From: Ian Romanick <idr@us.ibm.com>
Date: Mon, 24 May 2004 17:48:21 +0000 (+0000)
Subject: Generates assembly dispatch stubs for SPARC.  Generates different output
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=958103c77c7857ed3ba768814ceccd944567c0f8;p=mesa.git

Generates assembly dispatch stubs for SPARC.  Generates different output
than glsparcasm.py, but the assembled code should be the same.  The seems to
only work with GCC version >= 3.0.  The older preprocessor doesn't like the
embedded # in the GLOBL_FN macro.  On the SPARC system I used, /ccs/bin/as
didn't like the @function, it would only accept #function.
---

diff --git a/src/mesa/glapi/gl_SPARC_asm.py b/src/mesa/glapi/gl_SPARC_asm.py
new file mode 100644
index 00000000000..e547261af22
--- /dev/null
+++ b/src/mesa/glapi/gl_SPARC_asm.py
@@ -0,0 +1,134 @@
+#!/usr/bin/python2
+
+# (C) Copyright IBM Corporation 2004
+# 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>
+
+from xml.sax import saxutils
+from xml.sax import make_parser
+from xml.sax.handler import feature_namespaces
+
+import gl_XML
+import license
+import sys, getopt
+
+class PrintGenericStubs(gl_XML.FilterGLAPISpecBase):
+	name = "gl_SPARC_asm.py (from Mesa)"
+
+	def __init__(self):
+		gl_XML.FilterGLAPISpecBase.__init__(self)
+		self.license = license.bsd_license_template % ( \
+"""Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
+
+
+	def printRealHeader(self):
+		print '#include "glapioffsets.h"'
+		print ''
+		print '#define GLOBL_FN(x) .globl x ; .type x,#function'
+		print ''
+		print '#if defined(__sparc_v9__) && !defined(__linux__)'
+		print '#  define GL_STUB(fn,off)\t\t\t\t\\'
+		print 'GLOBL_FN(fn) ; fn:\t\t\t\t\t\\'
+		print '\tsethi\t%hi(0x00000000), %g2 ;\t\t\t\\'
+		print '\tsethi\t%hi(0x00000000), %g1 ;\t\t\t\\'
+		print '\tor\t%g2, %lo(0x00000000), %g2 ;\t\t\\'
+		print '\tor\t%g1, %lo(0x00000000), %g1 ;\t\t\\'
+		print '\tsllx\t%g2, 32, %g2 ;\t\t\t\t\\'
+		print '\tldx\t[%g1 + %g2], %g1 ;\t\t\t\\'
+		print '\tsethi\t%hi(8 * off), %g2 ;\t\t\t\\'
+		print '\tor\t%g2, %lo(8 * off), %g2 ;\t\t\\'
+		print '\tldx\t[%g1 + %g2], %g3 ;\t\t\t\\'
+		print '\tjmpl\t%g3, %g0 ;\t\t\t\t\\'
+		print '\tnop'
+		print '#else'
+		print '#  define GL_STUB(fn,off)\t\t\t\t\\'
+		print 'GLOBL_FN(fn) ; fn:\t\t\t\t\t\\'
+		print '\tsethi\t%hi(0x00000000), %g1 ;\t\t\t\\'
+		print '\tld\t[%g1 + %lo(0x00000000)], %g1 ;\t\t\\'
+		print '\tld\t[%g1 + (4 * _gloffset_NewList)], %g3 ;\t\\'
+		print '\tjmpl\t%g3, %g0 ;\t\t\t\t\\'
+		print '\tnop'
+		print '#endif'
+		print ''
+		print '.text'
+		print '.align 32'
+		print 'GLOBL_FN(__glapi_sparc_icache_flush)'
+		print '__glapi_sparc_icache_flush: /* %o0 = insn_addr */'
+		print '\tflush\t%o0'
+		print '\tretl'
+		print '\tnop'
+		print ''
+		print '.data'
+		print '.align 64'
+		print ''
+		print 'GLOBL_FN(_mesa_sparc_glapi_begin)'
+		print '_mesa_sparc_glapi_begin:'
+		print ''
+		return
+
+	def printRealFooter(self):
+		print ''
+		print 'GLOBL_FN(_mesa_sparc_glapi_end)'
+		print '_mesa_sparc_glapi_end:'
+		return
+
+	def printFunction(self, f):
+		print '\tGL_STUB(gl%s, _gloffset_%s)' % (f.name, f.real_name)
+		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":
+		dh = PrintGenericStubs()
+	else:
+		print "ERROR: Invalid mode \"%s\" specified." % mode
+		show_usage()
+
+	parser = make_parser()
+	parser.setFeature(feature_namespaces, 0)
+	parser.setContentHandler(dh)
+
+	f = open(file_name)
+
+	dh.printHeader()
+	parser.parse(f)
+	dh.printFooter()