As we move code on reading unavailable memory to target side, GDB core
side doesn't need the "switching momentarily out of tfind mode" dance.
The target remote knows how to read live memory (through remote_ops).
Remove set_traceframe_number and
make_cleanup_restore_traceframe_number, since they are no longer used.
gdb:
2014-03-22 Yao Qi <yao@codesourcery.com>
* remote.c (target_read_live_memory): Remove.
(memory_xfer_live_readonly_partial): Rename it to
remote_xfer_live_readonly_partial. Remove argument 'object'.
All callers updated. Call remote_read_bytes_1
instead of target_read_live_memory.
* tracepoint.c (set_traceframe_number): Remove.
(make_cleanup_restore_traceframe_number): Likewise .
* tracepoint.h (set_traceframe_number): Remove declaration.
(make_cleanup_restore_traceframe_number): Likewise.
This patch fixes PR16508, which is about MI "-trace-find frame-number 0"
behaves differently from CLI "tfind 0". In CLI, we check both
status->running and status->filename, but in MI, we only check
status->running, which looks wrong to me. This patch moves the code
of checking to a new function check_trace_running, and use it in
both CLI and MI.
This patch also adds a test case pr16508.exp, which fails without this
fix, and passes with the fix applied.
FAIL: gdb.trace/pr16508.exp: interpreter-exec mi "-trace-find frame-number 0"
gdb:
2014-03-06 Yao Qi <yao@codesourcery.com>
PR breakpoints/16508
* tracepoint.c (check_trace_running): New function.
(trace_find_command): Move code to check_trace_running and
call check_trace_running.
(trace_find_pc_command): Likewise.
(trace_find_tracepoint_command): Likewise.
(trace_find_line_command): Likewise.
(trace_find_range_command): Likewise.
* tracepoint.h (check_trace_running): Likewise.
* mi/mi-main.c (mi_cmd_trace_find): Call check_trace_running.
gdb/testsuite:
2014-03-06 Yao Qi <yao@codesourcery.com>
* gdb.trace/pr16508.exp: New file.
This patch is a refactor which moves trace file writer related code
out of tracepoint.c, which has 6k LOC. It moves general trace file
writer to a new file tracefile.c and moves tfile specific writer to
tracefile-tfile.c.
gdb:
2014-02-23 Yao Qi <yao@codesourcery.com>
* Makefile.in (REMOTE_OBS): Append tracefile.o and
tracefile-tfile.o.
(HFILES_NO_SRCDIR): Add tracefile.h.
* ctf.c: Include "tracefile.h".
* tracefile.h: New file.
* tracefile.c: New file
* tracefile-tfile.c: New file.
* tracepoint.c: Include "tracefile.h".
(free_uploaded_tps, free_uploaded_tsvs): Remove declarations.
(stop_reason_names): Add const.
(trace_file_writer_xfree): Move it to tracefile.c.
(trace_save, trace_save_command, trace_save_tfile): Likewise.
(trace_save_ctf): Likewise.
(struct tfile_trace_file_writer): Move it to tracefile-tfile.c.
(tfile_target_save, tfile_dtor, tfile_start): Likewise.
(tfile_write_header, tfile_write_regblock_type): Likewise.
(tfile_write_status, tfile_write_uploaded_tsv): Likewise.
(tfile_write_uploaded_tp, tfile_write_definition_end): Likewise.
(tfile_write_raw_data, tfile_end): Likewise.
(tfile_trace_file_writer_new): Likewise.
(free_uploaded_tp): Make it extern.
(free_uploaded_tsv): Make it extern.
(_initialize_tracepoint): Move code to register command 'tsave'
to tracefile.c.
* tracepoint.h (stop_reason_names): Declare.
(struct trace_frame_write_ops): Move it to tracefile.h.
(struct trace_file_write_ops): Likewise.
(struct trace_file_writer): Likewise.
(free_uploaded_tsvs, free_uploaded_tps): Declare.
2013-06-26 Pedro Alves <pedro@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* gdb.texinfo (GDB/MI Tracepoint Commands): Document
-trace-frame-collected.
gdb:
2013-06-26 Pedro Alves <pedro@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* mi/mi-cmds.c (mi_cmds): Register -trace-frame-collected.
* mi/mi-cmds.h (mi_cmd_trace_frame_collected): Declare.
