A few months back there was a big community fuss regarding direct-use

of the intel RDRAND instruction.  Consensus was RDRAND should probably
only be used as an additional source of entropy in a mixer.

Guess which library bends over backwards to provide easy access to
RDRAND?  Yep.  Guess which applications are using this support?  Not
even one... but still, this is being placed as a trap for someone.

Send this support straight to the abyss.
ok kettenis

1 files changed, 0 insertions, 12 deletions

diff --git a/src/lib/libcrypto/x86cpuid.pl b/src/lib/libcrypto/x86cpuid.pl
index 169036d53d..47df147a83 100644
--- a/src/lib/libcrypto/x86cpuid.pl
+++ b/src/lib/libcrypto/x86cpuid.pl
@@ -257,18 +257,6 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
         &ret    ();
 &function_end_B("OPENSSL_atomic_add");
 
-&function_begin_B("OPENSSL_ia32_rdrand");
-        &mov    ("ecx",8);
-&set_label("loop");
-        &rdrand ("eax");
-        &jc     (&label("break"));
-        &loop   (&label("loop"));
-&set_label("break");
-        &cmp    ("eax",0);
-        &cmove  ("eax","ecx");
-        &ret    ();
-&function_end_B("OPENSSL_ia32_rdrand");
-
 &initseg("OPENSSL_cpuid_setup");
 
 &asm_finish();