Use debug_printf to print debug message

Some functions in aarch64-linux-nat.c and linux-aarch64-low.c looks
the same except for the code printing debug message.  In GDB, we use
fprintf_unfiltered (gdb_stdlog, ...) while in GDBserver, we use
fprintf (stderr, ...).  This patch is to change them to use debug_printf
so that these functions are the same, and I can move them to a common
place in the following patch.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* aarch64-linux-nat.c (aarch64_show_debug_reg_state): Use
	debug_printf.
	(aarch64_handle_unaligned_watchpoint): Likewise.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

	* linux-aarch64-low.c (aarch64_show_debug_reg_state): Use
	debug_printf.
	(aarch64_handle_unaligned_watchpoint): Likewise.

4 files changed, 50 insertions, 40 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 6f068b5..987db38 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
 2015-07-17  Yao Qi  <yao.qi@linaro.org>
 
+	* aarch64-linux-nat.c (aarch64_show_debug_reg_state): Use
+	debug_printf.
+	(aarch64_handle_unaligned_watchpoint): Likewise.
+
+2015-07-17  Yao Qi  <yao.qi@linaro.org>
+
 	* aarch64-linux-nat.c (aarch64_dr_state_insert_one_point): Change
 	argument type's type to 'enum target_hw_bp_type'.
 	(aarch64_dr_state_remove_one_point): Likewise.
diff --git a/gdb/aarch64-linux-nat.c b/gdb/aarch64-linux-nat.c
index 5b20f80..7dc0a6e 100644
--- a/gdb/aarch64-linux-nat.c
+++ b/gdb/aarch64-linux-nat.c
@@ -429,30 +429,28 @@ aarch64_show_debug_reg_state (struct aarch64_debug_reg_state *state,
 {
   int i;
 
-  fprintf_unfiltered (gdb_stdlog, "%s", func);
+  debug_printf ("%s", func);
   if (addr || len)
-    fprintf_unfiltered (gdb_stdlog, " (addr=0x%08lx, len=%d, type=%s)",
-			(unsigned long) addr, len,
-			type == hw_write ? "hw-write-watchpoint"
-			: (type == hw_read ? "hw-read-watchpoint"
-			   : (type == hw_access ? "hw-access-watchpoint"
-			      : (type == hw_execute ? "hw-breakpoint"
-				 : "??unknown??"))));
-  fprintf_unfiltered (gdb_stdlog, ":\n");
-
-  fprintf_unfiltered (gdb_stdlog, "\tBREAKPOINTs:\n");
+    debug_printf (" (addr=0x%08lx, len=%d, type=%s)",
+		  (unsigned long) addr, len,
+		  type == hw_write ? "hw-write-watchpoint"
+		  : (type == hw_read ? "hw-read-watchpoint"
+		     : (type == hw_access ? "hw-access-watchpoint"
+			: (type == hw_execute ? "hw-breakpoint"
+			   : "??unknown??"))));
+  debug_printf (":\n");
+
+  debug_printf ("\tBREAKPOINTs:\n");
   for (i = 0; i < aarch64_num_bp_regs; i++)
-    fprintf_unfiltered (gdb_stdlog,
-			"\tBP%d: addr=0x%08lx, ctrl=0x%08x, ref.count=%d\n",
-			i, state->dr_addr_bp[i],
-			state->dr_ctrl_bp[i], state->dr_ref_count_bp[i]);
+    debug_printf ("\tBP%d: addr=0x%08lx, ctrl=0x%08x, ref.count=%d\n",
+		  i, state->dr_addr_bp[i],
+		  state->dr_ctrl_bp[i], state->dr_ref_count_bp[i]);
 
-  fprintf_unfiltered (gdb_stdlog, "\tWATCHPOINTs:\n");
+  debug_printf ("\tWATCHPOINTs:\n");
   for (i = 0; i < aarch64_num_wp_regs; i++)
-    fprintf_unfiltered (gdb_stdlog,
-			"\tWP%d: addr=0x%08lx, ctrl=0x%08x, ref.count=%d\n",
-			i, state->dr_addr_wp[i],
-			state->dr_ctrl_wp[i], state->dr_ref_count_wp[i]);
+    debug_printf ("\tWP%d: addr=0x%08lx, ctrl=0x%08x, ref.count=%d\n",
+		  i, state->dr_addr_wp[i],
+		  state->dr_ctrl_wp[i], state->dr_ref_count_wp[i]);
 }
 