* mi/mi-main.c (print_variable_or_computed): New function.
(mi_cmd_trace_frame_collected): New function.
* tracepoint.c (find_trace_state_variable_by_number): New.
(struct traceframe_info): Move to tracepoint.h
(struct collection_list): Likewise.
(do_collect_symbol): Include locals and arguments in the wholly
collected variables list.
(clear_collection_list): Clear wholly collected variables list
and computed variables list.
(append_exp): New function.
(encode_actions_1): Include variables in the wholly
collected variables list. Include memory ranges and
full-fledged expressions in the computed expressions list.
(encode_actions): Move some code to ...
Return the cleanup chain.
(encode_actions_rsp): ... here. New function.
(get_traceframe_location, get_traceframe_info): Remove static.
* tracepoint.h (struct memrange): Moved from tracepoint.c.
(struct collection_list): Moved from tracepoint.c. Add two
new fields 'wholly_collected' and 'computed'.
(find_trace_state_variable_by_number): Declare.
(encode_actions): Adjust declaration.
(encode_actions_rsp): Declare.
(get_traceframe_info, get_traceframe_location): Declare.
* NEWS: Mention new MI command -trace-frame-collected.
2013-06-26 Pedro Alves <pedro@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* ctf.c (ctf_traceframe_info): Push trace state variables
present in the trace data into the traceframe info object.
* breakpoint.c (DEF_VEC_I): Remove.
* common/filestuff.c (DEF_VEC_I): Likewise.
* dwarf2loc.c (DEF_VEC_I): Likewise.
* mi/mi-main.c (DEF_VEC_I): Likewise.
* common/gdb_vecs.h (DEF_VEC_I): Define vector for int.
* features/traceframe-info.dtd: Add tvar element and its
attributes.
* tracepoint.c (free_traceframe_info): Free vector 'tvars'.
(build_traceframe_info): Push trace state variables present in the
trace data into the traceframe info object.
(traceframe_info_start_tvar): New function.
(tvar_attributes): New.
(traceframe_info_children): Add "tvar" element.
* tracepoint.h (struct traceframe_info) <tvars>: New field.
* NEWS: Mention the change in GDB and GDBserver.
gdb/doc:
2013-06-26 Pedro Alves <pedro@codesourcery.com>
* gdb.texinfo (Traceframe Info Format): Document tvar element and
its attributes.
gdb/gdbserver:
2013-06-26 Pedro Alves <pedro@codesourcery.com>
* tracepoint.c (build_traceframe_info_xml): Output trace state
variables present in the trace buffer.
Gareth mentions in PR gdb/15275:
"The MI '-gdb-exit' command mi_cmd_gdb_exit() never calls disconnect_tracing()
and therefore exits correctly."
It should, so to get out of tfind mode, as quit may detach instead of
kill, and we don't want to confuse the memory/register accesses
etc. of the detach process. So we should push down the disconnect
tracing bits at least to quit_force. But we can't as is, as that
would swallow the error thrown by answering "no" to:
Trace is running but will stop on detach; detach anyway? (y or n)
So to address that, we split disconnect_tracing in two. One part that
does the query, and another part that does the rest, and we make
quit_force call the latter.
Looking at quit_force, it does several things, some of which are a bit
independent of the others. It first kills/detaches, and then writes
history, and then runs the final cleanups. It seems better to me to
do each of these things even if the previous thing throws. E.g., as
is, if something throws while detaching, then we skip writing history.
Tested on x86_64 Fedora 17.
gdb/
2013-04-10 Pedro Alves <palves@redhat.com>
* cli/cli-cmds.c (quit_command): Call query_if_trace_running
instead of disconnect_tracing.
* infcmd.c (detach_command, disconnect_command): Call
query_if_trace_running. Adjust.
* top.c: Include "tracepoint.h".
(quit_target): Delete. Contents moved ...
(quit_force): ... here. Wrap each stage of teardown in
TRY_CATCH. Call disconnect_tracing before detaching.
2013-04-10 Hui Zhu <hui@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* configure.ac: Check libbabeltrace is installed.
* config.in: Regenerate.
* configure: Regenerate.
* Makefile.in (LIBBABELTRACE): New.
(CLIBS): Add LIBBABELTRACE.
* ctf.c: Include "exec.h".
