gdb: Add fixes for stdint and remote debug on xtensa.

Take both stdint and remote debug fixes from SOF.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>

Author: lrgirdwo

gdb/arch/xtensa.h

@@ -20,6 +20,8 @@
 #ifndef GDB_ARCH_XTENSA_H
 #define GDB_ARCH_XTENSA_H
 
+#include <stdint.h>
+
 /* Xtensa ELF core file register set representation ('.reg' section).
    Copied from target-side ELF header <xtensa/elf.h>.  */
 

gdb/remote.c

@@ -8970,11 +8970,17 @@ remote_target::process_g_packet (struct regcache *regcache)
   buf_len = strlen (rs->buf.data ());
 
   /* Further sanity checks, with knowledge of the architecture.  */
-  if (buf_len > 2 * rsa->sizeof_g_packet)
-    error (_("Remote 'g' packet reply is too long (expected %ld bytes, got %d "
-	     "bytes): %s"),
-	   rsa->sizeof_g_packet, buf_len / 2,
-	   rs->buf.data ());
+   if(buf_len > 2 * rsa->sizeof_g_packet) {
+        rsa->sizeof_g_packet = buf_len;
+        for(i = 0; i < gdbarch_num_regs(gdbarch); i++){
+            if(rsa->regs[i].pnum == -1)
+               continue;
+            if(rsa->regs[i].offset >= rsa->sizeof_g_packet)
+               rsa->regs[i].in_g_packet = 0;
+            else
+               rsa->regs[i].in_g_packet = 1;
+        }
+  }
 
   /* Save the size of the packet sent to us by the target.  It is used
      as a heuristic when determining the max size of packets that the