Update coreboot cross toolchain to gcc 4.6.1

- Tested on Mac OS X 10.7.1
- Tested on Ubuntu 10.04 LTS (Lucid Lynx)
- Tested on Ubuntu 11.10 (Oneiric Ocelot)

Please test on Windows and other Linux distributions

Change-Id: I132c01293fc0cff0cfb84556a93c0b8de8e57230
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/250
Tested-by: build bot (Jenkins)
Reviewed-by: Sven Schnelle <svens@stackframe.org>

8 files changed, 128 insertions, 362 deletions

diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 6061f2624a..40444a5541 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -20,8 +20,8 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
 #
 
-CROSSGCC_DATE="August 8th, 2011"
-CROSSGCC_VERSION="1.04"
+CROSSGCC_DATE="October 10th, 2011"
+CROSSGCC_VERSION="1.05"
 
 # default settings
 TARGETDIR=`pwd`/xgcc
@@ -29,17 +29,18 @@ TARGETARCH=i386-elf
 DESTDIR=
 
 # version numbers
-GMP_VERSION=5.0.1
-MPFR_VERSION=3.0.0
-MPC_VERSION=0.8.2
+GMP_VERSION=5.0.2
+MPFR_VERSION=3.1.0
+MPC_VERSION=0.9
 LIBELF_VERSION=0.8.13
-GCC_VERSION=4.5.2
-BINUTILS_VERSION=2.20.1
+GCC_VERSION=4.6.1
+GCC_AUTOCONF_VERSION=2.64
+BINUTILS_VERSION=2.21.1
 GDB_VERSION=7.3.1
 W32API_VERSION=3.17-2
 W32API_VERSION_SHORT=3.17
 MINGWRT_VERSION=3.18
-IASL_VERSION=20110623
+IASL_VERSION=20110922
 
 # archive locations
 GMP_ARCHIVE="ftp://ftp.gmplib.org/pub/gmp-${GMP_VERSION}/gmp-${GMP_VERSION}.tar.bz2"
@@ -146,7 +147,7 @@ GNU General Public License for more details.
 EOF
 }
 
-printf "${blue}Welcome to the ${red}coresystems${blue} cross toolchain builder v$CROSSGCC_VERSION ($CROSSGCC_DATE)${NC}\n\n"
+printf "${blue}Welcome to the ${red}coreboot${blue} cross toolchain builder v$CROSSGCC_VERSION ($CROSSGCC_DATE)${NC}\n\n"
 
 # Look if we have getopt. If not, build it.
 export PATH=$PATH:.
@@ -198,14 +199,12 @@ if [ "$TARGETARCH" = "i386-mingw32" ]; then
 	MINGW_ARCHIVES="$W32API_ARCHIVE $MINGWRT_ARCHIVE"
 fi
 
-if [ ${GCC_VERSION} = "4.5.0" -o ${GCC_VERSION} = "4.6.0" ]; then
-  # coreboot does not like the GOLD linker
-  # USE_GOLD="--enable-gold"
-  USE_GOLD=""
-  GCC_OPTIONS="--enable-lto"
-fi
+# coreboot does not like the GOLD linker
+# USE_GOLD="--enable-gold"
+USE_GOLD=""
+GCC_OPTIONS="--enable-lto"
 
-if [ ${GCC_VERSION} = "4.6.0" ]; then
+if [ ${GCC_VERSION} = "4.6.2" ]; then
   if [ ! -r tarballs/gcc-core-${GCC_VERSION}.tar.bz2 ]; then
     printf "Pre-Release GCC ${GCC_VERSION}, checking out subversion trunk\n"
     mkdir -p tarballs/.tmp
@@ -273,6 +272,7 @@ if [ "$TARGETARCH" = "i386-mingw32" ]; then
 	mv $MINGWRT_DIR/include/* $W32API_DIR/include/* $TARGETDIR/i386-mingw32/sys-include
 fi
 
