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, 89 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.trace/tfile.exp b/gdb/testsuite/gdb.trace/tfile.exp
new file mode 100644
index 0000000..398b5ef
--- /dev/null
+++ b/gdb/testsuite/gdb.trace/tfile.exp
@@ -0,0 +1,89 @@
+#   Copyright 2010 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Test of trace file support.
+
+# Note that unlike most of the tracing tests, this can be run on
+# targets lacking tracepoint support; the program tfile.c has the
+# ability to generate synthetic trace files directly, and the tfile
+# target is available to all GDB configs.
+
+load_lib "trace-support.exp";
+
+if [target_info exists gdb,nofileio] {
+    verbose "Skipping tfile.exp because of no fileio capabilities."
+    continue
+}
+
+if $tracelevel then {
+    strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+gdb_exit
+gdb_start
+set testfile "tfile"
+set srcfile ${testfile}.c
+set binfile $objdir/$subdir/$testfile
+if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
+	  executable {debug nowarnings}] != "" } {
+    untested file.exp
+    return -1
+}
+gdb_reinitialize_dir $srcdir/$subdir
+
+# Make sure we are starting fresh.
+remote_exec build {sh -xc rm\ -f\ basic.tf}
+
+gdb_load $binfile
+
+runto_main
+
+gdb_test "break done_making_trace_files" "" ""
+
+gdb_test "continue" "" ""
+
+# tsave command would be tested here...
+
+gdb_test "continue" "" ""
+
+# Program has presumably exited, now target a trace file it created.
+
+gdb_test "target tfile basic.tf" "Created tracepoint.*" "target tfile"
+
+gdb_test "info trace" ".*tracepoint.*in write_basic_trace_file.*" \
+    "info tracepoints on trace file"
+
+gdb_test "tfind 0" "Found traceframe 0.*" "tfind 0 on trace file"
+
+gdb_test "print testglob" " = 31415" "print testglob on trace file"
+
+gdb_test "tfind" "Target failed to find requested trace frame." \
+    "tfind does not find a second frame in trace file"
+
+gdb_test "tstatus" \
+    "Using a trace file.*
+Trace stopped by a tstop command.*
+Collected 1 trace frames.*
+Trace buffer has 256 bytes free.*
+Looking at trace frame 0, tracepoint .*" \
+    "tstatus on trace file"
+
+
+
+
+