summaryrefslogtreecommitdiff
path: root/libc/sysdeps/linux/common/fpu_control.h
diff options
context:
space:
mode:
authorEric Andersen <andersen@codepoet.org>2003-10-08 19:30:43 +0000
committerEric Andersen <andersen@codepoet.org>2003-10-08 19:30:43 +0000
commit027d12aeef4386c638f73a4df7171a5d027604f4 (patch)
tree707c31a6ee5b51ed82369389f849aea2c72ec716 /libc/sysdeps/linux/common/fpu_control.h
parent1bdf3c0a8f4ad63e78559a6963ed62a8c2fc516c (diff)
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.
Diffstat (limited to 'libc/sysdeps/linux/common/fpu_control.h')
-rw-r--r--libc/sysdeps/linux/common/fpu_control.h39
1 files changed, 39 insertions, 0 deletions
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 */