+CC=cc
 if [ `uname` = "Darwin" ]; then
 	#GCC_OPTIONS="$GCC_OPTIONS --enable-threads=posix"
 
@@ -286,13 +286,14 @@ if [ `uname` = "Darwin" ]; then
 	else
 		OPTIONS="ABI=32"
 	fi
-	# old check:
-	#OPTIONS="ABI=32"
-	#touch .architecture_check.c
-	#gcc .architecture_check.c -c -o .architecture_check.o
-	#ARCH=`file .architecture_check.o |cut -f5 -d\ `
-	#test  "$ARCH" = "x86_64" && OPTIONS="ABI=64"
-	#rm .architecture_check.c .architecture_check.o
+
+	# In Xcode 4 the default compiler was switched to gcc-llvm.
+	# However, this compiler fails to compile gcc 4.6.x. As a
+	# workaround it's possible to compile gcc with gcc-4.2 or
+	# clang.
+	if $CC -v 2>&1 | grep -q LLVM; then
+		CC=clang
+	fi
 fi
 
 mkdir -p build-gmp build-mpfr build-mpc build-libelf build-binutils build-gcc
@@ -321,8 +322,10 @@ fi
 #	ln -s $DESTDIR$TARGETDIR $TARGETDIR
 #fi
 
-# Now set CFLAGS to match GMP CFLAGS.
-HOSTCFLAGS=`grep __GMP_CFLAGS $DESTDIR$TARGETDIR/include/gmp.h |cut -d\" -f2`
+# Now set CFLAGS to match GMP CFLAGS but strip out -pedantic
+# as GCC 4.6.x fails if it's there.
+HOSTCFLAGS=`grep __GMP_CFLAGS $DESTDIR$TARGETDIR/include/gmp.h |cut -d\" -f2 |\
+	    sed s,-pedantic,,`
 
