util/hexdump: Convert to take a void pointer argument

Most uses of qemu_hexdump() do not take an array of char
as input, forcing use of cast. Since we can use this
helper to dump any kind of buffer, use a pointer to void
argument instead.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200822180950.1343963-2-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/dma/xlnx_dpdma.c

@@ -388,7 +388,7 @@ static void xlnx_dpdma_dump_descriptor(DPDMADescriptor *desc)
 {
     if (DEBUG_DPDMA) {
         qemu_log("DUMP DESCRIPTOR:\n");
-        qemu_hexdump((char *)desc, stdout, "", sizeof(DPDMADescriptor));
+        qemu_hexdump(desc, stdout, "", sizeof(DPDMADescriptor));
     }
 }
 

hw/net/fsl_etsec/etsec.c

@@ -357,7 +357,7 @@ static ssize_t etsec_receive(NetClientState *nc,
 
 #if defined(HEX_DUMP)
     fprintf(stderr, "%s receive size:%zd\n", nc->name, size);
-    qemu_hexdump((void *)buf, stderr, "", size);
+    qemu_hexdump(buf, stderr, "", size);
 #endif
     /* Flush is unnecessary as are already in receiving path */
     etsec->need_flush = false;

hw/sd/sd.c

@@ -1785,7 +1785,7 @@ send_response:
     }
 
 #ifdef DEBUG_SD
-    qemu_hexdump((const char *)response, stderr, "Response", rsplen);
+    qemu_hexdump(response, stderr, "Response", rsplen);
 #endif
 
     return rsplen;

hw/usb/redirect.c

@@ -240,7 +240,7 @@ static void usbredir_log_data(USBRedirDevice *dev, const char *desc,
     if (dev->debug < usbredirparser_debug_data) {
         return;
     }
-    qemu_hexdump((char *)data, stderr, desc, len);
+    qemu_hexdump(data, stderr, desc, len);
 }
 
 /*

include/qemu-common.h

@@ -138,7 +138,8 @@ int os_parse_cmd_args(int index, const char *optarg);
  * Hexdump a buffer to a file. An optional string prefix is added to every line
  */
 
-void qemu_hexdump(const char *buf, FILE *fp, const char *prefix, size_t size);
+void qemu_hexdump(const void *bufptr, FILE *fp,
+                  const char *prefix, size_t size);
 
 /*
  * helper to parse debug environment variables

net/colo-compare.c

@@ -494,9 +494,9 @@ sec:
         g_queue_push_head(&conn->secondary_list, spkt);
 
         if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE)) {
-            qemu_hexdump((char *)ppkt->data, stderr,
+            qemu_hexdump(ppkt->data, stderr,
                         "colo-compare ppkt", ppkt->size);
-            qemu_hexdump((char *)spkt->data, stderr,
+            qemu_hexdump(spkt->data, stderr,
                         "colo-compare spkt", spkt->size);
         }
 
@@ -535,9 +535,9 @@ static int colo_packet_compare_udp(Packet *spkt, Packet *ppkt)
         trace_colo_compare_udp_miscompare("primary pkt size", ppkt->size);
         trace_colo_compare_udp_miscompare("Secondary pkt size", spkt->size);
         if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE)) {
-            qemu_hexdump((char *)ppkt->data, stderr, "colo-compare pri pkt",
+            qemu_hexdump(ppkt->data, stderr, "colo-compare pri pkt",
                          ppkt->size);
-            qemu_hexdump((char *)spkt->data, stderr, "colo-compare sec pkt",
+            qemu_hexdump(spkt->data, stderr, "colo-compare sec pkt",
                          spkt->size);
         }
         return -1;
@@ -578,9 +578,9 @@ static int colo_packet_compare_icmp(Packet *spkt, Packet *ppkt)
         trace_colo_compare_icmp_miscompare("Secondary pkt size",
                                            spkt->size);
         if (trace_event_get_state_backends(TRACE_COLO_COMPARE_MISCOMPARE)) {
-            qemu_hexdump((char *)ppkt->data, stderr, "colo-compare pri pkt",
+            qemu_hexdump(ppkt->data, stderr, "colo-compare pri pkt",
                          ppkt->size);
-            qemu_hexdump((char *)spkt->data, stderr, "colo-compare sec pkt",
+            qemu_hexdump(spkt->data, stderr, "colo-compare sec pkt",
                          spkt->size);
         }
         return -1;

net/net.c

@@ -636,7 +636,7 @@ static ssize_t qemu_send_packet_async_with_flags(NetClientState *sender,
 
 #ifdef DEBUG_NET
     printf("qemu_send_packet_async:\n");
-    qemu_hexdump((const char *)buf, stdout, "net", size);
+    qemu_hexdump(buf, stdout, "net", size);
 #endif
 
     if (sender->link_down || !sender->peer) {

util/hexdump.c

@@ -16,8 +16,10 @@
 #include "qemu/osdep.h"
 #include "qemu-common.h"
 
-void qemu_hexdump(const char *buf, FILE *fp, const char *prefix, size_t size)
+void qemu_hexdump(const void *bufptr, FILE *fp,
+                  const char *prefix, size_t size)
 {
+    const char *buf = bufptr;
     unsigned int b, len, i, c;
 
     for (b = 0; b < size; b += 16) {