Commit Graph

18 Commits

Author SHA1 Message Date
Joel Brobecker e2882c8578 Update copyright year range in all GDB files
gdb/ChangeLog:

        Update copyright year range in all GDB files
2018-01-02 07:38:06 +04:00
Joel Brobecker 61baf725ec update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
2017-01-01 10:52:34 +04:00
Simon Marchi 38b022b445 Add method/format information to =record-started
Eclipse CDT now supports enabling execution recording using two methods
(full and btrace) and both formats for btrace (bts and pt).  In the
event that recording is enabled behind the back of the GUI (by the user
on the command line, or a script), we need to know which method/format
are being used, so it can be correctly reflected in the interface.  This
patch adds this information to the =record-started async record.

Before:

  =record-started,thread-group="i1"

After:

  =record-started,thread-group="i1",method="btrace",format="bts"
  =record-started,thread-group="i1",method="btrace",format="pt"
  =record-started,thread-group="i1",method="full"

The "format" field is only present when the current method supports
multiple formats (only the btrace method as of now).

gdb/ChangeLog:

	* NEWS: Mention the new fields in =record-started.
	* common/btrace-common.h (btrace_format_short_string): New function
	declaration.
	* common/btrace-common.c (btrace_format_short_string): New
	function.
	* mi/mi-interp.c (mi_record_changed): Output method and format
	fields in the =record-started record.
	* record-btrace.c (record_btrace_open): Adapt record_changed
	notification.
	* record-full.c (record_full_open): Likewise.
	* record.c (cmd_record_stop): Likewise.

gdb/doc/ChangeLog:

	* gdb.texinfo (GDB/MI Async Records): Document method and
	format fields in =record-started.
	* observer.texi (record_changed): Add method and format
	parameters.

gdb/testsuite/ChangeLog:

	* gdb.mi/mi-record-changed.exp: Adjust =record-started output
	matching.
2016-06-06 17:10:18 -04:00
Pedro Alves bc504a3117 Remove trademark acknowledgements throughout
The GNU Coding Standards say:

  "Please do not include any trademark acknowledgements in GNU
  software packages or documentation."

gdb/ChangeLog:
2016-01-12  Pedro Alves  <palves@redhat.com>

	Remove use of the registered trademark symbol throughout.

gdb/gdbserver/ChangeLog:
2016-01-12  Pedro Alves  <palves@redhat.com>

	Remove use of the registered trademark symbol throughout.

gdb/doc/ChangeLog:
2016-01-12  Pedro Alves  <palves@redhat.com>

	Remove use of the registered trademark symbol throughout.
2016-01-12 15:03:11 +00:00
Joel Brobecker 618f726fcb GDB copyright headers update after running GDB's copyright.py script.
gdb/ChangeLog:

        Update year range in copyright notice of all files.
2016-01-01 08:43:22 +04:00
Markus Metzger e7b01ce03d ari, btrace: avoid unsigned long long
Fix the ARI warning about the use of unsigned long long.  We can't use
ULONGEST as this is defined unsigned long on 64-bit systems.  This will
result in a compile error when storing a pointer to an unsigned long long
structure field (declared in perf_event.h as __u64) in a ULONGEST * variable.

Use size_t to hold the buffer size inside GDB and __u64 when interfacing the
Linux kernel.

gdb/
	* nat/linux-btrace.c (perf_event_read): Change the type of DATA_HEAD.
	(perf_event_read_all): Change the type of SIZE and DATA_HEAD.
	(perf_event_read_bts): Change the type of SIZE and READ.
	(linux_enable_bts): Change the type of SIZE, PAGES, DATA_SIZE,
	and DATA_OFFSET.  Move DATA_SIZE declaration.  Restrict the buffer size
	to UINT_MAX.  Check for overflows when using DATA_HEAD from the perf
	mmap page.
	(linux_enable_pt): Change the type of PAGES and SIZE.  Restrict the
	buffer size to UINT_MAX.
	(linux_read_bts): Change the type of BUFFER_SIZE, SIZE, DATA_HEAD, and
	DATA_TAIL.
	* nat/linux-btrace.h (struct perf_event_buffer)<size, data_head>
	<last_head>: Change type.
	* common/btrace-common.h (struct btrace_dat_pt) <size>: Change type.
	* common/btrace-common.c (btrace_data_append): Change the type of
	SIZE.
	* btrace.c (parse_xml_raw): Change the type of SIZE.  Change oddness
	check.
2015-07-15 08:40:57 +02:00
Markus Metzger 9be54cae43 btrace: store raw btrace data
Store the raw branch trace data that has been read from the target.