 if [ -f build-mpfr/.success ]; then
 	printf "Skipping MPFR as it is already built\n"
@@ -393,6 +396,12 @@ if [ -f build-binutils/.success ]; then
 else
 printf "Building binutils ${BINUTILS_VERSION} ... "
 (
+	# What a pain: binutils don't come with configure
+	# script anymore. Create it:
+	cd binutils-${BINUTILS_VERSION}/
+	autoconf
+	cd ..
+	# Now build binutils
 	cd build-binutils
 	rm -f .failed
 	../binutils-${BINUTILS_VERSION}/configure --prefix=$TARGETDIR --target=${TARGETARCH} \
@@ -411,6 +420,19 @@ if [ -f build-gcc/.success ]; then
 else
 printf "Building GCC ${GCC_VERSION} ... "
 (
+	# Even worse than binutils: GCC does not come with configure
+	# script anymore, but also enforces an obsolete autoconf version
+	# to create it. This is a poster child of how autotools help make
+	# software portable.
+	cd gcc-${GCC_VERSION}
+	sed '/dnl Ensure exactly this Autoconf version is used/d' \
+		config/override.m4 > config/override.m4.new
+	autoconf_version=`autoconf -V | grep "autoconf" | tr ' ' '\n' | tail -1`
+	sed "s/${GCC_AUTOCONF_VERSION}/${autoconf_version}/g" \
+		config/override.m4.new > config/override.m4
+	autoconf
+	cd ..
+	# Now, finally, we can build gcc:
 	cd build-gcc
 	export PATH=$PATH:$DESTDIR$TARGETDIR/bin
 	rm -f .failed
@@ -419,10 +441,12 @@ printf "Building GCC ${GCC_VERSION} ... "
 	# There's a work-around called CFLAGS_FOR_BUILD and CFLAGS_FOR_TARGET
 	# but it does not seem to work properly. At least the host library
 	# libiberty is not compiled with CFLAGS_FOR_BUILD.
-	CFLAGS_FOR_TARGET="-O2" CFLAGS="$HOSTCFLAGS" CFLAGS_FOR_BUILD="$HOSTCFLAGS" `readlink -f ../gcc-${GCC_VERSION}/configure` \
+	CC="$CC" CFLAGS_FOR_TARGET="-O2" CFLAGS="$HOSTCFLAGS" \
+		CFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \
 		--prefix=$TARGETDIR --libexecdir=$TARGETDIR/lib \
 		--target=${TARGETARCH} --disable-werror --disable-shared \
 		--disable-libssp --disable-bootstrap --disable-nls \
+		--disable-libquadmath \
 		$GCC_OPTIONS --enable-languages="c" $USE_GOLD \
 		--with-gmp=$DESTDIR$TARGETDIR --with-mpfr=$DESTDIR$TARGETDIR \
 		--with-mpc=$DESTDIR$TARGETDIR --with-libelf=$DESTDIR$TARGETDIR \
diff --git a/util/crossgcc/patches/acpica-unix-20110922_no_unused_variables.patch b/util/crossgcc/patches/acpica-unix-20110922_no_unused_variables.patch
new file mode 100644
index 0000000000..1edcb7ff72
--- /dev/null
+++ b/util/crossgcc/patches/acpica-unix-20110922_no_unused_variables.patch
@@ -0,0 +1,48 @@
+diff -x '*.o' -ur acpica-unix-20110922.orig//compiler/aslcompiler.l acpica-unix-20110922/compiler/aslcompiler.l
+--- acpica-unix-20110922.orig//compiler/aslcompiler.l	2011-10-28 23:24:17.333274002 +0200
++++ acpica-unix-20110922/compiler/aslcompiler.l	2011-10-28 23:24:56.669274001 +0200
+@@ -550,7 +550,6 @@
+     void)
+ {
+     ASL_FILE_NODE           *Fnode;
+-    FILE                    *InputFile = NULL;
+ 
+ 
+     Fnode = InputStack;
+@@ -569,7 +568,6 @@
+     /* Update the top-of-stack */
+ 
+     InputStack = Fnode->Next;
+-    InputFile = Fnode->File;
+ 
+     /* Reset global line counter and filename */
+ 
+diff -x '*.o' -ur acpica-unix-20110922.orig//os_specific/service_layers/osunixxf.c acpica-unix-20110922/os_specific/service_layers/osunixxf.c
