Add trace file support.

	* tracepoint.h (enum trace_stop_reason): New enum.
	(struct trace_status): New struct.
	(parse_trace_status): Declare.
	(struct uploaded_tp): Move here from remote.c,
	add fields for actions.
	(struct uploaded_tsv): New struct.
	* tracepoint.c (tfile_ops): New target vector.
	(trace_fd): New global.
	(tfile_open): New function.
	(tfile_close): New function.
	(tfile_files_info): New function.
	(tfile_get_trace_status): New function.
	(tfile_get_traceframe_address): New function.
	(tfile_trace_find): New function.
	(tfile_fetch_registers): New function.
	(tfile_xfer_partial): New function.
	(tfile_get_trace_state_variable_value): New function.
	(init_tfile_ops): New function.
	(_initialize_tracepoint): Call it, add tfile target.
	(trace_status): New global.
	(current_trace_status): New function.
	(trace_running_p): Remove, change all users to get from
	current_trace_status()->running.
	(get_trace_status): Remove.
	(trace_status_command): Call target_get_trace_status directly,
	report more detail including tracing stop reasons.
	(trace_find_command): Always allow tfind on a file.
	(trace_find_pc_command): Ditto.
	(trace_find_tracepoint_command): Ditto.
	(trace_find_line_command): Ditto.
	(trace_find_range_command): Ditto.
	(trace_find_outside_command): Ditto.
	(trace_frames_offset, cur_offset): Declare as off_t.
	(trace_regblock_size): Rename from reg_size, update users.
	(parse_trace_status): New function.
	(tfile_interp_line): New function.
	(disconnect_or_stop_tracing): Ensure current trace
	status before asking what to do.
	(stop_reason_names): New global.
	(trace_save_command): New command.
	(get_uploaded_tp): Move here from remote.c.
	(find_matching_tracepoint): Ditto.
	(merge_uploaded_tracepoints): New function.
	(parse_trace_status): Use stop_reason_names.
	(_initialize_tracepoint): Define tsave command.
	* target.h (target_ops): New fields to_save_trace_data,
	to_upload_tracepoints, to_upload_trace_state_variables,
	to_get_raw_trace_data, change to_get_trace_status
	to take a pointer to a status struct.
	(target_save_trace_data): New macro.
	(target_upload_tracepoints): New macro.
	(target_upload_trace_state_variables): New macro.
	(target_get_raw_trace_data): New macro.
	* target.c (update_current_target): Add new methods, change
	signature of to_get_trace_status.
	* remote.c (hex2bin): Make globally visible.
	(bin2hex): Ditto.
	(remote_download_trace_state_variable): Download name also.
	(remote_get_trace_status): Update parameter, use
	parse_trace_status.
	(remote_save_trace_data): New function.
	(remote_upload_tracepoints): New function.
	(remote_upload_trace_state_variables): New function.
	(remote_get_raw_trace_data): New function.
	(remote_start_remote): Use them.
	(_initialize_remote_ops): Add operations.
	* ax-gdb.c: Include breakpoint.h.
	* breakpoint.c (create_tracepoint_from_upload): Use
	break_command_really, return tracepoint, warn about unimplemented
	parts.
	* NEWS: Mention trace file addition.

	* gdb.texinfo (Trace Files): New section.
	(Tracepoint Packets): Document QTSave and qTBuffer.
	(Trace File Format): New appendix.

	* generic/gdbtk-bp.c (gdb_trace_status): Use current_trace_status.

	* gdb.trace/tfile.c: New file.
	* gdb.trace/tfile.exp: New file.

1 files changed, 27 insertions, 3 deletions

diff --git a/gdb/target.h b/gdb/target.h
index a020bf7..7103ab2 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -32,6 +32,9 @@ struct bp_target_info;
 struct regcache;
 struct target_section_table;
 struct trace_state_variable;
+struct trace_status;
+struct uploaded_tsv;
+struct uploaded_tp;
 
 /* This include file defines the interface between the main part
    of the debugger, and the part which is target-specific, or
@@ -632,7 +635,7 @@ struct target_ops
     void (*to_trace_start) (void);
 
     /* Get the current status of a tracing run.  */
-    int (*to_get_trace_status) (int *stop_reason);
+    int (*to_get_trace_status) (struct trace_status *ts);
 
     /* Stop a trace run.  */
     void (*to_trace_stop) (void);
@@ -649,6 +652,15 @@ struct target_ops
        location pointed to by VAL, else returning 0.  */
     int (*to_get_trace_state_variable_value) (int tsv, LONGEST *val);
 
+    int (*to_save_trace_data) (char *filename);
+
+    int (*to_upload_tracepoints) (struct uploaded_tp **utpp);
+
+    int (*to_upload_trace_state_variables) (struct uploaded_tsv **utsvp);
+
+    LONGEST (*to_get_raw_trace_data) (gdb_byte *buf,
+				      ULONGEST offset, LONGEST len);
+
     /* Set the target's tracing behavior in response to unexpected
        disconnection - set VAL to 1 to keep tracing, 0 to stop.  */
     void (*to_set_disconnected_tracing) (int val);
@@ -1319,8 +1331,8 @@ extern int target_search_memory (CORE_ADDR start_addr,
 #define target_trace_set_readonly_regions() \
   (*current_target.to_trace_set_readonly_regions) ()
 
-#define target_get_trace_status(stop_reason) \
-  (*current_target.to_get_trace_status) (stop_reason)
+#define target_get_trace_status(ts) \
+  (*current_target.to_get_trace_status) (ts)
 
 #define target_trace_stop() \
   (*current_target.to_trace_stop) ()
@@ -1331,6 +1343,18 @@ extern int target_search_memory (CORE_ADDR start_addr,
 #define target_get_trace_state_variable_value(tsv,val) \
   (*current_target.to_get_trace_state_variable_value) ((tsv), (val))
 
+#define target_save_trace_data(filename) \
+  (*current_target.to_save_trace_data) (filename)
+
+#define target_upload_tracepoints(utpp) \
+  (*current_target.to_upload_tracepoints) (utpp)
+
+#define target_upload_trace_state_variables(utsvp) \
+  (*current_target.to_upload_trace_state_variables) (utsvp)
+
+#define target_get_raw_trace_data(buf,offset,len) \
+  (*current_target.to_get_raw_trace_data) ((buf), (offset), (len))
+
 #define target_set_disconnected_tracing(val) \
   (*current_target.to_set_disconnected_tracing) (val)