This data can be used for maintenance commands as well as for generating
a core file for the "record save" command.

gdb/
	* btrace.c (btrace_fetch): Append the new trace data.
	(btrace_clear): Clear the stored trace data.
	* btrace.h (btrace_thread_info) <data>: New.
	* common/btrace-common.h (btrace_data_clear)
	(btrace_data_append): New.
	* common/btrace-common.c (btrace_data_clear)
	(btrace_data_append): New.
2015-07-02 12:54:20 +02:00
Markus Metzger b20a652466 btrace: support Intel(R) Processor Trace
Adds a new command "record btrace pt" to configure the kernel to use
Intel(R) Processor Trace instead of Branch Trace Strore.

The "record btrace" command chooses the tracing format automatically.

Intel(R) Processor Trace support requires Linux 4.1 and libipt.

gdb/
	* NEWS: Announce new commands "record btrace pt" and "record pt".
	Announce new options "set|show record btrace pt buffer-size".
	* btrace.c: Include "rsp-low.h".
	Include "inttypes.h".
	(btrace_add_pc): Add forward declaration.
	(pt_reclassify_insn, ftrace_add_pt, btrace_pt_readmem_callback)
	(pt_translate_cpu_vendor, btrace_finalize_ftrace_pt)
	(btrace_compute_ftrace_pt): New.
	(btrace_compute_ftrace): Support BTRACE_FORMAT_PT.
	(check_xml_btrace_version): Update version check.
	(parse_xml_raw, parse_xml_btrace_pt_config_cpu)
	(parse_xml_btrace_pt_raw, parse_xml_btrace_pt)
	(btrace_pt_config_cpu_attributes, btrace_pt_config_children)
	(btrace_pt_children): New.
	(btrace_children): Add support for "pt".
	(parse_xml_btrace_conf_pt, btrace_conf_pt_attributes): New.
	(btrace_conf_children): Add support for "pt".
	* btrace.h: Include "intel-pt.h".
	(btrace_pt_error): New.
	* common/btrace-common.c (btrace_format_string, btrace_data_fini)
	(btrace_data_empty): Support BTRACE_FORMAT_PT.
	* common/btrace-common.h (btrace_format): Add BTRACE_FORMAT_PT.
	(struct btrace_config_pt): New.
	(struct btrace_config)<pt>: New.
	(struct btrace_data_pt_config, struct btrace_data_pt): New.
	(struct btrace_data)<pt>: New.
	* features/btrace-conf.dtd (btrace-conf)<pt>: New.
	(pt): New.
	* features/btrace.dtd (btrace)<pt>: New.
	(pt, pt-config, cpu): New.
	* nat/linux-btrace.c (perf_event_read, perf_event_read_all)
	(perf_event_pt_event_type, kernel_supports_pt)
	(linux_supports_pt): New.
	(linux_supports_btrace): Support BTRACE_FORMAT_PT.
	(linux_enable_bts): Free tinfo on error.
	(linux_enable_pt): New.
	(linux_enable_btrace): Support BTRACE_FORMAT_PT.
	(linux_disable_pt): New.
	(linux_disable_btrace): Support BTRACE_FORMAT_PT.
	(linux_fill_btrace_pt_config, linux_read_pt): New.
	(linux_read_btrace): Support BTRACE_FORMAT_PT.
	* nat/linux-btrace.h (struct btrace_tinfo_pt): New.
	(struct btrace_target_info)<pt>: New.
	* record-btrace.c (set_record_btrace_pt_cmdlist)
	(show_record_btrace_pt_cmdlist): New.
	(record_btrace_print_pt_conf): New.
	(record_btrace_print_conf): Support BTRACE_FORMAT_PT.
	(btrace_ui_out_decode_error): Support BTRACE_FORMAT_PT.
	(cmd_record_btrace_pt_start): New.
	(cmd_record_btrace_start): Support BTRACE_FORMAT_PT.
	(cmd_set_record_btrace_pt, cmd_show_record_btrace_pt): New.
	(_initialize_record_btrace): Add new commands.
	* remote.c (PACKET_Qbtrace_pt, PACKET_Qbtrace_conf_pt_size): New.
	(remote_protocol_features): Add "Qbtrace:pt".
	Add "Qbtrace-conf:pt:size".
	(remote_supports_btrace): Support BTRACE_FORMAT_PT.
	(btrace_sync_conf): Support PACKET_Qbtrace_conf_pt_size.
	(remote_enable_btrace): Support BTRACE_FORMAT_PT.
	(_initialize_remote): Add new commands.

