Green Hills compiler fixes

internal.c: Move non-enumeration value out of switch.
ssl.c: Only declare globalRNGMutex when required.
x509.c: initialize ret

armv8-aes.c, armv8-chacha.c: fix branch instructions
armv8-mlkem*: ensure only required constants are input operands and move
constants closer to first use.
armv8-poly1305.c: remove POLY1305_BLOCK_SIZE from input operands.
armv8-sha3-asm_c.c, armv8-sha512-asm_c.c: use constraint ':' instead of
'S'.
armv8-sha512.c: initialize initfp. Is always used.

Author: SparkiDev

src/internal.c

@@ -26488,7 +26488,7 @@ const char* wolfSSL_ERR_reason_error_string(unsigned long e)
         return "peer ip address mismatch";
 
     case WANT_READ :
-    case -WOLFSSL_ERROR_WANT_READ :
+    case WOLFSSL_ERROR_WANT_READ_E :
         return "non-blocking socket wants data to be read";
 
     case NOT_READY_ERROR :
@@ -26498,17 +26498,17 @@ const char* wolfSSL_ERR_reason_error_string(unsigned long e)
         return "record layer version error";
 
     case WANT_WRITE :
-    case -WOLFSSL_ERROR_WANT_WRITE :
+    case WOLFSSL_ERROR_WANT_WRITE_E :
         return "non-blocking socket write buffer full";
 
-    case -WOLFSSL_ERROR_WANT_CONNECT:
-    case -WOLFSSL_ERROR_WANT_ACCEPT:
+    case WOLFSSL_ERROR_WANT_CONNECT_E :
+    case WOLFSSL_ERROR_WANT_ACCEPT_E :
         return "The underlying BIO was not yet connected";
 
-    case -WOLFSSL_ERROR_SYSCALL:
+    case WOLFSSL_ERROR_SYSCALL_E :
         return "fatal I/O error in TLS layer";
 
-    case -WOLFSSL_ERROR_WANT_X509_LOOKUP:
+    case WOLFSSL_ERROR_WANT_X509_LOOKUP_E :
         return "application client cert callback asked to be called again";
 
     case BUFFER_ERROR :
@@ -26548,7 +26548,7 @@ const char* wolfSSL_ERR_reason_error_string(unsigned long e)
         return "can't decode peer key";
 
     case ZERO_RETURN:
-    case -WOLFSSL_ERROR_ZERO_RETURN:
+    case WOLFSSL_ERROR_ZERO_RETURN_E :
         return "peer sent close notify alert";
 
     case ECC_CURVETYPE_ERROR:

src/ssl.c

@@ -234,8 +234,10 @@ static struct SystemCryptoPolicy crypto_policy;
 static WC_RNG globalRNG;
 static volatile int initGlobalRNG = 0;
 
+#if defined(OPENSSL_EXTRA) || !defined(WOLFSSL_MUTEX_INITIALIZER)
 static WC_MAYBE_UNUSED wolfSSL_Mutex globalRNGMutex
     WOLFSSL_MUTEX_INITIALIZER_CLAUSE(globalRNGMutex);
+#endif
 #ifndef WOLFSSL_MUTEX_INITIALIZER
 static int globalRNGMutex_valid = 0;
 #endif

src/x509.c

@@ -5507,7 +5507,7 @@ int wolfSSL_X509_NAME_get_text_by_NID(WOLFSSL_X509_NAME* name,
 WOLFSSL_EVP_PKEY* wolfSSL_X509_get_pubkey(WOLFSSL_X509* x509)
 {
     WOLFSSL_EVP_PKEY* key = NULL;
-    int ret;
+    int ret = 0;
 
     (void)ret;