[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/ThirdParty/wolfSSL/IDE/GCC-ARM/Source/armtarget.c

@@ -0,0 +1,210 @@
+/* armtarget.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#include <wolfssl/wolfcrypt/settings.h>
+#include <wolfssl/ssl.h>
+#include <wolfssl/wolfcrypt/random.h> /* for CUSTOM_RAND_TYPE */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+
+#ifdef USE_WOLF_ARM_STARTUP
+
+/* Memory initialization */
+extern uint32_t __data_load_start__[];
+extern uint32_t __data_start__[];
+extern uint32_t __data_end__[];
+
+extern uint32_t __bss_start__[];
+extern uint32_t __bss_end__[];
+
+extern uint32_t __stack_process_end__[];
+
+extern uint32_t __heap_start__[];
+extern uint32_t __heap_end__[];
+
+/* Copy memory: src=Source, dst_beg=Destination Begin, dst_end=Destination End */
+void memcpy32(uint32_t* src, uint32_t* dst_beg, uint32_t* dst_end)
+{
+    while (dst_beg < dst_end) {
+        *dst_beg++ = *src++;
+    }
+}
+/* Zero address in range */
+void meminit32(uint32_t* start, uint32_t* end)
+{
+    while (start < end) {
+        *start++ = 0;
+    }
+}
+#endif /* USE_WOLF_ARM_STARTUP */
+
+/* Entry Point */
+void reset_handler(void)
+{
+#ifdef USE_WOLF_ARM_STARTUP
+    /* Init sections */
+    memcpy32(__data_load_start__, __data_start__, __data_end__);
+    meminit32(__bss_start__, __bss_end__);
+
+    /* Init heap */
+    __heap_start__[0] = 0;
+    __heap_start__[1] = ((uint32_t)__heap_end__ - (uint32_t)__heap_start__);
+#endif /* USE_WOLF_ARM_STARTUP */
+
+    /* Start main */
+    extern int main(void);
+    main();
+
+    /* Application has ended, so busy wait */
+    while(1);
+}
+
+#ifdef USE_WOLF_ARM_STARTUP
+// Vector Exception/Interrupt Handlers
+static void Default_Handler(void)
+{
+    /* If we get here then need to implement real IRQ handler */
+    while(1);
+}
+
+__attribute__((section(".sys"))) __attribute__ ((used))
+void HardFault_HandlerC( uint32_t *hardfault_args )
+{
+    /* These are volatile to try and prevent the compiler/linker optimizing them
+    away as the variables never actually get used.  If the debugger won't show the
+    values of the variables, make them global my moving their declaration outside
+    of this function. */
+    volatile uint32_t stacked_r0;
+    volatile uint32_t stacked_r1;
+    volatile uint32_t stacked_r2;
+    volatile uint32_t stacked_r3;
+    volatile uint32_t stacked_r12;
+    volatile uint32_t stacked_lr;
+    volatile uint32_t stacked_pc;
+    volatile uint32_t stacked_psr;
+    volatile uint32_t _CFSR;
+    volatile uint32_t _HFSR;
+    volatile uint32_t _DFSR;
+    volatile uint32_t _AFSR;
+    volatile uint32_t _BFAR;
+    volatile uint32_t _MMAR;
+
+    stacked_r0 = ((uint32_t)hardfault_args[0]);
+    stacked_r1 = ((uint32_t)hardfault_args[1]);
+    stacked_r2 = ((uint32_t)hardfault_args[2]);
+    stacked_r3 = ((uint32_t)hardfault_args[3]);
+    stacked_r12 = ((uint32_t)hardfault_args[4]);
+    stacked_lr = ((uint32_t)hardfault_args[5]);
+    stacked_pc = ((uint32_t)hardfault_args[6]);
+    stacked_psr = ((uint32_t)hardfault_args[7]);
+
+    // Configurable Fault Status Register
+    // Consists of MMSR, BFSR and UFSR
+    _CFSR = (*((volatile uint32_t *)(0xE000ED28)));
+
+    // Hard Fault Status Register
+    _HFSR = (*((volatile uint32_t *)(0xE000ED2C)));
+
+    // Debug Fault Status Register
+    _DFSR = (*((volatile uint32_t *)(0xE000ED30)));
+
+    // Auxiliary Fault Status Register
+    _AFSR = (*((volatile uint32_t *)(0xE000ED3C)));
+
+    // Read the Fault Address Registers. These may not contain valid values.
