summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorGabe Black <gblack@eecs.umich.edu>2006-02-18 20:58:08 -0500
committerGabe Black <gblack@eecs.umich.edu>2006-02-18 20:58:08 -0500
commitdb40f256164028e1ccf10c4232160537f15a0943 (patch)
tree5b5f053623a6501f4d7e8d8d36376e2a8a39affc /arch
parent00f451cc02373a22023f1e32ba3823a1d07adb42 (diff)
downloadgem5-db40f256164028e1ccf10c4232160537f15a0943.tar.xz
Changed the isa from a class to a namespace, untemplated StaticInst and StaticInstPtr, converted things to using TheISA, cleaned up some header file paths, and improved the system which pulls header files from the appropriate architecture.
--HG-- extra : convert_revision : 5087333fbaf442efb4b55e70376244629fff507d
Diffstat (limited to 'arch')
-rw-r--r--arch/isa_specific.hh76
1 files changed, 76 insertions, 0 deletions
diff --git a/arch/isa_specific.hh b/arch/isa_specific.hh
new file mode 100644
index 000000000..e11e6c292
--- /dev/null
+++ b/arch/isa_specific.hh
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2003-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __ARCH_ISA_SPECIFIC_HH__
+#define __ARCH_ISA_SPECIFIC_HH__
+
+//This file provides a mechanism for other source code to bring in
+//files from the ISA being compiled with
+
+//These are constants so you can selective compile code based on the isa
+//To use them, do something like
+//
+//#if THE_ISA == YOUR_FAVORITE_ISA
+// conditional_code
+//#endif
+//
+//Note that this is how this file sets up the other isa "hooks"
+
+//These macros have numerical values because otherwise the preprocessor
+//would treat them as 0 in comparisons.
+#define ALPHA_ISA 21064
+#define SPARC_ISA 42
+#define MIPS_ISA 1337
+
+//These tell the preprocessor where to find the files of a particular
+//ISA, and set the "TheISA" macro for use elsewhere.
+#if THE_ISA == ALPHA_ISA
+ #define ISA_PATH arch/alpha/
+ #define TheISA AlphaISA
+#elif THE_ISA == SPARC_ISA
+ #define ISA_PATH arch/sparc/
+ #define TheISA SparcISA
+#elif THE_ISA == MIPS_ISA
+ #define ISA_PATH arch/mips/
+ #define TheISA MipsISA
+#else
+ #error "THE_ISA not set"
+#endif
+//The following is some preprocessor voodoo to allow redirectable includes
+//The end result is the ISA_INCLUDE() macro which is used inside stub
+//include files in arch and which redirect to the isa in use.
+#define STRINGIFY(token) #token
+#define EXPAND(token) token
+#define STICK_TOGETHER(firstpart, secondpart) \
+ EXPAND(firstpart)EXPAND(secondpart)
+#define EXPAND_AND_STRINGIFY(pathAndFile) \
+ STRINGIFY(pathAndFile)
+#define ISA_INCLUDE(filename) \
+ EXPAND_AND_STRINGIFY(STICK_TOGETHER(ISA_PATH, filename))
+
+#endif