+--- acpica-unix-20110922.orig//os_specific/service_layers/osunixxf.c	2011-10-28 23:24:17.345274002 +0200
++++ acpica-unix-20110922/os_specific/service_layers/osunixxf.c	2011-10-28 23:56:13.629274002 +0200
+@@ -349,7 +349,6 @@
+     const char              *Fmt,
+     va_list                 Args)
+ {
+-    INT32                   Count = 0;
+     UINT8                   Flags;
+ 
+ 
+@@ -362,7 +361,7 @@
+         {
+             /* Output file is open, send the output there */
+ 
+-            Count = vfprintf (AcpiGbl_DebugFile, Fmt, Args);
++            vfprintf (AcpiGbl_DebugFile, Fmt, Args);
+         }
+         else
+         {
+@@ -374,7 +373,7 @@
+ 
+     if (Flags & ACPI_DB_CONSOLE_OUTPUT)
+     {
+-        Count = vfprintf (AcpiGbl_OutputFile, Fmt, Args);
++        vfprintf (AcpiGbl_OutputFile, Fmt, Args);
+     }
+ }
+ 
diff --git a/util/crossgcc/patches/acpica-unix-20110922_unknown_warnings.patch b/util/crossgcc/patches/acpica-unix-20110922_unknown_warnings.patch
new file mode 100644
index 0000000000..f53be92e62
--- /dev/null
+++ b/util/crossgcc/patches/acpica-unix-20110922_unknown_warnings.patch
@@ -0,0 +1,19 @@
+--- acpica-unix-20110922/compiler/Makefile	2011-09-22 08:59:34.000000000 -0700
++++ acpica-unix-20110922/compiler/Makefile	2011-10-11 23:47:29.000000000 -0700
+@@ -245,15 +245,11 @@
+     -Waggregate-return \
+     -Wchar-subscripts \
+     -Wempty-body \
+-    -Wlogical-op \
+     -Wmissing-declarations \
+     -Wmissing-field-initializers \
+-    -Wmissing-parameter-type \
+     -Wnested-externs \
+-    -Wold-style-declaration \
+     -Wold-style-definition \
+-    -Wredundant-decls \
+-    -Wtype-limits
++    -Wredundant-decls
+ 
+ #
+ # Bison/Flex configuration
diff --git a/util/crossgcc/patches/binutils-2.20_no-i386-svr4-asm-comments.patch b/util/crossgcc/patches/binutils-2.20_no-i386-svr4-asm-comments.patch
deleted file mode 100644
index 3c0cef92a2..0000000000
--- a/util/crossgcc/patches/binutils-2.20_no-i386-svr4-asm-comments.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- binutils-2.20/gas/config/tc-i386.c~	2009-01-20 14:19:04.000000000 +0100
-+++ binutils-2.20/gas/config/tc-i386.c	2009-01-20 14:20:47.000000000 +0100
-@@ -318,6 +318,7 @@
- 	 && !defined (TE_GNU)				\
- 	 && !defined (TE_LINUX)				\
-  	 && !defined (TE_NETWARE)			\
-+	 && 0						\
- 	 && !defined (TE_FreeBSD)			\
- 	 && !defined (TE_NetBSD)))
- /* This array holds the chars that always start a comment.  If the
diff --git a/util/crossgcc/patches/binutils-2.21.1_no-bfd-doc.patch b/util/crossgcc/patches/binutils-2.21.1_no-bfd-doc.patch
new file mode 100644
index 0000000000..4fb9e21d84
--- /dev/null
+++ b/util/crossgcc/patches/binutils-2.21.1_no-bfd-doc.patch
@@ -0,0 +1,11 @@
+--- binutils-2.21.1/bfd/Makefile.in	2011-06-27 01:57:12.000000000 -0700
++++ binutils-2.21.1/bfd/Makefile.in	2011-10-11 21:59:15.000000000 -0700
+@@ -323,7 +323,7 @@
+ RELEASE = y
+ INCDIR = $(srcdir)/../include
+ CSEARCH = -I. -I$(srcdir) -I$(INCDIR)
+-SUBDIRS = doc po
++SUBDIRS = po
+ bfddocdir = doc
+ libbfd_la_LDFLAGS = $(am__append_1) -release `cat libtool-soversion` \
+ 	@SHARED_LDFLAGS@ $(am__empty)
diff --git a/util/crossgcc/patches/gcc-4.4.2_less-junk-in-crtbegin.patch b/util/crossgcc/patches/gcc-4.4.2_less-junk-in-crtbegin.patch
