address several pr issues

arch.mk

@@ -1236,7 +1236,9 @@ ifeq ($(TARGET),lpc55s69)
       $(MCUXPRESSO_DRIVERS)/drivers/fsl_power.o \
       $(MCUXPRESSO)/drivers/common/fsl_common_arm.o \
       $(MCUXPRESSO)/drivers/iap1/fsl_iap.o \
-      $(MCUXPRESSO)/drivers/lpc_gpio/fsl_gpio.o
+      $(MCUXPRESSO)/drivers/lpc_gpio/fsl_gpio.o \
+      $(MCUXPRESSO)/drivers/rng_1/fsl_rng.o \
+      $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/rng_port.o
   ifeq ($(DEBUG_UART),1)
     OBJS+=\
       $(MCUXPRESSO_DRIVERS)/drivers/fsl_reset.o \
@@ -1248,10 +1250,8 @@ ifeq ($(TARGET),lpc55s69)
     OBJS+=\
         $(MCUXPRESSO)/drivers/casper/fsl_casper.o \
         $(MCUXPRESSO)/drivers/hashcrypt/fsl_hashcrypt.o \
-        $(MCUXPRESSO)/drivers/rng_1/fsl_rng.o \
         $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/casper_port.o \
-        $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/hashcrypt_port.o \
-        $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/rng_port.o
+        $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/hashcrypt_port.o
   else
     CFLAGS+=-DWOLFSSL_NXP_LPC55S69_NO_HWACCEL
   endif

config/examples/lpc55s69-tz.config

@@ -31,7 +31,7 @@ FLASH_MULTI_SECTOR_ERASE?=1
 WOLFCRYPT_TZ?=1
 WOLFCRYPT_TZ_PKCS11?=1
 
-# use 1024-byte sector to accomodate RSA4096 signature
+# use 1024-byte sector to accommodate RSA4096 signature
 # WOLFBOOT_SECTOR_SIZE?=0x400
 WOLFBOOT_SECTOR_SIZE?=0x200
 

config/examples/lpc55s69.config

@@ -29,7 +29,7 @@ DUALBANK_SWAP?=0
 PKA?=0
 FLASH_MULTI_SECTOR_ERASE?=1
 
-# use 1024-byte sector to accomodate RSA4096 signature
+# use 1024-byte sector to accommodate RSA4096 signature
 # WOLFBOOT_SECTOR_SIZE?=0x400
 WOLFBOOT_SECTOR_SIZE?=0x200
 

hal/lpc55s69.c

@@ -71,10 +71,8 @@ static void hal_sau_init(void)
 
 static void periph_unsecure(void)
 {
-#ifndef WOLFSSL_NXP_LPC55S69_NO_HWACCEL
     CLOCK_EnableClock(kCLOCK_Rng);
     RESET_PeripheralReset(kRNG_RST_SHIFT_RSTn);
-#endif
     CLOCK_EnableClock(kCLOCK_Iocon);
     CLOCK_EnableClock(kCLOCK_Gpio1);
 }
@@ -113,12 +111,9 @@ void hal_init(void)
     uart_write("lpc55s69 init\n", 14);
 # endif
 
-# ifndef WOLFSSL_NXP_LPC55S69_NO_HWACCEL
+# ifdef WOLFSSL_NXP_LPC55S69_WITH_HWACCEL
     CLOCK_EnableClock(kCLOCK_HashCrypt);
     wc_hashcrypt_init();
-# endif
-
-# ifndef WOLFSSL_NXP_LPC55S69_NO_HWACCEL
     CLOCK_EnableClock(kCLOCK_Casper);
     wc_casper_init();
 # endif
@@ -229,13 +224,11 @@ int RAMFUNCTION hal_flash_erase(uint32_t address, int len)
 #ifdef WOLFCRYPT_SECURE_MODE
 void hal_trng_init(void)
 {
-#ifndef WOLFSSL_NXP_LPC55S69_NO_HWACCEL
 # ifdef __WOLFBOOT
     CLOCK_EnableClock(kCLOCK_Rng);
     RESET_PeripheralReset(kRNG_RST_SHIFT_RSTn);
 # endif
     RNG_Init(RNG);
-#endif
 }
 
 void hal_trng_fini(void)
@@ -244,10 +237,8 @@ void hal_trng_fini(void)
 
 int hal_trng_get_entropy(unsigned char *out, unsigned int len)
 {
-#ifndef WOLFSSL_NXP_LPC55S69_NO_HWACCEL
     if (RNG_GetRandomData(RNG, out, len) == kStatus_Success)
         return 0;
-#endif
 
     return -1;
 }

include/user_settings.h

@@ -493,9 +493,15 @@ extern int tolower(int c);
     #define NO_AES_CBC
 #else
     #if defined(WOLFCRYPT_TEST) || defined(WOLFCRYPT_BENCHMARK)
-        #ifdef WOLFSSL_NXP_LPC55S69
+        #if defined(WOLFSSL_NXP_LPC55S69_WITH_HWACCEL) \
+            || defined(WOLFSSL_NXP_LPC55S69_NO_HWACCEL)
             /* use actual rng hardware for seed, HASHDRBG for generation */
             #define HAVE_HASHDRBG
+            #define HAVE_AES_ECB
+            #define WOLFSSL_AES_OFB
+            #define WOLFSSL_AES_CFB
+            #define WOLFSSL_AES_COUNTER
+            #define WOLFSSL_STATIC_MEMORY_TEST_SZ (30 * 1024)
         #else
             /* Use custom RNG for tests/benchmarks (saves ~7KB vs HASHDRBG).
             * WARNING: my_rng_seed_gen is NOT cryptographically secure.
@@ -508,14 +514,6 @@ extern int tolower(int c);
 
