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authorSzabolcs Nagy <szabolcs.nagy@arm.com>2017-09-12 12:44:18 +0100
committerSzabolcs Nagy <szabolcs.nagy@arm.com>2017-10-02 14:38:54 +0100
commitf7a0b063e7fc81d0eff1e8b2b169876bdfb4cc44 (patch)
tree9ef1f2bc0a65970f29606ab90348159a8e67cc35 /sysdeps/ieee754/flt-32/e_expf.c
parent72d3d281080be9f674982067d72874fd6cdb4b64 (diff)
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Do not wrap expf and exp2f
The new generic expf and exp2f code don't need wrappers any more, they
set errno inline, so only use the wrappers on targets that need it.
(If the wrapper is needed, then the top level wrapper code is included,
otherwise empty w_exp*f.c is used to suppress the wrapper.)

A powerpc64 expf implementation includes the expf c code directly which
needed some changes.

	* sysdeps/ieee754/flt-32/e_exp2f.c (__exp2f): Define without wrapper.
	* sysdeps/ieee754/flt-32/e_expf.c (__expf): Likewise
	* sysdeps/ieee754/flt-32/w_exp2f.c: New file.
	* sysdeps/ieee754/flt-32/w_expf.c: New file.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/e_expf-ppc64.c: Update for
	the new expf code.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/w_expf.c: New file.
	* sysdeps/powerpc/powerpc64/power8/fpu/w_expf.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_exp2f.c: New file.
	* sysdeps/m68k/m680x0/fpu/w_expf.c: New file.
	* sysdeps/i386/fpu/w_exp2f.c: New file.
	* sysdeps/i386/fpu/w_expf.c: New file.
	* sysdeps/i386/i686/fpu/multiarch/w_expf.c: New file.
	* sysdeps/x86_64/fpu/w_expf.c: New file.
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_expf.c')
-rw-r--r--sysdeps/ieee754/flt-32/e_expf.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/sysdeps/ieee754/flt-32/e_expf.c b/sysdeps/ieee754/flt-32/e_expf.c
index 12239e1862..74a383a02c 100644
--- a/sysdeps/ieee754/flt-32/e_expf.c
+++ b/sysdeps/ieee754/flt-32/e_expf.c
@@ -16,8 +16,14 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#ifdef __expf
+# undef libm_hidden_proto
+# define libm_hidden_proto(ignored)
+#endif
+
 #include <math.h>
 #include <stdint.h>
+#include <shlib-compat.h>
 #include "math_config.h"
 
 /*
@@ -42,7 +48,7 @@ top12 (float x)
 }
 
 float
-__ieee754_expf (float x)
+__expf (float x)
 {
   uint32_t abstop;
   uint64_t ki, t;
@@ -99,4 +105,10 @@ __ieee754_expf (float x)
   y = y * s;
   return (float) y;
 }
-strong_alias (__ieee754_expf, __expf_finite)
+
+#ifndef __expf
+hidden_def (__expf)
+strong_alias (__expf, __ieee754_expf)
+strong_alias (__expf, __expf_finite)
+versioned_symbol (libm, __expf, expf, GLIBC_2_27);
+#endif