fix double-processing of DT_RELR relocations in ldso relocating itself

[musl] / src / math / exp10l.c

diff --git a/src/math/exp10l.c b/src/math/exp10l.c
index 4f9469a..f3da1a0 100644 (file)
--- a/src/math/exp10l.c
+++ b/src/math/exp10l.c
@@ -1,14 +1,14 @@
 #define _GNU_SOURCE
 #include <float.h>
 #include <math.h>
-#include "libc.h"
+#include "libm.h"
 
 #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
 long double exp10l(long double x)
 {
        return exp10(x);
 }
-#else
+#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
 long double exp10l(long double x)
 {
        static const long double p10[] = {
@@ -18,7 +18,9 @@ long double exp10l(long double x)
                1e10, 1e11, 1e12, 1e13, 1e14, 1e15
        };
        long double n, y = modfl(x, &n);
-       if (fabsl(n) < 16) {
+       union ldshape u = {n};
+       /* fabsl(n) < 16 without raising invalid on nan */
+       if ((u.i.se & 0x7fff) < 0x3fff+4) {
                if (!y) return p10[(int)n+15];
                y = exp2l(3.32192809488736234787031942948939L * y);
                return y * p10[(int)n+15];