Some gcc versions need __negti2

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

git-svn-id: svn://coreboot.org/openbios/trunk/openbios-devel@561 f158a5a8-5612-0410-a976-696ce0be7e32

libgcc/__negti2.c

@@ -0,0 +1,53 @@
+/* Extracted from gcc-3.4.1/gcc/config/mips/_tilibi.c */
+/* A few TImode functions needed for TFmode emulated arithmetic.
+   Copyright 2002, 2003 Free Software Foundation, Inc.
+   Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "libgcc.h"
+
+#if defined(__sparc__) || defined(__ppc__)
+#define LIBGCC2_WORDS_BIG_ENDIAN
+#endif
+
+typedef union
+{
+  struct TIstruct {
+#if defined(LIBGCC2_WORDS_BIG_ENDIAN)
+    DItype high, low;
+#else
+    DItype low, high;
+#endif
+  } s;
+  TItype ll;
+} TIunion;
+
+TItype
+__negti2 (TItype u)
+{
+  TIunion w;
+  TIunion uu;
+
+  uu.ll = u;
+
+  w.s.low = -uu.s.low;
+  w.s.high = -uu.s.high - ((UDItype) w.s.low > 0);
+
+  return w.ll;
+}

libgcc/build.xml

@@ -16,6 +16,7 @@
   <object source="__udivmodti4.c" condition="SPARC64"/>
   <object source="__umodti3.c" condition="SPARC64"/>
   <object source="multi3.c" condition="SPARC64"/>
+  <object source="__negti2.c" condition="SPARC64"/>
 
  </library>
 

libgcc/libgcc.h

@@ -38,6 +38,8 @@ __uint128_t __udivti3(__uint128_t num, __uint128_t den);
 __uint128_t __umodti3(__uint128_t num, __uint128_t den);
 
 TItype __multi3 (TItype u, TItype v);
+TItype __negti2 (TItype u);
+
 #endif
 
 #endif /* _LIBGCC_H */