+    // Check BFARVALID/MMARVALID to see if they are valid values
+    // MemManage Fault Address Register
+    _MMAR = (*((volatile uint32_t *)(0xE000ED34)));
+    // Bus Fault Address Register
+    _BFAR = (*((volatile uint32_t *)(0xE000ED38)));
+
+    printf ("\n\nHard fault handler (all numbers in hex):\n");
+    printf ("R0 = %ux\n", stacked_r0);
+    printf ("R1 = %ux\n", stacked_r1);
+    printf ("R2 = %ux\n", stacked_r2);
+    printf ("R3 = %ux\n", stacked_r3);
+    printf ("R12 = %ux\n", stacked_r12);
+    printf ("LR [R14] = %ux  subroutine call return address\n", stacked_lr);
+    printf ("PC [R15] = %ux  program counter\n", stacked_pc);
+    printf ("PSR = %ux\n", stacked_psr);
+    printf ("CFSR = %ux\n", _CFSR);
+    printf ("HFSR = %ux\n", _HFSR);
+    printf ("DFSR = %ux\n", _DFSR);
+    printf ("AFSR = %ux\n", _AFSR);
+    printf ("MMAR = %ux\n", _MMAR);
+    printf ("BFAR = %ux\n", _BFAR);
+
+    // Break into the debugger
+    __asm("BKPT #0\n");
+}
+
+__attribute__((section(".sys")))  __attribute__( ( naked ) )
+void HardFault_Handler(void)
+{
+    __asm volatile
+    (
+        " movs r0,#4      \n"  /* load bit mask into R0 */
+        " mov  r1, lr     \n"  /* load link register into R1 */
+        " tst r0, r1      \n"  /* compare with bitmask */
+        " beq _MSP        \n"  /* if bitmask is set: stack pointer is in PSP. Otherwise in MSP */
+        " mrs r0, psp     \n"  /* otherwise: stack pointer is in PSP */
+        " b _GetPC        \n"  /* go to part which loads the PC */
+        "_MSP:            \n"  /* stack pointer is in MSP register */
+        " mrs r0, msp     \n"  /* load stack pointer into R0 */
+        "_GetPC:          \n"  /* find out where the hard fault happened */
+        " ldr r1,[r0,#20] \n"  /* load program counter into R1. R1 contains address of the next instruction where the hard fault happened */
+        " ldr r2, =HardFault_HandlerC \n"
+        " bx r2           \n"
+        " bx lr           \n"  /* decode more information. R0 contains pointer to stack frame */
+    );
+}
+
+/* Vectors Table */
+typedef void (*vector_entry)(void);
+const vector_entry vectors[] __attribute__ ((section(".vectors"),used)) =
+{
+    /* Interrupt Vector Table Function Pointers */
+                        // Address     Vector IRQ   Source module    Source description
+    (vector_entry)__stack_process_end__, //         ARM core         Initial Supervisor SP
+    reset_handler,      // 0x0000_0004 1 -          ARM core         Initial Program Counter
+    Default_Handler,    // 0x0000_0008 2 -          ARM core         Non-maskable Interrupt (NMI)
+    HardFault_Handler,  // 0x0000_000C 3 -          ARM core         Hard Fault
+    Default_Handler,    // 0x0000_0010 4 -
+    HardFault_Handler,  // 0x0000_0014 5 -          ARM core         Bus Fault
+    HardFault_Handler,  // 0x0000_0018 6 -          ARM core         Usage Fault
+    Default_Handler,    // 0x0000_001C 7 -
+    Default_Handler,    // 0x0000_0020 8 -
+    Default_Handler,    // 0x0000_0024 9 -
+    Default_Handler,    // 0x0000_0028 10 -
+    Default_Handler,    // 0x0000_002C 11 -         ARM core         Supervisor call (SVCall)
+    Default_Handler,    // 0x0000_0030 12 -         ARM core         Debug Monitor
+    Default_Handler,    // 0x0000_0034 13 -
+    Default_Handler,    // 0x0000_0038 14 -         ARM core         Pendable request for system service (PendableSrvReq)
+    Default_Handler,    // 0x0000_003C 15 -         ARM core         System tick timer (SysTick)
+
+    /* remainder go below */
+};
+#endif /* USE_WOLF_ARM_STARTUP */