deleted file mode 100644
index a1c248069d..0000000000
--- a/util/crossgcc/patches/gcc-4.4.2_less-junk-in-crtbegin.patch
+++ /dev/null
@@ -1,50 +0,0 @@
---- t/gcc-4.4.2/gcc/crtstuff.c	Fr. Apr 10 01:23:07 2009
-+++ gcc-4.4.2/gcc/crtstuff.c	Di. Jul 28 16:43:28 2009
-@@ -204,6 +204,7 @@
-   = { (func_ptr) (-1) };
- #endif /* __DTOR_LIST__ alternatives */
-
-+#if 0
- #ifdef USE_EH_FRAME_REGISTRY
- /* Stick a label at the beginning of the frame unwind info so we can register
-    and deregister it with the exception handling library code.  */
-@@ -219,6 +220,7 @@
-   __attribute__ ((unused, section(JCR_SECTION_NAME), aligned(sizeof(void*))))
-   = { };
- #endif /* JCR_SECTION_NAME */
-+#endif
-
- #if defined(INIT_SECTION_ASM_OP) || defined(INIT_ARRAY_SECTION_ASM_OP)
-
-@@ -309,6 +311,7 @@
-   }
- #endif /* !defined(FINI_ARRAY_SECTION_ASM_OP) */
-
-+#if 0
- #ifdef USE_EH_FRAME_REGISTRY
- #ifdef CRT_GET_RFIB_DATA
-   /* If we used the new __register_frame_info_bases interface,
-@@ -320,6 +323,7 @@
-     __deregister_frame_info (__EH_FRAME_BEGIN__);
- #endif
- #endif
-+#endif
-
-   completed = 1;
- }
-@@ -333,6 +337,7 @@
-   = { __do_global_dtors_aux };
- #endif /* !defined(FINI_SECTION_ASM_OP) */
-
-+#if 0
- #if defined(USE_EH_FRAME_REGISTRY) || defined(JCR_SECTION_NAME)
- /* Stick a call to __register_frame_info into the .init section.  For some
-    reason calls with no arguments work more reliably in .init, so stick the
-@@ -364,6 +369,7 @@
-     }
- #endif /* JCR_SECTION_NAME */
- }
-+#endif
-
- #ifdef INIT_SECTION_ASM_OP
- CRT_CALL_STATIC_FUNCTION (INIT_SECTION_ASM_OP, frame_dummy)
diff --git a/util/crossgcc/patches/gcc-4.5.1_pragma.patch b/util/crossgcc/patches/gcc-4.5.1_pragma.patch
deleted file mode 100644
index 36ac8f47c6..0000000000
--- a/util/crossgcc/patches/gcc-4.5.1_pragma.patch
+++ /dev/null
@@ -1,10 +0,0 @@
-diff -ur gcc-4.5.1.orig/gcc/config/i386/i386elf.h gcc-4.5.1/gcc/config/i386/i386elf.h
---- gcc-4.5.1.orig/gcc/config/i386/i386elf.h	2010-11-17 19:48:16.184401200 -0700
-+++ gcc-4.5.1/gcc/config/i386/i386elf.h	2010-11-17 20:52:54.443969900 -0700
-@@ -123,3 +123,6 @@
- #undef ASM_OUTPUT_ALIGNED_BSS
- #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
-   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
-+
-+/* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop).  */
-+#define HANDLE_PRAGMA_PACK_PUSH_POP 1
diff --git a/util/crossgcc/patches/mpfr-2.4.2_allpatches_20100308.patch b/util/crossgcc/patches/mpfr-2.4.2_allpatches_20100308.patch
deleted file mode 100644
index 66033378ba..0000000000
--- a/util/crossgcc/patches/mpfr-2.4.2_allpatches_20100308.patch
+++ /dev/null
@@ -1,266 +0,0 @@
-diff -ur mpfr-2.4.2.orig/PATCHES mpfr-2.4.2/PATCHES
---- mpfr-2.4.2.orig/PATCHES	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/PATCHES	2010-03-08 22:28:53.000000000 +0100
-@@ -0,0 +1,3 @@
-+gmp5
-+longlong.h
-+sin_cos_underflow
-diff -ur mpfr-2.4.2.orig/VERSION mpfr-2.4.2/VERSION
---- mpfr-2.4.2.orig/VERSION	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/VERSION	2010-03-08 22:28:53.000000000 +0100
-@@ -1 +1 @@
--2.4.2
-+2.4.2-p3
-diff -ur mpfr-2.4.2.orig/configure mpfr-2.4.2/configure