(CTF_EVENT_ID_STATUS, CTF_EVENT_ID_TSV_DEF): New macros.
(CTF_EVENT_ID_TP_DEF, ctf_save_write_int32): New macros.
(ctf_save_metadata_header): Define new type aliases in
metadata.
(ctf_write_header): Define event type "tsv_def" and "tp_def"
in metadata. Start a new faked packet for trace status.
(ctf_write_status): Write trace status to CTF.
(ctf_write_uploaded_tsv): Write TSV to CTF.
(ctf_write_uploaded_tp): Write tracepoint definition to CTF.
(ctf_write_definition_end): End the faked packet.
(ctx, ctf_iter, trace_dirname): New.
(start_pos): New variable.
(ctf_destroy, ctf_open_dir, ctf_open): New.
(SET_INT32_FIELD, SET_ARRAY_FIELD, SET_STRING_FIELD): New
macros.
(ctf_read_tsv, ctf_read_tp, ctf_close, ctf_files_info): New.
(ctf_fetch_registers, ctf_xfer_partial): New.
(ctf_get_trace_state_variable_value): New.
(ctf_get_tpnum_from_frame_event): New.
(ctf_get_traceframe_address): New.
(ctf_trace_find, ctf_has_stack): New.
(ctf_has_registers, ctf_traceframe_info, init_ctf_ops): New.
(ctf_get_trace_status, ctf_read_status): New.
(_initialize_ctf): New.
* tracepoint.c (get_tracepoint_number): New
(get_uploaded_tsv): Remove 'static'.
(struct traceframe_info, trace_regblock_size): Move it to ...
* tracepoint.h: ... here.
(get_tracepoint_number): Declare it.
(get_uploaded_tsv): Declare it.
* NEWS: Mention new configure option.
gdb/doc/
2013-04-10 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (Trace Files): Add "target ctf".
gdb/testsuite/
2013-04-10 Yao Qi <yao@codesourcery.com>
* gdb.trace/actions.exp: Save trace data to CTF.
Change to ctf target if GDB supports, read CTF data in ctf
target, and check the actions of tracepoints.
* gdb.trace/while-stepping.exp: Likewise.
* gdb.trace/report.exp: Test GDB saves trace data to CTF
format and read CTF trace file if GDB supports.
* gdb.trace/tstatus.exp: Save trace data to CTF. If ctf
target is supported, change to ctf target, read trace data and
check output of command "tstatus".
* gdb.trace/tsv.exp: Save trace frame to CTF. If GDB supports,
read CTF data by target ctf and call check_tsv.
* remote.c (remote_trace_find): Change type of parameters 'addr1'
and 'addr2' to CORE_ADDR.
* target.c (update_current_target): Update.
* target.h (struct target_ops) <to_trace_find>: Change parameter
type to CORE_ADDR.
* tracepoint.c (tfind_1): Change type of parameters 'addr1' and
'addr2' to CORE_ADDR.
(tfile_trace_find): Likewise.
(tfile_get_traceframe_address): Change return type to CORE_ADDR.
Change local variable 'addr' to type CORE_ADDR.
* tracepoint.h (tfind_1): Update declaration.
This is sort of a continuation of Keith's parse_exp_1 constification
patch. It started out by undoing these bits:
@@ -754,9 +754,12 @@ validate_actionline (char **line, struct
tmp_p = p;
for (loc = t->base.loc; loc; loc = loc->next)
{
- p = tmp_p;
- exp = parse_exp_1 (&p, loc->address,
+ const char *q;
+
+ q = tmp_p;
+ exp = parse_exp_1 (&q, loc->address,
block_for_pc (loc->address), 1);
+ p = (char *) q;
and progressively making more things const upwards, fixing fallout,
rinse repeat, until GDB built again (--enable-targets=all).
That ended up constifying lookup_cmd/add_cmd and (lots of) friends,
and the completers.
I didn't try to constify the command hooks themselves, because I know
upfront there are commands that write to the command string argument,
and I think I managed to stop at a nice non-hacky split point already.
I think the only non-really-super-obvious changes are
tracepoint.c:validate_actionline, and tracepoint.c:trace_dump_actions.
The rest is just mostly about 'char *' => 'const char *', 'char **'=>
'const char **', and the occasional (e.g., deprecated_cmd_warning)
case of 'char **'=> 'const char *', where/when I noticed that nothing
actually cares about the pointer to pointer output.