gdbserver/
	* linux-low.c: Include "rsp-low.h"
	(linux_low_encode_pt_config, linux_low_encode_raw): New.
	(linux_low_read_btrace): Support BTRACE_FORMAT_PT.
	(linux_low_btrace_conf): Support BTRACE_FORMAT_PT.
	(handle_btrace_enable_pt): New.
	(handle_btrace_general_set): Support "pt".
	(handle_btrace_conf_general_set): Support "pt:size".

doc/
	* gdb.texinfo (Process Record and Replay): Spell out that variables
	and registers are not available during btrace replay.
	Describe the new "record btrace pt" command.
	Describe the new "set|show record btrace pt buffer-size" options.
	(General Query Packets): Describe the new Qbtrace:pt and
	Qbtrace-conf:pt:size packets.
	Expand "bts" to "Branch Trace Store".
	Update the branch trace DTD.
2015-07-02 12:49:32 +02:00
Markus Metzger afb778a2a8 btrace: identify cpu
Add a struct for identifying a processor and use it in linux-btrace.c when
identifying the processor we're running on.

We will need this feature for the new btrace format.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* common/btrace-common.h (btrace_cpu_vendor, btrace_cpu): New.
	* nat/linux-btrace.c: (btrace_this_cpu): New.
	(cpu_supports_bts): Call btrace_this_cpu.
	(intel_supports_bts): Add cpu parameter.
2015-02-09 09:49:15 +01:00
Markus Metzger d33501a51f record-btrace: add bts buffer size configuration option
Allow the size of the branch trace ring buffer to be defined by the
user.  The specified buffer size will be used when BTS tracing is
enabled for new threads.

The obtained buffer size may differ from the requested size.  The
actual buffer size for the current thread is shown in the "info record"
command.

Bigger buffers mean longer traces, but also longer processing time.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.c (parse_xml_btrace_conf_bts): Add size.
	(btrace_conf_bts_attributes): New.
	(btrace_conf_children): Add attributes.
	* common/btrace-common.h (btrace_config_bts): New.
	(btrace_config)<bts>: New.
	(btrace_config): Update comment.
	* nat/linux-btrace.c (linux_enable_btrace, linux_enable_bts):
	Use config.
	* features/btrace-conf.dtd: Increment version.  Add size
	attribute to bts element.
	* record-btrace.c (set_record_btrace_bts_cmdlist,
	show_record_btrace_bts_cmdlist): New.
	(record_btrace_adjust_size, record_btrace_print_bts_conf,
	record_btrace_print_conf, cmd_set_record_btrace_bts,
	cmd_show_record_btrace_bts): New.
	(record_btrace_info): Call record_btrace_print_conf.
	(_initialize_record_btrace): Add commands.
	* remote.c: Add PACKET_Qbtrace_conf_bts_size enum.
	(remote_protocol_features): Add Qbtrace-conf:bts:size packet.
	(btrace_sync_conf): Synchronize bts size.
	(_initialize_remote): Add Qbtrace-conf:bts:size packet.
	* NEWS: Announce new commands and new packets.

doc/
	* gdb.texinfo (Branch Trace Configuration Format): Add size.
	(Process Record and Replay): Describe new set|show commands.
	(General Query Packets): Describe Qbtrace-conf:bts:size packet.

testsuite/
	* gdb.btrace/buffer-size: New.

gdbserver/
	* linux-low.c (linux_low_btrace_conf): Print size.
	* server.c (handle_btrace_conf_general_set): New.
	(hanle_general_set): Call handle_btrace_conf_general_set.
	(handle_query): Report Qbtrace-conf:bts:size as supported.
2015-02-09 09:42:28 +01:00
Markus Metzger f4abbc1682 record btrace: add configuration struct
Add a struct to describe the branch trace configuration and use it for
enabling branch tracing.

