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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
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')
-rw-r--r--sysdeps/ieee754/flt-32/e_exp2f.c9
-rw-r--r--sysdeps/ieee754/flt-32/e_expf.c16
-rw-r--r--sysdeps/ieee754/flt-32/w_exp2f.c1
-rw-r--r--sysdeps/ieee754/flt-32/w_expf.c1
4 files changed, 23 insertions, 4 deletions
diff --git a/sysdeps/ieee754/flt-32/e_exp2f.c b/sysdeps/ieee754/flt-32/e_exp2f.c
index 72b7d8829f..31b660b07b 100644
--- a/sysdeps/ieee754/flt-32/e_exp2f.c
+++ b/sysdeps/ieee754/flt-32/e_exp2f.c
@@ -18,6 +18,7 @@
#include <math.h>
#include <stdint.h>
+#include <shlib-compat.h>
#include "math_config.h"
/*
@@ -42,7 +43,7 @@ top12 (float x)
}
float
-__ieee754_exp2f (float x)
+__exp2f (float x)
{
uint32_t abstop;
uint64_t ki, t;
@@ -85,4 +86,8 @@ __ieee754_exp2f (float x)
y = y * s;
return (float) y;
}
-strong_alias (__ieee754_exp2f, __exp2f_finite)
+#ifndef __exp2f
+strong_alias (__exp2f, __ieee754_exp2f)
+strong_alias (__exp2f, __exp2f_finite)
+versioned_symbol (libm, __exp2f, exp2f, GLIBC_2_27);
+#endif
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
diff --git a/sysdeps/ieee754/flt-32/w_exp2f.c b/sysdeps/ieee754/flt-32/w_exp2f.c
new file mode 100644
index 0000000000..1cc8931700
--- /dev/null
+++ b/sysdeps/ieee754/flt-32/w_exp2f.c
@@ -0,0 +1 @@
+/* Not needed. */
diff --git a/sysdeps/ieee754/flt-32/w_expf.c b/sysdeps/ieee754/flt-32/w_expf.c
new file mode 100644
index 0000000000..1cc8931700
--- /dev/null
+++ b/sysdeps/ieee754/flt-32/w_expf.c
@@ -0,0 +1 @@
+/* Not needed. */