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Add fast tracepoints.

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* arch-utils.h (default_fast_tracepoint_valid_at): Declare.
	* arch-utils.c (default_fast_tracepoint_valid_at): New function.
	* breakpoint.h (enum bptype): Add bp_fast_tracepoint.
	* breakpoint.c (tracepoint_type): New function.
	(ALL_TRACEPOINTS): Use it.
	(should_be_inserted): Ditto.
	(bpstat_check_location): Ditto.
	(print_one_breakpoint_location): Ditto.
	(user_settable_breakpoint): Ditto.
	(set_breakpoint_location_function): Ditto.
	(disable_breakpoints_in_shlibs): Ditto.
	(delete_trace_command): Ditto.
	(print_it_typical): Add bp_fast_tracepoint case.
	(bpstat_what): Ditto.
	(print_one_breakpoint_location): Ditto.
	(allocate_bp_location): Ditto.
	(mention): Ditto.
	(breakpoint_re_set_one): Ditto.
	(disable_command): Ditto.
	(enable_command): Ditto.
	(check_fast_tracepoint_sals): New function.
	(break_command_really): Call it.
	(ftrace_command): New function.
	(_initialize_breakpoint): Add ftrace command.
	* gdbarch.sh (fast_tracepoint_valid_at): New.
	* gdbarch.h, gdbarch.c: Regenerate.
	* i386-tdep.c (i386_fast_tracepoint_valid_at): New function.
	(i386_gdbarch_init): Use it.
	* remote.c (struct remote_state): New field fast_tracepoints.
	(PACKET_FastTracepoints): New packet config type.
	(remote_fast_tracepoint_feature): New function.
	(remote_protocol_features): Add FastTracepoints.
	(remote_supports_fast_tracepoints): New function.
	(_initialize_remote): Add FastTracepoints.
	* tracepoint.c (download_tracepoint): Add fast tracepoint option.
	* NEWS: Mention fast tracepoints.

	* gdb.texinfo (Create and Delete Tracepoints): Describe fast
	tracepoints.
	(Tracepoint Packets): Describe remote protocol for fast
	tracepoints.

	* gdb.trace/tracecmd.exp: Test ftrace.
This commit is contained in:
Stan Shebs 2010-01-06 04:20:27 +00:00
parent 737a160ed9
commit 7a697b8dd7
16 changed files with 353 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

24
gdb/gdbarch.c
View file

@ -250,6 +250,7 @@ struct gdbarch
int has_global_solist;
int has_global_breakpoints;
gdbarch_has_shared_address_space_ftype *has_shared_address_space;
gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at;
};
@ -391,6 +392,7 @@ struct gdbarch startup_gdbarch =
0, /* has_global_solist */
0, /* has_global_breakpoints */
default_has_shared_address_space, /* has_shared_address_space */
default_fast_tracepoint_valid_at, /* fast_tracepoint_valid_at */
/* startup_gdbarch() */
};
@ -475,6 +477,7 @@ gdbarch_alloc (const struct gdbarch_info *info,
gdbarch->target_signal_from_host = default_target_signal_from_host;
gdbarch->target_signal_to_host = default_target_signal_to_host;
gdbarch->has_shared_address_space = default_has_shared_address_space;
gdbarch->fast_tracepoint_valid_at = default_fast_tracepoint_valid_at;
/* gdbarch_alloc() */
return gdbarch;
@ -653,6 +656,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
/* Skip verify of has_global_solist, invalid_p == 0 */
/* Skip verify of has_global_breakpoints, invalid_p == 0 */
/* Skip verify of has_shared_address_space, invalid_p == 0 */
/* Skip verify of fast_tracepoint_valid_at, invalid_p == 0 */
buf = ui_file_xstrdup (log, &length);
make_cleanup (xfree, buf);
if (length > 0)
@ -825,6 +829,9 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
fprintf_unfiltered (file,
"gdbarch_dump: elf_make_msymbol_special = <%s>\n",
host_address_to_string (gdbarch->elf_make_msymbol_special));
fprintf_unfiltered (file,
"gdbarch_dump: fast_tracepoint_valid_at = <%s>\n",
host_address_to_string (gdbarch->fast_tracepoint_valid_at));
fprintf_unfiltered (file,
"gdbarch_dump: gdbarch_fetch_pointer_argument_p() = %d\n",
gdbarch_fetch_pointer_argument_p (gdbarch));
@ -3528,6 +3535,23 @@ set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch,
gdbarch->has_shared_address_space = has_shared_address_space;
}
int
gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, int *isize, char **msg)
{
gdb_assert (gdbarch != NULL);
gdb_assert (gdbarch->fast_tracepoint_valid_at != NULL);
if (gdbarch_debug >= 2)
fprintf_unfiltered (gdb_stdlog, "gdbarch_fast_tracepoint_valid_at called\n");
return gdbarch->fast_tracepoint_valid_at (gdbarch, addr, isize, msg);
}
void
set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch,
gdbarch_fast_tracepoint_valid_at_ftype fast_tracepoint_valid_at)
{
gdbarch->fast_tracepoint_valid_at = fast_tracepoint_valid_at;
}
/* Keep a registry of per-architecture data-pointers required by GDB
modules. */