1 files changed, 18 insertions, 0 deletions
diff --git a/libm/e_log.c b/libm/e_log.c
index 721746a16..4a82b6e50 100644
--- a/libm/e_log.c
+++ b/libm/e_log.c
@@ -127,3 +127,21 @@ double attribute_hidden __ieee754_log(double x)
 		     return dk*ln2_hi-((s*(f-R)-dk*ln2_lo)-f);
 	}
 }
+
+/*
+ * wrapper log(x)
+ */
+#ifndef _IEEE_LIBM
+double log(double x)
+{
+	double z = __ieee754_log(x);
+	if (_LIB_VERSION == _IEEE_ || isnan(x) || x > 0.0)
+		return z;
+	if (x == 0.0)
+		return __kernel_standard(x, x, 16); /* log(0) */
+	return __kernel_standard(x, x, 17); /* log(x<0) */
+}
+#else
+strong_alias(__ieee754_log, log)
+#endif
+libm_hidden_def(log)