[PATCH v2 12/13] hw/dma/pl330: Use qemu_hexdump_line() to avoid sprintf()

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

sprintf() is deprecated on Darwin since macOS 13.0 / XCode 14.1,
resulting in painful developper experience.

Use qemu_hexdump_line() to avoid sprintf() calls, silencing:

  [5/8] Compiling C object libcommon.fa.p/hw_dma_pl330.c.o
  hw/dma/pl330.c:333:13: warning: 'sprintf' is deprecated:
    This function is provided for compatibility reasons only.
    Due to security concerns inherent in the design of sprintf(3),
    it is highly recommended that you use snprintf(3) instead.
    [-Wdeprecated-declarations]
            sprintf(tmpbuf + strlen(tmpbuf), " %02x", buf[b + i]);
            ^

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/dma/pl330.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/hw/dma/pl330.c b/hw/dma/pl330.c
index 70a502d245..0435378b7e 100644
--- a/hw/dma/pl330.c
+++ b/hw/dma/pl330.c
@@ -15,6 +15,7 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/cutils.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
 #include "hw/sysbus.h"
@@ -317,21 +318,14 @@ typedef struct PL330InsnDesc {
 
 static void pl330_hexdump(uint8_t *buf, size_t size)
 {
-    unsigned int b, i, len;
-    char tmpbuf[80];
+    unsigned int b, len;
 
     for (b = 0; b < size; b += 16) {
         len = size - b;
         if (len > 16) {
             len = 16;
         }
-        tmpbuf[0] = '\0';
-        for (i = 0; i < len; i++) {
-            if ((i % 4) == 0) {
-                strcat(tmpbuf, " ");
-            }
-            sprintf(tmpbuf + strlen(tmpbuf), " %02x", buf[b + i]);
-        }
+        g_autofree char *tmpbuf = qemu_hexdump_line(buf, b, len, false);
         trace_pl330_hexdump(b, tmpbuf);
     }
 }
-- 
2.41.0