
print '#endif' |
print '' |
print '#ifdef HAVE_ALIAS' |
print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\' |
print '\t.globl\tGL_PREFIX(fn, fn_alt) ;\t\t\t\\' |
print '\t.set\tGL_PREFIX(fn, fn_alt), GL_PREFIX(alias, alias_alt)' |
print '#else' |
print '# define GL_STUB_ALIAS(fn,off,fn_alt,alias,alias_alt)\t\\' |
print ' GL_STUB(fn, off, fn_alt)' |
print '#endif' |
print '' |
print 'SEG_TEXT' |
print '' |
print '#ifdef GLX_USE_TLS' |
print '' |
print '\tGLOBL\tGLNAME(_x86_get_dispatch)' |
print '\tHIDDEN(GLNAME(_x86_get_dispatch))' |
print 'ALIGNTEXT16' |
print 'GLNAME(_x86_get_dispatch):' |
print '\tcall 1f' |
print '1:\tpopl %eax' |
print '\taddl $_GLOBAL_OFFSET_TABLE_+[.-1b], %eax' |
print '\tmovl _glapi_tls_Dispatch@GOTNTPOFF(%eax), %eax' |
print '\tret' |
print '' |
print '#elif defined(PTHREADS)' |
print 'EXTERN GLNAME(_glapi_Dispatch)' |
print 'EXTERN GLNAME(_gl_DispatchTSD)' |
print 'EXTERN GLNAME(pthread_getspecific)' |
print '' |
print 'ALIGNTEXT16' |
print 'GLNAME(_x86_get_dispatch):' |
print '\tSUB_L(CONST(24), ESP)' |
print '\tPUSH_L(GLNAME(_gl_DispatchTSD))' |
print '\tCALL(GLNAME(pthread_getspecific))' |
print '\tADD_L(CONST(28), ESP)' |
print '\tRET' |
print '#elif defined(THREADS)' |
print 'EXTERN GLNAME(_glapi_get_dispatch)' |
print '#endif' |
print '' |
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print '#if defined( GLX_USE_TLS ) && !defined( GLX_X86_READONLY_TEXT )' |
print '\t\t.section\twtext, "awx", @progbits' |
print '#endif /* defined( GLX_USE_TLS ) */' |
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print '' |
print '\t\tALIGNTEXT16' |
print '\t\tGLOBL GLNAME(gl_dispatch_functions_start)' |
print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_start))' |
print 'GLNAME(gl_dispatch_functions_start):' |
print '' |
return |
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def printRealFooter(self): |
print '' |
print '\t\tGLOBL\tGLNAME(gl_dispatch_functions_end)' |
print '\t\tHIDDEN(GLNAME(gl_dispatch_functions_end))' |
print '\t\tALIGNTEXT16' |
print 'GLNAME(gl_dispatch_functions_end):' |
print '' |
print '#if defined(GLX_USE_TLS) && defined(__linux__)' |
print ' .section ".note.ABI-tag", "a"' |
print ' .p2align 2' |
print ' .long 1f - 0f /* name length */' |
print ' .long 3f - 2f /* data length */' |
print ' .long 1 /* note length */' |
print '0: .asciz "GNU" /* vendor name */' |
print '1: .p2align 2' |
print '2: .long 0 /* note data: the ABI tag */' |
print ' .long 2,4,20 /* Minimum kernel version w/TLS */' |
print '3: .p2align 2 /* pad out section */' |
print '#endif /* GLX_USE_TLS */' |
print '' |
print '#if defined (__ELF__) && defined (__linux__)' |
print ' .section .note.GNU-stack,"",%progbits' |
print '#endif' |
return |
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def printBody(self, api): |
for f in api.functionIterateByOffset(): |
name = f.dispatch_name() |
stack = self.get_stack_size(f) |
alt = "%s@%u" % (name, stack) |
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print '\tGL_STUB(%s, %d, %s)' % (name, f.offset, alt) |
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if not f.is_static_entry_point(f.name): |
print '\tHIDDEN(GL_PREFIX(%s, %s))' % (name, alt) |
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for f in api.functionIterateByOffset(): |
name = f.dispatch_name() |
stack = self.get_stack_size(f) |
alt = "%s@%u" % (name, stack) |
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for n in f.entry_points: |
if f.is_static_entry_point(n): |
if n != f.name: |
alt2 = "%s@%u" % (n, stack) |
text = '\tGL_STUB_ALIAS(%s, %d, %s, %s, %s)' % (n, f.offset, alt2, name, alt) |
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if f.has_different_protocol(n): |
print '#ifndef GLX_INDIRECT_RENDERING' |
print text |
print '#endif' |
else: |
print text |
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return |
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def show_usage(): |
print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0] |
sys.exit(1) |
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if __name__ == '__main__': |
file_name = "gl_API.xml" |
mode = "generic" |
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try: |
(args, trail) = getopt.getopt(sys.argv[1:], "m:f:") |
except Exception,e: |
show_usage() |
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for (arg,val) in args: |
if arg == '-m': |
mode = val |
elif arg == "-f": |
file_name = val |
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if mode == "generic": |
printer = PrintGenericStubs() |
else: |
print "ERROR: Invalid mode \"%s\" specified." % mode |
show_usage() |
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api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) |
printer.Print(api) |