diff options
Diffstat (limited to 'mesalib/src/mesa/glapi/gen/gl_x86_asm.py')
| -rw-r--r-- | mesalib/src/mesa/glapi/gen/gl_x86_asm.py | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/mesalib/src/mesa/glapi/gen/gl_x86_asm.py b/mesalib/src/mesa/glapi/gen/gl_x86_asm.py new file mode 100644 index 000000000..10dfa1ddb --- /dev/null +++ b/mesalib/src/mesa/glapi/gen/gl_x86_asm.py @@ -0,0 +1,270 @@ +#!/usr/bin/env python + +# (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> + +import license +import gl_XML, glX_XML +import sys, getopt + +class PrintGenericStubs(gl_XML.gl_print_base): + + def __init__(self): + gl_XML.gl_print_base.__init__(self) + + 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 + + + def get_stack_size(self, f): + size = 0 + for p in f.parameterIterator(): + if p.is_padding: + continue + + size += p.get_stack_size() + + return size + + + def printRealHeader(self): + print '#include "x86/assyntax.h"' + print '#include "glapi/glapioffsets.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_THREADS) || 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 '' + + print '#if defined( GLX_USE_TLS ) && !defined( GLX_X86_READONLY_TEXT )' + print '\t\t.section\twtext, "awx", @progbits' + print '#endif /* defined( GLX_USE_TLS ) */' + + 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 + + + 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 + + + def printBody(self, api): + for f in api.functionIterateByOffset(): + name = f.dispatch_name() + stack = self.get_stack_size(f) + alt = "%s@%u" % (name, stack) + + print '\tGL_STUB(%s, _gloffset_%s, %s)' % (name, f.name, alt) + + if not f.is_static_entry_point(f.name): + print '\tHIDDEN(GL_PREFIX(%s, %s))' % (name, alt) + + + for f in api.functionIterateByOffset(): + name = f.dispatch_name() + stack = self.get_stack_size(f) + alt = "%s@%u" % (name, stack) + + 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, _gloffset_%s, %s, %s, %s)' % (n, f.name, alt2, name, alt) + + if f.has_different_protocol(n): + print '#ifndef GLX_INDIRECT_RENDERING' + print text + print '#endif' + else: + print text + + return + +def show_usage(): + print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0] + sys.exit(1) + +if __name__ == '__main__': + file_name = "gl_API.xml" + mode = "generic" + + try: + (args, trail) = getopt.getopt(sys.argv[1:], "m:f:") + except Exception,e: + show_usage() + + for (arg,val) in args: + if arg == '-m': + mode = val + elif arg == "-f": + file_name = val + + if mode == "generic": + printer = PrintGenericStubs() + else: + print "ERROR: Invalid mode \"%s\" specified." % mode + show_usage() + + api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) + printer.Print(api) |