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-rw-r--r--newlib/libc/include/machine/ieeefp.h11
-rw-r--r--newlib/libc/include/math.h12
2 files changed, 22 insertions, 1 deletions
diff --git a/newlib/libc/include/machine/ieeefp.h b/newlib/libc/include/machine/ieeefp.h
index aa8a1903b..b0042bbf6 100644
--- a/newlib/libc/include/machine/ieeefp.h
+++ b/newlib/libc/include/machine/ieeefp.h
@@ -87,6 +87,9 @@
# define __IEEE_BYTES_LITTLE_ENDIAN
# endif
#endif
+#ifndef __SOFTFP__
+# define _SUPPORTS_ERREXCEPT
+#endif
#endif
#if defined (__aarch64__)
@@ -96,6 +99,9 @@
#define __IEEE_BIG_ENDIAN
#endif
#define __OBSOLETE_MATH_DEFAULT 0
+#ifdef __ARM_FP
+# define _SUPPORTS_ERREXCEPT
+#endif
#endif
#ifdef __epiphany__
@@ -189,10 +195,14 @@
#ifdef __i386__
#define __IEEE_LITTLE_ENDIAN
+# define _SUPPORTS_ERREXCEPT
#endif
#ifdef __riscv
#define __IEEE_LITTLE_ENDIAN
+#ifdef __riscv_flen
+# define _SUPPORTS_ERREXCEPT
+#endif
#endif
#ifdef __i960__
@@ -386,6 +396,7 @@
#ifdef __x86_64__
#define __IEEE_LITTLE_ENDIAN
+# define _SUPPORTS_ERREXCEPT
#endif
#ifdef __mep__
diff --git a/newlib/libc/include/math.h b/newlib/libc/include/math.h
index 1efc5b92c..9fd82d9fa 100644
--- a/newlib/libc/include/math.h
+++ b/newlib/libc/include/math.h
@@ -188,7 +188,17 @@ extern int isnan (double);
# define MATH_ERREXCEPT 2
#endif
#ifndef math_errhandling
-# define math_errhandling MATH_ERRNO
+# ifdef _IEEE_LIBM
+# define _MATH_ERRHANDLING_ERRNO 0
+# else
+# define _MATH_ERRHANDLING_ERRNO MATH_ERRNO
+# endif
+# ifdef _SUPPORTS_ERREXCEPT
+# define _MATH_ERRHANDLING_ERREXCEPT MATH_ERREXCEPT
+# else
+# define _MATH_ERRHANDLING_ERREXCEPT 0
+# endif
+# define math_errhandling (_MATH_ERRHANDLING_ERRNO | _MATH_ERRHANDLING_ERREXCEPT)
#endif
extern int __isinff (float x);