Kill ARP cache, kill qprofile

examples/ti/ek-tm4c1294xl-freertos-mip/main.c

@@ -32,7 +32,7 @@ static void ethernet_init(void) {
             GPIO_PULL_NONE, 5);  // EN0LED1
   gpio_init(LED4, GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_HIGH,
             GPIO_PULL_NONE, 5);  // EN0LED0
-  nvic_enable_irq(40);  // Setup Ethernet IRQ handler
+  nvic_enable_irq(40);           // Setup Ethernet IRQ handler
   // Initialize Ethernet clocks, see datasheet section 5
   // Turn Flash Prefetch off (silicon errata ETH#02)
   volatile uint32_t *IMC = (uint32_t *) 0x400FD000;
@@ -85,15 +85,15 @@ static void blinker(void *args) {
   for (;;) {
     gpio_toggle(LED1);
     vTaskDelay(pdMS_TO_TICKS(750));
-    (void)args;//MG_INFO(("blink %s,  RAM: %u", (char *) args, xPortGetFreeHeapSize()));
+    (void) args;  // MG_INFO(("blink %s,  RAM: %u", (char *) args,
+                  // xPortGetFreeHeapSize()));
   }
 }
 
 int main(void) {
-  static struct uart *uart = UART0;  // Use UART0 (attached to ICDI)
-  clock_init();                      // Set clock to 120MHz
-  systick_init(FREQ / 1000);  // Tick every 1 ms
-  uart_init(uart, 115200);   // Initialise UART
+  clock_init();                   // Set clock to 120MHz
+  systick_init(FREQ / 1000);      // Tick every 1 ms
+  uart_init(UART_DEBUG, 115200);  // Initialise UART
   xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
   xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
   vTaskStartScheduler();  // This blocks

examples/ti/ek-tm4c1294xl-freertos-mip/mcu.h

@@ -190,6 +190,10 @@ struct uart {
 
 #define UART0 USART(0)
 
+#ifndef UART_DEBUG
+#define UART_DEBUG UART0
+#endif
+
 static inline void uart_init(struct uart *uart, unsigned long baud) {
   struct uarthw {
     uint16_t rx, tx;  // pins

examples/ti/ek-tm4c1294xl-freertos-mip/syscalls.c

@@ -8,12 +8,6 @@ int _fstat(int fd, struct stat *st) {
   return 0;
 }
 
-int _write(int fd, char *ptr, int len) {
-  (void) fd, (void) ptr, (void) len;
-  if (fd == 1) uart_write_buf(UART0, ptr, (size_t) len);
-  return len;
-}
-
 void *_sbrk(int incr) {
   extern char _end;
   static unsigned char *heap = NULL;
@@ -24,6 +18,11 @@ void *_sbrk(int incr) {
   return prev_heap;
 }
 
+int _open(const char *path) {
+  (void) path;
+  return -1;
+}
+
 int _close(int fd) {
   (void) fd;
   return -1;
@@ -34,12 +33,53 @@ int _isatty(int fd) {
   return 1;
 }
 
+int _lseek(int fd, int ptr, int dir) {
+  (void) fd, (void) ptr, (void) dir;
+  return 0;
+}
+
+void _exit(int status) {
+  (void) status;
+  for (;;) asm volatile("BKPT #0");
+}
+
+void _kill(int pid, int sig) {
+  (void) pid, (void) sig;
+}
+
+int _getpid(void) {
+  return -1;
+}
+
+int _write(int fd, char *ptr, int len) {
+  (void) fd, (void) ptr, (void) len;
+  if (fd == 1) uart_write_buf(UART_DEBUG, ptr, (size_t) len);
+  return -1;
+}
+
 int _read(int fd, char *ptr, int len) {
   (void) fd, (void) ptr, (void) len;
   return -1;
 }
 
-int _lseek(int fd, int ptr, int dir) {
-  (void) fd, (void) ptr, (void) dir;
-  return 0;
+int _link(const char *a, const char *b) {
+  (void) a, (void) b;
+  return -1;
 }
+
+int _unlink(const char *a) {
+  (void) a;
+  return -1;
+}
+
+int _stat(const char *path, struct stat *st) {
+  (void) path, (void) st;
+  return -1;
+}
+
+int mkdir(const char *path, mode_t mode) {
+  (void) path, (void) mode;
+  return -1;
+}
+
+void _init(void) {}