Tested on x86_64 Fedora 17, native and gdbserver.
gdb/
2013-03-13 Pedro Alves <palves@redhat.com>
* ada-lang.c (struct add_partial_datum) <text, text0, word>: Make
fields const.
(ada_make_symbol_completion_list): Make "text0" parameter const.
* ax-gdb.c (agent_eval_command_one): Make "exp" parameter const.
* breakpoint.c (condition_completer): Make "text" and "word"
parameters const. Adjust.
(check_tracepoint_command): Adjust to validate_actionline
prototype change.
(catch_syscall_completer): Make "text" and "word" parameters
const.
* cli/cli-cmds.c (show_user): Make "comname" local const.
(valid_command_p): Make "command" parameter const.
(alias_command): Make "alias_prefix" and "command_prefix" locals
const.
* cli/cli-decode.c (add_cmd): Make "name" parameter const.
(add_alias_cmd): Make "name" and "oldname" parameters const.
Adjust. No longer make copy of OLDNAME.
(add_prefix_cmd, add_abbrev_prefix_cmd, add_set_or_show_cmd)
(add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_string_noescape_cmd)
(add_setshow_optional_filename_cmd, add_setshow_integer_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd)
(add_setshow_zuinteger_unlimited_cmd, add_setshow_zuinteger_cmd)
(delete_cmd, add_info, add_info_alias, add_com, add_com_alias):
Make "name" parameter const.
(help_cmd): Rename "command" parameter to "arg". New const local
"command".
(find_cmd): Make "command" parameter const.
(lookup_cmd_1): Make "text" parameter pointer to const. Adjust to
deprecated_cmd_warning prototype change.
(undef_cmd_error): Make "cmdtype" parameter const.
(lookup_cmd): Make "line" parameter const.
(deprecated_cmd_warning): Change type of "text" parameter to
pointer to const char, from pointer to pointer to char. Adjust.
(lookup_cmd_composition): Make "text" parameter const.
(complete_on_cmdlist, complete_on_enum): Make "text" and "word"
parameters const.
* cli/cli-decode.h (struct cmd_list_element) <name>: Make field
const.
* cli/cli-script.c (validate_comname): Make "tem" local const.
(define_command): New const local "tem_c". Use it in calls to
lookup_cmd.
(document_command): Make "tem" and "comfull" locals const.
(show_user_1): Make "prefix" and "name" parameters const.
* cli-script.h (show_user_1): Make "prefix" and "name" parameters
const.
* command.h (add_cmd, add_alias_cmd, add_prefix_cmd)
(add_abbrev_prefix_cmd, completer_ftype, lookup_cmd, lookup_cmd_1)
(deprecated_cmd_warning, lookup_cmd_composition, add_com)
(add_com_alias, add_info, add_info_alias, complete_on_cmdlist)
(complete_on_enum, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_string_noescape_cmd)
(add_setshow_optional_filename_cmd, add_setshow_integer_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd)
(add_setshow_zuinteger_cmd, add_setshow_zuinteger_unlimited_cmd):
Change prototypes, constifying strings.
* completer.c (noop_completer, filename_completer): Make "text"
and "prefix" parameters const.
(location_completer, expression_completer)
(complete_line_internal): Make "text" and "prefix" parameters
const and adjust.
(command_completer, signal_completer): Make "text" and "prefix"
parameters const.
* completer.h (noop_completer, filename_completer)
(expression_completer, location_completer, command_completer)
(signal_completer): Change prototypes.
* corefile.c (complete_set_gnutarget): Make "text" and "word"
parameters const.
* cp-abi.c (cp_abi_completer): Likewise.
* expression.h (parse_expression_for_completion): Change
prototype.
* f-lang.c (f_make_symbol_completion_list): Make "text" and "word"
parameters const.
* infcmd.c (_initialize_infcmd): Make "cmd_name" local const.
* infrun.c (handle_completer): Make "text" and "word" parameters
const.
* interps.c (interpreter_completer): Make "text" and "word"
parameters const.
* language.h (struct language_defn)
<la_make_symbol_completion_list>: Make "text" and "word"
parameters const.
* parse.c (parse_exp_1): Move const hack to parse_exp_in_context.
(parse_exp_in_context): Rename to ...
