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-rw-r--r--sysdeps/m68k/bits/fenv.h (renamed from sysdeps/m68k/fpu/bits/fenv.h)58
1 files changed, 47 insertions, 11 deletions
diff --git a/sysdeps/m68k/fpu/bits/fenv.h b/sysdeps/m68k/bits/fenv.h
index 29508afc88..7050ceff24 100644
--- a/sysdeps/m68k/fpu/bits/fenv.h
+++ b/sysdeps/m68k/bits/fenv.h
@@ -20,28 +20,30 @@
 #endif
 
 
+#if defined __HAVE_68881__ || defined __HAVE_FPU__ || defined __mcffpu__
+
 /* Define bits representing the exception.  We use the bit positions of
    the appropriate bits in the FPSR Accrued Exception Byte.  */
 enum
   {
     FE_INEXACT =
-#define FE_INEXACT	(1 << 3)
+# define FE_INEXACT	(1 << 3)
       FE_INEXACT,
     FE_DIVBYZERO =
-#define FE_DIVBYZERO	(1 << 4)
+# define FE_DIVBYZERO	(1 << 4)
       FE_DIVBYZERO,
     FE_UNDERFLOW =
-#define FE_UNDERFLOW	(1 << 5)
+# define FE_UNDERFLOW	(1 << 5)
       FE_UNDERFLOW,
     FE_OVERFLOW =
-#define FE_OVERFLOW	(1 << 6)
+# define FE_OVERFLOW	(1 << 6)
       FE_OVERFLOW,
     FE_INVALID =
-#define FE_INVALID	(1 << 7)
+# define FE_INVALID	(1 << 7)
       FE_INVALID
   };
 
-#define FE_ALL_EXCEPT \
+# define FE_ALL_EXCEPT \
 	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
 
 /* The m68k FPU supports all of the four defined rounding modes.  We use
@@ -50,24 +52,44 @@ enum
 enum
   {
     FE_TONEAREST =
-#define FE_TONEAREST	0
+# define FE_TONEAREST	0
       FE_TONEAREST,
     FE_TOWARDZERO =
-#define FE_TOWARDZERO	(1 << 4)
+# define FE_TOWARDZERO	(1 << 4)
       FE_TOWARDZERO,
     FE_DOWNWARD =
-#define FE_DOWNWARD	(2 << 4)
+# define FE_DOWNWARD	(2 << 4)
       FE_DOWNWARD,
     FE_UPWARD =
-#define FE_UPWARD	(3 << 4)
+# define FE_UPWARD	(3 << 4)
       FE_UPWARD
   };
 
+#else
+
+/* In the soft-float case, only rounding to nearest is supported, with
+   no exceptions.  */
+
+# define FE_ALL_EXCEPT 0
+
+enum
+  {
+    __FE_UNDEFINED = -1,
+
+    FE_TONEAREST =
+# define FE_TONEAREST	0
+      FE_TONEAREST
+  };
+
+#endif
+
 
 /* Type representing exception flags.  */
 typedef unsigned int fexcept_t;
 
 
+#if defined __HAVE_68881__ || defined __HAVE_FPU__ || defined __mcffpu__
+
 /* Type representing floating-point environment.  This structure
    corresponds to the layout of the block written by `fmovem'.  */
 typedef struct
@@ -78,10 +100,24 @@ typedef struct
   }
 fenv_t;
 
+#else
+
+/* Keep ABI compatibility with the type used in the generic
+   bits/fenv.h, formerly used for no-FPU ColdFire.  */
+typedef struct
+  {
+    fexcept_t __excepts;
+  }
+fenv_t;
+
+#endif
+
 /* If the default argument is used we use this value.  */
 #define FE_DFL_ENV	((const fenv_t *) -1)
 
-#ifdef __USE_GNU
+#if defined __USE_GNU && (defined __HAVE_68881__	\
+			  || defined __HAVE_FPU__	\
+			  || defined __mcffpu__)
 /* Floating-point environment where none of the exceptions are masked.  */
 # define FE_NOMASK_ENV	((const fenv_t *) -2)
 #endif