00bf0b8586
* 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.
116 lines
2.7 KiB
C
116 lines
2.7 KiB
C
/* This program does two things; it generates valid trace files, and
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it can also be traced so as to test trace file creation from
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GDB. */
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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char spbuf[200];
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char trbuf[1000];
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char *trptr;
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char *tfsizeptr;
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int testglob = 31415;
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int
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start_trace_file (char *filename)
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{
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int fd;
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fd = open (filename, O_WRONLY|O_CREAT|O_APPEND,
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S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
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if (fd < 0)
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return fd;
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/* Write a file header, with a high-bit-set char to indicate a
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binary file, plus a hint as what this file is, and a version
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number in case of future needs. */
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write (fd, "\x7fTRACE0\n", 8);
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return fd;
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}
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void
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finish_trace_file (int fd)
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{
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close (fd);
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}
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void
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write_basic_trace_file ()
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{
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int fd;
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fd = start_trace_file ("basic.tf");
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/* The next part of the file consists of newline-separated lines
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defining status, tracepoints, etc. The section is terminated by
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an empty line. */
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/* Dump the size of the R (register) blocks in traceframes. */
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snprintf (spbuf, sizeof spbuf, "R %x\n", 500 /* FIXME get from arch */);
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write (fd, spbuf, strlen (spbuf));
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/* Dump trace status, in the general form of the qTstatus reply. */
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snprintf (spbuf, sizeof spbuf, "status 0;tstop:0;tframes:1;tcreated:1;tfree:100;tsize:1000\n");
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write (fd, spbuf, strlen (spbuf));
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/* Dump tracepoint definitions, in syntax similar to that used
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for reconnection uploads. */
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snprintf (spbuf, sizeof spbuf, "tp T1:%lx:E:0:0\n",
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(long) &write_basic_trace_file);
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write (fd, spbuf, strlen (spbuf));
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/* (Note that we would only need actions defined if we wanted to
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test tdump.) */
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/* Empty line marks the end of the definition section. */
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write (fd, "\n", 1);
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/* Make up a simulated trace buffer. */
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/* (Encapsulate better if we're going to do lots of this.) */
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trptr = trbuf;
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*((short *) trptr) = 1;
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trptr += sizeof (short);
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tfsizeptr = trptr;
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trptr += sizeof (int);
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*((char *) trptr) = 'M';
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trptr += 1;
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*((long long *) trptr) = (long) &testglob;
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trptr += sizeof (long long);
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*((short *) trptr) = sizeof (testglob);
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trptr += sizeof (short);
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*((int *) trptr) = testglob;
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trptr += sizeof (testglob);
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/* Go back and patch in the frame size. */
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*((int *) tfsizeptr) = trptr - tfsizeptr - sizeof (int);
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/* Write end of tracebuffer marker. */
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*((short *) trptr) = 0;
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trptr += sizeof (short);
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*((int *) trptr) = 0;
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trptr += sizeof (int);
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write (fd, trbuf, trptr - trbuf);
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finish_trace_file (fd);
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}
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void
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done_making_trace_files (void)
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{
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}
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int
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main (int argc, char **argv, char **envp)
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{
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write_basic_trace_file ();
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done_making_trace_files ();
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return 0;
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}
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