---- mpfr-2.4.2.orig/configure	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/configure	2010-03-08 22:28:53.000000000 +0100
-@@ -20449,6 +20449,9 @@
- main ()
- {
- 
-+#ifndef BITS_PER_MP_LIMB
-+#define BITS_PER_MP_LIMB GMP_LIMB_BITS
-+#endif
-   return BITS_PER_MP_LIMB == BYTES_PER_MP_LIMB * CHAR_BIT
-          && sizeof(mp_limb_t) == BYTES_PER_MP_LIMB ? 0 : 1;
- 
-diff -ur mpfr-2.4.2.orig/configure.in mpfr-2.4.2/configure.in
---- mpfr-2.4.2.orig/configure.in	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/configure.in	2010-03-08 22:28:53.000000000 +0100
-@@ -424,6 +424,9 @@
- #include "gmp.h"
- #include "gmp-impl.h"
- ]], [[
-+#ifndef BITS_PER_MP_LIMB
-+#define BITS_PER_MP_LIMB GMP_LIMB_BITS
-+#endif
-   return BITS_PER_MP_LIMB == BYTES_PER_MP_LIMB * CHAR_BIT
-          && sizeof(mp_limb_t) == BYTES_PER_MP_LIMB ? 0 : 1;
- ]])], [AC_MSG_RESULT(yes)], [
-diff -ur mpfr-2.4.2.orig/mpfr-impl.h mpfr-2.4.2/mpfr-impl.h
---- mpfr-2.4.2.orig/mpfr-impl.h	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/mpfr-impl.h	2010-03-08 22:28:53.000000000 +0100
-@@ -65,6 +65,12 @@
- # ifndef __GMP_IMPL_H__
- #  include "gmp-impl.h"
- # endif
-+# ifndef BITS_PER_MP_LIMB
-+#  define BITS_PER_MP_LIMB GMP_LIMB_BITS
-+# endif
-+#ifndef mpn_sqr_n
-+# define mpn_sqr_n mpn_sqr
-+#endif
- # ifdef MPFR_NEED_LONGLONG_H
- #  include "longlong.h"
- # endif
-diff -ur mpfr-2.4.2.orig/mpfr-longlong.h mpfr-2.4.2/mpfr-longlong.h
---- mpfr-2.4.2.orig/mpfr-longlong.h	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/mpfr-longlong.h	2010-03-08 22:28:53.000000000 +0100
-@@ -1011,7 +1011,15 @@
- #endif /* __m88000__ */
- 
- #if defined (__mips) && W_TYPE_SIZE == 32
--#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
-+#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
-+#define umul_ppmm(w1, w0, u, v) \
-+  do {									\
-+    UDItype _r;							\
-+    _r = (UDItype) u * v;						\
-+    (w1) = _r >> 32;							\
-+    (w0) = (USItype) _r;						\
-+  } while (0)
-+#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
- #define umul_ppmm(w1, w0, u, v) \
-   __asm__ ("multu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v))
- #else
-@@ -1024,7 +1032,16 @@
- #endif /* __mips */
- 
- #if (defined (__mips) && __mips >= 3) && W_TYPE_SIZE == 64
--#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
-+#if (__GNUC__ >= 5) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 4)
-+typedef unsigned int UTItype __attribute__ ((mode (TI)));
-+#define umul_ppmm(w1, w0, u, v) \
-+  do {									\
-+    UTItype _r;							\
-+    _r = (UTItype) u * v;						\
-+    (w1) = _r >> 64;							\
-+    (w0) = (UDItype) _r;						\
-+  } while (0)
-+#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
- #define umul_ppmm(w1, w0, u, v) \
-   __asm__ ("dmultu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v))
- #else
-diff -ur mpfr-2.4.2.orig/mpfr.h mpfr-2.4.2/mpfr.h
---- mpfr-2.4.2.orig/mpfr.h	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/mpfr.h	2010-03-08 22:28:53.000000000 +0100
-@@ -27,7 +27,7 @@
- #define MPFR_VERSION_MAJOR 2
- #define MPFR_VERSION_MINOR 4
- #define MPFR_VERSION_PATCHLEVEL 2
--#define MPFR_VERSION_STRING "2.4.2"
-+#define MPFR_VERSION_STRING "2.4.2-p3"
- 
- /* Macros dealing with MPFR VERSION */