The user will be able to set configuration fields for each tracing format
to be used for new threads.

The actual configuration that is active for a given thread will be shown
in the "info record" command.

At the moment, the configuration struct only contains a format field
that is set to the only available format.

The format is the only configuration option that can not be set via set
commands.  It is given as argument to the "record btrace" command when
starting recording.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* Makefile.in (XMLFILES): Add btrace-conf.dtd.
	* x86-linux-nat.c (x86_linux_enable_btrace): Update parameters.
	(x86_linux_btrace_conf): New.
	(x86_linux_create_target): Initialize to_btrace_conf.
	* nat/linux-btrace.c (linux_enable_btrace): Update parameters.
	Check format.  Split into this and ...
	(linux_enable_bts): ... this.
	(linux_btrace_conf): New.
	(perf_event_skip_record): Renamed into ...
	(perf_event_skip_bts_record): ... this.  Updated users.
	(linux_disable_btrace): Split into this and ...
	(linux_disable_bts): ... this.
	(linux_read_btrace): Check format.
	* nat/linux-btrace.h (linux_enable_btrace): Update parameters.
	(linux_btrace_conf): New.
	(btrace_target_info)<ptid>: Moved.
	(btrace_target_info)<conf>: New.
	(btrace_target_info): Split into this and ...
	(btrace_tinfo_bts): ... this.  Updated users.
	* btrace.c (btrace_enable): Update parameters.
	(btrace_conf, parse_xml_btrace_conf_bts, parse_xml_btrace_conf)
	(btrace_conf_children, btrace_conf_attributes)
	(btrace_conf_elements): New.
	* btrace.h (btrace_enable): Update parameters.
	(btrace_conf, parse_xml_btrace_conf): New.
	* common/btrace-common.h (btrace_config): New.
	* feature/btrace-conf.dtd: New.
	* record-btrace.c (record_btrace_conf): New.
	(record_btrace_cmdlist): New.
	(record_btrace_enable_warn, record_btrace_open): Pass
	&record_btrace_conf.
	(record_btrace_info): Print recording format.
	(cmd_record_btrace_bts_start): New.
	(cmd_record_btrace_start): Call cmd_record_btrace_bts_start.
	(_initialize_record_btrace): Add "record btrace bts" subcommand.
	Add "record bts" alias command.
	* remote.c (remote_state)<btrace_config>: New.
	(remote_btrace_reset, PACKET_qXfer_btrace_conf): New.
	(remote_protocol_features): Add qXfer:btrace-conf:read.
	(remote_open_1): Call remote_btrace_reset.
	(remote_xfer_partial): Handle TARGET_OBJECT_BTRACE_CONF.
	(btrace_target_info)<conf>: New.
	(btrace_sync_conf, btrace_read_config): New.
	(remote_enable_btrace): Update parameters.  Call btrace_sync_conf and
	btrace_read_conf.
	(remote_btrace_conf): New.
	(init_remote_ops): Initialize to_btrace_conf.
	(_initialize_remote): Add qXfer:btrace-conf packet.
	* target.c (target_enable_btrace): Update parameters.
	(target_btrace_conf): New.
	* target.h (target_enable_btrace): Update parameters.
	(target_btrace_conf): New.
	(target_object)<TARGET_OBJECT_BTRACE_CONF>: New.
	(target_ops)<to_enable_btrace>: Update parameters and comment.
	(target_ops)<to_btrace_conf>: New.
	* target-delegates: Regenerate.
	* target-debug.h (target_debug_print_const_struct_btrace_config_p)
	(target_debug_print_const_struct_btrace_target_info_p): New.
	NEWS: Announce new command and new packet.

doc/
	* gdb.texinfo (Process Record and Replay): Describe the "record
	btrace bts" command.
	(General Query Packets): Describe qXfer:btrace-conf:read packet.
	(Branch Trace Configuration Format): New.

