dynlink.c: use a faster expression in gnu_hash

With -Os, GCC uses a multiply rather than a shift and addition for 'h*33'.
Use a more efficient expression explicitely.

diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c
index d2a72492e7212b45b4f3090c40f55a52728c780a..ec96be16dde2a5c69599012ec4ed140f2a8a9ed4 100644 (file)
--- a/src/ldso/dynlink.c
+++ b/src/ldso/dynlink.c
@@ -156,7 +156,7 @@ static uint32_t gnu_hash(const char *s0)
        const unsigned char *s = (void *)s0;
        uint_fast32_t h = 5381;
        for (; *s; s++)
-               h = h*33 + *s;
+               h += h*32 + *s;
        return h;
 }