File 0002-crypto-Fix-aead_test-build-on-aarch64.patch of Package boringssl

From d16b362b228ebee5c16ae6c214a50348e9e963b9 Mon Sep 17 00:00:00 2001
From: Michal Rostecki <mrostecki@opensuse.org>
Date: Thu, 25 Apr 2019 16:11:28 +0200
Subject: [PATCH] crypto: Fix aead_test build on aarch64

aarch64 does not allow allignments larger than 16 bytes.

Before this change, `aead_test.cc` build on aarch64 was failing with the
following errors:

aead_test.cc:543:54: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t key[EVP_AEAD_MAX_KEY_LENGTH + 1];
aead_test.cc:544:58: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t nonce[EVP_AEAD_MAX_NONCE_LENGTH + 1];
aead_test.cc:545:39: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t plaintext[32 + 1];
aead_test.cc:546:32: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t ad[32 + 1];
aead_test.cc:564:75: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t ciphertext[sizeof(plaintext) + EVP_AEAD_MAX_OVERHEAD];
aead_test.cc:572:45: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t out[sizeof(ciphertext)];
aead_test.cc:586:50: error: requested alignment 64 is larger than 16 [-Werror=attributes]
   alignas(64) uint8_t key[EVP_AEAD_MAX_KEY_LENGTH];
                                                  ^

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
Change-Id: Iac2c6810fa260ad214abde8db733793ac914acda
---
 crypto/cipher_extra/aead_test.cc | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

Index: boringssl-20190523/crypto/cipher_extra/aead_test.cc
===================================================================
--- boringssl-20190523.orig/crypto/cipher_extra/aead_test.cc
+++ boringssl-20190523/crypto/cipher_extra/aead_test.cc
@@ -29,6 +29,12 @@
 #include "../test/test_util.h"
 #include "../test/wycheproof_util.h"
 
+#if defined(OPENSSL_AARCH64)
+#define ALIGN_BYTES 16
+#else
+#define ALIGN_BYTES 64
+#endif
+
 
 struct KnownAEAD {
   const char name[40];
@@ -540,10 +546,10 @@ TEST_P(PerAEADTest, AliasedBuffers) {
 }
 
 TEST_P(PerAEADTest, UnalignedInput) {
-  alignas(64) uint8_t key[EVP_AEAD_MAX_KEY_LENGTH + 1];
-  alignas(64) uint8_t nonce[EVP_AEAD_MAX_NONCE_LENGTH + 1];
-  alignas(64) uint8_t plaintext[32 + 1];
-  alignas(64) uint8_t ad[32 + 1];
+  alignas(ALIGN_BYTES) uint8_t key[EVP_AEAD_MAX_KEY_LENGTH + 1];
+  alignas(ALIGN_BYTES) uint8_t nonce[EVP_AEAD_MAX_NONCE_LENGTH + 1];
+  alignas(ALIGN_BYTES) uint8_t plaintext[32 + 1];
+  alignas(ALIGN_BYTES) uint8_t ad[32 + 1];
   OPENSSL_memset(key, 'K', sizeof(key));
   OPENSSL_memset(nonce, 'N', sizeof(nonce));
   OPENSSL_memset(plaintext, 'P', sizeof(plaintext));
@@ -561,7 +567,7 @@ TEST_P(PerAEADTest, UnalignedInput) {
   ASSERT_TRUE(EVP_AEAD_CTX_init_with_direction(
       ctx.get(), aead(), key + 1, key_len, EVP_AEAD_DEFAULT_TAG_LENGTH,
       evp_aead_seal));
-  alignas(64) uint8_t ciphertext[sizeof(plaintext) + EVP_AEAD_MAX_OVERHEAD];
+  alignas(ALIGN_BYTES) uint8_t ciphertext[sizeof(plaintext) + EVP_AEAD_MAX_OVERHEAD];
   size_t ciphertext_len;
   ASSERT_TRUE(EVP_AEAD_CTX_seal(ctx.get(), ciphertext + 1, &ciphertext_len,
                                 sizeof(ciphertext) - 1, nonce + 1, nonce_len,
@@ -569,7 +575,7 @@ TEST_P(PerAEADTest, UnalignedInput) {
                                 ad_len));
 
   // It must successfully decrypt.
-  alignas(64) uint8_t out[sizeof(ciphertext)];
+  alignas(ALIGN_BYTES) uint8_t out[sizeof(ciphertext)];
   ctx.Reset();
   ASSERT_TRUE(EVP_AEAD_CTX_init_with_direction(
       ctx.get(), aead(), key + 1, key_len, EVP_AEAD_DEFAULT_TAG_LENGTH,
@@ -583,7 +589,7 @@ TEST_P(PerAEADTest, UnalignedInput) {
 }
 
 TEST_P(PerAEADTest, Overflow) {
-  alignas(64) uint8_t key[EVP_AEAD_MAX_KEY_LENGTH];
+  alignas(ALIGN_BYTES) uint8_t key[EVP_AEAD_MAX_KEY_LENGTH];
   OPENSSL_memset(key, 'K', sizeof(key));
 
   bssl::ScopedEVP_AEAD_CTX ctx;