gdbserver/
	* linux-low.c (linux_low_enable_btrace): Update parameters.
	(linux_low_btrace_conf): New.
	(linux_target_ops)<to_btrace_conf>: Initialize.
	* server.c (current_btrace_conf): New.
	(handle_btrace_enable): Rename to ...
	(handle_btrace_enable_bts): ... this.  Pass &current_btrace_conf
	to target_enable_btrace.  Update comment.  Update users.
	(handle_qxfer_btrace_conf): New.
    (qxfer_packets): Add btrace-conf entry.
	(handle_query): Report qXfer:btrace-conf:read as supported packet.
	* target.h (target_ops)<enable_btrace>: Update parameters and comment.
	(target_ops)<read_btrace_conf>: New.
	(target_enable_btrace): Update parameters.
	(target_read_btrace_conf): New.

testsuite/
	* gdb.btrace/delta.exp: Update "info record" output.
	* gdb.btrace/enable.exp: Update "info record" output.
	* gdb.btrace/finish.exp: Update "info record" output.
	* gdb.btrace/instruction_history.exp: Update "info record" output.
	* gdb.btrace/next.exp: Update "info record" output.
	* gdb.btrace/nexti.exp: Update "info record" output.
	* gdb.btrace/step.exp: Update "info record" output.
	* gdb.btrace/stepi.exp: Update "info record" output.
	* gdb.btrace/nohist.exp: Update "info record" output.
2015-02-09 09:38:55 +01:00
Markus Metzger 734b0e4bda btrace: add struct btrace_data
Add a structure to hold the branch trace data and an enum to describe
the format of that data.  So far, only BTS is supported.  Also added
a NONE format to indicate that no branch trace data is available.

This will make it easier to support different branch trace formats in
the future.

2015-02-09  Markus Metzger  <markus.t.metzger@intel.com>

	* Makefile.in (SFILES): Add common/btrace-common.c.
	(COMMON_OBS): Add common/btrace-common.o.
	(btrace-common.o): Add build rules.
	* btrace.c (parse_xml_btrace): Update parameters.
	(parse_xml_btrace_block): Set format field.
	(btrace_add_pc, btrace_fetch): Use struct btrace_data.
	(do_btrace_data_cleanup, make_cleanup_btrace_data): New.
	(btrace_compute_ftrace): Split into this and...
	(btrace_compute_ftrace_bts): ...this.
	(btrace_stitch_trace): Split into this and...
	(btrace_stitch_bts): ...this.
	* btrace.h (parse_xml_btrace): Update parameters.
	(make_cleanup_btrace_data): New.
	* common/btrace-common.c: New.
	* common/btrace-common.h: Include common-defs.h.
	(btrace_block_s): Update comment.
	(btrace_format): New.
	(btrace_format_string): New.
	(btrace_data_bts): New.
	(btrace_data): New.
	(btrace_data_init, btrace_data_fini, btrace_data_empty): New.
	* remote.c (remote_read_btrace): Update parameters.
	* target.c (target_read_btrace): Update parameters.
	* target.h (target_read_btrace): Update parameters.
	(target_ops)<to_read_btrace>: Update parameters.
	* x86-linux-nat.c (x86_linux_read_btrace): Update parameters.
	* target-delegates.c: Regenerate.
	* target-debug (target_debug_print_struct_btrace_data_p): New.
	* nat/linux-btrace.c (linux_read_btrace): Split into this and...
	(linux_read_bts): ...this.
	* nat/linux-btrace.h (linux_read_btrace): Update parameters.

gdbserver/
	* Makefile.in (SFILES): Add common/btrace-common.c.
	(OBS): Add common/btrace-common.o.
	(btrace-common.o): Add build rules.
	* linux-low: Include btrace-common.h.
	(linux_low_read_btrace): Use struct btrace_data.  Call
	btrace_data_init and btrace_data_fini.
2015-02-09 09:21:44 +01:00
Joel Brobecker 32d0add0a6 Update year range in copyright notice of all files owned by the GDB project.
gdb/ChangeLog:

        Update year range in copyright notice of all files.
2015-01-01 13:32:14 +04:00
Gary Benson 462f517e50 Do not include defs.h or server.h in any header file
This commit removes all inclusions of defs.h and server.h from header
files.