kernel/FreeRTOS-Plus/ThirdParty/wolfSSL/IDE/GCC-ARM/Source/benchmark_main.c

@@ -0,0 +1,54 @@
+/* benchmark_main.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+#include <wolfssl/wolfcrypt/settings.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+#include <wolfssl/wolfcrypt/logging.h>
+#include <wolfcrypt/benchmark/benchmark.h>
+#include <stdio.h>
+
+#ifndef NO_CRYPT_BENCHMARK
+typedef struct func_args {
+    int    argc;
+    char** argv;
+    int    return_code;
+} func_args;
+
+static func_args args = { 0 } ;
+#endif
+
+int main(void)
+{
+    int ret;
+#ifndef NO_CRYPT_BENCHMARK
+	wolfCrypt_Init();
+
+	printf("\nBenchmark Test\n");
+	benchmark_test(&args);
+    ret = args.return_code;
+	printf("Benchmark Test: Return code %d\n", ret);
+
+	wolfCrypt_Cleanup();
+#else
+    ret = NOT_COMPILED_IN;
+#endif
+	return ret;
+}

kernel/FreeRTOS-Plus/ThirdParty/wolfSSL/IDE/GCC-ARM/Source/test_main.c

@@ -0,0 +1,55 @@
+/* test_main.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#include <wolfssl/wolfcrypt/settings.h>
+#include <wolfssl/wolfcrypt/logging.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+#include <wolfcrypt/test/test.h>
+#include <stdio.h>
+
+#ifndef NO_CRYPT_TEST
+typedef struct func_args {
+    int    argc;
+    char** argv;
+    int    return_code;
+} func_args;
+
+static func_args args = { 0 } ;
+#endif
+
+int main(void)
+{
+    int ret;
+#ifndef NO_CRYPT_TEST
+	wolfCrypt_Init();
+
+	printf("\nCrypt Test\n");
+	wolfcrypt_test(&args);
+    ret = args.return_code;
+	printf("Crypt Test: Return code %d\n", ret);
+
+	wolfCrypt_Cleanup();
+#else
+    ret = NOT_COMPILED_IN;
+#endif
+	return ret;
+}

