| #!/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 '' |
| 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(HAVE_PTHREAD) || defined(WIN32)' |
| 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(HAVE_PTHREAD)' |
| 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(HAVE_PTHREAD)' |
| 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, %d, %s)' % (name, f.offset, 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, %d, %s, %s, %s)' % (n, f.offset, 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) |