2010-04-08 Stan Shebs <stan@codesourcery.com>
Pedro Alves <pedro@codesourcery.com> * tracepoint.h (struct trace_status): New fields disconnected_tracing and circular_buffer. (disconnect_tracing): Rename from disconnect_or_stop_tracing. * tracepoint.c (trace_status_command): Display target's status for disconnected tracing and circular buffer. (disconnect_tracing): Rename from disconnect_or_stop_tracing, add query for non-disconnected-tracing case, remove the stop_tracing call. (tfile_open): Clear disconnected and circular buffer status. (trace_save): Save disconnected and circular buffer status. (parse_trace_status): Parse disconnected and circular buffer status, also recognize disconnected as a stop reason. * remote.c (remote_set_disconnected_tracing): Only set QTDisconnected if the remote end supports disconnected tracing. Warn otherwise, if trying to enable disconnected tracing. * infcmd.c (detach_command): Update disconnect_tracing call. * cli/cli-cmds.c (quit_command): Ditto. * gdb.texinfo (Tracepoint Packets): Describe disconn and circular trace status fields.
This commit is contained in:
Stan Shebs
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2010-04-08 Stan Shebs <stan@codesourcery.com>
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Pedro Alves <pedro@codesourcery.com>
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* tracepoint.h (struct trace_status): New fields disconnected_tracing
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and circular_buffer.
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(disconnect_tracing): Rename from disconnect_or_stop_tracing.
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* tracepoint.c (trace_status_command): Display target's status for
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disconnected tracing and circular buffer.
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(disconnect_tracing): Rename from disconnect_or_stop_tracing, add
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query for non-disconnected-tracing case, remove the stop_tracing
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call.
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(tfile_open): Clear disconnected and circular buffer status.
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(trace_save): Save disconnected and circular buffer status.
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(parse_trace_status): Parse disconnected and circular buffer status,
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also recognize disconnected as a stop reason.
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* remote.c (remote_set_disconnected_tracing): Only set
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QTDisconnected if the remote end supports disconnected tracing.
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Warn otherwise, if trying to enable disconnected tracing.
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* infcmd.c (detach_command): Update disconnect_tracing call.
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* cli/cli-cmds.c (quit_command): Ditto.
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2010-04-08 H.J. Lu <hongjiu.lu@intel.com>
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* i387-tdep.c (i387_collect_xsave): Replace abort with
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@ -38,7 +38,7 @@
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#include "objfiles.h"
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#include "source.h"
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#include "disasm.h"
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extern void disconnect_or_stop_tracing (int from_tty);
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#include "tracepoint.h"
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#include "ui-out.h"
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@ -337,7 +337,7 @@ quit_command (char *args, int from_tty)
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if (!quit_confirm ())
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error (_("Not confirmed."));
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disconnect_or_stop_tracing (from_tty);
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disconnect_tracing (from_tty);
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quit_force (args, from_tty);
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}
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@ -1,3 +1,8 @@
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2010-04-08 Stan Shebs <stan@codesourcery.com>
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* gdb.texinfo (Tracepoint Packets): Describe disconn and circular
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trace status fields.
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2010-04-08 H.J. Lu <hongjiu.lu@intel.com>
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* gdb.texinfo (i386 Features): Make org.gnu.gdb.i386.avx
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@ -31508,10 +31508,11 @@ The trace stopped for some other reason.
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@end table
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Additional optional fields supply statistical information. Although
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not required, they are extremely useful for users monitoring the
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progress of a trace run. If a trace has stopped, and these numbers
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are reported, they must reflect the state of the just-stopped trace.
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Additional optional fields supply statistical and other information.
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Although not required, they are extremely useful for users monitoring
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the progress of a trace run. If a trace has stopped, and these
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numbers are reported, they must reflect the state of the just-stopped
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trace.
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@table @samp
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@ -31528,6 +31529,17 @@ The total size of the trace buffer, in bytes.
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@item tfree:@var{n}
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The number of bytes still unused in the buffer.
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@item circular:@var{n}
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The value of the circular trace buffer flag. @code{1} means that the
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trace buffer is circular and old trace frames will be discarded if
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necessary to make room, @code{0} means that the trace buffer is linear
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and may fill up.
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@item disconn:@var{n}
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The value of the disconnected tracing flag. @code{1} means that
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tracing will continue after @value{GDBN} disconnects, @code{0} means
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that the trace run will stop.
