[Open64-devel] r2330 - in trunk: doc osprey/be/cg osprey/targia32_x8664/driver

[<sv...@op...>]

Author: dongyuan
Date: 2009-08-20 05:32:13 -0400 (Thu, 20 Aug 2009)
New Revision: 2330

Modified:
   trunk/doc/KernelCompile
   trunk/osprey/be/cg/cgemit.cxx
   trunk/osprey/targia32_x8664/driver/kdriver
Log:
Remove $ for rodata section address reference, linker uses it during linux kernel linking. Refine gcc option filter for kernel compilation. Now we can build Linux kernel 2.6.27.7/9

Modified: trunk/doc/KernelCompile
===================================================================
--- trunk/doc/KernelCompile	2009-08-18 20:06:46 UTC (rev 2329)
+++ trunk/doc/KernelCompile	2009-08-20 09:32:13 UTC (rev 2330)
@@ -1,4 +1,6 @@
 /*
+  Copyright (C) 2008-2009, Tsinghua University.  All rights reserved.
+
   Copyright (C) 2006-2007, Hewlett-Packard Company & Tsinghua University.  All rights reserved.
   
   Redistribution and use in source and binary forms, with or without modification,
@@ -25,9 +27,25 @@
 */
 
 KernelCompile
+=================================================================================================
 
+Menu
+------------------------------------------------
+I.   Introduction
+II.  The scripts
+III. Kernel compilation
+IV.  Known problems
+V.   Developers
+
+I. Introduction
+------------------------------------------------
+This document explains the status of open64 linux kernel compilation.
+Tested platform: x86/IA64/PowerPC32
+
+II.  The scripts
+------------------------------------------------
 We use a shell scripts file to handle options for kernel compilation.
-It locates in kpro64/targia64_ia64_nodebug/driver/
+It locates in osprey/targtarget_target[-nodebug]/driver/
 
 Scripts file kdriver mainly does these things:
 1)ignores these options onlyfor GCC and do not pass them to opencc.
@@ -44,10 +62,28 @@
 I'd like to add it as a seperate file. It is just for kernel building.
 For other application, we still use the origional driver.
 
+III. Kernel compilation
+------------------------------------------------
 When we build kernel, we use it like this:
 
   make CC=kopencc (kopencc=kdriver, just a symbol link)
 
 then, it will help us to reorgnize the options.
 That's the way we use it now.
+
+X86 Example:
+Tested platform: ubuntu linux 8.10/X86 with local 
+gcc 4.2.4/g++4.1.3/Binutils 2.18.93.
+1) download and uncompress linux kernel package (version 2.6.27.7/9)
+2) make i386_defconfig
+3) make CC=kopencc
+
 Good luck and enjoy it.
+
+IV. Known problems
+------------------------------------------------
+We still need a patch for kernel compilation for IA64 and PPC32.
+If you want it, please see our website.
+
+If you want source code and more infomation, please visit our website:
+    http://soft.cs.tsinghua.edu.cn/soft/software.html

Modified: trunk/osprey/be/cg/cgemit.cxx
===================================================================
--- trunk/osprey/be/cg/cgemit.cxx	2009-08-18 20:06:46 UTC (rev 2329)
+++ trunk/osprey/be/cg/cgemit.cxx	2009-08-20 09:32:13 UTC (rev 2330)
@@ -3153,13 +3153,15 @@
       name = ST_name( st );
 
 #if defined (TARG_X8664)
+      //remove "$" for  rodata section address reference
+      //https://bugs.open64.net/show_bug.cgi?id=494
       if (!memory /* bug 14399 */ && !strcmp (name, ".rodata")) {
         // This is the address of a string constant, treat it similar
         // to a numeric constant. (bug 14390)
         if( base_ofst == 0 )
-          sprintf( buf, "$%s", name );
+          sprintf( buf, "%s", name );
         else
-          sprintf( buf, "$%s+%d", name, (int)base_ofst );
+          sprintf( buf, "%s+%d", name, (int)base_ofst );
       }
       else {
 #endif

Modified: trunk/osprey/targia32_x8664/driver/kdriver
===================================================================
--- trunk/osprey/targia32_x8664/driver/kdriver	2009-08-18 20:06:46 UTC (rev 2329)
+++ trunk/osprey/targia32_x8664/driver/kdriver	2009-08-20 09:32:13 UTC (rev 2330)
@@ -11,8 +11,6 @@
 OPENCC_OPTS=" -O2 "
 #Use gcc 4 front end for x86 machine
 OPENCC_OPTS=" $OPENCC_OPTS -m32 -gnu4 "
-#Open64 Debug mode
-OPENCC_OPTS=" $OPENCC_OPTS -keep -show "
 #speculation off for kernel compilation
 #It's only for IA64. If you are compileing kernel for IA64, uncomment next line
 #OPENCC_OPTS=" $OPENCC_OPTS -Wb,-IPFEC:spec=off -IPFEC:spec=off "
@@ -64,7 +62,7 @@
 | -mpreferred-stack-boundary=2 | -march=* | -malign-functions=* 	\
 | -malign-jumps=* | -malign-loops=* | -gstabs				\
 | -fno-optimize-sibling-calls \
-| -mconstant-gp \
+| -mconstant-gp | -mno-mmx | -fno-asynchronous-unwind-tables \
 | -mtune=* \
 | -msoft-float | -mregparm=3 | -maccumulate-outgoing-args \
 | -dynamic-linker )