added stdio.h to includes for DBG compilation

src/arch/i386/core/load_buffer.c

+#include <stdio.h>
 #include "io.h"
 #include "load_buffer.h"
 

src/arch/i386/core/relocate.c

+#include <stdio.h>
 #include <io.h>
 #include <registers.h>
 #include <memmap.h>

src/arch/i386/firmware/pcbios/hidemem.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <realmode.h>
 #include <biosint.h>
 

src/arch/i386/firmware/pcbios/memmap.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stdint.h>
 #include <errno.h>
 #include <realmode.h>

src/arch/i386/interface/pcbios/int13.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stdint.h>
 #include <limits.h>
 #include <byteswap.h>

src/arch/i386/interface/pxe/pxe_call.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <gpxe/uaccess.h>
 #include <registers.h>
 #include <biosint.h>

src/core/resolv.c

 #include "resolv.h"
+#include "stdio.h"
 
 static struct resolver resolvers[0] __table_start(resolver);
 static struct resolver resolvers_end[0] __table_end(resolver);

src/crypto/ssl.c

+#include <stdio.h>
 #include "ssl.h"
 #include "ssl_constructs.h"
 #include <string.h> // for bcopy()

src/drivers/bitbash/i2c_bit.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <errno.h>
 #include <assert.h>
+#include <timer.h>
 #include <gpxe/bitbash.h>
 #include <gpxe/i2c.h>
 

src/drivers/bitbash/spi_bit.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>

src/drivers/block/ata.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stddef.h>
 #include <string.h>
 #include <assert.h>

src/drivers/bus/pci.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stdint.h>
 #include <string.h>
 #include <errno.h>

src/drivers/bus/pciextra.c

+#include <stdio.h>
 #include <stdint.h>
 #include <gpxe/pci.h>
 

src/interface/pxe/pxe_loader.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include "pxe.h"
 
 /* PXENV_UNDI_LOADER

src/interface/pxe/pxe_tftp.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include "pxe.h"
 
 static int pxe_tftp_read_block ( unsigned char *data, unsigned int block,

src/interface/pxe/pxe_udp.c

  *
  */
 
+#include <stdio.h>
 #include <string.h>
 #include <byteswap.h>
 #include <gpxe/udp.h>

src/interface/pxe/pxe_undi.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include "pxe.h"
 
 /* PXENV_UNDI_STARTUP

src/net/arp.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include "stdio.h"
 #include <stdint.h>
 #include <string.h>
 #include <byteswap.h>

src/net/icmpv6.c

+#include <stdio.h>
 #include <stdint.h>
 #include <string.h>
 #include <byteswap.h>
  * This function prepares a neighbour solicitation packet and sends it to the
  * network layer.
  */
-int icmp6_send_solicit ( struct net_device *netdev, struct in6_addr *src,
+int icmp6_send_solicit ( struct net_device *netdev, struct in6_addr *src __unused,
 			 struct in6_addr *dest ) {
 	union {
 		struct sockaddr_in6 sin6;
 	st_dest.sin6.sin6_addr.in6_u.u6_addr8[13] = 0xff;
 	
 	/* Send packet over IP6 */
-	tcpip_tx ( pkb, &icmp6_protocol, &st_dest.st );
+	return ( tcpip_tx ( pkb, &icmp6_protocol, &st_dest.st ) );
 }
 
 /**

src/net/ndp.c

+#include "stdio.h"
 #include <stdint.h>
 #include <string.h>
 #include <byteswap.h>
  * @v st_src	Source address
  * @v st_dest	Destination address 
  */
-int ndp_process_advert ( struct pk_buff *pkb, struct sockaddr_tcpip *st_src,
-			   struct sockaddr_tcpip *st_dest ) {
+int ndp_process_advert ( struct pk_buff *pkb, struct sockaddr_tcpip *st_src __unused,
+			   struct sockaddr_tcpip *st_dest __unused ) {
 	struct neighbour_advert *nadvert = pkb->data;
 	struct ndp_entry *ndp;
 

src/net/netdevice.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stdint.h>
 #include <byteswap.h>
 #include <string.h>

src/net/retry.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <stddef.h>
 #include <latch.h>
 #include <gpxe/list.h>

src/net/tcp.c

+#include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <assert.h>

src/net/tcpip.c

+#include <stdio.h>
 #include <stdint.h>
 #include <string.h>
 #include <errno.h>

src/net/udp.c

+#include <stdio.h>
 #include <stdint.h>
 #include <string.h>
 #include <assert.h>

src/net/udp/dhcp.c

  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <stdio.h>
 #include <string.h>
 #include <errno.h>
 #include <assert.h>

src/proto/nmb.c

+#include "stdio.h"
 #include "resolv.h"
 #include "string.h"
 #include "dns.h"