(parse_exp_in_context_1): ... this.
(parse_exp_in_context): Reimplement, with const hack from
parse_exp_1.
(parse_expression_for_completion): Make "string" parameter const.
* printcmd.c (decode_format): Make "string_ptr" parameter pointer
to pointer to const char. Adjust.
(print_command_1): Make "exp" parameter const.
(output_command): Rename to ...
(output_command_const): ... this. Make "exp" parameter const.
(output_command): Reimplement.
(x_command): Adjust.
(display_command): Rename "exp" parameter to "arg". New "exp"
local, const version of "arg".
* python/py-auto-load.c (gdbpy_initialize_auto_load): Make
"cmd_name" local const.
* python/py-cmd.c (cmdpy_destroyer): Cast const away in xfree
call.
(cmdpy_completer): Make "text" and "word" parameters const.
(gdbpy_parse_command_name): Make "prefix_text2" local const.
* python/py-param.c (add_setshow_generic): Make "tmp_name" local
const.
* remote.c (_initialize_remote): Make "cmd_name" local const.
* symtab.c (language_search_unquoted_string): Make "text" and "p"
parameters const. Adjust.
(completion_list_add_fields): Make "sym_text", "text" and "word"
parameters const.
(struct add_name_data) <sym_text, text, word>: Make fields const.
(default_make_symbol_completion_list_break_on): Make "text" and
"word" parameters const. Adjust locals.
(default_make_symbol_completion_list)
(make_symbol_completion_list, make_symbol_completion_type)
(make_symbol_completion_list_fn): Make "text" and "word"
parameters const.
(make_file_symbol_completion_list): Make "text", "word" and
"srcfile" parameters const. Adjust locals.
(add_filename_to_list): Make "text" and "word" parameters const.
(struct add_partial_filename_data) <text, word>: Make fields
const.
(make_source_files_completion_list): Make "text" and "word"
parameters const.
* symtab.h (default_make_symbol_completion_list_break_on)
(default_make_symbol_completion_list, make_symbol_completion_list)
(make_symbol_completion_type enum type_code)
(make_symbol_completion_list_fn make_file_symbol_completion_list)
(make_source_files_completion_list): Change prototype.
* top.c (execute_command): Adjust to pass pointer to pointer to
const char to lookup_cmd, and to deprecated_cmd_warning prototype
change.
(set_verbose): Make "cmdname" local const.
* tracepoint.c (decode_agent_options): Make "exp" parameter const,
and adjust.
(validate_actionline): Make "line" parameter a pointer to const
char, and adjust.
(encode_actions_1): Make "action_exp" local const, and adjust.
(encode_actions): Adjust.
(replace_comma): Delete.
(trace_dump_actions): Make "action_exp" and "next_comma" locals
const, and adjust. Don't frob the action string while splitting
it at commas. Instead, make a copy of each split substring in
turn.
(trace_dump_command): Adjust to validate_actionline prototype
change.
* tracepoint.h (decode_agent_options, decode_agent_options)
(encode_actions, validate_actionline): Change prototypes.
* valprint.h (output_command): Delete declaration.
(output_command_const): Declare.
* value.c (function_destroyer): Cast const away in xfree call.
Hafiz Abid Qadeer <abidh@codesourcery.com>
gdb/
* NEWS: Mention new field "trace-file".
* tracepoint.c (trace_status_mi): Output "trace-file" field.
(tfile_open): Record the trace file's filename in the trace
status.
(tfile_files_info): Mention the name of the trace file.
Check the "filename" field explicitely.
(trace_status_command): Explicitely check "filename" field.
(trace_find_command): Ditto.
(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.
* tracepoint.h (struct trace_status) <from_file>: Rename it
to "filename" and make it hold the trace file's filename
instead of a boolean.
* remote.c (remote_get_trace_status): Initialize "filename"
field with NULL instead of 0.
gdb/doc/
* gdb.texinfo (GDB/MI Tracepoint Commands) <-trace-status>:
Document the "trace-file" field.
gdb/testsuite/
* gdb.trace/tfile.exp: Add test for -trace-status command.
Hafiz Abid Qadeer <abidh@codesourcery.com>
gdb/
* tracepoint.h (validate_trace_state_variable_name): Declare.
* tracepoint.c (validate_trace_state_variable_name): New.