kernel/FreeRTOS-Plus/ThirdParty/wolfSSL/IDE/GCC-ARM/Source/tls_client.c

@@ -0,0 +1,207 @@
+/* tls_client.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#include <wolfssl/wolfcrypt/settings.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+
+#ifndef WOLFCRYPT_ONLY
+
+#include <wolfssl/ssl.h>
+#include <wolfssl/wolfcrypt/logging.h>
+#include <stdio.h>
+
+#define MAXSZ              1024
+
+/*------------------------------------------------------------------------*/
+/* TLS CLIENT */
+/*------------------------------------------------------------------------*/
+static int CbIORecv(WOLFSSL *ssl, char *buf, int sz, void *ctx)
+{
+    int ret = WOLFSSL_CBIO_ERR_GENERAL;
+
+    (void)ssl;
+    (void)ctx;
+
+    /* TODO: Exchange data over your own transport */
+    #warning TODO: Implement your own recv data transport
+#if 0
+    ret = usart_read_buffer_wait(&cdc_uart_module, buf, sz);
+    if (ret == STATUS_ERR_TIMEOUT)
+        return WOLFSSL_CBIO_ERR_WANT_READ;
+
+    return (ret == STATUS_OK) ? sz : WOLFSSL_CBIO_ERR_GENERAL;
+#else
+    return ret;
+#endif
+}
+
+static int CbIOSend(WOLFSSL *ssl, char *buf, int sz, void *ctx)
+{
+    int ret = WOLFSSL_CBIO_ERR_GENERAL;
+
+    (void)ssl;
+    (void)ctx;
+
+    /* TODO: Exchange data over your own transport */
+    #warning TODO: Implement your own send data transport
+#if 0
+    ret = usart_write_buffer_wait(&cdc_uart_module, buf, sz);
+    if (ret == STATUS_ERR_TIMEOUT)
+        return WOLFSSL_CBIO_ERR_WANT_WRITE;
+
+    return (ret == STATUS_OK) ? sz : WOLFSSL_CBIO_ERR_GENERAL;
+#else
+    return ret;
+#endif
+}
+
+static int tls_client(void)
+{
+    char msg[] = "Hello WolfSSL!\r\n";
+    char reply[MAXSZ];
+    int ret, msgSz, error;
+    WOLFSSL* ssl = NULL;
+    WOLFSSL_CTX* ctx = NULL;
+
+    if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method())) == NULL) {
+        printf("CTXnew failed.\n");
+        goto fail;
+    }
+
+    /*------------------------------------------------------------------------*/
+    /* ECDHE-ECDSA */
+    /*------------------------------------------------------------------------*/
+    /*--------------------*/
+    /* for peer auth use: */
+    /*--------------------*/
+    //    wolfSSL_CTX_load_verify_buffer(ctx, rsa_key_der_1024,
+    //                                    sizeof_rsa_key_der_1024, SSL_FILETYPE_ASN1);
+    //    wolfSSL_CTX_load_verify_buffer(ctx, server_cert_der_1024,
+    //                                    sizeof_server_cert_der_1024, SSL_FILETYPE_ASN1);
+    /*---------------------*/
+    /* for no peer auth:   */
+    /*---------------------*/
+    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
+    /*---------------------*/
+    /* end peer auth option*/
+    /*---------------------*/
+    if ((ret = wolfSSL_CTX_set_cipher_list(ctx, "ECDHE-ECDSA-AES128-SHA256")) != SSL_SUCCESS) {
+        wolfSSL_CTX_free(ctx);
+        printf("CTXset_cipher_list failed, error: %d\n", ret);
+        goto fail;
+    }
+    /*------------------------------------------------------------------------*/
+    /* END CIPHER SUITE OPTIONS */
+    /*------------------------------------------------------------------------*/
+    wolfSSL_CTX_SetIORecv(ctx, CbIORecv);
+    wolfSSL_CTX_SetIOSend(ctx, CbIOSend);
+
+    if ((ssl = wolfSSL_new(ctx)) == NULL) {
+        error = wolfSSL_get_error(ssl, 0);
+        printf("wolfSSL_new failed %d\n", error);
+        wolfSSL_CTX_free(ctx);
+        return -1;
+    }
+
+    /* non blocking accept and connect */
+    ret = SSL_FAILURE;
+
+    while (ret != SSL_SUCCESS) {
+        /* client connect */
+        ret = wolfSSL_connect(ssl);
+        error = wolfSSL_get_error(ssl, 0);
+        if (ret != SSL_SUCCESS) {
+            if (error != SSL_ERROR_WANT_READ && error != SSL_ERROR_WANT_WRITE) {
+                /* Fail */
+                printf("wolfSSL connect failed with return code %d\n", error);
+                goto fail;
+            }
+        }
+        /* Success */
+    }
+
+    /* read and write */
+    while (1) {
+        /* client send/read */
+        msgSz = sizeof(msg);
+        ret   = wolfSSL_write(ssl, msg, msgSz);
+        error = wolfSSL_get_error(ssl, 0);
+        if (ret != msgSz) {
+            if (error != SSL_ERROR_WANT_READ && error != SSL_ERROR_WANT_WRITE) {
+                /* Write failed */
+                goto fail;
+            }
+        }
+        /* Write succeeded */
+        break;
+    }
+
+    while (1) {
+        ret = wolfSSL_read(ssl, reply, sizeof(reply) - 1);
+        error = wolfSSL_get_error(ssl, 0);
+        if (ret < 0) {
+            if (error != SSL_ERROR_WANT_READ && error != SSL_ERROR_WANT_WRITE) {
+                /* Can put print here, the server enters a loop waiting to read
+                 * a confirmation message at this point */
+                // printf("client read failed\n");
+                goto fail;
+            }
+            continue;
+        }
+        else {
+            /* Can put print here, the server enters a loop waiting to read
+             * a confirmation message at this point */
+            reply[ret] = '\0';
+            // printf("Client Received Reply: %s\n", reply);
+            break;
+        }
+
+    }
+
+    return 0;
+
+fail:
+    wolfSSL_shutdown(ssl);
+    wolfSSL_free(ssl);
+    wolfSSL_CTX_free(ctx);
+
+    return -1;
+}
+#endif
+
+
+int main(void)
+{
+    int ret;
+
+#ifndef WOLFCRYPT_ONLY
+    wolfSSL_Init();
+
+    ret = tls_client();
+
+    wolfSSL_Cleanup();
+#else
+    ret = NOT_COMPILED_IN;
+#endif
+
+	return ret;
+}

