Add an empty assembly statement to the memzero() weak symbol

2017-11-11 17:31:22 +01:00 · 2017-11-11 17:31:22 +01:00 · 27872ca13c
commit 27872ca13c
parent 40070b342a
1 changed files with 3 additions and 0 deletions
--- a/src/libsodium/sodium/utils.c
+++ b/src/libsodium/sodium/utils.c
@ -92,6 +92,9 @@ sodium_memzero(void *const pnt, const size_t len)
 #elif HAVE_WEAK_SYMBOLS
    memset(pnt, 0, len);
    _sodium_dummy_symbol_to_prevent_memzero_lto(pnt, len);
+# ifdef HAVE_AMD64_ASM
+    __asm__ __volatile__ ("" : : "p"(pnt));
+# endif
 #else
    volatile unsigned char *volatile pnt_ =
        (volatile unsigned char *volatile) pnt;