precalculate gnu hash rather than doing it lazily in find_sym inner loop

[musl] / ldso / dynlink.c

diff --git a/ldso/dynlink.c b/ldso/dynlink.c
index 178fe27..5361b84 100644 (file)
--- a/ldso/dynlink.c
+++ b/ldso/dynlink.c
@@ -258,18 +258,12 @@ static Sym *gnu_lookup_filtered(uint32_t h1, uint32_t *hashtab, struct dso *dso,
 
 static struct symdef find_sym(struct dso *dso, const char *s, int need_def)
 {
-       uint32_t h = 0, gh, gho, *ght;
-       size_t ghm = 0;
+       uint32_t h = 0, gh = gnu_hash(s), gho = gh / (8*sizeof(size_t)), *ght;
+       size_t ghm = 1ul << gh % (8*sizeof(size_t));
        struct symdef def = {0};
        for (; dso; dso=dso->syms_next) {
                Sym *sym;
                if ((ght = dso->ghashtab)) {
-                       if (!ghm) {
-                               gh = gnu_hash(s);
-                               int maskbits = 8 * sizeof ghm;
-                               gho = gh / maskbits;
-                               ghm = 1ul << gh % maskbits;
-                       }
                        sym = gnu_lookup_filtered(gh, ght, dso, s, gho, ghm);
                } else {
                        if (!h) h = sysv_hash(s);