- #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))
-diff -ur mpfr-2.4.2.orig/sin_cos.c mpfr-2.4.2/sin_cos.c
---- mpfr-2.4.2.orig/sin_cos.c	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/sin_cos.c	2010-03-08 22:28:53.000000000 +0100
-@@ -82,17 +82,19 @@
-       if (y != x)
-         /* y and x differ, thus we can safely try to compute y first */
-         {
--          MPFR_FAST_COMPUTE_IF_SMALL_INPUT (y, x, -2 * expx, 2, 0, rnd_mode,
--                                            { inexy = _inexact;
--                                              goto small_input; });
-+          MPFR_FAST_COMPUTE_IF_SMALL_INPUT (
-+            y, x, -2 * expx, 2, 0, rnd_mode,
-+            { inexy = _inexact;
-+              goto small_input; });
-           if (0)
-             {
-             small_input:
-               /* we can go here only if we can round sin(x) */
--              MPFR_FAST_COMPUTE_IF_SMALL_INPUT (z, __gmpfr_one, -2 * expx,
--                                                1, 0, rnd_mode,
--                                                { inexz = _inexact;
--                                                  goto end; });
-+              MPFR_FAST_COMPUTE_IF_SMALL_INPUT (
-+                z, __gmpfr_one, -2 * expx, 1, 0, rnd_mode,
-+                { inexz = _inexact;
-+                  MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
-+                  goto end; });
-             }
- 
-           /* if we go here, one of the two MPFR_FAST_COMPUTE_IF_SMALL_INPUT
-@@ -101,18 +103,19 @@
-       else /* y and x are the same variable: try to compute z first, which
-               necessarily differs */
-         {
--          MPFR_FAST_COMPUTE_IF_SMALL_INPUT (z, __gmpfr_one, -2 * expx,
--                                            1, 0, rnd_mode,
--                                            { inexz = _inexact;
--                                              goto small_input2; });
-+          MPFR_FAST_COMPUTE_IF_SMALL_INPUT (
-+            z, __gmpfr_one, -2 * expx, 1, 0, rnd_mode,
-+            { inexz = _inexact;
-+              goto small_input2; });
-           if (0)
-             {
-             small_input2:
-               /* we can go here only if we can round cos(x) */
--              MPFR_FAST_COMPUTE_IF_SMALL_INPUT (y, x, -2 * expx, 2, 0,
--                                                rnd_mode,
--                                                { inexy = _inexact;
--                                                  goto end; });
-+              MPFR_FAST_COMPUTE_IF_SMALL_INPUT (
-+                y, x, -2 * expx, 2, 0, rnd_mode,
-+                { inexy = _inexact;
-+                  MPFR_SAVE_EXPO_UPDATE_FLAGS (expo, __gmpfr_flags);
-+                  goto end; });
-             }
-         }
-       m += 2 * (-expx);
-@@ -207,7 +210,6 @@
-   mpfr_clear (xr);
- 
-  end:
--  /* FIXME: update the underflow flag if need be. */
-   MPFR_SAVE_EXPO_FREE (expo);
-   mpfr_check_range (y, inexy, rnd_mode);
-   mpfr_check_range (z, inexz, rnd_mode);
-diff -ur mpfr-2.4.2.orig/tests/tsin_cos.c mpfr-2.4.2/tests/tsin_cos.c
---- mpfr-2.4.2.orig/tests/tsin_cos.c	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/tests/tsin_cos.c	2010-03-08 22:28:53.000000000 +0100