gdb/
2014-07-31  Gary Benson  <gbenson@redhat.com>

	* common/btrace-common.h: Do not include defs.h or server.h.
	* nat/mips-linux-watch.h: Likewise.
	* gdb-dlfcn.h: Do not include defs.h.
	* tracefile.h: Likewise.

gdb/gdbserver/
2014-07-31  Gary Benson  <gbenson@redhat.com>

	* ax.h: Do not include server.h.
	* gdbthread.h: Likewise.
	* lynx-low.h: Likewise.
	* notif.h: Likewise.
2014-07-31 13:25:01 +01:00
Markus Metzger 969c39fbcd btrace, gdbserver: read branch trace incrementally
Read branch trace data incrementally and extend the current trace rather than
discarding it and reading the entire trace buffer each time.

If the branch trace buffer overflowed, we can't extend the current trace so we
discard it and start anew by reading the entire branch trace buffer.

2014-01-16  Markus Metzger  <markus.t.metzger@intel.com>

	* common/linux-btrace.c (perf_event_read_bts, linux_read_btrace):
	Support delta reads.
	(linux_disable_btrace): Change return type.
	* common/linux-btrace.h (linux_read_btrace): Change parameters
	and return type to allow error reporting.  Update users.
	(linux_disable_btrace): Change return type.  Update users.
	* common/btrace-common.h (btrace_read_type) <BTRACE_READ_DELTA>:
	New.
	(btrace_error): New.
	(btrace_block) <begin>: Comment on BEGIN == 0.
	* btrace.c (btrace_compute_ftrace): Start from the end of
	the current trace.
	(btrace_stitch_trace, btrace_clear_history): New.
	(btrace_fetch): Read delta trace, return if replaying.
	(btrace_clear): Move clear history code to btrace_clear_history.
	(parse_xml_btrace): Throw an error if parsing failed.
	* target.h (struct target_ops) <to_read_btrace>: Change parameters
	and return type to allow error reporting.
	(target_read_btrace): Change parameters and return type to allow
	error reporting.
	* target.c (target_read_btrace): Update.
	* remote.c (remote_read_btrace): Support delta reads.  Pass
	errors on.
	* NEWS: Announce it.

gdbserver/
	* target.h (target_ops) <read_btrace>: Change parameters and
	return type to allow error reporting.
	* server.c (handle_qxfer_btrace): Support delta reads.  Pass
	trace reading errors on.
	* linux-low.c (linux_low_read_btrace): Pass trace reading
	errors on.
	(linux_low_disable_btrace): New.
2014-01-16 13:11:42 +01:00
Markus Metzger 864089d2f6 btrace: uppercase btrace_read_type
2014-01-16  Markus Metzger  <markus.t.metzger@intel.com>

	* common/btrace-common.h (btrace_read_type) <btrace_read_all>:
	Change to ...
	(btrace_read_type) <BTRACE_READ_ALL>: ... this.  Update users.
	(btrace_read_type) <btrace_read_new>: Change to ...
	(btrace_read_type) <BTRACE_READ_NEW>: ... this.  Update users.
2014-01-16 12:45:10 +01:00
Joel Brobecker ecd75fc8ee Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
Markus Metzger 02d2762576 Add branch trace information to struct thread_info.
Add functions to enable, disable, clear, and fetch a thread's branch trace.

gdb/
	* target.h: Include btrace.h.
	(struct target_ops) <to_supports_btrace, to_enable_btrace,
	to_disable_btrace, to_teardown_btrace, to_read_btrace>: New.
	* target.c (target_supports_btrace): New function.
	(target_enable_btrace): New function.
	(target_disable_btrace): New function.
	(target_teardown_btrace): New function.
	(target_read_btrace): New function.
	* btrace.h: New file.
	* btrace.c: New file.
	* Makefile.in: Add btrace.c.
	* gdbthread.h: Include btrace.h.
	(struct thread_info): Add btrace field.
	* thread.c: Include btrace.h.
	(clear_thread_inferior_resources): Call target_teardown_btrace.
	* common/btrace-common.h: New file.
2013-03-11 08:17:08 +00:00