(trace_variable_command): Parse the trace state variable's name
without using parse_expression. Do several validations.
* mi/mi-main.c (mi_cmd_trace_define_variable): Don't parse the
trace state variable's name with parse_expression. Validate it.
gdb/testsuite/
* gdb.trace/tsv.exp: Adjust tests, and add a few more.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* breakpoint.h (struct tracepoint): New field traceframe_usage.
* breakpoint.c (print_one_breakpoint_location): Identify
tracepoints as such when reporting hit counts, report
trace buffer usage.
(create_tracepoint_from_upload): Copy status info.
* tracepoint.h (struct trace_status): Rename error_desc to stop_desc,
add fields user_name, notes, start_time, stop_time.
(struct uploaded_tp): Add fields hit_count, traceframe_usage.
* tracepoint.c (trace_user): New global.
(trace_notes): New global.
(trace_stop_notes): New global.
(start_tracing): Add argument and trace note handling.
(stop_tracing): Ditto.
(trace_start_command): Add notes argument.
(trace_stop_command): Ditto.
(trace_status_command): Report additional status info.
(trace_status_mi): Similarly.
(trace_save): Update, record tracepoint status.
(set_disconnected_tracing): Call target method directly.
(send_disconnected_tracing_value): Remove.
(set_trace_user): New function.
(set_trace_notes): New function.
(set_trace_stop_notes): New function.
(parse_trace_status): Handle additional status.
(parse_tracepoint_status): New function.
(parse_tracepoint_definition): Call it.
(tfile_get_tracepoint_status): New function.
(init_tfile_ops): Use it.
(_initialize_tracepoint): Add new setshows.
* target.h (struct target_ops): New methods to_get_tracepoint_status
and to_set_trace_notes.
(target_get_tracepoint_status): New macro.
(target_set_trace_notes): New macro.
* target.c (update_current_target): Add new methods.
* remote.c (remote_get_tracepoint_status): New function.
(remote_set_trace_notes): New function.
(init_remote_ops): Add them.
* mi/mi-main.c (mi_cmd_trace_start): Add argument to call.
(mi_cmd_trace_stop): Ditto.
* tracepoint.c (struct tracepoint): New field traceframe_usage.
(tracing_start_time): New global.
(tracing_stop_time): New global.
(tracing_user_name): New global.
(tracing_notes): New global.
(tracing_stop_note): New global.
(cmd_qtstart): Set traceframe_usage, start_time.
(stop_tracing): Set stop_time.
(cmd_qtstatus): Report additional status.
(cmd_qtp): New function.
(handle_tracepoint_query): Call it.
(cmd_qtnotes): New function.
(handle_tracepoint_general_set): Call it.
(get_timestamp): Rename from tsv_get_timestamp.
* gdb.texinfo (Starting and Stopping Trace Experiments): Document
note-related options and variables.
(Tracepoint Packets): Document packet changes.
* gdb.trace/tstatus.exp: New.
* gdb.trace/actions.c: Include string.h.
* target.c (target_read_live_memory): New function.
(memory_xfer_live_readonly_partial): New.
(memory_xfer_partial): If reading from a traceframe, fallback to
reading unavailable read-only memory from read-only regions of
live target memory.
* tracepoint.c (disconnect_tracing): Adjust.
(set_current_traceframe): New, factored out from
set_traceframe_number.
(set_traceframe_number): Reimplement to only change the traceframe
number on the GDB side.
(do_restore_current_traceframe_cleanup): Adjust.
(make_cleanup_restore_traceframe_number): New.
(cur_traceframe_number): New global.
(tfile_open): Set cur_traceframe_number to no traceframe.
(set_tfile_traceframe): New function.
(tfile_trace_find): If looking up a traceframe using any method
other than by number, make sure the current tfile traceframe
matches gdb's current traceframe. Update the current tfile
traceframe if the lookup succeeded.
(tfile_fetch_registers, tfile_xfer_partial)
(tfile_get_trace_state_variable_value): Make sure the remote
traceframe matches gdb's current traceframe.
* remote.c (remote_traceframe_number): New global.
(remote_open_1): Set it to -1.
(set_remote_traceframe): New function.
(remote_fetch_registers, remote_store_registers)
(remote_xfer_memory, remote_xfer_partial)
(remote_get_trace_state_variable_value): Make sure the remote
traceframe matches gdb's current traceframe.
