* inferior.h (disable_randomization): Declare.

	* infrun.c (disable_randomization): New global variable.
	(show_disable_randomization): New function.
	(set_disable_randomization): Likewise.
	(_initialize_infrun): Install set/show disable-randomization
	commands.
	* linux-nat.c (disable_randomization): Remove.
	(show_disable_randomization): Likewise.
	(set_disable_randomization): Likewise.
	(_initialize_linux_nat): No longer install set/show
	disable-randomization commands here.
	(linux_nat_supports_disable_randomization): New function.
	(linux_nat_add_target): Install it.
	* remote.c (PACKET_QDisableRandomization): New enum value.
	(remote_protocol_packets): Support QDisableRandomization.
	(_initialize_remote): Likewise.
	(remote_supports_disable_randomization): New function.
	(init_remote_ops): Install it.
	(extended_remote_supports_disable_randomization): New function.
	(init_extended_remote_ops): Install it.
	(extended_remote_disable_randomization): New function.
	(extended_remote_create_inferior_1): Call it.
	* target.h (struct target_ops): Add to_supports_disable_randomization.
	(target_supports_disable_randomization): Add prototype.
	* target.c (target_supports_disable_randomization): New function.
	(find_default_supports_disable_randomization): Likewise.
	(init_dummy_target): Install it.

doc/
	* gdb.texinfo (Starting your Program): "set disable-randomization"
	is no longer Linux-specific.
	(Remote Configuration): Document "set remote
	disable-randomization-packet".
	(General Query Packets): Document "QDisableRandomization" packet
	and add it to "qSupported" list.

gdbserver/
	* configure.ac: Check support for personality routine.
	* configure: Regenerate.
	* config.in: Likewise.
	* linux-low.c: Include <sys/personality.h>.
	Define ADDR_NO_RANDOMIZE if necessary.
	(linux_create_inferior): Disable address space randomization when
	forking inferior, if requested.
	(linux_supports_disable_randomization): New function.
	(linux_target_ops): Install it.
	* server.h (disable_randomization): Declare.
	* server.c (disable_randomization): New global variable.
	(handle_general_set): Handle QDisableRandomization.
	(handle_query): Likewise for qSupported.
	(main): Support --disable-randomization and --no-disable-randomization
	command line arguments.
	* target.h (struct target_ops): Add supports_disable_randomization.
	(target_supports_disable_randomization): New macro.

1 files changed, 43 insertions, 0 deletions

diff --git a/gdb/remote.c b/gdb/remote.c
index 1c9e965..32e68f3 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -1263,6 +1263,7 @@ enum {
   PACKET_TracepointSource,
   PACKET_QAllow,
   PACKET_qXfer_fdpic,
+  PACKET_QDisableRandomization,
   PACKET_MAX
 };
 
@@ -3761,6 +3762,8 @@ static struct protocol_feature remote_protocol_features[] = {
     remote_enable_disable_tracepoint_feature, -1 },
   { "qXfer:fdpic:read", PACKET_DISABLE, remote_supported_packet,
     PACKET_qXfer_fdpic },
+  { "QDisableRandomization", PACKET_DISABLE, remote_supported_packet,
+    PACKET_QDisableRandomization },
 };
 
 static char *remote_support_xml;
@@ -7484,6 +7487,28 @@ extended_remote_mourn (struct target_ops *ops)
 }
 
 static int
+extended_remote_supports_disable_randomization (void)
+{
+  return (remote_protocol_packets[PACKET_QDisableRandomization].support
+	  == PACKET_ENABLE);
+}
+
+static void
+extended_remote_disable_randomization (int val)
+{
+  struct remote_state *rs = get_remote_state ();
+  char *reply;
+
+  sprintf (rs->buf, "QDisableRandomization:%x", val);
+  putpkt (rs->buf);
+  reply = remote_get_noisy_reply (&target_buf, &target_buf_size);
+  if (*reply == '\0')
+    error (_("Target does not support QDisableRandomization."));
+  if (strcmp (reply, "OK") != 0)
+    error (_("Bogus QDisableRandomization reply from target: %s"), reply);
+}
+
+static int
 extended_remote_run (char *args)
 {
   struct remote_state *rs = get_remote_state ();
@@ -7559,6 +7584,10 @@ extended_remote_create_inferior_1 (char *exec_file, char *args,
   if (target_can_async_p ())
     target_async (inferior_event_handler, 0);
 
+  /* Disable address space randomization if requested (and supported).  */
+  if (extended_remote_supports_disable_randomization ())
+    extended_remote_disable_randomization (disable_randomization);
+
   /* Now restart the remote server.  */
   if (extended_remote_run (args) == -1)
     {
@@ -9665,6 +9694,13 @@ remote_supports_non_stop (void)
 }
 
 static int
+remote_supports_disable_randomization (void)
+{
+  /* Only supported in extended mode.  */
+  return 0;
+}
+
+static int
 remote_supports_multi_process (void)
 {
   struct remote_state *rs = get_remote_state ();
@@ -10420,6 +10456,8 @@ Specify the serial device it is connected to\n\
   remote_ops.to_terminal_ours = remote_terminal_ours;
   remote_ops.to_supports_non_stop = remote_supports_non_stop;
   remote_ops.to_supports_multi_process = remote_supports_multi_process;
+  remote_ops.to_supports_disable_randomization
+    = remote_supports_disable_randomization;
   remote_ops.to_supports_enable_disable_tracepoint = remote_supports_enable_disable_tracepoint;
   remote_ops.to_trace_init = remote_trace_init;
   remote_ops.to_download_tracepoint = remote_download_tracepoint;
@@ -10472,6 +10510,8 @@ Specify the serial device it is connected to (e.g. /dev/ttya).";
   extended_remote_ops.to_detach = extended_remote_detach;
   extended_remote_ops.to_attach = extended_remote_attach;
   extended_remote_ops.to_kill = extended_remote_kill;
+  extended_remote_ops.to_supports_disable_randomization
+    = extended_remote_supports_disable_randomization;
 }
 
 static int
@@ -10944,6 +10984,9 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL,
   add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_fdpic],
 			 "qXfer:fdpic:read", "read-fdpic-loadmap", 0);
 
+  add_packet_config_cmd (&remote_protocol_packets[PACKET_QDisableRandomization],
+			 "QDisableRandomization", "disable-randomization", 0);
+
   /* Keep the old ``set remote Z-packet ...'' working.  Each individual
      Z sub-packet has its own set and show commands, but users may
      have sets to this variable in their .gdbinit files (or in their