summaryrefslogtreecommitdiff
path: root/src/mesa/glapi/gl_x86_asm.py
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/glapi/gl_x86_asm.py')
-rw-r--r--src/mesa/glapi/gl_x86_asm.py244
1 files changed, 244 insertions, 0 deletions
diff --git a/src/mesa/glapi/gl_x86_asm.py b/src/mesa/glapi/gl_x86_asm.py
new file mode 100644
index 0000000..899cce6
--- /dev/null
+++ b/src/mesa/glapi/gl_x86_asm.py
@@ -0,0 +1,244 @@
+#!/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 gl_XML, license
+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():
+ size += p.get_stack_size()
+
+ return size
+
+
+ def printRealHeader(self):
+ print '#include "assyntax.h"'
+ print '#include "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 '# 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__)'
+ 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(USE_XTHREADS) || defined(SOLARIS_THREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)'
+ print '# define THREADS'
+ print '#endif'
+ print ''
+ print '#ifdef GLX_USE_TLS'
+ 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 '\tNOP ;\t\t\t\t\t\t\\'
+ 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 '\tmovl\t%gs:_glapi_tls_Dispatch@NTPOFF, %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 )'
+ 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():
+ stack = self.get_stack_size(f)
+
+ alt = "%s@%u" % (f.name, stack)
+ print '\tGL_STUB(%s, _gloffset_%s, %s)' % (f.name, f.name, alt)
+
+ for f in api.functionIterateByOffset():
+ stack = self.get_stack_size(f)
+
+ alt = "%s@%u" % (f.name, stack)
+
+ for n in f.entry_points:
+ if n != f.name:
+ alt2 = "%s@%u" % (n, stack)
+ print '\tGL_STUB_ALIAS(%s, _gloffset_%s, %s, %s, %s)' % (n, f.name, alt2, f.name, alt)
+
+ 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 )
+
+ printer.Print( api )