(remote_trace_find): If looking up a traceframe using any method
other than by number, make sure the current remote traceframe
matches gdb's current traceframe. Update the current remote
traceframe if the lookup succeeded.
* infrun.c (fetch_inferior_event): Adjust.
* tracepoint.h (set_current_traceframe): Declare.
(get_traceframe_number, set_traceframe_number): Add describing
comments.
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.
* breakpoint.c (tracepoint_save_command): Include variables,
conditionals, tracepoint types, and default-collect.
* tracepoint.c (save_trace_state_variables): New function.
* tracepoint.h (save_trace_state_variables): Declare it.
* gdb.trace/save-trace.exp: Test save/restore of default-collect
and tracepoint conditionals.
(gdb_verify_tracepoints): Delete unused return.
* defs.h (read_command_lines, read_command_lines_1): New
parameters validator and closure.
* tracepoint.h (struct action_line): Remove.
* breakpoint.h (struct breakpoint): Remove the 'actions'
field.
* defs.h (enum command_control_type): New value
while_stepping_control.
(struct command_line): Add comments.
* breakpoint.c (breakoint_is_tracepoint): New.
(breakpoint_set_commands): For tracepoints,
verify the commands are permissible.
(check_tracepoint_commands): New.
(commands_command): Require that each new line is validated using
check_tracepoint_command, if we set commands for a tracepoint.
(create_tracepoint_from_upload): Likewise.
(print_one_breakpoint_location): Remove the code to print
actions specifically.
(tracepoint_save_command): Relay to print_command_lines.
* cli/cli-script.c (process_next_line): New parameters validator
and closure. Handle 'while-stepping'. Call validator if not null.
(read_command_lines, read_command_lines1): Likewise.
(recurse_read_control_structure): New parameters validator and
closure. Handle while_stepping_control.
(print_command_lines): Handle while-stepping.
(get_command_line, define_command, document_command): Adjust.
* remote.c (remote_download_tracepoint): Adjust.
* tracepoint.c (make_cleanup_free_actions, read_actions)
(free_actions, do_free_actions_cleanup): Remove.
(trace_actions_command): Use read_command_lines.
(validate_actionline): Use error in one place.
(encode_actions_1): New, extracted from...
(encode_actions): ...this. Also use cleanups for exception
safety.
(trace_dump_command): Adjust.
* mi/mi-cmd-break (mi_cmd_break_commands): Validate commands if
it's tracepoint.
Pedro Alves <pedro@codesourcery.com>
* target.h (struct target_ops): New method
to_set_circular_trace_buffer.
(target_set_circular_trace_buffer): New macro.
* target.c (update_current_target): Add
to_set_circular_trace_buffer, fix to_set_disconnected_tracing
default behavior.
* remote.c (remote_set_circular_trace_buffer): New function.
(init_remote_ops): Add it to vector.
* tracepoint.h (struct trace_status): New field traceframes_created,
change buffer_size and buffer_free to int.
* tracepoint.c (circular_trace_buffer): New global.
(start_tracing): Send values of disconnected tracing and circular
trace buffer settings.
(set_circular_trace_buffer): New function.
(parse_trace_state): Handle total space and frames created.
(trace_status_command): Display total space and total frames
created.
(trace_save): Write out new status values.
(parse_trace_status): Set traceframe_count, traceframes_created,
buffer_free and buffer_size to -1 by default.
(_initialize_tracepoint): New setshow for circular-trace-buffer.
* NEWS: Mention the circular trace buffer option.
* gdb.texinfo (Starting and Stopping Trace Experiments): Describe
circular-trace-buffer.
(Tracepoint Packets): Describe QTBuffer, and details of the
qTStatus reply.
* gdb.trace/circ.exp: Test circular-trace-buffer.
* gdb.trace/tfile.exp: Update tstatus test.
(cleanup_restore_current_traceframe): Declare.
* tracepoint.c (set_traceframe_number): New.
(struct current_traceframe_cleanup): New.
(do_restore_current_traceframe_cleanup)
(restore_current_traceframe_cleanup_dtor)
(make_cleanup_restore_current_traceframe): New.
* infrun.c: Include tracepoint.h.
(fetch_inferior_event): Switch out and in of tfind mode.
* 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.
