crypto/mem.c: drop reference to cleanse_ctr and fix no-asm builds.

crypto/mem_clr.c was harmonized with master branch and doesn't use
cleanse_ctr kludge anymore.

RT#4563

Reviewed-by: Rich Salz <rsalz@openssl.org>

diff --git a/crypto/mem.c b/crypto/mem.c
index fdad49b76ec00a9cdf33234b2127e52cbf6c96e5..1e873e3428b15bd4149cd5e8d8f88ce0514357a9 100644 (file)
--- a/crypto/mem.c
+++ b/crypto/mem.c
@@ -298,18 +298,6 @@ void *CRYPTO_malloc_locked(int num, const char *file, int line)
     if (malloc_debug_func != NULL)
         malloc_debug_func(ret, num, file, line, 1);
 
-#ifndef OPENSSL_CPUID_OBJ
-    /*
-     * Create a dependency on the value of 'cleanse_ctr' so our memory
-     * sanitisation function can't be optimised out. NB: We only do this for
-     * >2Kb so the overhead doesn't bother us.
-     */
-    if (ret && (num > 2048)) {
-        extern unsigned char cleanse_ctr;
-        ((unsigned char *)ret)[0] = cleanse_ctr;
-    }
-#endif
-
     return ret;
 }
 
@@ -346,18 +334,6 @@ void *CRYPTO_malloc(int num, const char *file, int line)
     if (malloc_debug_func != NULL)
         malloc_debug_func(ret, num, file, line, 1);
 
-#ifndef OPENSSL_CPUID_OBJ
-    /*
-     * Create a dependency on the value of 'cleanse_ctr' so our memory
-     * sanitisation function can't be optimised out. NB: We only do this for
-     * >2Kb so the overhead doesn't bother us.
-     */
-    if (ret && (num > 2048)) {
-        extern unsigned char cleanse_ctr;
-        ((unsigned char *)ret)[0] = cleanse_ctr;
-    }
-#endif
-
     return ret;
 }