Hello,
Thanks and sorry for the troubles I caused. Next time I will prepare
patches for it against glibc's developer repository.
As I understand the README file in soft-fp, just those files affected
by my patch need to be merged from glibc.
As the mingw targets are using by defaul ms-struct layout, the
following patch is
required to fix floating-point-software-emulation failures caused by
difference in
handling consecutive bitfields with different types.
ChangeLog
2012-03-01 Kai Tietz <kti...@redhat.com>
* soft-fp/extended.h: Imported from glibc upstream.
* soft-fp/float.h: Likewise.
* soft-fp/single.h: Likewise
* soft-fp/double.h: Likewise
* soft-fp/soft-fp.h: Likewise.
Ok for apply ?
Regards,
Kai
Index: soft-fp/extended.h
===================================================================
--- soft-fp/extended.h (revision 184753)
+++ soft-fp/extended.h (working copy)
@@ -1,6 +1,6 @@
/* Software floating-point emulation.
Definitions for IEEE Extended Precision.
- Copyright (C) 1999,2006,2007 Free Software Foundation, Inc.
+ Copyright (C) 1999,2006,2007,2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek (j...@ultra.linux.cz).
@@ -24,9 +24,8 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel, kid. Go buy yourself a real computer."
@@ -64,7 +63,7 @@
union _FP_UNION_E
{
XFtype flt;
- struct
+ struct _FP_STRUCT_LAYOUT
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned long pad1 : _FP_W_TYPE_SIZE;
@@ -263,7 +262,7 @@
union _FP_UNION_E
{
XFtype flt;
- struct {
+ struct _FP_STRUCT_LAYOUT {
#if __BYTE_ORDER == __BIG_ENDIAN
_FP_W_TYPE pad : (_FP_W_TYPE_SIZE - 1 - _FP_EXPBITS_E);
unsigned sign : 1;
Index: soft-fp/single.h
===================================================================
--- soft-fp/single.h (revision 184753)
+++ soft-fp/single.h (working copy)
@@ -1,6 +1,6 @@
/* Software floating-point emulation.
Definitions for IEEE Single Precision.
- Copyright (C) 1997,1998,1999,2006 Free Software Foundation, Inc.
+ Copyright (C) 1997,1998,1999,2006,2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (r...@cygnus.com),
Jakub Jelinek (j...@ultra.linux.cz),
@@ -27,9 +27,8 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
@@ -58,7 +57,7 @@
union _FP_UNION_S
{
SFtype flt;
- struct {
+ struct _FP_STRUCT_LAYOUT {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_S;
Index: soft-fp/double.h
===================================================================
--- soft-fp/double.h (revision 184753)
+++ soft-fp/double.h (working copy)
@@ -1,6 +1,6 @@
/* Software floating-point emulation.
Definitions for IEEE Double Precision
- Copyright (C) 1997, 1998, 1999, 2006, 2007, 2008, 2009
+ Copyright (C) 1997, 1998, 1999, 2006, 2007, 2008, 2009, 2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (r...@cygnus.com),
@@ -28,9 +28,8 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
@@ -68,7 +67,7 @@
union _FP_UNION_D
{
DFtype flt;
- struct {
+ struct _FP_STRUCT_LAYOUT {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_D;
@@ -167,7 +166,7 @@
union _FP_UNION_D
{
DFtype flt;
- struct {
+ struct _FP_STRUCT_LAYOUT {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_D;
Index: soft-fp/quad.h
===================================================================
--- soft-fp/quad.h (revision 184753)
+++ soft-fp/quad.h (working copy)
@@ -1,6 +1,6 @@
/* Software floating-point emulation.
Definitions for IEEE Quad Precision.
- Copyright (C) 1997,1998,1999,2006,2007 Free Software Foundation, Inc.
+ Copyright (C) 1997,1998,1999,2006,2007,2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (r...@cygnus.com),
Jakub Jelinek (j...@ultra.linux.cz),
@@ -27,9 +27,8 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel, kid. Go buy yourself a real computer."
@@ -67,7 +66,7 @@
union _FP_UNION_Q
{
TFtype flt;
- struct
+ struct _FP_STRUCT_LAYOUT
{
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
@@ -171,10 +170,10 @@
union _FP_UNION_Q
{
TFtype flt /* __attribute__((mode(TF))) */ ;
- struct {
+ struct _FP_STRUCT_LAYOUT {
_FP_W_TYPE a, b;
} longs;
- struct {
+ struct _FP_STRUCT_LAYOUT {
#if __BYTE_ORDER == __BIG_ENDIAN
unsigned sign : 1;
unsigned exp : _FP_EXPBITS_Q;
Index: soft-fp/soft-fp.h
===================================================================
--- soft-fp/soft-fp.h (revision 184753)
+++ soft-fp/soft-fp.h (working copy)
@@ -1,5 +1,5 @@
/* Software floating-point emulation.
- Copyright (C) 1997,1998,1999,2000,2002,2003,2005,2006
+ Copyright (C) 1997,1998,1999,2000,2002,2003,2005,2006,2007,2012
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (r...@cygnus.com),
@@ -27,9 +27,8 @@
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
- MA 02110-1301, USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef SOFT_FP_H
#define SOFT_FP_H
@@ -85,6 +84,16 @@
#define FP_EX_DENORM 0
#endif
+/* _FP_STRUCT_LAYOUT may be defined as an attribute to determine the
+ struct layout variant used for structures where bit-fields are used
+ to access specific parts of binary floating-point numbers. This is
+ required for systems where the default ABI uses struct layout with
+ differences in how consecutive bit-fields are laid out from the
+ default expected by soft-fp. */
+#ifndef _FP_STRUCT_LAYOUT
+#define _FP_STRUCT_LAYOUT
+#endif
+
#ifdef _FP_DECL_EX
#define FP_DECL_EX \
int _fex = 0; \
