Move algorithm specific ppccap code from crypto/ppccap.c

Having that code in one central object file turned out to cause
trouble when building test/modes_internal_test.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1883)

1 files changed, 31 insertions, 0 deletions

diff --git a/crypto/chacha/chacha_ppccap.c b/crypto/chacha/chacha_ppccap.c
new file mode 100644
index 0000000..10dd06e
--- /dev/null
+++ b/crypto/chacha/chacha_ppccap.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/opensslconf.h>
+#include <openssl/crypto.h>
+#include "../ppc_arch.h"
+
+#ifdef OPENSSL_NO_CHACHA
+NON_EMPTY_TRANSLATION_UNIT
+#else
+void ChaCha20_ctr32_int(unsigned char *out, const unsigned char *inp,
+                        size_t len, const unsigned int key[8],
+                        const unsigned int counter[4]);
+void ChaCha20_ctr32_vmx(unsigned char *out, const unsigned char *inp,
+                        size_t len, const unsigned int key[8],
+                        const unsigned int counter[4]);
+void ChaCha20_ctr32(unsigned char *out, const unsigned char *inp,
+                    size_t len, const unsigned int key[8],
+                    const unsigned int counter[4])
+{
+    OPENSSL_ppccap_P & PPC_ALTIVEC
+        ? ChaCha20_ctr32_vmx(out, inp, len, key, counter)
+        : ChaCha20_ctr32_int(out, inp, len, key, counter);
+}
+#endif