Patch from Atsushi Nemoto (with some additions):

Current uClibc contains only one fpu_control.h and it is i386 version.
This is a patch to use platform specific fpu_control.h.  All new files
come from glibc 2.3.2.  This patch is against 0.9.21 but also can be
applied to CVS as is.

2 files changed, 43 insertions, 1 deletions

diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile
index 5323df366..8bff24f2e 100644
--- a/libc/sysdeps/linux/common/Makefile
+++ b/libc/sysdeps/linux/common/Makefile
@@ -54,7 +54,7 @@ endif
 
 OBJ=$(COBJS) $(MOBJ)
 
-all: $(STR_SYSCALLS) $(OBJ) $(LIBC)
+all: $(STR_SYSCALLS) $(OBJ) $(LIBC) headers
 
 $(LIBC): ar-target
 
@@ -98,6 +98,9 @@ $(TOPDIR)lib/crtn.o:
 	$(AR) $(ARFLAGS) $(TOPDIR)lib/crtn.o
 endif
 
+headers:
+	cd $(TOPDIR)/include && ln -fs ../libc/sysdeps/linux/common/fpu_control.h .
+
 clean:
 	rm -f *.[oa] *~ core crt[in].* *.S
 
diff --git a/libc/sysdeps/linux/common/fpu_control.h b/libc/sysdeps/linux/common/fpu_control.h
new file mode 100644
index 000000000..4a1b07d23
--- /dev/null
+++ b/libc/sysdeps/linux/common/fpu_control.h
@@ -0,0 +1,39 @@
+/* FPU control word definitions.  Stub version.
+   Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   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, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H
+
+#define _FPU_RESERVED 0xffffffff    /* These bits are reserved and not changed.  */
+
+/* The fdlibm code requires no interrupts for exceptions.  Don't
+   change the rounding mode, it would break long double I/O!  */
+#define _FPU_DEFAULT  0x00000000 /* Default value.  */
+
+/* Type of the control word.  */
+typedef unsigned int fpu_control_t;
+
+/* Macros for accessing the hardware control word.  */
+#define _FPU_GETCW(cw) 0
+#define _FPU_SETCW(cw) do { } while (0)
+
+/* Default control word set at startup.  */
+extern fpu_control_t __fpu_control;
+
+#endif /* _FPU_CONTROL_H */