         #define HAVE_AESGCM
         #define GCM_TABLE
-
-        #if defined(WOLFSSL_NXP_LPC55S69) || defined(WOLFSSL_NXP_LPC55S69_NO_HWACCEL)
-            #define HAVE_AES_ECB
-            #define WOLFSSL_AES_OFB
-            #define WOLFSSL_AES_CFB
-            #define WOLFSSL_AES_COUNTER
-            #define WOLFSSL_STATIC_MEMORY_TEST_SZ (30 * 1024)
-        #endif
     #else
         #define HAVE_HASHDRBG
         #define WOLFSSL_AES_CFB
@@ -588,7 +586,7 @@ extern int tolower(int c);
 
 /* wolfCrypt Test/Benchmark Configuration */
 #ifdef WOLFCRYPT_TEST
-    #ifdef WOLFSSL_NXP_LPC55S69
+    #ifdef WOLFSSL_NXP_LPC55S69_WITH_HWACCEL
         /* lpc55s69 hashcrypt hw does not support interleaving */
         #define NO_WOLFSSL_SHA256_INTERLEAVE
     #endif

test-app/Makefile

@@ -182,7 +182,7 @@ ifeq ($(WOLFCRYPT_SUPPORT),1)
   # Add SP C math (all architectures)
   APP_OBJS+=$(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/sp_c32.o
 
-  # Add RSA support (needed by test suite)
+  # Add RSA support
   APP_OBJS+=$(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/rsa.o
 
   ifneq ($(NO_ASM),1)
@@ -728,16 +728,16 @@ ifeq ($(TARGET),lpc55s69)
       $(MCUXPRESSO)/drivers/flexcomm/fsl_flexcomm.o \
       $(MCUXPRESSO)/drivers/flexcomm/usart/fsl_usart.o \
       $(MCUXPRESSO)/drivers/iap1/fsl_iap.o \
-      $(MCUXPRESSO)/drivers/lpc_gpio/fsl_gpio.o
+      $(MCUXPRESSO)/drivers/lpc_gpio/fsl_gpio.o \
+      $(MCUXPRESSO)/drivers/rng_1/fsl_rng.o \
+      $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/rng_port.o
     ifeq ($(PKA),1)
-      CFLAGS+=-DWOLFSSL_NXP_LPC55S69
+      CFLAGS+=-DWOLFSSL_NXP_LPC55S69_WITH_HWACCEL
       APP_OBJS+=\
         $(MCUXPRESSO)/drivers/casper/fsl_casper.o \
         $(MCUXPRESSO)/drivers/hashcrypt/fsl_hashcrypt.o \
-        $(MCUXPRESSO)/drivers/rng_1/fsl_rng.o \
         $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/casper_port.o \
-        $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/hashcrypt_port.o \
-        $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/rng_port.o
+        $(WOLFBOOT_LIB_WOLFSSL)/wolfcrypt/src/port/nxp/hashcrypt_port.o
     else
       CFLAGS+=-DWOLFSSL_NXP_LPC55S69_NO_HWACCEL
     endif

test-app/app_lpc55s69.c

@@ -55,11 +55,12 @@ void SysTick_Handler(void)
     SysTick_time_ms++;
 }
 
+#ifdef WOLFCRYPT_BENCHMARK
 static void systick_init(void)
 {
     SysTick_Config(CLOCK_GetCoreSysClkFreq() / 1000U); /* 1 ms period */
 }
-
+#endif
 
 #define IOCON_PIO_FUNC0 0x00u         /*!<@brief Selects pin function 0 */
 #define IOCON_PIO_MODE_PULLUP 0x20u   /*!<@brief Selects pull-up function */
@@ -134,7 +135,7 @@ void main(void)
 
     hal_init();
     leds_init();
-#ifndef TZEN
+#ifdef WOLFCRYPT_BENCHMARK
     systick_init();
     __enable_irq();
 #endif
@@ -206,6 +207,16 @@ void main(void)
     }
 }
 
+#ifndef ENOMEM
+#define ENOMEM 12
+#endif
+#ifndef EBADF
+#define EBADF  9
+#endif
+#ifndef EINVAL
+#define EINVAL 22
+#endif
+int errno;
 
 #include "sys/stat.h"
 int WEAKFUNCTION _getpid(void)
@@ -268,8 +279,28 @@ int WEAKFUNCTION _fstat(int file, struct stat *st)
     return 0;
 }
 
+/* Heap management */
+extern char _end; /* Defined by linker */
+extern char _Min_Heap_Size; /* Linker symbol: address is the value */
+
 void WEAKFUNCTION *_sbrk(int incr)
 {
-    (void)incr;
-    return 0;
+    static char *heap_end = 0;
+    char *prev_heap_end;
+    char *heap_limit;
+
+    if (heap_end == 0) {
+        heap_end = &_end;
+    }
+    prev_heap_end = heap_end;
+
+    heap_limit = &_end + (uintptr_t)&_Min_Heap_Size;
+
+    if (heap_end + incr > heap_limit) {
+        errno = ENOMEM;
+        return (void *)-1;
+    }
+
+    heap_end += incr;
+    return prev_heap_end;
 }