-@@ -382,23 +382,56 @@
- consistency (void)
- {
-   mpfr_t x, s1, s2, c1, c2;
-+  mp_exp_t emin, emax;
-   mp_rnd_t rnd;
-+  unsigned int flags_sin, flags_cos, flags, flags_before, flags_ref;
-+  int inex_sin, inex_cos, inex, inex_ref;
-   int i;
- 
-+  emin = mpfr_get_emin ();
-+  emax = mpfr_get_emax ();
-+
-   for (i = 0; i <= 10000; i++)
-     {
-       mpfr_init2 (x, MPFR_PREC_MIN + (randlimb () % 8));
-       mpfr_inits2 (MPFR_PREC_MIN + (randlimb () % 8), s1, s2, c1, c2,
-                    (mpfr_ptr) 0);
--      tests_default_random (x, 256, -5, 50);
--      rnd = RND_RAND ();
--      mpfr_sin (s1, x, rnd);
--      mpfr_cos (c1, x, rnd);
--      mpfr_sin_cos (s2, c2, x, rnd);
--      if (!(mpfr_equal_p (s1, s2) && mpfr_equal_p (c1, c2)))
-+      if (i < 8 * GMP_RND_MAX)
-+        {
-+          int j = i / GMP_RND_MAX;
-+          if (j & 1)
-+            mpfr_set_emin (MPFR_EMIN_MIN);
-+          mpfr_set_si (x, (j & 2) ? 1 : -1, GMP_RNDN);
-+          mpfr_set_exp (x, mpfr_get_emin ());
-+          rnd = (mpfr_rnd_t) (i % GMP_RND_MAX);
-+          flags_before = 0;
-+          if (j & 4)
-+            mpfr_set_emax (-17);
-+        }
-+      else
-+        {
-+          tests_default_random (x, 256, -5, 50);
-+          rnd = RND_RAND ();
-+          flags_before = (randlimb () & 1) ?
-+            (unsigned int) (MPFR_FLAGS_ALL ^ MPFR_FLAGS_ERANGE) :
-+            (unsigned int) 0;
-+        }
-+      __gmpfr_flags = flags_before;
-+      inex_sin = mpfr_sin (s1, x, rnd);
-+      flags_sin = __gmpfr_flags;
-+      __gmpfr_flags = flags_before;
-+      inex_cos = mpfr_cos (c1, x, rnd);
-+      flags_cos = __gmpfr_flags;
-+      __gmpfr_flags = flags_before;
-+      inex = !!mpfr_sin_cos (s2, c2, x, rnd);
-+      flags = __gmpfr_flags;
-+      inex_ref = inex_sin || inex_cos;
-+      flags_ref = flags_sin | flags_cos;
-+      if (!(mpfr_equal_p (s1, s2) && mpfr_equal_p (c1, c2)) ||
-+          inex != inex_ref || flags != flags_ref)
-         {
--          printf ("mpfr_sin_cos and mpfr_sin/mpfr_cos disagree on %s,\nx = ",
--                  mpfr_print_rnd_mode (rnd));
-+          printf ("mpfr_sin_cos and mpfr_sin/mpfr_cos disagree on %s,"
-+                  " i = %d\nx = ", mpfr_print_rnd_mode (rnd), i);
-           mpfr_dump (x);
-           printf ("s1 = ");
-           mpfr_dump (s1);
-@@ -408,9 +441,16 @@
-           mpfr_dump (c1);
-           printf ("c2 = ");
-           mpfr_dump (c2);
-+          printf ("inex_sin = %d, inex_cos = %d, inex = %d (expected %d)\n",
-+                  inex_sin, inex_cos, inex, inex_ref);
-+          printf ("flags_sin = 0x%x, flags_cos = 0x%x, "
-+                  "flags = 0x%x (expected 0x%x)\n",
-+                  flags_sin, flags_cos, flags, flags_ref);
-           exit (1);
-         }
-       mpfr_clears (x, s1, s2, c1, c2, (mpfr_ptr) 0);
-+      mpfr_set_emin (emin);
-+      mpfr_set_emax (emax);
-     }
- }
- 
-diff -ur mpfr-2.4.2.orig/version.c mpfr-2.4.2/version.c
---- mpfr-2.4.2.orig/version.c	2010-03-08 22:28:46.000000000 +0100
-+++ mpfr-2.4.2/version.c	2010-03-08 22:28:53.000000000 +0100
-@@ -25,5 +25,5 @@
- const char *
- mpfr_get_version (void)
- {
--  return "2.4.2";
-+  return "2.4.2-p3";
- }