 /* Fill GDB's register array with the general-purpose register values
@@ -1421,7 +1419,7 @@ aarch64_handle_unaligned_watchpoint (int type, CORE_ADDR addr, int len,
 						 aligned_len);
 
       if (show_debug_regs)
-	fprintf_unfiltered (gdb_stdlog,
+	debug_printf (
 "handle_unaligned_watchpoint: is_insert: %d\n"
 "                             aligned_addr: 0x%08lx, aligned_len: %d\n"
 "                                next_addr: 0x%08lx,    next_len: %d\n",
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 73cb392..e46d2f8 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,9 @@
+2015-07-17  Yao Qi  <yao.qi@linaro.org>
+
+	* linux-aarch64-low.c (aarch64_show_debug_reg_state): Use
+	debug_printf.
+	(aarch64_handle_unaligned_watchpoint): Likewise.
+
 2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	Revert the previous 3 commits:
diff --git a/gdb/gdbserver/linux-aarch64-low.c b/gdb/gdbserver/linux-aarch64-low.c
index 4534a47..8a50546 100644
--- a/gdb/gdbserver/linux-aarch64-low.c
+++ b/gdb/gdbserver/linux-aarch64-low.c
@@ -313,28 +313,28 @@ aarch64_show_debug_reg_state (struct aarch64_debug_reg_state *state,
 {
   int i;
 
-  fprintf (stderr, "%s", func);
+  debug_printf ("%s", func);
   if (addr || len)
-    fprintf (stderr, " (addr=0x%08lx, len=%d, type=%s)",
-	     (unsigned long) addr, len,
-	     type == hw_write ? "hw-write-watchpoint"
-	     : (type == hw_read ? "hw-read-watchpoint"
-		: (type == hw_access ? "hw-access-watchpoint"
-		   : (type == hw_execute ? "hw-breakpoint"
-		      : "??unknown??"))));
-  fprintf (stderr, ":\n");
-
-  fprintf (stderr, "\tBREAKPOINTs:\n");
+    debug_printf (" (addr=0x%08lx, len=%d, type=%s)",
+		  (unsigned long) addr, len,
+		  type == hw_write ? "hw-write-watchpoint"
+		  : (type == hw_read ? "hw-read-watchpoint"
+		     : (type == hw_access ? "hw-access-watchpoint"
+			: (type == hw_execute ? "hw-breakpoint"
+			   : "??unknown??"))));
+  debug_printf (":\n");
+
+  debug_printf ("\tBREAKPOINTs:\n");
   for (i = 0; i < aarch64_num_bp_regs; i++)
-    fprintf (stderr, "\tBP%d: addr=0x%s, ctrl=0x%08x, ref.count=%d\n",
-	     i, paddress (state->dr_addr_bp[i]),
-	     state->dr_ctrl_bp[i], state->dr_ref_count_bp[i]);
+    debug_printf ("\tBP%d: addr=0x%s, ctrl=0x%08x, ref.count=%d\n",
+		  i, paddress (state->dr_addr_bp[i]),
+		  state->dr_ctrl_bp[i], state->dr_ref_count_bp[i]);
 
-  fprintf (stderr, "\tWATCHPOINTs:\n");
+  debug_printf ("\tWATCHPOINTs:\n");
   for (i = 0; i < aarch64_num_wp_regs; i++)
-    fprintf (stderr, "\tWP%d: addr=0x%s, ctrl=0x%08x, ref.count=%d\n",
-	     i, paddress (state->dr_addr_wp[i]),
-	     state->dr_ctrl_wp[i], state->dr_ref_count_wp[i]);
+    debug_printf ("\tWP%d: addr=0x%s, ctrl=0x%08x, ref.count=%d\n",
+		  i, paddress (state->dr_addr_wp[i]),
+		  state->dr_ctrl_wp[i], state->dr_ref_count_wp[i]);
 }
 
 static void
@@ -911,7 +911,7 @@ aarch64_handle_unaligned_watchpoint (enum target_hw_bp_type type,
 						 aligned_len);
 
       if (show_debug_regs)
-	fprintf (stderr,
+	debug_printf (
  "handle_unaligned_watchpoint: is_insert: %d\n"
  "                             aligned_addr: 0x%s, aligned_len: %d\n"
  "                                next_addr: 0x%s,    next_len: %d\n",