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2009-09-10 Michael Snyder <msnyder@vmware.com>

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* remote.c (PACKET_bc, PACKET_bs): New enums.
	(remote_protocol_features): Add ReverseStep, ReverseContinue.
	(remote_resume): Check for reverse capability.
	(_initialize_remote): Add packet config for "bs" and "bc" packets.
	* NEWS (new options): Mention set/show for "bs" and "bc" packets.
This commit is contained in:
Michael Snyder 2009-09-10 21:02:46 +00:00
parent 14fb1bac2d
commit 40ab02cedc
3 changed files with 45 additions and 5 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2009-09-10 Michael Snyder <msnyder@vmware.com>
* remote.c (PACKET_bc, PACKET_bs): New enums.
(remote_protocol_features): Add ReverseStep, ReverseContinue.
(remote_resume): Check for reverse capability.
(_initialize_remote): Add packet config for "bs" and "bc" packets.
* NEWS (new options): Mention set/show for "bs" and "bc" packets.
2009-09-10 Joel Brobecker <brobecker@adacore.com>
* top.c (interactive_mode): New static variable.

8
gdb/NEWS
View File

@ -309,6 +309,14 @@ show remote write-siginfo-object
Control use of remote protocol `qXfer:siginfo:write' (write-siginfo-object)
packet.
set remote reverse-continue
show remote reverse-continue
Control use of remote protocol 'bc' (reverse-continue) packet.
set remote reverse-step
show remote reverse-step
Control use of remote protocol 'bs' (reverse-step) packet.
set displaced-stepping
show displaced-stepping
Control displaced stepping mode. Displaced stepping is a way to

34
gdb/remote.c
View File

@ -1000,6 +1000,8 @@ enum {
PACKET_qXfer_siginfo_write,
PACKET_qAttached,
PACKET_ConditionalTracepoints,
PACKET_bc,
PACKET_bs,
PACKET_MAX
};
@ -3051,6 +3053,10 @@ static struct protocol_feature remote_protocol_features[] = {
PACKET_qXfer_siginfo_write },
{ "ConditionalTracepoints", PACKET_DISABLE, remote_cond_tracepoint_feature,
PACKET_ConditionalTracepoints },
{ "ReverseContinue", PACKET_DISABLE, remote_supported_packet,
PACKET_bc },
{ "ReverseStep", PACKET_DISABLE, remote_supported_packet,
PACKET_bs },
};
static void
@ -3801,8 +3807,10 @@ remote_resume (struct target_ops *ops,
remote_pass_signals ();
/* The vCont packet doesn't need to specify threads via Hc. */
if (remote_vcont_resume (ptid, step, siggnal))
goto done;
/* No reverse support (yet) for vCont. */
if (execution_direction != EXEC_REVERSE)
if (remote_vcont_resume (ptid, step, siggnal))
goto done;
/* All other supported resume packets do use Hc, so set the continue
thread. */
@ -3818,6 +3826,14 @@ remote_resume (struct target_ops *ops,
if (info_verbose && siggnal != TARGET_SIGNAL_0)
warning (" - Can't pass signal %d to target in reverse: ignored.\n",
siggnal);
if (step
&& remote_protocol_packets[PACKET_bs].support == PACKET_DISABLE)
error (_("Remote reverse-step not supported."));
if (!step
&& remote_protocol_packets[PACKET_bc].support == PACKET_DISABLE)
error ("_(Remote reverse-continue not supported."));
strcpy (buf, step ? "bs" : "bc");
}
else if (siggnal != TARGET_SIGNAL_0)
@ -8730,12 +8746,14 @@ remote_command (char *args, int from_tty)
help_list (remote_cmdlist, "remote ", -1, gdb_stdout);
}
static int remote_target_can_reverse = 1;
static int
remote_can_execute_reverse (void)
{
return remote_target_can_reverse;
if (remote_protocol_packets[PACKET_bs].support == PACKET_ENABLE
|| remote_protocol_packets[PACKET_bc].support == PACKET_ENABLE)
return 1;
else
return 0;
}
static int
@ -9165,6 +9183,12 @@ Show the maximum size of the address (in bits) in a memory packet."), NULL,
"qGetTLSAddr", "get-thread-local-storage-address",
0);
add_packet_config_cmd (&remote_protocol_packets[PACKET_bc],
"bc", "reverse-continue", 0);
add_packet_config_cmd (&remote_protocol_packets[PACKET_bs],
"bs", "reverse-step", 0);
add_packet_config_cmd (&remote_protocol_packets[PACKET_qSupported],
"qSupported", "supported-packets", 0);