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@end table
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@item qTV:@var{var}
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@ -2547,7 +2547,7 @@ detach_command (char *args, int from_tty)
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if (ptid_equal (inferior_ptid, null_ptid))
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error (_("The program is not being run."));
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disconnect_or_stop_tracing (from_tty);
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disconnect_tracing (from_tty);
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target_detach (args, from_tty);
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15
gdb/remote.c
15
gdb/remote.c
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@ -9776,11 +9776,16 @@ remote_set_disconnected_tracing (int val)
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{
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struct remote_state *rs = get_remote_state ();
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sprintf (rs->buf, "QTDisconnected:%x", val);
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putpkt (rs->buf);
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remote_get_noisy_reply (&target_buf, &target_buf_size);
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if (strcmp (target_buf, "OK"))
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error (_("Target does not support this command."));
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if (rs->disconnected_tracing)
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{
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sprintf (rs->buf, "QTDisconnected:%x", val);
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putpkt (rs->buf);
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remote_get_noisy_reply (&target_buf, &target_buf_size);
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if (strcmp (target_buf, "OK"))
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error (_("Target does not support this command."));
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}
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else if (val)
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warning (_("Target does not support disconnected tracing."));
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}
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static int
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@ -1626,10 +1626,6 @@ trace_status_command (char *args, int from_tty)
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else if (ts->running)
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{
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printf_filtered (_("Trace is running on the target.\n"));
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if (disconnected_tracing)
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printf_filtered (_("Trace will continue if GDB disconnects.\n"));
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else
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printf_filtered (_("Trace will stop if GDB disconnects.\n"));
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}
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else
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{
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@ -1699,6 +1695,14 @@ trace_status_command (char *args, int from_tty)
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ts->buffer_free);
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}
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if (ts->disconnected_tracing)
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printf_filtered (_("Trace will continue if GDB disconnects.\n"));
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else
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printf_filtered (_("Trace will stop if GDB disconnects.\n"));
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if (ts->circular_buffer)
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printf_filtered (_("Trace buffer is circular.\n"));
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/* Now report on what we're doing with tfind. */
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if (traceframe_number >= 0)
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printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"),
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@ -1801,9 +1805,11 @@ trace_status_mi (int on_stop)
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ui_out_field_int (uiout, "buffer-free", (int) ts->buffer_free);
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}
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/* This function handles the details of what to do about an ongoing
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tracing run if the user has asked to detach or otherwise disconnect
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from the target. */
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void
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disconnect_or_stop_tracing (int from_tty)
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disconnect_tracing (int from_tty)
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{
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/* It can happen that the target that was tracing went away on its
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own, and we didn't notice. Get a status update, and if the
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@ -1812,18 +1818,23 @@ disconnect_or_stop_tracing (int from_tty)
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if (target_get_trace_status (current_trace_status ()) < 0)
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current_trace_status ()->running = 0;
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/* If running interactively, give the user the option to cancel and
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then decide what to do differently with the run. Scripts are
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just going to disconnect and let the target deal with it,
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according to how it's been instructed previously via
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disconnected-tracing. */
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if (current_trace_status ()->running && from_tty)
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{
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int cont = query (_("Trace is running. Continue tracing after detach? "));
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/* Note that we send the query result without affecting the
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user's setting of disconnected_tracing, so that the answer is
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a one-time-only. */
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send_disconnected_tracing_value (cont);
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/* Also ensure that we do the equivalent of a tstop command if
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tracing is not to continue after the detach. */
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if (!cont)
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stop_tracing ();
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if (current_trace_status ()->disconnected_tracing)
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{
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if (!query (_("Trace is running and will continue after detach; detach anyway? ")))
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error (_("Not confirmed."));
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}
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else
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{
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if (!query (_("Trace is running but will stop on detach; detach anyway? ")))
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error (_("Not confirmed."));
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}
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}
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/* Also we want to be out of tfind mode, otherwise things can get
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@ -2599,6 +2610,10 @@ trace_save (const char *filename, int target_does_save)
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fprintf (fp, ";tfree:%x", ts->buffer_free);
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if (ts->buffer_size >= 0)
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fprintf (fp, ";tsize:%x", ts->buffer_size);
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if (ts->disconnected_tracing)
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fprintf (fp, ";disconn:%x", ts->disconnected_tracing);
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if (ts->circular_buffer)
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fprintf (fp, ";circular:%x", ts->circular_buffer);
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fprintf (fp, "\n");
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/* Note that we want to upload tracepoints and save those, rather
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@ -3167,6 +3182,8 @@ tfile_open (char *filename, int from_tty)
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ts->stop_reason = trace_stop_reason_unknown;
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ts->traceframe_count = -1;
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ts->buffer_free = 0;
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ts->disconnected_tracing = 0;
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ts->circular_buffer = 0;
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/* Read through a section of newline-terminated lines that
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define things like tracepoints. */
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@ -3282,6 +3299,8 @@ parse_trace_status (char *line, struct trace_status *ts)
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ts->traceframes_created = -1;
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ts->buffer_free = -1;
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ts->buffer_size = -1;
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ts->disconnected_tracing = 0;
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ts->circular_buffer = 0;
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while (*p++)
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{
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@ -3310,6 +3329,11 @@ Status line: '%s'\n"), p, line);
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p = unpack_varlen_hex (++p1, &val);
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ts->stop_reason = tstop_command;
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}
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else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0)
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{
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p = unpack_varlen_hex (++p1, &val);
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ts->stop_reason = trace_disconnected;
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}
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else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0)
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{
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p2 = strchr (++p1, ':');
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@ -3348,6 +3372,16 @@ Status line: '%s'\n"), p, line);
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p = unpack_varlen_hex (++p1, &val);
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ts->buffer_size = val;
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}
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else if (strncmp (p, "disconn", p1 - p) == 0)
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{
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p = unpack_varlen_hex (++p1, &val);
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ts->disconnected_tracing = val;
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}
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else if (strncmp (p, "circular", p1 - p) == 0)
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{
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p = unpack_varlen_hex (++p1, &val);
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ts->circular_buffer = val;
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}
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else
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{
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/* Silently skip unknown optional info. */
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@ -106,6 +106,16 @@ struct trace_status
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/* Unused bytes left in the target's trace buffer. */
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int buffer_free;
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/* 1 if the target will continue tracing after disconnection, else
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0. If the target does not report a value, assume 0. */
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int disconnected_tracing;
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/* 1 if the target is using a circular trace buffer, else 0. If the
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target does not report a value, assume 0. */
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int circular_buffer;
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};
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struct trace_status *current_trace_status (void);
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@ -189,7 +199,7 @@ extern struct breakpoint *create_tracepoint_from_upload (struct uploaded_tp *utp
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extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp);
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extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp);
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extern void disconnect_or_stop_tracing (int from_tty);
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extern void disconnect_tracing (int from_tty);
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extern void start_tracing (void);
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extern void stop_tracing (void);
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