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-rw-r--r--include/math.h31
1 files changed, 27 insertions, 4 deletions
diff --git a/include/math.h b/include/math.h
index ae5d6ec70..15bc9ccc6 100644
--- a/include/math.h
+++ b/include/math.h
@@ -46,6 +46,10 @@ __BEGIN_DECLS
/* Get general and ISO C99 specific information. */
#include <bits/mathdef.h>
+#if !(defined _LIBC && (defined NOT_IN_libc && defined IS_IN_libm))
+# define libm_hidden_proto(name, attrs...)
+#endif
+
/* The file <bits/mathcalls.h> contains the prototypes for all the
actual math functions. These macros are used for those prototypes,
so we can easily declare each function as both `name' and `__name',
@@ -55,15 +59,32 @@ __BEGIN_DECLS
__MATHDECL (_Mdouble_,function,suffix, args)
#define __MATHDECL(type, function,suffix, args) \
__MATHDECL_1(type, function,suffix, args); \
- __MATHDECL_1(type, __CONCAT(__,function),suffix, args)
+
#define __MATHCALLX(function,suffix, args, attrib) \
__MATHDECLX (_Mdouble_,function,suffix, args, attrib)
#define __MATHDECLX(type, function,suffix, args, attrib) \
__MATHDECL_1(type, function,suffix, args) __attribute__ (attrib); \
- __MATHDECL_1(type, __CONCAT(__,function),suffix, args) __attribute__ (attrib)
+ __MATHDECLI_MAINVARIANT(function)
+
+
#define __MATHDECL_1(type, function,suffix, args) \
extern type __MATH_PRECNAME(function,suffix) args __THROW
-
+/* Decls which are also used internally in libm.
+ Only the main variant is used internally, no need to try to avoid relocs
+ for the {l,f} variants. */
+#define __MATHCALLI(function,suffix, args) \
+ __MATHDECLI (_Mdouble_,function,suffix, args)
+#define __MATHDECLI(type, function,suffix, args) \
+ __MATHDECL_1(type, function,suffix, args); \
+ __MATHDECLI_MAINVARIANT(function)
+/* Private helpers for purely macro impls below.
+ Only make __foo{,f,l} visible but not (the macro-only) foo. */
+#define __MATHDECL_PRIV(type, function,suffix, args, attrib) \
+ __MATHDECL_1(type, __CONCAT(__,function),suffix, args) \
+ __attribute__ (attrib); \
+ libm_hidden_proto(__MATH_PRECNAME(__##function,suffix))
+
+#define __MATHDECLI_MAINVARIANT libm_hidden_proto
#define _Mdouble_ double
#define __MATH_PRECNAME(name,r) __CONCAT(name,r)
# define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_STD
@@ -72,7 +93,9 @@ __BEGIN_DECLS
#undef _Mdouble_
#undef _Mdouble_BEGIN_NAMESPACE
#undef _Mdouble_END_NAMESPACE
-#undef __MATH_PRECNAME
+#undef __MATH_PRECNAME
+#undef __MATHDECLI_MAINVARIANT
+#define __MATHDECLI_MAINVARIANT(x)
#if defined __USE_MISC || defined __USE_ISOC99