re PR target/39048 (gcc 4.4.0 20090131 - Extra underscore hides libgcc's soft-fp functions from Testsuite causing FAILs + naming error in libgcc)

	gcc:
	PR target/39048
	* config.gcc (i[34567]86-*-solaris2*): Add i386/t-fprules-softfp
	and soft-fp/t-softfp to tmake_file.
	* config/i386/sol2.h (LIBGCC2_HAS_TF_MODE): Redefine.
	(LIBGCC2_TF_CEXT): Define.
	(TF_SIZE): Define.

	libgcc:
	PR target/39048
	* config.host (i[34567]86-*-solaris2): Handle 32-bit Solaris 2/x86
	like other remaining 32-bit x86 OSes.
	* config/i386/32/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Support Sun
	assembler syntax.
	* config/i386/libgcc-sol2.ver: New file.
	* config/i386/t-sol2 (SHLIB_MAPFILES): Add it.

Co-Authored-By: Uros Bizjak <ubizjak@gmail.com>

From-SVN: r157854

3 files changed, 100 insertions, 1 deletions

diff --git a/libgcc/config/i386/32/sfp-machine.h b/libgcc/config/i386/32/sfp-machine.h
index 85ddb74..ccff314 100644
--- a/libgcc/config/i386/32/sfp-machine.h
+++ b/libgcc/config/i386/32/sfp-machine.h
@@ -136,7 +136,7 @@ struct fenv
     if (_fex & FP_EX_INVALID)						\
       {									\
 	float f = 0.0;							\
-	__asm__ __volatile__ ("fdiv %0" : "+t" (f));			\
+	__asm__ __volatile__ ("fdiv {%y0, %0|%0, %y0}" : "+t" (f));	\
 	__asm__ __volatile__ ("fwait");					\
       }									\
     if (_fex & FP_EX_DIVZERO)						\
diff --git a/libgcc/config/i386/libgcc-sol2.ver b/libgcc/config/i386/libgcc-sol2.ver
new file mode 100644
index 0000000..8d94d3c
--- /dev/null
+++ b/libgcc/config/i386/libgcc-sol2.ver
@@ -0,0 +1,96 @@
+# Copyright (C) 2010 Free Software Foundation, Inc.
+#
+# 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 3, 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 COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+# 128 bit long double support was introduced with GCC 4.5.0 for Solaris 2.
+# These lines make the symbols to get a @@GCC_4.5.0.
+
+%exclude {
+  __addtf3
+  __copysigntf3
+  __divtc3
+  __divtf3
+  __eqtf2
+  __extenddftf2
+  __extendsftf2
+  __extendxftf2
+  __fabstf2
+  __fixtfdi
+  __fixtfsi
+  __fixtfti
+  __fixunstfdi
+  __fixunstfsi
+  __fixunstfti
+  __floatditf
+  __floatsitf
+  __floattitf
+  __floatunditf
+  __floatunsitf
+  __floatuntitf
+  __getf2
+  __gttf2
+  __letf2
+  __lttf2
+  __multc3
+  __multf3
+  __negtf2
+  __netf2
+  __powitf2
+  __subtf3
+  __trunctfdf2
+  __trunctfsf2
+  __trunctfxf2
+  __unordtf2
+}
+
+GCC_4.5.0 {
+  __addtf3
+  __copysigntf3
+  __divtc3
+  __divtf3
+  __eqtf2
+  __extenddftf2
+  __extendsftf2
+  __extendxftf2
+  __fabstf2
+  __fixtfdi
+  __fixtfsi
+  __fixtfti
+  __fixunstfdi
+  __fixunstfsi
+  __fixunstfti
+  __floatditf
+  __floatsitf
+  __floattitf
+  __floatunditf
+  __floatunsitf
+  __floatuntitf
+  __getf2
+  __gttf2
+  __letf2
+  __lttf2
+  __multc3
+  __multf3
+  __negtf2
+  __netf2
+  __powitf2
+  __subtf3
+  __trunctfdf2
+  __trunctfsf2
+  __trunctfxf2
+  __unordtf2
+}
diff --git a/libgcc/config/i386/t-sol2 b/libgcc/config/i386/t-sol2
index 351d7fb..883b1a9 100644
--- a/libgcc/config/i386/t-sol2
+++ b/libgcc/config/i386/t-sol2
@@ -32,3 +32,6 @@ $(T)crtn.o: $(gcc_srcdir)/config/i386/sol2-cn.asm $(GCC_PASSES)
 
 CRTSTUFF_T_CFLAGS = -fPIC -O2
 TARGET_LIBGCC2_CFLAGS = -fPIC
+
+# Add support for the introduction of 128-bit long double.
+SHLIB_MAPFILES += $(srcdir)/config/i386/libgcc-sol2.ver