kernel/FreeRTOS-Plus/ThirdParty/wolfSSL/IDE/GCC-ARM/Source/wolf_main.c

@@ -0,0 +1,142 @@
+/* wolf_main.c
+ *
+ * Copyright (C) 2006-2020 wolfSSL Inc.
+ *
+ * This file is part of wolfSSL.
+ *
+ * wolfSSL is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * wolfSSL is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
+ */
+
+
+#include <wolfssl/wolfcrypt/settings.h>
+#include <wolfssl/wolfcrypt/random.h> /* for CUSTOM_RAND_TYPE */
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+
+/* TIME CODE */
+/* TODO: Implement real RTC */
+/* Optionally you can define NO_ASN_TIME to disable all cert time checks */
+static int gTimeMs;
+static int hw_get_time_sec(void)
+{
+    #warning Must implement your own time source if validating certificates
+
+	return ++gTimeMs;
+}
+
+/* This is used by wolfCrypt asn.c for cert time checking */
+unsigned long my_time(unsigned long* timer)
+{
+    (void)timer;
+    return hw_get_time_sec();
+}
+
+#ifndef WOLFCRYPT_ONLY
+/* This is used by TLS only */
+unsigned int LowResTimer(void)
+{
+    return hw_get_time_sec();
+}
+#endif
+
+#ifndef NO_CRYPT_BENCHMARK
+/* This is used by wolfCrypt benchmark tool only */
+double current_time(int reset)
+{
+    double time;
+	int timeMs = gTimeMs;
+    (void)reset;
+    time = (timeMs / 1000); // sec
+    time += (double)(timeMs % 1000) / 1000; // ms
+    return time;
+}
+#endif
+
+/* RNG CODE */
+/* TODO: Implement real RNG */
+static unsigned int gCounter;
+unsigned int hw_rand(void)
+{
+    #warning Must implement your own random source
+
+    return ++gCounter;
+}
+
+unsigned int my_rng_seed_gen(void)
+{
+    return hw_rand();
+}
+
+int my_rng_gen_block(unsigned char* output, unsigned int sz)
+{
+    uint32_t i = 0;
+
+    while (i < sz)
+    {
+        /* If not aligned or there is odd/remainder */
+        if( (i + sizeof(CUSTOM_RAND_TYPE)) > sz ||
+            ((uint32_t)&output[i] % sizeof(CUSTOM_RAND_TYPE)) != 0
+        ) {
+            /* Single byte at a time */
+            output[i++] = (unsigned char)my_rng_seed_gen();
+        }
+        else {
+            /* Use native 8, 16, 32 or 64 copy instruction */
+            *((CUSTOM_RAND_TYPE*)&output[i]) = my_rng_seed_gen();
+            i += sizeof(CUSTOM_RAND_TYPE);
+        }
+    }
+
+    return 0;
+}
+
+
+#ifdef XMALLOC_OVERRIDE
+void *myMalloc(size_t n, void* heap, int type)
+{
+    (void)n;
+    (void)heap;
+    (void)type;
+
+    #warning Must implement your own malloc
+
+    return NULL;
+}
+void myFree(void *p, void* heap, int type)
+{
+    (void)p;
+    (void)heap;
+    (void)type;
+
+    #warning Must implement your own free
+}
+
+/* Required for normal math (!USE_FAST_MATH) */
+void *myRealloc(void *p, size_t n, void* heap, int type)
+{
+    (void)p;
+    (void)n;
+    (void)heap;
+    (void)type;
+
+    #warning Must implement your own realloc
+
+    return NULL;
+}
+#endif /* XMALLOC_OVERRIDE */